JP2021041810A - Wiper blade - Google Patents

Abstract

To provide a rotation prevention mechanism for a wiper blade which is compatible with right-hand steering wheel use and left-hand steering wheel use in common.SOLUTION: A lever member 100 includes a rotation regulation device 300 extending into a clip storage hole 102 from the lever member and blocking at least part of the clip storage hole to regulate the rotation of a clip member 200 which is equal to or more than a predetermined degree in one direction and the rotation of the clip member which is equal to or more than a predetermined degree in the other direction.SELECTED DRAWING: Figure 25

Description

The present invention relates to a wiper blade, and more particularly to a wiper blade whose rotation is regulated in a locked back state.

Generally, the wiper includes a wiper blade for wiping the windshield and a wiper arm for supporting the wiper blade with respect to the vehicle body.

The wiper arm includes an arm head fixed to the vehicle, an arm piece capable of holding the wiper blade, a retainer connected to the arm piece, and a bearing device for pivotally attaching the retainer to the arm head. It has a return spring located between the retainer and the arm head. The arm head is provided with a screw hole at one end thereof so that it can be fixed to the vehicle body through a bolt, and a hinge portion is provided at the other end on the opposite side.

The wiper blade includes a blade rubber assembly for wiping the windshield and a lever assembly for attaching the blade rubber assembly to the arm piece so that it can be held. The lever assembly is composed of a plurality of lever members such as a primary lever, a secondary lever, and a yoke, or is composed of only a primary lever.

Generally, the wiper blade can be moved between a use position where the wiper blade is in contact with the windshield and an upright position where the wiper blade is separated from the windshield when washing a car or the like. ..

At the point of use, the retainer extends almost horizontally straight from the arm head. On the other hand, in the upright position, the retainer is rotated in a direction away from the windshield via the bearing device, and is in an upright state with respect to the arm head.

The return spring acts to pull the retainer back to the use position when it is near the use position, while it acts to pull the retainer back to the upright position when the retainer is near the upright position. Therefore, when the wiper device is in use (during wiping work), the retainer is near the use position, so the return spring acts to pull the retainer back to the use position side, and the wiper blade held by the wiper arm It is pressed against the wiped surface with an appropriate pressing force. On the other hand, when the car is washed, the retainer is placed in the upright position so that the retainer is kept in the upright position by the spring force of the return spring (the so-called lockback state is kept in the standing position). There is).

By the way, there is a type of car wash device for washing an automobile, in which the wiper arm is not locked back and the retainer is left in the used position to wash the car. When the car is washed by such a car washing device, the retainer may be moved from the used position to the upright position as a result of the cleaning member coming into contact with the wiper blade or the wiper arm. In this case, when the rotation angle of the moved retainer reaches an angle at which the return spring switches to the state in which the retainer is urged to the upright position side, the wiper arm is vigorously locked by the spring force of the return spring. It will be in the back state, and as a result, the wiper arm may be damaged.

In order to deal with such a problem, Japanese Patent Application Laid-Open No. 2002-362326 proposes a wiper arm provided with a rotation regulating means for regulating the rotation of an arm member (retainer). In the wiper arm of this publication, by providing a stopper wall on the head cover covering the arm head, the stopper wall interferes with the arm member, and the rotation of the arm member is restricted within a predetermined angle. There is.

On the other hand, there is a structure in which an arm piece capable of holding the wiper blade is connected to the wiper blade via a clip member rotatably provided on the wiper blade.

Regarding this structure, as a connecting device for connecting the wiper blade to the wiper arm, for example, a clip member 1 is adopted as described in Utility Model Application Publication No. 61-183245.

As shown in FIG. 1, this clip member includes a frame portion 6 rotatably attached to a first pin 4 formed on a primary lever 2 of a wiper blade. The clip member also includes a hook mounting portion 8 integrally formed with the frame portion. The hook mounting portion 8 has a complementary support surface on the inner surface of the hook portion having a U-shaped cross section of the arm piece 10 of the wiper arm. The clip member 1 also includes a second pin 12 integrally formed with the frame portion at a distance from the first pin 4 with respect to the arm piece 10.

