JP2007126151A - Vehicle door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle door having a reduced weight contributive to the reduced weight of a vehicle. <P>SOLUTION: A tailgate 1 as the vehicle door comprises an outer panel 2 provided for the outside of the vehicle, and an inner panel 3 provided for the inside of the vehicle and joined to the outer panel 2. The inner panel 3 has a trimmed opening portion 11 formed while leaving an edge 10 of the whole periphery. The tailgate 1 has a module plate 4 which is a T- or approximately T-shaped reinforcing member consisting of a first extending portion 13 extending sideways and a second extending portion 14 extending downward from the sideways center or approximate center of the first extending portion 13. The ends in the longitudinal direction of the first extending portion 13 are joined to the right and left edges of the inner panel 3, respectively, and the lower end of the second extending portion 14 is joined to the lower edge of the inner panel 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle door and a method for manufacturing the same, and can be used for, for example, a vehicle tailgate, also called a back door, or a side door.

  The tailgate, which is the rear door of a four-wheel vehicle, connects the outer panel on the outside of the vehicle with the inner panel on the inside of the vehicle, and door components such as door locks and key cylinders between the outer panel and the inner panel. It is formed by incorporating.

  In the tailgate disclosed in JP-A-8-142676, the inner panel is partitioned by an upper opening corresponding to a window hole formed in the outer panel and a partition that extends in the left-right direction with respect to the upper opening. A substantially rectangular module plate having a size that closes the lower opening in the lower opening and having door components attached in advance. I try to fit it.

  Currently, there is a need to reduce vehicle weight in order to improve vehicle fuel efficiency. The tailgate is a part of the vehicle. Therefore, the tailgate is involved in the vehicle weight. However, the above-described conventional tailgate is not sufficient in reducing the weight.

  An object of the present invention is to provide a vehicle door that can reduce the weight of the door and contribute to a reduction in the weight of the vehicle, and a method of manufacturing the vehicle door.

  The vehicle door according to the present invention is a vehicle door formed by including an outer panel on the vehicle outer side and an inner panel on the vehicle inner side coupled to the outer panel. It is characterized by having a frame shape in which an opening is formed, leaving only

  In this vehicle door, since the inner panel has a frame shape in which the opening is formed leaving only the edge of the entire circumference, there is no partition part for partitioning between the upper and lower openings, The weight of the inner panel is reduced by this amount. As a result, the overall weight of the door is reduced, which can contribute to a reduction in the weight of the vehicle to which the door is attached.

  Such a vehicle door is provided with a reinforcing member for improving the strength of the inner panel and ensuring the required door strength. The reinforcing member may have an arbitrary shape such as a substantially square shape, but a first extension portion extending in the left-right direction and a second extension extending downward from the center in the left-right direction or the substantially center of the first extension portion. It is preferable to have at least a first extending portion among the protruding portions, and the first extending portion is constructed between the left and right edge portions of the inner panel.

  According to this, the reinforcing member is a T-shaped or substantially T-shaped consisting of the first extending portion and the second extending portion, or an elongated shape that is long in the left-right direction consisting of only the first extending portion, In any case, since the area is smaller than that of the substantially rectangular shape, the reinforcing member is reduced in weight and contributes to reduction in the weight of the door. Moreover, the inner panel is reinforced and the door strength is improved by the first extending part being installed between the left and right edges of the inner panel.

  When the reinforcing member is T-shaped or substantially T-shaped consisting of the first extension part and the second extension part, the respective ends in the length direction of the first extension part are the left and right edges of the inner panel. The lower end portion of the second extension portion is joined to the lower edge portion of the inner panel.

  As described above, when the reinforcing member is T-shaped or substantially T-shaped including the first extending portion and the second extending portion, the reinforcing member may be simply planar, but the first extending portion Are formed on the left and right side portions of the second extension portion and the left and right side portions of the second extension portion, and the ribs on the lower portion of the first extension portion and the ribs on the left side of the second extension portion are connected continuously. It is preferable that the lower rib of the first extending portion and the right rib of the second extending portion are continuous.

  According to this, the strength of the reinforcing member is increased by these ribs, and these ribs are continuously formed across the first extension portion and the second extension portion that are orthogonal or substantially orthogonal to each other. Therefore, the vehicle door can be reinforced by the reinforcing member in two dimensions of the spreading surface of the door surface.

  When the reinforcing member has a long and narrow shape in the left-right direction consisting of only the first extension portion, the respective end portions in the length direction of the first extension portion are joined to the left and right edges of the inner panel. Is done.

  In this way, even when the reinforcing member has a long and narrow shape in the left-right direction consisting of only the first extending portion, the reinforcing member may be simply planar. It is preferable to use a bending material having a web in a direction and a flange bent from at least one of the upper and lower ends of the web.

  According to this, the strength of the reinforcing member itself is increased, and the door strength can be increased.

  Further, when the reinforcing member is a bending material having a web whose longitudinal direction is the width direction and a flange bent from the web, the number of the webs may be one, and thereby the reinforcing member may have an angle shape. It is preferable that flanges are provided at both the upper and lower ends of the web, and these two flanges are formed continuously in the length direction of the web.

  According to this, the reinforcing member which is a bent material having a substantially C-shaped cross section between the web and the two flanges has a channel shape, and the strength of the reinforcing member is sufficiently increased by the two flanges. Unlike the case where the member is T-shaped or substantially T-shaped consisting of the first extending portion and the second extending portion, the lower flange is in the middle of the length direction of the web, like the upper flange. Can be continuous without interruption. For this reason, the strength by the upper and lower flanges is ensured as it is, and the strength and door strength of the inner panel reinforced by the reinforcing member can be sufficiently increased.

  Further, when the reinforcing member is a bent material having a substantially C-shaped cross section with a web and two flanges, the opening in the substantially C-shaped cross section of the reinforcing member faces the vehicle outer side, and the length direction of the reinforcing member Are joined to the inner panel surface of the inner panel.

  According to this, since the two flanges face the outside of the vehicle and these flanges are housed in a space for securing the door thickness, the door thickness can be suppressed to a predetermined thickness.

  A plurality of door components that must be assembled to the vehicle door may be attached to the reinforcing member, may be attached to the inner panel, or may be attached to both the reinforcing member and the inner panel. When all or some of the door parts are attached to the reinforcing member, the reinforcing member can be used as an attaching member for attaching the door part, and the member can be shared.

  Further, when the door part is attached to the reinforcing member before the reinforcing member is attached to the inner panel, and the reinforcing member is a module member to which the door part is previously attached, the inner panel By attaching the reinforcing member to the door, the door part attached to the reinforcing member is assembled at a predetermined position at the same time.

  The reinforcing member has a T-shape or a substantially T-shape composed of the first extension portion and the second extension portion, and the end portions in the length direction of the first extension portion are the left and right sides of the inner panel. When the lower end portion of the second extending portion is joined to the lower edge portion of the inner panel, the shape of the reinforcing member is effectively used to make various doors to the reinforcing member. Parts can be installed at locations corresponding to the function of each door part. For example, if the door part has a key cylinder, wiper motor, outer handle, and door lock, the key cylinder and wiper motor are attached to the first extension, and the first extension and the second extension. An outer handle is attached to a connecting portion with the part, and a door lock is attached to the second extending part.

  In addition, the reinforcing member has a long and narrow shape in the left-right direction including only the first extending portion, and the respective end portions in the length direction of the first extending portion are joined to the left and right edge portions of the inner panel. In this case, a wiper motor, an outer handle, and a key cylinder are attached to the reinforcing member, and a door lock is attached to the inner panel.

  Moreover, by making the cross-sectional shape of the edge part of an inner panel into a hat shape, the cross-sectional shape of the junction part of an outer panel, an inner panel, and a reinforcement member is a hat shape where the cross-sectional shape opened toward the vehicle outer side. A box cross-sectional shape in which the end of the outer panel is joined to the surface of the inner panel at the outer side of the vehicle and the end of the reinforcing member is joined to the surface of the inner panel at the inner side of the vehicle.

