| 摘要 |
A locking device for a tilt steering wheel in which a first bracket is mounted on an end of a steering column secured on a vehicle body, a second bracket rotatably supporting a steering wheel shaft is pivotally connected to the first bracket and a wheel drive shaft is connected to the steering shaft by a universal joint. The locking device comprises an adjusting plate for adjusting the tilt angle of the steering wheel and pivotally supported by the second bracket, an operating member supported by the adjusting plate and capable of being projected against a spring toward a rotatable portion of the second bracket, a detent mechanism composed of depressions disposed in arcuately spaced apart positions in the rotatable portion and balls placed in resilient engagement with the depressions to maintain the rotational position of the adjusting plate, a plurality of pin holes bored in one of the brackets to receive therein first pins in spaced relation of the adjusting plate, and other pin holes bored in the other of the pair of brackets to receive therein second pins placed in abutment with the first pins by means of springs, whereby the second pins are entered into one of the pin holes for the first pins to lock the relative rotational position of the pair of brackets, the movement of the operating member in an axial direction causes the second pin to be moved away by the first pin to allow the relative rotation of the pair of brackets, and the adjusting plate may be rotated to set a desired relative rotational position.
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