JP6081116B2 - Vehicle wiper - Google Patents

Description

  The present invention relates to a vehicle wiper.

  Conventionally, a vehicle wiper includes a wiper arm and a wiper blade connected to the wiper arm. The wiper blade includes a blade rubber, a leaf spring-like backing for imparting rigidity and elasticity to the blade rubber, and a connecting lever that is assembled to hold the backing and the blade rubber. (For example, refer to Patent Document 1). The connecting device for the wiper blade is provided with a clip (joint part) that is swingably assembled to the projecting portions projecting on both side surfaces and coupled to the wiper arm. In addition, a pair of edge portions extending so as to hold the lower surface of the clip are formed at the tip portion of the wiper arm at the position corresponding to the swing axis line, and on the leg portion extending downward (toward the wiping surface) of the clip. Thus, the tip portion is restricted from moving in the vertical direction with respect to the clip and is fixed to the clip.

JP-T-2006-500303 gazette

However, in the above-described vehicle wiper, each member overlaps in the vertical direction at the portion where the edge portion is formed, and there is a problem that the height from the wiping surface increases.
The present invention has been made to solve the above problems, and an object of the present invention is to provide a vehicle wiper capable of reducing the height from the wiping surface.

In the first aspect of the present invention, a long blade rubber having a wiping portion for wiping the wiping surface, and a rigidity and elasticity are provided along the longitudinal direction of the blade rubber. A leaf spring-like backing, and a lever holding portion that surrounds the periphery of the blade rubber and the base of the blade rubber and the backing in the longitudinal center portion of the backing and restricts the movement in the direction orthogonal to the longitudinal direction. A vehicle wiper comprising: a connection lever having a clip; a clip assembled to the connection lever so as to be rotatable about a rotation axis orthogonal to both side surfaces of the connection lever; and a wiper arm connected to the clip. , the distal end connecting portion of the front Symbol wiper arm, an upper covering wall covering substantially the upper surface of the clip, the outer side in the side walls of said clip The are substantially the outer side covering wall covering is formed, both outer covering wall does not protrude inward from respective lower edge the outer side of the clip, vertically middle of the outer side surface of both side walls of said clip the portions are respectively formed engaging protrusion along the longitudinal direction, the both outer side covering wall was formed along the longitudinal direction in a state where the longitudinal direction distal end side is opened in each of the vertical direction intermediate portion It has an engagement recess , and the gist is that the engagement recess and the engagement protrusion are engaged in the up-down direction in a connected state between the tip connection portion of the wiper arm and the clip .

According to this configuration , since the engaging recess and the engaging projection are engaged in the vertical direction in the connected state of the tip connecting portion of the wiper arm and the clip, the movement of the wiper arm in the vertical direction is restricted. Then, in this case, a pair of edges extending so as to hold the lower surface of the clip, for example, are formed at positions corresponding to the rotation axis center where the clip rotates (the members overlap in the vertical direction from the wiping surface). The height from the wiping surface can be reduced as compared with the prior art that increases the height of the wiping surface. Further, for example, the tip connecting portion of the wiper arm can have a simple shape as compared with the case where the edge portion as the holding portion is formed, and the manufacture thereof can be facilitated.

In the invention according to claim 2, a long blade rubber having a wiping portion for wiping the wiping surface, and provided along the longitudinal direction of the blade rubber for imparting rigidity and elasticity to the blade rubber. A leaf spring-like backing, and a lever holding portion that surrounds the periphery of the blade rubber and the base of the blade rubber and the backing in the longitudinal center portion of the backing and restricts the movement in the direction orthogonal to the longitudinal direction. A vehicle wiper comprising: a connection lever having a clip; a clip assembled to the connection lever so as to be rotatable about a rotation axis orthogonal to both side surfaces of the connection lever; and a wiper arm connected to the clip. Engaging convex portions are formed on the outer side surfaces of the both side walls of the clip, respectively, and the front end connecting portion of the wiper arm has a front An upper covering wall that substantially covers the upper surface of the clip and a both-side covering wall that substantially covers the outer surface of the clip are formed, and the engaging convex portion is assembled to the both side covering walls along the longitudinal direction with the clip. the vertical direction are engagement recess to be engaged is formed, wherein the coupling levers, the engagement recess is edge coupling portion of the wiper arm in the longitudinal direction of the position not engaged with the engaging protrusion In this state, there is provided a retaining wall portion that is in contact with the retaining portion formed in the tip connecting portion in the longitudinal direction, and the retaining wall portion can be wiped when the wiping portion is pressed against the wiping surface. In summary, the clip is formed so as to be able to come into contact with the retaining portion in the longitudinal direction over the entire wiping rotation range, which is the rotation range of the clip with respect to the connecting lever .

According to the invention described in claim 2 and the invention described in claim 4 below, the engaging projections are formed on the outer side surfaces of the both side walls of the clip, respectively, and both side coverings at the tip connecting portion of the wiper arm are formed. Since the wall is formed with an engaging convex portion and an engaging concave portion that engages in the vertical direction by being assembled with the clip along the longitudinal direction, the movement of the wiper arm in the vertical direction is restricted. Then, in this case, a pair of edges extending so as to hold the lower surface of the clip, for example, are formed at positions corresponding to the rotation axis center where the clip rotates (the members overlap in the vertical direction from the wiping surface). The height from the wiping surface can be reduced as compared with the prior art that increases the height of the wiping surface. Further, for example, the tip connecting portion of the wiper arm can have a simple shape as compared with the case where the edge portion as the holding portion is formed, and the manufacture thereof can be facilitated.
Further, connected to the levers, the engagement in the longitudinal position if the recess is not engaged with the engagement projection in a state where there is a tip connecting portion of the wiper arm, the stop portion and the longitudinal dropout formed distal end connecting portion Since the retaining wall portion that abuts in the direction is provided, it is difficult for the clip (and thus the wiper blade) to fall off from the tip connecting portion of the wiper arm. Specifically, in the above configuration, the distal end connecting portion of the wiper arm is first relatively moved downward with respect to the clip, and then the distal end connecting portion is relatively moved in the longitudinal direction (the engaging concave portion is engaged with the engaging convex portion. Will be assembled). On the other hand, the tip connecting portion of the wiper arm is first moved relative to the clip in the longitudinal direction (the engaging recess is removed from the engaging projection), and then the tip connecting portion is relatively moved upward to be removed. Become. For example, in a state where the vehicle wiper is attached to the vehicle, even if the clip moves relatively in the longitudinal direction with respect to the tip connecting portion, the tip connecting portion relatively moves upward due to the urging force applied to the wiper arm. Therefore, the clip side (that is, the wiper blade) does not easily fall off from the tip connecting portion.

According to the configuration of the invention described in claim 2, the detachable wall portion is a rotation range at the time of wiping that is a rotation range with respect to the coupling lever of the clip in a wiping state in which the wiping portion is pressed against the wiping surface. Therefore, the clip is unlikely to drop off from the tip connecting portion of the wiper arm in the wiping enabled state. That is, in the state where the vehicle wiper is attached to the vehicle and the wiping portion is in press contact with the wiping surface, the rotation angle of the clip changes along the wiping surface (curved surface), but the retaining portion and retaining wall portion are By abutting in the longitudinal direction, the clip side (that is, the wiper blade) does not easily fall off from the tip connecting portion.

