Transmission structure for glass lifter

Abstract

A transmission structure for a glass lifter comprises a long rotating arm, two short rotating arms and a connecting piece, wherein the long rotating arm and the two short rotating arms are connected in a fork-arm type, and the connecting piece comprises an integrated spline body and a circular shaft piece located in the middle of the spline body, the spline body and the circular shaft piece are coaxially arranged, and the two ends of the spline body respectively form a transmission fit with the inner spline grooves provided at the ends of the two short rotating arms, and the circular shaft piece is movably installed in a through hole provided in the middle of the long rotating arm.

Description

Technical Field

[0001] The invention relates to the field of automobile parts, and in particular to a transmission structure for a glass lifter. Background Art

[0002] With the development of the automobile manufacturing industry, automobile manufacturers will promise consumers a certain warranty period. This requires that automobile parts can reach the specified service life. Since automobile window lifters are not repairable, there are very high requirements for the stability and service life of window lifters. Some traditional mechanism models or processes can no longer meet the requirements of automobile manufacturers for the above accessories.

[0003] In the prior art, the door glass and the lifting mechanism are connected by screw penetration, which has an important defect: the connection strength between the door glass and the lifting mechanism is not enough, which makes the door glass easy to loosen.

[0004] Take the fan-shaped gear glass lifter for automobile doors as an example. In the prior art, the connection structure between the lifting arm and the balance arm is spot welded. The process is as follows: at the spot welding position, a few convex points are generally punched out by a stamping process, and then welded with a spot welder. However, the connection performance of this connection method is not stable enough. According to the market feedback from after-sales service of the product, this connection often has desoldering, tearing, etc., which causes the entire lifter system to fail to work. Moreover, during the production process, the inspectors cannot detect the quality problems of all products. They can only tear this part to test the bonding strength by testing the first and last parts. This actually increases the cost. Therefore, the accessory manufacturers must think about how to find new mechanisms or processes to solve the above-mentioned mechanism failure problems that have occurred. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a transmission structure for a glass lifter:

[0006] A transmission structure for a glass lifter comprises a long rotating arm, two short rotating arms and a connecting piece, wherein the long rotating arm and the two short rotating arms are connected in a fork-arm type, the connecting piece comprises an integrated spline body and a circular shaft piece located in the middle of the spline body, the spline body and the circular shaft piece are coaxially arranged, the two ends of the spline body respectively form a transmission fit with the inner spline grooves provided at the ends of the two short rotating arms, and the circular shaft piece is movably installed in a through hole provided in the middle of the long rotating arm.

[0007] Preferably, both end surfaces of the circular shaft piece are provided with a magnetic material layer, the two short rotating arms are made of ferrous metal material, and the circular shaft piece and the two short rotating arms respectively form a magnetic fit to prevent the short rotating arms from falling off.

[0008] Preferably, the two ends of the spline body are riveted to the inner spline grooves provided at the ends of the two short rotating arms respectively.

[0009] fixed.

[0010] Preferably, both side outer end surfaces of the spline body are provided with axially extending flanges, and the flanges are used to form outward-turned flanging edges after being struck, and the flanging edges form a limiting fit with the short rotating arm.

[0011] Preferably, the flange is an arc-shaped sheet structure, and a plurality of flanges are provided and circumferentially distributed on the inner circle of the spline body.

[0012] Preferably, a raised connecting column is provided in the middle of the outer end surfaces on both sides of the spline body, and the outer end of the connecting column is fixedly connected to an arc-shaped semicircular block, the arc-shaped surface of the arc-shaped semicircular block protrudes on one side of the outer end surface of the spline body, the arc-shaped surface of the arc-shaped semicircular block is located on the outside of the flange, and the outer edge of the arc-shaped surface cooperates with the flange.

[0013] The present invention has the following beneficial effects: the spline body and the circular shaft piece of the product are an integrated structure, thereby greatly reducing the required parts assembly steps. In addition, the integrated structure also improves the structural stability of the product, thereby improving the accuracy of glass lifting and lowering. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 is a schematic diagram of the assembly of Example 1.

[0015] FIG2 is an internal schematic diagram of Example 1.

[0016] FIG. 3 is a schematic diagram of a connector of Example 1.

[0017] FIG4 is a schematic diagram of the structure of the connector of Example 2. FIG5 is a schematic diagram of the cross-section of the connector of Example 2.

[0018] 1. Long rotating arm; 2. Short rotating arm; 3. Connector; 4. Spline body; 5. Round shaft; 6. Flange;

[0019] 7. Connecting column; 8. Arc-shaped semicircular block. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with Figures 1-5 and Examples 1-2.

[0021] Embodiment 1: A transmission structure for a glass lifter, comprising a long rotating arm 1, two short rotating arms 2 and a connecting member 3, wherein the long rotating arm 1 and the two short rotating arms 2 are connected in a fork-arm manner, and the connecting member 3 comprises an integral spline body 4 and a circular shaft piece 5 located in the middle of the spline body 4, wherein the spline body 4 and the circular shaft piece 5 are coaxially arranged, and the two ends of the spline body 4 are respectively fixedly riveted with the inner spline grooves provided at the ends of the two short rotating arms 2, and the circular shaft piece 5 is movably installed in a through hole provided in the middle of the long rotating arm 1.

