Chucks or sockets – Miscellaneous
Patent
1992-06-25
1994-04-19
Eley, Timothy V.
Chucks or sockets
Miscellaneous
279 212, 279128, 279133, B23B 522
Patent
active
053039394
ABSTRACT:
The present invention relates to an apparatus for and method of picking-up a center hub used with a flexible disk at a step of fixing the center hub and flexible disk to each other or at a similar step in the flexible disk cartridge manufacturing process. The spindle is lowered toward the center hub until the centering pin provided at the end thereof is projected into the central hole in the central portion of the center hub for centering. Next, the collet chuck is lowered until the end claws thereof are projected into the concavity in the central portion of the center hub. At this time, the flange portion of the center hub is raised due to as attraction exerted thereon by the magnets buried in the outer end face portion of the collet chuck other than at the end claws. Then the spindle is lifted, and the opening mechanism opens the collet chuck, the end claws of which will be, in turn, pressed toward the circumferential wall of the concavity in the central portion of the center hub, whereby the center hub is held in a required position.
REFERENCES:
patent: 2812185 (1957-11-01), Snell
patent: 2819905 (1958-01-01), Stead
patent: 2877022 (1959-03-01), Parker et al.
patent: 2922933 (1960-01-01), Mouer et al.
patent: 3893676 (1975-07-01), Gloshinski et al.
Akashi Tsutomu
Imada Shuichi
Eley Timothy V.
Kao Corporation
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