KR20130132088A

KR20130132088A - Wiper blade for automobile

Info

Publication number: KR20130132088A
Application number: KR1020120056199A
Authority: KR
Inventors: 이인호
Original assignee: 주식회사 캐프
Priority date: 2012-05-25
Filing date: 2012-05-25
Publication date: 2013-12-04

Abstract

Disclosed is a vehicle wiper blade that can reduce manufacturing costs. The disclosed vehicle wiper blade includes: a wiper strip provided to contact the vehicle glass; A plurality of springs disposed on both sides of the wiper strip; The wiper strip is spaced apart from each other on both sides with a pair of spring receiving portion for receiving the plurality of springs, respectively, characterized in that it comprises a spoiler engaged with the wiper strip.

Description

Car wiper blades {WIPER BLADE FOR AUTOMOBILE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wiper blade, and relates to a vehicle wiper blade which can reduce manufacturing costs.

Automotive wiper blades are designed to wipe off debris such as rain, snow and dust on the front and rear windows of the vehicle.

There is a flat wiper blade to which elastic force is applied to preload to a curvature greater than the curvature of the curved surface of the vehicle glass before it is pressed by the wiper arm. The flat wiper blade includes a wiper strip that is in close contact with the vehicle glass, a spring for providing the elastic force to the wiper strip, and a spoiler having an air winder to apply a downward force to the wiper strip by wind power while driving the vehicle. do.

In the case of such a flat wiper blade, not only the structure is complicated, but also a plurality of parts are manufactured and assembled separately, thereby increasing manufacturing costs.

In addition, if the height of the spoiler is designed to receive a lot of wind, rather than acting as a resistance to the bending performance of the spring, the wiping performance may be reduced.

Accordingly, it is an object of the present invention to provide a wiper blade which can reduce manufacturing costs.

Another object of the present invention is to provide a wiper blade which can improve the wiping performance at high speeds.

Another object of the present invention is to provide a wiper blade which can be closely adhered to the vehicle glass.

According to the present invention, there is provided a vehicle wiper blade comprising: a wiper strip provided to be in contact with a vehicle glass; A plurality of springs disposed on both sides of the wiper strip; Vehicles, characterized in that spaced apart from each other on both sides of the wiper strip has a pair with the spring receiving portion for receiving the plurality of springs, respectively, and the spoiler is engaged with the wiper strip. Can be achieved by a wiper blade.

Here, the plurality of spring receiving portions and the wiper strip may be arranged such that a line connecting central portions of the plurality of spring receiving portions passes through at least a portion of the wiper strip. As a result, the plurality of springs and the wiper rips are arranged in a row in the lateral direction, thereby reducing the overall height of the wiper blades.

According to the vehicle wiper blade according to the present invention has the following effects.

First, manufacturing costs can be reduced. This is achieved by integrally manufacturing the spring receptacle for accommodating the spring in the spoiler or omitting the spring coating to prevent rust from occurring because the outer profile of the spring is not exposed to the spring receptacle. Can be obtained.

Second, the wiper strip of the wiper blade can be more closely adhered to the vehicle glass. This can be achieved by lowering the overall height of the wiper blade (the distance from the vehicle glass surface to the upper end of the spoiler) by placing the springs on each side with the wiper strips in between.

Third, by reducing the overall height of the wiper blade can reduce the wind-up (lift-up) phenomenon can improve the wiping performance during high-speed driving.

1 is a cross-sectional view of main parts of a wiper blade according to the present invention;
Fig. 2 is a cross sectional view of a main portion of a wiper blade according to another embodiment of the present invention.

Hereinafter, a wiper blade for a vehicle according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

Vehicle wiper blade 1 according to an embodiment of the present invention, as shown in Figure 1, the wiper strip 300 in close contact with the vehicle glass to wipe the foreign matter attached to the vehicle glass; A plurality of springs bent at a predetermined curvature to apply a preload to the wiper strip 300; And a spoiler 100 having a spring accommodating part 135 accommodating each of the plurality of springs 200 and an air convex 111. The wiper strip 300, the spoiler 100, and the spring 200 extend in a lengthwise direction perpendicular to the ground in the shape shown in FIG. 1.

The spoiler 100 includes a first member 110 in which the wind 111 is formed and a second member 130 having the spring receiving portion 135.

The first member 110 may be provided in a solid form in which all of the first member 110 is filled.

The first member 110 and the second member 130 may be provided of the same material.

In some cases, the first member 110 and the second member 130 may be made of different materials. The first member 110 may be made of a material that is more flexible than the second member 130. As an example, the first member 110 may be made of rubber and / or EPDM and / or polymer and / or soft plastic. The first member 130 may be made of rigid plastic such as polycarbonate (PC) and / or polypropylene (PP) and / or polyester (PET). Of course, this is only an example and can be changed and substituted with various materials.

The first member 110 and the second member 130 may be manufactured by simultaneously extruding.

