JP2021079771A - Wiper blade and wiper arm coupling structure - Google Patents

Abstract

To provide a coupling structure of a wiper blade and a wiper arm from which a hold member holding the wiper arm is easily removed and in which it is possible to efficiently perform a task to remove the wiper arm from the wiper blade.SOLUTION: In a coupling structure of a wiper blade 3 and a wiper arm 2, there is provided a slide member 10 slidable along an upper surface 6A of the primary lever 6, and a hook part 2D is held by the slide member 10 by an end part 2E of the hook part 2D of the wiper arm 2 engaging an engagement surface 12A of the slide member 10. In removing the wiper arm 2 from the wiper blade 3, the wiper arm 2 is rotated in a standing direction to cancel engagement between the end part 2E and the engaging surface 12A, and the slide member 10 is moved to a retreat position, and a gap for a removal task is formed in a fitting opening part 6B.SELECTED DRAWING: Figure 2

Description

The present invention relates to a coupling structure of a wiper blade and a wiper arm in a wiper assembly used for a vehicle wiper device or the like.

The wiper assembly provided in the vehicle wiper device is generally composed of a wiper blade provided with a wiping member for wiping a wiped surface such as a glass surface of an automobile, and a wiper arm for holding the wiper blade. In such a wiper assembly, the wiper blade may be connected to the wiper arm by attaching a U-shaped curved hook portion provided on the wiper arm to a clip member provided on the wiper blade. ..

JP 2016-41522

11 and 12 show an example of the coupling structure of the wiper blade and the wiper arm in the conventional wiper assembly. As shown, the wiper arm 100 includes a hook portion 101 curved in a U shape as a coupling portion with the wiper blade 110. On the other hand, in the wiper blade 110, the clip member 112 is rotatably attached below the mounting opening 111. By attaching the hook portion 101 to the clip member 112, the wiper arm 100 is rotatably coupled to the wiper blade 110.

The wiper blade 110 includes a holding member 113 that holds the hook portion 101 of the wiper arm 100 at a predetermined position. The holding member 113 is rotatably attached to the wiper blade 110 around the rotation shaft 113A. As shown in FIG. 11, when the wiper arm 100 and the wiper blade 110 are connected, the holding member 113 is arranged along the longitudinal direction of the wiper blade 110 and holds the hook portion 101 at the elastic contact portion 113B at the tip. doing. On the other hand, as shown in FIG. 12, when the wiper arm 100 is removed from the wiper blade 110, the hook portion 101 is removed from the clip member 112 by rotating the holding member 113 to the upright position.

As described above, in the conventional coupling structure, the hook portion 101 is held by the holding member 113 that rotates with respect to the wiper blade 110. Therefore, when the wiper arm 100 is removed from the wiper blade 110, the user manually holds the hook portion 101. It was necessary to erect the holding member 113. In this case, the user inserts a fingertip between the holding member 113 and the hook portion 101 to move the holding member 113, but the gap between the holding member 113 holding the hook portion 101 and the hook portion 101 is small. It was difficult to work. In addition, the holding member 113 that has been erected once may fall down during the removal work, and the fallen holding member 113 may interfere with the wiper arm 100 and interfere with the removal work. .. Such a problem has caused a decrease in the efficiency of the work of removing the wiper arm 100 from the wiper blade 110.

The present invention has been made by paying attention to such a problem. In the coupling structure of the wiper blade and the wiper arm, the holding member for holding the wiper arm can be easily removed, and the wiper arm is removed from the wiper blade. It is an object of the present invention to provide a coupling structure of a wiper blade and a wiper arm capable of performing work efficiently.

In the present invention, in the coupling structure of the wiper blade and the wiper arm, the wiper blade is formed on a clip member rotatably provided with respect to the wiper blade main body and an upper surface of the wiper blade and above the clip member. The wiper arm includes a mounting opening that is open and a slide member that is arranged on the upper surface of the wiper blade and can slide and move along the upper surface of the wiper blade, and the wiper arm is mounted on the clip member. The slide member is movable between a closing position arranged on the mounting opening and a retracting position moved from the closing position toward a position outside the mounting opening. The slide member engages with the joint portion to hold the joint portion at the closed position, and by rotating the wiper arm together with the clip member with respect to the wiper blade main body. , The wiper arm and the slide member are disengaged.

The joint portion of the wiper arm is a hook portion formed by folding back the end portion of the wiper arm and having a curved tip portion, and the slide member has a curved shape that fits into the tip portion of the hook portion. May be provided with a fitting surface of.

