Drill chuck for use in percussion drilling

Details Drill chuck for use in percussion drilling Drill chuck for use in percussion drilling

1986-01-21

1986-12-23

Weidenfeld, Gil

Chucks or sockets

Socket type

Lost motion

279 66, 279123, B23B 3104

Patent

active

046308369

ABSTRACT:
In a chuck for use in a drilling device, such as a hammer drill, capable of performing rotary or rotary/percussion drilling, clamping jaws are provided to secure a tool in the drilling device. The clamping jaws each have a convex surface transverse to the chuck axis and with the surface directed inwardly toward the axis. The more radially inward portion of the convex surface has a V-shaped notch extending in the axial direction of the chuck. The notch forms a pair of spaced edges which grip the surface of the tool secured in the chuck so that the tool can be reliably rotated.

REFERENCES:
patent: 93108 (1869-07-01), Miller
patent: 241926 (1881-05-01), Chillingworth
patent: 489862 (1893-01-01), Blessing
patent: 1214542 (1917-02-01), Haeseler
patent: 1224780 (1917-05-01), Parsons
patent: 1647201 (1927-11-01), Smickle
patent: 1918439 (1933-07-01), Warman
patent: 1940405 (1933-12-01), Englund
patent: 3558146 (1971-01-01), Mayers
patent: 3737170 (1973-06-01), Wanner et al.

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