JP2012006543A - Bolt holding structure of wiper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bolt holding structure of a wiper device capable of improving the assembly work efficiency of the wiper device.SOLUTION: In a wiper device 1, the rotation of a motor 2 is converted into the reciprocal turning motions of wiper pivots 3, 4 arranged on both sides in the vehicle width direction via a link mechanism 5, and resin-made water receivers 10, 11 are mounted around the wiper pivots 3, 4. A bolt holding part for temporarily holding a bolt 14 is formed on the water receiver 10 as a holding structure of the bolt 14 for mounting the wiper device 1 on a vehicle body. The bolt holding part is formed at the front end position of the water receiver 10. Further, the bolt holding part is formed in the water receiver 10 on a vehicle side.

Description

  The present invention relates to a bolt holding structure for attaching a wiper device to a vehicle body.

  As shown in the perspective view of FIG. 5, the wiper device for wiping raindrops that block the vehicle's field of view in rainy weather is arranged on both sides in the vehicle width direction as shown in the perspective view of FIG. The wiper pivots 3 and 4 include a link mechanism 5 that converts the reciprocating motion of the wiper pivots 3 and 4, and the wiper device 1 is attached to the vehicle body by bolting at three locations.

  By the way, the assembly work of the wiper device to the vehicle body at the factory has been a problem that the workability is poor because the operator holds the wiper device and the bolt and the bolt tightening tool in their hands.

  Therefore, Patent Document 1 proposes a retaining structure for the mounting bolt as shown in FIGS.

  That is, FIG. 8 is a perspective view of the setting rubber and the collar, and FIG. 9 is a side sectional view showing a tightening and fixing structure with a mounting bolt using the setting rubber and the collar, and a through hole 115a formed at the center of the setting rubber 115. On the inner wall, a projection 115b that is long in the axial direction protrudes toward the axis. In addition, a notch 116a is formed by being cut out in the axial direction at a portion corresponding to the projection 115b of the setting rubber 115 of the collar 116 inserted into the through hole 115a of the setting rubber 115.

  Thus, in order to fasten and fix the casing of the wiper device (not shown) to the vehicle body with the mounting bolt 114, the collar 116 is inserted into the through hole 115a of the setting rubber 115 as shown in FIG. The mounting bolt 114 to be inserted is fastened to the vehicle body. At this time, the notched portion 116 a of the collar 116 is passed through to project the projecting portion 115 b of the setting rubber 115 into the through hole 115 a, and the projecting portion 115 b contacts the mounting bolt 114. This prevents the mounting bolt 114 from coming off.

Japanese Utility Model Publication No. 6-013599

  By the way, as shown in FIG. 5, the wiper device 1 has one place near the left and right wiper pivots 3 and 4 (points A and B in the figure) and one place near the central motor 2 (point C in the figure). A total of three locations are attached to the vehicle body by bolt tightening. However, since high positional accuracy is required at fixed locations near the wiper pivots 3 and 4, the diameter of the bolt 14 and the diameter of the bolt 14 are shown in these locations as shown in FIG. Bolt fixing holes (collar 16) having substantially the same diameter are formed. For this reason, when assembling the wiper device 1 at the factory, as shown in FIG. 6, a projection 16a is projected from the collar 16 (or bush 15) in the axial direction, and this projection 16a is brought into contact with the bolt 14. The bolt 14 can be temporarily held.

  However, the fixed position (point C in FIG. 5) near the central motor 2 ensures the degree of freedom of the tightening position because it is necessary to cope with variations in manufacturing position accuracy of the mounting location of the vehicle body. As shown in FIG. 7, the diameter of the bolt fixing hole (collar 16) formed at this location must be relatively large with respect to the diameter of the bolt 14. For this reason, the temporary holding structure of the bolt 14 as shown in FIG.

  Therefore, when assembling the wiper device 1 at the factory, an operator conventionally has the wiper device 1 in which the bolts 14 are temporarily held at the left and right positions, one bolt 14 for fixing the center, and three parts of the tool. There was a problem that it was necessary to assemble and workability was bad. Alternatively, after the wiper device 1 is temporarily fastened and fixed to the vehicle body with the two temporarily held bolts 14, an assembly operation is required to take one bolt 14 for central fixing to another place. In any case, there was a problem that workability was poor.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a bolt holding structure of a wiper device capable of improving the workability of the wiper device.

  In order to achieve the above object, the invention according to claim 1 converts the rotation of the motor into a reciprocating rotational movement of wiper pivots arranged on both sides in the vehicle width direction via link mechanisms, and around the wiper pivots. A bolt holding structure for temporarily holding the bolt is formed in the water receiver as a bolt holding structure for attaching a wiper device configured by attaching a resin water receiver to the vehicle body. .

