CN111469811A - A wiper strip and wiper blade using the same - Google Patents

Abstract

The invention discloses a wiper rubber strip, which comprises a rubber strip body and a second steel strip. The rubber strip body includes an installation part and a wiper part, and the installation part is symmetrically provided with a first steel strip installation groove penetrating along the length direction on the left and right sides of the upper part; The second steel bar installation grooves are arranged in an inverted shape with the two first steel bar installation grooves and the second steel bar installation grooves. The second steel bar is inserted into the second steel bar installation groove. The wiper strip of the present invention can maintain good fit and rigidity through the interaction between the second steel strip and the two first steel strips, so that the force is uniform, so that the blade can maintain a positive position on the glass surface for a long time. In the standing state, the working state is more stable, the scraping effect is good, and the durability is improved.

Description

A wiper strip and wiper blade using the same

technical field

The invention relates to the field of wipers, in particular to a wiper strip and a wiper using the same.

Background technique

Wiper, also known as wiper, water dial, wiper or windshield wiper, is a device used to wipe off raindrops and dust attached to the windshield of a vehicle to improve the driver's visibility and increase driving safety. Cars almost everywhere have wipers because of legal requirements.

The wiper strip is one of the important components of the wiper, and it is also used as a consumable in the wiper. Its performance directly affects the wiping effect of the wiper.

Figure 1 is a schematic diagram of an existing wiper strip. At present, the wiper strip still has the following defects:

1. At present, most of the wiper strips for automobiles are molded. During the process of molding, due to the control of the temperature threshold, the strips cannot reach a reasonable hardness, so the assembled wiper is prone to the edge of the strip. Pressing down on the surface of the glass makes the scraping effect poor and the glass blurred;

2. Some models put a lot of pressure on the wiper arm of the wiper. If the first steel bar in the wiper cannot withstand the pressure of the wiper arm, it is easy to cause the edge of the rubber strip in the pressed state to break during the reciprocating flanging process. ;

3. When scraping, the noise caused by flanging is large.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a wiper rubber strip and a wiper blade using the same, which can take into account the rigidity of the rubber strip and the fit type, and at the same time reduce noise.

To achieve the above object, the present invention adopts the following technical solutions:

A wiper rubber strip includes a rubber strip body, the rubber strip body includes an installation part and a wiper part, and the installation part is symmetrically provided with a first steel strip installation groove running through the length direction on the left and right sides of the upper part of the installation part. , and also includes a second steel bar, the installation part is provided with a second steel bar installation groove running through the length direction, and the two first steel bar installation grooves and the second steel bar installation groove are distributed in an inverted shape, so The second steel bar is inserted into the second steel bar installation groove.

Preferably, the cross-section of the second steel rod installation groove is rectangular, and the cross-sectional size of the second steel rod is adapted to the second steel rod installation groove.

Preferably, along the length direction, the second steel bar is arc-shaped, and two ends of the second steel bar are provided with clamping grooves.

Preferably, the second steel bar is made of stainless steel, SK5 steel, SK6 steel or manganese steel.

Preferably, the scraping portion is provided with a through hole penetrating in the longitudinal direction.

Preferably, the main body of the wiper portion is in the shape of a large upper portion and a small lower portion, the lower end of the main body extends downward to form a blade portion, and the through hole is provided in a central area of the main body of the wiper portion.

Preferably, the mounting portion is symmetrically provided with triangular grooves extending in the longitudinal direction on the left and right sides of the lower portion thereof.

Preferably, the rubber strip body is formed by extrusion molding.

The present invention also adopts the following technical solutions:

A wiper blade, comprising two first steel bars and the aforementioned wiper rubber strip, the two first steel bars are inserted into the two first steel bar installation grooves, the two first steel bars The bars and the second steel bars are distributed in an inverted shape.

Preferably, the width of the second steel bar is 1/4-1/2 of the width of the first steel bar.

After adopting the above-mentioned technical scheme, the present invention has the following advantages compared with the background technology:

The wiper strip of the present invention is formed by extrusion molding, and a second steel strip installation groove is designed on the wiper strip, so that the second steel strip installation groove and the two first steel strip installation grooves are distributed in an inverted shape. In this way, the installed second steel bars and the two first steel bars are also distributed in an inverted shape. Through the interaction between the second steel bars and the two first steel bars, the rubber bars can maintain good fit and good rigidity. , so that the force is uniform, and the blade will not be pressed on the glass surface, nor will it shake or jump greatly during the working process, the working state is more stable, and the glass surface can be effectively scraped;

After the wiper strip of the present invention is inserted with the second steel strip, the entire wiper is subjected to force again, so that the blade of the strip can maintain an upright state on the glass surface for a long time, greatly reducing the risk of fracture, and having a longer service life;

The wiper rubber strip of the present invention is provided with a through hole running through the length direction in the wiper portion. The main purpose of the through hole is to enter the rubber strip through the wind, increase the pressure on the edge of the rubber strip, and reduce the beating at both ends of the wiper. And jitter, reduce the noise caused by the flanging process of the rubber strip; at the same time, it can also make the cutting edge not deformed, not shrinking, good toughness, and prolong the service life;

The outline of the first steel strip installation groove of the present invention is consistent with that of the existing wiper strip, and can be directly adapted to the existing boneless wiper. Users can directly replace and use the original boneless wiper, and the replacement cost is low.