According to a third aspect of the present invention, in the vehicle wiper according to the second aspect , the retaining wall portion is connected to the clip in a non-wiping state in which the wiping portion is not pressed against the wiping surface. The gist of the invention is that it is formed so as to be able to contact the retaining portion in the longitudinal direction over the entire non-wiping rotation range, which is a rotatable range with respect to the lever.

  According to this configuration, the retaining wall portion is removed in the entire non-wiping rotation range, which is a rotatable range with respect to the coupling lever of the clip in a non-wiping state where the wiping portion is not pressed against the wiping surface. Since the stopper is formed so as to be able to come into contact with the stopper in the longitudinal direction, it is difficult for the clip to fall off from the tip connecting portion of the wiper arm even in the non-wiping state. That is, for example, even when the rotation angle of the clip changes in a so-called lockback state, the clip side (that is, the wiper blade) can be easily moved from the tip connecting portion by the retaining portion and the retaining wall portion contacting in the longitudinal direction. It will not drop out. Of course, since the non-wiping rotation range is a range beyond that including the wiping rotation range, the clip is more difficult to drop off from the tip connecting portion in the wiping enabled state.

In the invention described in claim 4 , a long blade rubber having a wiping portion for wiping the wiping surface, and provided along the longitudinal direction of the blade rubber for imparting rigidity and elasticity to the blade rubber. A leaf spring-like backing, and a lever holding portion that surrounds the periphery of the blade rubber and the base of the blade rubber and the backing in the longitudinal center portion of the backing and restricts the movement in the direction orthogonal to the longitudinal direction. A vehicle wiper comprising: a connection lever having a clip; a clip assembled to the connection lever so as to be rotatable about a rotation axis orthogonal to both side surfaces of the connection lever; and a wiper arm connected to the clip. Engaging convex portions are formed on the outer side surfaces of the both side walls of the clip, respectively, and the front end connecting portion of the wiper arm has a front An upper covering wall that substantially covers the upper surface of the clip and a both-side covering wall that substantially covers the outer surface of the clip are formed, and the engaging convex portion is assembled to the both side covering walls along the longitudinal direction with the clip. An engagement recess that engages in the vertical direction is formed, and the connection lever has a tip connection portion of the wiper arm at a longitudinal position where the engagement recess does not engage the engagement projection And a retaining wall portion that is in longitudinal contact with the retaining portion formed at the tip connecting portion, and is located below the center of the rotating shaft on the both side walls of the clip. The end surface is an upper lower end surface that is higher than the lower end surface at a position corresponding to the rotation axis center, and the retaining portion is the upper lower surface in a state where the tip connecting portion of the wiper arm is assembled to the clip. Abuts the end face And summarized in that is a projection which projects so that.

  According to the same configuration, the lower end surface of the clip that is spaced apart from the center of the rotation axis of rotation of the clip is an upper lower end surface that is higher than the lower end surface of the position corresponding to the center of the rotation axis. This is made possible by the absence of a rotation connecting portion (support shaft) provided at a position corresponding to the center of the rotation axis. And, since the retaining portion is a protrusion protruding so as to contact the upper lower end surface in a state where the tip connecting portion of the wiper arm is assembled to the clip, in addition to the engaging concave portion and the engaging convex portion, The upper covering wall and the protrusion also (supplementally) restrict the movement of the wiper arm relative to the clip in the vertical direction. Therefore, in the assembled state, the vertical movement of the wiper arm with respect to the clip can be firmly restricted.

According to a fifth aspect of the present invention, in the vehicle wiper according to the fourth aspect, guide grooves are formed on both side surfaces of the connecting lever, and guides that fit into the guide grooves are formed on inner side surfaces of both side walls of the clip. A protrusion is formed, and the protrusion is disposed so as to contact the lower end of the guide protrusion, and restricts one rotation of the clip relative to the connecting lever by contacting one end of the guide groove. This is the gist.

  According to this configuration, the protrusion is disposed so as to contact the lower end of the guide convex portion of the clip, and restricts one rotation of the clip with respect to the connecting lever by contacting one end of the guide groove. Further, the rotation of the guide projection can be restricted within a preset range while increasing the rigidity of the guide projections.

  ADVANTAGE OF THE INVENTION According to this invention, the wiper for vehicles which can make the height from a wiping surface low can be provided.

The perspective view of the wiper for vehicles in this Embodiment. 1 is a partially exploded perspective view of a vehicle wiper according to the present embodiment. FIG. 3 is a partial cross-sectional view of the vehicle wiper according to the present embodiment. FIG. 3 is a partial cross-sectional view of the vehicle wiper according to the present embodiment. (A) (b) The perspective view of the connection lever in this Embodiment. The perspective view which assembled | attached the backing in this Embodiment, the connection lever, and the clip. The perspective view of the clip in this Embodiment. The side view which assembled the backing in this Embodiment, the connection lever, and the clip. The perspective view of the wiper blade in this Embodiment. The perspective view of the wiper arm in this Embodiment. The side view for demonstrating the wiper for vehicles in this Embodiment. The side view for demonstrating the wiper for vehicles in this Embodiment. The side view for demonstrating the wiper for vehicles in this Embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, a vehicle wiper 1 is for wiping raindrops and the like adhering to a windshield as a wiping surface of an automobile, and includes a wiper arm 2 and a wiper blade 3 connected to the wiper arm 2. It consists of and. The wiper arm 2 is fixed to a pivot shaft (not shown) whose base end is reciprocated at a predetermined angle by a driving force of a wiper motor (not shown), and reciprocally swings as the pivot shaft reciprocates. Do exercise. The wiper arm 2 is urged at its distal end connecting portion 4 toward the windshield (wiping surface) by an urging mechanism (not shown). The wiper blade 3 is connected to the tip connecting portion 4 of the wiper arm 2.

  As shown in FIGS. 2 to 4, the wiper blade 3 has a long blade rubber 11 having a wiping portion 11 a for wiping the wiping surface (front glass), and a longitudinal direction of the blade rubber 11. A leaf spring-like backing 12 is provided for imparting rigidity and elasticity to the blade rubber 11. As shown in FIG. 3, the blade rubber 11 of the present embodiment includes a base portion 11b having a substantially rectangular cross section in the longitudinal direction, a constricted portion 11c extending downward from the center in the width direction of the base portion 11b, and the constricted portion 11c. And the wiping portion 11a extending further downward. Further, as shown in FIGS. 2 and 3, only one backing 12 of the present embodiment is provided on the wiper blade 3, and a backing engaging portion 12a is formed at the center in the longitudinal direction. Yes. The backing engaging portion 12a is formed in a shape in which both sides in the width direction of the backing 12 are notched to the center side in the width direction.

  Further, as shown in FIG. 3, the wiper blade 3 surrounds the periphery of the base portion 11 b of the blade rubber 11 and the backing 12 in the center portion in the longitudinal direction of the blade rubber 11 and the backing 12, and moves them in the longitudinal direction. A connecting lever 13 having a lever holding portion 13a for holding by restriction is provided.

