| 摘要 |
A handle assembly for a reciprocating hammer tool comprises a handle for gripping, a guide rod, and an elongate aperture which slidably engages the guide rod to ensure that the handle assembly is aligned with the hammer. The handle assembly also comprises an air filled chamber bounded by a rubber membrane and disposed in a recess in the hammer housing. The air filled chamber is adapted to damp vibration during use of the reciprocating hammer. An engaging member formed integrally with handle is disposed adjacent the rubber membrane. The engaging member can move from a position in which the engaging member is inserted into the recess and fully compresses the air chamber, to a position in which the handle is pulled upwardly until the guide rod abuts the bottom edge of the elongate aperture. In this later position, the air chamber is placed under minimum compression.
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