| 摘要 |
<p>This device is intended for a gearbox comprising an unsynchronised gear and at least one gear fitted with a synchroniser, which are engaged by means of sliding crossheads (21, 22, 23) driven by a control member (38) coupled in translational movement only to a locking member (25, 26). The control member (38) pivots in opposite directions for the movement of the unsynchronised gear and the movement of the gear fitted with a synchroniser. A return spring (46) is mounted on the sliding rod (1) carrying the crosshead by which the latter gear is moved and tends to displace it to the point where a notch (42) on the corresponding arm (40) of the crosshead engages against the control finger and the synchroniser is brought into action. <IMAGE></p> |
