JP2017013696A - Vehicle wiper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain a good attachment state of a cover.SOLUTION: In a vehicle wiper device 10, a cutout 104 for a spring is formed at a base end part of a retainer cover 90 and a compression spring 52 is exposed from a WS glass G side through the cutout 104 for the spring. Therefore, even if a base end side portion of the compression spring 52 protrudes from an opening of the retainer 30 when the retainer 30 rotates relative to an arm head 14 to be disposed at a standing posture position, the compression spring 52 is prevented from interfering with the retainer cover 90. The structure maintains a good attachment state of the retainer cover 90 even when a biasing force is applied to the retainer 30 by the compression spring 52.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). In this vehicle wiper device, the retainer is rotatably connected to the arm head. Specifically, the retainer can be rotated with respect to the arm head between a wiping posture position arranged facing the windshield glass and a standing posture position standing up with respect to the windshield glass. Yes. In addition, a tension spring is provided between the retainer and the arm head inside the retainer at the base end. Accordingly, the retainer is biased toward the wiping posture position side or the standing posture position side by the biasing force of the tension spring.

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

  By the way, in the vehicle wiper device, when a compression spring is used instead of the tension spring, the posture position of the compression spring with respect to the retainer tends to change greatly as the retainer rotates with respect to the arm head. Specifically, when the retainer is disposed at the standing posture position, the compression spring approaches the cover as compared with when the retainer is disposed at the wiping posture position. For this reason, there exists a possibility that a compression spring may hit a cover and it becomes impossible to maintain the attachment state of a cover favorably.

  In view of the above fact, an object of the present invention is to provide a wiper device for a vehicle that can maintain a good attachment state of a cover.

  A vehicle wiper device of the present disclosure is fixed to a pivot shaft, and has an arm head that rotates about the axis of the pivot shaft. The vehicle wiper device has a long shape and opens to the windshield glass side in a cross-sectional view as viewed from the longitudinal direction. A wiping posture position that is formed in a concave shape and is pivotally connected to the arm head and arranged to face the windshield glass, and a standing posture position that stands up with respect to the windshield glass A retainer that is rotated with respect to the arm head, and a compression spring that is disposed inside a base end portion of the retainer, and is configured according to the rotation position of the retainer with respect to the arm head. An urging mechanism for urging the retainer to the wiping posture position side or the standing posture position side by an urging force of a compression spring; and a long plate shape; Together to close the opening of the serial retainer comprises a cover notch for exposing the compression spring from the windshield glass side to the base end portion is formed, the.

  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 so that rotation is possible. As a result, the retainer is rotated with respect to the arm head between the wiping posture position arranged opposite to the windshield glass and the standing posture position standing up with respect to the windshield glass. . In addition, a compression spring constituting an urging mechanism is disposed inside the base end portion of the retainer, and the retainer is moved to the wiping posture position side by the urging force of the compression spring according to the rotation position of the retainer with respect to the arm head. Or it is urged to the standing posture position side. Furthermore, the opening of the retainer is closed by a cover having a long plate shape.

  Here, a notch portion is formed at the base end portion of the cover, and the compression spring is exposed from the windshield glass side by the notch portion. For this reason, even if a compression spring approaches a cover when a retainer is arrange | positioned in a standing posture position, interference with a compression spring and a cover can be prevented. Thereby, the attachment state of a cover can be maintained favorable.

  In the vehicle wiper device according to the present disclosure, a base end side engaging portion that is engaged with the retainer is formed on the base end portion of the cover on both sides in the width direction of the cover with respect to the notch portion. ing.

  According to the said structure, the base end part of the cover in which the notch part was formed can be engaged with a retainer by a base end side engaging part. Thereby, the attachment state of a cover can be maintained further favorably.

  Further, in the vehicle wiper device according to the present disclosure, a first washer nozzle that injects a cleaning liquid onto the windshield glass is attached to a distal end portion of the retainer, and the windshield glass is disposed at a longitudinal intermediate portion of the retainer. A second washer nozzle for injecting cleaning liquid is attached to the cover, and the cover is formed with a pair of partition walls that project from the opening edge of the notch into the retainer and partition the interior space of the retainer in the width direction. A hose connected to the first washer nozzle, a hose connected to the second washer nozzle, and a compression spring are arranged in the space partitioned by the partition wall.

  According to the above configuration, the partition wall can prevent the hose connected to the first washer nozzle and the hose connected to the second washer nozzle from interfering with the compression spring. Therefore, these hoses can be arranged inside the retainer while preventing these hoses from interfering with the compression spring. In addition, since the partition wall protrudes from the opening edge of the notch into the retainer, the partition wall can cover (cover) the visual recognition from the notch of a miscellaneous material such as a hose. Thereby, the inside of a retainer can be coat | covered (covered) with a cover, arrange | positioning a compression spring between partition walls.

