Woodworking – Process – Including monitoring of operation
Patent
1993-09-20
1995-03-21
Bray, W. Donald
Woodworking
Process
Including monitoring of operation
82118, 82129, 91167R, 91519, 144209R, 144365, 36447407, B27B 100
Patent
active
053987411
ABSTRACT:
A method and apparatus for rotary-cutting a timber to peel off a veneer by a cutting knife from the outer periphery of a timber while rotating the timber around its longitudinal axis. The timber is gripped at its two end faces by means of chucking pawls which are driven in rotation. The chucking pawls comprise a plurality of chucks which are different in radial position. The chucks grip the timber at the end faces thereof adjacent to the outer peripheral surface of the timber, and as the timber is cut by the knife and reduced in diameter so that the knife comes close to a presently outermost chuck, the outermost chuck is retracted axially away from the end face of the timber, and the next outermost chuck continues to grip the timber adjacent to the presently outer peripheral surface of the timber. For this reason, the gripping force by the chuck pawls, resisting the cutting force moment, can be made small, and the timber gripping is made reliable.
REFERENCES:
patent: 3044511 (1962-07-01), Wieckman et al.
patent: 3052272 (1962-09-01), Yock
patent: 3073363 (1963-01-01), Lofstedt
patent: 3132673 (1964-05-01), Bamford
patent: 3139004 (1964-06-01), Haumann
patent: 3198226 (1965-08-01), Haumann
patent: 3221787 (1965-12-01), Hitt
patent: 3672416 (1972-06-01), Reed
patent: 5018561 (1991-05-01), Shimosaka et al.
Banno Kenji
Kamiya Shinji
Kondo Isao
Naito Osamu
Narita Mitsumasa
Bray W. Donald
Kabushiki Kaisha Taihei Seisakusho
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