The invention provides a stay wire transmission mechanism, an automobile seat and an automobile. The stay wire transmission mechanism comprises a brake cable wheel with a transmission shaft, two stay wires wound on the brake cable wheel in the opposite directions and stay wire tensioning units arranged on the two sides of the brake cable wheel respectively, and the stay wire tensioning units on the sides are connected with the stay wires on the corresponding sides. The stay wire tensioning unit comprises a tensioning wheel arranged on the transmission shaft in a sleeving mode and a first elastic piece arranged on the transmission shaft in a sleeving mode, and the first elastic piece is connected between the transmission shaft and the tensioning wheel and has pretightening force. The tensioning wheel is provided with a limiting part abutting against the brake cable wheel, the limiting part is used for limiting the tensioning wheel to rotate relative to the brake cable wheel in the set direction, and the first elastic piece releases energy and can drive the tensioning wheel to rotate relative to the transmission shaft in the set direction so as to tension the stay wire. According to the stay wire transmission mechanism, the effect of automatically tensioning the stay wire can be achieved, and the phenomenon of motion lag caused by looseness of the stay wire is effectively avoided.
本发明提供一种拉线传动机构、汽车座椅及汽车,本发明的拉线传动机构包括具有传动轴的闸线轮,沿相反方向分别缠绕在闸线轮上的两根拉线,以及在闸线轮的两侧分别设置的拉线张紧单元,各侧拉线张紧单元与对应侧的拉线相连。拉线张紧单元包括套设于传动轴上的张紧轮,以及套设在传动轴上的第一弹性件,第一弹性件连接在传动轴与张紧轮之间,并具有预紧力。张紧轮上设有与闸线轮抵接的限定部,所述限定部用于限定所述张紧轮沿设定方向相对于所述闸线轮转动,第一弹性件释能能够驱使张紧轮相对于传动轴沿所述设定方向转动,以张紧拉线。本发明的拉线传动机构能够达到拉线自动拉紧的效果,有效避免因拉线松弛出现运动滞后现象。
Stay wire transmission mechanism, automobile seat and automobile
拉线传动机构、汽车座椅及汽车
2023-06-30
Patent
Electronic Resource
Chinese
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