  According to this, the joint part of an outer panel, an inner panel, and a reinforcement member becomes what has big intensity | strength, and can improve the intensity | strength of the whole door.

  Moreover, you may attach the outer handle used when opening and closing a door to a reinforcement member.

  According to this, since the outer handle is not attached to the outer panel, the operating force applied to the outer handle does not directly act on the outer panel, and this operating force is received by the reinforcing member. For this reason, problems that occur when the operating force applied to the outer handle directly acts on the outer panel, for example, problems such as partial deformation of the outer panel, can be solved.

  Further, when the outer handle is attached to the reinforcing member via a bracket, a license lamp may be attached to the bracket.

  According to this, the bracket for mounting the outer handle also serves as the bracket for mounting the license lamp, so that the number of parts can be reduced and the number of parts can be reduced. As a result, the weight of the door can be reduced.

  The location of the inner panel to which the end of the reinforcing member is joined may be a location that is perpendicular or substantially perpendicular to the door opening / closing direction, or may be a location that is parallel or substantially parallel to the door opening / closing direction. .

  In the latter case, the inner panel has an upright portion that rises at a right angle or a substantially right angle with respect to the door opening / closing direction in order to secure a predetermined distance from the outer panel and form a predetermined thickness of the door. Therefore, the end portion of the reinforcing member and the inner panel can be joined using the upright portion. In addition, unlike the former case, the inner panel does not change shape suddenly or can be made into a gentle shape with few places where the shape changes suddenly, so that concentrated stress is generated due to impact load when the door is opened and closed. Can be suppressed.

  In addition, a hat-shaped portion having a hat-shaped cross-section over the entire inner panel is formed at the edge of the inner panel, and by combining the inner panel and the outer panel, a cross-sectional box shape is formed over the entire periphery of the door. It is preferable to form a box-shaped part.

  According to this, the strength of the whole door is ensured by the box-shaped portion around the door. The inner panel has a T-shaped or substantially T-shaped reinforcing member made up of the first extending portion and the second extending portion, or a long and narrow reinforcing member made only of the first extending portion. By combining, the strength of the door strength is further improved.

  The inner panel may be formed by a single blank material, or may be formed by a tailored blank formed by joining a plurality of blank materials including blank materials having different plate thicknesses.

  If the inner panel is the latter, it is possible to simultaneously satisfy the conflicting demands regarding door strength and door weight by using a blank having a large thickness at a location where strength is required.

  An example of the case where the inner panel is the latter is that the tailored blank is composed of a blank material that forms a hinge mounting location where a door hinge is mounted and a blank material that forms a location other than the hinge mounting location. The thickness of the blank material forming the attachment location is made larger than that of the blank material forming the location other than the hinge attachment location.

  According to this, the strength required for the hinge mounting location can be secured with a blank material with a large plate thickness, and by forming a portion other than the hinge mounting location occupying a large area of the inner panel with a blank material with a small plate thickness , Door weight can be reduced.

  Moreover, although at least one part of locations other than a hinge attachment location may be formed with one blank material, you may form by joining the several blank material with the same board thickness.

  According to the latter, it is possible to improve the material yield of blanks that are stamped and formed by pressing even if at least a part of the part other than the hinge mounting part has a bent part. it can.

  Further, in the vehicle door according to the present invention described above, the joining between the inner panel and the reinforcing member and the joining between the outer panel and the reinforcing member may be performed by welding such as spot welding. May be used.

  A vehicle door manufacturing method according to the present invention includes an outer panel on the vehicle outer side, an inner panel on the vehicle inner side having a frame shape in which a large opening is formed on the inner side, leaving only the entire peripheral edge, A reinforcing member having at least a first extending portion among a first extending portion extending in the left-right direction and a second extending portion extending downward from the center in the left-right direction or the substantially center of the first extending portion. A vehicle door by combining the outer panel and the inner panel after performing an operation of joining each end of the reinforcing member to the edge of the inner panel. After performing the operation of joining the panel, the outer panel, the inner panel, and the reinforcing member that are joined and integrated are painted, and then the door component is attached to the reinforcing member and / or the inner panel. With It is characterized in that to perform the work.

  According to this manufacturing method, the outer panel, the inner panel, and the reinforcing member are coated after they are joined and integrated, so that it is not necessary to perform the painting work as an individual work, thereby improving workability. Moreover, even if joining of an inner panel and a reinforcement member and joining of an outer panel and a reinforcement member are performed by welding, such as spot welding, all the welding parts can be painted by a painting operation.

  In this manufacturing method, the assembly work of the door parts performed after the outer panel, the inner panel, and the reinforcement member is painted may be performed by attaching all the door parts to the inner panel or the reinforcement member. The door parts may be attached to the inner panel and the remaining door parts may be attached to the reinforcing member.

  The vehicle door manufacturing method according to the present invention includes an outer panel on the outer side of the vehicle, and an inner panel on the inner side of the vehicle in which a large opening is formed on the inner side, leaving only the entire peripheral edge. And at least a first extension part of the first extension part extending in the left-right direction and the second extension part extending downward from the center in the left-right direction or the substantially center of the first extension part. A method of manufacturing a vehicle door by combining a reinforcing member, and combining the outer panel and the inner panel first, then coating the outer panel and the inner panel, The reinforcing member to which the door part is attached is attached to the inner panel.

  According to this manufacturing method, since the outer panel and the inner panel are coated after they are joined and integrated, it is not necessary to perform the painting work as an individual work, and the workability is improved accordingly. In addition, since the door part is attached to the reinforcing member in advance, when the work for installing the reinforcing member between the left and right side edges of the edge of the inner panel is performed, the door part attached to the reinforcing member Assembling work to the door is completed at the same time, and attaching work of the door part to the reinforcing member can be performed in a place where the surroundings are open, so that workability is improved.

  In addition, since the painting operation of the outer panel and the inner panel has already been completed at the time of joining the reinforcing member and the inner panel and the joining operation of the reinforcing member and the outer panel in this manufacturing method, the reinforcing member and the inner panel are attached. The work for joining and the work for joining the reinforcing member and the outer panel are preferably performed using a coupling tool such as a bolt and a nut.

  Further, in this manufacturing method, the door parts that are attached to the reinforcing member in advance may be all door parts or some of them.

  The vehicle door of the present invention described above may be a tailgate or a side door.

  When the vehicle door according to the present invention is a tailgate, the tailgate may be a vertically openable / closable tailgate having a hinge serving as an upper opening / closing center portion of the tailgate, and the hinge is a side portion. A laterally open / closed tailgate may be provided. When the vehicle door according to the present invention is a side door, it may be a hinged door type door that opens and closes by a hinge, or may be a slide type side door that opens and closes by sliding movement.

  According to the present invention, it is possible to reduce the weight of the door, and to obtain an effect that it can contribute to a reduction in the weight of the vehicle.

  In order to describe the present invention in more detail, it will be described with reference to the accompanying drawings.

  FIG. 1 is an exploded perspective view of a tailgate 1 that is a door of an automobile according to the first embodiment. The tailgate 1 includes an outer panel 2 outside the vehicle, an inner panel 3 inside the vehicle coupled to the outer panel 2, and a module that is coupled to the outer panel 2 and the inner panel 3 and serves as a reinforcing member. A plate 4, a tailgate component 5 that is a door component attached to the outer surface of the module plate 4, and a lining fixed to the inner surface of the module plate 4 and the inner surface of the inner panel 3. 6. The outer panel 2, the inner panel 3, and the module plate 4 are made of a metal plate, and the lining 6 is made of a synthetic resin.

  A window hole 7 into which glass is fitted is formed in substantially the upper half of the outer panel 2, and below that is a shielding part 9 in which a recess 8 to which a license plate is attached is formed.

