JP2001010450A - Wiper device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent damage to a wiper blade when a 'lock back' condition is canceled, to easily achieve the 'lock back' condition, and to provide a 'lock back' mechanism at low cost. SOLUTION: A spacer member 28 is rotatably provided in the wiper arm body 18 of a wiper device 10 for a vehicle and is rotated and inserted between the wiper arm body 18 and an arm head 12 to achieve a 'lock back' condition. In the 'lock back' condition, a wiper blade approaches a windshield glass 44, so that damage to the wiper blade can be prevented when the 'lock back' condition is canceled. When the 'lock back' condition is achieved by rotating the spacer member 28, it can easily be achieved without resistance that may arise in devices of the prior art. Further, the spacer member 28 is manufactured into a size such that it can be inserted between the wiper arm body 18 and the arm head 12, so that high-precision parts are not required and a 'lock back' mechanism can be provided at low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wiper device for wiping a windshield glass of a vehicle.

[0002]

2. Description of the Related Art In a vehicle wiper device, for example,
An arm head 106 is provided like a vehicle wiper device 100 as shown in FIG. 11, and the arm head 106 is fixed to a pivot shaft (not shown) provided in the vehicle. A wiper arm main body 102 is rotatably supported on the arm head 106 by an arm hinge 104. The wiper arm main body 102 holds a wiper blade (not shown) for wiping a windshield glass of a vehicle at a distal end. Further, a tension coil spring 110 is bridged between the wiper arm main body 102 and the arm head 106 via a spring guide 108 engaged with the arm head 106, whereby arm pressure is applied to the wiper arm main body 102. ing.

Here, in a normal state, the urging force of the tension coil spring 110 is applied in a direction downward of the wiper arm main body 102, but the wiper arm main body 102 is moved in a direction away from the windshield glass with respect to the arm head 106. The wiper arm body 102 and the tension coil spring 1 are rotated around the arm hinge 104.
11 and the position where the arm head 106 and the spring guide 108 engage with each other (FIG. 11).
When the line A) exceeds the arm hinge 104 (point B in FIG. 11), the direction of the urging force of the tension coil spring 110 is directed upward of the wiper arm main body 102. Therefore, at least the tension coil spring 11
By rotating the wiper arm main body 102 and bringing the wiper arm main body 102 into contact with the arm head 106 until the direction of the urging force of 0 is directed above the wiper arm main body 102, a so-called lockback state is established.

Here, such a vehicle wiper device 10 is described.
When the lockback state is 0, the wiper blade is largely separated from the windshield glass in the lockback state. Therefore, when the lockback state is released, the wiper blade violently collides with the windshield glass and the wiper blade may be damaged. .

In order to prevent the wiper blade from being damaged, for example, as shown in FIG.
No. 5520 has a vehicle wiper device 150. The vehicle wiper device 150 includes an arm head 152, and the arm head 152 is fixed to a pivot shaft (not shown) provided in the vehicle. The arm head 152 is attached to the wiper arm body 154 by an arm hinge 151.
Are rotatably supported, and the wiper arm body 154
Holds a wiper blade (not shown) for wiping the windshield glass of the vehicle at the tip. Also,
A tension coil spring (not shown) is bridged between the wiper arm body 154 and the arm head 152 via a spring guide (not shown) engaged with the arm head 152.
4 is provided with an arm pressure. Further, the cross section of the wiper arm main body 154 has a U-shape, and a pair of male engaging portions 156 and a pair of male engaging portions 158 are provided to protrude inside each of both side walls of the wiper arm main body 154. .

A stopper 160 having a U-shaped cross section is provided inside the wiper arm main body 154. Stopper 16
0 is substantially the same as the distance between the side walls of the wiper arm body 154, and the stopper 160 is
It is movable along the 54 axis. Further, the male engaging portion 15 of the wiper arm main body 154 is
6 and 158, slit-like female engaging portions 162 and 164 are provided corresponding to those. Further, the stopper 1
The distance between the end 168 of the side wall 60 of the arm head 152 and the female engagement portion 162 and the end 166 of the wiper arm body 154 on the side wall of the stopper 160 and the female engagement portion 164
Between the male engaging portion 1 of the wiper arm main body 154.
The distance between 56 and the male engaging portion 158 is substantially the same.

