JP5030053B2 - Vehicle door structure - Google Patents

Description

  The present invention relates to a door structure for a vehicle such as an automobile, and more particularly to a vehicle door structure that prevents a door with a sash from being opened during a side collision.

BACKGROUND ART A passenger door for getting on and off an automobile includes an outer panel that constitutes a part of a vehicle outer plate, and an inner panel that is disposed inside the outer panel. In the case of a rear opening door having a hinge at the front, a latch device for maintaining the door in a closed state is provided at the rear end of the door, and a door handle for operating the latch device is provided on the outer panel immediately before the latch device. It is done.
In addition, such a door is provided with a door sash that holds the end of the elevating window glass, and a substantially triangular plate-shaped sheet metal gusset is provided between the lower end of the door sash and the window shoulder of the door body. What is worn is known.

Conventionally, in a door for an automobile, even if the outer panel is made of resin, a handle reinforcement that is a stiffening member of the door handle support portion is attached to the window shoulder portion in order to firmly fix the door handle. What is respectively couple | bonded with the outer lean reinforcement provided and the side impact beam is known (for example, refer patent document 1).
In addition, the lower end of the reinforcement of the window shoulder is extended to fix the door handle of the outer panel for the purpose of preventing poor door handle installation, improving welding workability and preventing the door outer panel from shrinking. The thing fixed to the part is known (for example, refer patent document 2).
Japanese Utility Model Publication No. 63-112131 Japanese Patent Laid-Open No. 10-35285

If the door is deformed and the door handle and the latch come close, for example, when a side collision occurs in the vehicle, the door may be opened. It is required to suppress the amount of deformation at the time.
An object of the present invention is to provide a vehicle door structure in which the strength in the vicinity of the latch means and the door handle is improved without increasing the number of parts.

The present invention solves the above-described problems by the following means.
According to a first aspect of the present invention, there is provided an outer panel that constitutes a part of a vehicle outer plate, an inner panel that is provided on the vehicle interior side of the outer panel, and that forms a space between the outer panel, and an end of the inner panel Latch means for engaging with a striker provided on the vehicle body side, a door handle provided on the outer panel for operating the latch means, a door sash for holding an end portion of the door window glass, and at least the A vehicular door structure comprising: a latch stiffening member attached to the inner panel around the latch means; and a door gusset member provided above the latch means and between the outer panel and the door sash. The door gusset member is fixed to the outer panel, and the latch stiffening member is fixed to the outer panel. Madokata unit has arranged an upper end portion in the vicinity of a vehicle door structure characterized in that the upper end portion is fixed to the Doagasetto member.

According to a second aspect of the present invention, in the vehicle door structure according to the first aspect, the door gusset member and the latch auxiliary member are fixed at a plurality of positions spaced apart in the vertical direction by fixing the door gusset member and the latch stiffening member. A vehicle door structure characterized in that a closed cross-section is formed between a rigid member and a rigid member.
According to a third aspect of the present invention, in the vehicle door structure according to the first or second aspect, a closing surface portion that closes between the inner panel and the door gusset member is provided at the upper end portion of the latch stiffening member. A door structure for a vehicle is provided.
According to a fourth aspect of the present invention, in the vehicle door structure according to any one of the first to third aspects, the lower end portion of the door gusset member is coupled to the door handle. Structure.

According to the present invention, the following effects can be obtained.
(1) By fixing the upper end of the latch stiffening member to the door gusset member, the rear end of the door has a strong structure, and the amount of deformation at the time of a side collision is reduced to suppress relative displacement of the door handle with the latch means. Thus, the door can be prevented from opening.
(2) By forming the closed cross section between the door gusset member and the latch stiffening member, the structure of the door rear end can be further strengthened.
(3) By providing a closed surface part that closes the gap between the inner panel and the door gusset member at the upper end of the latch stiffening member, it prevents rainwater from entering the door and improves the sound insulation of the vehicle. can do.
(4) By connecting the lower end portion of the door gusset member to the door handle, the support rigidity of the door handle can be improved, and the touch at the time of operation can be improved (a firm feeling can be given).

  The present invention aims to provide a vehicle door structure in which the strength in the vicinity of the latch means and the door handle is improved without increasing the number of parts. The lower portion of the door gusset member is joined to the outer panel and the latch phosphorus hose is extended upward. This is solved by joining the door gusset member to form a closed cross section.

