JP5580061B2 - Vehicle wiper device - Google Patents

Description

  The present invention relates to a vehicle wiper device that is mounted on a vehicle such as an automobile and wipes off deposits such as rainwater and snow attached to a windshield glass of the vehicle.

  Conventionally, as a wiper device for a vehicle, a so-called modular type in which members such as a pivot holder that rotatably supports a pivot shaft to which a wiper arm is attached and a wiper motor that drives the pivot shaft are connected together by a frame to form a single unit. Things are known. For example, in a wiper device having two wiper arms on the driver's seat side and the passenger seat side, a pivot holder on the driver's seat side and a pivot holder on the passenger seat side are fixed to both ends of the frame, and a motor is installed in the middle portion of the frame. A wiper motor is attached via the bracket. The output shaft of the wiper motor and each pivot shaft are connected by a link mechanism, and the power of the wiper motor is transmitted to each pivot shaft by this link mechanism.

  In such a modular wiper device, a pipe material having a circular cross section or a channel material having a U-shaped cross section is used as the frame. However, if the frame is straight, it is difficult to arrange the wiper device inside the vehicle body. .

  Therefore, conventionally, a plurality of bent portions are provided in the frame by bending using a bender or the like, so that the frame is formed into a predetermined shape that matches the mounting position of the pivot holder, the internal shape of the vehicle body, and the like. . For example, Patent Document 1 describes a technique in which the frame is formed in a crank shape by bending an intermediate portion of a pipe member having a circular cross section with pivot holders fixed to both ends at a plurality of locations. .

JP 2009-208740 A

  However, as shown in Patent Document 1, in the method of forming a plurality of bent portions on the frame by bending, the accuracy of the shape of the frame after bending becomes an uneasy point. On the other hand, the accuracy of the position and angle of the pivot holder and the wiper motor fixed to the frame depends on the accuracy of bending the frame.

  Therefore, when using a frame in which a plurality of bent portions are provided by bending, it is difficult to ensure the accuracy of the position and angle of the pivot holder, the wiper motor, and the like. In addition, in order to ensure the accuracy of the position and angle of the pivot holder and the like, it is necessary to manage a bending jig and a mold, which increases the cost accordingly.

  An object of the present invention is to increase the accuracy of the shape of a frame having a bent portion, and to increase the accuracy of the position and angle of a pivot holder, a wiper motor, and the like fixed to the frame.

In the vehicle wiper device of the present invention, a first pivot holder that rotatably supports a first pivot shaft to which a first wiper arm is attached, and a second pivot shaft to which a second wiper arm is attached are rotatable. A second pivot holder to be supported; a long first subframe formed in a straight line having a uniform cross section in the longitudinal direction; and one end fixed to the first pivot holder; The first subframe is formed in a straight line having a uniform cross section, one end is fixed to the second pivot holder, and the first subframe is formed in a straight line having a uniform cross section in the longitudinal direction. A third sub-frame arranged between one sub-frame and the second sub-frame, and the first sub-frame and the third sub-frame that are coupled with each other with the connection direction inclined. And the second subframe and the third subframe are connected to each other with the connecting direction inclined, and the first subframe, the second subframe, and the third subframe are connected to each other. A second frame coupling body constituting a frame by the frame and the first frame coupling body; and a wiper motor fixed to the frame and driving the first pivot shaft and the second pivot shaft, The first subframe, the second subframe, and the third subframe are formed in a pipe shape having a circular cross section, and the first frame coupling body includes a first body portion and the first body. Projecting from the first sub-frame and being fixed to the first sub-frame, and being projected from the first main body, and First A second fixing convex portion that is inserted into the tip of the subframe and fixed to the third subframe, wherein the second frame connection body includes a second main body portion, and the second subframe. Projecting from the main body, and projecting from the second main body, a third fixing projection inserted into the tip of the second sub-frame and fixed to the second sub-frame, And a fourth fixing convex portion inserted into the tip of the third subframe and fixed to the third subframe, the first fixing convex portion and the second fixing convex portion. The convex portions are arranged such that the protruding directions are inclined with respect to the first main body portion, and the third fixing convex portion and the fourth fixing convex portion are arranged on the second main body portion. projecting direction against is characterized that you have been arranged to be inclined to each other.

