Boneless rubber strip of windscreen wiper

Abstract

The utility model discloses a boneless rubber strip of a windscreen wiper, which comprises a U-shaped rubber strip bottom, water guide parts integrally formed above two ends of the rubber strip bottom, a water wiping strip integrally formed at the lower ends of the water guide parts and close to the rubber strip bottom, and a rubber strip middle part integrally formed above the water guide parts and capable of being extruded and folded, the adhesive tape top and the adhesive tape middle part are integrally formed, and the surface of the adhesive tape top is flat; the adhesive tape bottom, the water guide part, the adhesive tape middle part and the adhesive tape top form a hollow pressure relief cavity; by means of the design of the pressure relief cavity, the middle of the rubber strip and the air holes, the water wiping effect is improved, meanwhile, the adverse effects of noise and vibration in the using process can be effectively reduced, and the high-performance requirement of a modern automobile for a windscreen wiper system is met.

Description

Technical Field

[0001] This utility model relates to a frameless rubber strip for windshield wipers. Background Technology

[0002] Most existing car windshield wipers are frameless wipers, which use a frame to press the wiper blade against the glass, cleaning the windshield with the rubber material. However, there are several reasons why wipers may produce noise during operation. For example, if the frameless rubber blade is pressed too tightly against the windshield, it may bounce during wiping, and the lack of a flexible structure to cushion the pressure can cause significant friction and noise between the blade and the glass. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a frameless rubber strip for windshield wipers.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A frameless wiper blade includes a U-shaped bottom edge, a water guide portion integrally formed above both ends of the bottom edge, a wiper blade integrally formed below the water guide portion and near the bottom edge, a squeezeable and foldable middle edge integrally formed above the water guide portion, and a flat top edge integrally formed with the middle edge. The bottom edge, water guide portion, middle edge, and top edge constitute an internally hollow pressure-relieving cavity.

[0006] Preferably, the outer surface of the water guide is arc-shaped.

[0007] Preferably, the end of the wiper strip is tapered, and the tip of the tapered strip extends beyond the bottom of the wiper strip.

[0008] Preferably, the middle part of the adhesive strip has a diamond-shaped interconnected structure or a grid-like hollow structure.

[0009] Preferably, the top two ends of the adhesive strip are provided with metal spring clip slots.

[0010] Preferably, the top of the rubber strip has several air holes that connect to the pressure relief chamber at equal intervals.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. Improved wiping performance: The tapered end design increases the contact area between the wiping strip and the glass surface, ensuring that the wiping strip can effectively remove water droplets and accumulated water from the glass. During wiping, the bottom of the wiping strip and the squeezeable middle of the wiping strip work together to cause the wiping strip to deform inward under pressure, thereby further enhancing the contact between the wiping strip and the glass surface and improving the wiping performance.

[0013] 2. Reduce noise: The diamond or grid structure in the middle of the rubber strip can absorb and relieve pressure during wiping, reducing the bouncing vibration caused by friction between the rubber strip and the glass surface, thus effectively reducing the noise during wiping. The pore design helps to alleviate the problem of uneven pressure inside the rubber strip, making the contact between the wiping strip and the glass surface more stable, further reducing the noise during wiping.

[0014] 3. Improved durability and stability: The middle part of the rubber strip adopts a stretchable and compressible structure, which can effectively restore its original shape. This means that even after long-term use, the rubber strip can maintain good wiping performance and extend its service life. The air vents can promptly release the gas in the pressure relief chamber when the wiper strip is under pressure, avoiding gas accumulation that could cause the rubber strip to deform or become unstable, thus ensuring the long-term stability of the wiper strip.

