Table saw guard
OwnerChin-Chin Changinventor
Life of this patent
Estimating the term…
Abstract
A table saw guard has a riving knife, a mounting frame, a blade guard, and a switch. The riving knife has a first positioning slot and a second positioning slot. The mounting frame has a first positioning pin to enter or withdraw from the first positioning slot. The blade guard and the switch are pivotally connected to the mounting frame, and the switch has a second positioning pin. When the switch pivots toward a locking position, the second positioning pin is located in the second positioning slot to position the riving knife with respect to the mounting frame; when the switch pivots toward an unlocking position, the second positioning pin withdraws from the second positioning slot, which allows the first positioning pin to withdraw from the first positioning slot such that the riving knife and the mounting frame are detached.
Claims10
A table saw guard comprising:
- a riving knife having
- a knife body;
- and
- two positioning slots recessed on the knife body at a spaced interval and respectively being a first positioning slot and a second positioning slot;
- a hollow mounting frame having a first positioning pin configured to enter or withdraw from the first positioning slot;
- a bottom opening formed on a bottom of the mounting frame, communicating with the interior space of the mounting frame, and configured to face a saw blade of a table saw;
- and
- an outlet formed on a top of the mounting frame, communicating with the interior space of the mounting frame, and being tube-shaped to be connectable to a dust connector via a pipeline;
- a blade guard pivotally connected to the mounting frame;
- and
- a switch pivotally connected to the mounting frame, configured to pivot between a locking position and an unlocking position, and having
- a second positioning pin configured to enter or withdraw from the second positioning slot;
- wherein when the switch is located at the locking position, the second positioning pin is located in the second positioning slot to position the riving knife with respect to the mounting frame;
- when the switch pivots toward the unlocking position, the second positioning pin withdraws from the second positioning slot, which allows the first positioning pin to withdraw from the first positioning slot so as to detach the riving knife and the mounting frame;
- each one of the two positioning slots extends in a curve and has an opening;
- said openings of the two positioning slots respectively face toward two different directions;
- the riving knife has a positioning recess recessed on the knife body and disposed adjacent to the second positioning slot;
- the switch has
- two limiting holes;
- a switch positioning pin mounted through the two limiting holes, configured to move along the two limiting holes, and configured to enter or withdraw from the positioning recess;
- and
- an elastic unit;
- and
- when the switch pivots toward the locking position or the unlocking position, the switch positioning pin abuts the elastic unit to deform so as to allow the switch positioning pin to enter or withdraw from the positioning recess.
Dependencies are inferred from the claim text.