| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily remove a cap while enabling an injection nozzle to be certainly enclosed with the cap. Ž<P>SOLUTION: An injection head and a cap part are positioned by installing a guide member in either of the injection head or the cap part and slidingly contacting the guide member to the other. The cap part is detached from and attached to the injection head in the state of keeping it positioned by the guide member. The sealing face of the cap part is kept to be formed in tilting against the injection head. Thereby, since the cap part can be installed in the state of keeping it positioned against the injection head, the cap part becomes able to be installed in the exact position on the injection head. If separating the cap part from the injection head, the sealing face can be separated gradually along with the tilting because of the sealing face tilting against the injection head. Thereby, the cap part becomes able to be removed easily from the injection head. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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