JP2007106189A - Wiper motor attaching structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiper motor attaching structure facilitating attachment of a wiper motor to a cowl top lower surface. <P>SOLUTION: The wiper motor attaching structure comprises a cowl top 11 extended in a vehicular width direction in a cabin front side, the wiper motor 12 disposed under the cowl top 11 and driving a wiper device, and the cowl top side bracket 29 fixed on a lower surface of the cowl top 11 and formed in a generally wave shape when viewed from a vehicular side part. The wiper motor 12 is fixed on a plurality of tilting surfaces 28a facing to the vehicular front part of the cowl top side bracket 29. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wiper motor mounting structure.

  A windshield glass such as a front part of a car compartment of an automobile is provided with a wiper device equipped with a rubber wiper blade to remove rainwater, dust and the like. This wiper device is driven by a wiper motor, and in many cases, this wiper motor extends in the vehicle width direction at the lower end of the windshield glass and is installed on the front surface of the cowl top constituting the skeleton member at the front of the vehicle body. Yes. An example of the layout of such a wiper device is disclosed in Patent Document 1 below.

JP-A-11-321568

  However, in the layout structure of the wiper device as disclosed in Patent Document 1, since the wiper motor is installed in front of the cowl top at the lower end of the windshield glass, it is difficult to lay out other parts on the front side of the cowl top. In addition, there is a possibility that the impact energy absorption at the time of a vehicle collision may be adversely affected, and there is room for improvement. Therefore, a layout in which the wiper motor is installed on the lower surface of the cowl top can be considered.

  However, when the wiper motor is installed on the lower surface of the cowl top, the attachment surface of the wiper motor becomes the lower surface of the cowl top, so that it is difficult to attach the wiper motor to the cowl top, and much labor is required. In particular, when fixing heavy parts such as wiper motors, it is common to set multiple mounting parts. When working on multiple mounting parts from below, deterioration of mounting workability is a major problem. It becomes.

  Accordingly, it is an object of the present invention to provide a wiper motor mounting structure that facilitates mounting of the wiper motor to the lower surface of the cowl top.

  A wiper motor mounting structure according to a first invention (corresponding to claim 1) that solves the above-mentioned problem is disposed below a cowl top that extends in the vehicle width direction in the front of the passenger compartment, A wiper motor that drives the wiper device; and a cowl top side bracket that is fixed to the lower surface of the cowl top and is formed in a substantially wave shape when viewed from the side of the vehicle, the front of the cowl top bracket facing the front of the vehicle. The wiper motor is fixedly attached to a plurality of inclined surfaces.

  A wiper motor mounting structure according to a second invention (corresponding to claim 2) that solves the above problem is the wiper motor mounting structure according to the first invention, wherein the wiper motor is connected to the cowl top side via a motor-side bracket. A plurality of portions of the motor-side bracket that are fixed to the cowl top-side bracket in a wavy shape that is substantially similar to the cowl top-side bracket when viewed from the side of the vehicle, and that faces the front of the vehicle. The inclined surface is a mounting surface for mounting to the cowl top bracket.

  A wiper motor mounting structure according to a third invention (corresponding to claim 3) that solves the above problem is the wiper motor mounting structure according to the second invention, wherein the motor side bracket is provided with a temporary placing hook, and the cowl The top bracket is provided with a temporary placement portion on which the temporary placement hook is hooked.

  A wiper motor mounting structure according to a fourth invention (corresponding to claim 4) that solves the above problem is the wiper motor mounting structure according to any one of the first to third inventions, wherein the cowl top bracket It is characterized in that a drainage port is provided in the corrugated valley portion.

  A wiper motor mounting structure according to a fifth invention (corresponding to claim 5) that solves the above problem is the wiper motor mounting structure according to any of the second to fourth inventions, wherein the motor side bracket is A mounting portion on which the wiper motor is installed adjacent to the side of the fixed portion; and a waterproof plate portion provided on the mounting portion side of the fixed portion to close the corrugated valley from the side. It is characterized by having.

  A wiper motor mounting structure according to a sixth invention (corresponding to claim 6) that solves the above-described problem is the wiper motor mounting structure according to the fifth invention, wherein a wave-shaped valley in the fixing portion of the motor side bracket is provided. The bottom surface of the part is inclined to the side opposite to the mounting part.

  According to the first invention, a cowl top that extends in the vehicle width direction in front of the passenger compartment, a wiper motor that is disposed below the cowl top and drives the wiper device, and is fixed to the lower surface of the cowl top, A cowl top bracket formed in a substantially wave shape when viewed from the side of the vehicle, and the motor side bracket by fixing and attaching the wiper motor to a plurality of inclined surfaces facing the front of the vehicle of the cowl top bracket. Since the mounting surface is directed to the front of the vehicle, it is easy to check the mounting position, and the wiper motor can be mounted easily.