  Specifically, the connecting lever 13 is made of a hard resin material, and as shown in FIGS. 2 to 4 and FIGS. 5 (a) and 5 (b), a substantially rectangular parallelepiped-shaped lever main body 13b, and FIGS. As shown in FIG. 5B, the lever main body 13b has an arm-shaped lever holding portion 13a extending downward from both sides in the width direction on the lower end surface and further extending inward in the width direction. As shown in FIG. 3, the lever holding portion 13 a of the present embodiment allows the base portion 11 b and the backing 12 to be placed in a state in which the backing 12 is in contact with (mounted on) the upper end surface of the base portion 11 b of the blade rubber 11. It is configured to surround.

  As shown in FIGS. 2 to 4 and FIG. 5 (a), an upper and lower penetrating portion 13c penetrating so as to communicate from above to the lever holding portion 13a is provided at one end in the longitudinal direction of the lever main body portion 13b. Is formed. The vertical penetrating portion 13c is formed in a substantially quadrangular shape when viewed from the vertical direction. Further, as shown in FIG. 4, the lower end portion of the upper and lower penetrating portion 13c has a smaller longitudinal interval, and a parts accommodating portion for accommodating a support part 14 (see FIG. 2) as a movement restricting member described later. 13d.

  Further, as shown in FIGS. 2 to 4 and FIGS. 5 (a) and 5 (b), one end side in the longitudinal direction of the lever main body portion 13b (a position corresponding to the upper and lower penetrating portions 13c) A shaft insertion hole 13e penetrating in a direction orthogonal to the direction side surface is formed. That is, the shaft insertion hole 13e communicates the outside with the upper and lower penetration part 13c (the part accommodating part 13d). In other words, the shaft insertion hole 13e extends out from the inner side surface in the width direction of the upper and lower penetration part 13c. Is formed.

  Further, as shown in FIGS. 2 and 5 (a) and 5 (b), the lever main body portion 13b extends in the up-down direction at the substantially center, and more specifically, the shaft center (rotation) of the shaft insertion hole 13e. A guide groove 13f extending along an arc concentric with the center of the axis) is formed.

  Further, as shown in FIGS. 5 (a) and 5 (b), a retaining wall 13g extending in the vertical direction protrudes from the other longitudinal end on both side surfaces of the lever main body 13b. Further, as shown in FIG. 5A, an upper wall portion 13h extending in the width direction protrudes from the other longitudinal end portion of the upper surface of the lever main body portion 13b so as to connect the upper end of the retaining wall portion 13g. Is formed.

  Further, as shown in FIG. 5A, a lower wall portion 13i that extends from the lower end of the retaining wall portion 13g to one end side in the longitudinal direction protrudes from the lower end portions on both side surfaces of the lever main body portion 13b. Yes. Further, as shown in FIG. 5 (a), the lower wall portion 13i is opposed to the end portion on the one end side in the longitudinal direction formed in an arc concave shape concentric with the shaft center (rotation shaft center) of the shaft insertion hole 13e. A surface 13j is formed.

Further, as shown in FIGS. 4 and 5 (a), an escape groove 13k is formed in the approximate center of the upper surface of the lever main body 13b.
Further, as shown in FIGS. 1, 2 and 9, the connecting lever 13 extends from one end in the longitudinal direction of the lever main body 13b to the tip in the longitudinal direction, and is smoothly connected to the fin portion 16 of the case 15 described later. A curved connecting portion 13l having a shape is formed.

  The connecting lever 13 configured in this way is assembled with its movement in the longitudinal direction with the backing 12 being restricted. Specifically, first, the backing 12 is inserted into the lever holding portion 13a of the connecting lever 13 along the longitudinal direction, and the parts accommodating portion 13d (see FIGS. 3 and 4) and the backing engaging portion 12a (see FIG. 2). ) In the longitudinal direction so that the positions in the longitudinal direction coincide with each other. Then, the support part 14 is passed through the upper and lower through-holes 13c from above and is fitted (dropped) into the parts accommodating portion 13d, and the backing 12 (backing engaging portion 12a) and the connecting lever 13 (part accommodating portion 13d). As a result, the connecting lever 13 and the backing 12 are restricted from moving in the longitudinal direction (positioned in the longitudinal direction). As shown in FIG. 3, the support part 14 according to the present embodiment includes a central portion 14a extending in the width direction when viewed from the longitudinal direction, and a pair of arm portions 14b extending downward from both ends of the central portion 14a. The central portion 14a is immersed in the part accommodating portion 13d and engaged with the parts accommodating portion 13d in the longitudinal direction, and each arm portion 14b is engaged with the backing engaging portion 12a in the longitudinal direction. It has become.

  And the clip 17 (refer FIG. 2) connected with the said wiper arm 2 is assembled | attached to the connection lever 13 so that rotation is possible at the rotation axis center (axis center of the said shaft insertion hole 13e) orthogonal to the both sides | surfaces. .

  As shown in FIG. 2, the clip 17 is a pair extending from the position corresponding to the rotation axis center (the axis center of the shaft insertion hole 13e) to the longitudinal base end side along both side surfaces of the lever main body 13b. Side wall 17a and an upper wall 17b that connects the pair of side walls 17a and extends along the upper surface of the lever main body 13b.

  As shown in FIGS. 2 and 3, a support shaft 17 c that rotatably supports the clip 17 by being inserted into the shaft insertion hole 13 e is formed on the inner side surface of the pair of side walls 17 a of the clip 17. ing. As shown in FIG. 3, the support shaft 17c is set to a length that protrudes into the upper and lower through-holes 13c, and the front end of the support shaft 17c is abutted against the upper surface of the support part 14 fitted in the parts accommodating portion 13d. It is set as a removal restricting portion 17e for coming into contact and restricting the upward removal of the support part 14. In the present embodiment, the shaft insertion hole 13e and the support shaft 17c constitute a rotation connecting portion.

  Further, as shown in FIGS. 2 and 6 to 8, engagement convex portions 17 f are respectively formed on the outer surfaces of the pair of side walls 17 a of the clip 17. The engagement convex part 17f is formed in the longitudinal direction one end side edge part (back side of the support shaft 17c) of the side wall 17a. Moreover, the engagement convex part 17f is formed in the center of the up-down direction in the side wall 17a. Further, the upper and lower end surfaces of the engagement convex portion 17f are formed substantially along the longitudinal direction, and only the other end portion in the longitudinal direction at the lower end surface thereof is a curved surface that is curved upward toward the other end side.

  Further, as shown in FIG. 6, the end of the upper wall 17 b of the clip 17 on the rotation shaft center side (end on the support shaft 17 c side and one end in the longitudinal direction) A notch 17g is formed to allow the above. That is, as shown in FIG. 2, the pair of side walls 17a of the clip 17 slightly extends to one end side in the longitudinal direction from the support shaft 17c. Is rotated in a direction that collides with the upper surface of the lever main body 13b during rotation, but a notch 17g is formed so as to allow rotation without forming a recess on the upper surface.

