Seat height adjuster

Abstract

A height regulator for a seat belongs to an automobile seat component, which comprises a first case which is provided with a first cavity, a second case which is connected with a side plate of the seat basin and is provided with a second cavity and a third axle hole, a first axle core a second axle core and a big roller which are arranged between the first cavity and the second cavity, a fan-shaped gear block which is connected with a seat cushion of the seat as well as a return spring and a wrench which are separately arranged at the outer side of the cover of the first case. The regulator has the advantages of small volume, simple structure and convenient installation; only one height regulator is needed on each seat, which can save usage cost; the movement has the good flexibility and the firm locking; as friction is used for driving and no space and gears exist between components, the operation is soft, flexible and energy-saving and the regulatory accuracy can be ensured; as the scope of the reciprocating motions of a wrench is small, the use space of the seat can be effectively increased; the free connection with any seat can be realized and the connection is simple; the height regulator for the seat of the invention has the wide application scope.

Description

technical field [0001] The invention relates to a vehicle seat height adjuster which is installed between the seat frame and the side plate of the seat basin and can properly adjust the seat height, and belongs to the vehicle seat accessories. Background technique [0002] The conventional vehicle seat height adjustment device is arranged between the upper guide rail and the seat cushion constituting the seat sliding device, a small-diameter pinion is installed on the operating shaft, and a large-diameter pinion meshed with the pinion is mounted on the operating shaft. An operation lever is attached to the sector gear, and the height of the seat is adjusted by rotating the pinion gear through the sector gear by operating the operation lever up and down. This vehicle seat height adjustment device has a brake drum that prevents the vertical movement of the lifting mechanism. When the operating lever is operated, it is not braked, but when a load is applied from the seat cushio...

AI Technical Summary

Problems solved by technology

The problems in the above-mentioned publications are as follows: firstly, using the principle of mechanical gear transmission to realize the lifting action not only has a complex structure and many parts, but also requires at least two height adjustment devices to be installed on one seat, and the cost of use is high; secondly, Using worm gear transmission, the speed ratio is large, the adjustment speed is slow and the operation is complicated; moreover, there are installation gaps between the parts, resulting in poor adjustment accuracy

The above-mentioned height adjustment device operated by handwheel has problems: 1. Handwheel operation is used, and the hand feeling is poor; 2. One-way positioning is realized through the combination of the internal gear and the dial block, and the locking firmness is poor; 3. In order to To ensure the adjustment accuracy, the processing requirements for the parts are high, the manufacturing is difficult, and it is difficult to ensure the rigidity

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