WO2018235681A1

WO2018235681A1 - Wiper blade

Info

Publication number: WO2018235681A1
Application number: PCT/JP2018/022485
Authority: WO
Inventors: 梅野　多加志; 慶多内山; 裕太山田
Original assignee: 株式会社デンソー; 日本ワイパブレード株式会社
Priority date: 2017-06-20
Filing date: 2018-06-12
Publication date: 2018-12-27
Also published as: JP2019001438A; JP6917209B2

Abstract

The present invention inhibits deterioration of the durability of a section that is connected to a wiper arm. A wiper blade (10) is provided with: a blade rubber (12) which wipes a surface to be wiped; and a backing (14) which is formed into the shape of a plate provided along the blade rubber (12) and which bends in the thickness direction to bias the blade rubber (12) toward the surface to be wiped. In addition, the wiper blade (10) is provided with a first holder (24) which is fixed to an intermediate section, in the longitudinal direction, of the backing (14) and which is coupled to a wire arm (28). Furthermore, the wire blade (10) is provided with a second holder (26) which is locked at the intermediate section, in the longitudinal direction, of the backing (14) in the state of being disposed facing the first holder (24) across the backing (14) and which includes a blade rubber support recess (26F) for supporting a part of the blade rubber (12).

Description

Wiper blade

The present invention relates to a wiper blade.

JP-A-2015-54610 discloses a wiper blade corresponding to height reduction, which wipes the front windshield glass of a vehicle and reduces the number of levers of the wiper blade to suppress the dimension in the height direction. . The wiper blade holds a blade rubber for wiping the wiping surface (front windshield glass), a leaf spring-like backing for biasing the blade rubber toward the wiping surface, and a longitudinal intermediate portion of the blade rubber and the backing. And a rubber holder. The rubber holder is connected to the wiper arm via a clip so that the wiper blade can be attached to the wiper arm.

The force associated with the operation of the wiper motor is input to the portion of the wiper blade connected to the wiper arm. Therefore, as the wiper blade becomes longer, it is desirable that the frictional force between the wiper blade and the wiping surface increases and the decrease in durability of the portion connected to the wiper arm is suppressed.

An object of the present invention is to obtain a wiper blade capable of suppressing the deterioration of the durability of the portion connected to the wiper arm in consideration of the above-mentioned fact.

The wiper blade which solves the above-mentioned subject is formed in plate shape while being provided along with the blade rubber which wipes a wiping surface, and the blade rubber, and attaches the blade rubber to the wiping surface side by bending in the thickness direction. And a first holder fixed to at least one of a longitudinal middle portion of the backing and the first holder and coupled to a wiper arm, and disposed opposite to the first holder with the backing interposed therebetween. And a second holder having a holding groove which is locked in the middle of the backing in the longitudinal direction, and a part of the blade rubber is inserted in the longitudinal direction of the backing to hold a part of the blade rubber. And.

According to the above configuration, the first holder connected to the wiper arm is fixed to the longitudinal middle portion of the backing, and the second holder supporting a portion of the blade rubber faces the first holder across the backing. In the state of being placed in a locked state at least one of the longitudinal middle portion of the backing and the first holder. Thus, the first holder to which the wiper arm is connected is firmly fixed to the backing by dividing the first holder to which the wiper arm is connected and the force is input and the second holder that supports a part of the blade rubber. However, the blade rubber (part) can be held by the second holder even in the portion where the first holder is disposed. As a result, it is possible to suppress the decrease in durability of the portion of the wiper blade connected to the wiper arm.

In the wiper blade, it is preferable that the first holder is formed using a metal material and the second holder is formed using a resin material.

According to the above configuration, the first holder in which the force input from the wiper arm is increased is formed using a metal material, and the strength is low compared to the first holder in order to support a part of the wiper blade. By forming the second holder using a resin material, there is no need to configure the second holder with a material that depends on the strength of the first holder, and a portion that is connected to the wiper arm in the wiper blade while using an inexpensive material It is possible to suppress the decrease in the durability of the

In the wiper blade, the first holder includes a caulking portion caulked on the backing, and the second holder extends from both sides of a relief recess in which the caulking portion is disposed, and the relief recess. And a plurality of engaging portions engaged with the backing.

According to the above configuration, in the state where the caulking portion of the first holder is disposed in the relief concave portion of the second holder, the locking portion provided at the above position in the second holder is engaged with the backing. Thus, the caulking portion of the first holder can be stably held in the relief recess of the second holder, and the relative position of the first holder with respect to the second holder in the longitudinal direction can be regulated. As a result, the attachment state of the first holder and the second holder to the backing can be stabilized.

