KR20010088145A - Wiprer blade for use in an automobile - Google Patents

Abstract

PURPOSE: A vehicle wiper blade is provided to allow the wiper blade to smoothly operate by wrapping the bracket joint with rubber so as to prevent ice formation during winter time. CONSTITUTION: A vehicle wiper blade comprises an upper link(20) to which a clip(22) for connection with a wiper arm is fixed; an intermediate link(21) which is pivot-coupled to the upper link; a lower link(24) coupled, through a rivet(32), to the intermediate link in a height-adjustable manner; a plate spring attached to the lower end of the lower link; and a rubber(26) having a lower end tightly contacting the surface of the wind shield, and an upper end wrapping the intermediate link, lower link and the plate spring through a coupling portion formed at the upper end of the rubber. The intermediate link has an elongated slot for insertion of the rivet.

Description

Car wiper blades {WIPRER BLADE FOR USE IN AN AUTOMOBILE}

The present invention relates to a vehicle wiper blade, and more particularly, a vehicle wiper blade configured to cover the bracket structure of the wiper blade with a rubber to prevent freezing due to moisture inflow of the rivet part so that the wiper blade can operate smoothly in winter. It is about.

The windshield is fitted to the front of the car to prevent the wind or rain from blowing from the front while driving. When dust or dirt accumulates on the surface of the windshield, it is difficult to secure the view in front of the windshield. In particular, when driving in snow or rainy areas, it is necessary to remove the moisture on the surface of the windshield quickly. Can be. For this purpose, the vehicle is equipped with a wiper system to remove dust and rain on the windshield surface.

In the general configuration of the wiper system, the wiper motor, the wiper link operated by the wiper motor, the wiper arm rotated by the wiper link within a range of an angle, and the center part are fixed to the end of the wiper arm. When the wiper arm is moved, the wiper brush is wiped by wiping the surface of the windshield while moving within a range of angles along the surface of the windshield.

1 is a perspective view showing a conventional vehicle wiper blade. According to this configuration, in the winter blade in which the rubber cover 1 is provided covering the yoke 4 supporting the blade rubber 5 and the rubber mechanism, the auxiliary rubber 3 faces the main rubber 2. In the place where the projection protrudes toward the main rubber 2, an opening 2a allowing insertion of the projection is provided. On the rubber cover 1, the bracket 9 to which the arm is coupled by the screw 10 is fixed.

In the conventional vehicle wiper blade having such a configuration, the rubber cover is partially covered on the link of the blade to prevent the admiration. However, when the ambient temperature drops below zero in cold winter, the joint rivet portion of the bracket freezes, and thus the wiper blade does not operate. It becomes impossible. In particular, if the water or washer fluid caused by melting snow soaks into the joint rivets and freezes, there is a problem that the rivets cannot be rotated and the windshield can not be wiped even when the wiper is operated. In addition, since the overall height of the wiper blade is constant, the floating performance is constant, so that a lot of force is applied to the wiper blade on a snowy day, and the floating performance is reduced.

An object of the present invention for solving the above problems is to provide a vehicle wiper blade configured to cover the bracket structure of the wiper blade with a rubber to prevent freezing caused by the inflow of water to the rivet part to operate the wiper blade smoothly in winter. have.

1 is a perspective view showing the configuration of a conventional wiper blade,

Figure 2 is a perspective view showing the configuration of the wiper blade according to the present invention,

3 is a partially enlarged cross-sectional view of FIG. 2 showing a connection state between a main link and a secondary link;

4 is a cross-sectional view of the wiper blade according to the present invention;

♣ Explanation of symbols for the main parts of the drawing

20: upper link 21: intermediate link

22: Clip 24: Secondary link

26: Rubber 30: Cover

32: rivet 34: leaf spring

In order to achieve the above object, the present invention provides a vehicle wiper blade mounted on a wiper arm operated by a wiper motor to remove foreign substances while moving at a predetermined angle along the surface of the windshield, wherein a clip for connecting to the wiper arm is provided. A fixed upper link, an intermediate link pivotally coupled to the upper link, a lower link coupled to the intermediate link by a rivet so that the height can be adjusted, a leaf spring attached to the lower end of the lower link, and a lower windshield It provides a wiper blade in close contact with the surface and made of a rubber surrounding both the intermediate link and the lower link and the leaf spring by the coupling portion of the top.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view showing the configuration of the wiper blade according to the present invention, Figure 3 is a view showing a connection state between the main link and the auxiliary link, Figure 4 is a cross-sectional view of the wiper blade according to the present invention.

The vehicle wiper blade is mounted on a wiper arm operated by a wiper motor, and removes foreign matter on the windshield surface while moving at an angle along the surface of the windshield when the motor is operated. Typically, the wiper blades are made of rubber with adequate elasticity, and the leaf springs are inserted in the blades to have adequate rigidity.

In the wiper blade having such a function, in order to prevent the freezing of the blade coupling portion in the cold winter to always maintain the operating state, in a preferred embodiment of the present invention, the rubber portion of the wiper blade is extended to the upper link connection portion It was formed by.

In the wiper blade of the present invention, the upper link 20 is fitted with a clip 22 for connecting to the wiper arm, the intermediate link 21 is pivotally coupled to the upper link 20 by rivets, a small range It is possible to rotate in the vertical direction within. In addition, the intermediate link 21 is coupled to the lower link 24 so that the height can be adjusted up and down by the rivet 32, the lower link 24, the lower end of the plate for providing adequate rigidity to the blade A spring 34 is attached. In addition, the rubber 26 in close contact with the windshield surface surrounds the intermediate link 21, the lower link 24, and the leaf spring 34 by a coupling part 26a at the upper end.

Next, as shown in FIG. 3, the intermediate link 21 is formed with a long groove 21a into which the rivet 32 is inserted and fixed. Therefore, by changing the position of the rivet 32 inserted into the long groove 21a, the overall height of the wiper blade can be adjusted to appropriately adjust the degree of injury according to the surface state of the windshield.

Figure 4 is a cross-sectional view of the blade according to the present invention, the intermediate link 21 and the lower link 24 is firmly coupled by a rivet 32, these coupling portions are the coupling portion 26a of the rubber 26 Wrapped by Therefore, it is possible to prevent the freezing of the binding site even if the outside temperature is lowered by providing a thermal effect to the binding site.

According to the present invention described above, it is configured to cover the externally exposed bracket joint portion with a rubber to prevent freezing caused by moisture to keep the wiper blade always rotatable, and to adjust the height of the blade, appearance and There is an advantage that can improve the floating performance.

Claims (2)

A vehicle wiper blade mounted on a wiper arm operated by a wiper motor to remove foreign substances while moving at a predetermined angle along the surface of the windshield, The upper link 20 to which the clip 22 for connecting the wiper arm is fixed, the intermediate link 21 pivotally coupled to the upper link 20, and the rivet 32 to the intermediate link 21. The lower link 24 is coupled to the height adjustable, the leaf spring 34 attached to the lower end of the lower link 24, the lower end is in close contact with the windshield surface and the intermediate portion by the upper coupling portion 26a Vehicle wiper blade, characterized in that made of a rubber (26) surrounding both the link (21) and the lower link (24) and the leaf spring (34). 2. The vehicle wiper blade according to claim 1, wherein the intermediate link (21) is provided with a long groove (21a) into which the rivet (32) is inserted and fixed.