Here, in a normal state, the female engaging portion 162 of the stopper 160 is engaged with the male engaging portion 156 of the wiper arm main body 154, and the male engaging portion 158 of the wiper arm main body 154 is engaged with the end of the side wall of the stopper 160. The contact of the stopper 168 suppresses the rattling of the stopper 160.

On the other hand, as shown in FIG.
, The female engaging portion 164 of the stopper 160 is engaged with the male engaging portion 158 of the wiper arm main body 154, and the side wall end 166 of the stopper 160 is brought into contact with the male engaging portion 156 of the wiper arm main body. As a result, the upper wall of the stopper 160 is inserted between the arm head 152 and the wiper arm main body 154, and the wiper arm main body 154 is inserted.
The upper wall of the stopper 160 is sandwiched between the arm head 152 and the wiper arm main body 154 by the arm pressure applied to the arm 160. Thus, the wiper arm main body 154 can be held at a position where the wiper blade approaches the windshield glass, and the lockback state can be established. In this lockback state, since the wiper blade is approaching the windshield glass, when the stopper 160 is slid again to release the lockback state, the wiper blade does not hit the windshield glass violently and the wiper blade does not hit the windshield glass. Damage can be prevented.

However, in such a vehicle wiper device 150, the side wall of the stopper 160 is pressed by the male engaging portions 156 and 158 of the wiper arm main body 154 when the stopper 160 is slid and brought into the lockback state. , The resistance to move the stopper 160 is large,
Thus, it is difficult to lock back the wiper arm main body 154. Further, not only is the width of the stopper 160 substantially equal to the distance between the side walls of the wiper arm main body 154, but also the distance between the side wall end 168 of the stopper 160 and the female engagement portion 162 and the side wall end 16
6 and the female engaging portion 164 need to be substantially the same as the distance between the male engaging portion 156 and the male engaging portion 158 of the wiper arm main body 154. Precision processing is required, and the cost of the lockback mechanism is high.

[0010]

In consideration of the above fact, the present invention can prevent the wiper blade from being damaged when releasing the lockback state, can easily enter the lockback state, and provide a lockback mechanism at low cost. It is an object of the present invention to obtain a wiper device for a vehicle that can be used.

[0011]

According to a first aspect of the present invention, there is provided a wiper device for a vehicle, wherein the arm head is fixed to a pivot shaft provided on a vehicle and rotates integrally with the pivot shaft.
The arm head is rotatably supported by a support shaft in a direction away from the surface to be wiped, holds a wiper blade at a tip, and rotates the wiper blade around the support shaft so that the wiper blade is rotated. A wiper arm having a lock-back state separated from the main body, and a spring that extends between the arm head and the wiper arm main body and applies an arm pressure to the wiper arm main body. The wiper arm is rotatably provided on the main body, and is inserted between the wiper arm main body and the arm head so that the wiper blade holds the wiper arm main body at a position close to the wiped surface to enter the lockback state. And a spacer member.

According to the first aspect of the present invention, in the normal state, the wiper blade held by the wiper arm main body comes into contact with the wiped surface by the arm pressure applied to the wiper arm main body by the spring. I have.

On the other hand, a state in which the wiper arm body is rotated by a predetermined angle or more around the support shaft with respect to the arm head in a direction away from the surface to be wiped (specifically, a gap is opened between the arm head and the wiper arm body) Rotated to the extent)
By rotating the spacer member provided on the wiper arm main body and inserting the spacer member between the wiper arm main body and the arm head, the arm pressure applied to the wiper arm main body causes the wiper arm main body and the arm head to move between the wiper arm main body and the arm head. The spacer member is sandwiched. Thus, the wiper arm main body can be held at a position where the wiper blade approaches the wiped surface, and the lockback state can be established.

Further, when releasing the lockback state, the spacer member is rotated with respect to the wiper arm main body to detach the spacer member from between the wiper arm main body and the arm head. Thus, the wiper blade comes into contact with the surface to be wiped by the arm pressure.

In the lock-back state, since the wiper blade is close to the surface to be wiped, the wiper blade is not sharply hit by the wiped surface when the lock-back state is released, and the wiper blade is damaged. Can be prevented.

In the lock-back state, the spacer member is rotated with respect to the wiper arm main body.
Unlike the conventional case, when the stopper is slid, the side wall of the stopper is not pressed by the male engaging portion of the wiper arm main body, so that the resistance for moving the spacer member can be reduced. Therefore, the lockback state can be easily set.

