JP2017013697A - Vehicular wiper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mount a cover to a portion on a tip side of a retainer while improving appearance.SOLUTION: In a vehicular wiper device 10, a first engagement claw 94 constituted to be elastically deformable to a base end side of a retainer cover 90 is formed at a tip portion of the retainer cover 90. The first engagement claw 94 is engaged with a first engagement piece 34 of a retainer 30, so as to restrict the movement to a WS glass G side at the tip portion of the retainer cover 90. Thus, while the first engagement piece 34 and the first engagement claw 94 are juxtaposed in the longitudinal direction of the retainer 30, the tip portion of the retainer cover 90 can be mounted to the retainer 30 by the first engagement claw 94. The first engagement claw 94 is engaged with the first engagement piece 34 protruded from a side wall 30B of the retainer 30 to an opening of the retainer 30. Thus, this configuration can inhibit the engagement state of the first engagement claw 94 and the first engagement piece 34 from being visually recognized from the opposite side (arm upper side) to the WS glass G.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle wiper device provided with a cover.

  Some vehicle wiper devices include a cover that closes an opening of a retainer that constitutes a wiper arm (see, for example, Patent Document 1 below). Thereby, the appearance of a retainer can be improved and it can suppress that driving | running | working wind etc. penetrate | invade from the opening part of a retainer. In addition, when attaching a cover to a retainer, a cover can be attached to a retainer with a simple structure by engaging a cover and a retainer.

U.S. Pat. No. 2,850,755

  By the way, generally, the width dimension of the retainer is set so as to become smaller toward the tip side. For this reason, when attaching the front-end | tip part of a cover to the part by the side of the front-end | tip of a retainer, the structure which engages a cover with the side wall of a retainer can be considered, for example. However, in this case, for example, since it is necessary to form a hole or the like for engaging the engagement claw of the cover on the side wall of the retainer, there is a problem that the appearance of the vehicle wiper device is impaired.

  In view of the above facts, an object of the present invention is to provide a vehicle wiper device capable of attaching a cover to a portion on the distal end side of a retainer while improving appearance.

  A vehicle wiper device according to the present disclosure has an arm head that is fixed to a pivot shaft and rotates around the axis of the pivot shaft, and has an elongated shape in which a base end portion is coupled to the arm head, and toward the distal end side. The width dimension is set smaller as it goes, and it is formed in a concave shape opened to the windshield glass side in a cross-sectional view seen from the longitudinal direction, and protrudes inward from the side wall on the one side in the width direction to the opening in the tip side portion. A retainer having a first engagement portion formed thereon, a cover formed in a long plate shape, the base end portion being engaged with the retainer, and closing the opening of the retainer; and a distal end portion of the cover And a first member that is configured to be elastically deformable toward the base end side of the cover and that is engaged with the first engaging portion to restrict the movement of the front end portion of the cover to the windshield glass side. With claws There.

  According to the said structure, the base end part of the retainer which comprises elongate shape is connected with the arm head fixed to the pivot axis | shaft. The width dimension of the retainer is set to be smaller toward the front end side, and the retainer is formed in a concave shape opened to the windshield glass side in a cross-sectional view seen from the longitudinal direction. The opening of the retainer is closed by a cover having a long plate shape, and the base end of the cover is engaged with the retainer.

  Here, a first engagement portion that protrudes inward from the side wall on one side in the width direction of the retainer is formed in the opening in the tip portion of the retainer. Further, a first engagement claw configured to be elastically deformable toward the base end side of the cover is formed at the distal end portion of the cover, and the first engagement claw is engaged with the first engagement portion, Movement to the windshield glass side at the front end of the cover is limited. As a result, the first engagement portion and the first engagement claw are arranged side by side in the longitudinal direction of the retainer, and the displacement direction of the elastic deformation of the first engagement claw is defined as the direction along the longitudinal direction. Can be attached to the retainer. Therefore, the front end portion of the cover can be firmly attached to the retainer by securing a sufficient amount of displacement of the first engaging claw without being limited by the width size even at the front end portion of the retainer having a small width size. In addition, since the first engagement claw is engaged with the first engagement portion protruding from the side wall on one side in the width direction of the retainer to the opening of the retainer, the first engagement claw and the first engagement portion It can suppress that the engagement state is visually recognized from the opposite side to the windshield glass.

  Further, in the vehicle wiper device according to the present disclosure, the retainer has an opening portion on the inner side from the side wall on the one side in the width direction of the retainer at a position on the proximal end side of the retainer with respect to the first engagement portion. A second engaging portion projecting from the cover is formed, and the distal end portion of the cover is elastically deformable toward the distal end side of the cover at a position on the proximal end side of the cover with respect to the first engaging portion. The comprised 2nd engaging claw is formed, The said 2nd engaging claw is engaged with the said 2nd engaging part, and the movement to the windshield glass side of the front-end | tip part of the said cover is restrict | limited.

  According to the said structure, the movement to the windshield glass side in the front-end | tip part of a cover can be restrict | limited also by a 2nd engagement nail in addition to a 1st engagement nail | claw. Further, since the second engagement claw is configured to be elastically deformable toward the front end side of the cover, the movement of the cover in the longitudinal direction can be restricted by the first engagement claw and the second engagement claw.

  Further, in the vehicle wiper device according to the present disclosure, the retainer is attached with a first washer nozzle at a position on a distal end side with respect to the first engagement portion, and a proximal end with respect to the second engagement portion. A second washer nozzle is attached at a position on the side, and the second washer nozzle is accommodated and disposed adjacent to the inner side surface of the side wall on the one side in the width direction of the retainer.

  According to the above configuration, the first engagement claw, the second engagement claw, and the second washer nozzle can be collectively arranged on one side in the width direction of the retainer inside the retainer. As a result, the hose connected to the first washer nozzle disposed on the tip side of the second washer nozzle is connected to the first engagement claw, the second engagement claw, and the second washer nozzle inside the retainer. The retainer can be arranged on the other side in the width direction. Therefore, an efficient arrangement structure can be realized inside the retainer.

  In the vehicle wiper device according to the present disclosure, the second engagement claw is engaged with a portion of the second engagement portion on the distal end side of the retainer, and the proximal end side of the retainer in the second engagement portion. The second washer nozzle is engaged with this portion.

  According to the said structure, a 2nd washer nozzle can be engaged with a retainer using the 2nd engaging part with which a 2nd engaging claw is engaged. Thereby, the space for arranging the second engaging claw and the second washer nozzle can be saved, and the structure of the retainer can be simplified.

  In the vehicle wiper device according to the present disclosure, a pair of protrusions that protrude from the side walls on both sides in the width direction of the retainer at a position on the proximal end side of the retainer with respect to the second engagement portion are provided in the opening portion of the retainer. A third engagement portion is formed, and the cover is formed with a pair of third engagement claws configured to be elastically deformable on the inner side in the width direction of the cover. Engaged with the third engagement portion to limit the movement of the cover toward the windshield glass.

  According to the said structure, the movement of the width direction with respect to the retainer of a cover can be restrict | limited by the 3rd engagement nail | claw. Therefore, the attachment state of the cover can be improved.

FIG. 1 is an exploded perspective view of a retainer cover used in the vehicle wiper device according to the present embodiment as viewed from the lower side of the arm in a state where the retainer cover is removed from the wiper arm. FIG. 2 is a plan view of the vehicle wiper device according to the present embodiment as viewed from above the arm. FIG. 3 is a plan view seen from the outside of the wiping surface of the windshield glass for explaining the rotation of the wiper arm shown in FIG. FIG. 4 is a side view showing the wiper arm shown in FIG. FIG. 5 is a rear view of the wiper arm shown in FIG. 2 as seen from below the arm. 6A is a perspective view showing a state in which the urging mechanism is connected to the head side connecting portion of the arm head shown in FIG. 4, and FIG. 6B is shown in FIG. It is the perspective view seen from the arm front end side which shows a biasing mechanism. FIG. 7A is a side sectional view showing a state of the urging mechanism when the retainer is arranged at the wiping posture position, and FIG. 7B is an attachment when the retainer is arranged at the standing posture position. It is a sectional side view which shows the state of a urging mechanism. FIG. 8 is an enlarged perspective view showing an intermediate portion in the longitudinal direction of the retainer shown in FIG. FIG. 9 is a perspective view showing the vicinity of the proximal end portion of the retainer when the retainer is disposed in the standing posture position. FIG. 10 is a perspective view showing the inside of the retainer cover shown in FIG. 11A is a cross-sectional view (a cross-sectional view taken along the line 11A-11A in FIG. 1) of the third engagement claw of the retainer cover as viewed from the arm tip side, and FIG. 11B is a first view of the retainer cover. It is sectional drawing (11B-11B sectional view taken on the line of FIG. 1) which looked at the engaging claw and the 2nd engaging claw from the width direction one side of the retainer cover.