The hook portion has a flat surface adjacent to the tip portion, the slide member has a protruding portion provided adjacent to the fitting surface and protrudes toward the hook portion, and the wiper arm is attached to the wiper blade. When the fitting surface is rotated with respect to the main body until the tip portion is disengaged, the flat surface comes into contact with the protruding portion, so that the slide member is pushed out to the retracted position side. You may.

A locking means for locking the slide member to the retracted position may be provided.

According to the present invention, in the coupling structure of the wiper blade (for example, the wiper blade 3) and the wiper arm (for example, the wiper arm 2), the coupling portion (for example, the hook portion 2D) of the wiper arm attached to the clip member (for example, the clip member 8) is attached. ) Is held by a slide member (for example, slide member 10) that slides along the upper surface (for example, upper surface 6A) of the wiper blade, so that the wiper arm is attached to the wiper blade main body (part other than the clip member of the wiper blade). The slide member can be slightly slid and the engagement between the slide member and the joint can be disengaged by simply rotating the slide member. Therefore, since the holding state of the joint portion can be released by the slide member extremely easily, the work of removing the wiper arm from the wiper blade can be made more efficient.

The joint portion of the wiper arm is formed by folding back the end portion of the wiper arm to form a hook portion (for example, hook portion 2D) having a curved tip portion (for example, tip portion 2E), and a fitting surface provided for the slide member. If the hook portion is held by fitting the (for example, the fitting surface 12A) and the tip portion of the hook portion, the position where the tip portion of the hook portion is separated from the fitting surface when the wiper arm is rotated. Since the tip portion and the fitting surface can be disengaged from each other, it is possible to obtain a configuration in which the holding state is released by the rotation of the wiper arm with a simple configuration. Further, if the clip member is mounted inside the hook portion, the hook portion can be removed from the clip member by moving the wiper arm tilted by rotation in the longitudinal direction, so that the wiper arm can be removed from the wiper blade. The work of removing from the wiper arm can be performed by a series of operations of tilting the wiper arm and then moving it in the longitudinal direction.

If the slide member is pushed out to the retracted position side by the contact between the flat surface of the hook portion (for example, the flat upper surface 2F) and the protruding portion of the slide member (for example, the rear protruding portion 12B), the user can push the slide member. When moving to the retracted position, the slide member is pushed out to a position where it is easy to work simply by rotating the wiper arm, which is an appropriate aid at the initial stage of the work, so that the work can be facilitated. Further, the amount of movement in which the slide member is pushed out can be appropriately adjusted by the amount of protrusion of the protruding portion.

If a locking means for locking the slide member to the retracted position (for example, the locking protrusion 11C of the slide member 10 and the locking recess 6F of the primary lever 6) is provided, the joint portion of the wiper arm is being removed from the clip member. In addition, since the slide member does not return to the closing position side and interfere with it, the removal work can be performed stably and smoothly.

It is a perspective view which shows the whole structure of the wiper assembly in embodiment of this invention. It is sectional drawing which shows the coupling structure of the wiper blade and the wiper arm in embodiment of this invention, and is the figure which shows the state which the wiper arm and the wiper blade are arranged substantially parallel. It is sectional drawing which shows the coupling structure of the wiper blade and the wiper arm in embodiment of this invention, and is the figure which shows the state at the time of wiping operation. It is a perspective view which shows the coupling structure of the wiper blade and the wiper arm in embodiment of this invention, and is the figure which shows the state at the time of wiping with a partial cross section. It is a perspective view which shows the clip member in embodiment of this invention. It is sectional drawing which shows the slide member in embodiment of this invention. It is sectional drawing which shows the state of the removal work of the wiper arm from the wiper blade in embodiment of this invention, and is the figure which shows the state which the wiper arm was rotated for disengagement of a slide member and a hook part. It is sectional drawing which shows the state of the removal work of the wiper arm from the wiper blade in embodiment of this invention, and is the figure which shows the state which moved the slide member to the retracted position. It is a perspective view which shows the state of the removal work of the wiper arm from the wiper blade in embodiment of this invention, and is the figure which shows the state which moved the slide member to the retracted position. It is a perspective view which shows the state of the removal work of the wiper arm from the wiper blade in embodiment of this invention, and is the figure which shows the state which the hook part was removed from the clip member. It is sectional drawing which shows the coupling structure of the wiper blade and the wiper arm in the conventional wiper assembly, and is the figure which shows the coupling state of a wiper blade and a wiper arm. It is sectional drawing which shows the coupling structure of the wiper blade and the wiper arm in the conventional wiper assembly, and is the figure which shows how the wiper arm is removed from the wiper blade.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows the overall configuration of the wiper assembly 1. As shown, the wiper assembly 1 includes a wiper arm 2 and a wiper blade 3 held by the wiper arm 2.

