CN217496070U

CN217496070U - Windscreen wiper adhesive tape

Info

Publication number: CN217496070U
Application number: CN202221690829.5U
Authority: CN
Inventors: 夏宏
Original assignee: Chongqing Fenghai Kunxiang Industry Group Co ltd
Current assignee: Chongqing Fenghai Kunxiang Industry Group Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-09-27
Anticipated expiration: 2032-06-30

Abstract

This scheme relates to a windscreen wiper adhesive tape in auto-parts field comprises the adhesive tape body and scrapes the sword, adhesive tape body top is equipped with the mounting groove that is used for the joint on the windscreen wiper, and the position that the adhesive tape body is in the mounting groove lower extreme is equipped with and blocks the platform, and the border that blocks the platform is plane or outside outstanding curved surface, block the platform and scrape the rubber neck by integrated into one piece between the sword and be connected, this application has cancelled the buffering limit, and windscreen wiper noise problem has obtained the solution.

Description

Windscreen wiper adhesive tape

Technical Field

The application belongs to the technical field of auto-parts, specifically is a windscreen wiper adhesive tape.

Background

In the field of automobile accessories, a windscreen wiper is a standard fitting of an automobile, and is used for brushing and wiping rain spots and dust attached to a windshield of the automobile so as to improve the visibility of a driver and increase the driving safety; at the moment, the windscreen wiper is opened to wipe away rainwater on the windshield, and the front of the vehicle is clear.

The rubber strip is used as one of core parts of the windscreen wiper, is a part directly contacted with a windshield, and structurally comprises a mounting groove 3-1 used for being clamped on a wiper spoke, a buffering edge 3-3 is arranged below the mounting groove 3-1, a section of scraping edge 3-4 is connected below the buffering edge 3-3, firstly, a buffering edge 3-3 is added, a buffering groove 3-2 is formed by the buffering edge 3-3 and the lower edge of the mounting groove 3-1, the buffering groove 3-2 is exposed outside, and when air enters the buffering groove 3-2 in the high-speed driving process, the air forms vortex in the buffering groove 3-2, and large noise is generated.

The buffer edge 3-3 of fig. 3 is formed to be inclined downward in the manufacturing process in order to have a stronger blocking effect, and the top surface of the scraping edge 3-4 is also required to be formed to be inclined, which makes the processing difficult. Meanwhile, due to the inclined modeling, the cost for manufacturing the mold is increased successively; due to noise, the driving experience is greatly influenced negatively.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a wiper rubber strip to solve the problem that the existing wiper has overlarge noise.

In order to reach above-mentioned purpose, the application provides a pair of windscreen wiper adhesive tape comprises the adhesive tape body and scrapes the sword, adhesive tape body top is equipped with and is used for the mounting groove of joint on the windscreen wiper, and the adhesive tape body is equipped with the platform that blocks in the position of mounting groove lower extreme, blocks the border of platform and be plane or the curved surface of outside salient, block the platform and scrape and be connected by integrated into one piece's rubber neck between the sword.

The scheme firstly removes the original buffer edge, the edge of the blocking table is a plane or an outwards protruded curved surface, and no buffer groove exists between the blocking table and the rubber body, so that the condition of air entering does not exist. Therefore, the normal work of the scraping blade is met, and meanwhile, the condition of buffer groove noise does not exist, so that the problem of overlarge noise caused by buffer edges of the existing windscreen wiper is solved.

Furthermore, an included angle of 17-18 degrees is formed between the upper edge of the scraping edge and the lower edge of the blocking table. This results in a large oscillation amplitude of the scraping edge.

Further, the ratio of the depth of the installation groove to the width of the groove of the rubber body is 1: 0.55; the size can be scaled according to the vehicle type needs in equal proportion to satisfy all kinds of motorcycle types and to the requirement of installation intensity, the tolerance upper limit is got rid of to the degree of depth of mounting groove of general kart 0.1mm, 2.25mm is selected to the lower limit 0.05mm, and the kart will be a bit shallow. This also ensures the versatility of the solution.