The clip member 1 further includes a detention member 14 rotatably supported by a second pin 12. The detention member 14 has a detention surface portion 18 substantially complementary to the outer curved surface portion of the U-shaped hook portion 16 of the arm piece 10. The detention surface portion 18 has elasticity and can be bent in a direction away from the outer curved surface portion of the arm piece 10 attached to the hook mounting portion 8. By rotating the detention member 14 to the outside of the primary lever 2 (see the alternate long and short dash line in FIG. 1), a attachment / detachment space that enables attachment / detachment of the U-shaped hook portion 16 of the arm piece 10 with respect to the hook attachment portion 8 is provided. It is formed. After the arm piece 10 is connected to the hook mounting portion 8, the detention member 14 rotated outward is returned to the hook mounting portion 8, and the detention member 14 prevents the arm piece 10 from moving into the attachment / detachment space. Acts as a retaining member.

JP-A-2002-362326 Utility model application published 1986-183245

However, when the clip member as described above is used, as shown in FIGS. 2 to 4, the retainer 20 is erected with respect to the arm head 22 and the blade rubber is separated from the windshield 26. In the back state (see FIG. 2), the rotation of the clip member 1 around the first pin 4 may cause the wiper blade 24 to rotate with respect to the wiper arm including the arm piece 10 and the retainer 20 (see FIG. 2). (See FIG. 3). When rotated in this way, the back side of the wiper blade 24 faces the windshield side. At this time, if the lockback is released and the wiper blade 24 is returned to the windshield side, the back surface of the wiper blade 24 comes into contact with the windshield 26 (see FIG. 4), and there is a problem that the windshield 26 may be damaged. there were.

In order to prevent this, it has been studied to provide the wiper blade with a rotation prevention mechanism in which the wiper blade restricts the rotation of the wiper arm to a predetermined value or more in the lockback state.

5 to 10 show an example of the structure of the clip member rotation prevention device that prevents the clip member from rotating in the lockback state.

FIG. 5 shows the lever assembly of the wiper blade. This lever assembly is composed of a primary lever 30, and a clip accommodating hole 34 for arranging a clip member 32 is formed substantially in the center of the primary lever 30. A first pin 36 extending in a direction intersecting the longitudinal direction of the primary lever 30 is provided in the clip accommodating hole 34 of the primary lever. The clip member 32 includes a frame portion 38, a hook mounting portion 40 integrally formed with the frame portion, and a detention member 42, similar to those shown in FIG. The frame portion 38 and the hook mounting portion 40 are rotatably attached to the first pin 36, whereby the clip member 32 can rotate around the first pin 36. An arm piece (not shown) is arranged on the hook mounting portion side of the clip member 32 so that the arm piece and the clip member are connected to each other. The pair of inner wall surfaces 44, 46 in the longitudinal direction forming the clip accommodating holes 34 of the primary lever 30 are provided with dowels 48, 50 so as to face each other on the proximal end side (retainer side), respectively. The frame portion 38 of the clip member 32 has a tapered tip portion, and the detention member 42 is rotatably connected to a second pin 53 formed at the tip portion thereof. A hook mounting portion 40 is formed integrally with the frame portion 38 on the opposite side of the tip portion of the frame portion 38, that is, on the rear end side of the frame portion.

A pair of grooves 52 and 54 are formed at the rear end of the hook mounting portion 40 of the clip member 32 as shown in FIG. Then, when the clip member 32 is arranged in the clip accommodating hole 34 of the primary lever 30, the dowels 48 and 50 are fitted into the pair of grooves 52 and 54 of the clip member 32. Then, the dowels 48 and 50 are slid along the grooves 52 and 54 of the clip member in accordance with the rotation of the clip member 32 about the first pin 36. When the clip member 32 is rotated to a predetermined position, the dowels 48, 50 abut on the end walls defining the grooves 52, 54 (see FIGS. 9 and 10) to prevent further rotation of the clip member. It has become like.

Usually, the wiper blades shown in FIGS. 5 to 10 have an asymmetric cross-sectional shape for a right-hand drive and a cross-sectional shape for a left-hand drive. That is, the wiper blade for the right-hand drive and the wiper blade for the left-hand drive have a left-right asymmetric cross-sectional shape.