  As shown in FIGS. 7 and 8, the lower end surface of the side wall 17a of the clip 17 has an arcuate surface 17h centered on the rotation shaft center (the shaft center of the support shaft 17c and the shaft insertion hole 13e). Is formed. As shown in FIG. 8, the arc surface 17 h is set so as to face the facing surface 13 j of the connecting lever 13. The arcuate surface 17h of the present embodiment is set so as to face the facing surface 13j with a slight gap in the initial state (the state immediately after the assembly), and the rotation connecting portion (the shaft insertion hole 13e). And the support shaft 17c) are set so as to be in sliding contact with the facing surface 13j when wear occurs.

  Moreover, the lower end surface of the clip 17 on both side walls 17a at a position spaced from the center of the rotation axis (support shaft 17c) to the other end in the longitudinal direction is the center of the rotation axis as shown in FIGS. The upper lower end surface 17i is higher than the corresponding lower end surface (that is, the arc surface 17h). In other words, the lower end surface of both side walls 17a of the clip 17 of the present embodiment is an arc surface 17h in which only the lower part of the center of the rotation shaft (support shaft 17c) protrudes in an arc convex shape from the upper lower end surface 17i. .

  Further, as shown in FIG. 8, the other end in the longitudinal direction of the both side walls 17a of the clip 17 is vertically mounted between the connecting lever 13 and the longitudinal direction of the clip retaining wall 13g. It is set so that a gap S extending along the line is generated.

  Further, as shown in FIG. 7, guide convex portions 17j that fit into the guide grooves 13f (see FIG. 5) are formed on the inner side surfaces of the side walls 17a of the clip 17. The guide convex portion 17j is guided by the guide groove 13f while being fitted in the guide groove 13f, and restricts further rotation of the clip 17 with respect to the connecting lever 13 according to the vertical end position of the guide groove 13f. Is to do.

  Further, as shown in FIGS. 2, 4, and 6, an elastic protrusion 17k that protrudes upward and has flexibility in the vertical direction is formed on the upper wall 17b of the clip 17. The elastic protrusion 17k is formed at a position corresponding to the escape groove 13k (see FIGS. 4 and 5A) of the connecting lever 13, and is assembled by the escape groove 13k (see FIGS. 4 and 6). ) Is allowed to bend downward.

  As shown in FIGS. 1 and 2, the wiper blade 3 surrounds the periphery of the base portion 11b of the blade rubber 11 and the backing 12 on both sides in the longitudinal direction of the connecting lever 13 (lever holding portion 13a). A pair of cases 15 each having a case holding portion 15a (see FIG. 2) that holds and controls movement in the orthogonal direction is provided.

  The case 15 is made of a soft (flexible) resin material, and the shape of the case holding portion 15a is the same as that of the lever holding portion 13a. That is, the lever holding portion 13a and each case holding portion 15a are connected in the longitudinal direction in an assembled state, and surround (accommodate) the base portion 11b and the backing 12 of the blade rubber 11 over the entire longitudinal direction. Has been.

  Further, the upper surface of the case 15 is made of a rubber material or an elastomer material, and is provided with a fin portion 16 for converting traveling wind to a pressing force toward the wiping surface side by two-color molding. Specifically, the fin portion 16 is formed in a shape having a curved surface that becomes higher toward the vehicle rear side (from the wiping surface) at the stop position of the wiper blade 3. The curved connecting portion 13l of the connecting lever 13 gradually becomes a shape corresponding to the curved surface from the substantially rectangular parallelepiped lever main body portion 13b toward the fin portion 16 as shown in FIGS. It is formed as follows.

  In the present embodiment, the upper end surfaces of the connecting portions of the case 15 (including the fin portion 16) on the side corresponding to the curved connecting portion 13l and the connecting lever 13 (curved connecting portion 13l) are flush with each other. In other words, it is formed so that the shape of the connecting portion of both of them is continuously shifted. Further, as shown in FIGS. 2 and 9, the case 15 (including the fin portion 16) has a step portion 15b extending in the longitudinal direction so that the upper surface is covered with the connecting lever 13 (the curved connecting portion 13l). Is formed.

  Further, as shown in FIG. 1, the wiper blade 3 is fixed to both ends in the longitudinal direction of the backing 12, and the longitudinal end of the backing 12, the longitudinal end of the case 15 (including the fin portion 16), A cap 18 that covers the longitudinal end of the base 11b of the blade rubber 11 is provided.

The wiper blade 3 configured as described above has its clip 17 connected and fixed to the tip connecting portion 4 of the wiper arm 2.
As shown in FIGS. 2 and 10, the tip connecting portion 4 of the wiper arm 2 has an upper covering wall 4a that substantially covers the upper surface (of the upper wall 17b) of the clip 17 and an outer surface of the clip 17 (of both side walls 17a). Both side covering walls 4b are formed so as to cover substantially the same. As shown in FIG. 2, the both side covering walls 4 b are formed with engagement recesses 4 c that are vertically engaged with the engagement protrusions 17 f of the clips 17 by being assembled with the clips 17 along the longitudinal direction. Has been. The engaging recess 4c is formed in the center portion in the vertical direction of the both side covering walls 4b so that the front end side (one end side) in the longitudinal direction is opened, and the engaging projection 17f extends in the longitudinal direction from the opening (FIG. 11). When inserted and assembled (from the state shown in FIG. 8) to the state shown in FIG. 8, the engagement convex portion 17f is engaged in the vertical direction.

  Further, as shown in FIG. 10, a protrusion 4d as a retaining portion protruding toward the center in the width direction is formed on the inner side surface of the both side covering walls 4b of the tip connecting portion 4. As shown in FIG. 11, the protrusion 4 d is formed on the retaining wall of the coupling lever 13 in a state where the distal end coupling portion 4 is in a longitudinal position where the engagement concave portion 4 c does not engage with the engagement convex portion 17 f. It is formed so as to come into contact with the portion 13g in the longitudinal direction (state of a two-dot chain line). Here, as shown in FIG. 12, the retaining wall portion 13g of the present embodiment rotates the clip 17 with respect to the connecting lever 13 in a wiping state in which the wiping portion 11a of the blade rubber 11 is pressed against the windshield. The wiping rotation range X1, which is a possible range, is formed so as to be able to contact the protrusion 4d in the longitudinal direction. Furthermore, as shown in FIG. 13, the retaining wall portion 13g of the present embodiment is capable of rotating the clip 17 with respect to the connecting lever 13 in a non-wiping state in which the wiping portion 11a is not pressed against the windshield. Is formed so as to be able to contact the protrusion 4d in the longitudinal direction in the entire non-wiping rotation range X2. FIG. 12 illustrates a state in which the clip 17 has been rotated to the maximum in the wiping enabled state. FIG. 13 shows a state in which the clip 17 is rotated to the maximum in the non-wiping state (for example, a so-called lockback state) (a state in which the guide convex portion 17j is in contact with a terminal position above the guide groove 13f). Is illustrated.

