A bidirectional driving device, height adjuster and seat with the device

Abstract

The invention discloses a two-way driving device of a height adjuster, which comprises a ratchet, a fixed cover, a blocking piece, a driving plate and a ratchet wheel; Both the drive plate and the fixed cover are connected with the ratchet with the rotating shaft; the non-axis of the block plate is hinged with the offset point of the pawl, and ratchets are provided on both sides of the pawl, and the drive plate is hinged to the pawl; the drive plate The driving rotation of the driving plate drives the pawl to rotate around the bias point and makes the ratchet on one side of the pawl mesh with the ratchet wheel; the return rotation of the drive plate drives the pawl to reversely rotate around the bias point, and the fixed cover is provided with a device for the return of the drive plate. A profiled slot that prevents the ratchet from meshing with the ratchet when turned and not returned to the neutral position. The above-mentioned device is provided with pawls with ratchet teeth on both sides and a special-shaped groove, so as to prevent the noise from the pawls from affecting the user's experience. The invention also discloses a height adjuster comprising the above-mentioned two-way driving device and a seat comprising the above-mentioned height adjuster.

Description

technical field [0001] The present invention relates to the technical field of mechanical design, and more specifically, relates to a bidirectional driving device. In addition, the present invention also relates to a height adjuster comprising the above-mentioned two-way driving device and a seat comprising the above-mentioned height adjuster. Background technique [0002] The lifting function of the car seat can provide a comfortable riding experience for different users. The height adjuster and other components together form a seat lifting mechanism. The height adjuster is used to control the realization of the seat lifting function and maintain the adjusted seat height. With the requirements of environmental protection and energy saving, the market demands height adjusters with small size, light weight and excellent performance. [0003] The height adjuster consists of two parts, the driving part and the locking core. A two-way driving structure of a height adjuster mai...

AI Technical Summary

Problems solved by technology

[0004] However, during the return operation of the above-mentioned two-way drive structure, the ratchet that plays the role of meshing transmission will slide over the ratchet teeth under the action of the ratchet return spring, and there will be sound during the sliding process, and it will affect the position of the ratchet

Some users will mistakenly believe that it is noisy, and the comfort of riding will also decrease, which will affect the user experience

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