| 摘要 |
A mechanical hammer for sculptors, comprising a body (1) suitable for being handled, a striking element (5) that slidingly engages in the body (1); a tool (6) releasably engaging with a first end of said striking element (5) accessible from the exterior of the body (1); a rotating element (10) that pivotally engages in the body (1) having a first end connected to rotating drive means located at the exterior of the body (1); cooperating means provided at the second end of the striking element (5) and of the rotating element (10), both inside the body (1), for transforming the rotating motion of the rotating element (10) into a reciprocating motion of the striking element (5) under to load through the tool (6). It is possible (7, 7a, 20) to adjust the position of maximum approaching between the striking element (5) and the rotating element (10) and the corresponding mutual matching of the cooperating means, which are in the form of a cam (18) on the striking element (5) or on the rotating element and a plurality of balls (14) for rolling on the rotating element (10) or on the striking element (5). The hammer for sculptors, being mechanical, has not the drawback of the pneumatic hammers and can easily handled and at the same time can be used for roughing out or for finishing the stone.
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