Guard for portable circular saws

Details Guard for portable circular saws Guard for portable circular saws

1994-01-04

1995-03-14

Bray, W. Donald

Cutlery

Cutting tools

Saw

144251R, B27B 900

Patent

active

053967062

ABSTRACT:
A portable, circular saw is disclosed. It includes a saw blade selectively rotatable about an axis of rotation to a define a working plane normal to such axis of rotation. The saw also includes an arcuate outer guard fixedly mounted about one side of the blade, and an inner guard having a central opening concentric of the axis of rotation. The purpose of the central opening is to permit the inner guard to be rotatably mounted about an opposite side of the blade. Also attached to the inner guard is a bulbous member that includes a leading edge that is adjacent to the cutting path of blade vis-a-vis a wooden member. Such wooden member generates a force on the inner guard as the former makes contact therewith and wherein the inner guard undergoes rotation about the axis of rotation. The bulbous member aids in the occurrence of such rotation by the fact that it substantially increases the engaging extent of the inner guard by a factor of at least 2 whereby jamming of rotation of the inner guard is prevented irrespective of position of the wooden member with respect to the inner guard.

REFERENCES:
patent: 3701369 (1972-10-01), Gronke et al.

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