| 摘要 |
PROBLEM TO BE SOLVED: To provide a Bourdon-tube pressure gage capable of preventing detachment from a joint of a Bourdon tube which is made of metal and is fixed to the joint made of a resin. SOLUTION: The Bourdon-tube pressure gage includes a joint 3 which is made of the resin and is attached to a pressure container; and a Bourdon tube 4 which is made of the metal and has a base end fixed to the joint 3. The joint 3 includes a fixing hole 3a, into which the base end of the Bourdon tube 4 is inserted to be fixed by bonding, and a recess part 3m dished in the flat direction Y is formed on the lateral side 3j of the fixation hole 3a. The recess part 3m is formed toward the innermost side of the fixation hole 3a, and at least a portion of an inside area of the fixing hole 3a, where the recess part 3m is formed, is configured wider than the aperture 3e of the fixation hole 3a, which is the insertion port for the Bourdon tube 4, in the flat direction Y. COPYRIGHT: (C)2010,JPO&INPIT
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