  That is, the protrusion 4d is prevented from coming off when the tip connecting portion 4 is moved relative to the clip 17 in the longitudinal direction from the state where the tip connecting portion 4 is assembled to the clip 17 (see FIG. 8). It is provided so as to abut against the wall portion 13g in the longitudinal direction and restrict further relative movement (disconnection) in the longitudinal direction. Further, in the state where the vehicle wiper 1 is attached to the vehicle and the wiping portion 11a is in press contact with the windshield, the rotation angle of the clip 17 changes along the windshield (curved surface). In X1 (see FIG. 12), the protrusion 4d and the retaining wall portion 13g are in contact with each other in the longitudinal direction so that further relative movement (disengagement) in the longitudinal direction is restricted. Furthermore, in this embodiment, for example, even if the rotation angle of the clip 17 changes in a so-called lock-back state, the protrusion 4d and the retaining wall portion 13g are disposed in the non-wiping rotation range X2 (see FIG. 13). By abutting in the longitudinal direction, the relative movement (disconnection) in the longitudinal direction beyond that is set to be regulated. Further, the protrusion 4d is allowed to move in the vertical direction along the retaining wall portion 13g in a state where the projection 4d is in contact with the retaining wall portion 13g in the longitudinal direction (see FIGS. 11 to 13). It is provided so as to be allowed to move in the vertical direction through a gap S extending along the vertical direction between the wall portion 13g and the other longitudinal end portion of both side walls 17a of the clip 17.

  As a result, when assembling, the tip connecting portion 4 is first relatively moved downward with respect to the clip 17, and then the tip connecting portion 4 is relatively moved in the longitudinal direction (the engaging recess 4c becomes the engaging protrusion 17f). Will be assembled). On the other hand, when removing, the tip connecting portion 4 is first moved relative to the clip 17 in the longitudinal direction (the engaging concave portion 4c is removed from the engaging convex portion 17f), and then the tip connecting portion 4 is moved upward. It will be removed by relative movement.

Further, as shown in FIG. 8, the protrusion 4 d is formed at a position in contact with the upper lower end surface 17 i of the clip 17 in a state where the tip connecting portion 4 is assembled to the clip 17.
Further, the protrusion 4d is formed at a position in contact with the lower end of the guide convex portion 17j (see FIG. 7) in a state where the tip connecting portion 4 is assembled to the clip 17, and is formed in the guide groove 13f (see FIG. 5). It is provided so as to restrict the rotation of one of the clip 17 and the tip connecting portion 4 with respect to the connecting lever 13 by contacting the lower end. That is, the protrusion 4d is provided so as to restrict the rotation of the one while being integrated with the guide convex portion 17j and enhancing the rigidity in the state where the tip connecting portion 4 is assembled to the clip 17. .

  As shown in FIGS. 2, 4 and 10, the upper projection wall 4a of the distal end connecting portion 4 is assembled to the clip 17 (see FIG. 8), and the elastic protrusion 17k is downward. A fitting hole 4e is formed as a fitting portion to be engaged with the elastic protrusion 17k in the longitudinal direction by fitting the elastic protrusion 17k in an unbent state. This prevents the distal end connecting portion 4 and the clip 17 from moving relative to each other in the longitudinal direction unless any external force is applied to the elastic protrusion 17k.

Further, as shown in FIG. 3, a wrap portion 4f extending downward to a position coinciding with the backing 12 is formed on both side covering walls 4b of the tip connecting portion 4 in the vertical direction.
Next, the operation of the vehicle wiper 1 configured as described above will be described.

  In the vehicle wiper 1, the wiper blade 3 (excluding the clip 17) can be rotated with respect to the wiper arm 2 and the clip 17 fixed to the tip connecting portion 4. The leading end connecting portion 4 of the wiper arm 2 is urged toward the windshield (wiping surface) by an urging mechanism (not shown), so that the urging force is applied to the blade rubber 11 via the clip 17, the connecting lever 13, and the backing 12. The blade rubber wiping portion 11a is pressed and contacted with the windshield (wiping surface) over the entire length in the longitudinal direction. Further, during traveling, the traveling air is converted into a pressing force toward the windshield (wiping surface) by the fin portion 16, and the wiping portion 11a of the blade rubber is pressed against the windshield (wiping surface). For these reasons, when the wiper arm 2 is reciprocally rotated about the pivot axis, a good wiping operation is performed.

Next, the characteristic effects of the above embodiment will be described below.
(1) Engagement convex portions 17f are formed on the outer side surfaces of the side walls 17a of the clip 17 respectively, and are assembled to the side walls 4b of the distal end connecting portion 4 of the wiper arm 2 along the clip 17 along the longitudinal direction. As a result, the engagement concave portion 4c that engages with the engagement convex portion 17f in the vertical direction is formed, so that the vertical movement of the wiper arm 2 with respect to the clip 17 is restricted. In this case, a pair of edges extending so as to hold the lower surface of the clip, for example, are formed at positions corresponding to the rotation axis center where the clip 17 rotates (the member is overlapped in the vertical direction and the wiping surface It is possible to reduce the height from the wiping surface as compared to the conventional technique in which the height from the height is increased. Further, for example, the tip connecting portion 4 of the wiper arm 2 can be made simpler than that in which the edge portion as the holding portion is formed, and the manufacture thereof can be facilitated.

  (2) The connecting lever 13 is provided with a retaining portion formed on the tip connecting portion 4 in a state where the tip connecting portion 4 is in a longitudinal position where the engaging recess 4c does not engage with the engaging convex portion 17f. Since the retaining wall portion 13g that abuts the projection 4d) in the longitudinal direction is provided, the clip 17 (and thus the wiper blade 3) is unlikely to fall off from the tip connecting portion 4. Specifically, in the above configuration, the tip connecting portion 4 of the wiper arm 2 is first relatively moved downward with respect to the clip 17, and then the tip connecting portion 4 is relatively moved in the longitudinal direction (the engaging recess 4 c is engaged with the engaging projection). It is assembled (by engaging with the portion 17f). Conversely, the distal end coupling portion 4 of the wiper arm 2 is first moved relative to the clip 17 in the longitudinal direction (the engagement concave portion 4c is removed from the engagement convex portion 17f), and then the distal end coupling portion 4 is moved upward. Move it and remove it. For example, in a state where the vehicle wiper 1 is attached to the vehicle, even if the clip 17 moves relative to the distal end connecting portion 4 in the longitudinal direction, it is applied by an urging mechanism (not shown) applied to the wiper arm 2. Since the tip connecting portion 4 is difficult to relatively move upward due to the force, the clip 17 side (that is, the wiper blade 3) does not easily fall off from the tip connecting portion 4.

  (3) The retaining wall portion 13g has a protrusion 4d in the entire wiping rotation range X1 that is a rotatable range of the clip 17 with respect to the connecting lever 13 in the wiping state in which the wiping portion 11a is pressed against the windshield. Since it is formed so as to be able to come into contact with the longitudinal direction, the clip 17 is unlikely to fall off from the tip connecting portion 4 of the wiper arm 2 in the wiping enabled state. That is, in the state where the vehicle wiper 1 is attached to the vehicle and the wiping portion 11a is pressed against the windshield, the rotation angle of the clip 17 changes along the windshield (curved surface), but the protrusion 4d and the retaining wall When the portion 13g abuts in the longitudinal direction, the clip 17 side (that is, the wiper blade 3) does not easily fall off from the tip connecting portion 4.

