JP2005153701A - Wiper blade coupling member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiper blade coupling member with a wiper arm, capable of reducing the number of components and assuring less rattling of the coupling member and the wiper arm. <P>SOLUTION: The coupling member 10 is to couple the body 1 of the wiper blade with the wiper arm 107 and is equipped with a coupling member body 14 to be mounted on the wiper blade body 1 and a locking member 16 to be mounted rotatably on the coupling member body 14, wherein the coupling member body 14 has a mounting shaft 22, and the wiper arm 107 is mounted directly on the shaft 22 and is engaged by the locking member 16 mounted on the coupling member body 14 in such a way as prevented from slipping off and capable of rotating. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a connecting member that connects a wiper blade and a wiper arm in a wiper device.

  The wiper device includes a wiper blade main body having a wiper rubber for wiping the wiping surface, a wiper arm supporting the wiper blade main body, and a wiper motor connected to the wiper arm via a wiper link. The wiper blade body has a vertebra and a blade rubber, and wipes rain or dust on a wiping surface such as a glass surface by reciprocating motion. The wiper blade main body and the wiper arm are connected by a connecting member, and the wiper arm presses the wiper blade against the glass surface to reciprocate.

  FIG. 9 shows an example of a conventional product of such a connecting member. The connecting member 100 is attached to a wiper blade body including a vertebra and a blade rubber (not shown), and connects the wiper blade body and the wiper arm 12. As shown in the figure, the connecting member 100 includes a locking member 103, a connecting member main body 105, and a connecting member main body case 109.

  As shown in FIG. 10, a substantially cylindrical mounting shaft 125 is disposed in the center in the longitudinal direction of the connecting member main body case 109, and spans between both side surfaces of the connecting member main body case 109.

  The connecting member main body 105 is rotatably fixed to the connecting member main body case 109, and has a fitting cylinder portion 119 that fits into the attachment shaft 125 as shown in FIG. A pair of substantially cylindrical protrusions 117 are disposed at one end in the longitudinal direction of the connecting member main body 105 and face the inner side surface of the connecting member main body 105. Further, the connecting member main body 105 has an engaging surface 120 on the side opposite to the protruding portion of the fitting cylinder portion 119. As shown in FIG. 12, the wiper arm 107 is fitted to the connecting member main body 105, and has a flat portion 129 that fits to the engaging surface 120 and an engaging portion 127 that fits to the engaging portion 118. . As shown in FIG. 13, the locking member 103 fits the wiper arm 107 to the connecting member main body 105, and includes an elastic portion 115 fitted to the outer periphery of the engaging portion 127 of the wiper arm 107, and the connecting member main body 105. And a fitting tube portion 113 that fits into the projection 117.

  When the wiper arm 107 is attached to the connecting member, the fitting tube portion 113 of the locking member 103 is fitted to the protrusion 117 of the connecting member main body 105 and the locking member 103 is attached to the connecting member main body 105. Next, the engaging portion 127 of the wiper arm 107 is engaged with the engaging portion 118 of the connecting member main body 105, and the flat portion 129 is engaged with the engaging surface 120, and the elastic portion 115 of the locking member 103 is engaged with the wiper arm 107. Are engaged with the outer periphery of the engaging portion 127. As a result, the wiper arm 107 is integrally attached to the connecting member main body 105. The integral member shown in FIG. 14 can be rotated to the connecting member main body case 109 by fitting the fitting cylindrical portion 119 of the connecting member main body 105 to the outer periphery of the attachment shaft 125 of the connecting member main body case 109. Mounting. Thereby, the wiper blade main body and the wiper arm 107 can be rotatably connected via the connecting member 100.

  As shown in FIG. 15, when wiping the surface to be wiped with blade rubber, the wiper arm 107 can perform a rotational motion so that the blade rubber follows the curve of the surface to be wiped.

Japanese Patent Application No. 2002-114763 Japanese Patent Application 2003-270289

  As described above, the conventional connecting member has a double structure in which the wiper arm 107 is fixed by the connecting member main body 105 and the locking member 103 and is rotatably mounted on the connecting member main body case 109. Therefore, the number of parts and assembly man-hours have been increased.

