| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To stabilize the operating performance by constantly keeping the space or opposed attitude between the braking force generation part and braking force receiving part of an electromagnetic brake regardless of the fluctuation of the tip part of a camshaft. <P>SOLUTION: A magnetic induction member 22 and electromagnetic coil 25 that are the braking force generation part of a hysteresis brake 20 are fixed to a non-rotating member, and a hysteresis ring 26 and annular plate 33 that is the braking force receiving part of the hysteresis brake 20 are supported on the magnetic induction member 22 through bearings 34 and 35. A recessed part 37 is formed in the annular plate 33, a connecting pin 53 is protrusively provided on the intermediate rotator 18 of an assembling angle operating mechanism 4, and the tip of the pin 53 is fitted to the recessed part 37 through a rubber bush 38. The fluctuation of the intermediate rotor 18 is absorbed by the rubber bush 38, and the space between the magnetic induction member 22 and the hysteresis ring 26 is kept by the bearings 34 and 35. <P>COPYRIGHT: (C)2004,JPO</p> |
