| 摘要 |
PURPOSE:To improve the ability of setting by widening the range of angles at which a pressure plate stops through simple constitution, by providing a guide shaft 29 having both ends reduced in external diameter, and a link mechanism composed of a slider using a friction member. CONSTITUTION:To pressure-plate cover 31, guide shaft 29 is fixed and slider 33 fitted in it slidably is coupled with link 34 to constitute a link mechanism. Slider 33 is composed of holder 36 and friction member 37 of rubber fixed inside of holder 36, and its internal diameter d0 should be lesss than diameter D0 of shaft 32. Further, diameter DS of shaft 32 at both ends is made less than D0. This constitution can stop pressure plate 31 at any angle with frictional force generated by member 37. Further, the small-diameter part of shaft 32 has no frictional force and the weight of pressure plate 31 can entirely be used for setting. Thus, the range of angles at which the pressure plate stops can be windend to improve the ability of setting. |