The vehicle wiper device according to the present invention is characterized in that the first subframe, the second subframe, and the third subframe are each formed in a pipe shape having a circular cross section .

In the vehicle wiper device of the present invention, the first subframe is fixed to the first fixing convex portion by caulking, and the second subframe is caulked to the third fixing convex portion. is fixed by the processing, the third sub-frame, characterized that you have been fixed by caulking to the convex fixing part of the second fixing projection and the fourth.

In the vehicle wiper device according to the present invention, each of the first fixing convex portion, the second fixing convex portion, the third fixing convex portion, and the fourth fixing convex portion has a cylindrical shape. The axial centers of the first fixing convex portion, the second fixing convex portion, the third fixing convex portion, and the fourth fixing convex portion are formed on the same plane. It is characterized by that.

In the vehicle wiper device according to the present invention, the first frame coupling body is formed by integrally forming the first main body portion, the first fixing convex portion, and the second fixing convex portion by casting. is, the second frame connection body, said second body portion and the third said the convex fixing part 4 of the fixing protrusions, and characterized that you have been integrally formed by casting To do.

In the wiper device according to the aspect of the invention, in the first frame coupling body, the first main body portion, the first fixing convex portion, and the second fixing convex portion are integrally formed of a resin material. said second frame coupling body, said second body portion and the third convex fixing part and the fourth convex fixing part, and features that you have been integrally formed by a resin material To do.

In the vehicle wiper device according to the present invention, the first frame coupling body includes the first main body portion, the first fixing convex portion, and the second fixing convex portion, which are formed separately from each other. and wherein the structure der Rukoto to assemble the.

According to the present invention, as the first subframe, the second subframe, and the third subframe, linear ones having a uniform cross section in the longitudinal direction are used, so that each subframe is bent. The shape accuracy of the frame provided with the bent portion can be further increased without using the processed one. In addition, each subframe can be formed by cutting a straight pipe material or channel material with a predetermined length without bending, thereby reducing the cost of each subframe. Can do.

  According to the present invention, since the fixing convex portion that is inserted into the tip of the sub-frame formed in a pipe shape and is fixed to the sub-frame is provided integrally with the frame connecting body, the sub-frame and the frame connecting body are provided. Can be easily and reliably connected.

  According to the present invention, since the subframe is fixed to the fixing convex portion of the frame connecting body by caulking, the subframe and the frame connecting body can be easily and reliably connected.

  According to the present invention, the fixing projections of the frame connecting body are formed in a columnar shape, and the axes of the fixing projections are arranged on the same plane. The caulking process on the convex portion can be performed once by one jig. Thereby, the operation | work which fixes a sub-frame to a frame coupling body can be made easy.