[0022] Embodiment 2: A transmission structure for a glass lifter, comprising a long rotating arm 1, two short rotating arms 2 and a connecting member 3, wherein the long rotating arm 1 and the two short rotating arms 2 are connected in a fork-arm manner, and the connecting member 3 comprises an integral spline body 4 and a circular shaft piece 5 located in the middle of the spline body 4, wherein the spline body 4 and the circular shaft piece 5 are coaxially arranged, and the two ends of the spline body 4 respectively form a transmission fit with the inner spline grooves provided at the ends of the two short rotating arms 2, and the circular shaft piece 5 is movably installed in a through hole provided in the middle of the long rotating arm 1.

[0023] The outer end faces on both sides of the spline body 4 are provided with axially extending flanges 6, and the flanges 6 are arc-shaped sheet structures. The flanges 6 are provided in multiples and are circumferentially distributed on the inner circle of the spline body 4. The flanges 6 form outward-turned flanges after being knocked, and the flanges and the short rotating arm 2 form a fixed fit. A protruding connecting column 7 is provided in the middle of the outer end faces on both sides of the spline body 4. The outer end of the connecting column 7 is fixedly connected to the arc-shaped semicircular block 8, and the arc surface of the arc-shaped semicircular block 8 protrudes on one side of the outer end face of the spline body 4. The arc surface of the arc-shaped semicircular block 8 is located on the outside of the flange 6, and the outer edge of the arc surface cooperates with the flange 6. The connecting column 7 and the arc-shaped semicircular block 8 in this product are an integrated structure. The arc-shaped semicircular block 8 includes an arc surface and an outer plane. The outer plane of the arc-shaped semicircular block 8 is a plane structure, which is convenient for force.

[0024] Operation principle: When external force strikes the outer end face of the arc-shaped semicircular block 8, the arc-shaped semicircular block 8 overcomes the connecting column 7 and continues to move inward, so that the arc-shaped surface contacts the flange 6. When the flange 6 receives the extrusion force of the arc-shaped surface, it expands outward to form a flange, and the flange forms a limit fit for the short rotating arm 2. In addition, the semicircular block will deform under the action of the strike and tend to be flat, and the part that expands outward is located outside the flange to form a new layer of flange, thereby improving the structural stability of the product.

[0025] Embodiment 3: A transmission structure for a glass lifter, comprising a long rotating arm 1, two short rotating arms 2 and a connecting member 3, wherein the long rotating arm 1 and the two short rotating arms 2 are connected in a fork-arm type, and the connecting member 3 comprises an integral spline body 4 and a circular shaft piece 5 located in the middle of the spline body 4, wherein the spline body 4 and the circular shaft piece 5 are coaxially arranged, and the two ends of the spline body 4 respectively form a riveted transmission match with the inner spline grooves provided at the ends of the two short rotating arms 2, and the circular shaft piece 5 is movably installed in the through hole provided in the middle of the long rotating arm 1. Both end surfaces of the circular shaft piece 5 are provided with a magnetic material layer, and the circular shaft piece 5 can also be made of magnetic material as a whole, and the two short rotating arms 2 are made of iron metal material or other magnetic metal, and the circular shaft piece 5 respectively forms a magnetic attraction match with the two short rotating arms 2, thereby preventing the short rotating arms 2 from falling off.

[0026] Obviously, the above embodiments of the present invention are merely examples for illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to exhaust all implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. A transmission structure for a glass lifter, comprising a long rotating arm (1), two short rotating arms (2) and a connecting member (3), wherein the long rotating arm (1) and the two short rotating arms (2) are connected in a fork arm type, and characterized in that: The connecting member (3) comprises an integrated spline body (4) and a circular shaft piece (5) located in the middle of the spline body (4); the spline body (4) and the circular shaft piece (5) are coaxially arranged; the two ends of the spline body (4) respectively form a transmission fit with the inner spline grooves provided at the ends of the two short rotating arms (2); the circular shaft piece (5) is movably installed in a through hole provided in the middle of the long rotating arm (1); both end surfaces of the circular shaft piece (5) are provided with a magnetic material layer; the two short rotating arms (2) are made of ferrous metal material; the circular shaft piece (5) respectively forms a magnetic fit with the two short rotating arms (2); the outer end surfaces on both sides of the spline body (4) Each of the spline bodies (4) is provided with an axially extending flange (6), the flange (6) being used to form an outwardly turned flange after being struck, and the flange and the short rotating arm (2) form a limit fit; the flange (6) is an arc-shaped sheet structure, and the flange (6) is provided with a plurality of flanges and distributed circumferentially on the inner circle of the spline body (4); a protruding connecting column (7) is provided in the middle of the outer end surfaces on both sides of the spline body (4), and the outer end of the connecting column (7) is fixedly connected to an arc-shaped semicircular block (8), the arc-shaped surface of the arc-shaped semicircular block (8) protrudes on one side of the outer end surface of the spline body (4), the arc-shaped surface of the arc-shaped semicircular block (8) is located on the outer side of the flange (6), and the outer edge of the arc-shaped surface matches the flange (6).

2. A transmission structure for a glass lifter according to claim 1, characterized in that: The two ends of the spline body (4) are respectively riveted and fixed to the inner spline grooves provided at the ends of the two short rotating arms (2).

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