JP2001114075A - Wiper device and its mounting method - Google Patents

Abstract

(57) [Problem] To provide a rear wiper device capable of preventing a wiper arm and a wiper blade from rotating beyond a predetermined wiper stop position when a hatch panel is open. In a wiper stop position, a stopper piece (38A) extending from a driven plate (18) of a wiper pivot (8) engages a stopper portion (37) provided on a pivot bearing (9) to determine a rotation stop position of the wiper pivot (8). When the wiper arm 5 is opened and closed, the wiper arm and the wiper blade can be prevented from moving downward from the wiper stop position below the lower edge of the hatch panel 5 due to inertia force or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiper device mounted on a vehicle body of an automobile, and more particularly to a rear wiper device mounted on a hatch panel which is openably and closably mounted on an opening of a back door body, and a method of mounting the same. .

[0002]

2. Description of the Related Art As a rear wiper device provided on a hatch panel of a back door, a wiper pivot and a wiper motor unit are separated, and the wiper pivot is mounted on a lower edge portion, which is a free end of the hatch panel, while a wiper motor unit is mounted. It is known that the hatch panel is attached to the lower edge of the opening of the back door body to reduce the weight of the hatch panel, improve the opening and closing operability, and eliminate the need for harness wiring on the hatch panel side. Have been.

As described above, since the wiper pivot and the wiper motor unit are separately mounted on the hatch panel side and the back door body side, the drive disk having the engagement hole at the motor output shaft end of the wiper motor unit is fixed. On the other hand, a driven plate having an engagement pin that engages with and disengages from the engagement hole of the drive disk is fixed to the indoor end of the wiper pivot, the hatch panel is closed, and the engagement pin and the engagement hole are fixed. Is configured to be able to transmit the driving force of the wiper motor unit to the wiper pivot.

[0004]

The wiper arm is provided with a spring for urging the wiper blade toward the surface to be wiped, and when the wiper is stopped, the wiper blade is fixed on the surface to be wiped by the spring force of the spring. ,
As described above, the wiper pivot and the wiper motor unit are separately mounted on the hatch panel side and the back door body side, so when the hatch panel is opened, the wiper motor unit's rotation braking function of the wiper pivot is For this reason, the wiper arm and the wiper blade may be deviated from an appropriate wiper stop position due to inertial force or the like due to vibration when the hatch panel is opened and closed.

Accordingly, the present invention provides a wiper device and a wiper device which can prevent the wiper arm and the wiper blade from rotating beyond a predetermined wiper stop position with a simple configuration when the hatch panel is open, and the wiper device is easily provided. And an attachment method capable of being attached.

[0006]

According to the first aspect of the present invention, a wiper motor unit is attached to one edge of an opening provided in a vehicle body via a bracket, and a motor output shaft of the wiper motor unit is provided. While a drive disk having an engagement hole or an engagement pin at an end is fixedly mounted, a wiper pivot is attached to a hatch panel attached to the other edge of the opening by a hinge member so as to be openable and closable. A driven plate having an engaging hole or an engaging hole that engages with or disengages from the engaging hole or the engaging pin of the drive disk is fixed to an end of the drive disk, and a hatch panel is closed to provide the drive disk and the driven plate with the driven plate. In a wiper device capable of transmitting a driving force of a wiper motor unit to a wiper pivot by engaging an engagement pin and an engagement hole, On the pivot bearing that supports the wiper pivot and protrudes toward the indoor side, a stopper for rotation control protrudes toward the indoor side at a position offset from the pivot shaft, while the driven plate engages with the stopper. In addition, it is characterized in that at least a stopper piece for regulating the wiper stop position is extended.

According to a second aspect of the present invention, the engagement hole and the engagement pin according to the first aspect are provided on the diameter line of the drive disk parallel to the rotation surface of the hatch panel at the wiper stop position. In addition, the engaging hole is formed as an elongated hole parallel to the rotation surface of the hatch panel.

[0008] In the invention of claim 3, claims 1 and 2
Is characterized in that it is movably mounted in its axial direction and is urged in a protruding direction by urging means.

According to the invention of claim 4, claims 1 to 3 are provided.
The bracket for mounting the wiper motor unit according to the above is composed of a vehicle body side bracket attached to the vehicle body, and a motor side bracket attached to the wiper motor unit and fixed to the vehicle body side bracket, between these two brackets And a mounting adjustment means for axially aligning the motor output shaft of the wiper motor unit with respect to the wiper pivot.

According to a fifth aspect of the present invention, the mounting adjustment means according to the fourth aspect includes a bolt and a nut for fastening and fixing the vehicle body side bracket and the motor side bracket at a plurality of locations, and a vehicle body side bracket or a motor side. It is characterized in that one of the brackets includes a bolt insertion hole formed with a diameter larger than the bolt outer diameter.

