An improved single-motor-driven unlocking and folding mechanism and its application

Abstract

The invention discloses an improved unlocking folding mechanism driven by a single motor. The improved unlocking folding mechanism comprises a driving motor, an unlocking cam fixed to an output shaftof the driving motor, a folding driving cam fixed to the output shaft of the driving motor and a set of stroke control gears arranged on the folding driving cam and coaxially with the folding drivingcam. Before unlocking, the folding driving cam idles relative to the stroke control gears and does not drive the stroke control gears to rotate, and after unlocking, the folding driving cam drives thestroke control gears to rotate; and a sector gear meshes with the stroke control gears and is mounted on an upper connecting plate in a seat backrest, the stroke control gears drive the sector gear to rotate, and the sector gear drives the seat backrest to fold. According to the improved unlocking folding mechanism driven by the single motor, unlocking and folding of a seat can be achieved only requiring the unlocking cam, the folding driving cam, the stroke control gears and the sector gear, and the improved unlocking folding mechanism driven by the single motor has the advantages that mechanism parts are less, transmission relationships are simple, the arrangement of the whole seat is facilitated, and the cost of quality control is reduced.

Description

technical field [0001] The invention relates to the technical field of car seat design, in particular to an improved single-motor unlocking and folding mechanism and its application. Background technique [0002] At present, with the development of the automobile industry and the changes in the automobile market, the demand for seven-seater cars is increasing. The seven-seater cars of the seven-seater models of major automobile manufacturers have been pushed to the market one after another. Among the seven-seater models, the user-friendly functional configuration of the middle and rear seats has become a means for OEMs to attract end consumers under the new normal. Such as the electric folding function of the middle and rear seats. [0003] At present, there are mainly two adjustment methods for the fold-flat function of the middle and rear seats: [0004] 1. Manual adjustment to realize the action of unlocking and laying down. [0005] In the actual use process, manual ...

AI Technical Summary

Problems solved by technology

[0023] One of the technical problems to be solved by the present invention is that the existing single-motor-driven unlocking and folding mechanism has many mechanism parts, the transmission relationship is complicated, and the arrangement on the seat requires a large space, which is not conducive to the arrangement of the whole chair. In order to bring more quality control costs and other problems, it provides an improved single-motor-driven unlocking and folding mechanism with less mechanism parts, simple transmission relationship, which is beneficial to the layout of the whole chair and reduces quality control costs.

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