| 摘要 |
<p>Power-driven saw with two adjacent saw blades (33,35,34,36) which are oppositely reciprocated about a common pivot axis (31), each of said saw blades comprising at least one arrangement of saw teeth arranged on a curved path corresponding to a circle about the pivot axis (31) with the arrangements of saw teeth of both saw blades located in equal distances from said pivot axis. Each of said saw blades comprises an elongated pivot section (33,34) with the pivot axis (31) extending through one end portion thereof and further comprises a saw section (35,36) projecting from the other end portion of said pivot section (33,34) to one side and carrying said curved arrangement of saw teeth and in that said saw section comprises two arrangements of saw teeth one at the edge remote of said pivot axis (31) and the other one at the edge nearer to said pivot axis (31). <IMAGE></p> |