According to a sixth aspect of the present invention, an annular elastic mount member for supporting the motor-side bracket on the vehicle-body-side bracket in a vibration-proof manner is fitted and fixed to the large-diameter bolt insertion hole according to the fifth aspect. It is characterized by doing.

According to the present invention, a wiper motor unit is attached to one edge of an opening provided in the vehicle body via a bracket, and an engagement hole or an engagement hole is provided at a motor output shaft end of the wiper motor unit. While a drive disk having an engagement pin is fixedly mounted, a wiper pivot is mounted on a hatch panel which is attached to the other edge of the opening so as to be openable and closable by a hinge member, and the drive is mounted on an indoor end of the wiper pivot. A driven plate having an engaging pin or an engaging hole which engages with or disengages from the engaging hole or the engaging pin of the disk is fixed, and the hatch panel is closed to close the drive disk and the engaging pin and the engaging hole provided on the driven plate. The wiper motor unit can be transmitted to the wiper pivot by engaging the wiper motor unit. Attach the par pivot in advance hatch panels, fitted with Sotohama possible aligning jig wiper pivots concentrically with the drive disc to the driven plate,
By closing and moving the hatch panel and moving and adjusting the wiper motor unit on the vehicle body side to a position where the alignment jig can be fitted onto the drive disk, and by fitting these alignment jigs and the drive disk, The wiper motor unit is fixed by aligning the motor output shaft with respect to the wiper pivot.

According to the eighth aspect of the present invention, the centering jig according to the seventh aspect is formed in a cap shape which can be externally fitted to a drive disk by a base plate and a flange formed on a peripheral edge thereof. Is provided with an engaging pin insertion hole and a means for engaging with a driven plate on the back surface thereof.

According to a ninth aspect of the present invention, the flange of the aligning jig according to the eighth aspect is provided with a plurality of vertical slits so as to be elastically deformable in a radial direction. And

[0015] In the invention of claim 10, claims 7 to
9. The bracket for mounting the wiper motor unit according to 9 is composed of a vehicle body side bracket mounted on the vehicle body and a motor side bracket mounted on the wiper motor unit and fixed to the vehicle body side bracket. A mounting adjustment means for axially aligning the motor output shaft of the wiper motor unit with respect to the wiper pivot.

According to the eleventh aspect of the present invention, in the tenth aspect,
The bolts and nuts for fastening and fixing the vehicle body side bracket and the motor side bracket at a plurality of locations, and one of the vehicle body side bracket and the motor side bracket is formed to have a larger diameter than the bolt outer diameter. And a bolt insertion hole.

[0017]

According to the first aspect of the present invention, at the wiper stop position, the stopper piece extending on the driven plate of the wiper pivot engages with the stopper portion provided on the pivot bearing to stop the rotation of the wiper pivot. Is determined, it is possible to reliably prevent the wiper arm and the wiper blade from deviating from the wiper stop position due to inertial force or the like when the hatch panel is opened and closed, and it is possible to enhance the quality and reliability.

According to the invention of claim 2, according to claim 1,
In addition to the effects of the invention, the engagement hole or the engagement pin of the drive disk on the wiper motor unit side and the engagement pin or the engagement hole of the driven plate on the wiper pivot side rotate the hatch panel at the wiper stop position. It is provided on the vertical diameter line segment of the drive disk parallel to the surface, and the engaging hole is formed as an elongated hole parallel to the turning surface of the hatch panel, so that it is engaged with these engaging holes. There is no gap in the disk rotation direction between the mating pin and the wiper pivot can be properly rotated by synchronizing the rotations of the drive disk and the driven plate without causing rotational play.

Further, even if the movement trajectory of the engaging pin due to the opening and closing of the hatch panel is displaced in the vertical direction due to a mounting error or the like, this displacement is eliminated by the long engaging hole parallel to the rotation surface of the hatch panel. As a result, the interference between the engagement pin and the edge of the engagement hole can be reliably avoided.

According to the third aspect of the present invention, in addition to the effects of the first and second aspects of the invention, when the hatch panel is opened, the drive disk and the driven plate are shifted in the rotational direction. Even if the engagement hole and the engagement pin are displaced in the disk rotation direction, the engagement pin end elastically contacts the drive disk surface when the hatch panel is closed, thereby absorbing the abutment load and hindering the hatch panel closing movement. And when the wiper is driven, the drive pin rotates, and as soon as the engagement hole reaches the engagement pin position, the engagement pin falls into the engagement hole and automatically engages both. Power transmission to the wiper pivot can be properly performed.

