초록 ▼

A dust collection port for a circular saw is formed on the upper rear end of a blade guard. A spring biased door pivotally moved between a closed position and an open position is provided over the port. The guard includes exit ribs and return ribs in the region of the port where the ribs direct the

A dust collection port for a circular saw is formed on the upper rear end of a blade guard. A spring biased door pivotally moved between a closed position and an open position is provided over the port. The guard includes exit ribs and return ribs in the region of the port where the ribs direct the flow of the dust formed by the saw blade. The door includes ribs on the underside surface to secure a hose in the port when the door is in the open position. When the door is in the open position, dust flows through cavity formed by the guard into the exit ribs and into a hose inserted into the port. In the closed position, the dust flows through the exit ribs and into the return ribs to exit through the open lower end of the guard.

대표청구항 ▼

[ What is claimed:] [1.] A saw comprising:a casing;a motor having a rotatable shaft wherein the motor is supported in the casing;a blade removably connected to the shaft;a guard surrounding an upper portion of the blade, the guard being connected to the casing and having an upper end, a lower end, a

[ What is claimed:] [1.] A saw comprising:a casing;a motor having a rotatable shaft wherein the motor is supported in the casing;a blade removably connected to the shaft;a guard surrounding an upper portion of the blade, the guard being connected to the casing and having an upper end, a lower end, a front end and a rear end;a port positioned on the upper end of the guard towards the rear end;a first set of ribs formed within the guard proximate the port;a second set of ribs formed within the guard proximate the port; anda door movably connected to the guard to provide a closure to the port, the door including a rib on an underside of the door to engage with a hose inserted into the port;wherein dust generated by the blade during operation of the saw exits through the first set of ribs and through the port where the door is in an open position and moves through the first set of ribs and second set of ribs and exits through the lower end of the guard when the door is in a closed position.