JP4370961B2 - Wiper device - Google Patents

Description

  The present invention relates to a wiper device including a wiper arm and a wiper blade, and more particularly to a structure for attaching the wiper blade to the wiper arm.

  As for the attachment structure of the wiper arm and the wiper blade, for example, as described in Patent Document 1, a hook is formed by curving the tip of a thin plate-like wiper arm in a U-shape. A wiper blade is known that is locked to a clip that is rotatable with respect to a refill (blade rubber). That is, as shown in FIG. 12, the wiper blade is provided with a clip 3 that is pin-connected to the primary lever 1 by a rivet 2, and the clip 3 is formed with a block-shaped main body portion 4 and flange portions 5 and 5. The hook 6 of the wiper arm is engaged with the clip 3 so that the end faces 7 and 7 in the width direction are sandwiched between the flange portions 5 and 5.

However, in such a U-shaped hook-type wiper device, the end face 7 of the narrow plate-like hook 6 has a small height d, and only a part of the end face 7 abuts against the flange portion 5. Therefore, there has been a problem that rattling is likely to occur in the left-right direction in FIG. Even if the rivet is inserted into the reference shaft hole in Patent Document 1, there is still room for improvement.
Japanese Utility Model Publication No. 2001-122084

The present invention has been made in view of the above problems, and an object of the present invention is to provide a wiper device and its wiper blade that can more reliably prevent play between the wiper arm and the wiper blade. .

In order to solve the above-mentioned problem, the invention according to claim 1 includes a retainer having a pair of side walls opposed to each other and an upper wall connecting the pair of side walls and having a U-shaped cross section, and straddles the pair of side walls. A wiper arm having a shaft, a pair of contact walls that directly or indirectly contact the pair of side walls from the inside, and a connecting wall that connects the upper edges of the pair of contact walls. an arm attachment portion attached to the wiper arm exhibits a shape, and a wiper blade having a pair of clip provided slidably along the extending direction of the arm attachment portion between the abutment wall provided, said arm mounting portion, toward the connecting wall from the pair of abutting walls, and the diameter of the shaft so as to restrict movement to the extending direction of the shaft while allowing insertion from above of the shaft Almost identical Has a notch formed along the vertical direction with a width, the clip is fixed to said arm mounting portion and the engaging portion at a predetermined sliding position of the extending direction for engagement with the shaft The engaging portion includes a groove portion extending along the extending direction with substantially the same width as the diameter of the shaft, and an overlapping portion of the shaft to the groove portion by overlapping the notch. An entrance portion that communicates from above with one end of the groove portion to allow entry, and the fixing portion includes the entrance portion and the shaft inserted into the notch in a state where the entry portion overlaps the notch. The clip can be fixed at a slide position that enters the groove portion while being located in the notch, and when the clip is fixed by the fixing portion, the groove portion of the engaging portion is inserted into the notch. said Schaff The shaft by engaging is characterized in that to regulate the moving upward a wiper device for retaining fit the shaft.

  According to a second aspect of the present invention, in the wiper device according to the first aspect, the wiper arm includes a spacer having a pair of opposing walls located inside the pair of side walls, and the pair of contact walls includes: The pair of side walls indirectly contact with each other through the pair of opposing walls.

The invention according to claim 3, in wiper device according to claim 1 or claim 2, wherein the connecting wall of the arm mounting portion is provided so that a part is covered with the upper wall of said retainer, said The connecting wall is characterized in that a step is formed so that the height of the upper surface of the portion not covered by the upper wall and the upper surface of the upper wall are substantially the same.