1 is a front view showing a part of a vehicle on which a vehicle wiper device according to an embodiment of the present invention is mounted. It is a perspective view which shows the detail of the wiper apparatus for vehicles shown in FIG. FIG. 3 is a perspective view of the frame shown in FIG. 2. It is a disassembled perspective view which shows the connection structure of a sub-frame and a frame coupling body. (A) is explanatory drawing which shows typically the structure of the wiper apparatus for vehicles shown in FIG. 2, (b) is an exploded view of the wiper apparatus for vehicles shown to the same figure (a). (A), (b) is a modification of the wiper device for vehicles shown in Drawing 2, respectively, and is a figure showing the case where the attachment position of a wiper motor is changed. It is a modification of the vehicle wiper device shown in FIG. 2, and is a view showing a case where a vehicle body attachment portion is provided integrally with a frame coupling body. FIG. 5 is a view showing a modification of the vehicle wiper device shown in FIG. 2 and showing a case where a frame is composed of two sub-frames and one frame connection body. It is a modification of the wiper device for vehicles shown in Drawing 2, and is a figure showing the case where a pivot holder is fixed to one end of a frame via a holder coupling object. FIG. 3 is a modification of the vehicle wiper device shown in FIG. 2, in which (a) shows a case where a vehicle body mounting portion is connected to one end of the frame, and (b) is a case where the vehicle body mounting portion is integrated with one end of the frame. It is a figure which shows the case where it forms. FIGS. 2A and 2B are modifications of the vehicle wiper device shown in FIG. 2, wherein FIG. 2A is a diagram illustrating a case where a frame is arranged on a horizontal surface in the radial direction of the pivot shaft, and FIG. It is a figure which shows the case where a vehicle body attachment part is integrally provided in the frame coupling body of the vehicle wiper apparatus shown in FIG. It is a figure which shows the case where it is a modification of the vehicle wiper apparatus shown in FIG. 2, Comprising: The thing provided with the part bent as a sub-frame is used.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, a vehicle wiper device 11 (hereinafter referred to as a wiper device 11) according to an embodiment of the present invention includes two wiper arms 12a on a driver side and a wiper arm 12b on a passenger side. The tandem type includes wiper arms 12a and 12b, and includes a driver-side pivot shaft 13a to which the driver-side wiper arm 12a is attached and a passenger-side pivot shaft 13b to which the passenger-side wiper arm 12b is attached. These pivot shafts 13 a and 13 b are mounted on the vehicle body 15 in a state where the pivot shafts 13 a and 13 b protrude downward from the windshield glass (front glass) 14.

  Each pivot shaft 13a, 13b is connected to a wiper motor 17 through a link mechanism 16, and is driven to swing by the wiper motor 17. A wiper blade 18a on the driver's seat side is attached to the tip of the wiper arm 12a on the driver's seat side, and a wiper blade 18b on the passenger's seat side is attached to the tip of the wiper arm 12b on the passenger seat side, and each pivot shaft 13a, 13b. When the wiper motor 17 is driven to swing, the wiper blades 18a and 18b swing together with the wiper arms 12a and 12b within a predetermined angular range around the corresponding pivot shafts 13a and 13b and adhere to the windshield glass 14. It is designed to wipe out rainwater.

  As shown in FIG. 2, the wiper device 11 includes two pivot holders 21a and 21b, a pivot holder 21a on the driver's seat side and a pivot holder 21b on the passenger seat side. The pivot shaft 13b on the passenger seat side is rotatably supported by the pivot holder 21b on the passenger seat side.

  The pivot holders 21a and 21b are integrally provided with vehicle body fixing portions 21a1 and 21b1 fixed to the vehicle body 15 by fastening members such as bolts.

  The wiper motor 17 is a motor with a speed reducer including an electric motor 17a and a speed reducer 17b, and is attached to the motor bracket 22 at a portion of the speed reducer 17b. The output shaft 17c of the wiper motor 17 protrudes to the back side (upper side in FIG. 2) of the motor bracket 22, and an output link 23 is fixed to the tip thereof. The output link 23 and the driver's seat side drive lever 24a fixed to the driver's seat side pivot shaft 13a are connected by a drive rod 25 and fixed to the driver's seat side drive lever 24a and the passenger's seat side pivot shaft 13b. The driving lever 24b on the passenger seat side is connected by a connecting rod 26. That is, the above-described link mechanism 16 is constituted by the rods 25 and 26, the output link 23, and the drive levers 24a and 24b. The link mechanism 16 converts the rotational motion of the output shaft 17c of the wiper motor 17 into a swing motion and transmits it to the pivot shafts 13a and 13b.

  The wiper device 11 includes a frame 31, which is a so-called modular type in which the pivot holders 21 a and 21 b and the wiper motor 17 are connected by the frame 31.

  As shown in FIG. 3, a frame 31 used in the wiper device 11 has three sub-frames 32, 33, 34 connected by two frame connecting bodies 35, 36, and has a predetermined bent portion. It is configured in shape.