  Hereinafter, the vehicle wiper device 10 according to the present embodiment will be described with reference to the drawings. As shown in FIGS. 2 and 3, the vehicle wiper device 10 includes a wiper arm 12 that is formed in a substantially long shape, and a substantially long wiper blade 120 that is connected to the tip of the wiper arm 12. It is configured to include. When the wiper arm 12 is rotated, the wiper blade 120 wipes the surface to be wiped S of the windshield glass G (hereinafter referred to as WS glass G) of the vehicle (automobile). Hereinafter, the configuration of the wiper arm 12 of the vehicle wiper device 10 will be mainly described.

(About wiper arm 12)
As shown in FIGS. 4 and 5, the wiper arm 12 is formed in a substantially long shape, and is perpendicular to the surface to be wiped S in the thickness direction of the WS glass G (not shown in FIGS. 4 and 5). In the direction of arrows C and D in FIG. 4). In the following description, one side in the longitudinal direction of the wiper arm 12 (arrow A direction side shown in FIGS. 4 and 5) is referred to as an arm tip side, and the other side in the longitudinal direction of the wiper arm 12 (shown in FIGS. 4 and 5). The arrow B direction side) is referred to as the arm base end side. The side opposite to the WS glass G with respect to the wiper arm 12 (arrow C direction side shown in FIG. 4) is referred to as an arm upper side, and the WS glass G side with respect to the wiper arm 12 (arrow D direction side shown in FIG. 4). ) Is called the arm lower side.

  The wiper arm 12 includes an arm head 14 that forms a proximal end portion of the wiper arm 12 and a retainer 30 that forms a distal end portion of the wiper arm 12. A main nozzle 60 (see FIG. 5) as a “first washer nozzle” is attached to the retainer 30 at a tip portion thereof, and a sub nozzle 70 (as a “second washer nozzle” at its middle portion in the longitudinal direction). (See FIG. 5). That is, the wiper arm 12 is configured as a wiper arm with a nozzle. Further, the wiper arm 12 includes a retainer cover 90 as a “cover” that closes the opening of the retainer 30.

(About the arm head 14)
The arm head 14 is formed in a substantially long shape and is formed in a concave shape opened to the WS glass G side when viewed from the front end side. A fixed portion 16 is formed at the base end portion of the arm head 14, and a distal end portion of a substantially columnar pivot shaft PA (see FIG. 4) is fastened and fixed to the fixed portion 16. The pivot shaft PA is rotatably supported by a pivot holder (not shown) fixed to a vehicle frame or the like, and is connected to a wiper motor (not shown) via a link mechanism or the like. Then, as the pivot shaft PA is reciprocally rotated by the driving force of the wiper motor, the wiper arm 12 is reciprocally rotated between the stop position and the reverse position as shown in FIG. Note that the wiper arm 12 has a direction from the stop position toward the reversal position (arrow a direction in FIG. 3) as one rotation direction, and a direction from the reversal position to the stop position (arrow b direction in FIG. 3) is swiveled. The other direction.

  As shown in FIG. 6A, a head-side connecting portion 18 for connecting a retainer 30 (described later) to the arm head 14 is formed at the distal end portion of the arm head 14. In FIG. 6A, the retainer 30 is not shown for convenience. The head-side connecting portion 18 is provided with a connecting shaft 20 penetrating the arm head 14 in the width direction. In addition, a support shaft 22 that supports a spring guide 54 described later is embedded in the distal end portion of the head side coupling portion 18 at a position on the arm distal end side and the arm upper side with respect to the coupling shaft 20. 22 is arranged parallel to the connecting shaft 20 with the width direction of the arm head 14 as the axial direction. Further, a slit 18A penetrating in the vertical direction of the arm is formed at the front end portion of the head side connecting portion 18 at the center in the width direction, and the slit 18A is opened to the front end side of the arm head 14. And it arrange | positions in the state in which the longitudinal direction intermediate part of the support shaft 22 was exposed in the slit 18A, and the spring guide 54 is rotatably supported in this slit 18A. The arm head 14 is provided with a head cover 24 (see FIG. 5) that closes the opening of the arm head 14.

(Retainer 30)
As shown in FIGS. 1, 4, and 5, the retainer 30 is formed in a substantially long shape and has a substantially U-shaped cross section opened to the arm lower side (WS glass G side) when viewed from the longitudinal direction. It is formed in a letter shape (concave shape). Specifically, the retainer 30 includes a top wall 30A and a pair of side walls 30B and 30C that extend from both ends in the width direction of the top wall 30A to the lower side of the arm. Further, the width dimension of the retainer 30 (in other words, the distance between the pair of side walls 30B and 30C, which corresponds to the width dimension of the wiper arm 12) is set so as to decrease toward the distal end side of the retainer 30. . That is, the retainer 30 is configured to become thinner as it goes toward the distal end side (see FIGS. 1 and 5).

  As shown in FIGS. 1 and 9, the head side connecting portion 18 of the arm head 14 is accommodated inside the base end portion of the retainer 30, and the base end portion of the retainer 30 is connected to the arm head 14. Yes. Specifically, the longitudinal ends of the connecting shaft 20 are fixed to the proximal ends of the pair of side walls 30B and 30C in the retainer 30 by caulking or the like. As a result, the retainer 30 is connected to the arm head 14 and is configured to be rotatable about the axis of the connecting shaft 20 (in the directions of arrows c and d in FIG. 9). Specifically, the retainer 30 is rotated in a direction to be away from the WS glass G from the wiping posture position (position shown in FIG. 7A) arranged to face the WS glass G and the wiping posture position. It is configured to rotate between a standing posture position (position shown in FIG. 7B) standing up with respect to the WS glass G. When the retainer 30 is rotated to the standing posture position, the base end of the top wall 30A of the retainer 30 is brought into contact with the distal end portion of the arm head 14, and the retainer 30 is rotated to the side opposite to the WS glass G. The movement is restricted.

  Further, as shown in FIGS. 6A and 6B, an urging mechanism 50 is provided between the retainer 30 and the arm head 14, and the retainer 30 is in the wiping posture position when the retainer 30 is in the wiping posture position. 30 is urged toward the WS glass G side by the urging mechanism 50. Hereinafter, the urging mechanism 50 will be described.

  The biasing mechanism 50 includes a compression spring 52 for applying a biasing force to the retainer 30, a spring guide 54 for maintaining the posture of the compression spring 52, and a pin 56 for locking the distal end side of the spring guide 54. And the stopper 58.

  The spring guide 54 is made of a steel plate or the like, and is formed in a substantially long shape along the longitudinal direction of the retainer 30. The spring guide 54 is connected to the head side connecting portion 18 of the arm head 14 and is disposed inside the base end portion of the retainer 30 with the width direction of the retainer 30 as the plate thickness direction. Specifically, a substantially trapezoidal plate-like pedestal portion 54A is formed at the base end portion of the spring guide 54, and the base end side portion of the pedestal portion 54A is the head side connecting portion 18 of the arm head 14. It is inserted into the slit 18A. Further, a connecting hole 54A1 (see FIG. 6B) is formed through the pedestal portion 54A, and the support shaft 22 is inserted into the connecting hole 54A1 so that the spring guide 54 is rotatably supported by the support shaft 22. Has been.

  The spring guide 54 includes a substantially rectangular bar-shaped guide portion 54B, and the guide portion 54B extends from a substantially intermediate portion in the vertical direction of the pedestal portion 54A to the distal end side of the retainer 30. And in the wiping attitude | position position of the retainer 30, the guide part 54B is arrange | positioned in the arm lower side (WS glass G side) with respect to connection hole 54A1 (support shaft 22). In other words, the connecting hole 54A1 (support shaft 22) is disposed offset to the arm upper side (the side opposite to the WS glass G) with respect to the guide portion 54B.

