发明授权
US6139057A Position control apparatus for steering column 有权
转向柱位置控制装置

Position control apparatus for steering column
摘要:
A position control apparatus for an adjustable motor vehicle steering column including a friction clamp, a control shaft rotatable between locked and unlocked positions, a hollow rectangular frame moveable relative to the control shaft when the steering column is adjusted, a first toothed pawl a second toothed pawl, and an elastic bushing resiliently supporting the first and second toothed pawls on the control shaft inside of the rectangular frame. When the control shaft is rotated to its locked position the friction clamp frictionally captures the adjusted position of the steering column. The pawls have gear sectors thereon which are relatively angularly offset by one-half tooth pitch. When the control shaft is rotated to its locked position, the one-half tooth pitch offset assures that at least one of the gear sectors will mesh with a rack gear on the rectangular frame even if the other engages the rack gear peak-to-peak. Each pawl further includes a lug which cooperates with a plain edge of the rectangular frame in immobilizing the pawl when the gear sector thereon is meshed with the rack gear so that the meshed tooth couple between the gear sector and the rack gear reinforces the friction clamp.
公开/授权文献
信息查询
IPC分类:
B 作业;运输
B62 无轨陆用车辆
B62D 机动车;挂车(农用机械或机具的转向机构或在所要求轨道上的引导装置入A01B69/00;车轮,脚轮,车轴,提高车轮的附着力入B60B;车用轮胎,轮胎充气或轮胎的更换入B60C;拖有挂车的牵引车或类似车辆之间的连接入B60D;轨道和道路两用车辆,两栖或可转换的车辆入B60F;悬架装置的配置入B60G;加热、冷却、通风或其他空气处理设备入B60H;车窗,挡风玻璃,非固定车顶,门或类似装置,车辆不用时的护套入B60J;动力装置的布置,辅助驱动装置,传动装置,控制机构,仪表或仪表板入B60K;电动车辆的电力装备或动力装置入B60L;电动车辆的电源线入B60M;其他类目不包含的乘客用设备入B60N;适用于货运或装载特殊货物或物体的入B60P;用于一般车辆信号或照明装置的布置,其安装或支承或者其电路入B60Q;其他类目不包含的车辆,车辆配件或车辆部件入B60R;其他类目不包含的保养,清洗,修理,支承,举升或调试入B60S;制动器布置,制动控制系统或其部件入B60T;气垫车入B60V;摩托车及其所用附件入B62J,B62K;车辆试验入G01M)
B62D1/00 转向控制装置,即用于使车辆改变方向的装置
B62D1/02 .装在车上的
B62D1/16 ..转向柱
B62D1/18 ...挠性的或可调的,如可倾斜的(与转向柱有关的衬垫入B60R21/05)
B62D1/184 ....在选定位置上锁定转向柱的机构
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