A segmented wiper strip structure

Abstract

The present invention discloses a segmented windshield wiper strip structure, comprising a windshield wiper strip main body, a scraping blade provided below the windshield wiper strip main body, a cross-section of the windshield wiper strip main body presenting a W-shaped structure, a cross-section of the scraping blade presenting a triangular structure, a flip bridge provided between the windshield wiper strip main body and the scraping blade, main body deformation adjustment grooves symmetrically concave inwardly on both sides of the windshield wiper strip main body, a vertical portion provided at the bottom of the scraping blade, a middle horizontal portion of the windshield wiper strip main body, a main column portion between the main body deformation adjustment grooves on both sides, a flip bridge, a scraping blade waist, and a scraping blade bottom respectively provided with a symmetrical left second section, right second section, left third section, and right third section from the middle first section to both sides; the thickness of the first section becomes thinner section by section toward the left second section and the left third section; the thickness of the first section becomes thinner section by section toward the right second section and the right third section.

Description

Technical Field

[0001] The present invention relates to the field of automobile accessories, and in particular to a segmented windshield wiper strip structure. Background Art

[0002] Chinese patent application No. 201710796672.1 discloses a car wiper strip, which relates to the technical field of automobile parts production. The invention uses nitrile rubber, bismaleimide resin, and polymethyl acrylate as main raw materials, and then adds xylene, rosin, cationic starch, diisononyl ester, epoxy soybean oil, and various additives, and then goes through the steps of heating, stirring, three freezing treatments, and then hot melting.

[0003] Chinese patent application No. 201810360584.1 discloses a wiper strip comprising a main body made of a first rubber material and a blade portion made of a second rubber material; the blade portion is co-extruded integrally with the main body. The main body and blade portion of the present invention are made of different materials to meet the performance requirements of each.

[0004] With the development of automobile technology, boneless wipers are being used by most car manufacturers, and most models are equipped with boneless wipers when they leave the factory. The main function of the wiper bracket is to support and fix the wiper strips, and evenly distribute the downward force from the rocker arm to the strips. The boneless wiper relies on the rebound force generated by 1 to 2 pre-bent springs to disperse the downward force. Once a boneless wiper is produced, the rebound force generated by the springs being pressed flat on the glass by the rocker arm is fixed. This structure causes the boneless wiper to face the pressure differences of the rocker arms of various models. The performance is not as strong as the traditional bone wiper. Therefore, boneless wipers are more suitable for customized production of reeds according to the rocker arm pressure size and glass curvature of different models. The thickness, width, and curvature of the reed are individually designed to achieve different elastic force data. The original car-matched boneless wipers are designed and produced in this way.

[0005] However, wiper blades vary significantly between models. For example, the original driver's-side boneless wiper blade of a 2015 Haval H6 is 600mm long, with a measured rocker arm downforce of approximately 600 grams-force. The original driver's-side boneless wiper blade of a 2015 Audi A4L is also 600mm long, with a measured rocker arm downforce of approximately 1100 grams-force. With the increasing number of vehicles on the road, all manufacturers, both international and domestic, are focusing on the vast aftermarket. To reduce inventory and achieve universal compatibility, wiper blades within the same series are designed with only one spring force, set at the lower limit of the rocker arm downforce for most models. This lower spring force ensures that the boneless wiper blades can be pressed flat against the windshield on most models, preventing missed wipes. However, this can also result in excessive pressure on the rubber strip near the wiper interface when used on models with high rocker arm pressure. This section of the rubber strip can be quickly flattened, causing malfunction, water marks, and obstructed vision. In order to solve this problem, some manufacturers thicken the blade of the rubber strip to increase the supporting force. However, this overall thickening design makes the blade of the rubber strip harder as a whole, and the scraping attack angle changes, resulting in new problems such as skipping and abnormal noise. Summary of the Invention

[0006] The object of the present invention is to overcome the above-mentioned defects of the prior art and provide a segmented wiper strip structure, comprising a wiper strip body, a scraper blade provided below the wiper strip body, the cross-section of the wiper strip body presenting a W-shaped structure, the cross-section of the scraper blade presenting a triangular structure, a flip bridge provided between the wiper strip body and the scraper blade, body deformation adjustment grooves symmetrically concave inwardly on both sides of the wiper strip body, a vertical portion provided at the bottom of the scraper blade, a middle horizontal portion of the wiper strip body, a main column portion between the body deformation adjustment grooves on both sides, a flip bridge, a scraper blade waist, and a scraper blade bottom provided with symmetrical left second section, right second section, left third section, and right third section from the middle first section to both sides; the thickness of the first section becomes thinner section by section toward the left second section and the left third section; the thickness of the first section becomes thinner section by section toward the right second section and the right third section.

[0007] Furthermore, the thickness of the middle horizontal part of the wiper rubber strip body, the main column part between the deformation adjustment grooves on both sides of the body, the flip bridge, the scraper blade waist, the first section of the scraper blade bottom, the second section on the left, the second section on the right, the third section on the left, and the third section on the right are thinner in a step-by-step manner.

