Full width windscreen wiper of automobile front window

Abstract

The invention discloses a full width windscreen wiper of an automobile front window. The full width windscreen wiper of the automobile front window comprises an upper wiper, a lower wiper, rotating shafts and a driving motor, and the driving motor drives the upper wiper and the lower wiper to conduct cleaning operation through the rotating shafts. The full width windscreen wiper of the automobile front window is characterized in that the lower wiper comprises an elastic expansion device; the elastic expansion device comprises a slide-way board with a track and a spring, the lower wiper is movably connected with the rotating shafts, and one end of the lower wiper is pressed on the track of the slide-way board through the elastic force; a wiper arm of the lower wiper is provided with a radial channel, a sliding block is arranged in the radial channel and connected with the bottom end of the radial channel through the spring, and the rotating shafts are fixedly connected with the sliding block; the track is a concave groove and connected with the lower wiper through a roller. The full width windscreen wiper of the automobile front window has the advantages that the cleaning on dead angles of the automobile front windscreen is achieved, and requirements of various situations can be adapted through modifying the curve of the track in the slide-way board.

Description

technical field [0001] The invention relates to an automobile accessory, in particular to a full-width windshield wiper for an automobile front window. 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 telescopi...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned patent uses a series of devices such as oil pump and oil cylinder to realize the retractable wiper, which is costly and complicated to control

[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, reducing the effect of the wiper

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