  According to the second invention, the wiper motor is fixed to the cowl top bracket via the motor side bracket, and the shape of the fixing portion of the motor side bracket with respect to the cowl top side bracket is viewed from the side of the vehicle. It has a wave shape that is almost similar, and a plurality of inclined surfaces facing the front of the vehicle at the fixed part are used as mounting surfaces for mounting to the cowl top bracket, so that positioning is possible when mounting the motor side bracket to the cowl top bracket. It can be easily attached at a predetermined position.

  According to the third invention, the temporary holding hook is provided on the motor side bracket, and the temporary placing part on which the temporary placing hook is hooked is provided on the cowl top side bracket, so that the heavy wiper motor can be easily attached at a predetermined position. it can.

  According to the fourth aspect of the present invention, by providing a drain outlet at the corrugated valley portion of the cowl top side bracket, the rainwater or the like flowing through the cowl top to the wave trough portion of the cowl top side bracket is motorized. It can be drained so that it does not get exposed to etc.

  According to the fifth aspect of the present invention, the motor-side bracket is disposed on the side of the fixed portion, the mounting portion on which the wiper motor is installed, and on the mounting portion side of the fixed portion. By having the waterproof plate portion that is closed from the side, it is possible to prevent rainwater that has flowed through the cowl top bracket and flowing into the motor side bracket from entering the mounting portion side where the wiper motor is installed. Thereby, a wiper motor etc. can be protected from rain water etc.

  According to the sixth aspect of the invention, the corrugated trough bottom surface of the fixed portion of the motor side bracket is inclined to the side opposite to the mounting portion, so that the corrugated shape of the motor side bracket is transmitted along the cowl top bracket. Rainwater that has flowed into the valley can be drained actively.

  An embodiment of a wiper device mounting structure according to the present invention will be described with reference to FIGS. 1 is a perspective view of a wiper device mounting structure according to the first embodiment, FIG. 2 is a cross-sectional view taken along the line DD of FIG. 6 according to the first embodiment, and FIG. 4 is a cross-sectional view taken along the line DD of FIG. 6 according to the second embodiment, FIG. 5 is a perspective view of the wiper device, and FIG. 6 is a perspective plan view of the wiper device. In the figure, Fr indicates the front of the vehicle, In indicates the vehicle interior side, Up indicates the upper side of the vehicle, and the left-right direction is the left-right direction when facing the front of the vehicle.

  As shown in FIG. 5, there is a windshield glass 10 in the front part of the passenger compartment of the automobile. A cowl top 11, which is a skeletal member at the front of the vehicle body, is provided below the lower end of the windshield glass 10. As shown in FIG. 6, a motor 12 for driving the wiper is installed at the center of the lower surface of the cowl top 11.

  As shown in FIG. 1, the wiper motor 12 is attached to the lower surface of the cowl top 11 by a motor side bracket 13. The wiper motor 12 faces the front side of the motor side bracket 13 and is coupled to the lower surface of the right portion (hereinafter referred to as the mounting portion 13a) by bolting or the like.

  The shape of the left side portion (hereinafter referred to as a fixing portion 13b) of the motor side bracket 13 facing the front of the vehicle has a corrugated shape, and the shape of the cowl top side bracket 29 has a corrugation substantially similar to that of the fixing portion 13b. Yes. The fixed portion 13b of the motor side bracket 13 and the cowl top side bracket 29 have inclined surfaces 13e and 29a facing the front of the vehicle, respectively, on their lower surfaces. The motor side bracket 13 is coupled to the cowl top side bracket 29 by bolts 30 with the inclined surface 13e and the inclined surface 29a as attachment surfaces.

  A temporary placement hook 31 for temporarily placing the motor side bracket 13 when the motor side bracket 13 is coupled to the cowl top side bracket 29 is provided at an end of the fixing portion 13b of the motor side bracket 13 on the vehicle rear side. It has been. The temporary hook 31 has a claw shape.

  The cowl top bracket 29 is provided with a temporary placement portion 32 so that a temporary placement hook 31 can be hooked. As shown in FIG. 2, the temporary placement portion 32 is between the opening 37a and the opening 37b. Further, when the temporary placement hook 31 is temporarily placed, the tip 31a of the temporary placement hook 31 is inserted into the opening 37b, so that the motor side bracket 13 does not easily fall off.

  Anti-vibration rubber 33 is sandwiched between the bolt 30 and the fixing portion 13 b of the motor side bracket 13. The motor side bracket 13 and the cowl top side bracket 29 are coupled via a vibration isolating rubber 33. Further, a drain outlet 34 for draining rainwater or the like is provided at the bottom of the valley of the cowl top bracket 29.

