JP2002337668A - Structure of wiper module mounting part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a wiper module mounting part capable of improving moldability of a front frame bulk and improving rigidity and mounting workability of the wiper module mounting part. SOLUTION: The structure of the wiper module mounting part includes a bulk head for partitioning a cabin and an engine room, and a wiper module with a driving motor and a link mechanism arranged in the bulk head and integrally mounted on a wiper frame, and attaches an outer side pivot part positioned on an outside in a vehicle width direction out of two pivot parts provided in the vehicle width direction of the wiper module on the frame front bulk of a closed cross section shape extending in back and forth directions of a vehicle body on both sides of the bulk head. The frame front bulk includes at least a frame front bulk inner 21 for forming an inner side wall, and a reinforcing plate 22 joined with the frame front bulk inner 21 for forming an upper wall, and the outer side pivot part is attached on the reinforcing plate 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiper device for a vehicle such as an automobile, and more particularly to a structure for attaching a wiper module having a drive motor and a link mechanism integrally attached to a frame to a vehicle body.

[0002]

2. Description of the Related Art In a vehicle such as an automobile, there is a wiper device for wiping rainwater falling on a windshield in rainy weather. Conventionally, various types of such wiper devices have been used. For example, a link mechanism is provided in a cowl box, and a drive motor is provided on a front wall of a cowl top panel outside the cowl box. There is one disclosed in Japanese Unexamined Patent Publication No. Hei 5-185907. However, since the wiper device employs a configuration in which the drive motor and the link mechanism are separately mounted, it takes time to set up the wiper device. Therefore, a module-type wiper device in which a drive motor and a link mechanism are integrally attached to a wiper frame, that is, a wiper module has been devised, and the rigging work of the wiper device has been greatly simplified.

FIGS. 5 to 7 show an example of a wiper module and a mounting structure of the wiper module.
As shown in FIG. 5, the wiper module 51 in which a drive motor 52 and a link mechanism 56 are integrally attached to a wiper frame 55 is disposed in a bulkhead 74 that separates a vehicle compartment and an engine room. is there. Outer pivot portion 5 located outside of wiper module 51 in the vehicle width direction
As shown in FIG. 6, L-shaped frame front bulk inners 71 form inner and upper walls of a frame front bulk (not shown) having a closed cross section and extending in the vehicle longitudinal direction on both sides of the bulkhead 74, as shown in FIG. Reinforcing plate 72 fixed to
And a mounting point B of a mounting bracket 75 fixed to the bulkhead front wall 74A. Also,
As shown in FIG. 7, at least one inner pivot portion 54 located inward in the vehicle width direction of the wiper module 51 is disposed substantially at the center of the bulkhead 74 in the vehicle width direction.
Bridge plate 73 stretched and fixed between 4A and 74B
Is attached to the reinforcing member 76 joined to the front wall at the attachment point C below the lower side.

[0004]

However, at this time, since the horizontal flange portion 71B is longer than the depth of the vertical wall portion 71A, the frame front bulk inner 71 has a deep drawing shape, and there is a problem in formability. there were. Mounting point B
And C, the front wall 74A of the bulkhead is usually thinner than the frame front bulk inner 71 and the reinforcing plate 72, so the wiper module support strength at these mounting points is low, and the drive motor and link mechanism However, in the case of the integrated wiper module, the reaction force transmitted through the wiper arm is more likely to occur in the front-rear direction due to the reaction force due to the wiper wiping operation as compared with the wiper device of a separate component. Vibration and noise may be increased. further,
At the attachment point C, since it is located below the bridge plate 73, there is a problem that the attachment workability is inferior.

Accordingly, the present invention solves the above-mentioned problems in the conventional structure of the wiper module mounting portion, and can improve the formability of the front frame bulk, the rigidity of the wiper module mounting portion, and the mounting workability. It is an object of the present invention to provide a wiper module mounting structure.