Further, when the structure in which the dowel is formed in the clip accommodating hole of the primary lever is used for the wiper blade for the right handle, the dowel is the proximal end side (retainer) of the pair of inner wall surfaces forming the clip accommodating hole of the primary lever. The one formed on the side) is used. On the other hand, when used for a wiper blade for a left handle, a dowel formed on the tip side (opposite side to the retainer side) of a pair of inner wall surfaces forming a clip accommodating hole for the primary lever is used. In this way, the position of the dowel changes between the wiper blade for the right-hand drive and the wiper blade for the left-hand drive, and an asymmetric wiper blade is manufactured. Manufacturing asymmetric wiper blades in this way leads to increased costs. Therefore, it is preferable to share the wiper blade for the right-hand drive and the wiper blade for the left-hand drive to reduce the cost. In this regard, the wiper blades shown in FIGS. 11 to 18 are being studied.

FIG. 11 shows the wiper 56 for the left-hand drive, and FIG. 12 shows the wiper 58 for the right-hand drive. Both the left-hand drive wiper 56 shown in FIG. 11 and the right-hand drive wiper 58 shown in FIG. 12 include a primary lever 60 having the same structure as shown in FIGS. 13-18. There is.

The primary lever 60 is formed with a clip accommodating hole 64 for accommodating the clip member 62. A first pin 66 is provided in the clip accommodating hole, and the clip member 62 is rotatably attached to the first pin 66.

The clip accommodating hole 64 includes a first opening 68 on one side and a second opening 70 on the other side, centered on the first pin 66, with respect to the longitudinal direction of the primary lever 60. ing. The first opening 68 and the second opening 70 have the same shape. That is, the first opening 68 and the second opening 70 are symmetrical with respect to the first pin 66. Further, not only the first opening 68 and the second opening 70, but also the structure of the primary lever 60 is symmetrical with the first pin 66 in between (see FIGS. 13 and 14).
The clip member 62 includes a hook mounting portion 72 and a detention member 74. Then, by positioning the detention member 74 in the first opening 68 and the hook mounting portion 72 in the second opening 70, the clip member 62 is arranged in the clip accommodating hole 64, and the wiper blade for the left handle is provided. It is configured (see FIGS. 15 and 16). At this time, the wiper arm 76 is arranged so as to extend from the second opening 70 side toward the hook mounting portion 72 (see FIG. 11).

On the other hand, by positioning the detention member 74 in the second opening 70 and the hook mounting portion 72 in the first opening 68, the clip member 62 is arranged in the clip accommodating hole 64 in the opposite direction to the above, and the right side. A wiper blade for the handle is configured (see FIGS. 17 and 18). At this time, the wiper arm is arranged so as to extend from the first opening 68 side toward the hook mounting portion 72 (see FIG. 12).

It is preferable to form a dowel in the clip accommodating hole of the primary lever having such a symmetrical structure to form a rotation prevention mechanism of the clip member. Further, even in this case, it is preferable to share the wiper blade for the right-hand drive and the wiper blade for the left-hand drive to reduce the cost. In this regard, by configuring the clip accommodating holes of the primary lever symmetrically before and after the first pin, that is, the base end side (retainer side) of the pair of inner wall surfaces forming the clip accommodating holes of the primary lever. ), And also by forming a dowel on the tip side of the dowel, it is possible to share the dowel.

Specifically, it will be described with reference to FIGS. 19 to 22.

The primary lever 60 shown in FIGS. 19 to 22 is similar to the primary lever shown in FIGS. 13 to 18 except that a dowel is provided in the clip accommodating hole as a rotation prevention mechanism of the clip member.

When the wiper blade has a symmetrical shape in the front-rear direction and the wiper blade for the right handle and the wiper blade for the left handle are shared, as described above and as shown in FIGS. 19 to 22. The first opening 68 and the second opening 70 of the clip accommodating hole 64 in which the clip member 62 is arranged have a symmetrical shape. A pair of dowels 80 and 82 projecting toward the substantially center of the first opening 68 are formed on the inner wall portions 83 and 85 in the longitudinal direction defining the first opening 68. Further, a pair of dowels 84 and 86 are similarly formed in the second opening 70. Then, by rearranging the directions of the clip members in the opposite directions, it is possible to handle the right-hand drive and the left-hand drive.