  Each of the sub-frames 32, 33, and 34 is formed by cutting a pipe material into a predetermined length, and each has a straight shape having a uniform circular cross section in the longitudinal direction. That is, each of the sub-frames 32, 33, 34 is formed in a long and straight pipe shape with a circular cross section.

  On the other hand, as shown in FIGS. 4 and 5, the frame coupling bodies 35 and 36 include spherical main body portions 35 a and 36 a and two fixing convex portions 35 b and 36 b protruding from the main body portions 35 a and 36 a, respectively. These are integrally formed by casting.

  In the case shown in the figure, the main body portions 35a, 36a and the fixing convex portions 35b, 36b are integrally formed by casting. However, the present invention is not limited thereto, and the main body portions 35a, 36a and the fixing convex portions 35b, 36b may be integrally formed of another material such as a resin material, or the main body portions 35a and 36a and the fixing convex portions 35b and 36b formed separately from each other may be assembled.

  Each of the fixing projections 35b and 36b is formed in a columnar shape, and the axes thereof are both on the same plane and are arranged so as to be inclined with respect to each other. That is, the fixing convex portions 35b and 36b are arranged such that the protruding directions are inclined with respect to the main body portions 35a and 36a. The fixing projections 35b and 36b have outer diameters set to be substantially the same as the inner diameters of the sub-frames 32, 33 and 34, and the fixing projections 35b and 36b correspond to the corresponding sub-frames 32, 33 and 34, respectively. 34 is inserted into the tip. The portions into which the fixing projections 35b and 36b of the subframes 32, 33, and 34 are inserted are caulked from the outer peripheral surface side, whereby the subframes 32, 33, and 34 are fixed to the corresponding fixing projections 35b, It is fixed to 36b. Each of the sub-frames 32, 33, and 34 is fixed to the fixing projections 35b and 36b of the frame connecting body 35 and 36 with the same configuration, so that the three sub-frames 32, 33, and 34 are connected to the two frames. The frame 31 is formed by being connected to each other by the bodies 35 and 36.

  Here, since the fixing convex portions 35b and 36b of the frame connecting bodies 35 and 36 are inclined in the axial direction, the sub frames 32, 34 and 33 are connected to each other by the frame connecting bodies 35 and 36. That is, the axial directions are inclined and connected. Further, the fixing convex portion 35b of the frame connecting body 35 and the fixing convex portion 36b of the frame connecting body 36 are also arranged so that their axes are on the same plane. As a result, the frame 31 has the three sub-frames 32, 33, and 34 arranged on the same plane, and has a bent portion between the sub-frames 32, 33, and 34, that is, two bent portions. It is formed in the shape provided with.

  The motor bracket 22 to which the wiper motor 17 is attached is fixed to the intermediate portion in the longitudinal direction of the central sub-frame 33 constituting the frame 31 by a fastening member 41. That is, the wiper motor 17 is connected (fixed) to the frame 31 via the motor bracket 22. Further, the pivot holder 21a on the driver's seat side is fixed to one end in the longitudinal direction of the frame 31, that is, the end in the longitudinal direction on the opposite side to the frame coupling body 36 of the subframe 34 on the right side in FIG. The pivot holder 21b is fixed to the other end in the longitudinal direction of the frame 31, that is, the end in the longitudinal direction on the opposite side to the frame coupling body 35 of the subframe 32 on the left side in FIG. That is, the wiper motor 17 is fixed to the central portion of the frame 31 in the longitudinal direction, and the pivot holders 21 a and 21 b are fixed to both ends of the frame 31 in the longitudinal direction.

  As shown in FIG. 5, the pivot holders 21 a and 21 b are also provided with columnar fixing convex portions 42 similar to the frame coupling bodies 35 and 36, and these fixing convex portions 42 are connected to the subframe 32. , 34, and the portions of the sub-frames 32, 34 are caulked from the outer peripheral surface side, whereby the pivot holders 21a, 21b are fixed to the frame 31.

