KR200405127Y1 - wiper blade - Google Patents

Abstract

The present invention relates to a wiper blade, and consists of a rubber wiper blade 10 and a leaf spring 20 coupled to the wiper blade to support the wiper blade without using an expensive resin or metal support. The bracket 30, into which the adapter 40 for coupling the wiper blade to the wiper arm, is fitted at the center of the leaf spring 10, is clamped, riveted, or joined by various welding methods. . The wiper blade 10 is formed between the blade portion 12 which contacts the windshield surface and removes foreign matter, a body portion 14 supporting the blade portion 12 and between the blade portion 12 and the body portion 14. At least one neck portion 16, the body portion 14 is formed with a seating groove 18 into which the leaf spring 20 is inserted, the leaf spring 20 on both left and right sides of the seating groove 18 Step 19 is formed to prevent the flow and separation of the plate spring 20 is inserted into the seating groove 18, the other side is pulled by using the elasticity of the rubber wiper blade 10 of the plate Assembly is completed by fitting the spring 20 to the seating groove 18.

Wiper Blades, Wiper Blades, Leaf Springs, Adapters, Seating Grooves, Elastic

Description

Wiper Blades {A Wiperblade}

1 is a perspective view of a wiper blade according to an embodiment of the present invention,

2 is a front view of the wiper blade according to an embodiment of the present invention,

Figure 3 is a longitudinal cross-sectional view of the wiper blade according to an embodiment of the present invention,

4 is a cross-sectional view of the wiper blade according to an embodiment of the present invention,

5 is a perspective view of a wiper blade according to another embodiment of the present invention,

6 is a front view of a wiper blade according to another embodiment of the present invention,

Figure 7 is a longitudinal cross-sectional view of the wiper blade according to another embodiment of the present invention,

Figure 8 is a cross-sectional view of the wiper blade according to another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: wiper blade 12: blade

14 body portion 14a inclined surface

16: neck 17: opening

18: seating groove 19: step

20: leaf spring 22: coupling portion

30: bracket 32: coupler

34: shaft pin 40: adapter

The present invention relates to a wiper blade, and in detail, a plate supporting the wiper blade by being bonded to the wiper blade of the rubber material and the wiper blade without using an expensive resin or metal support as in the conventional wiper blade. It is made of spring only, and the bracket in which the adapter for joining the wiper blade to the wiper arm is fitted at the center part by clamping, riveting, or various welding methods to reduce assembly labor and lower manufacturing cost. It is.

When rain or other foreign matter gets on the surface of the windshield while driving, it is difficult to secure the front field of view. The wiper blade is detachably attached to the tip of the wiper arm which reciprocates from side to side within a predetermined angle range. The wiper blade has a uniform pressure on the surface of the curved windshield. As shown in FIG. 1, a large arc-shaped metal or synthetic resin support 1, a plurality of small supports 2 attached to the lower part of the support 1, and the small support as shown in FIG. Rubber wiper blade (3) coupled to the lower end of the (2) and the level to fit the inside of the wiper blade to provide elastic force to the wiper blade It comprises a spring (4), the central portion of the support (1) is pinned in the pivotable state the adapter (5) for coupling the wiper blade to the tip of the wiper arm.

On the other hand, the conventional wiper blade has a large number of parts due to the use of an arcuate large support 1 and a plurality of small supports 2, and thus the manufacturing cost of the product is not only high due to the increase in the number of assembly operations in the factory. The wiper blade shakes due to the air resistance that the support receives during the driving of the car, especially when driving at high speeds, causing noise and degrading the wiping performance during high speed driving. In addition, it acted as a visually unobtrusive obstacle, and has been an obstacle in creating the elegant appearance of the car.

The present invention has been devised to solve the above-mentioned conventional problems, an object of the present invention is to significantly reduce the number of parts of the wiper blade to reduce the assembly labor and to reduce the manufacturing cost, incidentally To provide a wiper blade with a simple structure of a new shape that matches the appearance of a simple car, there is no phenomenon that the wiper blade is injured or shaken by air resistance even at high speeds, and the driver's vision It is to provide a wiper blade of improved structure unobstructed.