  As shown in FIGS. 7A and 7B, the pin 56 is disposed with the axial direction set to the width direction of the retainer 30, and is spanned between the pair of side walls 30B and 30C of the retainer 30. Is fixed. The pin 56 is disposed on the arm lower side (WS glass G side) with respect to the tip of the spring guide 54 (guide portion 54B), and is locked in contact with the tip of the guide portion 54B. Yes.

  The stopper 58 is disposed inside the retainer 30 and is formed in a substantially inverted L-shaped plate shape in a side view. Specifically, the stopper 58 includes a fixed wall 58A disposed in parallel with the top wall 30A of the retainer 30, and a stopper wall 58B extending from the end of the fixed wall 58A on the arm base end side to the arm lower side. And. The fixing wall 58A is caulked and fixed to the top wall 30A of the retainer 30 by the fixing pin P at a position above the arm of the pin 56. In this state, the stopper wall 58 </ b> B is disposed on the proximal end side of the retainer 30 with respect to the pin 56.

  Further, the stopper wall 58B is formed with a guide slit 58B1 opened to the lower side of the arm at the center in the width direction, and the tip of the spring guide 54 (guide portion 54B) is located in the guide slit 58B1. It is inserted. That is, the tip of the spring guide 54 (guide portion 54B) is sandwiched between the stopper 58 (the guide slit 58B1) and the pin 56 in the vertical direction of the arm. Thereby, even if the retainer 30 rotates about the axis of the connecting shaft 20 with respect to the arm head 14, the spring guide 54 can be rotated about the axis of the support shaft 22.

  The compression spring 52 is attached to the spring guide 54 and is disposed between the stopper 58 and the base portion 54 </ b> A of the spring guide 54. Specifically, the guide portion 54B of the spring guide 54 is inserted into the compression spring 52, and the compression spring 52 is attached to the spring guide 54 in a state of being compressed and deformed. In this state, the tip of the compression spring 52 urges the stopper wall 58 </ b> B of the stopper 58 toward the tip of the retainer 30. A washer 59 (see FIG. 6B) is interposed between the base end portion of the compression spring 52 and the pedestal portion 54A of the spring guide 54, and the base end portion of the compression spring 52 is supported by the washer 59. It comes to support.

  Here, as shown in FIG. 7A, in the wiping posture position of the retainer 30, the stopper wall portion with respect to the overhead line L connecting the axis of the connecting shaft 20 and the axis of the support shaft 22 in a side view. 58B is located on the WS glass G side. For this reason, in the wiping posture position of the retainer 30, a biasing force toward the WS glass G is applied to the retainer 30 by the compression spring 52, and the wiper blade 120 presses the WS glass G.

  On the other hand, as shown in FIG. 7B, the stopper wall 58 </ b> B is located on the opposite side of the WS glass G with respect to the overhead wire L in the standing posture position of the retainer 30. For this reason, in the standing posture position of the retainer 30, the urging | biasing force to the opposite side to WS glass G acts on the retainer 30 with the compression spring 52. As shown in FIG. Thereby, the urging | biasing force to the opposite side to WS glass G acts on the retainer 30, and the retainer 30 is hold | maintained in a standing posture position.

  Further, when the retainer 30 is disposed in the standing posture position, the support shaft 22 is positioned at the distal end side of the side walls 30B and 30C of the retainer 30 (opening side of the retainer 30), compared to when the retainer 30 is disposed in the wiping posture position. Placed in. At this time, a part of the proximal end side portion of the compression spring 52 protrudes (protrudes) from the opening of the retainer 30.

  Returning to the description of the configuration of the retainer 30, as shown in FIG. 1, a lateral bending portion 32 bent in a crank shape is formed on the distal end side of the retainer 30, and the distal end portion of the retainer 30 is the base end thereof. It is offset to one side in the rotational direction with respect to the part. A longitudinal intermediate portion of the wiper blade 120 is connected to the tip of the retainer 30. As a result, the wiper blade 120 is disposed on one side in the rotational direction with respect to the retainer 30 (a portion excluding the tip thereof) when viewed from the vertical direction of the arm (see FIGS. 2 and 3).

  A first engagement of a retainer cover 90, which will be described later, is provided on a side wall 30B on one side in the width direction of the retainer 30 in a portion on the distal end side of the retainer 30 (specifically, a portion on the arm base end side with respect to the lateral bending portion 32). A first engagement piece 34 is integrally formed as a “first engagement portion” with which the claw 94 is engaged. The first engagement piece 34 is bent inward in the width direction of the retainer 30 at the lower end of the side wall 30B. That is, the width direction of the first engagement piece 34 coincides with the longitudinal direction of the retainer 30 (wiper arm 12). In the following description of the first engagement piece 34, the arm distal end side (arrow A direction side in FIG. 1) is one side in the width direction of the first engagement piece 34, and the arm proximal end side (arrow B in FIG. 1). Direction side) is the other side in the width direction of the first engagement piece 34.

  Further, as shown in FIG. 8, a second engagement claw 98 of a retainer cover 90 described later is engaged with the side wall 30 </ b> B of the retainer 30 at a position on the arm proximal end side with respect to the first engagement piece 34. A second engagement piece 36 as a “second engagement portion” is integrally formed. The second engagement piece 36 is configured in the same manner as the first engagement piece 34. That is, the second engagement piece 36 is bent inward in the width direction of the retainer 30 at the lower end of the side wall 30B. Thereby, also in the 2nd engagement piece 36, the width direction of the 2nd engagement piece 36 corresponds with the longitudinal direction of the retainer 30 (wiper arm 12). In the following description of the second engagement piece 36, the arm distal end side (arrow A direction side in FIG. 8) is defined as one width direction side of the second engagement piece 36, and the arm base end side (arrow B in FIG. 8). (Direction side) is the other side in the width direction of the second engagement piece 36.

  As described above, in the retainer 30, the first engagement piece 34 and the second engagement piece 36 are protruded inward in the width direction of the retainer 30 with respect to the side wall 30 </ b> B, and the retainer is disposed on one side in the width direction of the opening of the retainer 30. 30 are arranged side by side in the longitudinal direction. Further, the first engagement piece 34 and the second engagement piece 34 are arranged such that the front end of the first engagement piece 34 and the front end of the second engagement piece 36 are arranged on one side in the width direction from the center in the width direction of the retainer 30. The protrusion amount of the piece 36 is set.

  Further, at the lower end edge of the side wall 30B of the retainer 30, at a position on the arm base end side with respect to the second engagement piece 36, an emboss 38 for attaching a sub nozzle 70 to be described later (in a broad sense, "projection part") Which are grasped elements) are integrally formed (see FIG. 8). The emboss 38 forms a substantially rectangular block shape along the longitudinal direction of the retainer 30, and is pushed out (projected) inward in the width direction of the retainer 30 with respect to the side wall 30B. Further, the emboss 38 is punched inward in the width direction of the retainer 30 with a dimension smaller than the plate thickness dimension of the side wall 30B by half punching or the like.

  Further, a pair of engagement holes 40 for attaching a sub nozzle 70 described later are formed through the side wall 30C on the other side in the width direction of the retainer 30. The pair of engagement holes 40 form a long hole shape along the longitudinal direction of the retainer 30 and are respectively disposed at the lower end portion of the side wall 30 </ b> C and are disposed at a predetermined interval in the longitudinal direction of the retainer 30. .

  As shown in FIG. 1, a pair of “third engagement portions” that are engaged with third engagement claws 102 of a retainer cover 90 to be described later are disposed in the longitudinal direction intermediate portions of the side walls 30 </ b> B and 30 </ b> C of the retainer 30. The third engagement piece 42 is integrally formed. The third engagement pieces 42 are bent inward in the width direction of the retainer 30 at the lower ends of the side walls 30 </ b> B and 30 </ b> C, and are arranged side by side in the width direction of the retainer 30.