The wiper arm 2 includes an arm head 2A, a retainer 2B rotatably connected to the arm head 2A, and an arm piece 2C attached to the retainer 2B. In the wiper device including the wiper assembly 1, the arm head 2A is linked to a drive mechanism (not shown). As a result, the wiper blade 3 held by the wiper arm 2 is driven by the drive mechanism via the wiper arm 2.

The wiper blade 3 includes a blade rubber 4 which is a wiping member for wiping a surface to be wiped (for example, a glass surface of an automobile), and a support portion 5 for holding the blade rubber 4. The support portion 5 includes a primary lever 6 arranged at the center in the longitudinal direction and secondary levers 7 on both sides rotatably connected to both sides of the primary lever 6. A mounting opening 6B that opens upward is formed in the central portion of the upper surface 6A of the primary lever 6 in the longitudinal direction. Further, a slide member 10 that can slide and move in the longitudinal direction of the wiper blade 3 is provided on the upper surface 6A of the primary lever 6.

2 to 4 show in detail the coupling structure of the wiper arm 2 and the wiper blade 3. As shown, a coupling space 6D is formed below the mounting opening 6B of the primary lever 6 between the side walls 6C and 6C on both the left and right sides of the primary lever 6. In the coupling space 6D, a shaft portion 6E bridged between the side walls 6C and 6C on both sides of the primary lever 6 is arranged, and the clip member 8 is rotatably attached to the shaft portion 6E. ing.

On the other hand, the tip end side of the arm piece 2C is folded back to the opposite side in the longitudinal direction to form a U-shaped curved hook portion 2D. Further, the tip of the hook portion 2D (wiper arm 2) is a tip portion 2E curved in an arc shape. In the hook portion 2D, the wiper arm 2 is attached to the clip member 8 so that the wiper arm 2 is rotatably coupled to the wiper blade 3 (primary lever 6).

As shown alone in FIG. 5, the clip member 8 includes side wall portions 8A and 8A on both sides and a fitting portion 8B arranged between the side wall portions 8A and 8A. The fitting portion 8B is a portion to which the hook portion 2D of the wiper arm 2 is fitted, and has an outer shape that fits exactly into the U-shaped inner shape of the hook portion 2D. A space portion 8C is formed between the side wall portions 8A and 8A on both sides in front of the fitting portion 8B, and the hook portion 2D is formed by introducing the rearward end portion 2G of the hook portion 2D into the space portion 8C. It can be fitted to the fitting portion 8B.

The clip member 8 includes a shaft hole 8D penetrating in the lateral direction. The shaft hole 8D extends through the side wall portions 8A and 8A on both the left and right sides and the fitting portion 8B. Further, an introduction portion 8E is formed below the shaft hole 8D so that the shaft portion 6E of the primary lever 6 can be fitted into the shaft hole 8D through the introduction portion 8E. By fitting the shaft portion 6E into the shaft hole 8D, the clip member 8 is rotatably attached to the wiper blade main body (the entire configuration of the wiper blade 2 other than the clip member 8).

The slide member 10 is a holding member that holds the hook portion 2D at an appropriate position so as not to fall off from the clip member 8, and is a front end portion 8F side of the clip member 8 (the tip portion of the hook portion 2D attached to the clip member 8). It is located on the 2E side). The slide member 10 can slide and move in the longitudinal direction with respect to the primary lever 6, for example, by engaging with rails (not shown) formed on both side edges of the mounting opening 6B. As a result, most of the slide member 10 is arranged on the mounting opening 6B, and the closing position (position shown in FIGS. 2 to 4) for closing a part of the mounting opening 6B and the mounting opening It can be selectively arranged at a retracted position (see FIGS. 8 and 9) that moves forward from 6B (left side of FIGS. 2 and 3) and deviates from the mounting opening 6B.

As shown alone in FIG. 6, the slide member 10 includes a lid portion 11 arranged along the upper surface 6A of the primary lever 6 and a holder portion 12 extending downward from the rear portion 11A of the lid portion 11. .. The lid portion 11 is a rectangular plate-shaped portion having substantially the same width as the mounting opening 6B, and when the slide member 10 moves, it slides along the upper surface 6A of the primary lever 6.

