A three-stage boneless wiper device

Abstract

The invention discloses a three-segment type framework-free windshield wiper device which comprises a first connecting piece, a second connecting piece, a pair of first decoration wiper brackets, a pair of second decoration wiper brackets, a pair of middle wiper brackets, a pair of small wiper brackets and a windshield wiper strip. The second connecting piece is configured in the first connecting piece and connected with a windshield wiper device rocker arm. The first ends of the first decoration wiper brackets are connected with the two ends of the first connecting piece respectively. The first end of each second decoration wiper bracket is hinged to the second end of the corresponding first decoration wiper bracket. Each middle wiper bracket is located in containing space of the first decoration wiper bracket and the second decoration wiper bracket corresponding to the middle wiper bracket. The middle of each middle wiper bracket is hinged to the hinge position of the first decoration wiper bracket and second decoration wiper bracket corresponding to the middle wiper bracket. The middle of each small wiper bracket is hinged to the corresponding middle wiper bracket. The windshield wiper strip is arranged on the two middle wiper brackets and the two small wiper brackets. The windshield wiper device is free of a lever, namely, a framework, so that the height of the whole windshield wiper device is reduced; wind resistance and wind noise are lowered, and meanwhile the sight of a driver is expanded.

Description

technical field [0001] The invention relates to a wiper device for motor vehicles, in particular to a three-stage boneless wiper device. Background technique [0002] A wiper device for a vehicle such as a motor vehicle includes a wiper arm that is swung by a driving force transmitted from a wiper motor to which electricity is supplied, and a wiper blade that is supported by a distal end portion of the wiper arm and that contacts, for example, a front Wipe surface of windshield. [0003] At present, there are generally two types of wiper devices for vehicles (such as motor vehicles), one is a wiper device with a lever assembly, and the wiper device with a lever assembly includes a plurality of levers that are rotatably connected together. Since the levers are connected in a race, the height of the wiper blade becomes larger. Racing wiper devices thus tend to increase drag and wind noise while receiving wind applied to a moving vehicle, while blocking the driver's view in c...

AI Technical Summary

Problems solved by technology

[0010] The above-mentioned wiper devices without lever components have their own advantages and disadvantages. For example, some decorative wiper frames are made of all plastic parts, which makes their products easy to age and require injection molding. The processing time is long, and the strength is low and easy to damage

Some decorative scrapers use all-metal parts, which also have a long processing cycle and heavy weight. They are formed by precision casting and the molding cycle is also long.

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