  Further, the side walls 30B and 30C of the retainer 30 are paired with a fourth engagement piece 44 (in a broad sense, "fourth" in a base end portion of the retainer 30 to be engaged with a base end portion of a retainer cover 90 described later. Is an element that is grasped as an “engagement portion”. The fourth engagement piece 44 is configured in the same manner as the third engagement piece 42. That is, the fourth engagement pieces 44 are bent inward in the width direction of the retainer 30 at the lower ends of the side walls 30 </ b> B and 30 </ b> C and arranged side by side in the width direction of the retainer 30.

  As described above, in the retainer 30, the third engagement piece 42 and the fourth engagement piece 44 protrude from the side walls 30 </ b> B and 30 </ b> C inward in the width direction of the retainer 30 and are disposed at the opening of the retainer 30. The third engagement pieces 42 and the pair of fourth engagement pieces 42 and the pair of fourth engagement pieces 44 are arranged so that the tips of the pair of fourth engagement pieces 42 are spaced apart from each other in the width direction of the retainer 30. The protrusion amount of the fourth engagement piece 44 is set. In the retainer 30, the width dimension on the distal end side is narrow, but the proximal end side is wide. Therefore, the third engagement piece 42 and the fourth engagement piece 44 are opposed to each other in the width direction of the retainer 30. Even if it is formed, a sufficient amount of protrusion can be set.

(About the main nozzle 60)
As shown in FIG. 1, the main nozzle 60 is provided at the tip of the retainer 30. The main nozzle 60 is formed in a substantially rectangular block shape, and is attached to the retainer 30 in a state of being in contact with the outer surface of the side wall 30B on one side in the width direction of the retainer 30. Specifically, the main nozzle 60 has a nozzle mounting portion 62, and the nozzle mounting portion 62 passes through a first hole (not shown) formed in the side wall 30 </ b> B of the retainer 30, and the retainer 30. Is placed inside. The nozzle attachment portion 62 is formed with a pair of claw portions, and the claw portions are engaged with the edge portion of the first hole portion, so that the main nozzle 60 is attached to the retainer 30.

  The main nozzle 60 has a main nozzle connection portion 64. The main nozzle connecting portion 64 passes through a second hole (not shown) formed in the side wall 30 </ b> B of the retainer 30 and is disposed inside the retainer 30. A plurality of (two in this embodiment) main nozzle injection holes 66A and 66B are recessed in the lower surface of the main nozzle 60, and the main nozzle injection holes 66A and 66B are arranged in the longitudinal direction of the wiper arm 12. They are arranged side by side and communicated with the main nozzle connection portion 64.

  Furthermore, one end of a main nozzle hose 68 arranged inside the arm head 14 and the retainer 30 is connected to the main nozzle connection portion 64, and the main nozzle connection portion 64 is connected via the main nozzle hose 68. And a first washer pump (not shown) of the vehicle. As a result, the cleaning liquid pumped from the vehicle washer tank (not shown) by the first washer pump is supplied to the main nozzle 60 via the main nozzle hose 68. The cleaning liquid supplied to the main nozzle 60 is jetted onto the WS glass G through the main nozzle jet holes 66A and 66B. Specifically, when the wiper blade 120 rotates in the reciprocating rotation of the wiper blade 120 in the forward movement direction (in the direction of arrow a in FIG. 3), the cleaning liquid advances from the main nozzle injection holes 66A and 66B. It is jetted in the direction side.

(About the sub nozzle 70)
As shown in FIG. 8, the sub-nozzle 70 is disposed inside the retainer 30 so as to be adjacent to the second engagement piece 36 on the arm proximal end side. Specifically, as shown in FIG. 3, the sub nozzle 70 is disposed on the other side in the rotational direction with respect to the base end side portion of the wiper arm 12 with respect to the longitudinal direction intermediate portion of the wiper blade 120. Is attached to the retainer 30. As shown in FIG. 8, the sub-nozzle 70 includes a nozzle body 72 and a pair of nozzle engaging pieces 80.

  The nozzle body 72 is formed in a substantially rectangular parallelepiped shape and extends in the longitudinal direction of the retainer 30. The nozzle body 72 is disposed adjacent to the side wall 30 </ b> B on one side in the width direction of the retainer 30. Specifically, the nozzle body 72 is arranged on one side in the width direction with respect to the width direction center of the retainer 30. A pair of ribs 72 </ b> A are integrally provided on the upper surface of the nozzle body 72 (the surface facing the top wall 30 </ b> A of the wiper arm 12 in the vertical direction of the arm). The rib 72 </ b> A protrudes from the nozzle body 72 to the upper side of the arm and extends in the longitudinal direction of the nozzle body 72. The leading end surface of the rib 72A is in contact with the top wall 30A of the retainer 30. On the other hand, the lower surface (the surface on the WS glass G side) of the nozzle body 72 is disposed flush with the end surface of the side wall 30B of the retainer 30.

  The end of the nozzle body 72 on one side in the longitudinal direction (arm tip side) is a first engaged portion 72B, and the first engaged portion 72B is the second engaging piece 36 of the retainer 30. Is disposed adjacent to the upper side of the arm with respect to the other end in the width direction. In other words, the first engaged portion 72B is inserted between the top wall 30A of the retainer 30 and the second engagement piece 36 from the arm proximal end side. Accordingly, the first engaged portion 72B is engaged with the second engagement piece 36 in the vertical direction of the arm, and relative to the retainer 30 of the nozzle body 72 (sub-nozzle 70) on the arm lower side (WS glass G side). Movement is restricted.

  A groove portion 72 </ b> C is formed on the side surface of the nozzle body 72 on one side in the width direction. The groove 72C is formed in a concave shape opened to one side in the width direction of the nozzle main body 72 when viewed from the vertical direction of the arm and penetrates in the vertical direction of the arm. The width dimension of the groove 72C (the dimension in the direction along the longitudinal direction of the nozzle body 72) is set to be larger than the width dimension of the emboss 38 of the retainer 30 (the dimension in the direction along the longitudinal direction of the wiper arm 12). Yes.

  Furthermore, an accommodation recess 72D is formed on the lower surface of the nozzle body 72 at a position on the other side in the longitudinal direction of the nozzle body 72 with respect to the groove 72C. The housing recess 72D is open to one side in the width direction of the nozzle body 72 and one side in the longitudinal direction of the nozzle body 72, and communicates with the groove 72C. Then, the emboss 38 of the retainer 30 is arranged in the housing recess 72D, and the movement of the nozzle body 72 (sub nozzle 70) to the arm lower side (WS glass G side) with respect to the retainer 30 is also restricted by the emboss 38. It has become.

  In addition, a stopper portion 72E is integrally formed on the lower surface of the nozzle main body 72 at a tip portion on one side in the longitudinal direction. The stopper portion 72E is formed in a substantially rectangular block shape and protrudes from the nozzle body 72 to the arm lower side. The stopper portion 72E is disposed adjacent to the arm proximal end side with respect to the second engagement piece 36 of the retainer 30, and comes into contact with the end surface in the width direction of the second engagement piece 36. ing.

  Further, the nozzle main body 72 has a nozzle portion 74 that injects the cleaning liquid onto the WS glass G. The nozzle portion 74 is disposed on the other side in the longitudinal direction of the nozzle main body 72 with respect to the first engaged portion 72B and the stopper portion 72E described above, as viewed from the lower side of the arm, and with respect to the groove portion 72C described above. The nozzle body 72 is disposed on the inner side in the width direction. The nozzle portion 74 includes a plurality (three in the present embodiment) of sub nozzle injection holes 74A, 74B, and 74C, and an surrounding wall 74D that surrounds the sub nozzle injection holes 74A to 74C.

  The plurality of sub-nozzle injection holes 74 </ b> A to 74 </ b> C are recessed in the lower surface of the nozzle body 72 and are arranged side by side in the longitudinal direction of the nozzle body 72. The surrounding wall 74D is formed in a substantially rectangular frame shape, and protrudes from the lower surface of the nozzle body 72 to the lower side of the arm so as to surround the sub nozzle injection holes 74A to 74C.

