| 摘要 |
PROBLEM TO BE SOLVED: To provide a counter device for a pneumatic tool capable of being easily applied to an existing pneumatic tool inexpensively and having small possibility of erroneous operation.SOLUTION: A counter device 1 is connected to a pneumatic tool 6 by a coupler 3 and is connected to a pressurized gas feed source 12 by a coupler 4. Each time the pneumatic tool 6 is operated, when the gas flowing in a gas conduit 16 between the couplers 3, 4 indicates a flow rate change exceeding a predetermined value, a gas flow rate sensor 17 transmits a signal to a counter 18. When a predetermined count number is attained, sound/voice generation means 20 is operated to inform a worker of it. Simultaneously, indication of a display 19 also inform the worker of completion of work. |