However, if the primary lever of the wiper blade is symmetrical in the front-rear direction and dowels are provided in each of the first opening 68 and the second opening 70 of the clip accommodating hole, for example, the dowel provided in the first opening is provided. 80 and 82 are caught on the lower surface of the frame portion that supports the retaining member 74 of the clip member 62, which causes an obstacle in assembling the clip member 62 to the clip accommodating hole 64 (see FIG. 21). Further, even when the clip member 62 is assembled into the clip accommodating hole 64, the dowels 80 and 82 provided in the first opening 68 are caught on the side surface of the frame portion 88 supporting the retaining member 74 of the clip member. , The problem of hindering the rotation of the clip member arises (see FIG. 22). Even if the clip member 62 is arranged in the clip accommodating hole 64 in the opposite direction, there is a problem that the rotation of the clip member is similarly hindered.

The present invention has been made in view of the above problems, and provides an anti-rotation mechanism for a wiper blade that can be shared between a right-hand drive and a left-hand drive.

The present invention has been made in view of the above problems.
It ’s a wiper blade,
The wiper blade includes a blade rubber assembly that is pressed against the wiped surface to wipe the wiped surface, and a lever member for supporting the blade rubber assembly.
The lever member is provided with a clip accommodating hole for rotatably accommodating the clip member connected to the U-shaped hook portion of the arm piece.
From the lever member, the lever member closes at least a part of the clip accommodating hole to restrict rotation of the clip member in one direction or more and rotation of the clip member in the other direction of a predetermined time or more. Provided is a wiper blade provided with a rotation control device extending in the clip accommodating hole.

According to the present invention, since the rotation regulating device extending from the lever member into the clip accommodating hole is provided, the rotation prevention mechanism of the wiper blade that can be shared for the right handle and the left handle is provided. Can be provided.

FIG. 1 is a cross-sectional view showing a conventional technique. FIG. 2 is a perspective view showing a lockback state. FIG. 3 is a perspective view showing a state in which the wiper blade is rotated in the lockback state. FIG. 4 is a perspective view showing a state in which the back surface of the wiper blade is in contact with the windshield. FIG. 5 is an enlarged perspective view of a portion of the wiper blade near the center of the primary lever. FIG. 6 is a cross-sectional view of the primary lever broken along the line AA of FIG. FIG. 7 is a perspective view of the clip member. FIG. 8 is a cross-sectional view of the clip member broken along the line BB of FIG. FIG. 9 is a partial cross-sectional view of the primary lever which is broken along the longitudinal direction of the primary lever in a state where the clip member is attached to the primary lever. FIG. 10 is a cross-sectional view of the primary lever in a state where the clip member broken along the line CC of FIG. 9 is attached. FIG. 11 is a perspective view of the wiper for the left steering wheel. FIG. 12 is a perspective view of a wiper for a right-hand drive. FIG. 13 is a partial top view near the center of the primary lever shared for the right-hand drive and the left-hand drive. FIG. 14 is a partial cross-sectional view of the primary lever broken along the DD line of FIG. FIG. 15 shows the vicinity of the center of the primary lever in a state where the clip member is mounted in the clip accommodating hole of the primary lever with the second pin side of the clip member facing one side with respect to the longitudinal direction of the primary lever. It is a partial top view. FIG. 16 is a partial cross-sectional view of the primary lever broken along the line EE of FIG. FIG. 17 shows the vicinity of the center of the primary lever in a state where the clip member is mounted in the clip accommodating hole of the primary lever with the second pin side of the clip member facing the other side with respect to the longitudinal direction of the primary lever. It is a partial top view. FIG. 18 is a partial cross-sectional view of the primary lever broken along the line FF of FIG. FIG. 19 shows a primary lever shared for the right-hand drive and the left-hand drive, and further, a pair of dowels for preventing rotation of the clip member are provided at both ends of the clip accommodating hole near the center of the primary lever. It is a partial top view. FIG. 20 is a partial cross-sectional view of the primary lever broken along the line GG of FIG. FIG. 21 is a partial cross-sectional view of the primary lever when the clip member is attached to the primary lever shown in FIGS. 19 and 20. FIG. 22 is also a partial cross-sectional view of the primary lever when the clip member is attached to the primary lever shown in FIGS. 19 and 20. FIG. 23 is a partial top view of the primary lever according to the embodiment of the present invention near the center. FIG. 24 is a partial cross-sectional view of the primary lever broken along the line HH of FIG. 23. FIG. 25 is a partial cross-sectional view of the primary lever showing a state in which the clip member is attached to the primary lever shown in FIGS. 23 and 24 toward one side and the rotation of the clip member is restricted. FIG. 26 is a partial cross-sectional view of the primary lever showing a state in which the clip member is similarly attached to the primary lever shown in FIGS. 23 and 24 toward the other side and the rotation of the clip member is restricted. Is.