  The inner panel 3 has an overall shape and size corresponding to the outer panel 2 and is formed by pressing, punching, trimming, etc. a sheet metal. The inner panel 3 has an edge 10 on the entire circumference. It has a frame shape in which a large opening 11 is formed. The substantially upper half of the opening 11 has a size and shape corresponding to the window hole 7 of the outer panel 2, and the opening 11 has a large vertical dimension extending to the bottom of the window hole 7. . Of the edge portion 10 of the inner panel 3, the lower edge portion 10A has a larger width dimension than the left and right edge portions 10B, 10C and the upper edge portion 10D. A bulging portion 12 that bulges out is provided.

  The module plate 4 is formed by bending or punching a sheet metal, and the overall shape is substantially T-shaped. That is, the module plate 4 includes a first extending portion 13 that extends in the left-right direction and a second extending portion 14 that extends downward from the approximate center of the first extending portion 13. Ribs 15 having a rising amount toward the outside of the vehicle are formed at the lower part of the first extension part 13 and the left and right side parts of the second extension part 14, and these two ribs 15 are formed in the first extension part 13. From the lower part of the extension part 13 to the left side part of the second extension part 14, and from the lower part of the first extension part 13 to the right side part of the second extension part 14, respectively. In addition, a standing portion 16 that extends in the left-right direction and stands up to the outside of the vehicle is formed at the lower portion of the second extending portion 14.

  The tailgate component 5 includes a key cylinder 17, a wiper motor 18, an outer handle 19, and a door lock 20. As shown in FIG. 2, these tailgate parts 5 are attached to respective predetermined positions on the outer surface of the module plate 4. Specifically, the key cylinder 17 and the wiper motor 18 are attached to the first extending portion 13 so as to be separated from the left and right, and the outer handle 19 includes the first extending portion 13, the second extending portion 14, and the like. The door lock 20 is attached to the standing part 16 at the lower part of the second extension part 14.

  The key cylinder 17, the wiper motor 18 and the door lock 20 are coupled to the module plate 4 with bolts, the brackets 21 and 22 are joined to the module plate 4 by spot welding, and the outer handle 19 is bolts and nuts to these brackets 21 and 22. It is combined with.

  Further, a rod 23 for transmitting an operation force when the key cylinder 17 is operated by key operation to the door lock 20 is installed between the key cylinder 17 and the door lock 20, and between the outer handle 19 and the door lock 20. In addition, a rod 24 for transmitting an operation force when the outer handle 19 is manually operated to the door lock 20 is installed. These rods 23 and 24 are arranged along the second extending portion 14 that extends vertically on the module plate 4.

  Further, a harness 25 extending from the left end portion of the first extension portion 13 in FIG. 2 to the wiper motor 18 is wired to the first extension portion 13 extending to the left and right of the module plate 4. A coupler 26 is provided at the opposite end.

  The lining 6 shown in FIG. 1 has a substantially square shape having an area larger than that of the module plate 4, and therefore, the entire module plate 4 can be covered by the lining 6 from the inside of the vehicle. A plurality of clips 27 inserted and locked in locking holes formed in the inner panel 3 and the module plate 4 are provided on the outer surface of the lining 6 on the vehicle.

  As shown in FIG. 4, the cross-sectional shape of the edge portion 10 of the inner panel 3 is a hat shape that opens toward the vehicle outer side. The hat-shaped portion 28 is formed over substantially the entire circumference of the inner panel 3 excluding the bulging portion 12 shown in FIG. 1, that is, substantially the entire circumference around the opening portion 11. The hat-shaped portions 28 in the lower edge portion 10A, the left and right edge portions 10B and 10C, and the upper edge portion 10D have width dimensions corresponding to the width dimensions and the like of these lower edge portions 10A, left and right edge portions 10B and 10C, and the upper edge portion 10D. And a height dimension.

  As shown in FIG. 4, a flange portion 28A is provided at the outer end portion of the hat-shaped portion 28, and hemming is performed on the flange portion 28A by bending and crimping the outer end portion 2A of the outer panel 2. Further, the outer panel 2 and the inner panel 3 are joined by spot welding the outer panel 2 and the inner panel 3.

  As described above, the outer panel 2 is coupled to the outer surface of the inner panel 3 while the module plate 4 has the left and right end portions of the first extending portion 13 of the left and right edge portions 10B and 10C of the inner panel 3. A lower end portion of the second extending portion 14 is coupled to a vehicle inner surface of the lower edge portion 10A of the inner panel on the vehicle inner surface. These connections are provided at the edge 10 of the inner panel 3 as shown in FIG. 4, which shows a joint structure between the left end of the first extension 13 of the module plate 4 and the left edge 10 </ b> B of the inner panel 3. This is done by screwing and tightening a nut 29A to the stud bolt 29. Note that the lower end portion of the second extension portion 14 of the module plate 4 and the lower edge portion 10 </ b> A of the inner panel 3 are joined by the stud bolt 29 and the nut 29 </ b> A, and the standing portion 16 is provided at the lower portion of the second extension portion 14. Therefore, the operation is performed slightly above the upright portion 16.

  As described above, the outer panel 2, the inner panel 3, and the module plate 4 are joined at the three end portions of the substantially T-shaped module plate 4, and the cross-sectional shapes of these joined portions are shown in FIG. As shown, the end portion of the outer panel 2 is coupled to the vehicle outer surface of the edge 10 of the inner panel 3 whose cross-sectional shape is a hat shape opening toward the vehicle outer side, and the module is connected to the vehicle inner surface. The box has a cross-sectional shape in which the end of the plate 4 is fixed.

  FIG. 5 shows a joint structure between the upper edge portion of the first extending portion 13 of the module plate 4 and the lower edge portion 2B of the window hole 7 to which the glass 30 in the outer panel 2 is attached. A stud bolt 29 is provided on the edge 2B, and a nut 29A is screwed and tightened to the stud bolt 29, whereby the upper edge of the first extending portion 13 of the module plate 4 is joined to the edge 2B. .

  FIG. 3 is a perspective view of the inner panel 3 as viewed from the outside of the vehicle after the outer panel 2, the inner panel 3, and the module plate 4 are combined as described above. The outer panel 2 is indicated by a two-dot chain line. Yes. The module plate 4 is disposed at a position corresponding to the substantially lower half of the opening 11 that is largely formed in the inner panel 3 leaving only the peripheral edge 10, and the module plate 4 is disposed on the outer panel 2. It does not protrude from substantially the upper half of the opening 11 facing the window hole 7. Further, the module plate 4 is arranged and fixed at predetermined positions on the inner panel 3 and the outer panel 2 in this way, so that the key cylinder 17 and the wiper motor 18 of the tailgate component 5 attached to the module plate 4 are provided. The outer handle 19 and the door lock 20 are disposed at predetermined positions on the tailgate 1 including the outer panel 2, the inner panel 3, the module plate 4, and the like.

  As shown in FIG. 3, the arrangement positions of these tailgate components 5 are positions where the key cylinder 17, the wiper motor 18, and the outer handle 19 face the opening 11 of the inner panel 3. The lock 20 is a position corresponding to the bulging portion 12 formed on the lower edge portion 10 </ b> A of the inner panel 3. When the module plate 4 is joined to the inner panel 3 and the outer panel 2, the coupler 26 at the end of the harness 25 shown in FIG. It is connected to a coupler of a connection harness that is wired in advance on the surface.

  In addition, a hole or an opening is formed in the shielding portion 9 below the opening 11 in the outer panel 2 in a positional relationship corresponding to the arrangement positional relationship of the key cylinder 17, the wiper motor 18, and the outer handle 19. When the module plate 4 is positioned and arranged at predetermined positions on the inner panel 3 and the outer panel 2, the key cylinder 17, the wiper motor 18 and the outer handle 19 are exposed to the outside of the vehicle facing these holes and openings. It has become.

