| 摘要 |
PROBLEM TO BE SOLVED: To provide a silencer capable of reducing the exhaust sound of operating gas from a rock drill to reduce the noise of the rock drill and maintaining easiness in handling the rock drill. SOLUTION: The silencer 3 for reducing the exhaust sound of exhaust gas of the rock drill 1 operating a rock drilling part 13 for drilling a drilled rock 51, with the operating gas F and exhausting the operating gas F as the exhaust gas G from an exhaust part 14 after operation comprises: a connecting part 34 connected to the exhaust part; a flexible exhaust inflow tube 33 through which the exhaust gas exhausted from the exhaust part flows; and a silencing part 31 introducing the exhaust gas from the exhaust inflow tube to flow through and reducing exhaust sound. COPYRIGHT: (C)2009,JPO&INPIT
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