[0006]

According to the present invention, there is provided a bulkhead for partitioning a vehicle compartment and an engine room, and a drive motor and a link mechanism disposed in the bulkhead are integrally attached to a wiper frame. A wiper module, and an outer pivot portion, which is located outward in the vehicle width direction, of two pivot portions provided in the vehicle width direction of the wiper module extends in the vehicle longitudinal direction on both sides of the bulkhead. The frame front bulk having at least an inner wall, and a reinforcing plate forming an upper wall by combining with the frame front bulk inner. Wherein the outer pivot portion is attached to the reinforcing plate. The upper wall of Ntobaruku can improve the moldability of the frame front bulk inner by forming reinforcing plate for mounting the outer pivot portion. Further, the present invention is characterized in that the outer pivot portion is attached to the reinforcing plate at at least two points in the front-rear direction, and the wiper is attached to the reinforcing plate thicker than the bulkhead front wall. The module support strength can be improved, vibration and noise due to the reaction force transmitted through the wiper arm during wiper wiping can be suppressed, and the mounting part of the outer pivot part is set to two points on the same reinforcing plate. Therefore, the mounting position accuracy is also improved. Further, the present invention is characterized in that a hood hinge of a hood for covering an engine room is attached to the reinforcing plate, and the hood hinge is attached to a reinforcing plate for attaching an outer pivot portion, whereby a separate reinforcement is provided. No board is required, and the number of parts can be reduced. According to another aspect of the present invention, there is provided a wiper in which a bulkhead having an opening above and defining a vehicle compartment and an engine room, and a drive motor and a link mechanism disposed in the bulkhead are integrally attached to a wiper frame. A wiper module mounting part structure for mounting, to the bulkhead, an inner pivot part located inward in the vehicle width direction among two pivot parts provided in the vehicle width direction of the wiper module. The pivot portion is attached to the bulkhead via a bridge plate for preventing opening of the opening provided in at least one place in the vehicle width direction, and the inner pivot portion is attached to the bridge plate. ,
Workability is improved, and the number of components can be reduced without requiring a separate reinforcing member.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show an embodiment of a wiper module mounting portion structure of the present invention. FIG. 1A is a perspective view of the vicinity of a bulkhead to which a wiper module is mounted as viewed from the front side of a vehicle. (B) is a plan view of a wiper module employed in the wiper mounting portion structure of the present invention,
FIG. 2 is an exploded perspective view of the vicinity of a reinforcing plate to which the outer pivot portion of the wiper module is attached, and FIG. 3 is a perspective view and a cross-sectional view of the vicinity of a bridge plate which is a substantially central portion of the bulkhead to which the inner pivot portion of the wiper module is attached. FIG. 4 is an enlarged cross-sectional view taken along the line AA of FIG. According to the present invention, as shown in FIG. 1, a bulkhead 24 for partitioning a vehicle compartment and an engine room, a drive motor 2 and a link mechanism disposed in the bulkhead 24 are integrally attached to a wiper frame 5. And the outer pivot portion 3 located on the outer side in the vehicle width direction among the two pivot portions 3 and 4 provided in the vehicle width direction of the wiper module 1. In a wiper module mounting portion structure for mounting to a frame front bulk having a closed cross-section extending in the vehicle front-rear direction, the frame front bulk is connected to a frame front bulk inner 21 forming at least an inner wall and the frame front bulk inner 21. And a reinforcing plate 22 forming an upper wall, wherein the outer pivot portion 3 is attached to the reinforcing plate 22. And butterflies.

More specifically, as shown in FIG. 1B, the wiper module 1 employed in the wiper mounting portion structure of the present invention has a first pivot in which both right and left ends of a wiper frame 5 are outer pivot portions 3. The wiper frame holding portion of the holder bracket formed integrally with the holder 10 and the wiper frame holding portion formed integrally with the second pivot holder 12 serving as the inner pivot portion 4 are connected by caulking or bolts. . A first pivot shaft 11 to which a base of a first wiper arm 17 is connected is supported by the first pivot holder 10, and a second pivot shaft to which a base of a second wiper arm 18 is connected to the second pivot holder 12. 13 is supported. A drive motor 2 integral with the gear case is fixed to the holder bracket by bolts or the like, and mounting portions 3A and 3B formed at front and rear end portions have mounting points A to the vehicle body.
Attachment holes 16A and 16B serving as B are formed.