According to the invention of claim 4, according to claim 1,
In addition to the effects of the third to third aspects, the bracket for attaching the wiper motor unit to the vehicle body includes a vehicle body side bracket attached to the vehicle body and a motor side bracket attached to the wiper motor unit and fixed to the vehicle body side bracket. The wiper pivot and the wiper motor unit are attached to the wiper motor unit with respect to the wiper pivot mounted on the hatch panel. Since the center can be easily adjusted, and therefore, the fixing position of the motor-side bracket can be determined with reference to the wiper pivot, the adjustment of the mounting position of the wiper pivot with respect to the hatch panel and / or the adjustment of the wiper motor unit with respect to the vehicle body can be performed. Mounting position Settling is not needed, along with enable easy axis adjustment of the wiper pivot and the motor output shaft,
The mounting workability of the wiper pivot and the wiper motor unit can be further improved.

According to the invention set forth in claim 5, according to claim 4,
In addition to the effects of the invention, the bolt insertion hole of one of the vehicle body side bracket and the motor side bracket is formed to have a diameter larger than the outer diameter of the fixing bolt, so that the bolt in the radial direction with respect to the bolt insertion hole is formed. The mounting adjustment can be easily performed by the movement adjustment, the adjustment operation can be easily performed, and the structure can be simplified, and the cost can be advantageously obtained.

According to the invention described in claim 6, according to claim 5,
In addition to the effects of the invention, vibration of the wiper motor unit can be attenuated by the elastic mount member, so that sound vibration countermeasures can be thoroughly implemented, and quality and reliability can be improved.

According to the seventh aspect of the present invention, when the wiper pivot and the wiper motor unit are attached, the wiper pivot is attached to a predetermined position of the hatch panel in advance, and the driven plate disposed on the vehicle compartment side is provided. The centering jig is mounted concentrically with the wiper pivot, the hatch panel is closed, and the drive disk of the wiper motor unit on the vehicle body is fitted to this centering jig, so that the wiper pivot and motor output Since the shaft and the shaft are aligned in the axial direction, the work of aligning the motor output shaft with respect to the wiper pivot is easy, and the work of mounting the wiper motor unit with the wiper pivot as the mounting reference can be easily performed, and the wiper motor unit can be properly adjusted. Can be mounted in any position.

According to the invention described in claim 8, according to claim 7,
In addition to the effects of the invention, the structure of the aligning jig can be simplified, and furthermore, by inserting the engagement pin insertion hole of the base plate into the engagement pin, the mutual guiding action enables The alignment jig can be used as a guide for properly attaching the alignment jig to the driven plate, and can be easily engaged and fixed to the driven plate by the engagement means on the back surface of the base plate. be able to.

According to the invention of claim 9, according to claim 8,
In addition to the effects of the invention, the centering jig has a flange portion that can be elastically deformed in the radial direction by a plurality of vertical slits, so that the fitting to the drive disk can be performed smoothly,
It can be fitted to the drive disk exactly outside, and the alignment accuracy can be improved.

According to the tenth aspect of the present invention, the bracket on the vehicle body side is fixed to the vehicle body, and the motor-side bracket can be moved and adjusted with respect to the bracket on the vehicle body side by the mounting adjustment means. Alignment work by fitting the jig and the drive disk can be performed even more easily.

Further, since the centering position of the wiper motor unit can be held by the centering jig, the motor side bracket can be easily fixed to the vehicle body side bracket.

Furthermore, since it is not necessary to adjust the position of the wiper pivot unit with respect to the hatch panel and also to adjust the position of the wiper motor unit with respect to the vehicle body, the workability of mounting the wiper pivot and the wiper motor unit can be further improved. .

According to the eleventh aspect of the present invention, in addition to the effect of the tenth aspect, the bolt insertion hole of one of the vehicle body side bracket and the motor side bracket is larger than the outer diameter of the fixing bolt. By forming the large diameter, the mounting adjustment can be easily performed by adjusting the movement of the bolt in the radial direction with respect to the bolt insertion hole, and the adjusting operation can be easily performed and the structure can be simplified.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

In FIG. 9, a back door body 3 as the vehicle body 1 is also mounted on the rear opening 2 of the vehicle body 1 so as to be openable and closable, and an opening 4 provided in a substantially upper half of the back door body 3 is provided. A hatch panel 5 is attached to open and close freely.

The hatch panel 5 is attached to the upper edge of the opening 4 of the back door body 3 as the "other edge" by a hinge member 6 so that it can be opened and closed in the front-rear direction. A wiper pivot 8 of a rear wiper device 7 as a "wiper device" is provided on a lower edge portion as "one edge portion".
Is installed.

Specifically, as shown in FIGS. 1 to 4, the wiper pivot 8 is pivotally supported by a pivot bearing 9 which is inserted and fixed in a pivot mounting hole 5 a provided in the hatch panel 5. Wiper blade 11 at end
Is attached.

