Torque adjustment device

Details Torque adjustment device Torque adjustment device

1992-03-24

1994-01-11

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Tool or tool-support with torque-applying clutch

192150, B23B 4500

Patent

active

052775275

ABSTRACT:
A torque adjustment device is disclosed which enhances durability and in which it is easy to set a maximum torque and to perform fine adjustment while normally keeping constant a rotational force of a torque adjustment sleeve. A cylindrical clutch adjustment handle is rotatably mounted at an opening portion of a housing. A clutch case is received within the clutch adjustment handle. A plurality of slant surfaces which are different in height in the axial direction are formed in an inner circumferential portion of the clutch adjustment handle. A clutch plate is supported to the slant surfaces. Also, the clutch plate is displaceably mounted along an outer peripheral portion of the clutch case. Steel balls which are held by a clutch surface of an inwardly toothed gear are received in holes of the clutch case. A spring is interposed between an abutment plate in abutment with the steel balls and the clutch plate. A plurality of recesses are formed in a flanged portion of the clutch adjustment handle. A projection of a positioning plate is engaged with the associated recess.

REFERENCES:
patent: 3235050 (1966-02-01), Schoppe et al.
patent: 3305058 (1967-02-01), Orwin et al.
patent: 4113080 (1978-09-01), Thackston et al.

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