On the other hand, the second pivot holder 12 is integrally formed with front and rear mounting portions, and mounting holes 4C and 16D serving as mounting points C and D are formed in the mounting portions 4A and 4B. The rotational driving force of the drive motor 2 causes the second pivot shaft 13 to reciprocate and rotate via the first lever 8A, the first rod 8, and the second lever 9 as a link mechanism.
The first pivot shaft 11 is reciprocally rotated via the lever 9, the second rod 6, and the third lever 7. Thus, each of the first
The first and second wiper arms 17 and 18 having their bases mounted on the second pivot shafts 11 and 13 swing in synchronization with each other, and are configured to wipe rainwater from the windshield 29.

FIG. 2 is an exploded perspective view of the frame front bulk reinforcing plate 22 and the frame front bulk inner 21 to which the outer pivot portion 3 of the wiper module 1 is attached. The frame front bulk separates the vehicle compartment and the engine room, and is provided on both sides of the bulk head 24 where the wiper module 1 is disposed. The frame front bulk includes a frame front bulk inner 21 forming an inner wall, a reinforcing plate 22 connected to a horizontal flange 21G of the frame front bulk inner 21 to form an upper wall, and a flange portion of the reinforcing plate 22. A closed section is formed by a frame front bulk outer (not shown) that is connected to form an outer wall, and a bulk head (not shown) that is joined to the frame front bulk inner 21 and the outer to form a bottom wall. .

The reinforcing plate 22 includes a horizontal portion 22G forming the upper wall of the frame front bulk, a connecting flange for connecting to the frame front bulk outer, and the outer pivot portion 3.
And a step portion 22C where the front and rear mounting portions of the holder bracket are mounted. Horizontal part 22
G not only forms the upper wall of the frame front bulk, but also functions as a mounting member for the hood hinge,
It is configured to be thicker than the front wall 24A of the bulkhead. Bolt holes 22E and 22F through which hinge mounting bolts are inserted are provided in the horizontal portion 22G, and mounting holes 22A and 22B serving as mounting points A and B are formed in the step 22C.

The frame front bulk inner 21 is formed by a vertical wall forming the inner wall of the frame front bulk, a horizontal flange 21G extending outward from the upper end of the vertical wall, and a joining flange joined to the bulkhead. . The horizontal flange 21G has a function as a reinforcing member of a hood hinge mounting portion, and is provided with bolt holes 21E and 21F through which hinge mounting bolts are inserted, and bolts 22E and 22F of the reinforcing plate 22 and bolts of the horizontal flange 21G. Hole 21
E, 21F, the hinge mounting bolts are inserted into the frame front bulk inner 21 and the reinforcing plate 22.
And can be combined. Thus, the frame front bulk inner 21 can make the horizontal flange 21G shallow because the reinforcing plate 22 to which the outer pivot portion 3 is attached also forms the upper wall of the frame front bulk.
Formability can be improved, and the cost can be reduced because the relatively thick reinforcing plate 22 as the hood hinge attachment member is used as the upper wall of the frame front bulk. Further, since the attachment points A and B before and after the holder bracket of the outer pivot portion 3 are set on the thick reinforcing plate 22, the rigidity of the attachment portion can be improved, and the wiper arm by wiping the glass when the wiper is operated. It is possible to receive the reaction force from the vehicle stably. Furthermore, compared to the conventional structure where the mounting point is set separately,
The mounting position accuracy is improved, and the number of parts can be reduced.

