JP6592153B1 - Wiper blade - Google Patents

Abstract

Provided is a wiper blade that prevents wiping water from splashing with a simpler structure and has a high drainage capacity. A wiper blade is attached to a wiper arm, and is configured to be rotatable with the rotation of the wiper arm. The wiper blade 1 includes a rubber support portion 2 and a blade rubber supported by the rubber support portion 2. In a state where the wiper blade 1 is mounted, the rubber support portion 2 and the blade rubber include an extending portion 21 extending linearly from the circumferentially inner end portion 2A toward the outer circumferential direction, And an extending portion 22 that is bent downward from the extending destination and extends linearly toward the outer end 2B in the circumferential direction. The angle between the extending portion 21 and the extending portion 22 is configured to be an obtuse angle. [Selection] Figure 3

Description

  The present invention relates to a wiper blade capable of reducing the scattering of wiping water due to the centrifugal force of the wiper.

  Conventionally, a wiper blade equipped in a vehicle has a problem that water droplets are scattered on the outer side in the circumferential direction of the wiping region due to centrifugal force during rotation.

  On the other hand, in Patent Document 1, a lip portion (15) having a lip portion main body (16) extending in a predetermined direction and a lip projecting portion (17) projecting laterally from the lip portion main body portion (16). ) Has been proposed (see FIG. 3 of Patent Document 1). In the wiper blade described in Patent Document 1, the presence of the lip protrusion (17) prevents water droplets such as rainwater from adhering to the wiping surface from scattering.

JP 2014-511127 A

  However, in the above-mentioned Patent Document 1, there is a problem that the lip protrusion (17) must be provided separately from the lip main body (16). Moreover, since the lip protrusion (17) is provided at a right angle or an acute angle with respect to the lip main body (16), a problem remains in the drainage capacity.

  Then, an object of this invention is to provide the wiper blade which prevents scattering of wiping water with a simpler structure, and has high drainage capacity.

In order to achieve the above object, the present invention provides a wiper blade attached to a wiper arm and configured to be rotatable in accordance with the rotation of the wiper arm, wherein the rubber support portion and the rubber support portion are attached to the wiper blade. A blade rubber to be supported, and in a state where the wiper blade is mounted, the rubber support portion and the blade rubber extend from the end on the inner side in the circumferential direction toward the outer side in the circumferential direction. And a second extension part that is bent downward from the extension destination of the first extension part and extends toward the outer circumferential end, and the first extension part and the second extension part angle obtuse der between is, the first extending portion and the second extending portion is molded of a flexible member, at the time of non-wearing the first extending portion and the second extending portion is arcuate When installed, chlorofluorocarbon The first extending portion and the second extending portion are pressed from a window and deformed from an arc shape to a substantially linear shape, and the second extending portion is the first extending portion as viewed from a direction orthogonal to the front window surface. There is provided a wiper blade that is bent downward .

  Moreover, it is preferable that the angle between the said 1st extending | stretching part and the said 2nd extending | stretching part is 155 degree | times.

  According to the present invention, in a state where the wiper blade is mounted, the rubber support portion and the blade rubber extend from the end on the inner side in the circumferential direction linearly toward the outer side in the circumferential direction, A second extending portion that is bent downward from the extending portion of the first extending portion and extends linearly toward the outer circumferential end. And the angle between a 1st extending | stretching part and a 2nd extending | stretching part is comprised so that it may become an obtuse angle. Therefore, it is possible to prevent the wiping water from scattering with a simpler structure and to have a high drainage capacity.

The figure which shows the front window of the vehicle containing the wiper blade by embodiment of this invention. The figure which shows the wiper blade by the side of a driver's seat. The III arrow line view of FIG. The figure which shows the wiper blade by the side of a passenger seat. The V arrow line view of FIG. The figure (a) which looked at the wiper blade which concerns on a modification from the direction parallel to a window surface, and the figure (b) which looked from the direction orthogonal to a window surface.

<1. Embodiment>
A wiper blade according to an embodiment of the present invention will be described with reference to FIGS. In the following, as shown in FIG. 1, two wiper blades 1 and 10 for wiping off water droplets adhering to a front window 91 of a vehicle are illustrated as an example of a wiper blade. The wiper blade 1 is installed on the wiper arm 8 on the driver's seat side of the vehicle, and the wiper blade 10 is installed on the wiper arm 80 on the passenger seat side of the vehicle.

  First, the wiper blade 1 installed on the driver's seat side of the vehicle will be described with reference to FIGS. 2 and 3.

  As shown in FIG. 2, the wiper blade 1 includes a rubber support portion 2 and a blade rubber 3 supported by the rubber support portion 2. The rubber support portion 2 includes a primary lever 4, two secondary levers 5 that are rotatably supported on both sides of the primary lever 4, and four that are rotatably supported on both sides of each secondary lever 5. The yoke lever 6 is configured.