In order to achieve the above object, the present invention is made of only a wiper blade of rubber and a leaf spring coupled to the wiper blade to support the wiper blade without using an expensive resin or metal support. In general, the central portion provides a wiper blade in which a bracket into which an adapter for coupling the wiper blade to the wiper arm is fitted is coupled by various welding methods such as clamping or riveting or spot welding.

The wiper blade of the present invention includes a blade portion contacting the windshield surface to remove foreign substances, a body portion supporting the blade portion, and a neck portion formed between the blade portion and the body portion, and the body portion has a seat spring inserted therein. Grooves are formed, and at both ends of the seating grooves, stepped holes are formed to prevent the flow of the leaf springs and their departure to the outside, and one side of the leaf springs is inserted into the seating grooves, and the other side uses the elasticity of the rubber wiper blade. Assembly is completed by pulling the plate spring into the seating groove.

Hereinafter, with reference to the accompanying drawings, preferred embodiments that do not limit the present invention will be described in detail.

1 is a perspective view of a wiper blade according to an embodiment of the present invention, Figure 2 is a front view of the wiper blade according to an embodiment of the present invention, Figure 3 is a longitudinal cross-sectional view of the wiper blade according to an embodiment of the present invention. 4 is a cross-sectional view of the wiper blade according to an embodiment of the present invention.

As shown in FIGS. 1 to 4, the wiper blade according to the present embodiment includes only a wiper blade 10 of rubber material and a leaf spring 20 coupled to the wiper blade 10 to support the wiper blade. The coupling part 22 is formed in the center part of the leaf spring 20 so that the bracket 30 into which the adapter 40 for coupling the wiper blade to the wiper arm, which is not shown, can be engaged by the clamping method. .

In the wiper blade of the embodiment shown in Figures 1 to 4, the wiper blade 10 is a blade portion 12 to contact the windshield surface to remove foreign matter, a body portion 14 supporting the blade portion 12 and the blade portion It comprises a neck 16 formed between the 12 and the body portion 14, the body portion 14 is formed with a seating groove 18 into which the leaf spring 20 is inserted, the seating groove At both ends of the plate 18, a stepped plate 19 is formed to prevent the plate spring 20 from being inserted from side to side and to the outside of the plate spring 20 so that one side of the plate spring 20 is inserted into the seating groove 18. One side is pulled using the elasticity of the rubber wiper blade 10, and the assembly is completed by fitting the leaf spring 20 into the seating groove 18. As shown in FIG.

In the present embodiment, the seating groove 18 is open to the front side of the body portion 14, the rear surface of the leaf spring 20, such as the stepped jaw 19 is exposed to the front or detached It is blocked to prevent it.

Preferably, the left and right widths of the seating grooves 18 are formed to be slightly shorter than the left and right widths (lengths) of the leaf springs 20 so as to effectively prevent the leaf springs 20 coupled to the seating grooves 18 from flowing sideways. Do it.

In addition, the stepped jaw 19 formed on the left and right sides of the seating groove 18 may be disposed at the side to prevent the leaf spring 20 fitted into the seating groove 18 from being separated through the opening in front of the seating groove 18. It extends toward the front to form a generally "L" shape.

In addition, the front and rear ends of the stepped jaw 19 are separated from the rear surface of the blocked body 14 so that the wiper blade 10 can be easily extended to fit the leaf spring 20.

In the present embodiment, the coupling portion 22 of the middle portion of the leaf spring 20 fitted in the seating groove 18 is exposed at the center of the body portion 14 of the wiper blade 10 so that the bracket 30 can be clamped. The groove 17 opened to the outside is formed.

On the other hand, in the present embodiment, the upper surface of the body portion 14 of the wiper blade 10 forms an inclined surface 14a toward the rear upper portion, which is a spoiler of the body portion 14 of the wiper blade 10 itself. By allowing the windshield to flow smoothly to the rear of the air stream passing through the windshield surface at high speed, the wiper blade 10 can be kept in close contact with the windshield. Do it.