  As described above, in the wiper device 11, the frame 31 is formed by connecting the sub-frames 32, 33, and 34, which are formed in a long and straight pipe shape having a circular cross section, with the frame connecting bodies 35 and 36 inclining the connecting direction to each other. By connecting, as a whole, it was formed into a shape having two bent portions, so that the frame 31 having a bent portion was used without using pipe material or channel material bent by a bender or the like. Can be configured. That is, instead of forming a single pipe material by bending, the frame 31 is divided into a plurality of sub-frames 32, 33, 34, and these sub-frames 32, 33, 34 are connected to the frame coupling bodies 35, 36. Since the frame 31 having a plurality of bent portions is formed by connecting the members with the connecting directions inclined to each other, the frame 31 having the plurality of bent portions can be formed without bending by a bender or the like. Can be formed. Therefore, the shape accuracy of the frame 31 of the present invention can be improved with respect to the frame formed by bending the pipe material, whereby the positions of the pivot holders 21a and 21b and the wiper motor 17 fixed to the frame 31 are improved. And the accuracy of the angle can be increased.

  Further, in the wiper device 11, since the long and straight pipes having a circular cross section are used as the subframes 32, 33 and 34, simple processing for cutting the pipe material with a predetermined length dimension is performed. The subframes 32, 33, and 34 can be formed only by the above. Thereby, the processing of the subframes 32, 33, and 34 can be facilitated to increase the accuracy thereof, and the cost can be reduced.

  Further, in the wiper device 11, fixing convex portions 35 b and 36 b that are inserted into the tips of the subframes 32, 33, and 34 and are fixed to the subframes 32, 33, and 34 are integrated with the frame coupling bodies 35 and 36. Since it is provided, the connection structure between the sub-frames 32, 33, 34 and the frame connecting bodies 35, 36 can be simplified, and the connection can be made easily and reliably. Further, since the sub frames 32, 33, 34 are fixed to the fixing projections 35b, 36b of the frame connecting bodies 35, 36 by caulking, the sub frames 32, 33, 34 and the frame connecting bodies 35, 36 are Can be more easily and reliably connected.

Further, in the wiper device 11, the axis of each fixing projection 35 b of the frame coupling body 35 that connects the central subframe 33 and the left subframe 32, the central subframe 33, and the right subframe 34. The three sub-frames 32, 33, and 34 constituting the frame 31 are arranged on the same plane by arranging the axis of each fixing projection 36b of the frame coupling body 36 that couples the frame 31 on the same plane. Like to do. As a result, it is possible to perform the caulking process of the fixing convex portions 35b, 36b on the sub frames 32, 33, 34 at a time with one jig on the same plane, thereby facilitating the work. it can.
In the present embodiment, subframe 34 corresponds to the first subframe, subframe 32 corresponds to the second subframe, and subframe 33 corresponds to the third subframe. The fixing convex portion 36b connected to the subframe 34 corresponds to a first fixing convex portion, and the fixing convex portion 36b connected to the subframe 33 corresponds to a second fixing convex portion. Further, the fixing convex portion 35b connected to the subframe 32 corresponds to a third fixing convex portion, and the fixing convex portion 35b connected to the subframe 33 corresponds to a fourth fixing convex portion. Furthermore, the main body portion 36a corresponds to the first main body portion, and the main body portion 35a corresponds to the second main body portion.

  FIGS. 6A and 6B are each a modification of the vehicle wiper device shown in FIG. 2, and shows a case where the attachment position of the wiper motor is changed.

