Method and apparatus for braking a bobbin chuck and for releasin

Details Method and apparatus for braking a bobbin chuck and for releasin Method and apparatus for braking a bobbin chuck and for releasin

1975-09-26

1977-07-19

Aegerter, Richard E.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 18DD, 242 464, B65H 6308

Patent

active

040364461

ABSTRACT:
The bobbin chuck is provided with a pneumatically operated bobbin tube holding means and is arranged to be pivoted against a brake shoe to be braked to a standstill. The brake shoe is pivotally mounted about a remote axis and is movable radially of this axis when engaged by the rotating bobbin chuck. The brake shoe has a push-off piston which closes off a pneumatic connection from a pressurized chamber in the brake shoe and the bobbin tube holding means as the brake shoe is pivoted under the braking momentum generated by the bobbin chuck during braking. After braking and disappearance of the braking momentum, the pressure in the pressure chamber causes the brake shoe to pivot in the opposite direction and thus opens the pneumatic connection to the bobbin tube holding means. The tube is then released.

REFERENCES:
patent: 1743758 (1930-01-01), Cobb
patent: 2464024 (1949-03-01), Carter et al.
patent: 2705111 (1955-03-01), Bruestle
patent: 3352316 (1967-11-01), Zahn
patent: 3495781 (1970-02-01), Graf et al.
patent: 3841574 (1974-10-01), Lenk

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