| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a grommet capable of preventing direct contact of metallic parts with each other to improve mounting precision of a pipe, reducing dimensional precision of concentricity of an upper end part and a lower end part of individual pipes and that of a mounting face and a lower end part of a sensor to facilitate assembly of the pipe, and improving heating property and heat retaining property of a part in the vicinity of the lower end part. <P>SOLUTION: This grommet is a rubber-made annular body, a channel having rectangular cross section is provided toward a central side at the whole periphery of an outer peripheral end face, and a slope having a reverse conical shape whose diameter is contracted downward is formed in a central part of an upper face. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