  In the vehicle wiper device according to the present disclosure, a rib protruding from the cover to the inside of the retainer is formed on an outer peripheral edge portion of the base end portion of the cover, and the rib is an inner surface of the side wall of the retainer. It is arranged adjacent to.

  According to the said structure, the movement of the width direction in the base end side of the cover with respect to a retainer can be restrict | limited by a rib and a partition wall in the attachment state to the retainer of a cover. Thereby, the attachment state in the base end part of a cover can be made still better.

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) The first engagement piece 34 with which the claw 94 is engaged is integrally formed. 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. The second engaging piece 36 is formed integrally. 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 pieces 42 to be engaged with a third engagement claw 102 of a retainer cover 90 to be described later are integrally formed in the longitudinal direction intermediate portions of the side walls 30 </ b> B and 30 </ b> C of the retainer 30. Is 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 have a pair of fourth engagement pieces 44 (in a broad sense, “retainer side”) that are engaged with a base end portion of a retainer cover 90 described later at the base end portion of the retainer 30. 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 FIGS. 1 and 10, a spring notch 104 as a “notch” 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. Thus, a part of the compression spring 52 is exposed from the arm lower side (WS glass G side) by the spring cutout portion 104. Therefore, the “notch portion exposing the compression spring from the windshield glass side” in the vehicle wiper device of the present disclosure includes a case where a part of the compression spring is exposed from the windshield glass side.

  Further, 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 (both sides) 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 lower than the retainer cover 90 by one step on the arm upper side (inside the retainer 30). 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 disposed with the plate thickness direction as the width direction of the retainer cover 90, and extends (projects) from the opening edge of the spring cutout 104 to the upper side of the arm (inside the retainer 30). Yes. 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. Further, in the attached state of the retainer cover 90, the lower surface of the retainer cover 90 (the surface facing the WS glass G), the first engagement piece 34, the second engagement piece 36, and the third engagement piece 42 of the retainer 30. And the lower surfaces (surfaces facing the WS glass G) of the fourth engaging pieces 44 are arranged flush with each other. That is, the step height of the base end side engaging portion 106 described above is set to be substantially the same as the plate thickness of the fourth engaging piece 44 (retainer 30).

  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. At this time, the compression spring 52 is disposed between the pair of partition walls 108, one partition wall 108 is disposed between the compression spring 52 and the main nozzle hose 68, and the other partition wall 108 is compressed. It arrange | positions between the spring 52 and the hose 78 for sub nozzles. As a result, the compression spring 52, the main nozzle hose 68, and the sub nozzle hose 78 are arranged in the internal space of the retainer 30 partitioned by the partition wall 108, respectively. Further, at this time, the rib 112 of the retainer cover 90 is disposed so as to engage with the inner side surfaces of the side walls 30B and 30C of the retainer 30. 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.

  Here, according to the vehicle wiper device 10 of the present embodiment, as described above, the spring notch 104 is formed at the base end of the retainer cover 90, and the spring notch 104 compresses the compression spring. 52 is exposed from the WS glass G side. For this reason, when the retainer 30 is rotated with respect to the arm head 14 and disposed in the standing posture position, even if the proximal end portion of the compression spring 52 protrudes from the opening of the retainer 30, the compression spring 52 does not move. Interference with the retainer cover 90 can be prevented. Thereby, even when it is set as the structure which gives urging | biasing force to the retainer 30 with the compression spring 52, the attachment state of the retainer cover 90 can be maintained favorable.

  Further, at the base end portion of the retainer cover 90, base end side engaging portions 106 are formed on both sides in the width direction of the retainer cover 90 with respect to the spring cutout portion 104. In the attached state of the retainer cover 90, the proximal end side engaging portion 106 is inserted into the upper side of the arm of the fourth engaging piece 44 of the retainer 30, and is engaged with the fourth engaging piece 44 in the vertical direction of the arm. Has been. Thereby, the movement to the arm lower side (WS glass G side) can be restricted on both sides in the width direction of the notch 104 for spring. Therefore, the attachment state of the retainer cover 90 can be maintained better.

  Furthermore, at the initial stage of attaching the retainer cover 90 to the retainer 30, the proximal end side engaging portion 106 is inserted into the upper side of the arm of the fourth engaging piece 44 of the retainer 30, so that the proximal end portion of the retainer cover 90 is retained by the retainer 30. Mounted on. 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.