The pivot bearing 9 includes a flange 12a provided on the outer edge of the collar 12 fitted in the pivot mounting hole 5a,
With a flange 9 a provided on the pivot bearing 9 sandwiching the edge of the pivot mounting hole 5 a, a nut 14 is provided via a washer 15 to a screw portion 13 provided at an end of the pivot bearing 9 on the outer side of the vehicle. Are screwed together and fixed.

A seal member 16 is interposed on the mounting surface side of the flange 9a of the pivot bearing 9 to ensure sealing properties around the mounting portion of the pivot bearing 9, and the washer 15 and the nut 14 are wipers. It is concealed by a resin cap 17 inserted through the pivot 8.

An engaging pin 1 engaging with and disengaging from an engaging hole 25 formed in a drive disk 24 of the wiper motor unit 22 described later is formed at an end of the pivot bearing 9 projecting toward the indoor side.
The driven plate 18 on which the mounting plate 9 is mounted is fixed.

The engaging pin 19 is movably mounted on the pin holder 20 in the axial direction, and is urged in the projecting direction by an urging means 21 such as a spring disposed in the pin holder 20.

The engagement holes 25 and the engagement pins 19 may be provided on the driven plate 18 and the drive disk 24, respectively.

On the other hand, a wiper motor unit 22 for rotating the wiper pivot 8 is attached to a lower edge portion of the back door body 3 via a bracket 26 at a position corresponding to the wiper pivot 8.

At the end of the motor output shaft 23 of the wiper motor unit 22, a drive disk 24 provided with an engagement hole 25 with which the engagement pin 19 of the driven plate 18 is engaged when the hatch panel 5 is closed. The driving force of the wiper motor unit 22 is transmitted to the wiper pivot 8 via the drive disk 24 and the driven plate 18 by the engagement between the engagement pin 19 and the engagement hole 25, The wiper pivot 8 rotates.

The engaging pin 19 and the engaging hole 25 are moved up and down of the drive disk 24 at the wiper stop position, that is, at the position where the wiper blade 11 stops at the retracted position substantially parallel to the lower edge of the hatch panel 5. And the engaging hole 25 is formed vertically long in the direction of the diameter line O. This diameter line segment O is a hatch panel 5
Are provided in parallel with the turning surface (that is, corresponding to the paper surface in FIG. 1).

On the other hand, the bracket 26 for mounting the wiper motor unit 22 has leg portions 26 on the left and right sides and a lower side.
a through the legs 26a.
A door-side bracket 26A as a “vehicle-side bracket” fastened and fixed to a lower edge portion of the door with a bolt / nut 27;
A motor-side bracket 26B is attached to the wiper motor unit 22 and fixed to the door-side bracket 26A.

The door-side bracket 26A and the motor-side bracket 26B are fastened and fixed by bolts 28 and nuts 29 at the lower central portion and the upper left and right three points.

A mounting adjustment means 30 for aligning the motor output shaft 23 of the wiper motor unit 22 with respect to the wiper pivot 8 in the axial direction is provided between the door-side bracket 27A and the motor-side bracket 26B.
Is provided.

The door-side bracket 26A and the motor-side bracket 26B are provided with bolt insertion holes 31 and 32 for fastening with bolts 28 and nuts 29. In this embodiment, the bolt insertion of the door-side bracket 26A is performed. The hole 31 is formed to have a diameter larger than the outer diameter of the bolt 28 so that the bolt 28 can be moved and adjusted in the radial direction.
The above constitutes the above-mentioned attachment adjusting means 30.

An annular elastic mount member 33 made of rubber, synthetic resin, or the like is fitted and fixed to the large-diameter bolt insertion hole 31, and the elastic mount member 33 is attached to the retainer plate 34 and the motor-side bracket 26B. The motor-side bracket 26B is supported by the elastic mount member 33 on the door-side bracket 26A in a vibration-proof manner.

Between the retainer plate 34 and the motor-side bracket 26B, a collar 35 for defining a compression allowance of the elastic mount member 33 is interposed.

The elastic mounting member 33 has an annular groove 33a formed at the center of the outer peripheral surface thereof, and the annular groove 33a is engaged with and fixed to the edge of the bolt insertion hole 31.
Each bolt insertion hole 31 is provided with a mount member attachment / detachment hole 31a having a diameter larger than the outer diameter of the elastic mount member 33, and the elastic mount member 33 is connected to the bolt insertion hole 31 using the mount member attachment / detachment hole 31a. It is designed to be easily inserted and engaged with the hole edge.

