Patent ID: 6601305
Filing Date: 2003-08-05
Classification: B27B

Abstract:
A portable circular saw comprising:a base arranged and constructed to contact a workpiece during a cutting operation, a saw unit coupled to the base and being laterally pi pivotable with respect to the base about a lateral pivotal axis, the saw unit comprising a circular saw blade, a guide plate fixedly secured to the base, wherein an arc-shaped guide slot is defined within the guide plate and the guide slot defines a maximum lateral pivotable range of the saw unit with respect to the base, a lock screw slidably disposed within the guide slot, wherein the lock screw is tightened in order to releasably fix the saw unit in position with respect to the base, the lock screw being coupled to the saw unit and pivotable together with the saw unit relative to the base, a first stopper coupled to the saw unit and being pivotable together with the saw unit relative to the base, the first stopper defining a first maximum laterally inclined angle of the saw unit relative to the base, and a pin movably mounted on the guide plate and being movable between at least a first position and a second position, wherein the first stopper contacts the pin when the pin is disposed in the first position, thereby limiting the maximum lateral pivotable range to the first maximum inclined angle and preventing the saw unit from being pivoted to a second maximum inclined angle, and when the pin is disposed in the second position, the saw unit is pivotable past the first maximum inclined angle to the second maximum inclined angle, wherein the second maximum inclined angle is greater than the first maximum inclined angle.