| 摘要 |
PROBLEM TO BE SOLVED: To make possible simple and easy execution even in a narrow place by the integral molding of a support which supports an operation part or an actuating part of a release wire with the inside of the elbow provided in a bent part of piping. SOLUTION: The piping of the support of the drain plug device is installed inside a pipe, and the operation part or the actuating part of the release wire is installed on and supported by the support. The opening and closing of the drain plug is remotely controlled by the release wire. The drain plug device is provided with an elbow structure in which the support is integrally molded with the interior of the elbow, and the operation part or the actuating part of the release wire is installed on and supported by the support in the narrow space of the piping position. COPYRIGHT: (C)2008,JPO&INPIT
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