The above-described pivot bearing 9 basically includes a bracket 9 extending laterally from the flange 9a.
b, it is fastened and fixed to the hatch panel 5 by bolts and nuts (not shown) at the bolt insertion holes 9c.
In the present embodiment, a striker 36 that is engaged with and disengaged from a hatch panel lock mechanism (not shown) attached to the lower edge of the opening 4 of the back door body 3 is fixedly fastened to the bracket 9b.

Therefore, the bolt insertion hole 9c is formed to be horizontally long so that the mounting position of the striker 36 in the left and right direction can be adjusted in accordance with the hatch panel lock mechanism.

Here, a stopper portion 37 for restricting rotation is projected from the bracket portion 9b projecting to the side of the pivot bearing 9 toward the indoor side, while the left and right side edges of the driven plate 18 are provided. The stopper piece 38A that engages with the stopper portion 37 and regulates the wiper stop position and the stopper piece 38B that engages with the stopper portion 37 and regulates the wiper forward position in the wiper forward stroke are symmetrical. It has been extended to.

The wiper pivot 8 and the wiper motor unit 22 are mounted as follows.

First, the wiper pivot 8 connects the pivot bearing 9 to the hatch panel 5 via its bracket 9b.
And the nut 9 clamps the nut 9 with the flange 9a and the flange 12a of the collar 12 sandwiching the hole edge of the mounting hole 5a. .

The wiper motor unit 22 temporarily attaches the door-side bracket 26A and the motor-side bracket 26B to the door-side bracket 26A at a predetermined position of the back door main body 3 with the bolts 28 and the nuts 29 temporarily assembled. The nut 27 is securely fastened and fixed.

Then, the motor-side bracket 26B is moved and adjusted by the mounting adjustment means 30 with respect to the door-side bracket 26A, so that the axis of the motor output shaft 23 is aligned with the wiper pivot 8, and the bolts 28, The motor-side bracket 26B is fastened and fixed to the door-side bracket 26A by a nut 29.
The centering jig 40 shown in FIGS. 5 to 8 is used for the centering operation of the wiper pivot 3 and the wiper pivot 8.

The alignment jig 40 is formed of a synthetic resin material, and has a base plate 41 and a flange 42 formed on the periphery thereof.
Thus, the drive disk 24 is formed in a cap shape which can be fitted to the outside.

The base plate 41 has the engaging pins 19, 1
9 is provided with a pair of engagement pin insertion holes 43 through which insertion is engaged, and a relief hole 44 for receiving an end of the wiper pivot 8 slightly protruding from the lower surface side of the driven plate 18 at the center position. Driven plate 1 on the back of 41
8 and a pair of locking hooks 45, 46, 47 as engaging means for engaging with the respective side edges of the stopper pieces 38A, 38B.
It has.

The flange 42 of the alignment jig 40 is
A plurality of vertical slits 48 are provided so as to be elastically deformable in the radial direction.

The alignment jig 40 is mounted on the driven plate 18 at the wiper stop position with the hatch panel 5 opened.
By inserting the engagement pins 19 through the guide plate 3, it is possible to provide a guide for proper attachment to the driven plate 18 by mutual guiding action. When pressed against the driven plate 18, the driven plate 18 and the stopper pieces 38A and 38B pass through the corresponding pair of locking hooks 45 and 46 and 47 to engage with each other, and the locking hook 45 performs lateral positioning. At the same time, the positioning in the vertical direction is performed by the locking hooks 46 and 47, so that the alignment jig 40 can be concentrically attached to the wiper pivot 8.

After the alignment jig 40 is mounted on the driven plate 18 in this manner, the hatch panel 5 is closed and the mounting adjustment means 30 controls the motor-side bracket 26.
B is moved and adjusted to a position where the drive disk 24 can be fitted to the alignment jig 40, and the alignment jig 40 is externally fitted to the drive disk 24.

Since the motor output shaft 23 is automatically aligned with the wiper pivot 8 in the axial direction by the fitting of the alignment jig 40 and the drive disk 24, the mounting position of the wiper motor unit 22 is determined. Bolt 28.
The nut 29 is fully fastened to fix the motor-side bracket 26B to the door-side bracket 26A, and the centering jig 40 is removed from the driven plate 18 to complete the centering and mounting of the wiper motor unit 22.

According to the configuration of the above-described embodiment, at the wiper stop position, the stopper piece 38A extending from the driven plate 18 of the wiper pivot 8 engages with the stopper portion 37 provided on the pivot bearing 9, and the wiper pivot 8 When the hatch panel 5 is opened and closed, the wiper arm 10 and the wiper blade 11 are reliably prevented from moving downward from the lower edge of the hatch panel 5 from the wiper stop position due to inertial force or the like. As a result, quality and reliability can be improved.