According to a fourth aspect of the present invention, there is provided a wiper arm having a pair of side walls opposed to each other and an upper wall connecting the pair of side walls and having a U-shaped cross section, and a shaft straddling the pair of side walls. In order to enable attachment, the cross section includes a pair of contact walls that directly or indirectly contact the pair of side walls from the inside and a connection wall that connects upper edges of the pair of contact walls. A wiper blade having an U-shaped arm attachment portion attached to the wiper arm, and a clip provided slidably along the extending direction of the arm attachment portion between the pair of contact walls. The arm mounting portion has a diameter of the shaft to restrict the movement of the shaft in the extending direction while allowing the shaft to be inserted from above the pair of abutting walls to the connecting wall. Abbreviation The clip has a notch formed along the vertical direction with a single width, and the clip includes an engagement portion for engagement with the shaft, and the arm attachment portion at a predetermined slide position in the extending direction. A fixing portion for fixing to the groove, the engaging portion having a width substantially the same as the diameter of the shaft and extending along the extending direction, and overlapping the notch so as to overlap the groove portion. An entrance portion communicating from above with one end of the groove portion to allow the shaft to enter, and the fixing portion is inserted into the entry portion and the notch in a state where the entry portion overlaps the notch. The clip can be fixed at a slide position where the shaft enters the groove part while being located in the notch, and when the clip is fixed by the fixing part, the groove part of the engaging part is inserted into the notch. Said To regulate that the shaft by engaging the shift is moved upward, characterized in Oh Rukoto wiper blade for retaining fit the shaft.

  According to the present invention, the wiper arm includes a pair of side walls facing each other and a retainer having a U-shaped cross section having an upper wall connecting them, and a shaft straddling the pair of side walls, The arm mounting portion in which the pair of side walls are in direct or indirect contact with the pair of side walls and formed with a pair of contact walls having a notch, and the notch provided between the pair of contact walls. Since the clip that engages with the inserted shaft is provided, the pair of abutting walls of the wiper blade are widely supported in a planar shape from the outside by the pair of side walls of the wiper arm. Further, since the torsional rigidity of the wiper arm has a U-shaped cross section, the backlash generated between the wiper arm and the wiper blade is effectively prevented.

  In addition, since the arm attachment portion and the clip of the wiper blade are disposed inside the U shape of the wiper arm, it is possible to save space and improve the appearance of the attachment location of the wiper arm and the wiper blade. In particular, according to the third aspect of the invention, the height positions of the upper surface of the wiper arm and the upper surface of the wiper blade are aligned by the stepped portion, so that the appearance of the wiper device can be improved.

  The wiper structure according to the present invention has an effect that it is possible to effectively prevent backlash generated between the wiper arm and the wiper blade.

  The best mode for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 shows a wiper device according to this embodiment. The wiper device 8 includes a wiper arm 9 and a wiper blade 10 detachably attached to the wiper arm 9. The wiper arm 9 is connected to a wiper motor (not shown) via a wiper link, and reciprocates on the front window 11 of the vehicle by driving the wiper motor. The wiper blade 10 is a so-called tournament type, and includes a primary lever 12, a secondary lever 13, a yoke 14, a vertebra 15, a blade rubber 16, and a clip 17 (see FIG. 3) as arm mounting portions.

  As shown in FIG. 2, the assembly of the wiper arm 9 includes a metal retainer 18 and a metal or resin spacer 19. The retainer 18 includes a pair of side walls 20, 20 facing each other and an upper wall 21 that connects the upper edges of the side walls 20, 20, and has a U-shaped cross section that opens downward. Insertion holes 22 and 22 are formed at positions of the side walls 20 and 20 facing each other.

  Similarly to the retainer 18, the spacer 19 has a U-shaped cross section that opens downward, and includes side walls 23 and 23 and an upper wall 24. The side wall 23 is positioned so as to contact the inside of the side wall 20 except for the end portion 25, and the upper wall 24 is positioned so as to contact the inside of the upper wall 21 except for the end portion 26. Insertion holes 27 and 27 are formed in the side walls 23 and 23 at positions overlapping with the insertion holes 22 and 22, and the retainer 18 and the spacer 19 are pin-connected by a rivet 28 as a shaft through which the insertion holes 22 and 27 are inserted. .

  As shown in FIG. 3, the assembly of the wiper blade 10 includes a metal primary lever 12 having a U-shaped cross section that opens downward, and a resin clip 17 provided inside the primary lever 12. Specifically, the primary lever 12 includes a pair of side walls 29, 29 and an upper wall 30 that connects the upper edges of the side walls 29, 29, and the diameter of the rivet 28 is approximately equal from the upper wall 30 to the side walls 29, 29. A groove-shaped notch 31 having the same width is formed along the vertical direction. In addition, approximately the center in the vertical direction of the side wall 29 corresponds to the rear side of the notch 31 (the base end side of the wiper arm to which the wiper blade is attached (base end side of the wiper device), for example, the right side in FIG. ) And a holding piece 33 that protrudes inward and holds the clip 17 slidably along the extending direction of the primary lever 12 is formed at the lower edge of the side wall 29. .

