| 摘要 |
<p>A miter saw (10) is provided having a support arm (14) that is pivotally mounted to a base (12) for adjustment of a pivot angle, the saw (10) including a detent mechanism to provide pivot stops at common bevel angles, such as at 45 DEG L, 0 DEG (vertical), and 45 DEG R. The detent mechanism includes a step-shaped, arcuate detent block (70) mounted to the support arm (14) in an adjustable manner to permit the accurate setting of the block (70) in a home position. In an embodiment, a pair of set screws (90,92) acts against opposite ends of the detent block (70), permitting precise adjustment in either direction. An axially movable detent pin (76) is mounted to the base (12) to contact against stepped surfaces (74AB,74BC,74AD) of the block (70). The arm (14) is free to pivot within a bevel angle range defined by one of the surfaces. Steps between surfaces act as a pivot stops, abutting the pin (76) at a corresponding predetermined angle of the arm (14). <IMAGE></p> |