  In the case shown in FIG. 2, the wiper motor 17, that is, the motor bracket 22 is fixed to the central sub-frame 33 that constitutes the frame 31, but not limited thereto, the wiper motor 17, that is, the motor bracket 22 is fixed to the frame 31. If so, for example, as shown in FIG. 6 (a), it may be fixed to the subframe 34 connected to the pivot holder 21a on the driver's seat side, and as shown in FIG. You may make it fix directly to the pivot holder 21a by the side of a seat. The wiper motor 17, that is, the motor bracket 22 is not limited to the right side subframe 34 and the driver seat side pivot holder 21 a in FIG. 6, but is fixed to the left side subframe 32 and the passenger seat side pivot holder 21 b in FIG. 6. It may be.

  FIG. 7 is a modification of the vehicle wiper device shown in FIG. 2 and is a view showing a case where a vehicle body attachment portion is integrally provided on the frame coupling body.

  The vehicle body attachment portion 43 is fixed to the vehicle body 15 by a fastening member such as a bolt, and the vehicle body attachment portion 43 can be provided integrally with the frame coupling body 36. Such a vehicle body attachment portion 43 is not provided in the subframes 32, 33, 34, but is provided integrally with the frame coupling body 36, so that welding or the like occurs when the vehicle body attachment portions are provided in the subframes 32, 33, 34. This eliminates the need for additional processing and additional parts such as screw members, thereby reducing the cost.

  In the illustrated case, the vehicle body mounting portion 43 is provided integrally with the frame connector 36, but may be provided integrally with the frame connector 35.

  FIG. 8 shows a modification of the vehicle wiper device shown in FIG. 2, and shows a case where the frame is composed of two subframes and one frame connection body.

  In the case shown in FIG. 2, the frame 31 is composed of three subframes 32, 33, 34 and two frame connections 35, 36. However, the present invention is not limited to this, and as shown in FIG. The frame 31 may be configured by the subframes 32 and 34 and one frame coupling body 35. In this case, the sub-frame 33 and the frame connecting body 36 are removed from the configuration of FIG. 2, one fixing convex portion 35b of the frame connecting body 35 is connected to the sub-frame 32, and the other fixing convex portion 35b is connected to the sub-frame 32. Connected to the frame 34.

  FIG. 9 is a modification of the vehicle wiper device shown in FIG. 2 and shows a case where a pivot holder is fixed to one end of a frame via a holder coupling body.

  In the case shown in FIG. 2, the pivot holder 21 a on the driver's seat side is directly fixed to one end of the frame 31, that is, one end of the sub-frame 34. The holder coupling body 44 may be fixed to the tip of the frame 34, and the pivot holder 21a on the driver's seat side may be fixed to the holder coupling body 44. In this case, as the holder coupling body 44, a body provided with a main body portion 44a and two fixing convex portions 44b protruding therefrom is used, and the pivot holder 21a on the driver's seat side is attached to the frame 31 via the holder coupling body 44. Fixed to.

  FIG. 10 is a modification of the vehicle wiper device shown in FIG. 2, wherein (a) is a view showing a case where a vehicle body mounting portion is coupled to one end of the frame, and (b) is a vehicle body mounting portion at one end of the frame. It is a figure which shows the case where is formed integrally.

  In the case shown in FIG. 2, pivot holders 21 a and 21 b are connected to both ends of the frame 31 in the longitudinal direction. However, the present invention is not limited to this, and the pivot holder 21 a is fixed only to one end in the longitudinal direction of the frame 31. Instead of the pivot holder 21b, a vehicle body attachment portion 45 may be provided at the other end in the longitudinal direction. For example, in the case shown in FIG. 10A, the subframe 32 and the frame connector 35 are removed from the configuration of FIG. The vehicle body attachment part 45 formed separately is connected. As the vehicle body mounting portion 45, a body provided with a main body portion 45 a and a columnar fixing convex portion 45 b is used, and the subframe 33 is inserted with the fixing convex portion 45 b inserted into the tip of the subframe 33. Is fixed to the subframe 33 by caulking. On the other hand, in the case shown in FIG. 10B, the vehicle body attachment portion 45 is formed integrally with one end in the longitudinal direction of the frame 31, that is, one end in the longitudinal direction of the sub-frame 33. That is, the tip portion of the sub-frame 33 is crushed by pressing or the like to be processed into a flat plate shape, and then drilled to form a mounting hole (not shown), and a grommet or the like is attached to the mounting hole. A mounting portion 45 is formed.