  The clip 17 includes a block-shaped main body 34, an upper wall 35 formed by extending the upper portion of the main body 34 rearward, and flexible walls 36 and 36 extending downward from the side edges of the upper wall 35. . An engagement groove 37 having substantially the same width as the diameter of the rivet 28 is formed in the main body 34. The engagement groove 37 includes a vertical groove portion 38 extending in the vertical direction and a horizontal groove portion 39 extending rearward along the extending direction of the primary lever 12 from the lower portion of the vertical groove portion 38 and has an L shape in side view. . Further, a locking claw 40 that protrudes outward is provided at a substantially vertical center of the flexible wall 36, and a knob portion 41 that is exposed from the side wall 29 is provided at the lower end of the flexible wall 36. . When the clip 17 is provided on the inner side of the primary lever 12, the flexible wall 36 is elastically deformed and bent when the locking claw 40 hits the inner surface of the side wall 29, and the locking claw 40 is locked in the locking hole 32. The bending is removed only when it is done.

  When attaching the wiper blade 10 to the wiper arm 9, the operator first adjusts the slide position of the clip 17 with respect to the primary lever 12 so that the longitudinal groove portion 38 overlaps the notch 31, and the notch 31 and the longitudinal groove portion 38. The wiper blade 10 is attached to the wiper arm 9 so that the rivet 28 is inserted into the wiper arm 9 (FIG. 4A). Next, the operator picks the knob 41 and bends the flexible wall 36 further inward so that the rivet 28 enters the lateral groove 39 with the rivet 28 positioned at the notch 31 to move the clip 17 forward (with the tip of the wiper device). Slide in the direction (FIG. 4B). Then, when the locking claw 40 is locked in the locking hole 32 and the clip 17 is fixed, the rivet 28 is restrained by the notch 31 in the front-rear direction and the lateral groove 39 in the vertical direction, thereby preventing the rivet 28 from being removed. The wiper blade 10 is held on the wiper arm 9 in a state in which the wiper blade 10 can rotate relative to the rivet 28 (FIGS. 4C and 5).

  On the other hand, when removing the wiper blade 10 from the wiper arm 9, the procedure may be reversed. The operator picks the knob 41 and bends the flexible wall 36 inward to lock the locking claw 40. Then, the clip 17 is slid rearward to superimpose the vertical groove 38 on the notch 31, and the wiper blade 10 is removed from the wiper arm 9 so that the rivet 28 can be removed from the notch 31 and the vertical groove 38 in this state.

  In the wiper device according to this embodiment, the side walls 29, 29 of the primary lever 12 are supported in a planar shape from the outside by the side walls 20, 20 of the retainer 18 via the side walls 23, 23 of the spacer 19 (dimensions in FIG. 5). D). Further, the retainer 18, the spacer 19, and the primary lever 12 all have a U-shaped cross section, and the torsional rigidity of the wiper arm 9 and the wiper blade 10 is enhanced. The play is effectively suppressed.

  In addition, since the primary lever 12 and the clip 17 are disposed inside the U-shape of the wiper arm 9, the height of the mounting location of the wiper arm 9 and the wiper blade 10 can be kept low, and space can be saved. The mounting structure can be covered with the wiper arm 9 to improve the appearance.

  FIG. 6 shows each assembly of the wiper arm and the wiper blade of the wiper device according to the present embodiment. Since the wiper arm is the same as the wiper arm 9 in the first embodiment, the corresponding parts are denoted by the same reference numerals and description thereof is omitted. The wiper blade 42 includes a metal primary lever 43 having a U-shaped cross section that opens downward, and a resin clip 44 provided inside the primary lever 43.