  After the module plate 4 is coupled to the inner panel 3 and the outer panel 2 as described above, the work of attaching the lining 6 shown in FIG. 1 to the inner surface of the module plate 4 and the inner surface of the inner panel 3 is performed. Do. This mounting operation is performed by inserting and locking the clip 27 provided on the lining 6 in a locking hole formed in the inner panel 3 and the module plate 4. When this lining 6 is attached, as shown in FIG. 5, the upper edge portion of the first extending portion 13 of the module plate 4 and the outer portion of the lining 6 are bent by the upper portion 6A of the lining 6 that is bent to the outside of the vehicle. The joint part with the edge part 2B of the panel 2 is hidden.

  Further, the lining 6 has a substantially rectangular shape having an area larger than the substantially lower half of the opening 11 of the inner panel 3 in which the module plate 4 is disposed. For this reason, when the lining 6 is attached to a predetermined position, the vehicle On the inside, the entire module plate 4 is covered and the substantially lower half of the opening 11 is hidden.

  According to the present embodiment described above, the inner panel 3 that is a member constituting the tailgate 1 has a frame shape in which a large opening 11 is formed leaving only the peripheral edge 10. Since the upper and lower openings are not partitioned by the partition portion, the weight of the inner panel 3 can be reduced by the amount of the partition portion as compared to the inner panel provided with the partition portion. As a result, the overall weight of the tailgate 1 is reduced, which can contribute to the weight reduction of the vehicle to which the tailgate 1 is attached.

  Further, the tailgate component 5 is attached to the module plate 4, and the module plate 4 is coupled to the inner panel 3 and the outer panel 2. The operation of arranging the parts 5 can be easily performed in a short time.

  Further, the module plate 4 has a substantially T-shape composed of a first extending portion 13 extending in the left-right direction and a second extending portion 14 extending downward from the approximate center of the first extending portion 13. Compared to the rectangular module plate, the weight of the module plate 4 is also reduced, so that the overall weight of the tailgate 1 can be further reduced.

  Further, the substantially T-shaped module plate 4 has both end portions of the first extending portion 13 joined to the left and right edge portions 10B and 10C of the inner panel 3, and the lower end portion of the second extending portion 14 is below the inner panel 3. Since it is joined to the edge portion 10A, the module plate 4 is sufficiently utilized as a reinforcing member for the tailgate 1, and the strength of the tailgate 1 can be increased.

  Further, by making the module plate 4 substantially T-shaped, the mounting positions of the key cylinder 17, the wiper motor 18, the outer handle 19, and the door lock 20 that must be disposed on the tailgate 1 are indicated on the module plate 4. The location corresponding to the function of the tailgate component can be secured, and the wiring location of the harness 25 and the location of the rods 23 and 24 shown in FIG.

  Further, since the module plate 4 has a three-dimensional shape including two ribs 15 having rising amounts in the vehicle interior and exterior directions, the strength of the module plate 4 itself can be increased, and the tailgate 1 can be reinforced. By improving the strength of the module plate 4 which is also a member, the overall strength of the tailgate 1 is increased.

  In particular, these two ribs 15 extend from the lower part of the first extension part 13 to the left side part of the second extension part 14 and from the lower part of the first extension part 13 to the right side part of the second extension part 14. Since the ribs 15 are continuously formed over the first extending portion 13 and the second extending portion 14 that are continuous or substantially orthogonal to each other, the reinforcement of the tailgate 1 by the module plate 4 is performed. This can be done for two dimensions of the spreading surface of the tailgate 1.

  The cross-sectional shape of the edge 10 of the inner panel 3 is a hat shape in which a hat-shaped portion 28 is formed, and the cross-sectional shape of the joint portion of the outer panel 2, the inner panel 3 and the module plate 4 is outside the vehicle. The end of the outer panel 3 is joined to the outer surface of the edge 10 of the inner panel 3 which is a hat-shaped portion 28 that opens toward the end, and the end of the module plate 4 is fixed to the inner surface of the vehicle. Since the box has a cross-sectional shape, these joints have high strength, and as a result, the strength of the tailgate 1 as a whole can be further improved.

  Further, since the outer handle 19 used when opening and closing the tailgate 1 is attached to the module plate 4 via the brackets 21 and 22 and is not attached to the outer panel 2, an operating force applied to the outer handle 19 can be reduced. It does not act directly on the outer panel 2 but acts on the module plate 4 which is also a reinforcing material of the tailgate 1 via the brackets 21 and 22. For this reason, problems such as partial deformation of the outer panel 2 caused by the operating force applied to the outer handle 19 can be solved.

  FIG. 6 shows an inner panel 33 according to another embodiment. The inner panel 33 is made of a tailored blank formed by joining plate members 33A, 33B, and 33C having different thicknesses at the joining portion 34. In this embodiment, the thickness of the plate material 33A is the largest, then the thickness of the plate material 33B is the largest, and the thickness of the plate material 33C is the smallest. This is an example, and the number of plate members having different thicknesses to be used and the arrangement positions thereof may be arbitrarily set according to functions required for the inner panel. The means for joining the plate members may be seam welding (including mash seam welding) or spot welding.

  If the inner panel is made of a tailored blank as described above, the inner panel can be formed by effectively combining plate materials having different thicknesses, so that it is possible to simultaneously achieve weight reduction of the inner panel and securing of strength.

  FIG. 7 shows an embodiment in which a license lamp 43 is attached to brackets 41 and 42 for attaching the outer handle 19 to the module plate 4. Of the brackets 41 and 42, as shown in FIG. 8 showing the bracket 42, the brackets 41 and 42 are formed with holes 45 for inserting the lower portions of the license lamps 43. As shown in FIG. The license lamp 43 is attached to the brackets 41 and 42 by connecting the flange portion 43A of the license lamp 43 into which the brackets 41 and 42 are connected to the brackets 41 and 42 with bolts 44.

  According to this embodiment, the brackets 41 and 42 for attaching the outer handle also serve as brackets for attaching the license lamp 43. Therefore, the number of parts used for producing the tailgate 1 can be reduced, and the number of parts can be reduced. As a result, the weight of the tailgate can be reduced.

  FIG. 9 shows a tailgate 101 for a four-wheel vehicle according to an embodiment different from the tailgate shown in FIG. The tailgate 101 is attached to the vehicle body 102 by an upper hinge 103 and can be opened and closed up and down around the hinge 103. Further, a wiper device 105 for cleaning the glass 104 fitted in the window hole 101A is attached to the tailgate 101, and the base end portion of the wiper arm 105B is coupled to the swing shaft 105A of the wiper device 105. Has been.

  FIG. 10 shows an exploded view of the tailgate 101. The tailgate 101 includes an outer panel 110 on the outer side of the vehicle, an inner panel 111 on the inner side of the vehicle, a reinforcing member 112 whose left and right ends are joined to the inner surface of the inner panel 111, and an inner side of the vehicle than the reinforcing member 112. A lining 113 disposed on the inner panel 111 is formed as a main member, and other members for the tailgate include a door lock attaching reinforcing member 114 attached to the inner panel 111. Also, what is assembled to the tailgate 101 as a door part includes a wiper motor 115 of the wiper device 105, an outer handle 116, a key cylinder 117, and a door lock 118. Are a harness 119 extending from the vehicle body 102 side to the wiper motor 115, a harness 120 extending from the vehicle body 102 side to the door lock 118, and a door lock manual operation member 121 spanned between the outer handle 116 and the door lock 118. A door lock key operating rod 122 spanned between the key cylinder 117 and the door lock 118 is incorporated, and harnesses wired to the vehicle body 102 are provided at the ends of the harnesses 119 and 120 on the vehicle body 102 side. A coupler 123 connected to is provided.

  The outer panel 110, the inner panel 111, the reinforcing member 112, and the door lock mounting reinforcing member 114 are sheet metal press products, and the lining 113 is a synthetic resin product.

  The outer panel 110 shown in FIG. 11 has a recess 110B for attaching a license plate below the window hole 110A into which the glass 104 shown in FIG. 9 is fitted. An outer handle is formed on the upper side of the recess 110B. 116, holes 110C and 110D for exposing the key cylinder 117 from the outer panel 110 are provided, and the swing shaft 105A of the wiper device 105 shown in FIG. 9 is disposed between the window hole 110A and the recess 110B. A hole 110E for exposing from the panel 110 is formed.