  (4) The retaining wall portion 13g has a non-wiping rotation range X2 that is a rotatable range relative to the coupling lever 13 of the clip 17 in a non-wiping state where the wiping portion 11a is not pressed against the windshield. Since the protrusion 4d is formed so as to be able to come into contact with the longitudinal direction, the clip 17 is difficult to drop off from the distal end connecting portion 4 of the wiper arm 2 even in the non-wiping state. That is, for example, even if the rotation angle of the clip 17 changes in a so-called lockback state, the protrusion 4d and the retaining wall portion 13g abut on the clip 17 side (that is, the wiper blade 3) from the tip connecting portion 4 in the longitudinal direction. ) Will not easily fall off. Of course, since the non-wiping rotation range X2 is a range beyond that including the wiping rotation range X1, the clip 17 is more difficult to drop off from the distal end connecting portion 4 in the wiping enabled state.

  (5) The lower end surface of the clip 17 at a position separated from the center of the rotating shaft where the clip 17 rotates is an upper lower end surface 17i whose position is higher than the lower end surface (arc surface 17h) of the position corresponding to the center of the rotating shaft. However, this is possible due to the absence of a rotation connecting portion (support shaft 17c) provided at a position corresponding to the center of the rotation axis. The retaining portion is a protrusion 4d that protrudes so as to come into contact with the upper lower end surface 17i in a state where the tip connecting portion 4 is assembled to the clip 17, so that the engaging recess 4c and the engaging protrusion In addition to 17f, the upper covering wall 4a and the protrusion 4d also (supplementally) restrict the vertical movement of the wiper arm 2 (tip connecting portion 4) with respect to the clip 17. Therefore, in the assembled state, the vertical movement of the wiper arm 2 (tip connecting portion 4) with respect to the clip 17 can be firmly restricted.

  (6) The protrusion 4d is disposed so as to contact the lower end of the guide projection 17j of the clip 17 and regulates one rotation of the clip 17 relative to the connecting lever 13 by contacting one end of the guide groove 13f. Therefore, the rotation of the protrusion 4d and the guide protrusion 17j can be restricted within a preset range while enhancing the rigidity of each other.

  (7) An elastic protrusion 17k is formed on the upper wall 17b of the clip 17, and the elastic protrusion 17k is fitted to the upper covering wall 4a of the tip connecting portion 4 in a state where the elastic protrusion 17k is not bent downward. Thus, a fitting hole 4e is formed which engages with the elastic protrusion 17k in the longitudinal direction. Therefore, if any external force is not applied to the elastic protrusion 17k, the distal end connecting portion 4 and the clip 17 are prevented from relatively moving in the longitudinal direction.

  (8) The blade rubber 11 and the backing 12 are held while the movement in the direction perpendicular to the longitudinal direction is restricted by the lever holding portion 13a and the case holding portion 15a. Since the connecting lever 13 connected to the wiper arm 2 via the clip 17 is assembled with the movement in the longitudinal direction restricted with respect to the backing 12, the backing 12 does not shift in the longitudinal direction with respect to the connecting lever 13. Fixed. Moreover, since the case 15 is paired and the lever holding portion 13a of the connecting lever 13 is directly disposed on the upper surface 12b of the backing 12 between the case holding portions 15a of each case 15, for example, it corresponds to the entire length of the backing 12 Compared with the structure provided with a connecting lever that holds the center in the longitudinal direction of the case as a single case, the overlapping of the members in the height direction of the wiper blade 3 can be reduced. As a result, the height from the wiping surface can be sufficiently reduced, and the wiper blade 3 having a slim and slim design with good design can be obtained.

  (9) Since a notch 17g for allowing its own rotation is formed at the end of the upper wall 17b of the clip 17 on the shaft rotation center side (end on the support shaft 17c side), for example, While the height of the wall 17b from the wiping surface is kept low, the clip 17 can be allowed to rotate without forming a recess for allowing the upper surface of the lever main body 13b to rotate. It should be noted that the fact that the recess for allowing the rotation to be allowed to be formed on the upper surface of the lever main body portion 13b contributes to maintaining high rigidity of the lever main body portion 13b (the connecting lever 13).

  (10) At the pivot shaft center positions on both side surfaces of the lever main body portion 13b of the coupling lever 13 and on both side walls 17a of the clip 17, a pivot coupling portion (shaft insertion hole 13e and support shaft are coupled to each other so as to be pivotable). 17c) enables the clip 17 to rotate with respect to the connecting lever 13. Further, a circular arc surface 17h concentric with the center of the rotation shaft is formed on the lower end surface of both side walls 17a of the clip 17, and an opposing surface 13j facing the circular arc surface 17h is formed on the connecting lever 13. Therefore, it is possible to add a portion that is rotatably supported to a portion other than the rotation connecting portion (the shaft insertion hole 13e and the support shaft 17c). That is, the clip 17 always receives a force (pressing force) downward (in the direction of the wiping surface) from the wiper arm 2, but by receiving the arc surface 17 h at the lower end of the both side walls 17 a with the opposing surface 13 j of the connecting lever 13. The durability of the rotation connecting portion (the shaft insertion hole 13e and the support shaft 17c) can be improved. In the present embodiment, in the initial state (the state immediately after assembly), the arc surface 17h is set so as to face the facing surface 13j with a slight gap, so the dimensional accuracy is not increased. Even in this case, the assemblability is improved and smooth rotation by the rotation connecting portion (the shaft insertion hole 13e and the support shaft 17c) is ensured. Then, when slight wear occurs in the rotation connecting portion (the shaft insertion hole 13e and the support shaft 17c), the arcuate surface 17h and the connecting lever 13 are in sliding contact with each other, so that the further rotation connecting portion (shaft insertion) It becomes possible to suppress wear of the hole 13e and the support shaft 17c).

  (11) Since the connecting lever 13 is formed with the curved connecting portion 13l connected to the fin portion 16 of the case 15, the case 15 and the connecting lever 13 are smoothly connected (a shape in which a sudden step is suppressed) and Can improve aesthetics. In addition, since a steep step can be suppressed, rectification of the traveling wind can be improved.

  (12) The connecting portion between the case 15 (including the fin portion 16) and the connecting lever 13 (curved connecting portion 13l) is set so that the upper end surfaces thereof are flush with each other. it can. Moreover, since the case 15 (including the fin portion 16) is formed with a step portion 15b extending in the longitudinal direction so that the upper surface is covered with the connecting lever 13 (the curved connecting portion 13l), for example, the step portion 15b Intrusion of foreign matter (snow, dead leaves, etc.) from the connecting portion of the upper end surface to the inner side can be reduced.

  (13) The lever holding portion 13a and the case holding portion 15a are configured to surround and hold the base portion 11b and the backing 12 with the backing 12 in contact with the upper end surface of the base portion 11b of the blade rubber 11. There is no wall interposed between the blade rubber 11 and the backing 12. Therefore, the height from the wiping surface of the wiper blade 3 can be further reduced as compared with the one having the wall.

  (14) Since the front end connecting portion 4 of the wiper arm 2 is formed with a wrap portion 4f extending downward to a position coinciding with the backing 12 in the vertical direction, for example, the lever holding portion 13a is screwed together with the backing 12 in this portion. Even if it is attempted to be deformed as described above, the deformation can be suppressed by the wrap portion 4f.