The primary lever 43 includes a pair of side walls 45, 45 and an upper wall 46 that connects the upper edges of the side walls 45, 45. The width from the upper wall 46 to the side walls 45, 45 is substantially the same as the diameter of the rivet 28. A groove-shaped notch 47 having a shape is formed along the vertical direction. A long hole 48 along the extending direction of the primary lever 43 is formed on the front side of the notch 47 at a substantially vertical center of the side wall 45. Further, a step 49 is formed in front of the notch 47 in the upper wall 46, and a circular locking hole 50 is formed further in front of the step 49. The height h ₁ of the stepped portion 49 corresponds to the thickness of the wiper arm 9 (the thickness where the upper wall 21 of the retainer 18 and the upper wall 24 of the spacer 19 overlap).

  The clip 44 includes a block-shaped main body 51, a thin plate-like flexible piece 52 formed by extending the central upper portion of the main body 51 in the width direction, and a side wall formed by extending the side of the main body 51 forward. 53, 53. The main body 51 is provided with a ceiling wall 54 and a bottom wall 55 that extend rearward along the extending direction of the primary lever 43, and the ceiling wall 54 and the bottom wall 55 are divided into upper and lower portions along the same direction. A lateral groove 56 is formed. The groove width of the horizontal groove 56 is substantially the same as the diameter of the rivet 28, and the bottom wall 55 protrudes rearward from the top wall 54, so that the approach path leading from the upper part of the main body 51 to the horizontal groove 56 is formed behind the top wall 54. 57 is formed. On the other hand, a stepped portion 58 having a shape corresponding to the stepped portion 49 is formed on the upper surface of the main body 51, and a circular locking projection 59 is provided on the upper surface of the flexible piece 52. The knob portion 60 is integrally formed so as to face obliquely downward. When the clip 44 is provided on the inner side of the primary lever 43, the flexible piece 52 is elastically deformed downward when the locking projection 59 hits the inner surface of the upper wall 46, and the locking projection 59 is engaged with the locking hole 50. The deflection is removed only when it stops. Further, the side wall 53 is formed with an engaging convex portion 61 that engages with the long hole 48.

  When attaching the wiper blade 42 to the wiper arm 9, the operator first adjusts the slide position of the clip 44 with respect to the primary lever 43 so that the entry path 57 overlaps the notch 47. The wiper blade 42 is attached to the wiper arm 9 so that the rivet 28 is inserted into the wiper arm 9 (FIG. 7A). Next, the operator slides the clip 44 rearward while keeping the engaging projection 61 along the elongated hole 48 so that the rivet 28 enters the lateral groove 56 with the rivet 28 positioned in the notch 47 (FIG. 7B). . When the locking projection 59 is locked in the locking hole 50 and the clip 44 is fixed, the rivet 28 is restrained by the notch 47 in the front-rear direction and the lateral groove 56 in the vertical direction, thereby preventing the wiper 28 from being removed. The blade 42 is held on the wiper arm 9 in a state of being relatively rotatable about the rivet 28 (FIG. 7C).

  On the other hand, when removing the wiper blade 42 from the wiper arm 9, the operator grasps the knob portion 60, deflects the flexible piece 52 downward to release the locking projection 59, and slides the clip 44 forward. Then, the entry path 57 is overlapped with the notch 47, and the wiper blade 42 is removed from the wiper arm 9 so that the rivet 28 is removed from the notch 47 and the entry path 57 in this state.

  In the wiper device according to this embodiment, the height positions of the upper surface of the wiper arm 9 and the upper surface of the wiper blade 42 are aligned by the stepped portion 49 as shown in FIG. 7C, and therefore, from the wiper arm 9 to the wiper blade 42. Can be seen integrally, and the appearance of the wiper device can be improved.

  FIG. 8 shows assemblies of the wiper arm and the wiper blade of the wiper device according to the present embodiment. The wiper arm is the same as in the second embodiment, and the wiper blade 62 includes a metal primary lever 63 having a U-shaped cross section that opens downward, and a resin clip 64 provided inside the primary lever 63. Have

