Drive for a drill chuck equipped with a torque coupling

Details Drive for a drill chuck equipped with a torque coupling Drive for a drill chuck equipped with a torque coupling

1992-04-10

1993-12-07

Eley, Timothy V.

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

279140, B23B 3112

Patent

active

052677419

ABSTRACT:
A drive of a drill chuck having a torque coupling which can be placed on a drive shaft of a motor via a base element on a side opposite of chuck jaws. A torque coupling having meshing ball bearing collars is inserted between the base element and the chuck jaws. A spring-loaded driven end of the torque coupling is connected with the base element and a take-off end of the torque coupling is connected with a jaw housing which guides the chuck jaws, each being fixed against relative rotation. A ring abutment for the spring-loaded driven end is fixed on the base element. A cylindrical sleeve projects from the ring abutment in a direction toward the chuck jaws, which are rotationally movable. The cylindrical sleeve overlaps a fitted cylindrical pipe which is positioned on the jaw housing and encloses the torque coupling.

REFERENCES:
patent: 2974535 (1961-03-01), Morris
patent: 5044643 (1991-09-01), Nakamura
patent: 5145193 (1992-09-01), Rohm
"Neuartiges Spannfutter fur Gewindebohrer mit einstellbarer Sicherheitskupplung," G. Teichmann: Neuartiges Spannfutter fur Gewindebohrer, p. 509 (Nov. 1955).

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