| 摘要 |
<p>A pneumatic nailing machine includes a striking cylinder (31) accommodated in a main housing (21) to permit a piston and driver assembly (34) to be moved for driving a nail when compressed air is supplied into the cylinder (31). A valve member (32) is movable relative to the cylinder (31) between an air-supplying position and an air-exhausting position. A winding air channel (4) has an intake port (48) disposed downstream of a head valve zone (232), an outflow port (27) angularlydisplaced from the intake port (48), and a channel body (43, 44) which extends radially from the intake port (48), axially into a mounting shell (22) mounted on the main housing (21), and circumferentially toward the outflow port (27). Compressed air exhausted from the cylinder (31) can expand in the air channel (4) and the flow rate of the compressed air is reduced so as to efficiently attenuate noise.</p> |