  The overall size and shape of the inner panel 111 shown in FIG. 12 is substantially the same as that of the outer panel 110, but this inner panel 111 is only for the peripheral edge 130, Since the large opening 131 is formed in the inner panel 111, the inner panel 111 has a frame shape as a whole. The edge portion 130 includes an upper edge portion 130A, left and right side edge portions 130B and 130C, and a lower edge portion 130D. The lower edge portion 130D is formed with a recessed portion 132 that is recessed toward the inside of the vehicle. The lower surface of the portion 132 is a horizontal or substantially horizontal door lock mounting seat surface 132A. The seat surface 132A protrudes and retracts from the door lock 118 to lock the tailgate 101 with respect to the vehicle body 102 and unlock it. An opening 133 through which the lock member can pass is provided. An opening 134 is also formed in the inclined upper surface 132B of the recess 132, and a seat reinforced by the door lock mounting reinforcing member 114 by inserting the door lock 118 into the opening 134 from above. A door lock 118 can be installed and attached to the surface 132A.

  Further, the left and right side edge portions 130B and 130C and the lower edge portion 130D of the edge portion 130 are continuous with the side edge portions 130B and 130C and the lower edge portion 130D, and are raised portions 135 that protrude to the outside of the vehicle. The raised portion 135 is formed so as to form a predetermined interval between the outer panel 110 and the inner panel 111 disposed on the vehicle outer side than the raised portion 135, and to ensure a predetermined thickness of the tailgate 101. belongs to. Of the raised portions 135, the portions formed on the left and right side edge portions 130B and 130C are raised portions 135A having a large raised amount, and are sectional views taken along lines S16-S16 in FIG. 14 and FIG. As shown in FIG. 16 in which the outer panel 110 when coupled to the inner panel 111 is also shown, a flat surface 135B is provided at the base end portion of the upright portion 135A. The flat surface 135B is perpendicular or substantially perpendicular to the opening and closing direction of the tailgate 101 centered on the hinge 103 of FIG. 9, and the upright portion 135A is parallel or substantially parallel to the opening and closing direction of the tailgate 101. It is parallel.

  Further, as shown in FIG. 16, the edge 130 of the inner panel 111 is formed with a hat-shaped portion 136 having a hat-shaped cross section and opening toward the outside of the vehicle. As shown in FIG. 12, the portion 136 has a width dimension and a depth dimension that are different in each part of the inner panel 111, but is continuously formed over the entire circumference of the inner panel 111. As shown in FIG. 16, when the inner panel 111 and the outer outer panel 110 are joined together, the opening side of the hat-shaped portion 136 is closed by the outer panel 110, and thus the box shape whose cross section becomes a box shape. The portion 137 is formed over the entire circumference of the tailgate 101.

  As shown in FIG. 12, holes 140 to 142 are formed at appropriate positions on the edge 130 of the inner panel 111. These holes 140 to 142 connect the harnesses 119 and 120 and the door lock manual operation member 121. Used for wiring to the inner panel 111.

  Moreover, the inner panel 111 is formed by the components 144 to 149 joined by the joint part 143 by laser welding. That is, the inner panel 111 joins a total of six blank materials, which are the materials of the components 144 to 149, by laser welding performed by abutting the end portions of the adjacent blank materials, thereby forming a tailored blank. Thereafter, this tailored blank is formed by press molding and punching molding with a press machine.

  In order to manufacture tailored blanks by joining a total of 6 blank materials by laser welding, each blank material is press-molded and punched in advance with a press machine, and then these blank materials are You may carry out by joining by laser welding.

  Among the components 144 to 149, the components 145 and 146 form a hinge mounting location to which the hinge 103 of FIG. 9 is attached, and the remaining components 144 and 147 to 149 form locations other than the hinge mounting location. Yes. The blanks of the constituent elements 145 and 146 are thicker than the blanks of the constituent elements 144 and 147 to 149, and the thickness thereof is, for example, 1.4 mm. The blanks of the constituent elements 144 and 147 to 149 The plate thickness is, for example, 0.6 mm. For this reason, the tailgate 101 is formed using two types of blank materials, and the blank material at the hinge attachment location is thicker than the blank material at locations other than the hinge attachment location, and the components Parts other than the part 144, except for the hinge mounting part, are formed by joining a total of three blanks having the same plate thickness. And since this location consists of the components 147 to 149, it has a bent shape.

  The overall shape of the reinforcing member 112 shown in FIG. 13 is an elongated shape that is long in the left-right direction. For this reason, the module plate 4 of the embodiment shown in FIG. 2 includes a first extending portion 13 extending in the left-right direction, and a second extending portion 14 extending downward from substantially the center of the first extending portion 13. In contrast, the reinforcing member 112 of this embodiment includes only a portion corresponding to the first extending portion, and is further reduced in weight than the module plate 4.

  The reinforcing member 112 is a bending material including two flanges 151 and 152 that are bent outward from the upper and lower ends of the web 150 whose longitudinal direction is the width direction. With the two flanges 151 and 152 formed over the entire length of the web 150, the reinforcing member 112 has a substantially C-shaped cross section, in other words, a channel shape. Lips 151A and 152A are provided at the tips of the flanges 151 and 152, respectively, and the left and right ends of the reinforcing member 112 are of the raised portion 135 of the inner panel 111 shown in FIGS. A joining piece 153 to be joined to the flat surface 135B is provided.

  A hole 154 for inserting the wiper motor 115 attached to the reinforcing member 112 from the inside of the vehicle is formed in the web 150, and a bracket 115 </ b> A (see FIGS. 17 and 19) of the wiper motor 115 is adjacent to the hole 154. A coupling seat surface 155 for coupling with bolts and nuts is formed. As shown in FIG. 17, the wiper motor 115 is provided with the swing shaft 105A of the wiper device 105 shown in FIG. Further, as shown in FIG. 13, an extension piece 156 extends downward from the lower flange 152 of the reinforcing member 112, and the extension piece 156 to which the outer handle 116 and the key cylinder 117 shown in FIG. A hole 157 for inserting the door lock manual operation member 121 connected to the outer handle 116 and a hole 158 for inserting the key cylinder 117 are formed.

  The manufacturing operation of the tailgate 101 is performed as follows.

  First, the door lock attachment reinforcing member 114 is attached to the door lock attachment seat surface 132A of the inner panel 111 by spot welding. As shown in FIG. 14, an opening 159 is formed in the door lock mounting reinforcing member 114, and the opening 159 communicates with the opening 133 shown in FIG. 12. When the door lock 118 is attached to the seating surface 132 </ b> A reinforced by the member 114, the lock member for protruding and retracting from the door lock 118 to lock the tailgate 101 with respect to the vehicle body 102 and releasing the lock is the opening 133. 159 can be penetrated.

  After that, the work of laying the elongated reinforcing member 112 elongated in the left-right direction on the left and right side edges 130B and 130C of the edge 130 of the inner panel 111 from the inside of the vehicle is performed. This erection work is shown in FIG. As described above, the upper and lower flanges 151 and 152 of the reinforcing member 112 are directed to the outside of the vehicle, and the joining pieces 153 at the left and right ends of the reinforcing member 112 are applied to the flat surface 135B of the raised portion 135 of the inner panel 111 from the inside of the vehicle. The joining piece 153 and the flat surface 135B are joined by spot welding. The position of the reinforcing member 112 in the vertical direction of the inner panel 111 at this time is such that the position of the flange 151 on the upper side of the reinforcing member 112 is slightly below the lower side of the window hole 110A of the outer panel 110 shown in FIG. Position. This state is shown in FIG.

  In FIG. 16 showing the outer panel 110 and the inner panel 111 after being joined, the joining piece 153 of the reinforcing member 112 and the flat surface 135B of the raised portion 135 of the inner panel 111 are joined by the welded portion 160 by spot welding. The state is shown.

