Tool and tool holder for manually operated tools

Details Tool and tool holder for manually operated tools Tool and tool holder for manually operated tools

1993-07-13

1994-12-27

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Tool or tool with support

Including detailed shank

175415, 279 19, 408239R, B23B 5102, B23B 3100

Patent

active

053759508

ABSTRACT:
The clamping shank (1) of a chisel-cutting and/or percussion boring tool bits has stop faces effective in the axial direction and in the circumferential direction. Entrainment faces (2), open towards a free end of the clamping shank (1) are located upstream of these stop faces in the direction of the cutting area of the tool bits. The radial dimension (r) of the essentially radially extending entrainment faces (2) is greater than their axial dimension (a). In cooperation with an appropriately designed tool bit receptacle, the entrainment faces (2) can carry such a large share of the torque, that the stop faces are effectively relieved or unloaded.

REFERENCES:
patent: 991884 (1911-05-01), Osgood
patent: 993395 (1911-05-01), Newbold
patent: 2387339 (1945-10-01), Meyer
patent: 4006996 (1977-02-01), Kasabian
patent: 4187045 (1980-02-01), Fischer
patent: 5174698 (1992-12-01), Obermeier

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