Back to results
US 5,191,921 AGranted
Adjustable depth of cut stop mechanism for a plunge type router
AssigneeRyobi Motor Products Corp.
InventorRonald C. McCurry
Life of this patent
Estimating the term…
Abstract
A plunge type router including a mechanism for setting the depth of cut of the router. The mechanism is a compact and self-contained assembly which provides for fine adjustment, locking and quick release, all at a single location on the tool.
Claims6
A plunge type router comprising:
- a motor housing with a drive motor secured therein, said drive motor having a shaft extending outwardly from the lower end of said motor housing and adapted to have a cutting tool secured thereto;
- a base plate displaceable substantially vertically relative said motor housing;
- means for judging the displacement of said base plate relative said motor housing;
- abutment means mounted on said base plate;
- and
- depth stop means mounted on said motor housing for cooperating with said abutment means to limit the relative displacement of said base plate toward said motor housing, said depth stop means including:
- a stop bar;
- means for supporting said stop bar on said motor housing for vertical displacement in interfering relationship with said abutment means;
- a toothed rack on said stop bar;
- a pinion gear;
- a shaft having first and second ends with said pinion gear secured to said shaft first end;
- a knob secured to said shaft second end;
- means for selectively engaging and disengaging said rack and said pinion gear;
- means for rotating said pinion gear to adjust the vertical displacement of said stop bar when said rack and said pinion gear are engaged;
- and
- lock means surrounding said shaft between said pinion gear and said knob for selectively locking said stop bar in a desired position on said motor housing.
13 more elements
Dependencies are inferred from the claim text.