  According to a second aspect of the present invention, in the first aspect of the present invention, the bolt holding portion is formed at a front end position of the water receiver.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the bolt holding portion is formed in a water receiver on the vehicle side portion side.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the bolt holding portion temporarily holds a bolt for attaching the vicinity of the motor of the wiper device to a vehicle body.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the bolt holding portion is formed by a notched circular hole.

  According to the first aspect of the present invention, since the bolt inserted into the large-diameter bolt fixing hole can be temporarily held by the bolt holding portion formed in the water receiver, the wiper device is assembled at the factory. All the bolts can be temporarily held in the wiper device, so that the workability of assembling the wiper device using the bolts to the vehicle body is improved and the working efficiency is improved. Specifically, after tightening the bolts temporarily held in the bolt fixing holes near the left and right wiper pivots and attaching the two locations of the wiper device, remove the bolts temporarily held in the bolt holders of the water receiver, This bolt can be tightened by passing it through a large-diameter bolt fixing hole near the motor.

  Therefore, according to the present invention, the bolt can be temporarily held in the wiper device without requiring a dedicated part for temporary holding, and the bolt holding portion is formed in the resin water receiver, so that the elasticity of the water receiver is Therefore, the bolts can be easily attached and detached, and the workability of assembling the wiper device to the vehicle body is improved.

  According to the second aspect of the present invention, since the bolt holding portion is formed at the front end position of the water receiver, the bolt holding portion can be formed in the water receiver without impairing the function of the water receiver.

  According to the invention described in claim 3, since the bolt holding portion is formed in the water receiver on the side of the vehicle close to the worker, the bolt can be temporarily held at a position that is easy for the worker to take. The work can be carried out without moving, and the workability of assembling the wiper device to the vehicle body is further enhanced. Further, since the bolt holding portion is formed at a position that is easy for the operator to see, it is possible to prevent forgetting to tighten the bolt.

  According to the fourth aspect of the present invention, the bolt for attaching the vicinity of the motor of the wiper device to the vehicle body is inserted into the large-diameter bolt fixing hole that cannot be temporarily held, and the bolt is formed in the water receiver. Since all the bolts including this bolt can be temporarily held in the wiper device, the bolt that is temporarily held in the water receptacle and needs to be attached / detached is finally tightened. Therefore, when removing the bolt from the water receiver, the wiper device is attached to the vehicle body with the other bolt, and the assembling workability can be improved.

  According to the invention described in claim 5, by forming a notched circular hole having a simple shape in the water receptacle made of resin, the bolt can be easily detached from the notched circular hole by utilizing the elasticity of the water receptacle. Therefore, the workability of assembling the wiper device to the vehicle body is improved.

It is a perspective view of a wiper device provided with the bolt maintenance structure concerning the present invention. It is a fragmentary top view which shows the volt | bolt holding | maintenance part formed in the water receiver of a wiper apparatus provided with the volt | bolt holding structure which concerns on this invention. It is a fragmentary top view which shows the state by which the volt | bolt was temporarily hold | maintained at the volt | bolt holding | maintenance part formed in the water receiver of the wiper apparatus provided with the volt | bolt holding structure which concerns on this invention. It is a fragmentary perspective view which shows the state in which the volt | bolt was temporarily hold | maintained at the volt | bolt holding | maintenance part formed in the water receiver of the wiper apparatus provided with the volt | bolt holding structure which concerns on this invention. It is a perspective view of a wiper device provided with the conventional bolt holding structure. It is a sectional side view which shows the fastening structure of the wiper pivot vicinity of a wiper apparatus. It is side sectional drawing which shows the clamping structure of the motor vicinity of a wiper apparatus. It is a perspective view of a setting rubber and a collar in the bolt holding structure proposed in Patent Document 1. It is a sectional side view which shows the volt | bolt holding structure proposed in patent document 1. FIG. .

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a wiper device provided with a bolt holding structure according to the present invention, FIG. 2 is a partial plan view showing a bolt holding part formed on a water receiver, and FIG. 3 is a bolt on the bolt holding part formed on the water receiver. FIG. 4 is a partial perspective view showing a state in which is temporarily held.

