Vehicle seat lifting and lowering mechanism

Abstract

The invention relates to a lifting device of an automobile seat, which comprises an outer framework connected with a seat framework. A front lifting assembly and a rear lifting assembly are connected with the outer framework, one end of the front lifting assembly and one end of the rear lifting assembly are hinged with the outer framework, the other ends are connected with a front adjusting axle and a rear adjusting axle, a front guiding groove and a rear guiding groove are arranged on the outer framework, a front adjusting toothed bar and a rear adjusting toothed bar are hinged with the outer framework, the front adjusting axle and the rear adjusting axle penetrate the front guiding groove and the rear guiding groove and are meshed with the front adjusting toothed bar and the rear adjusting toothed bar, and a lifting unlocking piece is arranged between the front adjusting toothed bar and the rear adjusting toothed bar. The device has the advantages that because a single lifting unlocking piece is used, the operational space is obviously reduced, the structure is simple, and the operation is flexible and comfortable. In addition, a tension spring is used for the adjusting toothed bar, to ensure the adjusting toothed bar to be always in stressed state, thereby the fit clearance between the adjusting toothed bar and the adjusting axle is eliminated, the manufacture difficulty for the parts is decreased, and the manufacture cost is reduced.

Description

technical field [0001] The invention relates to a car seat, in particular to a lifting device for a car seat. Background technique [0002] Generally, this type of product is adjusted on both sides of the seat, requiring two operating handles, such as the Chinese patent CN2211933Y, the handles shake, the consistency of the handle height is poor, and the processing requirements for the corresponding matching parts are relatively high. The indoor space occupied is large. There are also many parts used, the corresponding cost will be higher, and the space occupied will be larger, causing inconvenient operation. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an automobile seat lifting device capable of reducing space, simple in structure, simple in action and flexible in operation. [0004] In order to overcome the defects in the background technology, the technical solution adopted by the present invention to sol...

AI Technical Summary

Problems solved by technology

[0002] Generally, this type of product is adjusted on both sides of the seat, requiring two operating handles, such as the Chinese patent CN2211933Y, the handles shake, the consistency of the handle height is poor, and the processing requirements for the corresponding matching parts are relatively high. The indoor space occupied is large

There are also many parts used, the corresponding cost will be higher, and the space occupied will be larger, causing inconvenient operation

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