FASTENING TOOL SYSTEM COMPRISING SPLINE RECESSED PART AND DRIVING TOOL

Title:

FASTENING TOOL SYSTEM COMPRISING SPLINE RECESSED PART AND DRIVING TOOL

Document Type and Number:

Japanese Patent JP2005042925

Kind Code:

A

Abstract:

To provide a fastening system capable of easily mounting a nut on a pin.

This fastening tool system includes the threaded pin 12 having a screw part and a tool 16. The pin has a recessed part 39 on the threaded end part 36 of the pin to receive the tool, and holds the pin against the rotation when the nut 14 is mounted on the pin. The recessed part includes a plurality of splines 40a-40f extended to its circumference. A plurality of engagement mating splines 26 are formed on an end part of the tool to be engaged with grooves of the recessed part. The splines are orientated to maximize the twisting performance and to balance the shearing strength of the pin with the shearing strength of the tool. Further end parts of the splines of the recessed part and a small-diameter part 28 of the tool have curved surfaces 31 corresponding to each other to increase the twisting strength.

Inventors:

COSENZA FRANK J

Application Number:

JP2004268506A

Publication Date:

February 17, 2005

Filing Date:

September 15, 2004

Export Citation:

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Assignee:

HUCK PATENTS INC

International Classes:

B25B15/00; B25B23/02; F16B23/00; F16B35/00; F16B35/04; B25B21/00; F16B37/04; (IPC1-7): F16B23/00; B25B21/00; F16B35/00; F16B35/04; F16B37/04

Domestic Patent References:

JPH06185511A	1994-07-05
JPH08135634A	1996-05-31
JPH05118313A	1993-05-14
JPS5499860A	1979-08-07

Attorney, Agent or Firm:

Takashi Ishida
Jun Tsuruta
Masaya Nishiyama
Higuchi Souji

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