Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1979-07-30
1980-09-23
Gilreath, Stanley N.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
B65H 5454, B65H 5474
Patent
active
042238498
ABSTRACT:
An improved clamping chuck for use in a thread winding device wherein a bobbin carrier is removably mounted and held on an expandable chucking spindle by means of swingable, elongated clamping elements which are distributed about the outer circumferential mantle of the chucking spindle and move radially outwardly and inwardly of the mantle surface through openings defining each clamping position. The improvement comprises a combination of these special clamping elements with means to apply two torque-producing forces causing each clamping element to swing into its clamping position outwardly of the mantle, preferably under a spring tensioned force, and another force transmitting means to counteract the torque-producing forces to return the clamping elements into their retracted or release position below the mantle surface in order to change bobbin carriers. In the preferred embodiment, the counteracting force transmitting means is a compressed air operated annular piston ring which is slidably mounted about the chuck in an annular interspace between the spindle and a mantle sleeve so as to engage the clamping elements which are mounted in common cages formed in the annular interspace, using a self-contained arrangement within the spindle for delivering the compressed air to the cylinder operating the piston ring.
REFERENCES:
patent: 683865 (1901-10-01), Skofsrud
patent: 2192358 (1940-03-01), Lieber
patent: 2682924 (1954-07-01), Lomazzo et al.
patent: 2734691 (1956-02-01), Godat
patent: 2922592 (1960-01-01), Kaltenbach
patent: 3550873 (1970-12-01), Walker
patent: 3815836 (1974-06-01), Munnekehoff et al.
patent: 3833179 (1974-09-01), Maurer
Lenk Erich
Schippers Heinz
Barmag Barmer Maschinenfabrik Aktiengesellschaft
Gilreath Stanley N.
Shurtleff John H.
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