  Next, an operation of joining the outer panel 110 and the inner panel 111 is performed. As shown in FIG. 16, this joining operation is performed by performing a hemming process in which the outer edge 110 </ b> F of the outer panel 110 is folded and crimped to the outer edge 111 </ b> A to which the adhesive has been applied in advance. Thereafter, the outer edge portions 110F and 111A of the outer panel 110 and the inner panel 111 are joined together by spot welding, or the outer edge portion 110F of the outer panel 110 is folded back and the inner panel 111 is pre-cured in advance. Hemming is performed by pressure bonding to the outer edge 111A to which the adhesive is applied, and then the thermosetting adhesive is heated and cured. This operation is performed by the outer panel 110 and the inner panel 111. It is performed for the entire circumference. Further, a sealer 161 is applied to an end edge portion of the inner panel 111 on the opening 131 side, that is, the inner end edge portion 111B, so that the inner end edge portion 111B does not directly contact the outer panel 110. . The sealer 161 includes a portion corresponding to the portion into which the glass 104 shown in FIG. 9 is fitted, and a portion corresponding to the lip 151A of the reinforcing member 112 shown in FIG. 14 in the entire circumference of the inner edge 111B. It is applied discontinuously on the parts other than.

  A portion of the inner edge 111B of the inner panel 111 where the sealer 161 is not applied is spot welded to the outer panel 110.

  As described above, when the outer panel 110 and the inner panel 111 are joined, the opening side of the hat-shaped portion 136 of the inner panel 111 shown in FIG. Reference numeral 136 denotes a box-shaped portion 137.

  14 is a cross-sectional view taken along the line S15-S15 in FIG. 14 and also shows the outer panel 110 coupled to the inner panel 111. As shown in FIG. 15, the lip 151A of the flange 151 on the upper side of the reinforcing member 112 and the outer The edge part 110G which forms the lower side part of the window hole 110A in the panel 110 is joined by the welding part 162 by spot welding. A sealer 163 is applied continuously or discontinuously over the entire length of the lip 152A to the lip 152A of the flange 152 on the lower side of the reinforcing member 112, and the lip 152A does not directly contact the outer panel 110 by this sealer-163. Like that.

  With the above operation, the outer panel 110, the inner panel 111, and the reinforcing member 112 are combined and integrated. Thereafter, the outer panel 110, the inner panel 111, and the reinforcing member 112 are painted to finish each surface. This painting work includes electrodeposition coating by immersing the outer panel 110, the inner panel 111, and the reinforcing member 112 in an electrodeposition coating solution contained in an electrodeposition coating tank. By this electrodeposition coating, the surfaces of the outer panel 110, the inner panel 111, and the reinforcing member 112 including the welded portions 160 and 162 are painted, and the inside of the box-shaped portion 137 shown in FIG. Since the sealer 161 is discontinuously applied to the edge portion 111B, the electrodeposition coating liquid surely enters, and the inner surface of the box-shaped portion 137 is also coated.

  Thereafter, the assembly work of the wiper motor 115, the outer handle 116, the key cylinder 117, and the door lock 118, which are door components, is performed. The wiper motor 115 is assembled by inserting the wiper motor 115 into the hole 154 of the reinforcing member 112 shown in FIG. 13 from the inside of the vehicle, and the vehicle inner surface of the coupling seating surface 155 of the reinforcing member 112 shown in FIG. The bracket 115A of the wiper motor 115 is connected by bolts and nuts. The assembly operation of the outer handle 116 is performed by connecting the outer handle 116 with a bolt and a nut at the position of the extension piece 156 in which the hole 157 of the reinforcing member 112 is formed. The assembly operation of the key cylinder 117 is also performed. The key cylinder 117 is inserted into the hole 158 formed in the extension piece 156 of the reinforcing member 112, and the bracket 117A (see FIG. 19) of the key cylinder 117 is coupled to the extension piece 156 with bolts and nuts.

  Further, the door lock 118 is assembled by inserting the door lock 118 from above into the opening 134 formed in the inclined upper surface 132B of the recess 132 of the inner panel 111 shown in FIG. 118 is installed on a seating surface 132A reinforced by the door lock mounting reinforcing member 114, and the door lock 118 is connected to the seating surface 132A by bolts and nuts.

  When the above operations are completed, the outer handle 116 is exposed from the hole 110C of the outer panel 110 shown in FIG. 11, the key cylinder 117 is exposed from the hole 110D, and the swing shaft 105A of the wiper motor 115 is exposed from the hole 110E. is doing.

  Next, the harnesses 119 and 120 are inserted into the hole 140 of the inner panel 111 shown in FIG. 12 from the inside of the vehicle, and the harnesses 119 and 120 are passed through the inside of the box-shaped portion 137. 12 is projected from the hole 141 of the inner panel 111 and connected to the wiper motor 115, and the end of the harness 120 is connected to the door lock 118 by the operation from the opening 134 of the inner panel 111. Further, the door lock manual operation member 121 is passed through the hole 142 of the inner panel 111 shown in FIG. 12 and the hole 157 of the reinforcing member 112 shown in FIG. The door lock key operation rod 122 is passed between the key cylinder 117 and the door lock 118 by passing the door lock key operation rod 122 through the opening 134 of the inner panel 111.

  FIG. 17 shows a state in which this work is completed. In FIG. 17, the outer panel 110 is omitted.

  Similarly, as shown in FIG. 18 in which the outer panel 110 is omitted, the hole 142 may be eliminated by passing the door lock manual operation member 121 through the hole 141.

  After the above work, the lining 113 shown in FIG. 10 is attached to the inner surface of the reinforcing member 112 and the inner panel 111, and the locking member 170 such as a clip provided on the lining 113 is attached to the reinforcing member 112 and the inner panel 111. The operation of attaching the glass 104 to the locked portion by the formed hole or the like is performed, and the operation of fitting the glass 104 into the window hole 101A shown in FIG. 9 is performed. By the attaching operation of the lining 113, the reinforcing member 112, the wiper motor 115, and the like are hidden from the inside of the vehicle.

  Also in the embodiment described above, the inner panel 111 which is a main part of the tailgate 101 has a frame shape that includes only the peripheral edge 130, and thus the weight is reduced. The overall weight of 101 can be reduced.

  Further, since the reinforcing member 112 is installed between the left and right side edge portions 130B and 130C of the edge portion 130 of the inner panel 111, the inner panel 111 is reinforced by the reinforcing member 112, and the reinforcing member 112 is coupled. The strength of the inner panel 111 later is ensured. Since the reinforcing member 112 has an elongated shape that is long in the left-right direction and does not have a large area, the weight of the reinforcing member 112 is light. Therefore, the inner panel 111 after the reinforcing member 112 is joined is light. The weight and the total weight of the tailgate 101 do not become so heavy.

  Further, since the reinforcing member 112 is not a flat plate-like member, but is a bending material having the web 150 and flanges 151 and 152 bent from the web 150, the strength of the reinforcing member 112 itself is increased. Therefore, the strength of the inner panel 111 and the strength of the tailgate 101 in a state where the reinforcing member 112 is coupled can be increased.

  In particular, in the reinforcing member 112 according to the present embodiment, two flanges 151 and 152 are bent from the upper and lower ends of the web 150 with the width direction being the vertical direction, and these flanges 151 and 152 are in the length direction of the web 150. Unlike the case where the front shape of the reinforcing member is a T-shape or the like, the lower flange 152 is interrupted in the middle of the web 150 in the length direction. Not. Therefore, the strength of the reinforcing member 112 is assured by the upper and lower flanges 151 and 152 as they are, and the strength of the inner panel 111 and the strength of the tailgate 101 after the reinforcing member 112 is coupled can be sufficiently increased.

  The reinforcing member 112 is coupled to the inner panel 111 with the opening having a substantially C-shaped cross section facing the outside of the vehicle, in other words, with the upper and lower flanges 151 and 152 facing the outside of the vehicle. Is housed in a space within the thickness of the tailgate 101 secured by the raised portion 135 formed in the inner panel 111, so that the strength of the reinforcing member 112 is sufficiently increased to the reinforcing member 112. Even if these flanges 151 and 152 are provided, the thickness dimension of the tailgate 101 can be suppressed to a predetermined dimension.