Hereinafter, Example 1 of the door structure for vehicles of the present invention is described.
FIG. 1 is a schematic side view of a door to which the vehicle door structure of the first embodiment is applied as viewed from the outside in the vehicle width direction.
FIG. 2 is a perspective view of the portion II in FIG. 1 as viewed from the oblique front side on the vehicle outer side.
FIG. 3 is a transparent perspective view of the portion II in FIG. 1 as viewed from the diagonally rear side inside the vehicle.
FIG. 4 is a schematic cross-sectional view taken along the line IV-IV in FIG.

The door 1 is, for example, a rear door of a passenger car having a pair of front and rear doors on the side surface of the vehicle, and is a rear opening having a hinge at the front end.
The door 1 includes an outer panel 10, an inner panel 20, a sash 30, a door gusset member 40, a latchin hose 50, a door handle 60, and the like.

The outer panel 10 and the inner panel 20 are each formed by, for example, pressing a steel plate.
The outer panel 10 is a part constituting a part of the outer plate of the vehicle. However, in FIG. 2, the outer panel 10 is shown in a transparent state.
The inner panel 20 is disposed to face the inner surface of the outer panel 10 with a space therebetween. As a result, a space portion is formed between the outer panel 10 and the inner panel 20, and a door window glass (not shown) is accommodated in the space portion when the door panel glass is lowered. Etc. are accommodated. An inner trim (not shown) for occupant protection and decoration is mounted on the inner side of the inner panel 20 in the vehicle width direction (vehicle interior side).
Further, the outer panel 10 and the inner panel 20 are joined to each other at the outer peripheral edge portion thereof.

  The sash 30 holds an upper end portion, a front end portion, and a rear end portion in a closed state of the door window glass supported so as to be movable up and down between the outer panel 10 and the inner panel 20. The sash 30 is integrally formed, for example, by roll forming a steel plate, and the lower ends of the front and rear of the vehicle are joined to the front end and the rear end of the window shoulder portion of the door 1, respectively.

The door gusset member 40 includes a door gusset 41 that closes a substantially triangular area surrounded by a rear end portion of the door window glass, a rear portion of the sash 30, a window shoulder portion of the door 1, and
The extension part 42 extended below the door gusset 41 is integrally formed by, for example, pressing a steel plate. The extension part 42 is inserted into the space between the outer panel 10 and the inner panel 20, and the upper part (portion near the door gusset 41) is joined to the outer panel 10 by spot welding. Further, the lower end portion of the extension portion 42 is bent toward the inner panel 20 and is joined by spot welding in a state where the latch phosphorus hose 50 and the inner panel 20 are overlapped.

The latching hose 50 is provided at the rear end portion of the door 1, and latch means for engaging with a striker (not shown) provided at a door opening of a vehicle body (not shown) is fixed. It is a member which aims at.
The latchin hose 50 includes a rear wall portion 51 disposed facing the rear side of the door 1, a side wall portion 52 projecting from the rear wall portion 51 toward the vehicle front side, and an extension portion extending upward from the side wall portion 52. 53, the closing surface portion 54 provided on the upper end portion of the extension portion 53 is integrally formed by, for example, pressing a steel plate.

The rear wall portion 51 is disposed along the inner surface of the rear end surface portion disposed facing the vehicle rear side of the inner panel 20, and is joined to the rear end surface portion by spot welding.
The side wall portion 52 is a substantially flat portion that is arranged to protrude from the end of the rear wall portion 51 on the inner side in the vehicle width direction to the vehicle front side, and is arranged along the surface portion of the inner panel 20 on the outer panel 10 side. Has been.
The extension portion 53 is a substantially flat portion formed by extending upward from the upper end portion of the side wall portion 52, and the upper end portion thereof is a window shoulder portion of the door 1 (upper end portions of the outer panel 10 and the inner panel 20). Located in the vicinity.
The closing surface portion 54 is a flat plate-like portion formed to protrude outward in the vehicle width direction from the upper end portion of the extension portion 53, and closes the gap between the door gusset member 40 and the inner panel 20. A band-like welding margin 54a protruding upward is provided at the protruding end of the closing surface portion 54 on the door gusset member 40 side, and the welding margin 54a is joined to the door gusset member 40 by spot welding.