Here, according to the present embodiment, the engagement hole 25 of the drive disk 24 on the wiper motor unit 22 side
And the engagement pin 19 of the driven plate 18 on the wiper pivot 8 side is provided on the diameter line O of the drive disk 24 at the wiper stop position, and the engagement hole 25 is provided in the diameter line O direction. Since they are formed as long holes, these engagement holes 25
There is no gap in the disk rotation direction between the drive disk 24 and the engagement pin 19, and therefore, the rotation of the drive disk 24 and the driven plate 18 is synchronized with each other without rotating play so that the wiper pivot 8 can be properly rotated. Thus, the wiper blade 11 can be appropriately wiped within a predetermined setting range, that is, within a wiping range regulated by the engagement between the stopper portion 37 and the stopper pieces 38A and 38B.

Further, even if the movement locus of the engagement pin 19 due to the opening and closing of the hatch panel 5 is displaced in the vertical direction due to a mounting error or the like, the displacement can be tolerated by the engagement hole 25 of the elongated hole. Interference between the mating pin 19 and the edge of the engagement hole 25 can be reliably avoided.

When the hatch panel 5 is open,
Even if the drive disk 24 or the driven plate 18 is moved in the rotation direction and the engagement hole 25 and the engagement pin 19 are displaced in the disk rotation direction, the engagement pin 19 is movable in the axial direction. When the hatch panel 5 is closed, the end of the engaging pin 19 resiliently contacts the surface of the drive disk 24 to absorb the abutment load and to close the hatch panel 5 when the hatch panel 5 is closed. There is no hindrance to the closing movement, and when the wiper is driven, the engagement pin 19 falls into the engagement hole 25 as soon as the engagement hole 25 reaches the position of the engagement pin 19 due to the rotation of the drive disk 24. By automatically engaging the two, the power transmission to the wiper pivot 8 can be properly performed.

As described above, since the wiper pivot 8 and the wiper motor unit 22 are separately mounted on the hatch panel 5 side and the back door main body 3 side, the wiper pivot 8 and the wiper It is necessary to adjust the mounting so that the axis of the motor output shaft 23 of the motor unit 22 is aligned.

On the other hand, in this embodiment, the mounting bracket 26 of the wiper motor unit 22 is a door-side bracket 26 mounted on the lower edge of the opening 4 of the back door body 3.
A, and a motor-side bracket 26B attached to the wiper motor unit 22 and fixed to the door-side bracket 26A, between which the motor output shaft 23 is provided in the axial direction with respect to the wiper pivot 8. Since the attachment adjusting means 30 for alignment is provided, the wiper pivot 8 is attached to the hatch panel 5 and
After the door-side bracket 26A of the bracket 26 is attached to the back door main body 3, the motor-side bracket 26 is attached to the door-side bracket 26A by the attachment adjusting means 30.
By moving and adjusting B, the axis of the motor output shaft 23 with respect to the wiper pivot 8 can be easily adjusted.

Therefore, the fixing position of the motor-side bracket 26 B may be determined with reference to the wiper pivot 8, so that the mounting position of the wiper pivot 8 with respect to the hatch panel 5 is adjusted and / or the wiper motor unit 22 with respect to the back door body 3. The adjustment of the mounting position of the wiper pivot 8 and the motor output shaft 23 can be easily performed, and the workability of mounting the wiper pivot 8 and the wiper motor unit 22 can be improved.

In particular, since the mounting position of the wiper pivot 8 with respect to the hatch panel 5 is greatly related to the wiper wiping performance, adjusting the position of the motor output shaft 23 with respect to the axis of the wiper pivot 8 will reduce the wiper wiping performance. In order to maintain, it should be avoided as much as possible,
When the mounting position of the wiper motor unit 22 is adjusted with respect to the direction, the direction of the mounting seat surface of the door-side bracket 26A is regulated by the shape of the back door 3, and the mounting seat surface whose position can be adjusted in a direction perpendicular to the wiper pivot 8 is adjusted. Considering that it is difficult to secure them, it can be understood that the configuration including the door-side bracket 26A and the motor-side bracket 26B is a configuration that is advantageous for improving the mounting workability of the wiper pivot 8 and the wiper motor unit 22.

In particular, when mounting the wiper pivot 8 and the wiper motor unit 22, the alignment jig 40
The driven plate 1 arranged on the vehicle cabin side of the wiper pivot 8 previously attached to a predetermined position of the hatch panel 5 by using
8, the centering jig 40 is mounted concentrically with the wiper pivot 8, the hatch panel 5 is closed, and the motor side bracket 26B is moved and adjusted as described above to move the drive disk 24 to the centering jig. Since the wiper pivot 8 and the motor output shaft 23 are aligned in the axial direction by being fitted to the tool 40, the work of aligning the motor output shaft 23 with respect to the wiper pivot 8 is easy, and the wiper pivot 8 is attached to the mounting reference. Wiper motor unit 2
2 can be easily performed, and the wiper motor unit 22 can be mounted at an appropriate position.

