B - Operations – Transporting – 27 – B
Patent
B - Operations, Transporting
27
B
143/44
B27B 21/00 (2006.01) B23D 49/16 (2006.01)
Patent
CA 1229288
COMBINATION JIG SAW ADJUSTING MECHANISM ABSTRACT OF THE DISCLOSURE A reciprocating jigsaw tool having a plurality of selectible fixed linear plunger and blade motions as well as fully adjustable orbital and manual or auto scrolling saw blade control. A single mode selector is pro- vided to select between the above operational modes. The mode selector includes a cam to selectively limit the oscillatory motion of a pivotally mounted plunger upper swivel bearing carriage assembly thereby directly limiting the degree of orbital plunger motion. The mode selector further includes a gear segment in operative engagement with a rack member which, in turn, engages an integral scrolling interface member of the top-mounted scrolling adjustment knob. The scrolling interface member incorporates an annular ring having a gap therein adapted to inhibit upward travel of the rack which, in turn, inhibits orbital saw operation when the plunger and blade is positioned other than in the cut forwardly position. The scrolling interface further includes locking ridges adapted to engage the rack and to preclude rotation of the scrolling adjustment knob when either the orbital or fixed linear mode is selected.
478608
Emerson Electric Co.
Sim & Mcburney
LandOfFree
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