| 摘要 |
<p>A versatile rotary saw that can be used as a high-branch-pruning saw, etc., employs a split annular internally toothed saw disk having internal teeth on its internal circumference. A pair of openable holders 3, 3 support the periphery of the split annular two-piece or two-legs saw disk 4 and maintains it in an annular form when the holders 3, 3 are closed. An object A is cut with the internal teeth B by rotating the saw disk 4 which is maintained in an annular shape by being held by the holders along its periphery. The rotatable saw disk 4 is capable of stopping at a prescribed position in the holder 3. The holders are openable, each holding one of the split annular saw disk parts 4a, 4b. This facilitates the placing of the object A inside the annular saw disk 4. <IMAGE></p> |
