Patent ID: 6892618

Claim:
A circular sawing machine, comprising: a base; a saw seat movable relative to the base; and a link mechanism pivotally mounted between the base and the saw seat, so that the saw seat is linearly movable relative to the base, the link mechanism has a symmetrical structure so that the saw seat can be moved linearly relative to the base by linear movement of the link mechanism, the link mechanism including a positioning seat secured on the base, two symmetrically opposite first links each having a first end mounted on the positioning seat, two symmetrically opposite second links each having a first end pivotally mounted on a second end of a respective one of the two first links, and two symmetrically opposite third links each having a first end pivotally mounted on a second end of a respective one of the two second links and a second end pivotally mounted on a connecting seat which is mounted on the saw seat, wherein: the two first links are arranged in a substantially V-shaped manner; the two second links are arranged in a substantially V-shaped manner; the two third links are arranged in a substantially V-shaped manner; and the connecting seat is substantially V-shaped.