Sheet member holding apparatus

Details Sheet member holding apparatus Sheet member holding apparatus

2005-04-26

2005-04-26

Walsh, Donald P. (Department: 3653)

Sheet feeding or delivering

Feeding

By means to convey sheet

C101S378000

Reexamination Certificate

active

06883801

ABSTRACT:
A sheet member holding apparatus which holds a winding direction end portion of a sheet member that is wound around a rotary body. Centrifugal force generated by rotation of the rotary body is efficiently utilized to hold the end portion securely and prevent looseness or the like of the sheet member, because the holding apparatus is designed such that the expression {(μ1+μ2)×(L2/L1)×m}>c×r×t is satisfied. L1is distance from a fulcrum to a clamp section, L2is distance from the fulcrum to a center of gravity, m is mass of a plate of the apparatus per unit length in the rotary body's axial direction, t is thickness and c is density of the sheet member, and μ1and μ2are coefficients of friction between the sheet member and, respectively, the clamp section and the rotary body.

REFERENCES:
patent: 4250810 (1981-02-01), Fowler et al.
patent: 4660825 (1987-04-01), Umezawa
patent: 5218379 (1993-06-01), Schmitt et al.
patent: 6003442 (1999-12-01), Solomon et al.
patent: 6435091 (2002-08-01), Halup et al.
patent: 0 881 074 (1998-12-01), None
patent: 2000-112142 (2000-04-01), None

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