FIG. 3 is a perspective view and a sectional view of the vicinity of a bridge plate 23 which is a substantially central portion of the bulkhead 24 to which the inner pivot portion 4 of the wiper module 1 is attached. Details of this portion can be clearly understood with reference to FIG. 4 which is an enlarged cross-sectional view taken along the line AA of FIG. The vehicle has a bulkhead that divides a vehicle compartment and an engine room and has an opening above, and a wiper module in which a drive motor and a link mechanism disposed in the bulkhead are integrally attached to a wiper frame. A wiper module mounting portion structure for mounting an inner pivot portion located inward in the vehicle width direction of the two pivot portions provided in the vehicle width direction of the wiper module to the bulkhead, wherein the inner pivot portion has a vehicle width; It is attached to the bulkhead via a bridge plate provided in at least one direction to prevent the opening from opening. More specifically, when the mounting portion of the second pivot holder 12, which is the inner pivot portion of the wiper module 1, is mounted on the vehicle body at two points (mounting points C and D), the upper opening of the bulkhead 24 is prevented from opening. Front wall 24A, rear wall 24B
(In the example of FIG. 4, the bridge plate 23 is attached to a bridge plate 23 that is stretched and fixed for reinforcement between the duct upper 26 and the front wall of the duct upper 26.) The bridge plate 23 is attached to the front wall 2A provided above the front wall 24A of the bulkhead 24.
3A, a rear wall 23B attached to the upper surface of the rear wall 24B of the bulkhead 24, and a bridge bracket 23E connecting them.

As can be understood from FIGS. 3A and 4, mounting holes 23 through which mounting portions 4B of the second pivot holder 12 are mounted are formed in the front wall 23A of the bridge plate 23.
C is bored, and the mounting portion 4B of the second pivot holder 12 is fixed to the front inclined portion above the bulkhead front wall 24A from above the bridge plate 23 via the mounting hole 23C. A mounting hole 23D for mounting the mounting portion 4A of the second pivot holder 12 is formed in the bridge bracket 23E of the bridge plate 23. 2nd pivot holder 1
The second mounting portion D is fixed from above the bridge plate 23. Therefore, by fixing the mounting portion to the front wall 24A of the bulkhead via the bridge plate 23, the mounting point C can be stiffened without impairing the effect of preventing the upper opening from opening, and a reinforcing member for mounting is provided. This eliminates the need and reduces the number of parts. Also, the mounting portion 4A of the second pivot holder 12 of the inner pivot bracket 4,
By mounting the 4B from above the bridge plate 23, there is no need to mount the bridge plate under the bridge plate 23 as in the conventional case, and the outfitting workability is improved. Further, since the mounting points of the inner pivot portion 4 are provided at two points before and after the same member, the operation stability of the wiper module 1 can be improved. In FIG. 4, reference numeral 25 indicates a cowl panel, 27 indicates a hood, and 28 indicates a seal rubber in an engine chamber.
The closed space defined by 4 and duct upper 26 forms an air duct.

The embodiments of the present invention have been described above. However, within the scope of the present invention, the drive motor of the wiper module, the configuration of the link mechanism, the shapes of the frame front bulk, the bulkhead, the bridge plate, and the like are described. Can be appropriately selected.

[0016]

As described above in detail, according to the present invention, the bulkhead for partitioning the cabin from the engine room, the drive motor and the link mechanism provided in the bulkhead are integrally formed. A wiper module attached to the wiper frame, and an outer pivot portion, which is located outward of the vehicle width direction, of two pivot portions provided in the vehicle width direction of the wiper module, In a wiper module mounting structure for mounting on a frame front bulk having a closed cross section extending in the front-rear direction, the frame front bulk includes at least a frame front bulk inner forming an inner wall, and an upper wall coupled to the frame front bulk inner. A reinforcing plate to be formed, and wherein the outer pivot portion is attached to the reinforcing plate, thereby forming a frame front. Can form a bulk of the upper wall in the reinforcement plate for mounting the outer pivot portion, it is possible to improve the moldability of the frame front bulk inner.

Further, in the present invention, the outer pivot portion is attached to the reinforcing plate at at least two points in the front-rear direction, so that the front and rear two points are attached to the reinforcing plate having a greater thickness than the bulkhead front wall, that is, the frame front bulk. Therefore, the strength of supporting the wiper module can be improved, vibration and noise due to the reaction force transmitted through the wiper arm when wiping the wiper can be suppressed, and two attachment portions of the outer pivot portion are provided on the same reinforcing plate. , The mounting position accuracy is also improved. Further, according to the present invention, since the hood hinge of the hood covering the engine room is attached to the reinforcing plate, the hood hinge is attached to the reinforcing plate for attaching the wiper module, without requiring a separate reinforcing plate.
The number of parts can be reduced.

