| 摘要 |
<p>PURPOSE:To save time of especially disengaging a transmission clutch when cause of an abnormal load is removed, by interlocking a lock member of a sliding member to the transmission clutch. CONSTITUTION:When an overload is applied to a load side O, a ball 13 comes out of a recessed part 11 against urging force of a belleville spring 17, simultaneously a sliding member 16 is also slided, and a ball 21 is pressed externally of an extension hole 20, then a shaft 22 is retracted by a spring 25. Under this condition, the ball 21 is stopped to the inner of a hollowed groove 19, simultaneously its inside is located to a large contoured part 22d of the shaft 22, to hold the sliding member 16 to an unengagement position of the ball 13. At this time, a ball 10 is located to a small contoured part 22a of the shaft 22 and sunk in an extension hole 6b of an intermediate shaft 6, thus transmission of power between a driven gear 9 and the intermediate shaft 6 is disconnected. In case of singly actuating a transmission clutch only, a lock shaft 22 is fully pulled.</p> |