  Further, a sub-nozzle connection portion 76 is integrally formed at the end of the nozzle body 72 on the other side in the longitudinal direction. The sub-nozzle connection portion 76 is formed in a substantially cylindrical shape with the longitudinal direction of the nozzle body 72 as an axial direction, and protrudes from the nozzle body 72 toward the arm base end side. Further, the inside of the sub nozzle 70 is communicated with the inside of the sub nozzle injection holes 74 </ b> A to 74 </ b> C in the nozzle body 72.

  One end of a sub-nozzle hose 78 routed inside the arm head 14 and the retainer 30 is connected to the sub-nozzle connection portion 76, and the sub-nozzle connection portion 76 is connected to the vehicle through the sub-nozzle hose 78. It is connected to a 2 washer pump (not shown). Thereby, the cleaning liquid pumped by the second washer pump is supplied to the sub nozzle 70 from a washer tank (not shown) of the vehicle.

  Then, the cleaning liquid supplied to the sub nozzle 70 is jetted onto the WS glass G through the sub nozzle jet holes 74A to 74C. Specifically, when the wiper blade 120 rotates back and forth in the reciprocating rotation of the wiper blade 120 (in the direction of arrow b in FIG. 3), the cleaning liquid travels from the sub-nozzle injection holes 74A to 74C. It is jetted to the side.

  Here, when attaching the sub nozzle 70 to the retainer 30, the sub nozzle 70 is first attached to the inside of the retainer 30 from the lower side of the arm so that the emboss 38 of the retainer 30 is inserted into the groove 72C of the sub nozzle 70. At this time, the first engaged portion 72B of the sub-nozzle 70 is set to be located on the proximal side with respect to the second engagement piece 36 so as not to interfere with the second engagement piece 36 of the retainer 30. . Then, the emboss 38 is accommodated in the accommodating recess 72D by sliding the sub nozzle 70 toward the distal end side of the retainer 30 in a state where the emboss 38 is inserted into the groove 72C of the sub nozzle 70, and the first engaged portion 72B is inserted above the arm of the second engagement piece 36 so that the sub nozzle 70 is attached to the retainer 30.

  The pair of nozzle engaging pieces 80 extends from the lower end of the nozzle body 72 to the other side in the width direction of the retainer 30 and is bent into a substantially L shape when viewed from the longitudinal direction of the nozzle body 72. Specifically, the nozzle engagement piece 80 includes a first arm 80A that extends from the lower end of the nozzle body 72 to the other side in the width direction of the retainer 30, and a lower arm (retainer 30) from the tip of the first arm 80A. And the second arm 80 </ b> B extending to the opening side).

  The pair of nozzle engaging pieces 80 are arranged side by side in the longitudinal direction of the nozzle main body 72 and are arranged at positions corresponding to the engaging holes 40 of the retainer 30 described above. Further, the boundary portion (bent portion) between the first arm 80A and the second arm 80B is formed in a substantially arc shape when viewed from the longitudinal direction of the nozzle body 72, so that the first arm 80A and the second arm 80B are smooth. Connected to. Further, the nozzle engaging piece 80 (mainly the second arm 80B) is configured to be elastically deformable in the width direction of the wiper arm 12 (can be elastically pressed to the other side in the width direction of the retainer 30).

  Further, a claw portion 82 that protrudes to the other side in the width direction of the wiper arm 12 is integrally formed at the tip end portion (second arm 80B) of the nozzle engagement piece 80. The claw portion 82 is formed in a substantially rectangular block shape along the longitudinal direction of the wiper arm 12, and the claw portion 82 is fitted (engaged) in the engagement hole 40 at the main assembly position. Thereby, the relative movement of the nozzle engaging piece 80 (sub nozzle 70) with respect to the retainer 30 in the vertical direction of the arm and the longitudinal direction of the wiper arm 12 is limited.

(Retainer cover 90)
As shown in FIGS. 1 and 10, the retainer cover 90 is made of a resin material. The retainer cover 90 is formed in a substantially long plate shape along the longitudinal direction of the retainer 30, and is arranged with the vertical direction of the arm as the plate thickness direction so as to close the opening of the retainer 30 from the lower side of the arm. Installed on. Further, the width dimension of the retainer cover 90 is set so as to become smaller toward the front end side corresponding to the width dimension of the retainer 30, and when the retainer cover 90 is attached, the retainer cover 90 is set with respect to the retainer 30. Thus, it is configured not to protrude outward in the width direction (see FIG. 5).

  A first notch 92 is formed at the front end of the retainer cover 90 at a position corresponding to the first engaging piece 34 of the retainer 30 described above. The first notch 92 is formed in the width direction of the retainer cover 90. It is formed in a substantially concave shape opened to one side. In other words, the width direction of the first cutout portion 92 coincides with the longitudinal direction of the retainer cover 90 (wiper arm 12). In the following description of the first notch 92, the arm distal end side is defined as one side in the width direction of the first notch 92, and the arm proximal end is defined as the other side in the width direction of the first notch 92. Further, the width dimension of the first notch 92 is set to be larger than the width dimension of the first engagement piece 34 of the retainer 30, and the first engagement piece 34 is in the first notch in the attached state of the retainer cover 90. It is arranged in the portion 92 (see FIGS. 5 and 11B).

  Further, a first engaging claw 94 protruding upward from the arm is formed integrally with an edge of the first notch 92 on the other side in the width direction. The first engaging claw 94 is formed in a plate shape having a substantially longitudinal direction of the retainer cover 90 as a plate thickness direction, and is bent in a substantially V shape that is open to the arm lower side in a side view. Specifically, as shown in FIG. 11B, the first engagement piece 34 is a first main body portion that extends upward from the edge portion on the other side in the width direction of the first cutout portion 92. 94A, and a first arm portion 94B extending from the tip (upper end) of the first main body portion 94A to the arm tip side and the arm lower side. For this reason, the first arm portion 94 </ b> B is disposed inside the first cutout portion 92 when viewed from the vertical direction of the arm. Further, the plate thickness of the first arm portion 94B is set to be thinner than the plate thickness of the first main body portion 94A, and the first arm portion 94B moves to the arm base end side (direction approaching the first main body portion 94A). It is configured to be elastically deformable. In the attached state of the retainer cover 90, the first main body portion 94 </ b> A is located on the arm base end side with respect to the first engagement piece 34 of the retainer 30.

  Furthermore, an engagement recess 94C is formed at the distal end portion of the first arm portion 94B in the first engagement piece 34, and the engagement recess 94C is opened to the arm distal end side and the arm upper side in a side view. It is formed in a substantially inverted L shape. In the attached state of the retainer cover 90, the first arm portion 94B is elastically deformed toward the arm proximal end side, and the end on the other side in the width direction of the first engagement piece 34 of the retainer 30 becomes the engagement recess 94C. Is engaged. Thereby, the movement to the arm lower side (WS glass G side) at the front end portion of the retainer cover 90 is restricted by the first engagement claw 94.

  As shown in FIGS. 1 and 10, a second notch 96 is formed at the distal end of the retainer cover 90 at a position on the arm base end side with respect to the first notch 92. The two notches 96 are formed in a substantially concave shape opened to one side in the width direction of the retainer cover 90. That is, also in the second notch 96, the width direction of the second notch 96 coincides with the longitudinal direction of the retainer cover 90 (wiper arm 12). In the following description of the second notch 96, the arm distal end side is defined as one side in the width direction of the second notch 96, and the arm proximal end is defined as the other side in the width direction of the second notch 96. The width dimension of the second notch 96 is set to be larger than the sum of the width dimension of the second engagement piece 36 of the retainer 30 and the width dimension of the stopper portion 72E of the sub nozzle 70. And in the attachment state of the retainer cover 90, the 2nd engagement piece 36 and the stopper part 72E are arrange | positioned in the 2nd notch part 96 (refer FIG.5 and FIG.11 (B)).