  FIG. 11 is a modification of the vehicle wiper device shown in FIG. 2, wherein (a) is a diagram showing a case where the frame is arranged on a horizontal surface in the radial direction of the pivot shaft, and (b) is the same figure. It is a figure which shows the case where a vehicle body attachment part is integrally provided in the frame coupling body of the vehicle wiper apparatus shown to (a).

  In the case shown in FIG. 2, the frame 31 is formed in a shape arranged on a horizontal plane in the axial direction of the pivot shafts 13 a and 13 b, but not limited thereto, for example, as shown in FIG. You may make it form the flame | frame 31 in the shape arrange | positioned on the plane horizontal in the radial direction of pivot shaft 13a, 13b. Also in this case, as shown in FIG. 11B, the vehicle body attachment portion 43 similar to that shown in FIG.

  FIG. 12 is a view showing a modification of the vehicle wiper device shown in FIG. 2 and a case where a sub-frame having a bent portion is used.

  In the case shown in FIG. 2, straight pipe materials are used as the subframes 32, 33, 34. However, the present invention is not limited to this, and for example, as shown in FIG. A bent pipe material that has been subjected to bending processing may be used. Also in this case, since the two sub-frames 32 and 34 are connected to each other with the connecting direction inclined by the frame connecting body 36, all the bent portions of the frame 31 are bent by a bender or the like. In comparison, the number of bending portions can be reduced, so that the shape accuracy of the frame 31 can be increased accordingly.

  6 to 12 are shown as exploded views corresponding to FIG. 5B, and the wiper device 11 is formed by fixing each member to the frame 31. Moreover, in FIGS. 6-12, the same code | symbol is attached | subjected to the member mentioned above. 7 to 12, the wiper motor 17 or the motor bracket 22 may be fixed to any of the subframes 32 and 34 and the pivot holders 21a and 21b.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the above-described embodiment, a pipe material having a circular cross section is used as the subframes 32, 33, 34. May be.

  In the above embodiment, the length dimensions of the sub-frames 32, 33, and 34 are set to predetermined length dimensions that are different from each other. Can be arbitrarily set according to the vehicle on which the is mounted. For example, the subframes 32, 33, and 34 can be set to the same length dimension. In this case, since the same thing can be used as the sub-frames 32, 33, and 34, the versatility can be improved and the cost can be further reduced.

  Furthermore, in the above-described embodiment, the three sub-frames 32, 33, and 34 are all the same in outer diameter, but the present invention is not limited to this, and, for example, the wiper motor 17 is fixed. A plurality of types of sub-frames 32, 33, and 34 having different outer dimensions depending on the required strength, such as setting the outer dimensions of the sub-frames 32 and 34 on both sides where the wiper motor 17 is not fixed to the central sub-frame 33 to be small. They may be used in combination. As a result, the subframes 32, 33, and 34 that are unnecessarily high in strength are not used, and the cost of the subframes 32, 33, and 34 can be further reduced.

DESCRIPTION OF SYMBOLS 11 Vehicle wiper apparatus 12a Wiper arm 12b on driver's side 12b Wiper arm on passenger's side 13a Pivot shaft 13b on driver's side 13Pivot shaft on passenger's side 14 Windshield glass 15 Car body 16 Link mechanism 17 Wiper motor 17a Electric motor 17b Reducer 17c Output Axis 18a Wiper blade on driver side 18b Wiper blade on passenger side 21a Pivot holder on driver side 21b Pivot holder on passenger side 21a1, 21b1 Car body fixing portion 22 Motor bracket 23 Output link 24a Driver lever on driver side 24b Assistant Seat side drive lever 25 Drive rod 26 Connection rod 31 Frame 32, 33, 34 Subframe 35, 36 Frame connection body 35a, 36a Main body 35b, 36b Fixing convex part 41 Fastening member 42 Fixing convex part 43 Car body mounting portion 44 Holder connector 44a Main body portion 44b Fixing convex portion 45 Car body mounting portion 45a Main body portion 45b Fixing convex portion

