Chucks or sockets – Radially reciprocating jaws – Jaws
Patent
1987-01-12
1987-12-15
Weidenfeld, Gil
Chucks or sockets
Radially reciprocating jaws
Jaws
279 55, B23B 3110
Patent
active
047128313
ABSTRACT:
A pin assembly for removably attaching a jaw portion of a translatable jaw of a stretch jaw chuck through an elongated slotted opening in the chuck wall. A bushing is threaded into mating threads in a bore in the jaw portion. The bushing has a centrally positioned substantially rectangular shaped opening extending therethrough with a slot formed on the bottom exterior surface of the bushing adjacent to each elongated side of the rectangular opening therethrough. An attachment pin is provided with a first end configured to pass through the opening in the bushing and latch into the aligned slots on the outer surface. The pin has a coil spring confined between a pair of flat washers. The first washer adjacent the second end of the pin rides against a nut adjustable along a threaded portion of the pin. When the first end of the pin is inserted through a selected slotted opening in the chuck housing, through the bushing floor opening and rotated into locking engagement with the slots, the pin is secured to the bushing by the second washer biased by the spring against the chuck housing outer surface. The pin assemblies removably connected to the jaw portions are translatable along the slots relative to the chuck housing.
REFERENCES:
patent: 2379984 (1945-07-01), Nereaux
patent: 2864623 (1958-12-01), Spink
patent: 3032281 (1962-05-01), Wexell
patent: 3370144 (1968-02-01), Arthur et al.
patent: 4239246 (1980-12-01), Howlett
patent: 4361286 (1982-11-01), Hofmann et al.
Gilliam Frank D.
Rohr Industries, Inc.
Schlesinger Patrick J.
Webb Glenn L.
Weidenfeld Gil
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