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A car windshield wiper device

A windshield and wiper technology, which is applied in vehicle maintenance, vehicle cleaning, transportation and packaging, etc. It can solve the problems of low control accuracy, reduced wiper effect, and unfavorable use of the rotating shaft, so as to avoid head-to-head collision and reasonable structure , low cost effect

Inactive Publication Date: 2016-05-25
王越胜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned patent uses a series of devices such as oil pumps and oil cylinders to realize the retractable wiper, which is costly and has low control accuracy.
[0005]In addition, because the rotating shaft needs to switch between positive and negative rotation, too rigid switching is not good for the use of the rotating shaft, and rigid switching will also bring noise and vibration
[0006] Secondly, after the wiper wipes the rain, if it returns directly, the water and other dirt carried on it will return to the windshield, causing secondary pollution and reducing the effect of the wiper.

Method used

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  • A car windshield wiper device
  • A car windshield wiper device
  • A car windshield wiper device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1-4 Shown, a kind of windshield wiper device of automobile comprises upper wiper 1, lower wiper 2, wiper rotating shaft 3 and drive motor 5, and driving motor 5 drives upper wiper 1 and lower wiper 2 to carry out cleaning operation through wiper rotating shaft 3, its characteristic The reason is that the lower wiper 2 also includes a diamond-shaped telescopic mechanism. The diamond-shaped telescopic mechanism includes a strip-shaped bracket 21, the tail end of the strip-shaped bracket 21 is fixedly connected with the wiper shaft 3 through a keyway structure, and a propulsion drum 28, The sliding ejector rod 27 that has a long-pitch thread fit with the propulsion drum 28, the track plate 26 fixed on the front end of the sliding ejector rod 27 and has a concave track inside for adjusting the length of the diamond-shaped telescopic frame, the fixed frame 25, the diamond-shaped The telescoping frame 24 and the wiper sliding block 23 are provided with a gear...

Embodiment 2

[0039] Such as Figure 7 As shown, on the basis of Embodiment 1, a hard spring 31 is provided at the middle position of the wiper shaft 3 .

[0040] The beneficial effect of this embodiment is that: the hard spring can provide a certain amount of cushioning to avoid head-to-head collisions between mechanism parts when failure occurs.

Embodiment 3

[0042] Such as Figure 5 , 6 As shown, on the basis of Embodiment 1, the drive motor 5 and the wiper shaft 3 are meshed through a pair of incomplete gears 6 with completely opposite motion directions. Stages of pause and drive. Two gears at different positions on each wiper rotating shaft 3 mesh with two incomplete gears 6 respectively. The reassembly method adjusts the phase difference of the two incomplete gears 6 .

[0043] The beneficial effect of this embodiment is that: the incomplete gear 6 provides a short stay of the wiper during operation, which facilitates the separation of rainwater on the wiper and avoids secondary pollution of the windshield. In addition, the spline-connected incomplete gears can facilitate the adjustment of the mating angle, so that the meshing angle can be adjusted according to the user's needs.

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PUM

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Abstract

The invention discloses a car windscreen wiper device. The wiper device comprises an upper wiper, a lower wiper, a rotating shaft and a drive motor, wherein the drive motor drives the upper wiper and the lower wiper to carry out cleaning operation by virtue of a rotating shaft. The wiper device is characterized in that the lower wiper also comprises a rhombic telescoping mechanism, the rhombic telescoping mechanism comprises a strip-shaped bracket, and the tail end of the strip-shaped bracket is fixedly connected with the rotating shaft; along the radial direction of strip-shaped bracket, the strip-shaped bracket is successively provided with a propelling rotating drum, a slippage ejector rod, a track board, a support frame, a rhombic telescoping frame and a wiper slippage block; the slippage ejector rod is in long-pitch threaded fit with the propelling rotating drum; the track board is fixedly arranged on the front end of the slippage ejector rod, the inner side of the track board is provided with an indent track and the track board is used for adjusting the length of the rhombic telescoping frame; the root of the propelling rotating drum is provided with a gear, and the gear is engaged with another fixed angle gear. The car windscreen wiper device has the beneficial effects that the clearing of the dead angle for a car front windscreen is realized, and the car windscreen wiper device is applicable to windshields with different shapes by virtue of changing an orbital curve on the track board.

Description

technical field [0001] The invention relates to an automobile accessory, in particular to an automobile windshield wiper device. Background technique [0002] Traditional car wipers usually do a standard fan-shaped movement, but the front windshield of a car is not a standard fan-shaped structure. For a rectangular windshield, the upper right corner is the dead corner of the wiper movement, which cannot be reached. [0003] The invention patent with the Chinese patent number "200720148149.X" discloses an "automatic retractable car wiper", which includes a wiper and a control switch. The wiper includes a wiper handle, a wiper rod and a wiper head. The control switch can control the movement of the wiper. The wiper telescopic control device is included, and the wiper telescopic control device is arranged between the wiper handle and the wiper rod, and the wiper rod and the wiper head are expanded and contracted together by controlling the wiper telescopic control device throug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60S1/18B60S1/26B60S1/38
CPCB60S1/18B60S1/26B60S1/38
Inventor 郭浣华章启迪郭允申郭苣华
Owner 王越胜
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