Arc-cutting guide for a portable powered hand tool
AssigneeChoon Nang Electrical Appliance Mfy., Ltd.
InventorsSteven Sze Chun Fong, Ping Hay Heun
Life of this patent
Estimating the term…
Abstract
A swing arm has a fixture at one end for mounting a hand tool, and a longitudinally-extending channel including a slot. An elongate slider member is engaged in the channel, and includes a point offset longitudinally from center of the slider member for engagement with a workpiece to define a center about which the swing arm is rotated. A fastener having a head and threaded shank is retained in a recess such that the shank extends through the slot. A threaded knob is engaged with the shank for clamping the slider member in position, and a handle connected to and captively retained with the knob is free to rotate about a handle axis.
Claims6
An arc-cutting guide for a portable powered hand tool the guide comprising:
- a swing arm defining a longitudinally extending channel;
- a longitudinally extending slot in the channel;
- a fixture at one end of the swing arm for mounting the hand tool;
- an elongate slider member engaged in the channel, the slider member including a recess;
- a point offset longitudinally from a center of the slider member for engagement with a workpiece to define a center about which the swing arm is rotated;
- a fastener extending through the slot, the fastener having a head received in the recess;
- a threaded knob engaged and held captive with the fastener, tightening of the knob clamping the swing arm between the knob and the slider member, and
- a handle projecting outwardly from the knob, the handle being captively retained with the knob and free to rotate about a handle axis.
An arc-cutting guide for a portable powered hand tool, the guide comprising:
- a swing arm defining a longitudinally-extending channel;
- a longitudinally extending slot in the channel;
- a fixture at one end of the swing arm for mounting the hand tool;
- an elongate slider member engaged in the channel, the slider member including a longitudinally-extending recess;
- a point offset longitudinally from a center of the slider member for engagement with a workpiece to define a center about which the swing arm is rotated;
- a fastener having a head and a threaded shank, the head being retained in the recess and the shank extending through the slot;
- a threaded knob engaged with the shank, tightening the knob clamping the swing arm between the knob and the slider member, and
- a handle projecting outwardly from the knob, the handle being captively retained with the knob and free to rotate about a handle axis.
Dependencies are inferred from the claim text.