Woodworking – Planer – Adjustable work carrier
Patent
1999-11-12
2000-10-24
Bray, W. Donald
Woodworking
Planer
Adjustable work carrier
1441171, B27C 100
Patent
active
061351776
ABSTRACT:
A wood planing machine includes a machine housing with two upright side walls, and a cutter unit mounted between the side walls to extend in a transverse direction. A workpiece support bed is movably disposed in the machine housing between the side walls and below the cutter unit. The bed is movable uprightly relative to the cutter unit so as to define a workpiece passage therebetween. A holding seat is suspended in the machine housing below the bed and between the side walls. The holding seat includes a tubular body formed with an upright passage therethrough, and a radial pinion-mounting hole in communication with the passage. A height adjustment mechanism includes an upright coupling member secured to a bottom side of the bed, and a vertical rack that extends between upper and lower ends of the coupling member. The coupling member extends slidably through the passage of the holding seat. A drive shaft has a first coupling end mounted rotatably on the tubular body and extending across the pinion-mounting hole. A turning wheel unit is mounted on the machine housing and is coupled to a second coupling end of the drive shaft. A pinion is disposed in the pinion-mounting hole and is fixed on the first coupling end of the drive shaft for meshing with the vertical rack.
REFERENCES:
patent: 2804107 (1957-08-01), Taylor
patent: 3067788 (1962-12-01), Eschenburg
patent: 3718168 (1973-02-01), Berends
patent: 4456042 (1984-06-01), Clark
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