Further, the width of the cross section of the blocking table is smaller than that of the lower edge of the mounting groove; the width of the interface of the blocking platform is smaller than the width of the lower edge of the mounting groove, the requirement that the whole windscreen wiper rubber strip is provided with a streamline design gradually reduced from the mounting groove to the scraping edge is met, in addition, the blocking platform and the lower edge of the mounting groove are prevented from forming a redundant concave surface, and wind resistance is further avoided.

Further, the cross section of the blocking table is an inverted trapezoidal surface, and the edge of the top of the scraping edge is collinear with the edge of the blocking table. Therefore, a streamline is formed between the blocking platform and the scraping blade, and the wind resistance can be effectively reduced.

Further, the ratio of the section length of the rubber neck to the length of the top of the scraping blade meets the following requirements that 1: 6.9; the rubber neck needs to be bent ceaselessly, and the requirement on the service life can be met by adjusting the ratio according to multiple tests.

Furthermore, the edge of the top surface of the rubber strip body is provided with an inclined surface, and three sections of surfaces with the middle higher than two sides are formed on the top surface. Let the windscreen wiper adhesive tape like this can be at laminating metal spoke in-process, and the adhesive tape is rubber, has deformation, can laminate the spoke with the windscreen wiper adhesive tape is whole through the deformation effect on, can laminate closely very with the spoke in the middle of the windscreen wiper adhesive tape simultaneously.

And finally, the side edge of the section of the scraping blade is a bidirectional arc edge which is close to the inward recess, the side edge of the scraping blade is made into an arc surface, and when the scraping blade swings, the stress of the arc surface is more uniform, so that the durability of the scraping blade is ensured.

Drawings

FIG. 1: is a schematic structural diagram of a wiper rubber strip;

FIG. 2: is a cross-sectional view of the wiper strip of fig. 1;

FIG. 3: is a sectional view of the prior wiper rubber strip mentioned in the background technology.

The reference numbers of the drawings in the specification include: an adhesive tape body 1; a mounting groove 2; a blocking table 3; a rubber neck 4; a scraping edge 5.

Detailed Description

The following is a more detailed description of the present invention with reference to specific embodiments.

Example 1:

a windscreen wiper adhesive tape as shown in fig. 1 and 2 comprises adhesive tape body 1 and scraping blade 5, adhesive tape body 1 top is only equipped with one mounting groove 2 that is used for the joint on the wiper, the adhesive tape body is in 2 lower extremes of mounting groove and is equipped with the cross-section and for falling trapezoidal or square platform 3 that blocks, block platform 3 and scrape and be connected by integrated into one piece's rubber neck 4 between the blade 5, scrape blade 5 for the axial symmetry ' T ' shape structure, rubber neck 4 is connected and is being scraped the symmetry axis position of blade 5.

The edge of the top surface of the rubber strip body 1 is provided with an inclined surface, and three sections of surfaces with the middle higher than two sides are formed on the top surface. Let the windscreen wiper adhesive tape like this can be at laminating metal spoke in-process, the windscreen wiper adhesive tape is rubber, has deformation, can laminate the spoke with the windscreen wiper adhesive tape is whole through the deformation effect on, can laminate closely very with the spoke in the middle of the windscreen wiper adhesive tape simultaneously.

Scrape 5 cross-sectional sides of sword for two-way inside sunken arc limit that is close to, will scrape the side of sword 5 and make the cambered surface, when scraping sword 5 when the swing, the atress of cambered surface is more even, has guaranteed to scrape the durability of sword 5.

Remove original buffering limit, make the boss below the adhesive tape body 1, form and block platform 3, block no longer have unnecessary notch between platform 3 and the rubber body 1, the below adopts rubber neck 4 to connect scrapes sword 5, scrapes the biggest swing radian of 5 both sides of sword and depends on the radian when scraping the sword and blocking the platform contact. The blocking table 3 not only limits the maximum radian of the scraping edge 5, but also cancels the original buffer edge; therefore, the normal work of the scraping blade is met, and meanwhile, no noise condition exists, so that the problem of noise caused by the buffer edge of the existing windscreen wiper is solved.

The upper edge of the scraping edge and the lower edge of the blocking table form an included angle of 17-18 degrees. This results in a large oscillation amplitude of the scraping edge.

