Hammer drill chuck

Details Hammer drill chuck Hammer drill chuck

1984-12-26

1986-08-26

Weidenfeld, Gil

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

279 1ME, B23B 3112

Patent

active

046078550

ABSTRACT:
A drill chuck includes a chuck body connected to a drilling spindle and having a tool holding fixture for retaining a drill bit between jaws. Accommodated in the chuck body is a through-passage which leads to the tool holding fixture and through which the impact of the spindle onto the drill bit is transmitted. A tightening ring is rotatable about the chuck body in order to allow loosening and tightening of the drill bit and is connected to an adjusting sleeve which is arranged at a distance to the chuck body to define an annular space therebetween. In order to allow discharge of any dirt penetrating through the jaws and into the tool holding fixture channels are provided between one end of the annular space and the tool holding fixture. The other end of the annular space is connected to the outside so that dirt can be transported through the channels and the annular space towards the outside.

REFERENCES:
patent: 1361571 (1920-12-01), Eden, Jr.
patent: 4213622 (1980-07-01), Rohm
patent: 4272087 (1981-06-01), Rohm
patent: 4413689 (1983-11-01), Hughes et al.

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