| 摘要 |
An impact device, incorporating power drive means having a resilient drive element for generating successive ram impacts against a tool by reaction of the resilient drive element against the device frame, incorporates resilient bias means, interposed between the frame and the tool, to continuously transmit bias force from frame to tool acting to hold the tool firmly against a workpiece during operation, while resiliently suspending the frame for free dynamic motion clear of motion limiting stops, thereby eliminating spurious tool and frame motions and directing the impact energy of the ram to more efficiently and effectively accomplish impact work.
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