Guard system for a power saw

摘要

A modular guard system for a power saw includes a riving knife mounted to the saw rearwardly of the blade and having first and second notches with openings facing away from each other. A blade guard assembly is releasably mounted on the riving knife and configured to cover the blade. The blade guard assembly includes a mounting portion configured to receive a top portion of the riving knife having the first and second notches and a release mechanism provided in the mounting portion and having a spring member for engaging the first notch and a latch member connected to the spring member for engaging the second notch. The latch member exerts a force on the spring member to cooperatively hold the first and second notches between the spring member and the latch member to retain the riving knife in the mounting portion.

主权项

1. A modular guard system for a power saw of the type which has a table top and a rotatable circular saw blade, the table top having an opening through which the saw blade can extend, said guard system comprising:
a riving knife for being mounted on the saw rearwardly of the blade, said riving knife having spaced first and second notches each having an opening facing away from each other; and a blade guard assembly that is releasably mounted on said riving knife for covering the saw blade, said blade guard assembly comprising:
a mounting portion receiving a top portion of said riving knife, the top portion having said first and second notches; anda release mechanism provided in said mounting portion, said release mechanism having a spring member positioned in engagement with said first notch and a latch member positioned in engagement with said second notch, said latch member being connected to said spring member; wherein said latch member includes a handle, and an axle pin is secured to said mounting portion and positioned in engagement with said second notch in said top portion of said riving knife, said axle pin defining a pivot axis of said latch member such that said latch member is pivotally mounted on said axle pin so as to be pivotable with respect to the mounting portion and about the axle pin between a locked position and a released position, wherein said spring member includes a first end portion and a second end portion, said first end portion being attached to said latch member, said second end portion being positioned in engagement with said first notch, and wherein moving said handle of said latch member into said locked position exerts a force on said spring member to cooperatively hold said first and second notches between said spring member and said axle pin of said latch member to retain said riving knife in said mounting portion, and moving said handle into said released position removes said force exerted on said spring member to release said riving knife from said mounting portion.