  Since the primary lever 63 is the same except for the primary lever 43 and the presence or absence of the locking hole 50 in the second embodiment, the corresponding parts are denoted by the same reference numerals and description thereof is omitted. The clip 64 includes a block-shaped main body portion 65, and the main body portion 65 is provided with a top wall 66 and a bottom wall 67 extending rearward along the extending direction of the primary lever 63. By dividing the top wall 66 and the bottom wall 67 vertically, a lateral groove 68 is formed in the clip 64 along the extending direction of the primary lever 63. The groove width of the horizontal groove 68 is substantially the same as the diameter of the rivet 28, and the bottom wall 67 protrudes rearward from the top wall 66, so that the approach path leading from the upper part of the main body 65 to the horizontal groove 68 is formed behind the top wall 66. 69 is formed. Further, the bottom wall 67 is divided into three in the width direction. When a central portion thereof is designated as a flexible piece and denoted by reference numeral 70, an engagement protrusion 71 is provided on the upper surface of the flexible piece 70, and the rear portion of the flexible piece 70 is provided. The knob portion 72 is integrally molded in a diagonally downward direction. On the other hand, a stepped portion 73 having a shape corresponding to the stepped portion 49 is formed on the upper surface of the main body portion 65, and an engaging convex portion 74 that engages with the long hole 48 is formed on the side surface of the main body portion 65.

  When attaching the wiper blade 62 to the wiper arm 9, the operator first adjusts the slide position of the clip 64 with respect to the primary lever 63 so that the entry path 69 overlaps the notch 47. The wiper blade 62 is attached to the wiper arm 9 so that the rivet 28 is inserted into the wiper arm 9 (FIG. 9A). Next, the operator slides the clip 64 rearward while keeping the engaging convex portion 74 along the elongated hole 48 so that the rivet 28 enters the lateral groove 68 while being located in the notch 47 (FIG. 9B). . Then, when the rivet 28 passes over the engagement protrusion 71 while being bent by bending the flexible piece 70 and is engaged therewith, the clip 64 is fixed at the slide position, and the rivet 28 is vertically moved to the notch 47 and vertically. The direction is regulated by the lateral groove 68 and is prevented from being removed, whereby the wiper blade 62 is held on the wiper arm 9 in a state of being relatively rotatable about the rivet 28 (FIG. 9C).

On the other hand, when removing the wiper blade 62 from the wiper arm 9, the operator grasps the knob portion 72 and slides the clip 64 forward while bending the flexible piece 70, and the entry path 69 overlaps the notch 47. In this state, the wiper blade 62 is removed from the wiper arm 9 so that the rivet 28 is removed from the notch 47 and the entry path 69.
(Reference example)

FIG. 10 shows each assembly of a wiper arm and a wiper blade of a wiper device according to a reference example. The wiper arm is the same as in the second embodiment, and the wiper blade 75 includes a metal primary lever 76 having a U-shaped cross section that opens downward, and a resin clip 77 provided inside the primary lever 76. Have

The primary lever 76 includes a pair of side walls 78, 78 and an upper wall 79 that connects the upper edges of the side walls 78, 78. The width from the upper wall 79 to the side walls 78, 78 is substantially the same as the diameter of the rivet 28. A groove-shaped notch 80 having the shape is formed. The notch 80 includes a vertical groove portion 81 extending in the vertical direction and a horizontal groove portion 82 extending forward from the lower portion of the vertical groove portion 81 along the extending direction of the primary lever 76, and has an L shape in side view. A step 83 is formed in front of the notch 80 in the upper wall 79, and a circular engagement hole 84 is formed in front of the step 83 in the side wall 78. The height h ₂ of the stepped portion 79 corresponds to the thickness of the wiper arm 9 (the thickness of the portion where the upper wall 24 are overlapped top wall 21 and the spacer 19 of the retainer 18).

  The clip 77 includes a pair of side walls 85, 85, an upper wall 86 that connects the upper edges of the side walls 85, 85, and an engagement piece 87 provided at the rear edge of the upper wall 86. Engagement projections 88 that engage with the engagement holes 84 are formed on the side wall 85. The engaging piece 87 has a hook shape along the outer peripheral surface of the rivet 28, and a knob portion 89 is integrally formed at the rear end portion thereof obliquely downward.