  Further, since the wiper arm 107 and the connecting member main body 103 and the connecting member main body 105 and the connecting member main body case 109 are in contact with each other, the contact area is increased. Therefore, when the wiper is operated, the contact area is large, and there is a problem that the play of the connecting member 100 and the wiper arm 107 becomes large.

  The present invention has been made paying attention to such problems, and in the connecting member for a wiper blade for connecting the wiper blade and the wiper arm, the number of parts is reduced and the backlash of the connecting member and the wiper arm is small. It aims at providing a connection member.

  In order to achieve the above object, a connecting member for connecting a wiper blade main body and a wiper arm according to the present invention includes a connecting member main body mounted on the wiper blade main body, and a connection member rotatably mounted on the connecting member main body. A stop member, the connecting member main body has a mounting shaft, the wiper arm is directly mounted on the mounting shaft, and the wiper arm cannot be detached with the locking member mounted on the connecting member main body. It is locked so that it can rotate.

The locking member may have an engaging portion made of an elastic member, and the engaging portion may lock the wiper arm by its elasticity.
The engaging portion of the locking member has an engaging surface for locking the wiper arm attached to the attachment shaft of the connecting member main body, and the engaging surface has an arcuate cross section. The wiper arm may be rotatably locked.

  The wiper arm has a U-shaped portion attached to the mounting shaft, and the mounting shaft is a cylindrical member having substantially the same diameter as an arc of the inner periphery of the U-shaped portion. Good.

  The wiper arm has a U-shaped portion attached to the mounting shaft, and the locking member has an arc of the engaging surface having substantially the same diameter as an arc of the outer periphery of the U-shaped portion of the wiper arm. You may do it.

  According to the present invention, the connecting member has the wiper arm directly attached to the mounting shaft (for example, the mounting shaft 22) of the connecting member main body, and is locked by the locking member (for example, the locking member 16) so that it cannot fall off and can be rotated. Is done. Therefore, according to the connecting member of the present invention, the connecting member main body (for example, the connecting member main body 14) and the locking member (for example, the locking member 16) are constituted by two members, so that the number of parts and the number of assembly steps can be reduced. The effect that can be produced.

  Further, since the number of parts is reduced in the contact between the members, the fitting portion (for example, the fitting cylinder portion 26) of the locking member (for example, the locking member 16) and the fitting portion of the connecting member main body (for example, the connecting member 14). (For example, the protrusion 24), the attachment shaft (for example, the attachment shaft 22) of the connecting member main body (for example, the connecting member main body 14) and the engaging portion (for example, the engaging portion 127) of the wiper arm, and the locking member (for example, the locking). Only the outer periphery of the engaging surface (for example, engaging surface 28) of the member 16) and the engaging portion (for example, engaging portion 127) of the wiper arm is provided. Therefore, according to the connecting member of the present invention, it is possible to achieve an effect that the contact area is small and the backlash of the connecting member and the warper arm is reduced.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows a wiper blade 1 and a wiper arm 107 that are connected via a connecting member 10 according to an embodiment of the present invention.

  The wiper blade 1, the wiper arm 107, and a drive motor (not shown) together constitute a part of the wiper device. The wiper blade 1 includes a blade rubber 5 for wiping the surface to be wiped, and plate members 3 mounted on both sides of the blade rubber 5, and the connecting member 10 includes a protrusion 7 having a cut. The plate member 3 has a notch to which the protruding portion 7 is attached, and the coupling member 10 is fixed to the plate member 3 and attached to the wiper blade 1 by fitting the notch to the edge of the notch. The The connecting member 10 includes a connecting member main body 14 and a locking member 16, and locks the wiper arm 107 rotatably. Therefore, the wiper blade 1 is attached to the wiper arm 107 via the connecting member 10, operates on the surface to be wiped such as a glass surface of the vehicle by driving the wiper arm 12 by the drive motor, and is covered by the blade rubber 5. Wipe the wiping surface. The attachment of the connecting member 10 to the wiper blade 1 is an example, and the present invention is not limited to this. For example, you may attach to the tournament-type wiper blade which combined the some lever.

  FIG. 2 shows the connecting member 10 taken out. As illustrated, the connecting portion 10 includes a connecting member main body 14 and a locking member 16 that is rotatably attached to the connecting member main body 14.