Further, since the spacer member may be manufactured in such a size that the spacer member can be inserted between the wiper arm main body and the arm head, there is no need for a component that requires high-precision processing such as a conventional stopper. And therefore
The lockback mechanism can be provided at low cost.

As described above, in the vehicle wiper device according to the first aspect, damage to the wiper blade at the time of releasing the lockback state can be prevented, the lockback state can be easily achieved, and the lockback mechanism can be manufactured at low cost. Can be provided.

According to a second aspect of the present invention, in the vehicle wiper apparatus according to the first aspect, the urging means for urging the spacer member in a direction intersecting the rotation surface of the spacer member is provided. It is characterized by having.

According to the wiper device for a vehicle according to the second aspect, the spacer member is pressed in the direction intersecting the rotation surface of the spacer member by the urging force of the urging means, so that the spacer member rotates freely. Is suppressed. Thus, it is possible to prevent the spacer member from rattling and generating rattling noise other than in the lockback state (particularly, when the vehicle is running or when the wiper is operating).

A wiper device for a vehicle according to a third aspect of the present invention is the wiper device for a vehicle according to the first or second aspect, wherein a cross section of the wiper arm body is provided in a substantially U-shape, and an upper wall of the wiper arm body is provided. Wherein the spacer member is pivotally connected to the wiper arm body, and the spacer member is disposed between the side walls of the wiper arm body.

According to the wiper device for a vehicle according to the third aspect, since the spacer member is disposed between the side walls of the wiper arm body having a substantially U-shaped cross section, the space existing between the side walls of the wiper arm body can be effectively used. Accordingly, it is not necessary to separately provide a space for providing the lockback mechanism, and therefore, it is possible to prevent the lockback mechanism from narrowing the occupant's view.

A wiper device for a vehicle according to a fourth aspect of the present invention is the wiper device for a vehicle according to the third aspect, wherein the spacer member is provided with a knob protruding from the spacer member and corresponds to the knob portion. An open groove is provided on a side wall of the wiper arm main body, and the knob is protruded from the open groove.

According to the wiper device for a vehicle according to the fourth aspect, since the knob provided on the spacer member protrudes from the open groove provided on the side wall of the wiper arm main body, the knob is moved along the open groove. By doing so, the spacer member can be rotated. Therefore, the wiper arm body can be more easily locked back.

In particular, when the urging force is applied to the spacer member by the urging means, the knob is pressed against the peripheral portion of the open groove by the urging force in addition to the lockback state. Thus, the knob is held at the peripheral edge of the open groove in a state where the urging force is applied, so that it is possible to further prevent rattling of the spacer member and rattling.

According to a fifth aspect of the present invention, in the vehicle wiper device according to the fourth aspect, a part of an open groove of the wiper arm body is enlarged to form a locking portion corresponding to the knob. And the knob portion is fitted into the locking portion other than in the lockback state.

According to the wiper device for a vehicle according to the present invention, in a state other than the lockback state, the knob provided on the spacer member is fitted into the locking portion provided in the opening groove, so that the knob is opened. Movement along the groove can be suppressed. For this reason, rotation of the spacer member is suppressed, and rattling of the spacer member and rattling noise can be further suppressed.

In particular, when the urging force of the urging means is applied to the spacer member, the knob is pressed against the peripheral edge of the locking portion by the urging force in addition to the lockback state. Thus, the knob is reliably held by the locking portion in a state in which the urging force is applied, so that it is possible to reliably prevent rattling of the spacer member and rattling.

[0029]

FIG. 2 is a perspective view showing a schematic overall configuration of a vehicle wiper device 10 according to an embodiment of the present invention, and FIG. The main part is shown in a side view. FIG. 4 is a perspective view showing a main part of the vehicle wiper device 10, and FIG. 5 is a sectional view showing a main part of the vehicle wiper device 10.

Vehicle wiper device 10 according to the present embodiment
Is for wiping the windshield glass 44 as the surface to be wiped, and includes the arm head 12. The arm head 12 is fixed to a pivot shaft (not shown) provided in the vehicle, and the arm head 12 reciprocates as the pivot shaft reciprocates. A locking shaft 14 is provided below the arm head 12, and a substantially C-shaped spring guide 16 is locked to the locking shaft 14.

