Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1984-06-29
1985-06-18
Christian, Leonard D.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
242 718, 242199, G03B 104, G11B 1532
Patent
active
045237271
ABSTRACT:
A tape spool adapted for mounting on and rotation relative to a cylindrical pin extending perpendicularly from a first wall toward a parallel second wall defining an enclosure and adapted to engage both of the walls and resist movement toward either, including a first flange adjacent the first wall, a second flange adjacent the second wall, a hub interconnecting the flanges and providing a cylindrical winding surface, a bore through the first flange and into the hub which closely but freely surrounds the pin, a tubular collar interposed between the first wall and the first flange to support the first flange out of contact with the first wall, which collar has an inner diameter allowing free passage of the pin and a thin wall to reduce the area of contact between the collar and the first wall. A wear-button protrusion extends beyond the second flange coaxial with the hub bore to contact the second wall, and a spring is interposed between the spool and the protrusion for biasing the protrusion toward the second wall and the spool toward the first wall so that axial movement of the spool relative to the pin is resisted.
REFERENCES:
patent: 3692255 (1972-09-01), Von Behren
patent: 4289282 (1981-09-01), Kohno
patent: 4352469 (1982-10-01), Huck
patent: 4457473 (1984-07-01), Mroz et al.
patent: 4473194 (1984-09-01), Kashimura
U.S. Ser. No. 626,138 patent appln. filed 6/29/84--"Anti-Friction and Non-Oscillating Spool for Belt Driven Cartridge", copending and commonly-assigned.
Anderson David W.
Christian Leonard D.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Smith James A.
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