Hereinafter, an example in which the blade rubber assembly according to the embodiment of the present invention is applied to the wiper blade will be described with reference to FIGS. 23 to 26.

The wiper blade includes a blade rubber assembly (not shown) for wiping the wiped surface (for example, the windshield of an automobile) and a lever for attaching the blade rubber assembly to the wiper arm (not shown) so as to be able to hold the wiper rubber assembly. It has an assembly.

The lever assembly according to the present embodiment includes a primary lever 100 as a lever member and a clip member 200 as a connecting device for connecting the primary lever 100 to an arm piece (not shown) of the wiper arm. .. The primary lever 100 is preferably made of a material for a cover member.

The primary lever 100 has a symmetrical structure on one side and the other side from the central portion thereof in the longitudinal direction. On the other hand, the primary lever 100 is asymmetrical on one side and the other side in a direction intersecting the longitudinal direction thereof. Regarding this point, for example, as shown in FIG. 23, the shape is asymmetrical between one side (upper side in the figure) and the other side (lower side in the figure) across the HH line. It has become. This means that no matter which direction the clip member is placed in the clip accommodating hole, when the primary lever is attached to the car, one side (upper side in the figure) of the primary lever is always up (car roof). This is because it needs to be arranged so that it is on the side) and the other side (lower side in the figure) of the primary lever is on the lower side (bonnet side of the car).

The primary lever 100 is provided with a clip accommodating hole 102 in the central portion thereof for rotatably accommodating the clip member 200 connected to the U-shaped hook portion (see FIG. 1) of the arm piece. The clip accommodating hole 102 extends along the longitudinal direction of the primary lever and penetrates the primary lever in a direction intersecting in the longitudinal direction (for example, the vertical direction in FIG. 24).

The clip accommodating hole 102 includes a first opening 103 and a second opening 105 with a first pin 104 provided in the clip accommodating hole 102 interposed therebetween. The first opening 103 and the second opening 105 are symmetrical with respect to the first pin 104.

As shown in FIGS. 25 and 26, the clip member 200 includes a frame portion 202 rotatably attached to a first pin 104 formed on the primary lever 100. The clip member 200 also includes a hook mounting portion 204 integrally formed with the frame portion 202. The hook mounting portion 204 has a complementary support surface 206 on the inner surface of the hook portion having a U-shaped cross section of the arm piece of the wiper arm. The clip member 200 also includes a second pin 207 integrally formed with the frame portion 202 at a distance from the first pin 104 in the direction of separation from the arm piece. The clip member 200 further includes a detention member 208 that is rotatably supported by a second pin 207.

The detention member 208 has a detention surface portion 210 substantially complementary to the outer curved surface portion of the hook portion of the wiper arm. The detention surface portion 210 has elasticity and can bend in a direction away from the outer curved surface portion of the wiper arm attached to the hook mounting portion 204. By rotating the detention member 208 to the outside of the primary lever (see FIG. 1), a attachment / detachment space is formed that allows the U-shaped hook portion of the arm piece to be attached / detached to / from the hook attachment portion 204. After the arm piece is connected to the hook mounting portion 204, the detention member 208 rotated outward is returned to the hook mounting portion side, and the detention member 208 prevents the wiper arm from moving into the attachment / detachment space. Acts as a member.

From the primary lever 100, the primary lever 100 closes at least a part of the clip accommodating hole 102 and regulates the rotation of the clip member 200 in one direction or more and the rotation of the clip member 200 in the other direction. A rotation control device 300 extending in the clip accommodating hole 102 is provided. The rotation regulating device 300 is provided on the facing portion 106 of the primary lever 100 facing the blade rubber assembly. More specifically, the facing portion 106 is a blade rubber adjacent portion 106 of the primary lever adjacent to the blade rubber assembly. The portion adjacent to the blade rubber is the bottom of the primary lever.

The rotation control device 300 includes a first receiving portion 302 and a second receiving portion 304. The first receiving portion 302 and the second receiving portion 304 extend from the blade rubber adjacent portion 106 of the primary lever 100 into the clip accommodating hole 102 substantially parallel to the blade rubber adjacent portion of the primary lever, respectively. There is.