  As shown in FIG. 4, the latchin hose 50 is welded to a boundary part between the side wall part 52 and the extension part 53 (an intermediate part in the vertical direction of the latchin hose 50) and a blocking surface part 54 on the upper side. In 54a, it joins to the door gusset member 40 by spot welding, and in the range between these welding locations, a box-shaped space part (closed cross-section part) exists between the gusset member 40 and the latch phosphorus hose 50. Is formed.

  Further, the extension 53 of the latchin hose 50 is joined at its upper end and lower end to the inner panel 20 by spot welding, and the latchin hose 50 and the inner panel are in the range between these welds. A box-shaped space (closed cross-section) is also formed between the two.

  The door handle 60 is an operation unit to which the above-described release operation of the latch unit is input, and is disposed on the front side of the latch unit and is fixed to the outer panel 10.

Next, the effect of Example 1 mentioned above is demonstrated in contrast with the comparative example 1 and the comparative example 2 of this invention demonstrated below. In each example and comparative example described below, portions that are substantially the same as those in the first embodiment described above are denoted by the same reference numerals, description thereof is omitted, and differences are mainly described.
FIG. 5 is a perspective view of the rear end portion of the door to which the vehicle door structure of Comparative Example 1 is applied, and is a view showing a state seen from an oblique front side outside the vehicle.
6 is a schematic cross-sectional view taken along the VI-VI portion of FIG.

  In the door 2 to which the vehicle door structure of Comparative Example 1 is applied, the door gusset member 40 is joined to the inner panel 20 at the upper end portion and the lower end portion of the extension portion 42 by spot welding. A box-shaped space (closed cross-section) is formed between the door gusset member 40 and the inner panel 20 in the range between the upper and lower welds. The door gusset member 40 is not joined to the outer panel 10 side, and a gap is provided between the upper end portion of the outer panel 10 and the door gusset member 40. Further, the latchin hose 50 is not provided with portions corresponding to the extension portion 53 and the blocking surface portion 54 of the first embodiment, and the lower end portion of the door gusset member 40 and the inner panel are formed at the upper end portion of the side wall portion 52. They are joined by spot welding in a state of being stacked.

FIG. 7 is a schematic cross-sectional view of a door rear end portion to which a vehicle door structure that is Comparative Example 2 of the present invention is applied.
In the door 3 to which the vehicle door structure of the comparative example 2 is applied, the door gusset member 40 is not provided with a portion corresponding to the extension portion 42 of the first embodiment, and the lower end portion is spot welded to the upper end portion of the outer panel 10. Are joined by.
Further, the latchin hose 50 is not provided with portions corresponding to the extension portion 53 and the blocking surface portion 54 of the first embodiment, and the upper end portion of the side wall portion 52 is joined to the inner panel 20 by spot welding.

  In the vehicle door structure of Comparative Example 1 described above, since the door gusset member 40 and the latchin hose 50 do not substantially exhibit a stiffening effect on the outer panel 10, the strength of the outer panel 10 itself and the support rigidity of the door handle 60 are provided. It is difficult to ensure sufficient, and the deformation amount of the door 2 becomes large at the time of a side collision, etc., and the door handle 60 may approach the latch means due to the deformation around the door handle 60 and the door 2 may be opened. There is. Further, since there is a gap between the outer panel 10 and the door gusset member 40 at the window shoulder portion of the door 2, rainwater or the like easily enters the inside of the door 2, and the quietness of the vehicle is also reduced.

  In the vehicle door structure of Comparative Example 2 described above, since the door gusset member 40 is joined to the outer panel 10 side, the intrusion of rainwater or the like into the door 3 from the outside is reduced, but the inner panel 20 and the latch Since the phosphorus hose 50 does not exhibit the stiffening effect of the outer panel 10, the deformation strength of the door 3 may be insufficient as in the first comparative example. Further, since there is a gap between the door gusset member 40 and the inner panel 20, the quietness of the vehicle is reduced.

On the other hand, according to Example 1 demonstrated above, the following effects can be acquired.
(1) By welding the upper end portion of the latching hose 50 to the door gusset member 40, the rear end portion of the door 1 has a strong structure, the amount of deformation at the time of a side collision is reduced, and the door handle 60 and the latch means are It is possible to prevent the door 1 from being opened by approaching.
(2) By forming a closed cross section between the extension portion 42 of the door gusset member 40 and the latch stiffening member 50, the rear end portion of the door 1 can be further strengthened.
(3) By providing the closing surface portion 54 that closes the space between the inner panel 20 and the door gusset member 40 at the upper end of the latchin hose 50, it is possible to prevent rainwater and the like from entering the door 1 and to insulate the vehicle. Can be improved.

