Bobbin holder

Details Bobbin holder Bobbin holder

1994-06-27

1995-08-08

Stodola, Daniel P.

Winding, tensioning, or guiding

Support for a strand material holder

For bobbins

B65H 4902

Patent

active

054391857

ABSTRACT:
A bobbin holder wherein a roving withdrawing-tension is maintained constant by constituting a braking-torque (balanced with a bobbin-rotating-torque) working on a bobbin with a frictional force derived from the weight of a roving bobbin, with employing a sliding-contact bearing system in view of the fact that both the bobbin-rotating-torque and the load of the roving bobbin are proportional to the radius of the roving bobbin, while the braking-torque can be variably adjusted by altering the bore-diameter of a bearing and/or the coefficient of friction thereof by combining replaceable members. The basic arrangement of the bobbin holder comprises a small bore (10H) which is a bearing bore of a pivot housing (101) provided on the fixing portion side of the bobbin holder (BH), and a pivot (606) which is a pivot member for supporting the weight of a rotatable portion including the roving bobbin (Rb) in cooperation with the peripheral portion of the small bore (10H), the pivot housing (101) being composed of, for example, two bisected cylindrical halves each adapted to be replaced and combined with another one.

REFERENCES:
patent: 3877659 (1975-04-01), Takata
patent: 4015797 (1977-04-01), Tsukumo
patent: 4052021 (1977-10-01), Tsukumo
patent: 4111381 (1978-09-01), Kitamura
patent: 4511102 (1985-04-01), Tsukumo et al.

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