  A wiper device (wiper drive device) 1 shown in FIG. 1 is for wiping raindrops that adhere to the front window of a vehicle and block the field of view in the rain, and is arranged in the vehicle width direction with a motor 2 as a drive source. The left and right wiper pivots 3 and 4 and the link mechanism 5 that converts the rotation of the motor 2 into the reciprocating rotational movement of the left and right wiper pivots 3 and 4 are assembled to the frame 6. The wiper device 1 is disposed in the cowl box of the vehicle so that the left and right wiper pivots 3 and 4 protrude from the cowl top garnish covering the cowl box through a pivot hole formed in the cowl top garnish. ing.

  The motor 2 is disposed in the middle of the left and right wiper pivots 3 and 4, and the rotation of the motor 2 is decelerated by the reduction gear mechanism 7 and its direction is changed. In addition, wiper arms (not shown) to which wiper blades that slide on the wiping surface of the front window are attached are screwed to the left and right wiper pivots 3 and 4, respectively. Each end of a substantially horizontal pivot arm 8, 9 is bound to each other. Further, around the left and right wiper pivots 3 and 4, water entering from a gap between the pivot hole (not shown) formed in the vehicle body and the wiper pivots 3 and 4 is received so as not to reach the electrical components such as the motor 2. Resin dish-shaped water receptacles 10 and 11 for flowing are respectively attached. The water receivers 10 and 11 are attached to the wiper pivots 3 and 4 disposed obliquely substantially vertically, and a flange is erected from the peripheral edge except the lower part toward the cowl top garnish side so that the received water does not escape. Has been.

  By the way, the rotation of the motor 2 is converted into a reciprocating swinging motion of a motor arm (not shown) via the reduction gear mechanism 7, and the end of the pivot arm 9 on one side (right side in FIG. 1) of this motor arm. The ends of the pivot arm 9 and the other (left side in FIG. 1) pivot arm 8 are connected to each other by a rod-shaped second link 13. The first and second links 12 and 13 and the left and right pivot arms 8 and 9 constitute the link mechanism 5.

  Thus, the wiper device 1 configured as described above is provided in the vicinity of the left and right wiper pivots 3 and 4 at both ends of the frame 6 in the vehicle width direction (points A and B in the drawing) and the vicinity of the motor 2. A total of three locations (point C in the figure) in the center are tightened and fixed by bolts 14 and assembled to the vehicle body. Here, although not shown, a bolt fixing hole having a diameter substantially the same as the bolt 14 is formed as a reference hole at a point A of the frame 6, and a long hole bolt fixing as a one-way escape hole is formed at the B point. A hole is formed. Further, a bolt fixing hole having a diameter larger than the outer diameter of the bolt 14 (larger than the bolt fixing holes at points A and B) is formed as an omnidirectional relief hole at a point C near the motor 2 of the frame 6. Has been. As shown in FIGS. 6 and 7, bushes 15, which are elastic bodies, are fitted in bolt fixing holes formed at points A, B, and C of the frame 6. The wiper device 1 is attached to the vehicle body via the elastic body by inserting the made collars 16 and tightening the bolts 14 respectively inserted into the collars 16 at points A, B, and C of the frame 6.

  Therefore, when the wiper device 1 is assembled at the factory, the bolts 14 are temporarily held (partially assembled) at the bolt fixing holes of the wiper device 1 by using the holding structure shown in FIG. The two bolts A and B can be fastened and fixed with good workability by tightening the temporarily held bolt 14 as it is. It should be noted that the point A serving as the reference hole is first tightened, and then the point B formed as a long hole as a one-way relief hole is tightened and fixed so that the distance between the tightening shafts can be adjusted.

  However, at the point C of the frame 6, the bolt fixing hole (inner diameter of the collar 16) needs to be relatively larger than the outer diameter of the bolt 14 as shown in FIG. As described above, the bolt 14 cannot be temporarily held by the structure.

  Therefore, in the present embodiment, as shown in FIG. 2, a bolt holding portion 17 is formed at the front end position (lower portion where no flange is formed) of one water receiver 10 on the vehicle side portion side (left side in FIG. 1). is doing. Here, the bolt holding portion 17 is formed by a notched circular hole having a slightly smaller diameter than the outer diameter of the shaft portion (screw portion) of the bolt 14, and the opening width of the notch is the outer diameter of the shaft portion of the bolt 14. It is formed smaller than. Since the water receiver 10 in which the bolt holding portion 17 is formed is made of resin, the screw portion (shaft portion) of the bolt 14 can be engaged with and disengaged from the bolt holding portion 17 using the elasticity of the water receiver 10. The bolt 14 can be easily attached to and removed from the water receiver 10.

