Drill chuck for use in percussion drilling

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

B - Operations, Transporting

23

B

77/28

B23B 51/00 (2006.01) B23B 31/00 (2006.01) B23B 31/12 (2006.01) B25D 17/08 (2006.01)

Patent

CA 1216442

ABSTRACT OF THE DISCLOSURE 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.

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