  The primary lever 4 is connected to the wiper arm 8 (see FIG. 1) via a connecting clip at an arm connecting portion disposed at a substantially central portion thereof.

  Each yoke lever 6 has claw portions 7 at both ends. The blade rubber 3 is supported by the four yoke levers 6 at these claw portions 7.

  Both end portions of the primary lever 4 serve as outer connecting portions 4B, and these outer connecting portions 4B are connected to inner connecting portions at substantially central portions of the secondary levers 5.

  Similarly, both end portions of each secondary lever 5 serve as connecting portions 5B, and these connecting portions 5B are connected to a connecting portion at a substantially central portion of each yoke lever 6.

  As shown in FIG. 3, the rubber support portion 2 includes an extending portion 21 and an extending portion 22. The extending portion 21 is a portion that extends linearly from the end portion 2A on the inner side in the circumferential direction toward the outer side in the circumferential direction. The extending portion 22 is a portion that bends downward from the extending portion of the extending portion 21 and extends linearly toward the outer circumferential end 2B. In addition, the extending | stretching part 21 is an example of the 1st extending | stretching part which concerns on this invention, and the extending | stretching part 22 is an example of the 2nd extending | stretching part which concerns on this invention.

  In the present embodiment, the rubber support portion 2 is configured to bend at the end portion 41 on the outer side in the circumferential direction of the primary lever 4. Specifically, the rubber support portion 2 is bent so that the angle AG1 between the extending portion 21 and the extending portion 22 forms 155 degrees (obtuse angle). In other words, the extending portion 22 is bent 25 degrees downward with respect to the extending portion 21.

  In FIG. 3, for simplicity of explanation, the blade rubber 3 supported by the rubber support portion 2 is not shown, but the blade rubber 3 is also bent according to the bending of the rubber support portion 2. That is, the blade rubber 3 is also configured to include a portion corresponding to the extending portion 21 and a portion corresponding to the extending portion 22.

  Next, the wiper blade 10 installed on the passenger seat side of the vehicle will be described with reference to FIGS. 4 and 5.

  The wiper blade 10 on the passenger seat side is configured to be shorter than the wiper blade 1 on the driver seat side in the longitudinal direction.

  Further, the rubber support portion 2 of the wiper blade 1 described above has three stages of the primary lever 4, the secondary lever 5, and the yoke lever 6, but as shown in FIG. 4, the rubber support portion of the wiper blade 10 is provided. Reference numeral 20 denotes a two-stage structure including a main lever 40 and two yoke levers 60 that are rotatably supported on both sides of the main lever 40.

  The main lever 40 is coupled to the wiper arm 80 (see FIG. 1) via a coupling clip at an arm coupling portion disposed at a substantially central portion thereof.

  Each yoke lever 60 includes claw portions 70 at both ends. The blade rubber 30 is supported by the two yoke levers 60 at these claw portions 70.

  As shown in FIG. 5, the rubber support portion 20 includes an extending portion 210 and an extending portion 220. The extending portion 210 is a portion that extends linearly from the end portion 20A on the inner side in the circumferential direction toward the outer side in the circumferential direction. The extending portion 220 is a portion that bends downward from the extending portion of the extending portion 210 and extends linearly toward the outer circumferential end portion 20B.

  In the present embodiment, the rubber support portion 20 is configured to bend in the middle from the substantially central portion of the main lever 40 toward the circumferentially outer end portion 420. Specifically, the rubber support portion 20 is bent so that an angle AG2 between the extending portion 210 and the extending portion 220 forms 155 degrees (obtuse angle). In other words, the extending portion 220 is bent 25 degrees downward with respect to the extending portion 210.

  In FIG. 5, illustration of the blade rubber 30 supported by the rubber support portion 20 is omitted for simplification of description, but the blade rubber 30 is also bent along the bending of the rubber support portion 20. That is, the blade rubber 30 is also configured to include a portion corresponding to the extending portion 210 and a portion corresponding to the extending portion 220.

  According to the above embodiment, as shown in FIGS. 2 and 3, in a state where the wiper blade 1 is mounted, the rubber support portion 2 and the blade rubber 3 are arranged in the circumferential direction from the circumferentially inner end 2 </ b> A. It has the extending | stretching part 21 extended | stretched linearly toward an outer side, and the extending | stretching part 22 bent to the downward side from the extending | stretching destination of the extending | stretching part 21, and extended | stretched linearly toward the edge part 2B of the circumferential direction outer side. Moreover, the angle AG1 between the extending portion 21 and the extending portion 22 is an obtuse angle (155 degrees). Therefore, the wiper blade 1 on the driver's seat side has a high drainage capacity while preventing the wiping water from scattering with a simple configuration.