At the rear end of the holder portion 12, a fitting surface 12A curved in an arc shape that just fits with the tip portion 2E of the hook portion 2D is formed. As shown in FIGS. 1 to 4, when the slide member 10 is in the closed position, the tip portion 2E engages (engages) with the fitting surface 12A, so that the hook portion 2D of the wiper arm 2 becomes the clip member 8 The slide member 10 is held at a predetermined position in the coupling space 6D in a state of being correctly mounted on the vehicle. On the upper side of the fitting surface 12A of the holder portion 12, a rear protruding portion 12B that protrudes rearward along with the curvature of the fitting surface 12A is formed adjacent to the fitting surface 12A.

A locking projection 11C is provided on the lower surface 11B of the lid 11 so as to be located slightly in front of the holder 12. On the other hand, a locking recess 6F into which the locking projection 11C is fitted is formed on the upper surface 6A of the primary lever 6. The locking recess 6F is formed adjacent to the front end edge 6G of the mounting opening 6B, and includes an introduction portion 6H opened in the front end edge 6G.

With such a configuration, when the slide member 10 is moved to the retracted position, the locking projection 11C is introduced into the locking recess 6F through the introduction portion 6H. As a result, the slide member 10 that has moved to the retracted position is temporarily fixed to the retracted position by locking the locking projection 11C to the locking recess 6F. That is, the locking protrusion 11C and the locking recess 6F form a locking means for locking the slide member 10 to the retracted position.

Next, the work of removing the wiper arm 2 from the wiper blade 3 will be described with reference to FIGS. 2, 3 and 7 to 10. As shown in FIG. 2, when the wiper arm 2 and the wiper blade 3 are connected, the wiper arm 2 is arranged substantially parallel to the wiper blade 3, and the slide member 10 is arranged at a closed position. As a result, the fitting surface 12A of the slide member 10 engages (fits) with the tip portion 2E of the hook portion 2D of the wiper arm 2 to hold the hook portion 2D. Further, the lid portion 11 of the slide member 10 covers a portion (front side of the tip portion 2E) where the wiper arm 2 does not exist in the mounting opening 6B.

As shown in FIG. 3, during wiping (when wiping the wiped surface with the wiper blade 3), the wiper arm 2 is slightly upward from a position parallel to the wiper blade 3 as shown in FIG. It is in a rotated position (in the upright direction). Even in this state, the contact portion of the slide member 10 with the fitting surface 12A in the hook portion 2D remains within the arc shape of the tip portion 2E (hook portion 2D), so that the fitting surface 12A engages with the hook portion 2D. It continues to fit (fit), and the slide member 10 continues to be arranged in the closed position.

Therefore, at the time of wiping, the hook portion 2D of the wiper arm 2 is continuously held by the slide member 10 at a predetermined position (position correctly attached to the clip member 8) in the coupling space 6D. Therefore, the wiper blade 3 does not come off from the wiper arm 2, and stable wiping work can be performed. Further, since the portion of the mounting opening 6B where the wiper arm 2 does not exist is entirely covered by the lid portion 11 of the slide member 10 in the closed position, the aesthetic appearance of the wiper assembly 1 is maintained.

When the wiper arm 2 is removed from the wiper blade 3, as shown in FIG. 7, the wiper arm 2 is further rotated upward beyond the rotation position at the time of wiping shown in FIG. 3 (FIG. 7). , This rotation direction is indicated by an arrow). As a result, the hook portion 2D of the wiper arm 2 greatly changes the angle with respect to the fitting surface 12A of the slide member 10, so that the engagement (fitting) between the fitting surface 12A and the hook portion 2D (tip portion 2E) is engaged. It comes off.

Further, since the flat upper surface 2F of the hook portion 2D of the wiper arm 2 (the flat portion adjacent to the rear of the arc shape of the tip portion 2E) comes into contact with the rear protruding portion 12B of the slide member 10, the slide member 10 can be moved. It is pushed slightly forward (retracted position side) from the closed position. The amount of the slide member 10 pushed out to the retracted position side can be appropriately adjusted by the amount of protrusion of the rear protruding portion 12B.

In this way, simply by rotating the wiper arm 2 in the upright direction, the hook portion 2D of the wiper arm 2 and the holder portion 12 of the slide member 10 are disengaged, and the slide member 10 is slightly forward from the closed position. It will be in the state of moving to. Therefore, the user can easily manually slide the slide member 10 in this state toward the retracted position.