Description of drawings

1 is a schematic cross-sectional view of an existing rubber strip;

Fig. 2 is the schematic diagram of the wiper strip of the present invention;

Figure 3 is a schematic cross-sectional view of a rubber strip body;

4 is a schematic cross-sectional view of the wiper blade of the present invention.

Description of reference numbers:

Rubber strip body 1, installation part 11, first steel strip installation groove 111, second steel strip installation groove 112, triangular groove 113, wiper part 12, through hole 121, second steel strip 2, first steel strip 3, The wiper body 4 .

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

It should be noted in the present invention that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are all based on the orientation or positional relationship shown in the drawings, only It is for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore should not be construed as a limitation of the present invention.

Example 1

Referring to FIG. 2 , the present invention discloses a wiper rubber strip, including a rubber strip body 1 and a second steel strip 2 .

Referring to FIG. 3 , the rubber strip body 1 includes a mounting portion 11 and a wiping portion 12 . The mounting portion 11 is symmetrically provided with first steel bar mounting grooves 111 penetrating along the longitudinal direction on the left and right sides of the upper portion thereof, so as to be used for mounting the first steel bar. The installation portion 11 is provided with a second steel rod installation groove 112 penetrating along the length direction, and the two first steel rod installation grooves 111 and the second steel rod installation groove 112 are distributed in an inverted shape.

The second steel bar 2 is inserted into the second steel bar installation slot 112 , and two ends of the second steel bar installation slot 112 protrude through the two ends of the second steel bar installation slot 112 . The cross-section of the second steel rod installation groove 112 is rectangular, and the cross-sectional size of the second steel rod 2 is adapted to the cross-section of the second steel rod installation groove 112 .

In this embodiment, the second steel bar 2 is in an arc shape adapted to the glass surface, and is made of stainless steel, SK5 steel, SK6 steel or manganese steel. Preferably, the two ends of the second steel bar 2 are provided with snap grooves for matching with the plugs (not shown) at both ends of the wiper blade, so that the entire rubber strip can be better fixed, so that when it swings up and down, the cutting edge of the rubber strip is Flanging is more comfortable and smooth.

Since the wiper portion 12 swings during use, the lower left and right sides of the mounting portion 11 are symmetrically provided with triangular grooves 113 penetrating in the longitudinal direction to increase the swing space.

In order to achieve noise reduction, reduce jitter and improve the toughness of the cutting edge, the scraping portion 12 is provided with a through hole 121 penetrating in the longitudinal direction. The main body of the wiper part 12 is in the shape of a large upper part and a small part in the lower part, that is, a nearly isosceles triangle. Considering the ease of formability and the fatigue resistance of the wiper strip during reciprocating wiping, in this embodiment, the cross-section of the through hole 121 is preferably a circular hole shape.

Example 2

Referring to FIG. 4 , the present invention also discloses a wiper blade, comprising two first steel bars 3 and the aforementioned wiper rubber strip. The two first steel bars 3 are inserted into the two first steel bar installation grooves 11 to complete the installation of the wiper rubber strip 2 on the wiper body 4 . After the installation is completed, the two first steel bars 3 and the second steel bars 2 are distributed in an inverted shape.

In this embodiment, the width of the second steel bar 2 is 1/4-1/2 of the first steel bar 3 , preferably 1/3 of the first steel bar 3 .

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. A wiper rubber strip, comprising a rubber strip body, the rubber strip body includes a mounting part and a scraping part, and the mounting part is symmetrically provided with a first steel strip running through the length direction on the left and right sides of its upper part. The installation groove is characterized in that: it further includes a second steel bar, the installation part is provided with a second steel bar installation groove that penetrates along the length direction, and the two first steel bar installation grooves and the second steel bar installation grooves Inverted shape distribution, the second steel bar is inserted in the second steel bar installation groove. 2 . The wiper blade according to claim 1 , wherein the cross-section of the second steel rod installation groove is rectangular, and the cross-sectional size of the second steel rod is the same as that of the second steel rod installation. 3 . slot to fit. 3 . The wiper strip according to claim 1 , wherein the second steel strip is arc-shaped along the length direction, and two ends of the second steel strip are provided with clamping grooves. 4 . 4 . The wiper strip according to claim 1 , wherein the second steel strip is made of stainless steel, SK5 steel, SK6 steel or manganese steel. 5 . 5 . The wiper blade according to claim 1 , wherein the wiper portion is provided with a through hole penetrating along the length direction. 6 . 6 . The wiper blade according to claim 5 , wherein the main body of the wiper part is in the shape of a large upper part and a small lower part, the lower end of the main body extends downward to form a blade part, and the through hole is provided in the the central area of the body of the wiper. 7 . The wiper blade according to claim 1 , wherein the installation portion is symmetrically provided with triangular grooves running through the length direction on the left and right sides of the lower portion of the installation portion. 8 . 8 . The wiper rubber strip according to claim 1 , wherein the rubber strip body is formed by extrusion molding. 9 . 9. A wiper blade, comprising two first steel bars, characterized in that: further comprising the wiper rubber strip according to any one of claims 1-8, wherein the two first steel bars are inserted into the two first steel bars. In a steel bar installation groove, the two first steel bars and the second steel bars are distributed in an inverted shape. 10 . The wiper blade of claim 9 , wherein the width of the second steel bar is 1/4-1/2 of the width of the first steel bar. 11 .

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