  Further, according to the embodiment, as shown in FIGS. 4 and 5, the rubber support portion 20 and the blade rubber 30 are circularly connected from the circumferentially inner end 20 </ b> A when the wiper blade 10 is mounted. An extending portion 210 that extends linearly outward in the circumferential direction, and an extending portion 220 that bends downward from the extension destination of the extending portion 210 and extends linearly toward the outer circumferential end portion 20B. Have. Further, the angle AG2 between the extending portion 210 and the extending portion 220 is an obtuse angle (155 degrees). Therefore, the wiper blade 10 on the passenger seat side also has a high drainage capacity while preventing the wiping water from being scattered with a simple configuration.

  In particular, the wiping water of rainwater due to the centrifugal force when the wiper blades 1 and 10 are rotated does not scatter linearly and can flow in a curved line as shown by the broken line in FIG.

  Further, the rainwater line after wiping with the wiper blades 1 and 10 (after drainage) hardly remains on the front window 91 (FIG. 1).

  Further, by setting the bending angle to 155 degrees, it is possible to more reliably prevent rainwater from being scattered than when the bending angle is larger than 155 degrees, and the bending of the wiper blades 1 and 10 can be prevented. It is possible to avoid contact of the tip with the car body (bonnet) 93.

  As a result of the experiment, when the bending angle is set to 155 degrees, the drainage capacity is improved by about 30% compared to the wiper blade formed in a linear shape. Therefore, drainage capacity during heavy rain is high.

<2. Modification>
The wiper blade according to the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made within the scope described in the claims.

  For example, in the above-described embodiment, the case where the angles AG1 and AG2 form 155 degrees is illustrated, but the present invention is not limited to this, and may be a larger angle or a smaller angle as long as it is an obtuse angle. Also good. Further, the angles AG1 and AG2 do not necessarily have the same value, and may be different values as long as they are obtuse.

  Moreover, in the said embodiment, although the case where the rubber support part 2 was comprised so that it might be bent by the edge part 41 of the circumferential direction outer side among the primary levers 4 was illustrated, it is not limited to this, Other locations ( For example, you may comprise so that it may be bent in the middle of the primary lever 4).

  Moreover, in the said embodiment, although the rubber support part 20 illustrated the case where it comprised so that it might be bent on the way to the edge part 420 of the circumferential direction outer side from the substantially center part among the main levers 40, it limited to this. Instead, it may be configured to bend at other locations (for example, the outer end of the main lever 40 in the circumferential direction).

  Moreover, although the said embodiment demonstrated the case where the extending parts 21 and 22 which comprise the rubber support part 2 were extended | stretched linearly, it is not limited to this. For example, a flexible member such as rubber may be employed for the extending portions 21 and 22 so that the extending portions 21 and 22 extend in a curved shape (arc shape) when not attached. However, at the time of mounting, since it is pressed against the front window 91 (dotted line in FIG. 6), the extending portions 21 and 22 are deformed from an arc shape to a substantially linear shape. At that time, like the above-described embodiment, the extending portion 22 bends about 25 degrees downward with respect to the extending portion 21. In addition, although description is abbreviate | omitted, it is also possible to comprise similarly the rubber support part 20 of the said embodiment using a flexible member.

  As described above, the wiper blade according to the present invention is suitable for installation on a front window or the like of a vehicle.

1,10 wiper blade, 2 rubber support, 2A, 2B end,
3 Blade rubber, 4 Primary lever, 4B Outer connection part,
5 Secondary lever, 5B connecting part, 6 Yoke lever, 7 Claw part,
8 wiper arms, 10 wiper blades, 20 rubber support,
20A, 20B end part, 21, 22 extension part, 30 blade rubber,
40 main lever, 41 end, 60 yoke lever, 70 claw,
80 wiper arm, 91 front window, 210, 220 extending part,
420 end, AG1, AG2 angle

Claims (2)

A wiper blade attached to a wiper arm and configured to be rotatable with the rotation of the wiper arm,
Rubber support,
A blade rubber supported by the rubber support;
With
In a state where the wiper blade is mounted, the rubber support portion and the blade rubber are extended from the end on the inner side in the circumferential direction toward the outer side in the circumferential direction, and the extension of the first extension portion A second extending portion that bends downward from the tip and extends toward the outer circumferential end,
Angle between the second extending portion and the first extending portion is Ri obtuse der,
The first extending portion and the second extending portion are formed of a flexible member, and the first extending portion and the second extending portion extend in an arc shape when not attached, and the front window is attached when attached. While being pressed, the first extending portion and the second extending portion are deformed from an arc shape to a substantially linear shape, and the second extending portion is viewed from a direction orthogonal to the front window surface with respect to the first extending portion. A wiper blade characterized by bending downward . The wiper blade according to claim 1, wherein an angle between the first extending portion and the second extending portion is 155 degrees.

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