Claims (7)

A first pivot holder that rotatably supports a first pivot shaft to which the first wiper arm is attached;
A second pivot holder that rotatably supports a second pivot shaft to which the second wiper arm is attached;
A long first sub-frame formed in a straight line having a uniform cross section in the longitudinal direction and having one end fixed to the first pivot holder;
A long second subframe formed in a straight line having a uniform cross section in the longitudinal direction and having one end fixed to the second pivot holder;
A third subframe formed in a straight line having a uniform cross section in the longitudinal direction and disposed between the first subframe and the second subframe;
A first frame coupling body that couples the first sub-frame and the third sub-frame with each other inclined in a coupling direction;
The second subframe and the third subframe are connected to each other with the connection direction inclined, and the first subframe, the second subframe, the third subframe, and the first subframe are connected. A second frame coupling body that forms a frame with the frame coupling body;
A wiper motor fixed to the frame and driving the first pivot shaft and the second pivot shaft;
The first subframe, the second subframe, and the third subframe are formed in a pipe shape having a circular cross section;
The first frame connector is:
A first body portion;
A first fixing projection that protrudes from the first main body and is inserted into the tip of the first subframe and fixed to the first subframe;
A second fixing projection that protrudes from the first main body and is inserted into the tip of the third subframe and fixed to the third subframe.
The second frame coupling body is:
A second body portion;
A third fixing protrusion protruding from the second main body and inserted into the tip of the second subframe and fixed to the second subframe;
A fourth fixing projection that protrudes from the second main body and is inserted into the tip of the third subframe and fixed to the third subframe.
The first fixing convex portion and the second fixing convex portion are arranged so that the protruding directions are inclined with respect to the first main body portion,
The third fixed projection and the fourth convex fixing part, the second wiper device according to claim Rukoto projecting direction are arranged so as to be inclined to each other with respect to the body portion. 2. The vehicle wiper device according to claim 1, wherein each of the first subframe, the second subframe, and the third subframe is formed in a pipe shape having a circular cross section. Wiper device. 3. The vehicle wiper device according to claim 2 , wherein the first subframe is fixed to the first fixing convex portion by caulking, and the second subframe is the third fixing convex portion. swaging the fixed, the third sub-frame, the second wiper apparatus characterized that you have been fixed by caulking to the convex fixing part and the fourth convex fixing portions. The vehicle wiper device according to any one of claims 1 to 3 , wherein the first fixing convex portion, the second fixing convex portion, the third fixing convex portion, and the fourth fixing portion. The projecting convex portions are each formed in a columnar shape, and the first fixing convex portion, the second fixing convex portion, the third fixing convex portion, and the axis of the fourth fixing convex portion. Are arranged on the same plane as each other, and the vehicle wiper device is characterized in that: 5. The vehicle wiper device according to claim 1, wherein the first frame coupling body includes the first main body portion, the first fixing convex portion, and the second fixing convex portion. Part is integrally formed by casting,
It said second frame coupling body, vehicle and the second body portion and the third said the convex fixing part fourth convex fixing part, characterized that you have been integrally formed by casting Wiper device. 5. The vehicle wiper device according to claim 1, wherein the first frame coupling body includes the first main body portion, the first fixing convex portion, and the second fixing convex portion. Part is integrally formed of a resin material,
Said second frame coupling body, said second body portion and the third said the convex fixing part fourth convex fixing part, characterized that you have been integrally formed by a resin material A wiper device for a vehicle. The vehicle wiper apparatus according to any one of claims 1-4, wherein the first frame connection member, the said first body portion formed as separate members first fixing projection A vehicle wiper device characterized by having a structure for assembling the second fixing convex portion .

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