[0008] Furthermore, the thickness of the first section of the middle horizontal part of the wiper rubber strip body is 6.51 mm, the thickness of the second section is 6.10 mm; and the thickness of the third section is 5.00 mm.

[0009] Furthermore, the thickness of the first section of the main column between the deformation adjustment grooves on both sides is 2.80 mm, the thickness of the second section is 2.60 mm, and the thickness of the third section is 2.00 mm.

[0010] Furthermore, the thickness of the first section of the flip bridge is 1.10 mm, the thickness of the second section is 1.00 mm, and the thickness of the third section is 0.70 mm.

[0011] Furthermore, the thickness of the first section of the scraper blade waist is 1.80 mm, the thickness of the second section is 1.69 mm, and the thickness of the third section is 1.20 mm.

[0012] Furthermore, the thickness of the first section of the bottom of the scraper blade is 0.7 mm, the thickness of the second section is 0.60 mm, and the thickness of the third section is 0.3 mm, and the connection between each section has a smooth transition.

[0013] Furthermore, the middle horizontal part of the wiper rubber strip body, the main column part between the deformation adjustment grooves on both sides, the flip bridge, the scraper waist, and the scraper bottom are respectively provided with 3 to 10 symmetrical sections from the middle first section to both sides.

[0014] Furthermore, the height of the first vertical portion of the scraper bottom is 0.1 mm, the height of the second vertical portion is 0.56 mm, and the height of the third vertical portion is 0.71 mm.

[0015] Furthermore, the thickness of the middle horizontal part of the wiper rubber strip body, the main column part between the deformation adjustment grooves of the two side bodies, the flip bridge, the waist of the scraper blade, the first section of the scraper blade bottom, the second section on the left, the second section on the right, the third section on the left, the first section, the second section and the third section on the right are gradually thinner.

[0016] The benefit of the present invention is that it has a simple structure. The traditional boneless wiper strip with the same thickness throughout is changed into a wiper strip with segmented thickness. The thickness of the corresponding segment of the strip is designed according to the pressure size of the area. The supporting force of each segment of the strip is changed by changing the thickness, so that the universal multi-functional wiper can adapt well to various car models with huge differences in rocker arm pressure, which effectively improves the wiper's rain-wiping effect and extends the life of the universal multi-functional boneless wiper. It is worthy of wide promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a top view schematic diagram of a segmented wiper strip structure of the present invention;

[0018] Figure 2 This is a cross-sectional view of a segmented wiper strip structure according to the present invention;

[0019] Figure 3 This is a B-B cross-sectional view of a segmented wiper strip structure of the present invention;

[0020] Figure 4 It is a C-C sectional view of a segmented wiper rubber strip structure of the present invention. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments. As Figures 1 to 4 shown, a segmented windshield wiper rubber strip structure according to the present invention includes a windshield wiper rubber strip main body 1, a scraping blade 2 is provided below the windshield wiper rubber strip main body 1, the cross-section of the windshield wiper rubber strip main body 1 is in a king-shaped structure, the cross-section of the scraping blade 2 is in a triangular structure, a flipping bridge 121 is provided between the windshield wiper rubber strip main body 1 and the scraping blade 2, main body deformation adjustment grooves 3 are symmetrically recessed inward on both sides of the windshield wiper rubber strip main body 1, a vertical portion 21 is provided at the bottom of the scraping blade 2, the middle horizontal portion 11 of the windshield wiper rubber strip main body 1, the main column portion 31 between the two side main body deformation adjustment grooves 3, the flipping bridge 121, the scraping blade waist portion 22, and the bottom of the scraping blade 2 are respectively provided with symmetric left second segments, right second segments, left third segments, and right third segments from the middle first segment to both sides; the thickness of the first segment gradually becomes thinner towards the left second segment and the left third segment; the thickness of the first segment gradually becomes thinner towards the right second segment and the right third segment.

[0022] Furthermore, the thicknesses of the middle horizontal portion 11 of the windshield wiper rubber strip main body 1, the main column portion 31 between the two side main body deformation adjustment grooves 3, the flipping bridge 121, the scraping blade waist portion 22, and the first segment, left second segment, right second segment, left third segment, and right third segment at the bottom of the scraping blade 2 become thinner in a stepped manner.

[0023] Furthermore, the thickness of the first segment of the middle horizontal portion 11 of the windshield wiper rubber strip main body 1 is 6.51 mm, the thickness of the second segment is 6.10 mm; the thickness of the third segment is 5.00 mm.

[0024] Furthermore, the thickness of the first segment of the main column portion between the two side main body deformation adjustment grooves is 2.80, the thickness of the second segment is 2.60 mm, and the thickness of the third segment is 2.00 mm.

[0025] Furthermore, the thickness of the first segment of the flipping bridge 121 is 1.10 mm, the thickness of the second segment is 1.00 mm, and the thickness of the third segment is 0.70 mm.

[0026] Furthermore, the thickness of the first segment of the scraping blade waist portion 22 is 1.80 mm, the thickness of the second segment is 1.69 mm, and the thickness of the third segment is 1.20 mm.