The primary lever 100 includes a long lever body 108 provided on the opposite side of the blade rubber adjacent portion of the primary lever, and a first lever body 108 extending from one end of the lever body 108 to the blade rubber assembly side. The side wall portion 110 and the second side wall portion 112 extending from the other end side of the lever body 108 to the blade rubber assembly side are provided.

The clip accommodating hole 102 includes a first inner wall portion 114 formed inside the first side wall portion 110, a second inner wall portion 116 formed inside the second side wall portion 112, and a first inner wall portion. A third inner wall portion 118 extending in a direction intersecting the longitudinal direction of the lever body and a first inner wall portion 114 connecting one end portion of the portion 114 and one end portion of the second inner wall portion 116. Is defined by a fourth inner wall portion 120 extending in a direction intersecting the longitudinal direction of the lever body, which connects the other end portion of the second inner wall portion 116. The first inner wall portion 114 and the second inner wall portion 116 are arranged so as to face each other. Further, the third inner wall portion 118 and the fourth inner wall portion 120 are also arranged so as to face each other.

The clip accommodating hole 102 is a blade defined by an end on the blade rubber side of each of the first inner wall portion 114, the second inner wall portion 116, the third inner wall portion 118, and the fourth inner wall portion 120. It has a rubber-side opening 107.

The rotation control device 300 extends toward the blade rubber side opening 107, whereby at least a part of the blade rubber side opening is closed. More specifically, the rotation regulating device 300 includes a first receiving portion 302 and a first receiving portion 302 projecting from the end portion of the third inner wall portion 118 on the blade rubber side to the blade rubber side opening 107 of the clip accommodating hole. A second receiving portion 304 projecting from the end portion of the inner wall portion 120 of No. 4 on the blade rubber side to the blade rubber side opening 107 of the clip accommodating hole is provided. The first receiving portion and the second receiving portion each extend along the longitudinal direction of the primary lever and have a thin plate shape.

As described above, the clip accommodating hole 102 is provided with a first pin 104 extending in a direction intersecting the longitudinal direction of the primary lever 100 so as to be substantially near the center thereof in the longitudinal direction. .. That is, the first pin 104 extends between the first inner wall portion 114 and the second inner wall portion 116. Then, as described above, the clip accommodating hole 102 includes the first opening 103 and the second opening 105 with the first pin sandwiched in the longitudinal direction thereof, and these two openings are provided. Has a symmetrical structure with the first pin 104 in between.

The first receiving portion 302 includes a first base end portion 306 integrally joined to an end portion on the blade rubber side of the third inner wall portion 118, and a first tip extending into the opening on the blade rubber side. A first one-end portion 310 extending between the portion 308, the first tip portion 308 and the first base end portion 306, and integrally joined with the first inner wall portion 114, and a first It is provided with a first other end portion 312 extending between the tip portion 308 and the first base end portion 306 and integrally joined with the second inner wall portion 116. The first receiving portion 302 is formed in a rectangular shape from the first base end portion 306, the first tip end portion 308, the first one end portion 310, and the first other end portion 312.

The second receiving portion 304 includes a second base end portion 314 integrally joined to the end portion on the blade rubber side of the fourth inner wall portion 120, and a second tip extending into the opening on the blade rubber side. A second one end portion 318 extending between the portion 316 and the second tip portion 316 and the second base end portion 314 and integrally joined with the first inner wall portion 114, and a second It is provided with a second other end portion 320 extending between the tip portion 316 and the second base end portion 314 and integrally joined with the second inner wall portion 116. The second receiving portion 304 is also formed from the second base end portion 314, the second tip portion 316, the second one end portion 318, and the second other end portion 320, similarly to the first receiving portion 302. It is formed in a rectangular shape. In this way, the first tip portion 308 of the first receiving portion 302 and the second tip portion 316 of the second receiving portion 304 are arranged so as to face each other via the blade rubber side opening. .. In other words, the blade rubber side opening 107 is partially formed between the first tip portion 308 of the first receiving portion 302 and the second tip portion 316 of the second receiving portion 304. ..

Although the first receiving portion 302 and the second receiving portion 304 are formed in a rectangular shape in the present embodiment, the first receiving portion 302 and the second receiving portion 304 are not necessarily formed in a rectangular shape, and may be formed in an arc shape. As shown in FIG. 23, it is preferable that the first receiving portion and the second receiving portion are each formed in the same shape.