  In addition, a hat-shaped portion 136 is formed on the edge 130 of the inner panel 111 over the entire inner panel, and a box-shaped portion 137 is formed over the entire periphery of the door by coupling the inner panel 111 and the outer panel 110. Therefore, the overall strength of the tailgate 101 can be further improved together with the reinforcing member 112 having a substantially C-shaped cross section.

  Further, the inner panel 111 is made of a tailored blank formed by joining blank materials having different thicknesses, and only the blank material at the hinge mounting location that requires higher strength than other locations is made thicker. Therefore, both the strength required for the inner panel 111 and the weight reduction can be achieved at the same time.

  Further, since the portions other than the hinge mounting portion excluding the component 144 are formed by joining three blanks having the same thickness, the inner panel 111 occupies a large area and has a bent shape. Unlike the case where this portion is formed of a single large area blank material, when the inner panel 111 is formed by a tailored blank made of a blank material for each of the components 144 to 149, the locations of the components 147 to 149 The blank material having the same area and shape as the constituent elements 147 to 149 or a blank material having a slightly larger area and shape than the three blank materials can be used to improve the material yield and manufacture the inner panel 111. .

  In the present embodiment, after the outer panel 110, the inner panel 111, and the reinforcing member 112 are joined and integrated by welding, and before the door parts such as the door lock 118 are assembled, the outer panel 110, the inner panel Since the painting work for the panel 111 and the reinforcing member 112 is performed, it is not necessary to individually perform the painting work for the outer panel 110, the inner panel 111, and the reinforcing member 112, and thus the workability of the painting work is improved. . Also, the welded portion 160 between the inner panel 111 and the reinforcing member 112 and the welded portion 162 between the outer panel 110 and the reinforcing member 112 can be coated simultaneously with the outer panel 110, the inner panel 111, and the reinforcing member 112.

  Furthermore, since the wiper motor 115, the outer handle 116, and the key cylinder 117, which are door components, are attached to the reinforcing member 112, the reinforcing member 112 is also used as an attaching member for attaching them. There is no need to prepare special attachment members for the handle 116 and the key cylinder 117.

  19 to 21 show an embodiment in which the tailgate 101 is manufactured in a work order different from the manufacturing work described above.

  In the manufacturing work of this embodiment, after the door lock mounting reinforcing member 114 is coupled to the door lock mounting seating surface 132A of the inner panel 111 by spot welding, the inner panel 111 and the outer panel 110 are coupled by the aforementioned hemming or the like. To do. Thereafter, the outer panel 110 and the inner panel 111 combined and integrated are subjected to a painting operation, and then the above-described manufacturing operation is performed on the seat surface 132A reinforced by the door lock mounting reinforcing member 114 of the inner panel 111. The door lock 118 is attached by the same operation.

  As shown in FIG. 19, as shown in FIG. 19, the wiper motor 115, the outer handle 116, and the key cylinder 117 are attached to the reinforcing member 112. The wiper motor 115, the outer handle 116, and the key cylinder 117 are set as module members provided in advance. The reinforcing member 112 is formed of a material that has been surface-treated in advance, that is, for example, a galvanized steel plate or a pre-painted steel plate.

  Next, as shown in FIG. 20, the end edge portion 110 </ b> G and the reinforcing member are formed by the stud bolt 180 and the nut 181 that are joined to the end edge portion 110 </ b> G forming the lower side portion of the window hole 110 </ b> A in the outer panel 110. As shown in FIG. 21, the flat surface is joined by the nut 182 and the bolt 183 joined to the flat surface 135B of the edge portion 130 of the inner panel 111, as shown in FIG. As shown in FIG. 21, the work of joining the joining piece 153 of the reinforcing member 112 to 135B is performed, and further, as shown in FIG. 20, the sealer 163 is applied to the lip 152A of the flange 152 on the lower side of the reinforcing member 112. Next, the work of applying the sealer 161 to the inner edge 111B of the inner panel 111 on the opening 131 side is performed. Cormorant. As a result, the work of installing the reinforcing member 112 between the left and right side edge portions 130B and 130C in the edge portion 130 of the inner panel 111 while being joined to the outer panel 110 is performed.

  As described above, the outer panel 110, the inner panel 111, and the reinforcing member 112 are combined and integrated, and the assembly work of the wiper motor 115, the outer handle 116, the key cylinder 117, and the door lock 118 is completed.

  Thereafter, as in the manufacturing work according to the above-described embodiment, the wiring work of the harnesses 119 and 120, the bridging work of the door lock manual operation member 121 and the door lock key operation rod 122, the lining 113 is replaced with the reinforcing member 112 or The operation of attaching the inner panel 111 to the inner surface of the vehicle and the operation of fitting the glass 104 into the window hole 101A are performed.

  According to the tailgate manufacturing operation according to this embodiment, since the outer panel 110 and the inner panel 111 are coated after they are combined and integrated, it is not necessary to paint the outer panel 110 and the inner panel 111 individually. The workability of the painting work is improved accordingly.

  Further, the reinforcing member 112 includes a wiper motor 115 and an outer handle 116 which are door components before the reinforcing member 112 is installed between the left and right side edge portions 130B and 130C of the edge portion 130 of the inner panel 111. Since the key cylinder 117 is attached in advance, this attachment work can be performed in a work space that is open to the surroundings, thereby improving workability.

  Further, since the reinforcing member 112 is a module member to which these door parts are attached in advance, when the reinforcing member 112 is joined to the inner panel 111, the assembling work for these door parts is simultaneously performed. As a result, this assembling work can be simplified.

  Next, an embodiment using the inner panel 211 shown in FIGS. 22 to 24 will be described.

  As shown in FIG. 22, the edge portion 230 of the inner panel 211 formed in the frame shape according to this embodiment also includes an upper edge portion 230A, left and right side edge portions 230B and 230C, and a lower edge portion 230D. The raised portion 235 has raised portions 235A at the left and right side edge portions 230B, 230C, but there is no portion corresponding to the flat surface 135B shown in FIGS. Further, as shown in FIG. 23, which is a cross-sectional view taken along line S <b> 23-S <b> 23 of FIG. 22 and also shows the outer panel 110 coupled to the inner panel 211, the reinforcing member 212 according to this embodiment includes There is no portion corresponding to the joining piece 153 shown in FIGS.

  Further, as shown in FIG. 22, the reinforcing member 212 has a substantially cross-sectional shape C in which two flanges 251 and 252 are bent outward from the upper and lower ends of the web 250 having the longitudinal direction as the width direction, as in the above embodiment. The flanges 251 and 252 are provided with lips 251A and 252A at the tips of the flanges 251 and 252. FIG. 22 is a sectional view taken along line S24-S24 in FIG. 24, a joint piece 253 is formed on the lip 252A along the vehicle inner surface of the upright portion 235A of the inner panel 211. This joint piece 253 is spot welded to the upright portion 235A. Joined at the welded portion 260. Although not shown in the drawing, the lip 251A is also formed with a joining piece along the vehicle inner surface of the upright portion 235A, and this joining piece is also joined to the upright portion 235A by a welded portion 260 by spot welding.

  Therefore, in this embodiment, the left and right end portions of the reinforcing member 212 that is elongated in the left-right direction are parallel or substantially parallel to the opening / closing direction of the tailgate centered on the hinge 103 shown in FIG. The reinforcing member 212 is constructed on the left and right side edge portions 230B and 230C of the edge portion 230 of the inner panel 211 by being joined to the rising portion 235A of the inner panel 211.

  According to this embodiment, the reinforcing member 212 and the inner panel 211 can be joined using the upright portion 235A of the raised portion 235 provided on the inner panel 211 in order to make the tailgate have a predetermined thickness dimension.