In the wiper blade, the engagement portion is disposed on both sides in the longitudinal direction of the relief recess with the relief recess interposed therebetween, and the engagement portion is the caulking portion and the caulking portion disposed in the relief recess. It is desirable to be disposed opposite to the longitudinal direction of the backing.

In the wiper blade, a backing insertion hole is disposed on both sides in the longitudinal direction across the first holder fixed to the backing, and the backing inserted through the backing and the backing inserted through the backing insertion hole It is desirable to have an elongated case having a second holding groove formed on the second holder side and in which the blade rubber is held in cooperation with the first holding groove.

According to the above configuration, each case is disposed on both sides in the longitudinal direction of the first holder by inserting the backing extending from both sides in the longitudinal direction of the first holder into the backing insertion hole of each case, and the second holding groove of each case Since the blade rubber can be inserted along the longitudinal direction in cooperation with the first holding groove of the second holder, the blade rubber can be held continuously in the longitudinal direction.

In the wiper blade, a holder locking hole is formed in the backing, and the caulking portion is locked to the backing in a winding state around the end in the short direction of the backing, and the second holder is It is desirable to have a backing locking projection which is engaged by and locked in the holder locking hole.

In the wiper blade, the first holder is formed of a plate material, and is bent from the base wall to a direction opposite to the backing from the backing and a base wall disposed opposite to the thickness direction. The pair of side wall portions are desirably connected via a support pin for attaching a clip to the first holder.

In the wiper blade, the first holder is constituted by a pair of first holder forming portions divided in the lateral direction of the backing, and the pair of first holder forming portions attach a clip to the first holder. It is desirable that they are connected via support pins.

It is a side view showing a wiper blade of this embodiment. It is a disassembled perspective view which disassembles and shows the wiper blade of this embodiment. FIG. 3 is a cross-sectional view showing a cross section of the wiper blade taken along line 3-3 shown in FIG. 1; FIG. 4 is a cross-sectional view showing a cross section of the wiper blade cut along line 4-4 shown in FIG. 1; It is an expansion perspective view disassembled and shown a portion connected with a wiper arm in a wiper blade of this embodiment. It is an enlarged perspective view which expands and shows a 2nd holder. It is a top view which shows a 2nd holder. It is a side view showing the 2nd holder. It is a bottom view which shows a 2nd holder. FIG. 7C is a cross-sectional view showing a cross section of the second holder cut along line 7D-7D shown in FIG. 7B. It is a side view showing the 1st holder, the 2nd holder, etc. which were attached to backing. FIG. 10 is a cross-sectional view showing a cross section of the backing and the second holder cut along line 9-9 shown in FIG. 8; FIG. 10 is a cross-sectional view showing a cross section of the backing, the second holder, and the like cut along line 10-10 shown in FIG. 8; It is an enlarged perspective view corresponding to Drawing 5 which disassembles and shows a portion connected with other forms of a wiper arm. It is a perspective view which shows the assembly process of the part connected with the wiper arm of another form. It is a perspective view which shows the assembly process of the part connected with the wiper arm of another form. It is a perspective view which shows the assembly process of the part connected with the wiper arm of another form. It is a perspective view which shows the assembly process of the part connected with the wiper arm of another form.

A wiper blade 10 according to an embodiment of the present invention will be described with reference to FIGS.

As shown in FIGS. 1 and 2, the wiper blade 10 of the present embodiment is used to wipe the front windshield glass of a vehicle as a wiping surface. The wiper blade 10 comprises a long blade rubber 12 having rubber elasticity for wiping the wiping surface, and a long and plate-like backing 14 provided along the blade rubber 12. Have. Further, the wiper blade 10 is attached to the backing 14 and supports the blade rubber 12, and a pair of caps 18 attached to at least one longitudinal end of the blade rubber 12 and the backing 14. And have. Furthermore, the wiper blade 10 is provided with a coupling device 20 coupled to the wiper arm 28 (see FIG. 5).

(Configuration of blade rubber 12)
As shown in FIGS. 3 and 4, the blade rubber 12 is formed using a material having rubber elasticity. The blade rubber 12 is provided with a base 12B having a substantially rectangular cross section in which recesses 12A are formed on both sides along the longitudinal direction. In addition, the blade rubber 12 extends from the lower side (the wiping surface side) of the base 12B through the neck portion (in FIG. 4, a narrow portion between the base 12B and the wiping portion in FIG. 4) and contacts the wiping surface (Rip section) 12C is provided.

