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公开(公告)号：US6164581A
公开(公告)日：2000-12-26
申请号：US240741
申请日：1999-01-29
CPC分类号： B60R22/40 , B60R2022/402
摘要： A seat belt retractor (22) having an inertial sensor to initiate lockup of the retractor, the inertial sensor including a first housing portion (102) having an actuating arm mounting member (120). The retractor including a first pin (126) cantilevered from the mounting member (120); an activation arm (130) rotationally supported upon the first pin (126), the activation arm (130), when activated, movable into engagement with a ratchet wheel (80), a pendulous vehicle sensor subassembly (150) mounted upon the first housing portion (102), the subassembly (150) and the first housing portion (102) including a support mechanism to rotatably support the sensor subassembly thereon. The sensor subassembly (150) further including a weighted member (152) having a platform for supporting a movable inertial weight (154), the inertial weight movable on the platform in response to deceleration to which the retractor is subjected; a movable arm (156) supported by the weighted member and including a sensing arm (240) having a tip (202) resting upon the inertial weight (154), the movable arm cantilever supported relative to the weighted member, wherein movement of the movable arm causes movement of the sensing arm thereby causing a change in the elevation of the activation arm thereby placing the retractor in a pre-lock mode.
摘要翻译： 一种具有惯性传感器以启动牵开器锁定的安全带卷收器（22），所述惯性传感器包括具有致动臂安装构件（120）的第一壳体部分（102）。 牵开器包括从安装构件（120）悬臂的第一销（126）; 旋转地支撑在所述第一销（126）上的致动臂（130），所述致动臂（130）在被启动时可移动地与棘轮（80）接合，所述下摆车辆传感器子组件（150）安装在所述第一壳体 部分（102），子组件（150）和第一壳体部分（102）包括支撑机构，以将传感器子组件可旋转地支撑在其上。 所述传感器子组件（150）还包括具有用于支撑可动惯性重物（154）的平台的加权构件（152），所述惯性重量响应于所述牵开器受到的减速而在所述平台上移动; 由所述加重构件支撑并且包括具有搁置在所述惯性重物（154）上的尖端（202）的感测臂（240）的可移动臂（156），所述可动臂悬臂相对于所述加重构件被支撑， 臂引起感测臂的移动，从而引起致动臂的高度的改变，从而将牵开器置于预锁定模式。
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