  (15) Since the support part 14 is provided so as to be engaged with the backing 12 and the connecting lever 13 in the longitudinal direction and restrict the relative movement in the longitudinal direction, the positions of the backing 12 and the connecting lever 13 are adjusted. By assembling the support parts 14, the relative positions in the longitudinal direction can be fixed. In this case, for example, when the blade rubber and the connecting lever are assembled, the elastic locking portion is integrally formed with the connecting lever, for example, an elastic locking portion for restricting relative movement in the longitudinal direction with the backing. There is no such thing as getting caught. Therefore, it is possible to provide the wiper blade 3 that has good assembling properties and can suppress breakage (breaking or wear) during the assembling.

  (16) Since the clip 17 is provided with a slip-out restricting portion 17e (tip portion of the support shaft 17c) for restricting the support part 14 from slipping upward, the clip 17 is automatically attached to the connecting lever 13 by assembling. Further, it is possible to regulate the upward escape of the support part 14.

  (17) The removal restricting portion 17e is inserted into the shaft insertion hole 13e of the connecting lever 13 and serves as a support shaft 17c (its front end portion) that rotatably supports the clip 17, so that the support shaft 17c has two functions. For example, the complexity of the shape of the clip 17 can be suppressed.

  (18) Since the protrusion 4d is formed by punching, for example, the protrusion direction and the protrusion amount can be stably manufactured as compared with the case where the protrusion 4d is formed. That is, in the bending formation, there is a concern that the protruding direction and the protruding amount may not be stabilized due to the spring back, but the protrusion 4d can be formed easily and stably with high precision by the punching formation. This contributes to obtaining the above-described effect relating to the protrusion 4d stably.

The above embodiment may be modified as follows.
In the above embodiment, the tip connecting portion 4 is provided with the protrusion 4d as the retaining portion, and the connecting lever 13 is provided with the retaining wall portion 13g. However, the present invention is not limited to this. It is good also as a structure which is not provided.

  The retaining wall portion 13g is formed so as to be able to contact the projection 4d in the longitudinal direction (long in the vertical direction) over the entire non-wiping rotation range X2 (see FIG. 13). The length in the vertical direction may be changed without limitation. For example, while the wiping rotation range X1 (see FIG. 12) is formed so as to be able to come into contact with the protrusion 4d in the longitudinal direction, the clip 17 rotates to the maximum in a non-wiping state (for example, a so-called lockback state). In the moved state (the guide convex portion 17j is in contact with the upper end position of the guide groove 13f, see FIG. 13), it may be a retaining wall portion that does not contact in the longitudinal direction.

  In the above embodiment, the retaining portion is the protrusion 4d that protrudes so as to contact the upper lower end surface 17i of the clip 17. However, the present invention is not limited to this, for example, on the side walls 17a of the clip 17 A slit extending in the longitudinal direction and having an open end may be formed, and the slit may be a protrusion arranged to be movable in the longitudinal direction.

  In the above embodiment, the protrusion 4d is disposed so as to contact the lower end of the guide convex portion 17j of the clip 17. However, the present invention is not limited to this, and the position is shifted with respect to the lower end of the guide convex portion 17j. May be provided.

  In the above embodiment, the upper wall 17b of the clip 17 is formed with the notch 17g for allowing its own rotation. However, the present invention is not limited to this, for example, on the upper surface of the lever main body 13b. A recess for allowing rotation may be formed.

  In the above embodiment, the lower surface of the side wall 17a of the clip 17 is formed with the circular arc surface 17h, and the connecting lever 13 is formed with the opposing surface 13j facing the circular arc surface 17h. Alternatively, the arc surface 17h and the opposed surface 13j may not be formed.

  In the above embodiment, the connecting lever 13 is formed with the curved connecting portion 131 that smoothly connects to the fin portion 16 of the case 15, but is not limited thereto, and the bending connecting portion 131 is not formed. It is good also as a connection lever. Although the case 15 is provided with the fin portion 16, the present invention is not limited to this. For example, when the vehicle wiper for wiping the rear glass is used, the case may be provided with no fin portion 16. .

  In the above embodiment, the connecting portion between the case 15 (including the fin portion 16) and the connecting lever 13 (curved connecting portion 13l) is set so that the upper end surfaces thereof are flush with each other. It is good also as a structure which a level | step difference produces in the upper end surface of a connection part, without being limited to. Further, the case 15 (including the fin portion 16) is provided with a step portion 15b extending in the longitudinal direction so that the upper surface is covered with the connecting lever 13 (the curved connecting portion 13l). The stepped portion 15b may not be formed.

  In the above embodiment, the lever holding portion 13a and the case holding portion 15a are configured to surround the base portion 11b and the backing 12 in a state where the backing 12 is in contact with the upper end surface of the base portion 11b of the blade rubber 11. However, the present invention is not limited to this, and a wall may be interposed between the blade rubber 11 and the backing 12. The wall may be integrally formed with the lever holding portion 13a and the case holding portion 15a, or may be provided separately.

  In the above embodiment, the distal end connecting portion 4 of the wiper arm 2 is formed with the wrap portion 4f extending downward to the position that coincides with the backing 12 in the vertical direction. It is good also as a front-end | tip connection part in which 4f is not formed.

  In the above embodiment, the support part 14 is provided so as to be engaged with the backing 12 and the connecting lever 13 in the longitudinal direction and restrict the relative movement in the longitudinal direction. However, the present invention is not limited to this. For example, an elastic locking portion for restricting relative movement in the longitudinal direction with the backing may be formed integrally with the connecting lever.

  In the embodiment described above, the clip 17 is provided with the removal restricting portion 17e (the tip portion of the support shaft 17c) for restricting the upward removal of the support part 14. However, the present invention is not limited to this. It is good also as a clip in which the omission control part 17e is not provided. In this case, for example, the support part (movement restricting member) may include a retaining claw for restricting the support part (movement restricting member) from slipping in the direction opposite to its assembly direction (engaging with the connecting lever). Even if it does in this way, it can assemble easily and can control the omission of a support part (movement regulation member) automatically. For example, it is good also as a structure by which a support part (movement control member) is press-fitted and fixed. Further, for example, a support part (movement restriction member) may be bonded and fixed.

  Further, for example, the clip may not be provided with the removal restricting portion 17e, and the movement restricting member may be integrally formed on the clip itself. If it does in this way, the increase in a number of parts can be suppressed compared with what provided support parts 14 (movement regulation member) separately.

  In addition, the removal restricting portion 17e is the tip of the support shaft 17c that is inserted into the shaft insertion hole 13e of the connecting lever 13 and supports the clip 17 so as to be rotatable. If possible, the drop-out restricting portion may be provided in another portion of the clip 17 (a portion different from the support shaft 17c).

  In the above embodiment, the lever main body portion 13b is formed with the upper and lower penetrating portion 13c penetrating so as to communicate from the upper side to the lever holding portion 13a. However, the present invention is not limited to this, and may be fitted in another configuration. For example, the upper and lower penetrating portion 13c does not penetrate upward, and the support part 14 is first inserted into the lever main body portion 13b from the shaft insertion hole 13e and then fitted into the lower part accommodating portion 13d. (Dropped) may be engaged with the backing 12 (backing engaging portion 12a) and the connecting lever 13 (part housing portion 13d) in the longitudinal direction. If it does in this way, the rigidity of the connection lever 13 (lever main-body part 13b) can be made high, for example by setting it as the structure which the upper and lower penetration part 13c does not penetrate upwards.