  When attaching the wiper blade 75 to the wiper arm 9, the operator first attaches the wiper blade 75 to the wiper arm 9 so that the rivet 28 is inserted into the longitudinal groove portion 81 (FIG. 11A). Next, the operator slides the entire wiper blade 75 backward while bending the knob portion 89 so that the rivet 28 enters the lateral groove portion 82 (FIG. 11B). When the rivet 28 is engaged with the engagement piece 87, the rivet 28 is restrained by the engagement piece 87 in the front-rear direction and the lateral groove portion 82 in the up-down direction, thereby preventing the wiper blade 75 from being wiped by the wiper arm. 9 is held in a state in which it can be rotated relative to the rivet 28 as an axis (FIG. 11C).

  On the other hand, when removing the wiper blade 75 from the wiper arm 9, the operator holds the knob portion 89 and slides the wiper blade 75 forward while bending the engaging piece 87 downward, so that the rivet 28 is removed from the lateral groove portion 82. The wiper blade 75 is removed from the wiper arm 9 so as to come out of the wiper blade 75 through the longitudinal groove portion 81.

The present invention is not limited to the above-described form. For example, in each of the above embodiments and reference examples , the side wall of the primary lever is in contact with the side wall of the retainer via the side wall of the spacer. The side wall may directly contact the side wall of the retainer. The wiper blade may not be of the tournament type.

1 is an explanatory diagram illustrating a wiper device according to a first embodiment. FIG. 2A is an exploded perspective view of the wiper arm of FIG. 1, and FIG. 2B is a perspective view of the wiper arm. (A) is an exploded perspective view of the wiper blade of FIG. 1, and (B) is a perspective view of the wiper blade. (A) is an explanatory view showing a state in which the wiper blade is attached to the wiper arm so that the rivet of the wiper arm of FIG. 2 is inserted into the notch and vertical groove of the wiper blade of FIG. Explanatory drawing which shows the state inserted in the groove part, (C) is explanatory drawing which shows the state which made the rivet slide into a horizontal groove part by sliding a clip, locked the clip, and pulled out the rivet. It is sectional drawing in the position along the VV line of FIG.4 (C). (A) is an exploded perspective view of a wiper arm of a wiper device concerning Example 2, and (B) is an exploded perspective view of a wiper blade concerning the wiper device. (A) is an explanatory view showing a state in which the wiper blade is attached to the wiper arm so that the rivet of the wiper arm of FIG. 6 (A) is inserted into the notch and the approach path of the wiper blade of FIG. 6 (B). Explanatory drawing which shows the state where the rivet was inserted into the notch and the approach path, (C) is an explanatory view showing a state where the clip is slid to move the rivet into the lateral groove, the clip is locked and the rivet is removed. . (A) is an exploded perspective view of a wiper arm of a wiper device concerning Example 3, and (B) is an exploded perspective view of a wiper blade concerning the wiper device. 8A is an explanatory view showing a state in which the wiper blade is attached to the wiper arm so that the rivet of the wiper arm of FIG. 8A is inserted into the notch and the approach path of the wiper blade of FIG. 8B. Explanatory drawing which shows the state where the rivet was inserted into the notch and the approach path, (C) is an explanatory view showing a state where the clip is slid to move the rivet into the lateral groove, the clip is locked and the rivet is removed. . (A) is an exploded perspective view of a wiper arm of a wiper device concerning a reference example , and (B) is an exploded perspective view of a wiper blade concerning the wiper device. (A) is an explanatory view showing a state where the wiper blade is attached to the wiper arm so that the rivet of the wiper arm of FIG. 10 (A) is inserted into the longitudinal groove of the wiper blade of FIG. 10 (B), and (B) is the rivet Is an explanatory view showing a state in which is inserted into the lateral groove portion, (C) is an explanatory view showing a state in which the clip is engaged with the rivet and the rivet is prevented from being removed. It is sectional drawing which shows the attachment structure of the wiper arm and wiper blade in the conventional wiper apparatus.

