| 摘要 |
PROBLEM TO BE SOLVED: To secure continuous quick driving workability without increasing capacity of an expansion chamber, while lowering initial exhaust air pressure concerning an exhaust mechanism of a nailing machine mainly to use for building work. SOLUTION: The expansion chamber 21 to discharge compressed air to be exhausted out of a nailing machine main body 1 after decompressing it by a pressure reducing valve 40 and to expand the compressed air to be exhausted is provided on a front stage of the pressure reducing valve 40.
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