| 摘要 |
PURPOSE:To increase a supply interval of lubricating oil, by filling an oil containing member in a sleeve, which envelops a coil spring wound on input and output side barrel parts, in such a manner as to be contacted with the coil spring. CONSTITUTION:If an electric current is conducted to a solenoid 7, an operator piece 8 is separated from a sleeve 6 to cause a condition the sleeve 6 can be freely rotated, and a coil spring 5 is tightened to couple both input and output side barrel parts 3 and 4, then a turning effect of an input gear 2 is transmitted to an output shaft 1. An oil containing member 11 of felt or sponge or the like is filled in the sleeve 6 in such a manner as to be contacted with the spring 5, and lubricating oil is impregnated to this member 11. An oil filler hole 12 for filling the lubricating oil to the member 11 is formed to said sleeve 6. |
