Arrangement for transmitting torque in a manually operated tool

Details Arrangement for transmitting torque in a manually operated tool Arrangement for transmitting torque in a manually operated tool

1996-05-06

1998-01-06

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Tool or tool with support

Including detailed shank

408239R, 408240, 279 196, B23B 3122

Patent

active

057047448

ABSTRACT:
An arrangement for transmitting torque from a chuck (5) in a manually operated tool to a tool bit (1) having an axially extending chuck section (2) insertible into the chuck. The chuck section (2) has axially extending entrainment faces (31) arranged to cooperate with correspondingly shaped torque transmitting faces (6) in the chuck (5). The chuck section (2) is arranged to cooperate with a device (7) in the chuck for retaining the tool bit and affording limited axial displaceability of the bit. The chuck section (2) is formed with at least one recess (4). The device (7) in the chuck includes a locking element (8) engageable in the recess. The locking element (8) is axially and radially displaceable both to a limited extent and the axial displaceability of the tool bit is possible at least in part, by the limited axial displaceability of the locking element (8).

REFERENCES:
patent: Re35174 (1996-03-01), Wanner
patent: 1524301 (1925-01-01), Haight
patent: 3543613 (1970-12-01), Oboloy
patent: 4131165 (1978-12-01), Wanner et al.
patent: 4680999 (1987-07-01), Kojima et al.
patent: 4692073 (1987-09-01), Martindell
patent: 5013194 (1991-05-01), Wienhold
patent: 5062749 (1991-11-01), Sheets
patent: 5326199 (1994-07-01), Kleine et al.
patent: 5397203 (1995-03-01), Kleine et al.
European Search Report, No. EP 96 81 0136, dd. Sep. 19, 1996.

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