  Further, since the inner panel 211 does not have a portion corresponding to the flat surface 135B shown in FIGS. 12, 14, and 16, both the flat surface 135B and the upright portion 135A are provided on the inner panel as shown in FIG. Unlike the case where the inner panel 211 is formed, the inner panel 211 can be formed into a gentle shape with no or few places where the shape changes rapidly. As a result, the location where the impact load when the tailgate is opened / closed around the hinge 103 acts as a concentrated stress can be eliminated or reduced, which is an effective load countermeasure.

  As described above, joining the left and right ends of the reinforcing member 212 to a portion of the inner panel 211 that is parallel or substantially parallel to the tailgate opening / closing direction is a tailing operation in the two types of embodiments described above. The present invention can also be applied to manufacturing a gate. When the tailgate is manufactured in the manufacturing operation according to the embodiment of FIGS. 19 to 21 in which the reinforcing member 212 is a module member to which door parts are attached in advance, FIG. Instead of the welded portion 260, the joining piece of the reinforcing member 212 is joined to the upright portion 235A by using a nut previously joined to the upright portion 235A of the inner panel 211 and a bolt screwed into the nut.

  INDUSTRIAL APPLICABILITY The vehicle door and the manufacturing method thereof according to the present invention can be used for manufacturing a vehicle tailgate and a side door using an outer panel, an inner panel, and a reinforcing member.

It is a disassembled perspective view which shows the tailgate which is a vehicle door which concerns on one Embodiment of this invention. It is a perspective view which shows the state by which the components for doors were attached to the module plate used as the reinforcement member shown by FIG. It is the perspective view which looked at the inner panel with which the module plate was couple | bonded from the vehicle outer side. It is sectional drawing which shows the junction part of the edge part of an outer panel, the hat-shaped part of the edge part of an inner panel, and the edge part of a module plate. It is sectional drawing which shows the joining structure of the upper edge part of a module plate, and the lower edge part of the window hole to which the glass in an outer panel is attached. It is a perspective view which shows the inner panel in embodiment which made the inner panel the product made from tailored blanks. It is sectional drawing which shows the case where a license lamp is attached to a bracket in order to attach an outer handle to a module plate. It is a perspective view which shows the isolation | separation state of the bracket and license lamp of FIG. FIG. 6 is a rear perspective view of a four-wheeled vehicle including a tailgate that is a vehicle door according to another embodiment of the present invention. FIG. 10 is an exploded perspective view of the tailgate of FIG. 9. It is a whole perspective view of the outer panel of FIG. It is a whole perspective view of the inner panel of FIG. It is a whole perspective view of the reinforcement member of FIG. It is the front view which looked at the time of constructing a reinforcement member between the right and left side edge parts in the edge part of an inner panel from the vehicle outside, and is a figure which abbreviate | omitted the outer panel. It is the S15-S15 sectional view taken on the line of FIG. 14, Comprising: It is the figure shown including the outer panel. It is the S16-S16 sectional view taken on the line of FIG. 14, Comprising: It is the figure shown including the outer panel. FIG. 15 is a diagram showing the state after the assembly work of door locks and key cylinders, which are door components, is completed from the state of FIG. 14 and the wiring of harnesses is also completed, and the outer panel is omitted. . It is a figure similar to FIG. 17 which shows another embodiment which varied the wiring of harnesses. It is a figure which shows embodiment of the tailgate manufacturing method which makes a reinforcement member the module member which attached the wiper motor etc. which are parts for doors beforehand, Comprising: It is a perspective view which shows a reinforcement member when a wiper motor etc. are attached. is there. It is a figure similar to FIG. 15 in embodiment of FIG. It is a figure similar to FIG. 16 in embodiment of FIG. FIG. 15 is a view similar to FIG. 14 showing an embodiment in which the left and right ends of the reinforcing member are joined to a portion of the inner panel that is parallel or substantially parallel to the tailgate opening / closing direction. It is the S23-S23 sectional view taken on the line of FIG. 22, Comprising: It is the figure shown including the outer panel. It is the S24-S24 sectional view taken on the line of FIG. 22, Comprising: It is the figure shown including the outer panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tailgate which is a vehicle door 2 Outer panel 3 Inner panel 4 Module plate which is a reinforcement member 5 Tailgate parts which are door parts 10 Edge part 11 Opening part 13 1st extension part 14 2nd extension part 15 rib

Claims (16)

In a vehicle door formed including an outer panel on the vehicle outer side and an inner panel on the vehicle inner side coupled to the outer panel,
The inner panel has a frame shape in which an opening is formed leaving only the edge of the entire circumference, and a first extending portion extending in the left-right direction, and a left-right direction of the first extending portion A T-shaped or substantially T-shaped reinforcing member comprising a center or a second extending portion extending downward from substantially the center is provided, and respective end portions in the length direction of the first extending portion are provided on the inner panel. A vehicle door, wherein the vehicle door is joined to left and right edge portions, and a lower end portion of the second extending portion is joined to a lower edge portion of the inner panel.   2. The vehicle door according to claim 1, wherein ribs having a rising amount toward the outside of the vehicle are formed at a lower portion of the first extension portion and left and right side portions of the second extension portion, and the first extension portion is provided. The lower rib of the protruding portion and the left rib of the second extending portion are continuous, and the lower rib of the first extending portion and the right rib of the second extending portion are continuous. A vehicle door characterized in that   2. The vehicle door according to claim 1, wherein a door component is attached to the reinforcing member.   The vehicle door according to claim 3, wherein the door component is attached to the reinforcing member before the reinforcing member is attached to the inner panel. A vehicle door characterized in that it is a module member that has been attached.   4. The vehicle door according to claim 3, wherein a key cylinder and a wiper motor are attached to the first extension portion, and an outer handle is attached to a connection portion between the first extension portion and the second extension portion. A door for a vehicle, wherein a door lock is attached to the second extending portion.   2. The vehicle door according to claim 1, wherein a cross-sectional shape of a joint portion of the outer panel, the inner panel, and the reinforcing member is a hat shape in which the cross-sectional shape is opened toward the vehicle outer side. A box cross-sectional shape in which an end portion of the outer panel is joined to a vehicle outer surface of an edge portion and an end portion of the reinforcing member is joined to a vehicle inner surface of an edge portion of the inner panel. Car door for vehicles.   The vehicle door according to claim 1, wherein an outer handle is attached to the reinforcing member.   8. The vehicle door according to claim 7, wherein the outer handle is attached to the reinforcing member via a bracket, and a license lamp is attached to the bracket.   2. The vehicle door according to claim 1, wherein the portion of the inner panel to which the end portion of the reinforcing member is joined is a portion that is parallel or substantially parallel to the vehicle door opening / closing direction. Characteristic vehicle door.   10. The vehicle door according to claim 9, wherein a portion of the inner panel that is parallel or substantially parallel to the vehicle door opening / closing direction is formed on the inner panel in order to secure a door thickness. A vehicle door characterized by being an upright part.   2. The vehicle door according to claim 1, wherein a hat-shaped portion having a hat-shaped cross section is formed around the entire inner panel at an edge of the inner panel, and the inner panel and the outer panel are coupled to each other. Thus, a box-shaped portion having a box-shaped cross section is formed over the entire periphery of the door.   2. The vehicle door according to claim 1, wherein the inner panel is formed by a tailored blank formed by joining a plurality of blank materials including blank materials having different plate thicknesses.   13. The vehicle door according to claim 12, wherein the tailored blank includes a blank material that forms a hinge mounting location to which a door hinge is mounted and a blank material that forms a location other than the hinge mounting location. A blank for forming a mounting portion has a larger plate thickness than a blank for forming a portion other than the hinge mounting portion.   The vehicle door according to claim 13, wherein at least a part of the portions other than the hinge mounting portion is formed by joining a plurality of blank materials having the same thickness. .   The vehicle door according to claim 14, wherein the portion formed by joining the plurality of blank materials having the same plate thickness is a bent portion.   The vehicle door according to claim 1, wherein the vehicle door is a tailgate.

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