5 is a perspective view of a wiper blade according to another embodiment of the present invention, Figure 6 is a front view of the wiper blade according to another embodiment of the present invention, Figure 7 is a longitudinal cross-sectional view of the wiper blade according to another embodiment of the present invention, 8 is a cross-sectional view of the wiper blade according to another embodiment of the present invention.

The wiper blade according to the present embodiment also basically consists of the same structure and the same structure as that of the embodiment shown in Figures 1 to 4 described above, one difference is the central portion of the wiper blade 10 and the leaf spring 20 At the point where the width of the front and rear coupling portion 22 of the center is narrower, this embodiment is to be made to use a thinner thickness of the bracket 40 for attaching the wiper blade to the wiper arm. .

In this embodiment, the structures of the wiper blade and the leaf spring are the same as those described in the first embodiment, and thus redundant descriptions are omitted.

The process of assembling the wiper blade of the present invention configured as described above will be described.

The wiper blade according to the present invention consists of only four parts, namely, the rubber wiper blade 10, the leaf spring 20, the bracket 30 and the adapter 40, first, the leaf spring 20 to the wiper blade ( 10, the fitting groove 18, but the insertion of the leaf spring 20, the wiper blade 10 is made of a rubber material having an elastic force, so as described above, one side of the leaf spring 20 seating groove ( 18) and then the other side is pulled by using the elasticity of the rubber wiper blade (10) by inserting the leaf spring 20 into the seating groove (18) simply assembly is made.

Next, the coupling portion 22 in the center of the leaf spring 20 may be coupled to the bracket 30, which replaces the coupling hole 32 (see FIGS. 1 and 2) of the bracket 32 with the leaf spring 20. By press working against the center coupling portion 22, in addition to the clamping coupling method, it can also be coupled by a method such as riveting or spot welding.

Finally, when the adapter 40 is forcibly inserted into the shaft pin 34 of the bracket 30, the assembly is completed.

As described above, the wiper blade according to the present invention is composed of only four parts, thereby simplifying the assembly process at the factory, thereby reducing manufacturing cost, and since there is no arcuate support used in the conventional wiper blade, the wiper blade It has a simple structure that can be matched to the design of the car, and does not interfere with securing the driver's front field of view. Since the upper surface of the body is made up of inclined surfaces, it has a spoiler effect during high-speed driving, and thus wiper blades due to air resistance. Since there is no floating or trembling phenomenon, it has a useful effect such as stable wiping performance.

Claims (5)

Comprising a rubber wiper blade, a leaf spring coupled to the wiper blade to support the wiper blade, a bracket to which the leaf spring is coupled, and an adapter pinned to the bracket; The wiper blade 10 is formed between the blade portion 12 which contacts the windshield surface and removes foreign substances, a body portion 14 supporting the blade portion 12 and between the blade portion 12 and the body portion 14. It includes at least one neck portion 16, the body portion 14 has a seating groove 18 is inserted into the leaf spring 20 is opened toward the front side of the body portion 14, the seating Steps 19 are formed at both ends of the groove 18 to prevent the flow and departure of the leaf spring 20, and a coupling portion 22 clamped to the bracket 30 is formed at the center of the leaf spring 20. The wiper blade is formed, characterized in that the bracket (30) is formed with a coupling hole (32) for clamping the coupling portion (22). The method according to claim 1, The stepped jaw 19 extends from the side to the front side so as to prevent the leaf spring 20 fitted into the seating groove 18 from being separated through the opening in front of the seating groove 18 to form an "L" shape. Wiper blades, characterized in that. The method according to claim 2, Wiper blade, characterized in that the left and right end step 19 is separated from the rear surface of the closed body portion (14). The method according to claim 1, In the center of the body portion 14 of the wiper blade 10, the engaging portion 22 of the middle portion of the leaf spring 20 fitted in the seating groove 18 is protruded and opened to the outside to enable the clamping with the bracket 30. The wiper blade, characterized in that the groove (17) is formed. The method according to claim 1 or 2, The wiper blade, characterized in that the upper surface of the body portion 14 of the wiper blade 10 forms an inclined surface 14a toward the rear upper portion.

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