At the end of the arm head 12, a wiper arm body 18 is rotatably supported by an arm hinge 20 as a support shaft. The wiper arm body 18 has a retainer 22 on the distal end side, and the retainer 22 has a substantially U-shaped cross section. An arm piece 24 is fixed to the distal end side of the retainer 22, and a tension coil spring 26 as a spring is locked between the arm piece 24 and the above-described spring guide 16. Thereby, the tension coil spring 26 is bridged between the wiper arm body 18 and the arm head 12 via the spring guide 16, and the tension coil spring 26 applies an arm pressure to the wiper arm body 18.

On the side wall near the end of the retainer 22, an open groove 32 is provided corresponding to a knob 30 of a spacer member 28 described later. Further, a locking portion 34 is provided in the open groove 32 with a part thereof being enlarged in diameter, and the knob portion 30 of the spacer member 28 can be fitted into the locking portion 34.

A spacer member 28 is provided between the pair of side walls near the end of the retainer 22. The spacer member 28 is pivotally attached to the upper wall of the retainer 22 by a rivet 36, whereby the spacer member 28 is rotatably supported by the retainer 22. Further, the insertion hole 37 through which the rivet 36 of the spacer member 28 is inserted has a gap between itself and the rivet 36, whereby the spacer member 28 can be inclined with respect to the upper wall of the retainer 22. Here, the wiper arm main body 18 is rotated around the arm hinge 20 by a certain angle or more with respect to the arm head 12 in a direction away from the windshield glass 44 (specifically, the distance between the arm head 12 and the wiper arm main body 18). (Rotated to the point where the gap opens)
Then, by rotating the spacer member 28, the end 38 of the spacer member 28 can be inserted between the upper wall of the retainer 22 and the upper end of the arm head 12, so that a so-called lock can be provided as described later in detail. The back state is set.

A wave washer 40 as an urging means is inserted between the retainer 22 and the spacer member 28 while being inserted through the rivet 36. The wave washer 40 connects the spacer member 28 to the retainer 22. It is urged downward (below the rotation surface of the spacer member 28).

Further, the knob 3 is provided on the spacer member 28.
0 is provided. The knob 30 is provided so as to protrude in the direction of the open groove 32 of the retainer 22, and the knob 30 protrudes from the open groove 32.
Thus, by moving the knob 30 along the open groove 32, the spacer member 28 can be rotated. In a state other than the state in which the spacer member 28 is inserted between the retainer 22 and the arm head 12 (lockback state), the knob 30 is caused by the urging force of the wave washer 40 to engage the locking part 34 of the open groove 32 described above. It is fitted into the locking portion 34 while being pressed against the peripheral portion.
Thus, the knob portion 30 is securely held by the locking portion 34 in a state where the urging force of the wave washer 40 is applied.

The wiper arm main body 18 rotatably holds the wiper blade 42 at the tip (the tip of the arm piece 24), and the wiper blade 42 wipes the windshield glass 44 described above.

FIG. 1 is a side view showing a schematic configuration of the vehicle wiper apparatus 10 in a state where the spacer member 28 is inserted between the wiper arm main body 18 and the arm head 12. FIG. 6 is a plan view showing a main part of the vehicle wiper device 10 in a similar state. 7 is a perspective view showing a main part of the vehicle wiper device 10 in a similar state, and FIGS. 8 and 9 show main parts of the vehicle wiper device 10 in a similar state. It is shown in cross section.

As shown in FIGS. 1 and 6 to 9, the wiper arm main body 18 is rotated around the arm hinge 20 by a predetermined angle or more with respect to the arm head 12 in a direction away from the windshield glass 44 (specifically, FIG. 1). Is rotated to the extent that a gap is formed between the arm head 12 and the wiper arm main body 18), and the spacer member 28 is rotated to insert the spacer member 28 between the retainer 22 and the arm head 12. As a result, the wiper arm main body 1 is moved by the arm pressure applied to the wiper arm main body 18.
Spacer member 28 is sandwiched between arm 8 and arm head 12. As a result, the wiper arm body 18 is held at a position close to the windshield glass, and the lockback state is established.

Next, the operation of the present embodiment will be described.