  As shown in FIG. 3, the connecting member main body 14 has a U-shaped cross section, and has a structure for connecting to the wiper arm 107 therein. As an internal structure of the connecting member main body 14, a pair of substantially cylindrical protrusions 24 are arranged to face each other on the inner surface at one end in the longitudinal direction. A substantially cylindrical mounting shaft 22 is disposed on the inner side surface at the center in the longitudinal direction. The locking member 16 is attached to the protrusion 24, and the wiper arm 107 is attached to the attachment shaft 22.

  The wiper arm 107 is similar to the prior art and is shown in FIG. The wiper arm 107 includes a long shaft portion 129 and a U-shaped portion 123 at the tip of the long shaft portion 129. Further, the inner surface of the U-shaped portion 123 is an engagement surface 127.

  FIG. 4 shows the locking member 16. The locking member 16 includes a main body 27 having a flat upper surface 27 a, fitting cylinders 26 and elastic parts 30 at both longitudinal ends (front and rear ends) of the main body 27, and between the elastic part 28 and the main body 27. The elastic part 30 extends downward from the main body 27. The fitting cylinder part 26 has a substantially C-shaped cross section in which a part of the outer periphery of the locking member 16 is an open part. The fitting cylinder portion 26 is rotatably fitted to the protrusion of the connecting member main body 14 with the flat surface 27a facing away from the connecting member main body 14. The elastic part 30 has a substantially U-shaped cross section and is made of an elastic member. The elastic part 30 has an engagement surface 28 on the outer surface perpendicular to the longitudinal direction of the locking member 16. The engaging surface 28 has an arcuate cross section curved toward the inner side of the locking member 16 and fits with the outer surface of the engaging portion 127 of the wiper arm 107 to lock the wiper arm 107 rotatably. Let The handle portion 29 protrudes upward from the opening of the connecting member 10 in a state where the wiper arm 107 is locked, so that the locking member 16 can be easily detached from the fitted state with the wiper arm 107.

  In the locking member 16, the arc of the engagement surface 28 has substantially the same diameter as the arc of the outer periphery of the U-shaped portion 123 of the wiper arm 107. In the connecting member main body 14, the arc of the attachment shaft 22 has substantially the same diameter as the arc of the inner periphery of the U-shaped portion 123 of the wiper arm 107.

Hereinafter, the assembly and function of the connecting member 10 will be described with reference to FIGS.
FIG. 5 shows the connecting member 10 to which the wiper arm 107 is attached. The connecting member 10 is mounted on a wiper blade body 1 (not shown). First, the fitting cylinder portion 26 of the locking member 16 is rotatably fitted to the protrusion 24 of the connecting member main body 14. At this time, the flat surface 27 a of the locking member 16 is set to face the side opposite to the connecting member main body 14. The locking member 16 is rotated and held upward from a position substantially parallel to the connecting member main body 14, and the wiper arm 107 is attached to the outer periphery of the attachment shaft 22 of the connecting member main body 14 in this state. This mounting is performed so that the engaging portion 127 of the wiper arm 107 is engaged with the outer periphery of the attachment shaft 22.

  FIG. 6 shows the wiper arm 107 mounted on the connecting member 10 and rotatably locked by the locking member 16. When the locking member 16 is rotated from the state shown in FIG. 5 toward a position substantially parallel to the connecting member main body 14, the engaging surface 28 and the wiper of the locking member 16 are wiped by the elasticity of the elastic portion 30. The engaging portion 127 of the arm 107 is engaged. Both curves are concave and convex, and have substantially the same diameter. Therefore, the coupling between the engaging surface 28 of the locking member 16 and the engaging portion 127 of the wiper arm 107 cannot be removed due to the elasticity of the elastic portion 30 and is rotatably mounted.

  FIG. 7 shows the rotated wiper arm 107. When the wiping surface is wiped by the blade rubber 5, the warper arm 107 performs a rotational movement so that the blade rubber 5 follows the curve of the wiping surface. The base end side of the long shaft portion 129 of the wiper arm 107 is connected to a drive motor (not shown).

  FIG. 8 shows the movement of the wiper arm 107 in FIG. When wiping the surface to be wiped with the blade rubber 5, the wiper arm 107 can rotate so that the blade rubber 5 follows the curve of the surface to be wiped.