The width of the section of the blocking table 3 is smaller than that of the lower edge of the mounting groove 2; the width of the interface of the blocking table 3 is smaller than the width of the lower edge of the mounting groove 2, the whole windscreen wiper rubber strip is firstly designed to have a streamline which is gradually reduced from the mounting groove 2 to the scraping blade 5, and in addition, the blocking table 3 and the lower edge of the mounting groove 2 are prevented from forming redundant concave surfaces, so that wind resistance is further avoided.

Example 2:

as shown in fig. 1 and 2, the structure is basically the same as that of embodiment 1, except that some sizes of the wiper rubber strip are defined; the ratio of the depth of the mounting groove to the height of the adhesive tape body 1 satisfies 1: 0.55; the scheme is based on that the depth dimension of the mounting groove selected by the small car is 2.25mm, and the height is 1.24 mm. For example, the depth of the installation groove is required to be deeper for a passenger car with a large windshield, and the small car is slightly shallower after the installation groove is enlarged in the same proportion. This also ensures the versatility of the solution.

The proportion of the section length of the rubber neck 4 to the top length of the scraping edge 5 satisfies 1: 6.9; the rubber neck 4 needs to be bent ceaselessly, and the requirement on the service life can be met by adjusting the ratio according to multiple tests.

The wiper rubber strip is prepared by mixing the following raw materials in parts by mass: 95-105 parts of natural rubber, 4-6 parts of zinc oxide, 0.5-1.5 parts of stearic acid, 2-5 parts of an anti-aging agent, 10-50 parts of carbon black, 4-10 parts of a softening agent, 1.5-2.5 parts of an accelerator, 0.3-3 parts of a vulcanizing agent, 1-2 parts of a dispersing flowing agent, 1-20 parts of cerium oxide and 1-30 parts of bismuth oxide.

The addition of cerium oxide and bismuth oxide, the two are combined with different molecular chain groups of natural rubber, the molecular chains are mutually crossed, a composite network structure can be formed, the bonding force on the molecular chain layer reaches a very high level, the material performance is reflected, the tension permanent deformation and the compression permanent deformation are simultaneously and greatly reduced, so that after the wiper strip is used for a period of time, the permanent deformation resistance of the wiper strip is strong, the recovery capability after compression/tension is strong, and the service life of the wiper strip is prolonged to about 130 ten thousand from the previous 50 ten thousand times.

The above description is only an example of the present application, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much. It should be pointed out that, for the person skilled in the art, without departing from the structure of the invention, several variants and modifications can be made, which should also be regarded as the scope of protection of the invention, which will not affect the effectiveness of the implementation of the invention and the utility of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A windscreen wiper adhesive tape which characterized in that: the windscreen wiper is characterized by comprising an adhesive tape body and a scraping blade, wherein a mounting groove used for being connected to the windscreen wiper in a clamped mode is formed in the upper portion of the adhesive tape body, a blocking table is arranged at the position, located at the lower end of the mounting groove, of the adhesive tape body, the edge of the blocking table is a plane or a curved surface protruding outwards, and the blocking table is connected with the scraping blade through an integrally formed rubber neck.

2. The wiper strip of claim 1 wherein: the upper edge of the scraping edge and the lower edge of the blocking table form an included angle of 17-18 degrees.

3. The wiper strip of claim 1 wherein: the ratio of the depth of the installation groove to the width of the groove of the rubber body is 1: 0.55.

4. the wiper strip of claim 2 wherein: the width of the cross section of the blocking table is smaller than that of the lower edge of the mounting groove.

5. The wiper strip of claim 4 wherein: the cross section of the blocking table is an inverted trapezoidal surface, and the edge of the top of the scraping edge is collinear with the edge of the blocking table.

6. The wiper strip of claim 5 wherein: the proportion of the section length of the rubber neck to the length of the lower edge of the blocking table meets 1: 6.9.

7. the wiper strip of claim 6 wherein: the edge of the top surface of the rubber strip body is provided with an inclined surface, and three sections of surfaces with the middle higher than two sides are formed on the top surface.

8. The wiper strip of claim 7 wherein: the side edge of the section of the scraping edge is an arc edge which is close to the inward recess in two directions.