| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a seal structure which prevents an O ring from being caught between a case and an end frame when the end frame is assembled to the case. <P>SOLUTION: An inlay part 52 serving as an annular guide part is provided between an inner peripheral surface 2a of a case 2 and a wall part 41 of an end frame 6, more specifically, the inlay part 52 is provided at an inner side of the case 2 of an O ring part 51. At least a side end part (a tip end part 52c) of the inlay part 52, which is located on the opposite side of the O ring part 51, is formed so as to have a diameter smaller than the outer periphery of the O ring part 51. <P>COPYRIGHT: (C)2012,JPO&INPIT |