  Thus, when the wiper device 1 is assembled at the factory, as shown in FIGS. 1, 3 and 4, it is formed in the bolt fixing hole in the vicinity of the wiper pivots 3 and 4 and one water receiver 10. The wiper device 1 is carried in with the bolt 14 temporarily held in the bolt holding portion 17, and the points A and B of the wiper device 1 are fixed to the vehicle body by tightening the bolt 14 temporarily held in advance as described above. When the C point is fixed, the bolt 14 temporarily held by one of the water receivers 10 is removed from the water receiver 10 and tightened through the bush 15 and the collar 16 as shown in FIG. Can be fixed. In this way, the three locations (point A, point B, point C) of the wiper device 1 can be fastened and fixed to the vehicle body by the bolts 14 temporarily held by the wiper device 1.

  As described above, in the present embodiment, the bolt 14 inserted through the large-diameter bolt fixing hole is temporarily held by the bolt holding portion 17 formed in the water receiver 10. At the time of assembly, all the bolts 14 can be temporarily held in the wiper device 1, and the workability of assembling the wiper device 1 using the bolts 14 to the vehicle body is improved, thereby improving work efficiency. Specifically, the bolts 14 temporarily held by the holding structure shown in FIG. 6 are tightened in the bolt fixing holes near the left and right wiper pivots 3 and 4 as they are, and the wiper device 1 is placed at two locations (points A and B in FIG. 1). After attaching the point, the bolt 14 temporarily held by the bolt holding part 17 of the water receiver 10 is removed, and this bolt 14 is connected to the motor 2 (point C in FIG. 1) with a large-diameter bolt fixing hole (FIG. 7). Since this can be tightened through the collar 16) shown in FIG. 6, the workability of assembling the wiper device 1 to the vehicle body is improved and the working efficiency is improved.

  Therefore, according to the present invention, the bolt 14 can be temporarily held in the wiper device 1 without requiring a dedicated part for temporary holding, and the bolt holding portion 17 is formed in the resin water receiver 10, Due to the elasticity of the water receiver 10, the bolts 14 can be easily attached and detached, and the workability of assembling the wiper device 1 to the vehicle body is enhanced.

  Further, according to the present embodiment, since the bolt holding portion 17 is formed at the front end position of the water receiver 10, the water receiver 10 has a good packing shape without impairing the function of the water receiver 10, such as notching the flange. The bolt holding portion 17 that can hold the bolt can be easily formed.

  Furthermore, according to the present embodiment, since the bolt holding portion 17 is formed in the water receiver 10 on the side of the vehicle close to the worker, the bolt 14 can be temporarily held at a position that can be easily taken by the worker. The person can proceed without moving the place, and the workability of assembling the wiper device 1 to the vehicle body is further enhanced. And since the bolt holding | maintenance part 17 was formed in the position where an operator is easy to see, the bolt 14 can be prevented from forgetting to tighten.

  In addition, in this embodiment, a notch hole having a simple shape that is easy to form as the bolt holding portion 17 is formed in the resin water receiver 10, and the bolt 14 is notched using the elasticity of the water receiver 10. Since it can be easily attached to and detached from the bolt holding portion 17 formed of a circular hole, an effect of further improving the workability of assembling the wiper device 1 to the vehicle body can be obtained.

  In the above, the embodiment in which the present invention is applied to the wiper device for wiping the front window has been described. However, the present invention is also applicable to a wiper device for wiping the rear window. Of course.

DESCRIPTION OF SYMBOLS 1 Wiper apparatus 2 Motor 3, 4 Wiper pivot 5 Link mechanism 6 Frame 10, 11 Water receiver 14 Bolt 15 Bush 16 Collar 17 Bolt holding part

Claims (5)

A wiper device configured to convert the rotation of the motor into a reciprocating rotational movement of a wiper pivot disposed on both sides in the vehicle width direction via a link mechanism, and to attach a resin water receiver around each wiper pivot. Is a bolt holding structure for attaching to the vehicle body,
A bolt holding structure for a wiper device, wherein a bolt holding portion for temporarily holding a bolt is formed in the water receiver.   The bolt holding structure of the wiper device according to claim 1, wherein the bolt holding portion is formed at a front end position of the water receiver.   The bolt holding structure for a wiper device according to claim 1 or 2, wherein the bolt holding portion is formed in a water receiver on the side of the vehicle.   The bolt holding structure for a wiper device according to any one of claims 1 to 3, wherein the bolt holding portion temporarily holds a bolt that attaches the vicinity of the motor of the wiper device to a vehicle body. The bolt holding structure for a wiper device according to any one of claims 1 to 4, wherein the bolt holding portion is formed by a notched circular hole.

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