Reversing switch assembly for an electric assist steering system |
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| 申请号 | EP88111839.2 | 申请日 | 1988-07-22 | 公开(公告)号 | EP0301432A3 | 公开(公告)日 | 1989-07-26 |
| 申请人 | TRW INC.; | 发明人 | Hammerle, Frederick A; Mallett, James A; Wiciel, Richard; | ||||
| 摘要 | A switch for controlling the current to an electric motor (24) includes contacts (192) which are actuatable to permit electrical power to be applied to the motor in a direction depending upon the direction of relative rotation between the first and second parts (36, 38). A portion of the contacts are carried by a rocker arm (184) pivotally mounted against one of the parts with cooperating contacts mounted to the one part. Actuation of the contacts (192) is controlled by an associated pivoting member (212) located radially outward of the first axis and pivotable about a second axis, transversely to the first axis. The pivoting member (212) carries a roller (242) slidably mounted to an end thereof and resiliently biased against the rocker arm (184). The roller is of sufficient diameter to contact the rocker arm at two locations when the switch is in a neutral condition with all the electrical contacts open. Relative rotation between the first and second parts causes the pivot member to pivot which, in turn, causes the rocker arm to pivot and close a set of contacts. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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