Since the centering jig 40 is formed in a cap shape which can be externally fitted to the drive disk 24, the structure is simple and easy to handle, and the engaging pin insertion hole 43 of the base plate 41 is formed in the driven plate 18. The centering jig 4 is inserted into and engaged with the engaging pin 19, and is guided by each other.
0 can be used as a guide for properly attaching to the driven plate 18, and can be easily engaged and fixed to the driven plate 18 by the locking hooks 45 to 47 on the back surface of the base plate 41. It can be done easily.

Further, the flange portion 42 of the alignment jig 40
Can be elastically deformed in the radial direction by the plurality of vertical slits 48, so that the fitting to the drive disk 24 can be performed smoothly and the outer disk can be fitted to the drive disk 24 exactly to improve the alignment accuracy. be able to.

On the other hand, the mounting adjustment means 30 provided between the door-side bracket 26A and the motor-side bracket 26B is provided with a bolt 28 and a nut 2 for fastening and fixing the door-side bracket 26A and the motor-side bracket 26B.
9 and a bolt insertion hole 31 provided on the door side bracket 26A and having a diameter larger than the outer diameter of the bolt. At the time of the mounting adjustment, the motor side bracket 26B is formed by the bolt 28 and the nut 29 as described above. Is temporarily assembled to the door-side bracket 26A, and the bolt 28 is connected to the motor-side bracket 26B within the diameter of the bolt insertion hole 31.
In addition, the mounting adjustment can be easily performed by shifting in the radial direction integrally with the above, the adjustment operation can be easily performed, and the structure can be simplified, and the cost can be advantageously obtained.

An annular elastic mount member 33 is fitted and fixed in the bolt insertion hole 31 of the door-side bracket 26A, and the motor-side bracket 26B is supported on the door-side bracket 26A in a vibration-proof manner. The vibration of the unit 22 can be attenuated by the elastic mount member 33 to take thorough measures against sound and vibration, thereby improving the quality and reliability.

In the above-described embodiment, the bolt insertion hole 31 of the door-side bracket 26A for mounting adjustment is formed with a large diameter. On the contrary, the bolt insertion hole 32 of the motor-side bracket 26B is formed with a large diameter. Alternatively, the elastic mount member 33 may be fitted and fixed in the bolt insertion hole 32 of the motor-side bracket 26B.

Further, in the above-described embodiment, the bracket 26 is divided into a door-side bracket 26A and a motor-side bracket 26B in order to improve the mountability of the wiper device 7.
Although a preferred example in which the attachment adjusting means 30 is provided between them is shown, the wiper motor unit 22 having such a non-split type bracket 26 can also be used for the alignment jig 4.
By using 0, the centering work can be easily performed, and the mountability can be improved.

Further, the aligning jig 40 may be mounted on the driven plate in advance when the wiper pivot 8 is delivered, instead of after the wiper pivot 8 is mounted on the hatch panel 5.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view of the arrangement state of the wiper pivot and the wiper motor unit according to the embodiment of the present invention, as viewed obliquely from above.

FIG. 3 is an exploded perspective view of FIG. 2;

FIG. 4 is a plan view of a drive disk.

FIG. 5 is an exploded perspective view showing a relationship between a drive disk, an alignment jig, and a driven plate.

FIG. 6 is a perspective view showing a state where a centering jig is mounted on a driven plate.

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a perspective view of a driven plate.

FIG. 9 is a rear perspective view of a back door type vehicle to which the present invention is applied.

[Explanation of symbols]

 REFERENCE SIGNS LIST 3 back door body (body) 4 opening 5 hatch panel 7 wiper device 8 wiper pivot 18 driven plate 19 engaging pin 21 biasing means 22 wiper motor unit 23 motor output shaft 24 drive disk 25 engaging hole 26 bracket 26A door side Bracket (vehicle side bracket) 26B Motor side bracket 28 Bolt (mounting and adjusting means) 29 Nut (mounting and adjusting means) 30 Mounting and adjusting means 31 Bolt insertion hole (mounting and adjusting means) 33 Elastic mount member 37 Stopper 38A Stopper piece 40 Centering Jig 41 Base plate 42 Flange 43 Engagement pin insertion hole 45, 46, 47 Locking hook (engaging means) 48 Vertical slit

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takao Saijo 1760 Higashimatano-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Inside the Automobile Electrical Industry Co., Ltd. (72) Inventor Hiroyuki Iizumi 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Motor Co., Ltd. (72) Inventor Akihiko Inagaki 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Prefecture Nissan Motor Co., Ltd. F-term (reference) 3D025 AA01 AB01 AC01 AD03 AE02 AE03