(Configuration of backing 14)
As shown in FIG. 2, the backing 14 is formed using a metal material having spring elasticity such as a steel plate, and the backing 14 has a curved shape in which the central portion in the longitudinal direction is convex, By bending in the thickness direction, the blade rubber 12 functions as a plate spring for urging the blade rubber 12 to the wiping surface side. At the central portion in the longitudinal direction of the backing 14, an elongated holder lock hole 14 </ b> A in which a second holder 26 described later is locked is formed. Further, cap locking holes 14B are formed at both ends in the longitudinal direction of the backing 14 for locking a cap 18 described later.

(Configuration of case 16)
As shown in FIGS. 2 and 4, the case 16 is formed in an elongated shape using a soft resin material, a rubber material (or both a resin material and a rubber material) or the like. As shown in FIG. 4, the case 16 is formed with a backing insertion hole 16A into which the above-described backing 14 is inserted. Further, the base 12B of the blade rubber 12 described above is fitted (inserted and stored) in the case 16 to expose the wiping portion 12C, so that most of the blade rubber 12 (longitudinal direction of the blade rubber 12) A blade rubber support recess 16B is formed as a second holding groove for supporting the end portion and the portion other than the central portion). Furthermore, on the side opposite to the side where the blade rubber support concave portion 16B is formed in the case 16, a fin portion 16C for pressing the wiping portion 12C of the blade rubber 12 toward the wiping surface side by the traveling wind is integrally formed. ing.

(Configuration of cap 18)
As shown in FIG. 2, the cap 18 is formed using a resin material. The cap 18 is locked in a cap locking hole 14 B formed in the backing 14 so that the longitudinal end of the backing 14 and the longitudinal end of the case 16 are covered by the cap 18. There is. Further, the cap 18 is formed with a blade rubber support recess (not shown) for supporting the longitudinal direction end of the blade rubber 12 by fitting the base 12 B of the blade rubber 12 described above. The movement of the blade rubber 12 in the longitudinal direction is restricted by the end of the base 12B of the blade rubber 12 coming into contact with a part of the cap 18. Further, the pair of cases 16 is disposed between the first holder fixed to the backing 14 and the cap 18, and the cap 18 prevents the case 16 from coming out of the longitudinal end of the backing 14 .

(Configuration of coupling device 20)
As shown in FIG. 5, the coupling device 20 is supported by the clip 22 locked to the longitudinal tip of the wiper arm 28, and the clip 22 is supported and locked to the longitudinal center of the backing 14. The first holder 24 and the first holder 24 are opposed to each other with the backing 14 interposed therebetween, disposed on the wiping surface side (opposite to the wiper arm 28) and locked at the central portion in the longitudinal direction of the backing 14 And a holder 26.

(Configuration of clip 22)
The clip 22 is formed using a resin material, and the clip 22 is for detachably connecting the first holder 24 described later to the tip connecting portion 28A of the wiper arm 28. The clip 22 is provided with locking projections 22A that are locked to slit-shaped locking portions 28B respectively formed on both side walls of the tip coupling portion 28A of the wiper arm 28. In addition, the clip 22 includes a rectangular block-shaped locking projection 22B which is locked in a rectangular locking hole 28C formed in the distal end coupling portion 28A of the wiper arm 28 and which is displaceable in the projecting direction. There is. Then, the locking projection 22A and the locking projection 22B of the clip 22 are locked to the locking portion 28B and the locking hole 28C formed in the distal end connecting portion 28A of the wiper arm 28, respectively, whereby the clip 22 is It is fixed to the tip end connecting portion 28A of the wiper arm 28. The clip 22 can be removed from the distal end connecting portion 28A of the wiper arm 28 by displacing the locking projection 22B of the clip 22 in the direction of coming out of the locking hole 28C formed in the distal end connecting portion 28A of the wiper arm 28. It has become. That is, the wiper blade 10 can be removed from the wiper arm 28. Further, the clip 22 is formed with an engagement hole 22C in which a support pin 30 fixed to a first holder 24 described later is engaged. The engagement hole 22C is engaged with the support pin 30 (the support pin 30 is disposed in the engagement hole 22C) so that the clip 22 is rotatably attached to the first holder 24. It has become.

