| 摘要 |
PROBLEM TO BE SOLVED: To realize a small, lightweight, and inexpensive structure capable of detecting the rotating speed of an input shaft 11b. SOLUTION: Numerous recessed portions 40 and 40 are formed on a loading nut 27a screwed to the input shaft 11b in order to transmit load between the input shaft 11b and a disk 2B at an input side. A portion organized by these recessed portions 40 and 40 is set to be a detected portion for detecting rotating speed, and a detecting portion of a sensor 41 supported on an inner face of a casing 5 is faced to the detected portion. Consequently, independent components are not necessary in the structure, and this structure is applicable when a hydraulic pushing unit 10a is used. COPYRIGHT: (C)2004,JPO
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