Explanation of symbols

8 Wiper device 9 Wiper arm 10 Wiper blade 12 Primary lever (arm mounting part)
17 Clip 18 Retainer 19 Spacer 20 Side wall 21 Upper wall 23 Side wall (opposite wall)
28 Rivet (shaft)
29 Side wall (contact wall)
30 Upper wall (connection wall)
31 Notch 37 Engagement groove (engagement part)
38 Longitudinal groove (entrance)
39 Horizontal groove (groove)
42 Wiper blade 43 Primary lever (arm mounting part)
44 Clip 45 Side wall (contact wall)
46 Upper wall (connection wall)
47 Notch 49 Step 56 Horizontal groove (groove)
57 Approach road (entrance part)
62 Wiper blade 63 Primary lever (arm mounting part)
64 Clip 68 Horizontal groove (groove)
69 Approach road (entrance part)
75 Wiper blade 76 Primary lever (arm mounting part)
77 Clip 78 Side wall (contact wall)
79 Upper wall (connection wall)
81 Vertical groove part 82 Horizontal groove part 87 Engagement piece (engagement part)

Claims (4)

A wiper arm having a pair of side walls facing each other and an upper wall connecting the pair of side walls and having a U-shaped cross section; and a shaft straddling the pair of side walls;
The wiper arm has a pair of contact walls that contact the pair of side walls directly or indirectly from the inside and a connecting wall that connects the upper edges of the pair of contact walls and has a U-shaped cross section. an arm attachment portion attached, and a wiper blade having a pair of clip provided slidably along the extending direction of the arm attachment portion between the abutment wall,
Wherein the arm mounting portion, toward the connecting wall from the pair of abutment walls, substantially the same diameter of the shaft and so as to restrict movement to the extending direction of the shaft while allowing insertion from above of the shaft Having a notch formed along the vertical direction with a width of
The clip has an engaging portion for engaging with the shaft, and a fixing portion for fixing to the arm mounting portion at a predetermined sliding position in the extending direction,
The engaging portion is provided at one end of the groove portion so as to allow the shaft to enter the groove portion by overlapping with the groove portion and a groove portion extending along the extending direction with substantially the same width as the diameter of the shaft. An entry portion communicating from above,
The fixing portion is capable of fixing the clip at a slide position where the entrance portion and the shaft inserted into the notch enter the groove portion while being located in the notch in a state where the entry portion overlaps the notch. Yes,
The clip, the once fixed by the fixing unit, the shaft to regulate that the shaft is moved upward by the groove of the engaging portion is engaged with the inserted said shaft to said notch Wiper device characterized by retaining The wiper device according to claim 1, wherein
The wiper arm includes a spacer having a pair of opposing walls located inside the pair of side walls,
The wiper device according to claim 1, wherein the pair of abutting walls abuts indirectly on the pair of side walls through the pair of opposing walls. The wiper device according to claim 1 or 2,
The connecting wall of the arm mounting portion is provided so that a part thereof is covered with the upper wall of the retainer ,
The wiper device according to claim 1, wherein a step portion is formed on the connecting wall so that the height of the upper surface of the portion not covered by the upper wall and the upper surface of the upper wall are substantially the same. In order to enable attachment to a wiper arm having a pair of side walls facing each other and an upper wall connecting the pair of side walls and having a U-shaped cross section and a shaft straddling the pair of side walls. ,
The wiper arm has a pair of contact walls that contact the pair of side walls directly or indirectly from the inside and a connecting wall that connects the upper edges of the pair of contact walls and has a U-shaped cross section. A wiper blade having an arm attachment portion to be attached and a clip provided slidably along the extending direction of the arm attachment portion between the pair of contact walls;
The arm mounting portion has substantially the same diameter as the shaft so as to restrict the movement of the shaft in the extending direction while allowing the insertion from above the shaft from the pair of abutting walls to the connecting wall. Having a notch formed along the vertical direction with a width of
The clip has an engaging portion for engaging with the shaft, and a fixing portion for fixing to the arm mounting portion at a predetermined sliding position in the extending direction,
The engaging portion is provided at one end of the groove portion so as to allow the shaft to enter the groove portion by overlapping with the groove portion and a groove portion extending along the extending direction with substantially the same width as the diameter of the shaft. An entry portion communicating from above,
The fixing portion is capable of fixing the clip at a slide position where the entrance portion and the shaft inserted into the notch enter the groove portion while being located in the notch in a state where the entry portion overlaps the notch. Yes,
When the clip is fixed by the fixing portion, the groove portion of the engaging portion engages with the shaft inserted into the notch, thereby restricting the shaft from moving upward. A wiper blade characterized by retaining

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