(Configuration of first holder 24)
The first holder 24 is formed by subjecting a steel plate material, which is a metal material, to pressing or the like. The first holder 24 is opposite to the backing 14 from the backing 14 and the base wall portion 24A disposed opposite to the thickness direction of the backing 14 and both ends in the longitudinal direction of the base wall portion 24A and in the lateral direction. And a pair of side wall portions 24 </ b> B extending in a standing state by bending toward the side. Support pin insertion holes 24C into which support pins 30 for attaching the clips 22 to the first holder 24 are inserted are formed in the pair of side wall portions 24B. The support pin 30 is inserted into the support pin insertion hole 24C, spans the pair of side wall portions 24B, and is fixed to the first holder 24 in a state of protruding from the outer surface of the side wall portion 24B. Further, in the pair of side wall portions 24B, a cover locking hole 24D to which the locking projection 32A of the design cover 32 is locked is formed.

Further, the first holder 24 is provided with a plug-in piece 24E which is bent and extended from the end portion on one side in the longitudinal direction of the base wall portion 24A to the opposite side to the backing 14. Then, the locking projection 32A of the design cover 32 is locked in the cover locking hole 24D, and a part of the design cover 32 is inserted into the insertion piece 24E, whereby the design cover 32 is fixed to the first holder 24. It is supposed to be fixed.

Furthermore, the first holder 24 is bent and extended from the both end portions in the longitudinal direction of the base wall portion 24A and the both end portions in the lateral direction toward the backing 14 and also substantially U-shaped as viewed from the longitudinal direction of the backing 14 And four caulking pieces 24F as caulking parts. The four holders 24F are crimped in a winding state (in other words, in a gripping state) around the end (outer edge) of the backing 14 in the lateral direction (in other words, the gripping state), so that the first holder 24 is longitudinally centered in the backing 14 It is locked (fixed) to the part.

(Configuration of second holder 26)
The second holder 26 is formed using a resin material, and the second holder 26 is formed in a plate shape and a rectangular block shape in which the same direction as the longitudinal direction of the backing 14 is a longitudinal direction. Specifically, as shown in FIGS. 6 and 7A to 7D, the second holder 26 is formed in a concave shape in which the backing 14 side is opened, and the central portion in the longitudinal direction of the backing 14 is the inside. And a backing arrangement groove 26A disposed in a housed state. On a bottom surface of a central portion of the backing disposition groove 26A, a backing engagement convex portion 26B which is engaged and engaged with a holder engagement hole 14A (see FIG. 2) formed in the backing 14 is provided upright. Then, the backing locking convex portion 26B is locked in the holder locking hole 14A formed in the backing 14, so that the movement of the second holder 26 in the longitudinal direction of the backing 14 with respect to the backing 14 is restricted. It has become.

Further, in the second holder 26, four caulking pieces 24 F (see FIG. 5) of the first holder 24 are disposed in a state in which the second holder 26 is fixed to the central portion in the longitudinal direction of the backing 14. One relief recess 26C is formed. Furthermore, the second holder 26 includes eight locking claws 26D as engaging portions that project inward from both end portions in the longitudinal direction of the second holder 26 and the open end side of the backing disposition groove 26A. There is. Specifically, the locking claws 26D are disposed one by one on both sides in the longitudinal direction of the relief recess 26C with the relief recesses 26C interposed therebetween (a total of eight for each of the four relief recesses 26C). It is arranged. Then, as shown in FIGS. 8 to 10, the eight locking claws 26D are locked (engaged) with the lateral end (outer edge) of the backing 14, respectively. A holder 26 is adapted to be locked at the longitudinal center of the backing 14. In the present embodiment, the surface 26E on the open end side of the backing disposition groove 26A in the locking claw 26D is inclined. As a result, by pressing the surface 26E against the backing 14, the respective locking claws 26D are displaced, and the backing 14 is easily disposed in the backing disposition groove 26A. That is, the structure for fixing the second holder 26 to the backing 14 is a snap fit structure.

Further, as shown in FIGS. 6, 7C and 7D, the base 12B of the blade rubber 12 described above is provided on the outer surface of the second holder 26 opposite to the side where the backing disposition groove 26A is formed (FIG. As a result, the blade rubber support recess 26F is formed as a first holding groove that accommodates and supports the central portion in the longitudinal direction of the blade rubber 12 by fitting.

(Operation and effect of the present embodiment)
Next, the operation and effects of the present embodiment will be described.

The wiper blade 10 described above is reciprocated together with the wiper arm 28 (see FIG. 5) by the operation of a wiper motor (not shown). Thereby, the windshield glass of the vehicle which is the wiping surface is wiped by the blade rubber 12 of the wiper blade 10.