In some cases, the first member 110 and the second member 130 may be coupled to each other by thermal or ultrasonic welding, or may be coupled by an adhesive.

The second member 130 includes a plurality of spring receiving parts 135 disposed on both sides with the wiper strip 300 interposed therebetween.

As a result, the wiper strip 300 may be disposed between the plurality of springs 200. In more detail, the plurality of spring receiving portions 135 and the wiper strip 300 pass through the wiper strip 300 so that a line L connecting the central portions of the plurality of spring receiving portions 135 passes through the wiper strip 300. This can be arranged.

The second member 130 may further include a head receiving portion 131 for accommodating a portion of the wiper strip 300, more precisely, the head portion 350 of the wiper strip 300.

The head accommodation portion 131 may be provided in a shape corresponding to the head portion 350 of the wiper strip 300.

The head accommodating part 131 may be provided as an accommodating groove for accommodating the head portion 350.

The head accommodation portion 131 includes a locking portion 133 that can engage with the head portion 350 of the wiper strip 300. The distance between the locking portions 133 is greater than the width of the neck portion 351 of the wiper strip 300. As a result, the head portion 350 of the wiper strip 300 may be inserted into the head accommodation portion 131.

The wiper strip 300 includes a wiper tip 310 in contact with the vehicle glass; The head portion 350; A body portion 340 extending from the head portion 350 toward the wiper tip 310; The neck portion 351 connecting the body portion 340 and the head portion 350; And a tilting rib 330 connecting the wiper tip 310 and the body portion 340.

The tilting lip 330 is designed to have a smaller width than the body portion 340. As a result, the wiper tip 310 may be easily tilted with respect to the body portion 340.

On the other hand, the spring 200 has a first spring (210) disposed on one side with respect to the wiper strip 300; The second spring 220 is disposed on the other side of the wiper strip 300.

The first spring 210 and / or the second spring 220 may have a rectangular cross section as shown in the drawing. That is, the first spring 210 and / or the second spring 220 may be a flat plate spring.

The first spring 210 and the second spring 220 may be made of the same material. Of course, in some cases it may be provided with different materials.

The first spring 210 and / or the second spring 220 may be provided in a polygonal shape except for a circle or a quadrangle, unlike a cross section of the first spring 210 and / or the second spring 220. The first spring 210 and / or the second spring 220 of the circular cross-sectional area may be provided as a rod.

In some cases, the cross-sectional shape of the first spring 210 and the second spring 220 may be provided differently. As an example, the first spring 210 may be a circular steel rod and the second spring 220 may be a rectangular leaf spring.

The cross-sectional areas of the first spring 210 and the second spring 220 may be provided to be the same. In some cases, the first spring 210 and the second spring 220 may be provided such that their cross-sectional areas are different from each other.

The first spring 210 and the second spring 220 may be provided to have the same curvature in the longitudinal direction of the wiper blade (1). If necessary, the first spring 210 and the second spring 220 may be provided to have different curvatures along the length direction.

In the above, the head receiving portion 131 for accommodating the head portion 350 of the wiper strip 300 in the spoiler 110 has been described as forming a receiving groove. In some cases, as shown in FIG. 2, a protrusion 137 corresponding to the head portion 350 is formed on the spoiler 110, and a protrusion of the spoiler 110 is formed on the wiper strip 300. An accommodation part 361 to be accommodated may be formed.

That is, the wiper blade 1a according to another embodiment of the present invention includes a spoiler 100a in which the protrusion 137 is formed; The protrusion part 137 may include a wiper strip 300a in which an accommodation part 361 is accommodated. Here, the catching portion 360 which forms an upper portion of the accommodating portion 361 and is engaged with the protruding portion 137 may be formed of a material different from the wiper tip of the wiper strip 300a. The locking part 360 may be formed of a material having a greater strength than the wiper tip of the wiper strip 300a. In more detail, the locking part 360 may be made of a rigid plastic such as polycarbonate or polypropylene, and the wiper tip may be made of a soft material such as rubber. Of course, these materials are only examples and may be substituted and changed to various materials.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the scope of the present invention should be determined by the appended claims and their equivalents.

1: wiper blade 100, 100a: spoiler
110: first member 130: second member
200: spring 210, 220: first spring, second spring
300, 300a: wiper strip 350: head portion

Claims

In the vehicle wiper blade,
A wiper strip provided to contact the vehicle glass;
A plurality of springs disposed on both sides of the wiper strip;
Vehicles comprising a spoiler disposed to be spaced apart from each other on both sides with respect to the wiper strip has a pair of spring receiving portion accommodating each of the plurality of springs, the spoiler is engaged with the wiper strip. wiper blade.

The method of claim 1,
The plurality of spring receiving portion and the wiper strip,
And a line connecting central portions of the plurality of spring receiving portions to pass through at least a portion of the wiper strip.