Band sheet coiling tension applying apparatus and endless belts for the band sheet coiling tension applying apparatus, and an endless belt lubricant for the band sheet coiling tension applying apparatus
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United States of America Patent
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Dec 27, 2005
Grant Date -
Jan 8, 2004
app pub date -
Jun 11, 2003
filing date -
Jul 2, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
It is an object of this invention to eliminate the necessity of using pulleys which will bring about cost increase, trouble and reduction of service life, and give rise to the positional irregularity of the coil edge. Two sets of endless belts 1 are disposed one above the other, each set of endless belts being laterally arranged side by side. Pressure applying members 2 and 3 which hold each the endless belts 1 in a state that the endless belts freely circulate in an oval shape state, press the inner surfaces 1a of the endless belts 1, and are passed through the inner part of the endless belts 1. Each pressure applying member 2 (3) includes at least a belt pressing part 21 (31) which has a linear shaped side surface for directly pressing the inner surfaces 1a of the endless belts, and belt reversing parts 23 (33) being arcuate in cross section. A coefficient of friction of an outer surface 1b of each the endless belt 1 is larger than that of the inner surface 1a thereof to thereby generate a tension in the slit band sheet 'a'.
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