In the vehicle wiper device 10 having the above-described configuration, in a normal state, the wiper blade 42 held by the wiper arm main body 18 uses the windshield glass 44 by the arm pressure applied to the wiper arm main body 18 by the extension coil spring 26. Is in contact with

On the other hand, the arm hinge 20 is moved away from the windshield glass 44 with respect to the arm head 12.
In a state in which the wiper arm main body 18 is rotated around a predetermined angle or more (specifically, in a state in which the gap is opened to the extent that a gap is opened between the arm head 12 and the wiper arm main body 18),
By rotating the spacer member 28 provided on the wiper arm main body 18 to insert the spacer member 28 between the wiper arm main body 18 and the arm head 12, the wiper arm main body 18 and the arm are moved by the arm pressure applied to the wiper arm main body 18. Spacer member 2 between head 12
8 is sandwiched. Thus, the wiper arm main body 18 can be held at a position where the wiper blade 42 approaches the windshield glass 44, and the lockback state can be established.

When releasing the lock-back state, the spacer member 28 is rotated with respect to the wiper arm main body 18 to separate the spacer member 28 from between the wiper arm main body 18 and the arm head 12. As a result, the wiper blade 42 comes into contact with the windshield glass 44 by the arm pressure.

Since the wiper blade 42 is close to the windshield glass 44 in the lockback state, the wiper blade 42 does not violently hit the windshield glass 44 when releasing the lockback state. The blade 42 can be prevented from being damaged.

When the lock-back state is set, the spacer member 28 is rotated with respect to the wiper arm main body 18. Therefore, when the stopper is slid in the conventional manner, the side wall of the stopper is engaged with the male engaging portion of the wiper arm main body. Therefore, the resistance for moving the spacer member 28 can be reduced. Therefore, the lockback state can be easily set.

Further, since the knob portion 30 provided on the spacer member 28 protrudes from the open groove 32 provided on the side wall of the wiper arm main body 18, the knob portion 30 is moved along the open groove 32 so that the spacer member 28 is moved. Can be rotated. For this reason, the lock back state can be more easily achieved.

Also, since the spacer member 28 may be manufactured in such a size that the spacer member 28 can be inserted between the wiper arm main body 18 and the arm head 12, a component such as a conventional stopper which requires high-precision processing. Is unnecessary, and the lock-back mechanism can be provided at low cost.

As described above, in the vehicle wiper device 10 according to the present embodiment, it is possible to prevent the wiper blade 42 from being damaged at the time of releasing the lockback state, to easily enter the lockback state, and to provide the lockback mechanism. It can be provided at low cost.

Also, when releasing the lock-back state, the spacer member 28 is rotated with respect to the wiper arm main body 18, so that when the stopper is slid in the conventional manner, the side wall of the stopper is engaged with the male engagement of the wiper arm main body. The resistance for moving the spacer member 28 can be reduced without being pressed by the portion. Therefore, the lockback state can be easily released.

Further, in other than the lockback state, the knob 30 provided on the spacer member 28 is fitted into the locking portion 34 provided in the open groove 32 of the retainer 22.

Here, since the spacer member 28 is pressed below the wiper arm main body 18 by the urging force of the wave washer 40, the knob portion 30 is pressed against the periphery of the locking portion 34 by the urging force. For this reason, the knob portion 30 is securely held by the locking portion 34 in a state where the urging force is applied, so that the knob portion 30 can be prevented from moving along the open groove 32. Free rotation is suppressed. Therefore, other than the lockback state (particularly when the vehicle is running or when the wiper is operating)
Furthermore, rattling of the spacer member 28 and rattling can be prevented.

Further, since the spacer member 28 is arranged between the side walls of the wiper arm main body 18 having a substantially U-shaped cross section, the space existing between the side walls of the wiper arm main body 18 can be effectively used. Accordingly, it is not necessary to separately provide a space for providing the lockback mechanism, and therefore, it is possible to prevent the lockback mechanism from narrowing the occupant's view.

In the present embodiment, the open groove 32 is provided on the side wall of the retainer 22. However, when the open groove 32 is not provided on the side wall of the retainer 22, the spacer member 28 is formed by the urging force of the wave washer 40. Since the spacer member 28 is pressed below the rotating surface of the member 28, the spacer member 28 is prevented from freely rotating. Accordingly, it is possible to suppress the rattling of the spacer member 28 due to the backlash in addition to the lockback state.

Further, in the present embodiment, the locking portion 34 is provided in the open groove 32. However, when the locking portion 34 is not provided in the open groove 32, the urging force of the wave washer 40 is required in addition to the lockback state. As a result, the knob 30 is pressed against the periphery of the open groove 32. As a result, the knob portion 30 is held in the peripheral portion of the open groove 32 in a state where the urging force is applied, so that it is possible to further suppress the rattling noise caused by the rattling of the spacer member 28.