  As described above, in the connection member 10 according to the embodiment of the present invention, the wiper arm 107 is directly attached to the attachment shaft 22 of the connection member main body 14 and is locked by the locking member 16 so that it cannot be dropped off and can be rotated. Therefore, according to the connecting member 10 of the embodiment of the present invention, since the connecting member main body 14 and the locking member 16 are constituted by two members, the effect of reducing the number of parts and the number of assembling steps can be achieved.

  Further, since the number of parts is reduced in the contact between the members, the fitting cylindrical portion 26 of the locking member 16 and the protrusion 24 of the connecting member main body 14 and the attachment shaft 22 of the connecting member main body 14 and the wiper arm 107 are engaged. Only the outer periphery of the engaging portion 127 of the portion 127 and the engaging surface 28 of the locking member 16 and the wiper arm 107 are provided. Therefore, according to the connecting member 10 of the embodiment of the present invention, it is possible to obtain an effect that the contact area is small and the play of the connecting member 10 and the warper arm 107 is reduced.

  This embodiment can be applied not only to a wiper blade of an automobile, but also to other uses where it is necessary to wipe the surface to be wiped.

It is a perspective view which shows the wiper blade and wiper arm which are connected through the connection member of embodiment of this invention. Similarly, it is a perspective view showing a connecting member main body and a locking member mounted on the connecting member main body. Similarly, it is a perspective view which shows a connection member main body. Similarly, it is a perspective view which shows a locking member. Similarly, it is a perspective view showing a connecting member to which a wiper arm is attached. Similarly, it is a perspective view which shows the wiper arm with which the connection member was mounted | worn and rotatably locked by the locking member. Similarly, it is a perspective view which shows the wiper arm which rotated. Similarly, it is a perspective view showing a wiper blade and a wiper arm which are connected via a connecting member. It is a perspective view which shows an example of a connection member of a prior art. Similarly, it is a perspective view which shows a connection member main body case. Similarly, it is a perspective view which shows a connection member main body. Similarly, it is a perspective view which shows a wiper arm. Similarly, it is a perspective view which shows a locking member. Similarly, it is a perspective view showing a connecting member body to which a locking member is mounted and a wiper arm is fixed. Similarly, it is a perspective view which shows an example of a connection member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wiper blade main body 3 Plate member 5 Blade rubber 7 Protrusion part 10 Connection member 14 Connection member main body 16 Locking member 22 Mounting shaft 24 Protrusion part 26 Fitting cylinder part 27 Main body 27a Flat part 28 Engagement surface 29 Handle part 30 Elastic part DESCRIPTION OF SYMBOLS 100 Connection member 103 Locking member 105 Connection member main body 107 Wiper arm 109 Connection member main body case 113 Fitting cylinder part 115 Elastic part 117 Projection part 118 Engagement part 119 Fitting cylinder part 120 Engagement surface 123 U-shaped part 125 Attachment shaft 127 engaging part 129 plane part

Claims (5)

A connecting member for connecting the wiper blade body and the wiper arm,
A connecting member body mounted on the wiper blade body;
A locking member rotatably mounted on the connecting member body,
The connecting member main body has a mounting shaft, and the wiper arm is directly mounted on the mounting shaft, and the wiper arm is locked so as not to fall off and rotate with the locking member mounted on the connecting member main body. A connecting member characterized by that. The connecting member according to claim 1,
The locking member has an engaging portion made of an elastic member, and the engaging portion locks the wiper arm by its elasticity. In the connecting member according to any one of claims 1 to 2,
The engaging portion of the locking member has an engaging surface for locking the wiper arm attached to the attachment shaft of the connecting member main body, and the engaging surface has an arcuate cross section. The connecting member characterized in that the wiper arm is rotatably locked. In the connecting member according to any one of claims 1 to 3,
The wiper arm has a U-shaped portion attached to the mounting shaft,
The attachment member is a connecting member that is a cylindrical member having substantially the same diameter as an arc of the inner circumference of the U-shaped portion. In the connection member according to any one of claims 1 to 4,
The wiper arm has a U-shaped portion attached to the mounting shaft,
The connecting member according to claim 1, wherein the arc of the engaging surface has substantially the same diameter as the arc of the outer periphery of the U-shaped portion of the wiper arm.

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