  Further, a second engaging claw 98 protruding upward from the arm is formed integrally with an edge portion on one side in the width direction of the second notch 96. The second engagement claw 98 is configured to form a pair with the first engagement claw 94 and is formed in a substantially symmetrical shape with the first engagement claw 94 in the longitudinal direction of the retainer 30. That is, the second engagement claw 98 is formed in a plate shape having the substantially longitudinal direction of the retainer cover 90 as the plate thickness direction, and is bent in a substantially V shape opened to the lower side of the arm in a side view. . Then, as shown in FIG. 11B, the second engagement piece 36 includes a second main body 98A extending from the edge on one side in the width direction of the second notch 96 to the upper side of the arm, A second arm portion 98B extending from the distal end (upper end) of the second main body portion 98A to the arm lower side and the arm proximal end side. For this reason, the second arm portion 98 </ b> B is disposed inside the second cutout portion 96 when viewed from the vertical direction of the arm. Further, the plate thickness of the second arm portion 98B is set to be thinner than the plate thickness of the second main body portion 98A, and the second arm portion 98B is elastic to the arm tip side (direction approaching the second main body portion 98A). It is configured to be deformable. Further, the extension length of the second main body portion 98A is set slightly longer than the extension length of the first main body portion 94A of the first engagement claw 94, and the extension length of the second arm portion 98B is set. The extension length of the first arm portion 94B of the first engagement claw 94 is set slightly longer. In the attached state of the retainer cover 90, the second main body portion 98 </ b> A is positioned on the arm tip side with respect to the second engagement piece 36 of the retainer 30.

  Furthermore, an engagement recess 98C is formed at the distal end portion of the second arm portion 98B of the second engagement claw 98, and the engagement recess 98C opens to the arm proximal end side and the arm upper side in a side view. It is formed in a substantially L-shape. In the attached state of the retainer cover 90, the second arm portion 98B is elastically deformed toward the distal end of the arm, and the end portion on one side in the width direction of the second engagement piece 36 of the retainer 30 is engaged with the engagement recess 98C. Are combined. Accordingly, the movement of the distal end portion of the retainer cover 90 toward the arm lower side (WS glass G side) is also restricted by the second engagement claw 98.

  In the attached state of the retainer cover 90, the first engagement claw 94, the second engagement claw 98, and the sub nozzle 70 (nozzle body 72) are disposed adjacent to the side wall 30 </ b> B of the retainer 30 and the retainer 30. Are arranged side by side in the longitudinal direction. That is, the first engagement claw 94, the second engagement claw 98, and the sub nozzle 70 (nozzle body 72) are arranged together on one side in the width direction of the retainer 30 inside the retainer 30. In the retainer 30, the area on the other side in the width direction of the retainer 30 with respect to the first engagement claw 94, the second engagement claw 98, and the sub nozzle 70 is a hose arrangement area HA (FIGS. 1 and 8). The main nozzle hose 68 is routed in the hose routing area HA.

  Further, as shown in FIGS. 1 and 10, a pair of third notches 100 are formed in the middle portion of the retainer cover 90 in the longitudinal direction at positions corresponding to the pair of third engagement pieces 42 in the retainer 30. The pair of third cutouts 100 are formed in a substantially concave shape that is open to the outside in the width direction of the retainer cover 90. That is, also in the third cutout portion 100, the width direction of the third cutout portion 100 coincides with the longitudinal direction of the retainer cover 90 (wiper arm 12). The width dimension of the third cutout portion 100 is set to be larger than the width dimension of the third engagement piece 42 of the retainer 30, and the third engagement piece 42 is in the third cutout portion in the attached state of the retainer cover 90. 100.

  Further, a third engaging claw 102 protruding upward from the arm is integrally formed at the edge of the bottom of each third notch 100. The third engagement claws 102 are formed symmetrically in the width direction of the retainer 30. Specifically, the third engaging claw 102 is formed in a plate shape in which the substantially width direction of the retainer cover 90 is a plate thickness direction, and is opened to the lower side of the arm when viewed from the longitudinal direction of the retainer cover 90. It is bent into a substantially V shape. As shown in FIG. 11A, the third engagement piece 42 includes a third main body 102A extending from the edge of the bottom of the third notch 100 to the upper side of the arm, and a third main body 102A. A third arm portion 102B extending from the tip (upper end) of the portion 102A to the arm lower side and the width direction outer side of the retainer cover 90. Accordingly, the third arm portion 102B is disposed in the third cutout portion 100 when viewed from the vertical direction of the arm. Further, the plate thickness of the third arm portion 102B is set to be thinner than the plate thickness of the third main body portion 102A, and the third arm portion 102B is inward in the width direction of the retainer cover 90 (approaching the third main body portion 102A). Direction). In the attached state of the retainer cover 90, the pair of third main body portions 102 </ b> A is disposed on the inner side in the width direction of the retainer 30 with respect to the third engagement piece 42 of the retainer 30.

  In addition, an engagement recess 102C is formed at the tip of the third arm portion 102B of the third engagement claw 102, and the engagement recess 102C is viewed from the longitudinal direction of the retainer cover 90. It is formed in a substantially L shape that is open to the outside in the width direction and above the arm. When the retainer cover 90 is attached, the tip of the third engagement piece 42 of the retainer 30 is engaged with the engagement recess 102C while the third arm portion 102B is elastically deformed inward in the width direction of the retainer cover 90. Has been. As a result, the movement of the retainer cover 90 toward the lower side of the arm at the intermediate portion in the longitudinal direction is restricted by the third engaging claw 102.

  Further, as shown in FIG. 1 and FIG. 10, a spring notch 104 is formed at the base end of the retainer cover 90 at the center in the width direction. The spring notch 104 is formed in a substantially U shape that is open to the proximal end side of the retainer cover 90 when viewed from the arm vertical direction. The spring notch 104 prevents a part of the compression spring 52 protruding from the opening of the retainer 30 from interfering with the retainer cover 90 in the standing posture position of the retainer 30 (see FIG. 9). That is, the width dimension of the spring notch 104 is set to be slightly larger than the outer diameter of the compression spring 52, and the notch depth of the spring notch 104 is set so that the compression spring 52 is retained by the retainer cover 90 in the standing position. It is set to a depth that does not interfere with.

  Furthermore, a proximal end side engaging portion 106 is formed on the proximal end portion of the retainer cover 90 at a position on the outer side in the width direction with respect to the spring cutout portion 104. The proximal end side engaging portion 106 is connected to the retainer cover 90 via a stepped portion, and is disposed at a position lowering the retainer cover 90 by one step above the arm. In the attached state of the retainer cover 90, the proximal end side engaging portion 106 is inserted above the arm of the fourth engaging piece 44 of the retainer 30. Thereby, the movement to the arm lower side (WS glass G side) in the base end part of the retainer cover 90 is restricted.

  A pair of partition walls 108 are integrally formed at the proximal end portion of the retainer cover 90. The partition wall 108 is arranged with the plate thickness direction as the width direction of the retainer cover 90, and extends upward from the opening edge of the spring cutout 104. Further, the partition wall 108 is disposed adjacent to the compression spring 52 on the outer side in the width direction of the retainer 30. Accordingly, the interior of the retainer 30 is partitioned by the partition wall 108 into a space in which the compression spring 52 is disposed and a space on the outer side in the width direction of the retainer 30 with respect to the compression spring 52. Each of the main nozzle hose 68 and the sub nozzle hose 78 is arranged in the space outside the retainer 30 in the width direction with respect to the compression spring 52, which is partitioned by the partition wall 108.

  Further, an exposure hole 110 for exposing the nozzle portion 74 of the sub nozzle 70 described above is formed through the portion of the retainer cover 90 on one side in the width direction between the second notch portion 96 and the third notch portion 100. Has been. The exposure hole 110 is formed in a substantially rectangular shape along the longitudinal direction of the retainer cover 90 corresponding to the surrounding wall 74 </ b> D of the sub nozzle 70. The size of the exposure hole 110 is set slightly larger than the outer shape of the surrounding wall 74D of the sub nozzle 70. And the surrounding wall 74D is arrange | positioned inside the exposure hole 110 (it fits), and the nozzle part 74 is exposed to the arm lower side from the retainer cover 90 (refer FIG. 5).

  Also, as shown in FIG. 10, a plurality of ribs 112 are formed on the upper surface (the surface opposite to the WS glass G) of the retainer cover 90 at the width direction outer side portion, and the ribs 112 are formed in the retainer cover. It protrudes from 90 to the arm upper side. In the attached state of the retainer cover 90, the outer peripheral edge portion of the upper surface of the retainer cover 90 is brought into contact with the front end surfaces of the side walls 30B and 30C of the retainer 30, and the rib 112 is adjacent to the inner side surfaces of the side walls 30B and 30C. Are arranged.