  A waterproof plate portion 13d is provided between the fixing portion 13b of the motor side bracket 13 and the mounting portion 13a on which the wiper motor 12 of the motor side bracket 13 is mounted to prevent rainwater or the like from flowing toward the mounting portion 13a. It has been. Moreover, as shown in FIG. 3, the fixing | fixed part 13b of the motor side bracket 13 has the structure where the bottom face 13c inclined in the trough part. Furthermore, a drain outlet may be provided on the bottom surface 13 c of the valley of the fixing portion 13 b of the motor side bracket 13.

  As shown in FIGS. 5 and 6, a rotating plate 14 is provided at the center of the upper surface of the motor side bracket 13. A portion indicated by a broken line in FIG. 6 indicates that it is on the lower surface of the cowl top 11. The rotating plate 14 is connected to the wiper motor 12, and the rotating plate 14 can be rotated by driving the wiper motor 12.

  A pivot-side bracket 16 serving as a wiper support portion is installed at the right end of the front surface of the cowl top 11. The pivot side bracket 16 is provided with a rotatable columnar shaft (hereinafter, a first shaft member 17 and a second shaft member 18).

  The first shaft member 17 penetrates to the lower surface of the pivot side bracket 16, and a connecting portion 19 for transmitting a rotational force to the first shaft member 17 is provided at the lower end portion of the first shaft member 17. The pivot bracket 16 is provided with a drainage groove 20 for draining rainwater.

  A stay 21 for supporting the pivot side bracket 16 is provided on the lower surface of the pivot side bracket 16. The upper end portion of the stay 21 is coupled to the front surface of the cowl top 11 by bolting, and the lower end portion of the stay 21 is coupled to the front surface of the strut house 22 in which the strut is accommodated by bolting. The stay 21 is provided with a positioning pin 36 for installing the pivot side bracket 16 at a predetermined position of the stay 21.

  The pivot side bracket 16 has two bolt mounting portions 23, and the stay 21 and the pivot side bracket 16 are coupled to each other by bolting the bolt mounting portion 23 to the stay 21.

  The connecting portion 19 of the pivot side bracket 16 and the rotating plate 14 of the motor side bracket 13 are connected by a rod-like link 24 for transmitting the driving force of the wiper motor 12. The plate 14 and the end of the link 24 are rotatably coupled.

  A rod-like connecting shaft 25 is provided between the rear right side of the motor side bracket 13 and the rear left side of the pivot side bracket 16 to connect the motor side bracket 13 and the pivot side bracket 16.

  A main arm 27 for supporting and driving the wiper blade 26 is installed at the upper end portion of the first shaft member 17 of the pivot side bracket 16, and is opposite to the end portion of the main arm 27 supporting the wiper blade 26. An end portion 27 a on the side is rotatably coupled to the upper end portion of the first shaft member 17.

  A sub arm 28 is installed at the upper end portion of the second shaft member 18 to support the wiper blade 26 and to allow the wiper blade 26 to draw a desired wiping locus. The sub arm 28 supports the wiper blade 26 of the sub arm 28. An end portion 28a opposite to the end portion is rotatably coupled to the upper end portion of the second shaft member 18.

  When the rotating plate 14 rotates in the direction indicated by the arrow A from the state shown in FIG. 6, the connecting portion 19 also rotates in the direction indicated by the arrow B. As a result, the first axis also rotates in the direction indicated by the arrow C, so that the main arm 27 operates in the direction of lifting the wiper blade 26. When the wiper blade 26 is operated in the direction of paying off, the reverse operation to the paying up operation may be performed.

  According to the attachment structure of the wiper drive device according to the present embodiment, as shown in FIG. 1, the shape of the cowl top side bracket 29 fixed to the lower surface of the cowl top 11 is a corrugated shape. Since the fixing portion 13b of the motor side bracket 13 is attached to the inclined surface 29a facing the front of the vehicle, the mounting surface 13e of the motor side bracket faces the front of the vehicle. Therefore, it is easy to check the mounting position and it is not necessary for the operator to take a posture of looking down from below, so that the wiper motor 12 can be easily mounted.

  Further, the shape of the fixing portion 13b of the motor side bracket 13 is a wave shape substantially similar to the cowl top side bracket 29 when viewed from the side of the vehicle, and the inclined surface 13e facing the vehicle front of the fixing portion 13b is formed on the cowl top side bracket. By using the attachment surface for attachment to the motor 29, positioning when attaching the motor side bracket 13 to the cowl top side bracket 29 is easy, and it can be easily attached to a predetermined position.

  Further, the temporary bracket 31 is provided on the motor side bracket 13 and the temporary placement portion 32 on which the temporary hook 13 is hooked is provided on the cowl top bracket 29, so that a heavy wiper driving device can be easily attached at a predetermined position. be able to. Due to these effects, the burden on the operator can be greatly reduced.

