Spring chuck

Details Spring chuck Spring chuck

1984-08-29

1986-04-15

Peters, Jimmy C.

Chucks or sockets

Socket type

Self-grasping

279 47, B23B 3104

Patent

active

045823324

ABSTRACT:
A spring chuck has a clamp member opening mechanism comprising a guide groove formed in a rotating shaft and inclined in one direction, a guide groove formed on a wall surface of a bar stopper and inclined in the other direction opposite to the one direction, a push member, a holding hole formed in the push member, and a ball held in the holding hole in the push member, one projection of which is engaged with the guide groove in the rotating shaft and the other projection of which is engaged with the guide groove in the bar stopper. When the push member is moved downward, the rotating shaft and the bar stopper are rotated in opposite directions, and the relative rotation between the rotating shaft and the bar stopper becomes a sum of rotational angles of the rotating shaft and the bar stopper. A displacement of an upper cover and the push member becomes small, so that the clamp member opening mechanism can be held in a head case.

REFERENCES:
patent: 414078 (1889-10-01), Rehfuss
patent: 610483 (1898-09-01), Fritz
patent: 2570570 (1951-10-01), Lee
patent: 3794335 (1974-02-01), Thackston
patent: 3967831 (1976-07-01), Chang

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