In the above embodiment, the protrusion 4d is formed by stamping, but the present invention is not limited to this, and it may be formed by bending or cutting.
The technical idea that can be grasped from the above embodiment and other examples will be described below together with the effects thereof.

The upper wall connecting the side walls of the (b) before Symbol clips, elastic projections having flexibility in the vertical direction as well as projecting upwardly is formed, on said covering wall in the distal end connecting portion of the wiper arm, the The elastic projection is fitted in a state where it is assembled to a clip and the elastic projection is not bent downward, and a fitted portion is formed to engage with the elastic projection in the longitudinal direction. It shall be the feature.

  According to this configuration, the elastic protrusion is formed on the upper wall of the clip, and the elastic protrusion is fitted to the upper covering wall of the tip connecting portion without being bent downward. Since the fitted portion that engages with the protrusion in the longitudinal direction is formed, the distal end connecting portion and the clip are prevented from relatively moving in the longitudinal direction unless any external force is applied to the elastic protrusion.

  DESCRIPTION OF SYMBOLS 2 ... Wiper arm, 4 ... Tip connection part, 4a ... Upper coating wall, 4b ... Side coating wall, 4c ... Engagement recessed part, 4d ... Projection (detachment prevention part), 11 ... Blade rubber, 11a ... Wiping part, 11b ... Base , 12 ... backing, 13 ... coupling lever, 13a ... lever holding part, 13f ... guide groove, 13g ... retaining wall part, 17 ... clip, 17a ... side wall, 17f ... engaging convex part, 17i ... upper lower end face, 17j ... Guide convex part, X1 ... Rotation range at the time of wiping, X2 ... Rotation range at the time of non-wiping.

Claims (5)

A long blade rubber having a wiping portion for wiping the wiping surface;
A leaf spring-like backing provided along the longitudinal direction of the blade rubber for imparting rigidity and elasticity to the blade rubber;
A connecting lever having a lever holding portion that surrounds the base portion of the blade rubber and the periphery of the backing in the longitudinal center portion of the blade rubber and the backing and restricts the movement of the backing rubber in a direction orthogonal to the longitudinal direction;
A clip assembled to the connection lever so as to be rotatable about a rotation axis orthogonal to both side surfaces of the connection lever;
A vehicle wiper comprising a wiper arm coupled to the clip,
The distal end connecting portion of the front Symbol wiper arm, an upper covering wall covering substantially the upper surface of the clip, said substantially cover the outer side covering wall outer surface in the opposite side walls of the clip is formed, both outer covering walls, respectively The lower edge does not protrude inward from the outer surface of the clip,
Engagement convex portions are formed along the longitudinal direction in the middle portion in the vertical direction of the outer side surface on both side walls of the clip,
Wherein both outer side covering wall has in each vertically intermediate portion in the longitudinal direction of the distal end side of the engaging recess formed in the longitudinal direction in a state in which an opening,
A wiper for a vehicle , wherein the engagement recess and the engagement projection are engaged in a vertical direction in a connected state of a tip connecting portion of the wiper arm and the clip . A long blade rubber having a wiping portion for wiping the wiping surface;
A leaf spring-like backing provided along the longitudinal direction of the blade rubber for imparting rigidity and elasticity to the blade rubber;
A connecting lever having a lever holding portion that surrounds the base portion of the blade rubber and the periphery of the backing in the longitudinal center portion of the blade rubber and the backing and restricts the movement of the backing rubber in a direction orthogonal to the longitudinal direction;
A clip assembled to the connection lever so as to be rotatable about a rotation axis orthogonal to both side surfaces of the connection lever;
A wiper arm coupled to the clip;
A vehicle wiper comprising:
Engaging protrusions are formed on the outer surfaces of both side walls of the clip,
An upper covering wall that substantially covers the upper surface of the clip and a both-side covering wall that substantially covers the outer surface of the clip are formed at the tip connecting portion of the wiper arm, and the both side covering walls are formed along the longitudinal direction of the clip. An engagement recess that engages with the engagement protrusion in the vertical direction is formed.
The connecting lever includes a stopper portion formed in the tip connecting portion and a longitudinal direction in a state where the tip connecting portion of the wiper arm is in a longitudinal position where the engaging recess does not engage with the engaging convex portion. Is provided with a retaining wall part that comes into contact with
The retaining wall portion includes the retaining portion and the retaining portion in the entire wiping rotation range, which is a rotatable range of the clip with respect to the connecting lever in a wiping state in which the wiping portion is pressed against the wiping surface. A wiper for a vehicle, wherein the wiper is formed so as to be capable of contacting in a longitudinal direction. The vehicle wiper according to claim 2 ,
The retaining wall portion is configured to retain the retaining member in a non-wiping rotation range that is a rotatable range of the clip with respect to the connection lever in a non-wiping state where the wiping portion is not pressed against the wiping surface. A wiper for a vehicle, characterized in that the wiper is formed so as to be able to abut on a portion in the longitudinal direction. A long blade rubber having a wiping portion for wiping the wiping surface;
A leaf spring-like backing provided along the longitudinal direction of the blade rubber for imparting rigidity and elasticity to the blade rubber;
A connecting lever having a lever holding portion that surrounds the base portion of the blade rubber and the periphery of the backing in the longitudinal center portion of the blade rubber and the backing and restricts the movement of the backing rubber in a direction orthogonal to the longitudinal direction;
A clip assembled to the connection lever so as to be rotatable about a rotation axis orthogonal to both side surfaces of the connection lever;
A wiper arm coupled to the clip;
A vehicle wiper comprising:
Engaging protrusions are formed on the outer surfaces of both side walls of the clip,
An upper covering wall that substantially covers the upper surface of the clip and a both-side covering wall that substantially covers the outer surface of the clip are formed at the tip connecting portion of the wiper arm, and the both side covering walls are formed along the longitudinal direction of the clip. An engagement recess that engages with the engagement protrusion in the vertical direction is formed.
The connecting lever includes a stopper portion formed in the tip connecting portion and a longitudinal direction in a state where the tip connecting portion of the wiper arm is in a longitudinal position where the engaging recess does not engage with the engaging convex portion. Is provided with a retaining wall part that comes into contact with
The lower end surface of the clip on both side walls at a position separated from the center of the rotating shaft that rotates is the upper lower end surface that is higher than the lower end surface of the position corresponding to the center of the rotating shaft,
The vehicle wiper according to claim 1, wherein the retaining portion is a protrusion protruding so as to come into contact with the upper lower end surface in a state where the tip connecting portion of the wiper arm is assembled to the clip. The vehicle wiper according to claim 4 ,
Guide grooves are formed on both side surfaces of the connecting lever,
Guide protrusions that fit into the guide grooves are formed on the inner side surfaces of the both side walls of the clip,
The vehicle is characterized in that the protrusion is disposed so as to abut on a lower end of the guide convex portion and regulates one rotation of the clip with respect to the coupling lever by abutting with one end of the guide groove. For wiper.