| 摘要 |
<p>1. Device for automatic recovery of play for a clutch control mechanism, incorporating an actuating rod (2) situated between an operating arm (3) of the clutch and a control component (1), this component being capable of causing the said rod to move essentially in longitudinal translation by acting upon a nut (11) mounted on a threaded portion (2c) of the rod provided with a toothed rim (11a) with which a pawl (22) can cooperate actuated at each movement of the rod and capable of causing the nut to turn step by step on the rod, this device being characterised in that it consists of an assembly carried entirely by the actuating rod (2) and in that this assembly incorporates a first spring (15) bearing against a point on the rod (2) and exerting an effect on the pawl (22) which tends to bring the latter into a working position, this effect being transmitted to the pawl through an intermediate component (14) which is stopped by a fixed abutment (25) on an initial position of the travel of the rod (2) starting from its rest position, inhibiting thereafter the effect of the said spring (15) on the pawl (22), the device including, in addition, between the pawl (22) and the intermediate component (14), which consists of a component orientated transversely relative to the axis (20) of the actuating rod (2), able to move along the latter and pushed by the first spring (15) along the direction of the said axis (20), a follower lever (18) is situated for controlling the pawl (22) which, bearing against the nut (11) at a point on the transverse surface (11b) of the latter on the side of the intermediate component (14), can hinge about an axis of articulation (19) orientated transversely and held at an essentially constant distance from the intermediate component (14), between a position in which it causes the pawl (22) to take up its working position and a position in which it allows the latter to return to a rest position under the effect of the said other elastic force, the lever (18) for controlling the pawl (22) being articulated along its axis of hinging (19) on the transverse wall (12b) incorporated in a casing (12) enclosing the nut (11) able to move on the actuating rod (2), and the said lever (18) possesses a first portion located in the gap of variable width (i) separating the said transverse surface (11b) of the nut (11) from the said transverse wall (12b) of the casing (12), this wall being pushed against the intermediate component (14) by a second spring (13) which is less stiff than the first spring (15).</p> |
