The invention discloses a safety belt pre-tightening device, a vehicle seat and a vehicle. The safety belt pre-tightening device is installed in an installation pipe in a vehicle and comprises a traction belt, a first locking assembly and a second locking assembly, wherein the first locking assembly and the second locking assembly are arranged on the traction belt. The second locking assembly is arranged on the downstream of the first locking assembly and is separated from the first locking assembly to form an air chamber. The first locking assembly can move downstream and make sliding sealing contact with the mounting pipe, and is locked in the mounting pipe in the upstream direction. The second locking assembly can move downstream and is locked in the mounting pipe in the upstream direction. In the initial state, the first locking assembly and the second locking assembly are locked in the mounting pipe; in the pre-tightening state, the first locking assembly is locked in the mounting pipe, and the second locking assembly moves downstream and drives the traction belt to move downstream. The safety belt pre-tightening device is fixedly arranged in the mounting pipe without additional fasteners, so that the mounting structure of the safety belt pre-tightening device is simplified.
本申请公开了安全带预紧装置、车辆座椅以及车辆。安全带预紧装置安装到车辆中的安装管内,并且包括牵引带以及设置在牵引带上的第一锁止组件和第二锁止组件。第二锁止组件在第一锁止组件下游并与第一锁止组件间隔开而形成气室。第一锁止组件能够向下游运动并与安装管滑动密封接触,而沿上游方向在安装管内锁止。第二锁止组件能够向下游运动,而沿上游方向在安装管内锁止。在初始状态中,第一锁止组件和第二锁止组件在安装管内锁止;在预紧状态中,第一锁止组件在安装管内锁止,第二锁止组件向下游运动并驱动牵引带向下游运动。本申请的安全带预紧装置在安装管内的固定设置无需额外的紧固件,这简化了安全带预紧装置的安装结构。
Safety belt pre-tightening device, vehicle seat and vehicle
安全带预紧装置、车辆座椅以及车辆
2024-11-12
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Safety belt tightening device, safety belt tightening device control method and vehicle
European Patent Office | 2023
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