Method of bending wood materials and an apparatus for...

Details Method of bending wood materials and an apparatus for... Method of bending wood materials and an apparatus for...

2006-08-01

2006-08-01

Miller, Bena (Department: 3725)

Woodworking

Process

Mechanical cutting or shaping

C144S259000, C144S261000

Reexamination Certificate

active

07082975

ABSTRACT:
The method of bending wood materials inserts cylindrical or board shaped wood material of uniform lateral cross-section into a bending template shaping channel via a driving mechanism to bend the wood material in the shaping channel. Further, the bending method of this invention applies pressure to the front end of the wood material via a braking mechanism to limit its movement in the shaping channel and prevent tension fracture on the stretched side of the curved wood material. Wood material, which is pushed from its aft end and movement limited at its front end, is compressed to control the amount of stretching of the extended outer periphery of the wood material undergoing bending and prevent tension fracture.

REFERENCES:
patent: 8511 (1851-11-01), Johnston
patent: 638477 (1899-12-01), Scheid
patent: 655889 (1900-08-01), Ordway
patent: 3521553 (1970-07-01), Werner et al.
patent: 3913474 (1975-10-01), Lewis
patent: 4759206 (1988-07-01), Kaneko
patent: 4875353 (1989-10-01), Kaneko

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