| 摘要 |
PROBLEM TO BE SOLVED: To improve a sealing performance in a seal structure utilizing elasticity of a synthetic resin material itself. SOLUTION: In an open edge portion of a resonator body 4, a first sidewall 11 extending along mutual insertion directions of both parts is provided, a first seal face 12 parallel to the insertion direction is provided, and an inclined seal face 13 forming a shape to chop off a corner portion diagonally is provided. In a resonator cover 5, a second sidewall 21 toward an opposite direction of the first sidewall 11 is provided, a second seal face 22 in a face contact with the first seal face 12 is provided, and a step portion 26 having a corner portion 26a in line contact with the inclined seal face 13 and facing the inclined seal face 13 is formed. When both parts are assembled, the corner portion 26a is in line contact with the inclined seal face 13 and the first seal face is in face contact with the second seal face, which forms a double seal. A force to press the first sidewall 11 against the second sidewall 21 is generated by a seal reaction force received by the inclined seal face 13, which enables a high sealing performance to be obtained. COPYRIGHT: (C)2009,JPO&INPIT
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