Tool chuck

Details Tool chuck Tool chuck

1979-01-29

1981-06-23

Bilinsky, Z. R.

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

279 1K, 279 60, B23B 3104

Patent

active

042746426

ABSTRACT:
In order to improve the holding power of a tool chuck, especially a tool chuck for use with percussion or impact drills, without the use of elastic friction elements that impede intentional opening and closing, the invention describes a tool chuck in which cooperating, preferably conical surfaces disposed respectively, on the stationary collet and the rotating structure of the chuck engage one another when the chuck is closed and clamps the inserted tool. Additional relative rotation imparted to the rotating structure with respect to the collet causes clamping forces to be applied to the inserted tool and further causes the cooperating conical surfaces to be pressed against one another, thereby generating high surface pressures which oppose the unintentional opening of the chuck even during the presence of axial percussion shocks.

REFERENCES:
patent: 2458626 (1949-01-01), Norige

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