  Further, as shown in FIG. 2, by providing a drain outlet 34 in the corrugated valley portion of the cowl top bracket 29, rainwater or the like flowing along the cowl top 11 is actively lowered from the drain outlet 34. It is possible to drain water so that rainwater or the like is not applied to the wiper motor 12 or the like because water does not accumulate in the corrugated valley portion of the cowl top bracket 29.

  Moreover, in the motor side bracket 13, since the waterproof board part 13d which closes a corrugated trough from the side is provided in the mounting part 13a side of the fixing | fixed part 13b, it follows the cowl top side bracket 29 and the motor side bracket 13 It is possible to prevent rainwater or the like that has flown from entering the adjacent placement portion side. Thereby, the wiper motor 12 etc. can be protected from rain water etc.

  Further, as shown in FIG. 3, the corrugated trough bottom surface 13c of the fixed portion 13b of the motor side bracket 13 is inclined to the side opposite to the mounting portion 13a. Rainwater or the like that has flowed into the corrugated valley portion of the side bracket 13 can be actively drained downward.

  Further, as shown in FIG. 2, by installing a vibration isolating rubber 33 on the bolt 30 that couples the motor side bracket 13 and the cowl top side bracket 29, it is possible to suppress the operation sound when the wiper is operated. .

  The vehicle body structure that is the subject of the second embodiment is the same as the vehicle body structure described in the first embodiment. As shown in FIG. 4, the vibration isolating rubber 33 is not installed on the bolt 30a, but the motor side bracket 13 and the cowl top side bracket 29 are connected so as to be in direct contact, and the vibration isolating rubber 33 is installed on the bolt 30b. The motor side bracket 13 and the cowl top side bracket 29 are coupled via the vibration isolating rubber 33.

  According to the attachment structure of the wiper drive device according to the second embodiment, as shown in FIG. 4, by installing the vibration isolating rubber 33 only on the bolt 30 b that couples the motor side bracket 13 and the cowl top side bracket 29. Since a high coupling strength can be obtained, it is possible to prevent the wiper from operating beyond a predetermined operating range, and it is possible to suppress operation noise when the wiper is operated.

  The present invention is particularly effective when the wiper motor of the wiper device is attached to the lower surface of the cowl top.

The perspective view of the attachment structure of the wiper apparatus which concerns on Example 1. FIG. Sectional drawing in the DD cross section of FIG. 6 which concerns on Example 1. FIG. Sectional drawing in the EE cross section of FIG. 6 which concerns on Example 1. FIG. Sectional drawing in the DD cross section of FIG. 6 which concerns on Example 2. FIG. Perspective view of wiper device Perspective plan view of wiper device

Explanation of symbols

11 Cowl top 12 Wiper motor 13 Motor side bracket 13a Motor side bracket mounting portion 13b Motor side bracket fixing portion 13c Motor side bracket fixing portion bottom surface 13d Motor side bracket waterproof plate portion 13e Motor side bracket inclined surface (mounting surface)
29 Cowl top bracket 29a Cowl top bracket inclined surface (mounting surface)
31 Temporary Hook 32 Temporary Place 33 Anti-Vibration Rubber 34 Drain Port

Claims (6)

A cowl top extending in the vehicle width direction in front of the passenger compartment;
A wiper motor disposed below the cowl top and driving the wiper device;
A cowl top bracket fixed to the lower surface of the cowl top and formed in a substantially wave shape when viewed from the side of the vehicle,
The wiper motor mounting structure, wherein the wiper motor is fixedly mounted on a plurality of inclined surfaces facing the front of the vehicle of the cowl top bracket. The wiper motor is fixed to the cowl top side bracket via a motor side bracket, and the shape of the fixing part of the motor side bracket to the cowl top side bracket is substantially similar to the cowl top side bracket when viewed from the vehicle side. 2. The wiper motor mounting structure according to claim 1, wherein a plurality of inclined surfaces facing the vehicle front side of the fixed portion are used as mounting surfaces for mounting to the cowl top bracket. The wiper motor mounting structure according to claim 2, wherein a temporary placement hook is provided on the motor side bracket, and a temporary placement portion on which the temporary placement hook is hooked is provided on the cowl top bracket. The wiper motor mounting structure according to any one of claims 1 to 3, wherein a drainage port is provided in a corrugated valley portion of the cowl top bracket. The motor-side bracket is provided on the mounting portion side where the wiper motor is installed adjacent to the side of the fixing portion, and closes the corrugated trough from the side. The wiper motor mounting structure according to any one of claims 2 to 4, further comprising a waterproof plate portion. The wiper motor mounting structure according to claim 5, wherein a corrugated trough bottom surface of the fixing portion of the motor side bracket is inclined to the opposite side to the mounting portion.

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