Here, as shown in FIG. 5, in the connecting device 20 of the wiper blade 10 of the present embodiment, the first holder 24 connected to the wiper arm 28 via the clip 22 is fixed to the middle portion of the backing 14 in the longitudinal direction. And the second holder 26 supporting the middle portion in the longitudinal direction of the blade rubber 12 is engaged with the middle portion in the longitudinal direction of the backing 14 in a state of being disposed opposite to the first holder 24 with the backing 14 interposed therebetween. It has been stopped. Thus, the wiper arm 28 is connected by dividing the first holder 24 to which the wiper arm 28 is connected and the force is input and the second holder 26 that supports the longitudinal intermediate portion of the blade rubber 12. The blade rubber (part) can be held by the second holder even in the portion where the one holder is disposed. As a result, it is possible to suppress a decrease in the durability of the connecting device 20 connected to the wiper arm 28 in the wiper blade 10.
The second holder 26 may be locked to the first holder.

Further, in the present embodiment, the first holder 24 that increases the force input from the wiper arm 28 is formed using a metal material, and compared with the first holder 24 to support a part of the wiper blade 10. The second holder 26 is made of a resin material, and the second holder 26 does not have to be made of a material dependent on the strength of the first holder 24 and is made of an inexpensive material. It is possible to suppress the decrease in durability of the connecting device 20 connected to the wiper arm 28 in the blade 10.

Furthermore, in the present embodiment, in a state in which the four caulking pieces 24F of the first holder 24 are disposed in the four relief recesses 26C of the second holder 26, on both sides of the relief recess 26C in the second holder 26. Eight provided locking claws 26 D are locked to the backing 14. Thereby, the caulking piece portion 24F of the first holder 24 can be stably held in the relief recess 26C of the second holder 26, and the longitudinal direction of the backing 14 relative to the second holder 26 of the first holder 24 can be reduced. Position can be regulated. As a result, the attachment state of the first holder 24 and the second holder 26 to the backing 14 can be stabilized.
Further, in the present embodiment, the long pair of cases 16 are disposed on both sides in the longitudinal direction across the first holder 24 fixed to the backing 14, and each case 16 is a backing through which the backing 14 is inserted. A blade rubber formed on the second holder 26 side with respect to the insertion hole 16A and the backing 14 inserted into the backing insertion hole 16A, and the blade rubber 12 is held in cooperation with the blade rubber support recess 26F of the first holder 24 And a support recess 16B. Therefore, each case 16 is disposed on both sides in the longitudinal direction of the first holder 24 by inserting the backing 14 extending from both sides in the longitudinal direction of the first holder 24 into the backing insertion hole 16A of each case 16. Since the rubber support recess 16B cooperates with the blade rubber support recess 26F of the second holder 26 so that the blade rubber 12 can be inserted along the longitudinal direction, the blade rubber 12 can be used even at the longitudinal center portion where the first holder 24 exists. It can be held continuously in the longitudinal direction of the wiper blade 10.

(Other forms of coupling device 34)
Next, another form of coupling device 34 will be described with reference to FIGS. 11 and 12A to 12D. In the connecting device 34 of the other embodiment, the members and parts corresponding to the connecting device 20 of the wiper blade 10 described above are given the same reference numerals as the members and parts corresponding to the connecting device 20 and the description thereof is omitted. Do.

As shown in FIG. 11, the coupling device 34 of another form is characterized in that the first holder 24 has a split structure. Specifically, the first holder 24 is configured by two first holder forming portions 36 divided in the lateral direction of the backing 14.

The first holder forming portion 36 is formed by subjecting a steel plate material, which is a metal material, to pressing or the like. The first holder forming portion 36 is disposed to face the backing 14 in the thickness direction thereof and has a direction perpendicular to the thickness direction of the backing 14 as the thickness direction (upstanding state with respect to the plate surface of the backing 14) A side wall portion 24B is provided. The two first holder forming portions 36 are joined by welding or the like in a state in which the facing surfaces of the side wall portions 24B are butted to each other. Further, the first holder forming portion 36 is bent and extended from both end portions in the longitudinal direction of the side wall portion 24B toward one side in the thickness direction of the side wall portion 24B and has a substantially U shape when viewed from the longitudinal direction of the backing 14 It has two curved caulking pieces 24F.

