The invention discloses a pre-tightening force limiting type safety belt retractor which comprises a retractor frame, a winding drum assembly, a pre-tightening assembly and a fixing assembly. The pre-tightening assembly comprises a bent pipe, a gas generator, a transmission gear and a rack. A gas generator is arranged at the head of the bent pipe, and a mounting notch is formed in the bent pipe; the transmission gear is located in the installation notch and is in transmission connection with the winding drum assembly. The rack is arranged in the bent pipe in a sliding mode, the rack is provided with an easy-to-break plastic part used for fixing the initial position of the rack, and the easy-to-break plastic part can fix the initial position of the rack. The method has the advantages that the production cost can be reduced, the initial position of the rack is guaranteed, and the gear head is prevented from being stuck.
本发明公开了一种预紧限力式安全带卷收器,包括:卷收器框架、卷筒组件、预紧组件和固定组件;所述预紧组件包括:弯管、气体发生器、传动齿轮和齿条;所述弯管头部设有气体发生器,所述弯管上设有安装缺口;所述传动齿轮位于所述安装缺口位置中并传动连接所述卷筒组件;所述齿条可滑动的设于所述弯管中,所述齿条设有用于固定齿条初始位置的易溃塑料件,所述易溃塑料件可对齿条的初始位置进行固定;本发明能降低生产成本,保证齿条初始位置以及避免齿轮头部卡死的优点。
Pre-tightening force limiting type safety belt retractor
一种预紧限力式安全带卷收器
2023-06-23
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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