| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic pressure setter capable of injecting appropriate pneumatic pressure with notification, displaying set pneumatic pressure prior to the notification of the upper limit of the appropriate pneumatic pressure, and comfortably performing filling work. SOLUTION: This pneumatic pressure setter disposed in an air injection pump is provided with display means 7 such as an LED lit by a battery 8 with a piston member 5 upwardly moved when the pressure injected to the pneumatic pressure setter reaches a set prescribed value, and a release means moving an O-ring 11 to a large-diameter part 10 and releasing the air in the injection hole from a piston hole 14 via a dust seal 15, when it becomes appropriate pneumatic pressure slightly higher than the set pneumatic pressure. Even if adopting a low-cost pneumatic pump, this constitution can inject the appropriate pneumatic pressure with the notification by a discharge sound produced when releasing the air more than the upper limit of the appropriate pneumatic pressure, which is slightly higher than the set pneumatic pressure, and visually display the set pneumatic pressure prior to the notification of the upper limit of the appropriate pneumatic pressure so as to comfortably performing the filling work without being astonished at a sudden notification. COPYRIGHT: (C)2003,JPO
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