  Further, a pair of partition walls 108 are integrally formed at the base end portion of the retainer cover 90, and the partition walls 108 are arranged with the plate thickness direction being the width direction of the retainer cover 90, and are notched for springs. It protrudes from the opening edge of 104 to the inner side of the retainer 30. Therefore, 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. Accordingly, the main nozzle hose 68 and the sub nozzle hose 78 can be arranged inside the retainer 30 while preventing the main nozzle hose 68 and the sub nozzle hose 78 from interfering with the compression spring 52. . The posture of the compression spring 52 disposed inside the retainer 30 changes according to the rotation of the retainer 30 with respect to the arm head 14, but each of the main nozzle hose 68 and the sub nozzle hose 78 is compressed. By partitioning from the space in which the spring 52 is disposed, the main nozzle hose 68 and the sub nozzle hose 78 can be prevented from being sandwiched between the compression spring 52 and the retainer cover 90.

  Furthermore, since the partition wall 108 protrudes from the opening edge of the spring cutout 104 to the inside of the retainer 30, foreign matter inside the retainer 30 such as the main nozzle hose 68 and the sub nozzle hose 78 is separated from the partition wall. It can be covered (covered) by 108 and prevented from being visually recognized from the opening of the spring cutout 104. As a result, the interior of the retainer 30 can be covered (covered) by the retainer cover 90 while the compression spring 52 is disposed between the partition walls 108, and as a result, dead leaves from the opening of the spring notch 104 into the retainer. Intrusion of foreign substances such as can be prevented.

  Further, a rib 112 protruding from the retainer cover 90 to the inside of the retainer 30 is formed on the outer peripheral edge of the retainer cover 90, and the rib 112 is disposed adjacent to the inner side surfaces of the side walls 30B and 30C of the retainer 30. Has been. For this reason, in the attached state of the retainer cover 90, the movement in the width direction on the proximal end side of the retainer cover 90 relative to the retainer 30 can be restricted by the rib 112 and the partition wall 108. More specifically, the movement in the width direction of the base end portion of the retainer cover 90 divided in the width direction by the spring notch 104 can be restricted by the rib 112 and the partition wall 108. Thereby, the attachment state in the base end part of the retainer cover 90 can be made still better.

  Further, the proximal end side engaging portion 106 of the retainer cover 90 is connected to the retainer cover 90 via a stepped portion, and is in a position lower than the retainer cover 90 by one step on the arm upper side (inside the retainer 30). Has been placed. Then, the step height of the base end side engaging portion 106 is set to be substantially the same as the plate thickness of the fourth engaging piece 44 (retainer 30), and the lower surface of the retainer cover 90 in the attached state of the retainer cover 90. And the lower surfaces of the fourth engagement pieces 44 are arranged flush with each other. For this reason, 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, 50 ... Biasing mechanism, 52 ... Compression spring, 60 ... Main nozzle (1st washer nozzle), 68 ... Main nozzle hose (hose), 70 ... Sub nozzle (second washer nozzle), 78 ... Sub nozzle hose (hose), 90 ... Retainer cover (cover), 104 ... Spring notch (notch), 106 ... Base end side engaging part, 108 ... Partition wall, 112 ... Rib, G ... Wind shield glass, PA ... Pivot shaft

Claims (4)

An arm head fixed to the pivot shaft and rotating about the pivot shaft;
It has a long shape and is formed in a concave shape opened to the windshield glass side in a cross-sectional view seen from the longitudinal direction, and a base end portion is rotatably connected to the arm head so as to face the windshield glass. A retainer that is rotated with respect to the arm head between a wiping posture position that is disposed in a position and a standing posture position that stands up with respect to the windshield glass;
The retainer is configured to include a compression spring disposed in the proximal end portion of the retainer, and the retainer is moved to the wiping posture position side by the urging force of the compression spring according to the rotation position of the retainer with respect to the arm head. An urging mechanism for urging to the standing posture position side;
A cover that is formed in a long plate shape, closes the opening of the retainer, and has a notch that exposes the compression spring from the windshield glass side at the base end;
Wiper apparatus for vehicles provided with.   2. The vehicle wiper according to claim 1, wherein a base end side engaging portion that engages with the retainer is formed at a base end portion of the cover on both sides in the width direction of the cover with respect to the notch portion. apparatus. A first washer nozzle for injecting the cleaning liquid onto the windshield glass is attached to the front end of the retainer, and a second washer nozzle for injecting the cleaning liquid onto the windshield glass is attached to the longitudinal middle part of the retainer. And
The cover is formed with a pair of partition walls that project from the opening edge of the notch into the retainer and partition the internal space of the retainer in the width direction.
The hose connected to the first washer nozzle, the hose connected to the second washer nozzle, and a compression spring are respectively disposed in spaces partitioned by the partition wall. Vehicle wiper device.   A rib protruding from the cover to the inside of the retainer is formed at an outer peripheral edge portion of a base end portion of the cover, and the rib is disposed adjacent to an inner side surface of a side wall of the retainer. Item 4. The vehicle wiper device according to Item 3.

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