Next, a second embodiment of the vehicle door structure to which the present invention is applied will be described.
FIG. 8 is a schematic cross-sectional view of the rear end portion of the door according to the second embodiment.
In the door 4 to which the vehicle door structure of the second embodiment is applied, the spot welding for joining the latch stiffening member 40 and the latch phosphorus hose 50 is performed only in the upper row, and as a result, the closed cross section in the first embodiment. The part is not formed.
In the second embodiment, the lower extension 42 of the door gusset member 40 extends to the door handle 60 side and is coupled to the door handle 60.
According to the second embodiment described above, by connecting the lower end portion of the door gusset member 40 to the door handle 60, the support rigidity of the door handle 60 can be improved, and a firm feeling during operation can be obtained.

(Modification)
The present invention is not limited to the embodiments described above, and various modifications and changes are possible, and these are also within the technical scope of the present invention.
(1) The material and shape of each member and the joining method between the members are not limited to those of the above-described embodiments, and can be changed as appropriate. For example, in each embodiment, each member is formed by, for example, pressing a steel plate. However, the present invention is not limited to this. For example, a nonferrous metal such as an aluminum alloy, a resin, or the like may be used. Also, the joining method is not limited to spot welding, and is not particularly limited, such as laser welding, adhesion, and rivet.
(2) In the second embodiment, no closed cross section is formed between the door gusset member extended to the door handle and the latch stiffening member, but the door gusset member is extended to the door handle as in the second embodiment. In addition, a closed cross section may be formed between the door gusset member and the latch stiffening member.

It is the typical external view which looked at the door to which the door structure for vehicles which is Example 1 of the present invention is applied from the vehicle side. It is the see-through | perspective perspective view which looked at the II section of FIG. 1 from the diagonally forward side of the vehicle outer side. It is the see-through | perspective perspective view which looked at the II section of FIG. 1 from the diagonal back side inside a vehicle. It is typical sectional drawing in the IV-IV part of FIG. It is the see-through | perspective perspective view which looked at the door to which the door structure for vehicles which is the comparative example 1 of this invention is applied from the diagonally forward side of the vehicle outer side. It is typical sectional drawing in the VI-VI part of FIG. It is typical sectional drawing of the door rear-end part in the vehicle door structure which is the comparative example 2 of this invention. It is typical sectional drawing of the door rear-end part in the vehicle door structure which is Example 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door 10 Outer panel 20 Inner panel 30 Sash 40 Door gusset member 41 Door gusset 42 Extension part 50 Latchlin hose 51 Rear wall part 52 Side wall part 53 Extension part 54 Closure surface part 60 Door handle

Claims (4)

An outer panel constituting a part of the vehicle outer plate,
An inner panel provided on the vehicle interior side of the outer panel, and forming a space with the outer panel;
Latch means provided at an end of the inner panel and engaged with a striker provided on the vehicle body side;
A door handle provided on the outer panel for operating the latch means;
A door sash that holds the edge of the door window glass;
A latch stiffening member attached to the inner panel at least around the latch means;
A door structure for a vehicle provided with a door gusset member provided above the latch means and between the outer panel and the door sash,
The door gusset member is fixed to the outer panel;
The vehicle door structure according to claim 1, wherein the latch stiffening member has an upper end portion disposed in the vicinity of a window shoulder portion of the outer panel, and the upper end portion is fixed to the door gusset member. The vehicle door structure according to claim 1,
A closed cross section is formed between the door gusset member and the latch stiffening member by fixing the door gusset member and the latch stiffening member at a plurality of positions spaced apart in the vertical direction. Door structure. In the vehicle door structure according to claim 1 or 2,
A vehicular door structure characterized in that a closing surface portion for closing a space between the inner panel and the door gusset member is provided at the upper end portion of the latch stiffening member. In the vehicle door structure according to any one of claims 1 to 3,
A door structure for a vehicle, wherein a lower end portion of the door gusset member is coupled to the door handle.

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