The first receiving portion 302 is formed with first communication holes 330 and 332 that communicate between the clip accommodating hole 102 and the outside of the primary lever 100. The second receiving portion 304 is formed with a second communication hole 334, 336 that communicates between the clip accommodating hole 102 and the outside of the primary lever 100. By forming communication holes in each of the first receiving portion and the second receiving portion in this way, it is possible to smoothly drain the water in the clip accommodating hole even when it rains or the like. .. Further, the weight of the primary lever can be reduced by forming the communication hole. However, even if the clip member is arranged in the clip accommodating hole, a gap is formed between the clip accommodating hole and the clip member, and water can be drained through the gap. It is not always necessary to form a communication hole in each of the receiving portions of the above.

The first communication hole is formed of a plurality of, specifically a pair of through holes 330, 320. The front second communication hole is also formed from a plurality of, specifically a pair of through holes 334, 336. In the present embodiment, the first communication hole and the second communication hole are each composed of two through holes. By forming the plurality of through holes in this way, it is possible to more smoothly drain the water in the clip accommodating holes even when it rains or the like. Each pair of through holes are arranged side by side in a direction intersecting the longitudinal direction of the primary lever 100. The pair of through holes may be arranged along the longitudinal direction of the primary lever 100, respectively.

In the present embodiment, as shown in FIG. 25, when the clip member 200 is arranged in the clip accommodating hole 102 so that the detention member 208 side of the clip member 200 is arranged on the first opening 103 side (in this case). , The primary lever is for the left handle), even if the clip member 200 rotates about the first pin 104 in the locked back state, the retaining member 208 of the clip member comes into contact with the first receiving portion 302. The rotation will be regulated.

On the other hand, as shown in FIG. 26, when the clip member 200 is arranged in the clip accommodating hole 102 so that the detention member 208 side of the clip member 200 is arranged on the second opening 105 side (in this case, the primary lever is Even if the clip member 200 rotates about the first pin 104 in the lockback state (for the right handle), the detention member 208 of the clip member 200 comes into contact with the second receiving portion 304 and the rotation occurs. It will be regulated.

In this way, according to the present embodiment, in the primary lever provided with the rotation regulating device, a predetermined rotation of the clip member during operation of the wiper can be allowed according to a change in the radius of curvature of the windshield, and at the same time. It is possible to prevent the clip member from rotating more than necessary in the locked back state.

Further, in the primary lever provided with the rotation regulation device, the primary lever can be shared with the right-hand drive and the left-hand drive. Further, since the first receiving portion and the second receiving portion are provided on the lower end side of the clip accommodating hole, it is not necessary to provide a dowel on the inner side wall forming the clip accommodating hole, and the clip member can be assembled to the clip accommodating hole. There is no hindrance to the rotation of the clip member.

Although only some embodiments of the present invention have been described above, it is possible to make various changes or improvements to the illustrated embodiments without substantially deviating from the novel teachings and advantages of the present invention. Will be easily understood by those skilled in the art. Therefore, it is intended that such modified or improved forms are also included in the technical scope of the present invention.
The above embodiments may be combined arbitrarily.

1 ... Clip member 2 ... Primary lever 4 ... First pin 6 ... Frame part 8 ... Hook mounting part 10 ... Armpiece 12 ... Second pin 14 ... Detention member 16 ... Hook part 18 ... Detention surface part 20 ... Retainer 22 ... Arm head 24 ... Wiper blade 26 ... Windshield 30 ... Primary lever 32 ... Clip member 34 ... Clip accommodating hole 36 ... First pin 38 ... Frame part 40 ... Hook mounting part 42 ... Detention member 44 ... Inner wall surface 48 ... Dove 52 ... Groove 53 ... Second pin 56 ... Wiper 58 ... Wiper 60 ... Primary lever 62 ... Clip member 64 ... Clip accommodating hole 66 ... First pin 68 ... First opening 70 ... Second opening 72 ... Hook mounting part 74 ... Detention member 76 ... Wiper arm 80 ... Dubbo 82 ... Dubbo 83 ... Inner wall part 84 ... Dubbo 85 ... Inner wall part 86 ... Dubbo 88 ... Frame part 100 ... Primary lever 102 ... Clip accommodating hole 103 ... First opening Part 104 ... First pin 105 ... Second opening 106 ... Blade rubber adjacent part (opposing part)
107 ... Blade rubber side opening 108 ... Lever body 110 ... First side wall 112 ... Second side wall 114 ... First inner wall 116 ... Second inner wall 118 ... Third inner wall 120 ... Fourth Inner wall part 200 ... Clip member 202 ... Frame part 204 ... Hook mounting part 206 ... Support surface 207 ... Second pin 208 ... Detention member 210 ... Detention surface part 300 ... Rotation control device 302 ... First receiving part 304 ... First 2 receiving portion 306 ... 1st base end portion 308 ... 1st tip portion 310 ... 1st one end portion 312 ... 1st other end portion 314 ... 2nd base end portion 316 ... 2nd tip portion 318 ... Second one end 320 ... Second other end 330 ... First communication hole 332 ... First communication hole 334 ... Second communication hole 336 ... Second communication hole

