| 摘要 |
<p>An object of the present invention is to improve operability at the time of introducing a sealing material around a nut. A recess 67 is formed in a connection surface of a housing. A nut 52 is inserted into the recess 67 and fixed to the housing in a state exposed on the connection surface. A sealing material is introduced into the recess 67, and the outer peripheral surface of the nut 52 is coated with the sealing material. The recess 67 of the housing includes a first surface 71 arranged to face the outer peripheral surface of the nut 52 while forming an introduction space 74 for the sealing material between itself and the outer peripheral surface of the nut 52, a second surface 72 arranged to project radially outwardly from the opening edge of the first surface 71 and a third surface 73 arranged from the outer end of the second surface 72 to the connection surface in a direction crossing a projecting direction of the second surface 72.</p> |
