| 摘要 |
PROBLEM TO BE SOLVED: To use an air duster by simple operation without dropping a pressure in an accumulator to solve the conventional problem of troublesome operation in a structure of operating two change-over valves for preventing the drop in pressure in the accumulator for supplying compressed air to a body when using the air duster in a compressed-air-driven nailing machine with an air duster function for blowing wood chips, dust or the like around a nailed region. SOLUTION: An open/close valve 12 is provided in a vent path 25a sectioned by a check valve 11 on the upstream of the accumulator 8. The compressed air is supplied from a compressed air supply source to the accumulator 8 through the check valve 11 when the open/close valve 12 is closed. The compressed air is blown from an outlet 30 provided on the vent path 25a while preventing a back stream from the accumulator 8 by the check valve 11 when the open/close valve 12 is opened. COPYRIGHT: (C)2010,JPO&INPIT
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