  Next, the operation and effect of the present embodiment will be described while explaining the procedure for attaching the retainer cover 90 to the retainer 30.

  When the retainer cover 90 is attached to the retainer 30, the proximal end side engaging portion 106 of the retainer cover 90 is inserted obliquely from the distal end side of the arm to the upper side of the fourth engagement piece 44 of the retainer 30, thereby engaging the proximal end side engagement. The portion 106 and the fourth engagement piece 44 are engaged in the arm vertical direction. Then, from this state, the longitudinal intermediate portion and the distal end portion of the retainer cover 90 are pushed toward the arm upper side (the retainer 30 side), and the retainer cover 90 is attached to the retainer 30.

  Specifically, the third engagement piece 42 of the retainer 30 is disposed inside the pair of third cutout portions 100 in the retainer cover 90, and the second engagement piece 36 of the retainer 30 is placed inside the second cutout portion 96. The retainer cover 90 is disposed at the opening of the retainer 30 so that the first engaging piece 34 of the retainer 30 is disposed inside the first notch 92.

  When the longitudinal intermediate portion of the retainer cover 90 is pushed upward, the tip of the third engagement piece 42 comes into contact with the third arm portion 102B of the third engagement claw 102 of the retainer cover 90, so that the third The arm portion 102B is elastically deformed inward in the width direction of the retainer cover 90. When the intermediate portion in the longitudinal direction of the retainer cover 90 is further pushed upward, the third arm portion 102B is elastically deformed inward in the width direction of the retainer cover 90, and the distal end portion of the third engagement piece 42 is The third engaging piece 42 and the third engaging claw 102 are engaged with each other by fitting into the engaging recess 102 </ b> C of the three engaging claw 102. Thereby, the longitudinal direction intermediate part of the retainer cover 90 is attached to the retainer 30.

  On the other hand, when the distal end portion of the retainer cover 90 is pushed upward, the end portion on the one side in the width direction of the second engagement piece 36 comes into contact with the second arm portion 98B of the second engagement claw 98 in the retainer cover 90. Thus, the second arm portion 98B is elastically deformed toward the distal end side of the retainer cover 90. Further, the end portion on the other side in the width direction of the first engagement piece 34 abuts on the first arm portion 94B of the first engagement claw 94 of the retainer cover 90, and the first arm portion 94B is the base end of the retainer cover 90. Elastically deforms to the side. That is, the displacement directions of the first arm portion 94B of the first engagement claw 94 and the second arm portion 98B of the second engagement claw 98 are elastically displaced in a direction along the longitudinal direction of the retainer 30 (retainer cover 90). .

  When the distal end portion of the retainer cover 90 is further pushed upward, the second arm portion 98B is elastically deformed toward the distal end side of the retainer cover 90, and the end portion on the one side in the width direction of the second engagement piece 36. Is fitted into the engagement recess 98C of the second engagement claw 98, and the second engagement piece 36 and the second engagement claw 98 are engaged. In addition, in the state where the first arm portion 94B is elastically deformed toward the proximal end side of the retainer cover 90, the end portion on the other side in the width direction of the first engagement piece 34 is in the engagement recess 94C of the first engagement claw 94. The first engagement piece 34 and the first engagement claw 94 are engaged with each other. As a result, the tip of the retainer cover 90 is attached to the retainer 30. In this state, the surrounding wall 74D of the sub nozzle 70 is fitted into the exposure hole 110 of the retainer cover 90, and the nozzle portion 74 of the sub nozzle 70 is exposed to the arm lower side. In this state, the outer peripheral edge portion of the lower surface of the retainer cover 90 abuts on the end surfaces of the side walls 30B and 30C of the retainer 30, and the rib 112 of the retainer cover 90 is disposed inside the side walls 30B and 30C.

  As described above, according to the vehicle wiper device 10 of the present embodiment, the first engagement claw 94 is formed at the distal end portion of the retainer cover 90 as described above, and the first engagement claw 94 is the retainer cover. 90 is configured to be elastically deformable toward the base end side. And the 1st engagement claw 94 is engaged with the 1st engagement piece 34 of the retainer 30, and the movement to the WS glass G side in the front-end | tip part of the retainer cover 90 is restrict | limited. Accordingly, the first engagement piece 34 and the first engagement claw 94 are arranged side by side in the longitudinal direction of the retainer 30 and the displacement direction of the elastic deformation of the first engagement claw 94 is set to a direction along the longitudinal direction. The front end portion of the cover 90 can be attached to the retainer 30. Accordingly, even in the portion on the distal end side of the retainer 30 having a small width dimension, a sufficient amount of displacement of the first engagement claw 94 is secured without being restricted by the width dimension of the retainer 30, and the distal end portion of the retainer cover 90 is attached to the retainer 30. Can be installed securely. Moreover, the first engagement claw 94 is engaged with the first engagement piece 34 protruding from the side wall 30 </ b> B of the retainer 30 to the opening of the retainer 30. For this reason, it can suppress that the engagement state of the 1st engagement claw 94 and the 1st engagement piece 34 is visually recognized from the opposite side (arm upper side) from WS glass G. As described above, the front end portion of the retainer cover 90 can be attached to the retainer 30 while improving the appearance of the vehicle wiper device 10.

  Hereinafter, this point will be further described using a comparative example. That is, for example, in the comparative example, when the first engagement claw 94 is configured to be elastically deformable in the width direction of the retainer cover 90 similarly to the third engagement claw 102, the first engagement claw is similar to the above. It is possible to prevent the engagement state between 94 and the first engagement piece 34 from being viewed from above the arm. However, in this comparative example, it is necessary to engage the first engagement claw 94 with the tip of the first engagement piece 34. That is, the first engagement claw 94 and the first engagement piece 34 are arranged side by side in the width direction of the retainer 30, and the displacement direction of the elastic deformation of the first arm portion 94 </ b> B of the first engagement claw 94 is that of the retainer 30. It is necessary to secure an area that is elastically displaced in the width direction. On the other hand, the width dimension at the distal end portion of the retainer cover 90 is set to be smaller than the proximal end portion, corresponding to the width dimension of the retainer 30. For this reason, in the retainer cover 90 in the comparative example, the width dimension of the portion of the retainer cover 90 where the first engaging claws 94 are formed may be reduced, and the rigidity of the retainer cover 90 may not be ensured. Further, depending on the width dimension of the retainer 30, the first engaging claw 94 may not be formed on the retainer cover 90, and it is difficult to attach the retainer cover 90 to the retainer 30 firmly at the distal end portion. It becomes.

  In contrast, according to the vehicle wiper device 10 of the present embodiment, as described above, the first engagement piece 34 and the first engagement claw 94 are arranged side by side in the longitudinal direction of the retainer 30. The distal end portion of the retainer cover 90 can be attached to the retainer 30 with the displacement direction of the elastic deformation of the first engagement claw 94 as the direction along the longitudinal direction. Thereby, even in a portion on the distal end side of the retainer 30 having a small width dimension, a sufficient displacement amount of the first engagement claw 94 and rigidity at the distal end portion of the retainer cover 90 are secured without being restricted by the width dimension of the retainer 30. The tip of the retainer cover 90 can be securely attached to the retainer 30. In addition, the first engagement claw 94 is engaged with the first engagement piece 34 protruding from the side wall 30 </ b> B of the retainer 30 to the opening of the retainer 30. For this reason, it can suppress that the engagement state of the 1st engagement claw 94 and the 1st engagement piece 34 is visually recognized from the arm upper side. As described above, the front end portion of the retainer cover 90 can be attached to the retainer 30 while improving the appearance of the vehicle wiper device 10.

  Further, as described above, the second engagement claw 98 is formed at the distal end portion of the retainer cover 90 in addition to the first engagement claw 94, and the second engagement claw 98 is formed at the distal end of the retainer cover 90. The direction of elastic deformation of the second engagement claw 98 is also configured as a direction along the longitudinal direction. And the 2nd engagement nail | claw 98 is engaged with the 2nd engagement piece 36 of the retainer 30, and the movement to the WS glass G side in the retainer cover 90 is restrict | limited. For this reason, in addition to the first engagement claw 94, the movement of the retainer cover 90 toward the WS glass G side can also be restricted by the second engagement claw 98. Thereby, the attachment state in the front-end | tip part of the retainer cover 90 can be maintained favorable.