[0027] Furthermore, the thickness of the first segment at the bottom of the scraping blade 2 is 0.7 mm, the thickness of the second segment is 0.60 mm, and the thickness of the third segment is 0.3 mm, and the joints between the segments are smoothly transitioned.

[0028] Furthermore, the middle horizontal portion 11 of the windshield wiper rubber strip main body 1, the main column portion 31 between the two side main body deformation adjustment grooves 3, the flipping bridge 121, the scraping blade waist portion 22, and the bottom of the scraping blade 2 are respectively provided with 3 to 10 symmetric segments from the middle first segment to both sides.

[0029] Furthermore, the height of the first vertical portion 21 of the bottom of the scraper blade 2 is 0.1 mm, the height of the second vertical portion 21 is 0.56 mm, and the height of the third vertical portion 21 is 0.71 mm.

[0030] Furthermore, the thickness of the middle horizontal part 11 of the wiper strip body 1, the main column part 31 between the deformation adjustment grooves 3 on both sides of the body, the flip bridge 121, the scraper waist 22, the first section of the bottom of the scraper 2, the left second section, the right second section, the left third section, the first section, the second section and the third section of the right third section are gradually thinner.

[0031] As described above, the present invention has a simple structure. Since the connection area between the middle part of the wiper strip body 1 and the vehicle rocker arm is the area with the greatest force, and the force on both sides of the wiper strip body 1 gradually decreases, the present invention evenly divides the wiper strip body 1 from the middle first section to the two sides into the second section and the third section, and gradually thins the middle horizontal part 11 of the wiper strip body 1, the main column part 31 between the deformation adjustment grooves 3 on both sides, the flip bridge 121, the scraper waist 22, and the bottom of the scraper 2 located in the first section, the second section and the third section, so that the wiper strip body 1 as a whole is subjected to more uniform rocker arm pressure during work, so that the universal multifunctional wiper can well adapt to various models with huge differences in rocker arm pressure, so that the wiper wiper effect is effectively improved, and the life of the universal multifunctional boneless wiper is extended, which is worthy of wide promotion.

[0032] The above description is only the principle and preferred embodiment of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the principle of the present invention, which should also be considered to fall within the scope of protection of the present invention.

Claims

1. A segmented wiper strip structure comprising a wiper strip body, a scraping blade disposed below the wiper strip body, the wiper strip body having a V-shaped cross-section, the scraping blade having a triangular cross-section, a flip bridge disposed between the wiper strip body and the scraping blade, body deformation adjustment grooves symmetrically concavely disposed on both sides of the wiper strip body, and a vertical portion disposed at the bottom of the scraping blade, characterized in that: The middle transverse portion of the wiper rubber strip body, the main column portion between the deformation adjustment grooves of the two main bodies, the flip bridge, the scraper blade waist, and the scraper blade bottom are respectively provided with a left second section, a right second section, a left third section, and a right third section symmetrically from the middle first section to the two sides; the thickness of the first section becomes thinner step by step toward the left second section and the left third section; the thickness of the first section becomes thinner step by step toward the right second section and the right third section; the thickness of the middle transverse portion of the wiper rubber strip body, the main column portion between the deformation adjustment grooves of the two main bodies, the flip bridge, the scraper blade waist, the first section, the left second section, the right second section, the left third section, and the right third section of the scraper blade bottom are thinner in a step-by-step manner; The thickness of the first section of the middle horizontal part of the wiper rubber strip body is 6.51-10.00 mm, the thickness of the second section is 6.10-6.50 mm, and the thickness of the third section is 5.00-6.09 mm. The thickness of the first section of the scraper bottom is 0.7-1.5 mm, the thickness of the second section is 0.60-0.69 mm, and the thickness of the third section is 0.3-0.59 mm, and the connection between the sections is smooth. The wiper rubber strip body has 3 to 10 symmetrical sections on both sides, including the middle horizontal part, the main column part between the deformation adjustment grooves on both sides, the flip bridge, the scraper waist, and the scraper bottom. The height of the first vertical portion of the scraper bottom is 0.1-0.55 mm, the height of the second vertical portion is 0.56-0.7 mm, and the height of the third vertical portion is 0.71-1.5 mm.

2. The segmented wiper strip structure according to claim 1, characterized in that: The thickness of the first section of the main column part between the two side main body deformation adjustment grooves is 2.80~6mm, the thickness of the second section is 2.60~2.79mm, and the thickness of the third section is 2.00~2.59mm.

3. The segmented wiper strip structure according to claim 1, characterized in that: The thickness of the first section of the flip bridge is 1.10-1.50 mm, the thickness of the second section is 1.00-1.09 mm, and the thickness of the third section is 0.70-0.99 mm.

4. The segmented wiper strip structure according to claim 1, characterized in that: The thickness of the first section of the scraper blade waist is 1.80-2.50 mm, the thickness of the second section is 1.69-1.75 mm, and the thickness of the third section is 1.20-1.69 mm.

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