Tool holder

Details Tool holder Tool holder

1979-07-23

1981-05-05

Hinson, Harrison L.

Chucks or sockets

Socket type

Transverse pin

B23B 522

Patent

active

042654602

ABSTRACT:
A tool holder has a bore adapted to receive therein a tool having locking flat surfaces on the shank thereof, and a peripheral wall defining the bore; tangential holes running across the peripheral wall and having an aperture open to the bore; and locking cotters each having an inclined surface and disposed in each tangential hole movably in the axial direction thereof. Displacement of each locking cotter towards the mid portion of the tangential hole causes the inclined surface to press against the flat surface of the shank due to the wedge effect, thereby locking the shank to the peripheral wall. Increasing torque, which acts on the shank, moves the locking cotter in the axial direction to a further extent, thus providing an increased wedge effect, whereby a greatly increased shank retaining force is obtained.

REFERENCES:
patent: 2700549 (1955-01-01), Cornett
patent: 3091474 (1963-05-01), Boutros et al.
patent: 3618962 (1971-11-01), Cox
patent: 3811694 (1974-05-01), Dahlman et al.

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