Woodworking – Shaping machine – Vertical spindle
Patent
1997-02-18
1998-03-10
Bray, W. Donald
Woodworking
Shaping machine
Vertical spindle
1441545, 144371, 409182, B27C 500
Patent
active
057250367
ABSTRACT:
A plunge router constructed for mounting beneath a work table has a base adapted to be connected to a work table and defining a central opening, a router head assembly comprising a drive motor, a drive shaft, a collet and a housing, a plunge guide assembly supporting the router head assembly for movement toward and away from the base, a retracted position adjusting mechanism coacting between the base and the head assembly for blocking movement of the head assembly to a first default position from a second, adjusted retracted position and comprising a threaded force transmitting member fixed to the base and projecting toward the head assembly, an abutment element projecting from the head assembly transverse to the direction of extent of the threaded member and an adjustment member threaded to the force transmitting member and engagable with the abutment element to adjustably change the head assembly second retracted position. The head assembly also includes a second head assembly abutment element. The plunge router of the present invention further comprises a precision adjustment mechanism for moving the head assembly a precise distance from the second position to precisely position a router bit relative to the base opening. The adjustment mechanism comprises a first positioner fixed to the base and extending to the second abutment element, a second positioner engaging the second abutment element and the first positioner and a drive transmission coupling the first and second positioners. The drive transmission operates to shift the second positioner along the first positioner to change the distance between the base and the second abutment element. The second positioner comprises a manually actuatable structure disposed remote from the second abutment element and operating the drive transmission to incrementally shift the head assembly for precisely positioning a router bit.
REFERENCES:
patent: 1509387 (1924-09-01), Witt
patent: 2353202 (1944-07-01), Tautz
patent: 4537234 (1985-08-01), Onsrud
patent: 4919176 (1990-04-01), Gachet et al.
patent: 5094575 (1992-03-01), Kieser et al.
patent: 5139061 (1992-08-01), Nielson
patent: 5146965 (1992-09-01), Gibson
patent: 5191921 (1993-03-01), McCurry
patent: 5222842 (1993-06-01), Schweikert et al.
patent: 5297905 (1994-03-01), Schmidt et al.
patent: 5375636 (1994-12-01), Bosten et al.
Bosch Power Tools product guide, 1995, pp. 70-71.
Eagle America woodworking master catalog #61A, 1996, p. 11.
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