As shown in FIGS. 8 and 9, when the slide member 10 moves to the retracted position, the mounting opening 6B has a gap in the mounting opening 6B for removing the hook portion 2D of the wiper arm 2 from the clip member 8. Formed in front of 8. Further, since the locking protrusion 11C of the slide member 10 is fitted and locked in the locking recess 6F of the primary lever 6, the slide member 10 is temporarily fixed at the retracted position.

When the slide member 10 is retracted with the wiper arm 2 tilted in this way, the hook portion of the wiper arm 2 is moved from this state by moving the wiper arm 2 downward as shown in FIG. The wiper arm 2 can be removed from the wiper blade 3 by removing the 2D from the fitting portion 8B of the clip member 8. In this way, the work of rotating the wiper arm 2 with respect to the wiper blade main body is one of the work of disengaging the slide member 10 and the hook portion 2D and removing the hook portion 2D from the clip member 8. It is also a department. Therefore, the work of removing the wiper arm 2 from the wiper blade 3 can be performed by a series of operations of tilting the wiper arm 2 and moving it downward.

Further, during this removal operation, the slide member 10 is temporarily fixed at the retracted position, so that the slide member 10 does not move to a position where it interferes with the wiper arm 2. Therefore, the slide member 10 does not interfere with the removal work of the wiper arm 2, and the removal work can be performed stably and smoothly.

As described above, according to the coupling structure of the wiper blade 3 and the wiper arm 2 of the present embodiment, the holding state of the hook portion 2D (coupling portion) of the wiper arm 2 by the slide member 10 (holding member) is released (tip portion). (Disengagement of the engagement state between 2E and the fitting surface 12A) can be performed simply by rotating the wiper arm 2 significantly in the upright direction beyond the rotation angle at the time of wiping. Further, the slide member 10 after the fitting with the hook portion 2D is released can be easily slid to the retracted position by an operation with a fingertip. Further, since the slide member 10 is temporarily fixed by locking to the locking protrusion 11C and the locking recess 6F at the retracted position, the wiper arm 2 and the slide member are removed in the work of removing the wiper arm 2 from the wiper blade 3. The 10 does not interfere. Therefore, the work of removing the wiper arm 2 from the wiper blade 3 can be performed extremely easily and efficiently.

1 Wiper assembly 2 Wiper arm 2A Arm head 2B retainer 2C Arm piece 2D Hook part 2E Hook part tip 2F Hook part flat top surface 2G Hook part rearward end 3 Wiper blade 4 Blade rubber 5 Support part 6 Primary lever 6A Upper surface of primary lever 6B Mounting opening 6C Side wall of primary lever 6D Coupling space 6E Shaft 6F Locking recess 6G Front edge of mounting opening 6H Introducing part 7 Secondary lever 8 Clip member 8A Side wall part 8B Fitting part 8C Space part 8D Shaft hole 8E Introductory part 10 Slide member 11 Lid part 11A Rear part of lid 11B Lower surface of lid 11C Locking protrusion 12 Holder part 12A Fitting surface 12B Rear protruding part

Claims (4)

In the combined structure of the wiper blade and the wiper arm,
The wiper blade is arranged on a clip member rotatably provided with respect to the wiper blade main body, a mounting opening formed on the upper surface of the wiper blade and opened above the clip member, and an upper surface of the wiper blade. The wiper blade is provided with a slide member that can slide and move along the upper surface of the wiper blade.
The wiper arm includes a joint that is attached to the clip member.
The slide member is movable between a closing position arranged on the mounting opening and a retracting position moved from the closing position toward a position outside the mounting opening.
The slide member engages with the joint portion to hold the joint portion at the closed position.
A coupling structure of a wiper blade and a wiper arm so that the wiper arm and the slide member are disengaged by rotating the wiper arm together with the clip member with respect to the wiper blade main body. The joint portion of the wiper arm is a hook portion formed by folding back the end portion of the wiper arm and having a curved tip portion.
The coupling structure of the wiper blade and the wiper arm according to claim 1, wherein the slide member has a curved fitting surface that fits to the tip of the hook portion. The hook portion has a flat surface adjacent to the tip portion and has a flat surface.
The slide member is provided adjacent to the fitting surface and has a protruding portion protruding toward the hook portion.
When the wiper arm is rotated with respect to the wiper blade body until the fitting surface and the tip portion are disengaged, the flat surface comes into contact with the protruding portion, so that the slide member is moved to the retracted position side. The coupling structure of the wiper blade and the wiper arm according to claim 2, which is extruded to. The coupling structure of the wiper blade and the wiper arm according to any one of claims 1 to 3, further comprising a locking means for locking the slide member to the retracted position.

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