Claims (11)

[Claims] 1. A wiper motor unit is attached to one edge of an opening provided in a vehicle body via a bracket,
A drive disk having an engagement hole or an engagement pin is fixedly provided at the motor output shaft end of the wiper motor unit, and a wiper pivot is attached to a hatch panel which is attached to the other edge of the opening by a hinge member so as to be freely opened and closed. At the same time, a driven plate having an engaging pin or an engaging hole which engages with or disengages from the engaging hole or the engaging pin of the drive disk is fixed to an end of the wiper pivot on the indoor side, and the drive disk is closed by closing the hatch panel. A wiper device capable of transmitting the driving force of the wiper motor unit to the wiper pivot by engaging the engagement pin and the engagement hole provided on the driven plate with the wiper pivot. At the position offset from the pivot axis, a stopper for rotation control protrudes from the pivot bearing protruding toward the room. On the other hand, the wiper apparatus is characterized in that by extending the stopper for restricting the wiper stop position at least engaged with the stopper portion to the driven plate. 2. An engagement hole and an engagement pin are provided on a diameter segment of a drive disk parallel to a rotation surface of the hatch panel at a wiper stop position, and the engagement hole is provided on the rotation surface of the hatch panel. 2. The wiper device according to claim 1, wherein the wiper device is formed in a long hole parallel to. 3. The wiper device according to claim 1, wherein the engaging pin is movably mounted in the axial direction thereof and is urged in a protruding direction by an urging means. 4. A bracket for mounting the wiper motor unit includes a vehicle body side bracket mounted on the vehicle body, and a motor side bracket mounted on the wiper motor unit and fixed to the vehicle body side bracket. The wiper device according to any one of claims 1 to 3, further comprising a mounting adjustment means for axially aligning a motor output shaft of the wiper motor unit with respect to the wiper pivot. 5. The mounting adjustment means includes: a bolt and a nut for fastening and fixing the vehicle body side bracket and the motor side bracket at a plurality of locations; and a one of the vehicle body side bracket and the motor side bracket having a diameter larger than the bolt outer diameter. The wiper device according to claim 4, further comprising a formed bolt insertion hole. 6. The wiper device according to claim 5, wherein an annular elastic mount member for supporting the motor-side bracket on the vehicle body-side bracket in a vibration-proof manner is fitted and fixed in the bolt insertion hole formed in a large diameter. . 7. A wiper motor unit is attached to one edge of an opening provided in a vehicle body via a bracket,
A drive disk having an engagement hole or an engagement pin is fixedly provided at an end of a motor output shaft of the wiper motor unit, and a wiper pivot is attached to a hatch panel which is attached to the other edge of the opening by a hinge member so as to be freely opened and closed. At the same time, a driven plate having an engaging pin or an engaging hole engaged with or disengaged from the engaging pin of the drive disk is fixed to an end of the wiper pivot on the indoor side, and the drive disk is closed by closing the hatch panel. In the method of mounting the wiper device, the driving force of the wiper motor unit can be transmitted to the wiper pivot by engaging the engagement pin and the engagement hole provided on the driven plate with the wiper pivot. And a centering jig which can be externally fitted to the drive disk is mounted concentrically with the wiper pivot on the driven plate. Mounting, the wiper motor unit of the vehicle body side while closing the hatch panels, and moved and adjusted to a position aligning jig may fitted to the drive disk,
A method of mounting a wiper device, comprising: fitting a centering jig to a drive disk to center a motor output shaft with respect to a wiper pivot to fix a wiper motor unit. 8. A centering jig is formed in a cap shape that can be fitted to a drive disk by a base plate and a flange formed on a peripheral edge of the base plate. The method for mounting a wiper device according to claim 7, further comprising a means for engaging with the driven plate. 9. The method according to claim 8, wherein the flange portion of the alignment jig is provided with a plurality of vertical slits so as to be elastically deformable in a radial direction. 10. A bracket for mounting a wiper motor unit includes a vehicle body side bracket mounted on a vehicle body, and a motor side bracket mounted on the wiper motor unit and fixed to the vehicle body side bracket,
The wiper device according to any one of claims 7 to 9, wherein a mounting adjustment means for axially aligning a motor output shaft of the wiper motor unit with respect to the wiper pivot is provided between the two brackets. Mounting method. 11. The mounting adjustment means includes: a bolt and a nut for fastening and fixing the vehicle body-side bracket and the motor-side bracket at a plurality of locations; and one of the vehicle-side bracket and the motor-side bracket having a diameter larger than the bolt outer diameter. The method of claim 10, further comprising: forming a bolt insertion hole.