  Further, in the attached state of the retainer cover 90, the first engagement claw 94 is engaged with the first engagement piece 34 of the retainer 30 in a state in which the first engagement claw 94 is elastically deformed toward the proximal end side of the retainer cover 90. The claw 98 is engaged with the second engagement piece 36 of the retainer 30 in a state of being elastically deformed toward the distal end side of the retainer cover 90. For this reason, relative movement of the retainer cover 90 with respect to the retainer 30 in the longitudinal direction of the retainer 30 can be limited by the first engaging claws 94 and the second engaging claws 98.

  Further, the sub nozzle 70 (nozzle body 72) is adjacent to the inner side surface of the side wall 30B on the one side in the width direction of the retainer 30 at a position on the proximal end side of the retainer 30 with respect to the second engagement piece 36 of the retainer 30. Has been placed. For this reason, in the retainer cover 90, the first engagement claw 94, the second engagement claw 98, and the sub nozzle 70 (nozzle body 72) can be arranged together on one side in the width direction of the retainer 30. As a result, in the first engagement claw 94, the second engagement claw 98, and the portion on the other side in the width direction of the retainer 30 with respect to the sub nozzle 70 (nozzle body 72) (specifically, the hose arrangement area HA), the main A main nozzle hose 68 connected to the nozzle 60 can be arranged. Therefore, an efficient arrangement structure can be realized inside the distal end portion of the narrow retainer 30.

  Furthermore, the second engagement claw 98 of the retainer cover 90 is engaged with the end portion on the one side in the width direction of the second engagement piece 36 of the retainer 30, and the width direction of the second engagement piece 36 of the retainer 30 is The first engaged portion 72B of the sub nozzle 70 is engaged in the up-down direction at the other end. For this reason, the sub nozzle 70 can be engaged with the retainer 30 by utilizing the second engagement piece 36 with which the second engagement claw 98 is engaged. Thereby, the arrangement space of the 2nd engagement nail | claw 98 and the sub nozzle 70 can be saved, and the attachment structure of the retainer 30 with respect to the 2nd engagement claw 98 and the sub nozzle 70 can be simplified.

  Further, the retainer cover 90 is formed with a pair of third engagement claws 102 configured to be elastically deformable inward in the width direction of the retainer cover 90, and the pair of third engagement claws 102 are formed on the retainer cover 90. In a state of being elastically deformed inward in the width direction, the tip end portion of the third engagement piece 42 of the retainer 30 is engaged. For this reason, it is possible to restrict movement of the retainer cover 90 in the longitudinal intermediate portion to the lower side of the arm, and it is possible to restrict movement of the retainer cover 90 in the width direction. Therefore, the mounting state of the retainer cover 90 can be improved.

  Further, a base end side engaging portion 106 is formed at the base end portion of the retainer cover 90, and the base end side engaging portion 106 is inserted into the arm upper side of the fourth engaging piece 44 of the retainer 30. The base end portion of the retainer cover 90 is attached to the retainer 30. Thereby, the position of the retainer cover 90 with respect to the retainer 30 can be determined in an initial stage when the retainer cover 90 is attached to the retainer 30. Thereby, the attachment property of the retainer cover 90 can be improved.

  The retainer cover 90 has an exposure hole 110, and the surrounding wall 74 </ b> D of the sub nozzle 70 is fitted in the exposure hole 110. Thereby, the sub nozzle 70 can be utilized for positioning the retainer cover 90 with respect to the retainer 30. Thereby, the attachment state of the retainer cover 90 can be further improved.

  Further, the second engagement piece 36 of the retainer 30 is bent inward in the width direction from the lower end portion of the side wall 30 </ b> B and is disposed at the opening of the retainer 30. Further, the third engagement piece 42 of the retainer 30 is bent inward in the width direction from the lower ends of the side walls 30 </ b> B and 30 </ b> C, and is disposed at the opening of the retainer 30. Therefore, in the same manner as described above, even when the second engagement claw 98 and the second engagement piece 36 are engaged and the third engagement piece 42 and the third engagement claw 102 are engaged, Visual recognition from the side is suppressed. Thereby, the appearance of the vehicle wiper device 10 can be improved.

  In the present embodiment, the first engagement claw 94 and the second engagement claw 98 are formed at the tip of the retainer cover 90, but the second engagement claw 98 may be omitted. In this case, only the first engagement claw 94 is formed at the distal end portion of the retainer cover 90, but the first engagement claw 94 is configured to be elastically deformable toward the proximal end side of the retainer cover 90. Since the base end side engaging portion 106 is formed at the base end portion of the retainer cover 90, the position of the retainer 30 in the longitudinal direction of the retainer cover 90 is set to the first engaging claw 94 and the base end side engaging portion. It can be limited by the unit 106.

  Further, in the present embodiment, the second engagement piece 36 of the retainer 30 serves as both a portion where the second engagement claw 98 of the retainer cover 90 is engaged and a portion where the sub nozzle 70 is engaged. Yes. Instead of this, the portion of the retainer cover 90 where the second engaging claw 98 is engaged and the portion where the sub nozzle 70 is engaged may be set separately.

DESCRIPTION OF SYMBOLS 10 ... Vehicle wiper apparatus, 14 ... Arm head, 30 ... Retainer, 34 ... 1st engaging piece (1st engaging part), 36 ... 2nd engaging piece (2nd engaging part), 42 ... 3rd Engagement piece (third engagement part), 60 ... main nozzle (first washer nozzle), 70 ... sub nozzle (second washer nozzle), 90 ... retainer cover (cover), 94 ... first engagement claw, 98 ... 2nd engagement claw, 102 ... 3rd engagement claw, G ... Windshield glass, PA ... Pivot shaft

Claims (5)

An arm head fixed to the pivot shaft and rotating about the pivot shaft;
The base end has a long shape connected to the arm head, and the width dimension is set smaller toward the front end side, and it is formed in a concave shape opened to the windshield glass side when viewed from the longitudinal direction. And a retainer in which a first engagement portion protruding inwardly from a side wall on one side in the width direction is formed in an opening in a tip side portion,
A cover that is formed in a long plate shape and closes the opening of the retainer in a state where a base end portion is engaged with the retainer;
The cover is formed at the front end portion of the cover and is elastically deformable toward the base end side of the cover, and is engaged with the first engagement portion to move the front end portion of the cover toward the windshield glass. A first engaging claw that restricts
Wiper apparatus for vehicles provided with. A second engaging portion that protrudes inward from the side wall on the one side in the width direction of the retainer is formed in the opening of the retainer at a position on the proximal end side of the retainer with respect to the first engaging portion. And
The front end portion of the cover is formed with a second engagement claw configured to be elastically deformable toward the front end side of the cover at a position on the base end side of the cover with respect to the first engagement portion. ,
2. The vehicle wiper device according to claim 1, wherein the second engagement claw is engaged with the second engagement portion to restrict movement of a front end portion of the cover toward the windshield glass. 3. A first washer nozzle is attached to the retainer at a position on the distal end side with respect to the first engagement portion, and a second washer nozzle is attached at a position on the proximal end side with respect to the second engagement portion. And
3. The vehicle wiper device according to claim 2, wherein the second washer nozzle is accommodated and disposed adjacent to an inner surface of a side wall on one side in the width direction of the retainer.   The second engagement claw is engaged with a portion of the second engagement portion on the distal end side of the retainer, and the second washer nozzle is disposed on a portion of the second engagement portion on the proximal end side of the retainer. The vehicle wiper device according to claim 3, which is engaged. A pair of third engaging portions projecting from the side walls on both sides in the width direction of the retainer are formed in the opening of the retainer at a position on the proximal end side of the retainer with respect to the second engaging portion. ,
The cover is formed with a pair of third engagement claws configured to be elastically deformable on the inner side in the width direction of the cover,
The vehicle wiper according to any one of claims 2 to 4, wherein the third engagement claw is engaged with the third engagement portion to restrict movement of the cover toward the windshield glass. apparatus.

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