NUT MEMBER WITH MULTI-PITCH SCREW AND METHOD OF MANUFACTURING THE SAME

Title:

NUT MEMBER WITH MULTI-PITCH SCREW AND METHOD OF MANUFACTURING THE SAME

Document Type and Number:

WIPO Patent Application WO/2006/013724

Kind Code:

A1

Abstract:

[PROBLEMS] To provide a method of manufacturing a nut member having a practicable multi-pitch screw. [MEANS FOR SOLVING PROBLEMS] A linear member (10a) comprises a ridge-shaped part (101) provided by linearly expanding equal lead angle thread and a ridge-shaped part (102) provided by linearly expanding a multi-pitch thread. The linear member is wound in a coiled shape to form a spiral coil insert body (10) having an equal lead angle male screw part (14) on the outer peripheral surface thereof and a multi-pitch male screw part (16) on the inner peripheral surface thereof. Then, the coil insert body (10) is threaded to a nut (21) having, on the inner periphery thereof, a female screw part (14) with the equal lead angle.

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Inventors:

FUJII HIROSHI (JP)
SASE NAOKI (JP)
KATAYAMA KENICHI (JP)
MORIGUCHI YOSHINORI (JP)

Application Number:

PCT/JP2005/013301

Publication Date:

February 09, 2006

Filing Date:

July 20, 2005

Export Citation:

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Assignee:

INST NAGOYA IND SCIENCE RES (JP)
FUJII HIROSHI (JP)
SASE NAOKI (JP)
KATAYAMA KENICHI (JP)
MORIGUCHI YOSHINORI (JP)

International Classes:

F16B37/12; F16B39/30

Foreign References:

JPS5417455A	1979-02-08
DE1186278B	1965-01-28

Attorney, Agent or Firm:

Tashita, Akihito (Sakae 1-chome Naka-k, Nagoya-shi Aichi 08, JP)

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