Further, according to the present invention, a bulkhead having an opening at an upper portion, which partitions a vehicle compartment and an engine room, and a drive motor and a link mechanism disposed in the bulkhead are integrally attached to a wiper frame. A wiper module, and an inner pivot portion located inward in the vehicle width direction among two pivot portions provided in the vehicle width direction of the wiper module, and attached to the bulkhead. The inner pivot portion is attached to the bulkhead via a bridge plate for preventing the opening of the opening provided in at least one position in the vehicle width direction, so that the inner pivot portion is attached to the bridge plate, thereby improving workability. And the number of components can be reduced without requiring a separate reinforcing member. Thus, according to the present invention, there is provided a wiper module mounting portion structure capable of improving the formability of the front frame bulk, improving the rigidity of the wiper module mounting portion, and improving the mounting workability.

[Brief description of the drawings]

FIG. 1A is a perspective view of one embodiment of a wiper mounting portion structure according to the present invention, and FIG.
(B) is a plan view of the wiper module.

FIG. 2 is an exploded perspective view of the vicinity of a reinforcing plate to which an outer pivot portion of the wiper module is attached.

3A and 3B are a perspective view and a cross-sectional view of the vicinity of a bridge plate which is a substantially central portion of a bulkhead to which an inner pivot portion of the wiper module is attached.

FIG. 4 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 5 is a perspective view of a conventional wiper mounting portion structure to which a wiper module is mounted.

FIG. 6 is an exploded perspective view of the vicinity of a conventional reinforcing plate to which an outer pivot portion of the wiper module is attached.

FIG. 7 is a perspective view of the vicinity of a conventional bridge plate to which an inner pivot portion of the wiper module is attached and a sectional view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wiper module 2 Drive motor 3 Outer pivot part 4 Inner pivot part 5 Wiper frame 6 Second rod 7 Third lever 8 First rod 8A First lever 9 Second lever 10 First pivot holder 11 First pivot shaft 12 Second Pivot holder 13 Second pivot shaft 16 Mounting hole 16A First mounting hole (Mounting point A) 16B Second mounting hole (Mounting point B) 16C Third mounting hole (Mounting point C) 16D Fourth mounting hole (Mounting point D) 17 First Wiper Arm 18 Second Wiper Arm 21 Frame Front Bulk Inner 22 Reinforcement Plate 23 Bridge Plate 24 Bulkhead 24A Bulkhead Front Wall 25 Cowl Panel

Claims (4)

[Claims] A bulkhead defining a compartment and an engine compartment; and a wiper module having a drive motor and a link mechanism disposed in the bulkhead integrally attached to a wiper frame. Of the two pivot portions provided in the vehicle width direction of the wiper module, the outer pivot portion located on the outer side in the vehicle width direction is attached to both sides of the bulkhead to a frame front bulk having a closed cross-sectional shape extending in the vehicle longitudinal direction. In the structure of the wiper module mounting part,
The frame front bulk has at least a frame front bulk inner forming an inner wall, and a reinforcing plate combined with the frame front bulk inner to form an upper wall, and the outer pivot portion is attached to the reinforcing plate. Characterized wiper module mounting structure. 2. The wiper module attachment structure according to claim 1, wherein the outer pivot portion is attached to the reinforcing plate at at least two points in the front-rear direction. 3. The wiper module mounting part structure according to claim 1, wherein a hood hinge of a hood covering an engine room is mounted on the reinforcing plate. 4. A wiper in which a bulkhead defining an interior of the vehicle and having an opening above and a drive motor and a link mechanism disposed in the bulkhead are integrally attached to a wiper frame. A wiper module mounting part structure for mounting, to the bulkhead, an inner pivot part located inward in the vehicle width direction among two pivot parts provided in the vehicle width direction of the wiper module. The pivot is at least one in the vehicle width direction.
A wiper module mounting structure, wherein the wiper module mounting structure is mounted on the bulkhead via a bridge plate for preventing the opening of the opening from being provided.