And in the connection apparatus 34 of this form, as shown to FIG. 12A, the two 1st holder formation parts 36 are fixed to the backing 14 first. That is, the two caulking pieces 24F of one first holder forming part 36 are caulked in a winding state (in other words, a gripping state) around the end (outer edge) of one side of the backing 14 in the width direction. The two caulking pieces 24F of the other first holder forming portion 36 are caulked in a wound state (in other words, a gripping state) around the other end (outer edge) of the backing 14 on the other side in the short direction. Thereby, the two first holder forming portions 36 are firmly fixed to the backing 14 in a state where the side wall portion 24B of one first holder forming portion 36 and the side wall portion 24B of the other first holder forming portion 36 are in contact with each other. Be done.

Then, as shown in FIG. 12B, the second holder 26 is fixed to the backing 14. The second holder 26 may be fixed to the two first holder forming portions 36. Further, after the second holder 26 is fixed to the backing 14, the design cover 32 is fixed to the end of the first holder 24 as shown in FIG. 12C.

Next, as shown in FIG. 12D, the support pins 30 are inserted into the support pin insertion holes 24C formed in the side walls 24B of the two first holder forming portions 36 and fixed so as to project from the outer surface of the side walls 24B. . That is, the support pin 30 connects the two first holder forming portions 36 to each other. And finally, the engagement hole 22C of the clip 22 is engaged with the projecting portion of the support pin 30, so that the clip 22 is rotatably attached to the first holder 24 (two first holder forming portions 36) It is supposed to be.

Also in the connection device 34 of the present embodiment described above, similarly to the connection device 20 described above, the decrease in durability of the connection device 34 connected to the wiper arm 28 in the wiper blade 10 can be suppressed.

In the

connection devices

20 and 34 described above, the first holder 24 is made of metal and the second holder 26 is made of resin, but the present invention is not limited to this. The materials of the first holder 24 and the second holder 26 may be appropriately selected in consideration of the dimensions, strength, mass, and the like of the

coupling devices

20 and 34.

As mentioned above, although one embodiment of the present invention was described, the present invention is not limited to the above, and can be variously modified and carried out in addition to the above in the range which does not deviate from the main point. Of course.

Claims

With a blade rubber that wipes the wiping surface,
A backing that is provided along the blade rubber and is formed into a plate shape, and is biased in the thickness direction to bias the blade rubber toward the wiping surface;
A first holder fixed to a longitudinal middle portion of the backing and connected to a wiper arm;
A portion of the blade rubber is engaged with at least one of an intermediate portion in a longitudinal direction of the backing and the first holder in a state of being disposed to face the first holder with the backing interposed therebetween, and a part of the blade rubber is elongated A second holder having a first holding groove which is inserted in a direction to hold a part of the blade rubber;
Wiper blade with.
The wiper blade according to claim 1, wherein the first holder is formed using a metal material, and the second holder is formed using a resin material.
The first holder includes a caulking portion caulked on the backing,
The second holder comprises a relief recess in which the caulking portion is disposed, and a plurality of engaging portions extending from both sides of the relief recess and engaged with the backing. The wiper blade according to claim 2.
The engagement portions are respectively disposed on both sides in the longitudinal direction of the relief recess with the relief recess interposed therebetween,
The wiper blade according to claim 3, wherein the engaging portion is disposed to oppose the caulking portion disposed in the relief recess and the backing in the longitudinal direction.
A backing insertion hole which is disposed on both sides in the longitudinal direction across the first holder fixed to the backing, and through which the backing is inserted, and a side of the second holder with respect to the backing inserted through the backing insertion hole 5. The case according to any one of claims 1 to 4, further comprising: an elongated case having a second holding groove formed on the blade rubber and held by the blade rubber in cooperation with the first holding groove. The wiper blade according to item 1.
A holder locking hole is formed in the backing,
The caulking portion is locked to the backing in a winding state at a lateral end of the backing;
The wiper blade according to any one of claims 1 to 5, wherein the second holder includes a backing locking convex portion which is fitted into and locked to the holder locking hole.
The first holder is formed of a plate material, and the base wall portion disposed opposite to the backing and the thickness direction thereof, and bent from the base wall portion to the opposite side to the backing and extended in an upright state And a pair of side wall portions,
The wiper blade according to any one of claims 1 to 6, wherein the pair of side wall portions are connected via a support pin for attaching a clip to the first holder.
The first holder is constituted by a pair of first holder forming portions divided in the lateral direction of the backing,
The wiper blade according to any one of claims 1 to 6, wherein the pair of first holder forming portions are connected via a support pin for attaching a clip to the first holder.