Further, in this embodiment, the wave washer 40 urges the spacer member 28 below the rotating surface of the spacer member 28, but the present invention is not limited to this, and the wave washer 40 applies the spacer member 28 to the spacer member 28. It may be urged in a direction intersecting the turning surface of. (Modification) FIG. 10 is a side view showing main parts of vehicle wipers 50 and 60 according to a modification of the present embodiment.

In this modification, as shown in FIG. 10A, the thickness of the end portion 54 of the spacer member 52 inserted between the wiper arm main body 18 and the arm head 12 of the vehicle wiper device 50 is adjusted. As shown in FIG. 10B, a spacer member 62 inserted between the wiper arm main body 18 and the arm head 12 of the vehicle wiper device 60 is provided.
Is bent. Thereby, the separation distance of the wiper blade 42 from the windshield glass 44 in the lockback state can be adjusted.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a vehicle wiper device according to an embodiment of the present invention in a lockback state.

FIG. 2 is a perspective view showing a schematic overall configuration of a vehicle wiper device.

FIG. 3 is a side view of a main part of the vehicle wiper device.

FIG. 4 is a perspective view of a main part of the vehicle wiper device.

FIG. 5 is a sectional view of a main part of the vehicle wiper device (5 in FIG. 4);
FIG.

FIG. 6 is a plan view of a main part of the vehicle wiper device in a lockback state.

FIG. 7 is a perspective view of a main part of the vehicle wiper device in a lockback state.

8 is a cross-sectional view (a cross-sectional view taken along line 8-8 in FIG. 7) of a main part of the vehicle wiper device in a lock-back state.

9 is a cross-sectional view (cross-sectional view along line 9-9 in FIG. 7) of a main part of the vehicle wiper device in a lockback state.

FIGS. 10A and 10B are side views of a spacer member of a vehicle wiper device according to a modification of the present embodiment.

FIG. 11 is a side view showing a schematic configuration of a conventional vehicle wiper device.

FIG. 12 is a sectional view showing a main part of a conventional vehicle wiper device.

[Explanation of symbols]

 Reference Signs List 10 vehicle wiper device 12 arm head 18 wiper arm body 20 arm hinge (support shaft) 26 tension coil spring (spring) 28 spacer member 30 knob portion 32 open groove 34 locking portion 40 wave washer (biasing means) 42 wiper blade 44 Windshield glass (wiping surface) 50 Wiper device for vehicle 52 Spacer member 60 Wiper device for vehicle 62 Spacer member

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshimasa Kondo 2-290 Naganecho, Obu City, Aichi Prefecture F-term in Tokai Riki Seisakusho Co., Ltd. 3D025 AA01 AC01 AD01 AE05 AE22 AE40

Claims (5)

[Claims] 1. An arm head fixed to a pivot shaft provided in a vehicle and rotating integrally with the pivot shaft, and rotatably supported by the support shaft with respect to the arm head in a direction away from a surface to be wiped. A wiper arm body which is in a lockback state in which the wiper blade is separated from the surface to be wiped by rotating the wiper blade around the support shaft while holding the wiper blade at the tip, and the arm head and the wiper arm body. And a spring for applying an arm pressure to the wiper arm main body, the spring being provided between the wiper arm main body and the arm head. By holding the wiper arm body at a position where the wiper blade approaches the surface to be wiped, Vehicle wiper apparatus characterized by comprising a spacer member to Kkubakku state, the. 2. The vehicle wiper device according to claim 1, further comprising an urging means for urging the spacer member in a direction intersecting a rotation surface of the spacer member. 3. A wiper arm body having a substantially U-shaped cross section, wherein the spacer member is pivotally mounted on an upper wall of the wiper arm body, and the spacer member is disposed between side walls of the wiper arm body. Claim 1 or Claim 2
A wiper device for a vehicle according to the above. 4. A knob portion protruding from the spacer member is provided on the spacer member, an open groove is provided on a side wall of the wiper arm body corresponding to the knob portion, and the knob portion protrudes from the open groove. The vehicle wiper device according to claim 3, wherein: 5. A lock portion corresponding to the knob portion is provided by enlarging a part of the open groove, and the knob portion is fitted into the lock portion except in the lock-back state. The vehicle wiper device according to claim 4.