[0015] 4. Optimized water flow guidance: The arc design of the water guide helps guide rainwater to flow smoothly to the wiper blades, avoiding water splashing and ensuring that the wiper blades can play their full role, effectively improving wiping efficiency;

[0016] 5. Improved sealing and comfort: The hollow design of the pressure relief chamber, combined with the structure of the bottom and middle of the rubber strip, provides a certain buffer space, ensuring that the rubber strip can fit tightly against the windshield after installation, preventing water penetration and improving the sealing effect. The middle of the rubber strip not only provides an external seal, but also leaves a buffer space when under pressure, which helps to reduce noise and friction generated during wiping. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a frameless rubber strip for a windshield wiper according to the present invention;

[0018] Figure 2 for Figure 1 Cross-sectional view. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0020] Example

[0021] like Figure 1-2 As shown, a frameless wiper blade includes a U-shaped bottom 1, a water-guiding portion 2 integrally formed above both ends of the bottom 1, a wiper blade 3 integrally formed below the water-guiding portion 2 and close to the bottom 1, a squeezeable and foldable middle portion 4 integrally formed above the water-guiding portion 2, and a flat top portion 5 integrally formed with the middle portion 4. The bottom 1, water-guiding portion 2, middle portion 4, and top portion 5 together form a hollow pressure-relieving cavity 6.

[0022] In this embodiment, the outer surface of the water guide 2 is arc-shaped. Specifically, the arc-shaped water guide 2 is more conducive to guiding rainwater.

[0023] In this embodiment, the end of the wiper strip 3 is tapered, and the tip of the tapered strip extends beyond the bottom 1 of the rubber strip. Specifically, when the wiper strip 3 removes water from the glass surface, due to the squeezing force, the wiper strip 3 deforms inward using the bottom 1 of the rubber strip, which increases the contact area between the wiper strip 3 and the glass surface. At the same time, the bottom 1 of the rubber strip and the squeezeable and foldable middle part 4 of the rubber strip provide relief, thereby reducing the bouncing and vibration of the entire rubber strip. This not only removes rainwater but also reduces noise.

[0024] In this embodiment, the middle part 4 of the rubber strip has a diamond-shaped interconnected structure or a mesh-like hollow structure. Specifically, it can be stretched and compressed and easily returns to its original shape, so that the rubber strip presses on the windshield, sealing the outside and leaving a certain buffer space inside after the rubber strip is installed. It can also cooperate with the bottom 1 of the rubber strip to further improve the wiping effect of the wiper strip 3 and reduce wiping noise.

[0025] Metal spring clip slots 51 are provided at both ends of the top 5 of the rubber strip. Specifically, when the frameless rubber strip is assembled with the wiper deflector, it can be engaged in the metal spring clip slots 51 by means of metal spring clips, thereby driving the entire frameless rubber strip to slide and scrape away the water accumulated on the glass surface.

[0026] The top of the rubber strip 5 is provided with several air holes 52 that are connected to the pressure relief chamber 6 at equal intervals. Specifically, since the two ends of the boneless rubber strip are fitted with rubber caps, the gas inside the pressure relief chamber 6 cannot be discharged from the two ends in time after being squeezed, which increases the contact area between the wiper strip 3 and the glass surface. Therefore, the air holes 52 are used for ventilation, which can facilitate the pressure relief between the bottom 1 of the rubber strip and the middle part 4 of the compressible and foldable rubber strip when the wiper strip 3 is deformed inward by the bottom 1 of the rubber strip.

[0027] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A frameless rubber strip for windshield wipers, characterized in that, The rubber strip includes a U-shaped bottom, a water guide portion integrally formed above both ends of the bottom of the rubber strip, a wiper strip integrally formed below the water guide portion and near the bottom of the rubber strip, a squeezeable and foldable middle section integrally formed above the water guide portion, and a flat top section integrally formed with the middle section of the rubber strip. The bottom, water guide portion, middle section, and top section of the rubber strip constitute an internally hollow pressure-relieving cavity.

2. The wiper blade without frame as described in claim 1, characterized in that, The outer surface of the water guide is arc-shaped.

3. The wiper blade without frame as described in claim 1, characterized in that, The end of the wiper blade is tapered, with the tip extending beyond the bottom of the blade.

4. The wiper blade without frame as described in claim 1, characterized in that, The middle part of the rubber strip has a diamond-shaped interconnected structure or a grid-like hollow structure.

5. The wiper blade without frame as described in claim 1, characterized in that, Metal spring clip slots are provided at both ends of the top of the rubber strip.

6. The wiper blade without frame as described in claim 1, characterized in that, The top of the rubber strip has several air holes that connect to the pressure relief chamber at equal intervals.

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