| 摘要 |
<p>A saw comprising:a base assembly (102, 104) connected to a mounting portion (110); a motor unit (118) connected to a motor support (208) which is pivotally mounted on the mounting portion (110) to allow the motor unit (118) to pivot towards or away from the base assembly (2, 4) to perform chop cuts, the motor unit (118) having an output drive spindle (289) upon which a circular saw blade (120) can be rigidly mounted to be rotationally driven by the motor unit (118); at least one rearward pivotal guard (232) pivotally mounted on the motor unit (118) which can pivot from a first position, where it surrounds at least a portion of the lower edge of a saw blade (120) when mounted on the spindle (48), to a second retracted position where the portion of the lower edge of the saw blade (28) is exposed; and characterised in that there is further provided a pivotal guard actuating mechanism which moves the at least one rearward pivotal guard (232) from its first enclosed position to its second retracted position when the motor unit (38) is pivoted towards the base assembly (102, 104).</p> |
