| 摘要 |
A percussion power tool apparatus 10 includes a body 11 relative to which an impacting tool is moved to effect an impacting operation, the apparatus 10 further including an operating member 16 by means of which an operating load is applied in an operating direction X to the apparatus 10, a support structure 14 for the operating member 16 including a piston 26 received in a cylinder 25, the operating load acting to move the piston 26 inwardly of the cylinder 25 whilst such movement is resisted by fluid pressure in the cylinder 25 at one side 27 of the piston 26, relative movement between the piston 26 and the cylinder 25 being permitted in response to vibrations arising in the body 11 and/or impacting tool, by controlling fluid flow between the one side 27 of the piston and a pressurised fluid support system 15. |