Claims (11)

It ’s a wiper blade,
The wiper blade includes a blade rubber assembly that is pressed against the wiped surface to wipe the wiped surface, and a lever member for supporting the blade rubber assembly.
The lever member is provided with a clip accommodating hole for rotatably accommodating the clip member connected to the U-shaped hook portion of the arm piece.
From the lever member, the lever member closes at least a part of the clip accommodating hole to restrict rotation of the clip member in one direction or more and rotation of the clip member in the other direction of a predetermined time or more. A wiper blade provided with a rotation control device extending in the clip accommodating hole. In the wiper blade according to claim 1,
The wiper blade is characterized in that the rotation regulating device is provided on a portion of the lever member facing the blade rubber assembly. In the wiper blade according to claim 2,
A wiper blade having a portion of the lever member facing the blade rubber assembly is a surface adjacent to the blade rubber of the lever member adjacent to the blade rubber assembly. In the wiper blade according to claim 3,
A wiper blade characterized in that the blade rubber adjacent surface of the lever member is the bottom surface of the lever member. In the wiper blade according to claim 3,
The rotation regulating device is a wiper blade that extends from the blade rubber adjacent surface of the lever member into the clip accommodating hole substantially parallel to the blade rubber adjacent surface of the lever member. In the wiper blade according to claim 5,
The lever member includes a long lever body, a first side wall extending from one end of the lever body to the blade rubber assembly side, and a blade from the other end of the lever body. It has a second side wall that extends to the rubber assembly side.
The clip accommodating hole is
The first inner wall portion formed inside the first side wall portion and
A second inner wall portion formed inside the second side wall portion and
A third inner wall portion extending in a direction intersecting the longitudinal direction of the lever body, which connects one end portion of the first inner wall portion and one end portion of the second inner wall portion.
By the fourth inner wall portion extending in a direction intersecting the longitudinal direction of the lever body, which connects the other end portion of the first inner wall portion and the other end portion of the second inner wall portion. It is composed and
The clip accommodating hole is a blade rubber side opening formed by the blade rubber side end of the first inner wall portion, the second inner wall portion, the third inner wall portion, and the fourth inner wall portion. Have and
A wiper blade characterized in that the rotation restricting device extends toward the blade rubber side opening, thereby closing at least a part of the blade rubber side opening. In the wiper blade according to claim 6,
The rotation control device is
A first receiving portion of the third inner wall portion that projects from the end portion on the blade rubber side to the opening on the blade rubber side of the clip accommodating hole.
A wiper blade comprising a second receiving portion that projects from an end portion of the fourth inner wall portion on the blade rubber side to the opening on the blade rubber side of the clip accommodating hole. In the wiper blade according to claim 7,
A wiper blade characterized in that the blade rubber-side opening of the clip accommodating hole is partially formed between the first receiving portion and the second receiving portion. In the wiper blade according to claim 8,
The first receiving portion is formed with a first communication hole that communicates between the clip accommodating hole and the outside of the lever member.
The wiper blade is characterized in that the second receiving portion is formed with a second communication hole that communicates between the clip accommodating hole and the outside of the lever member. In the wiper blade according to claim 9,
The first communication hole is formed of a plurality of through holes.
The wiper blade, wherein the second communication hole is also formed from a plurality of through holes. The wiper blade according to any one of claims 1 to 10.
The wiper blade is characterized in that the primary lever is made of a material for a cover member.

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