Title:
COMBINATION OF MULTI-PITCH SCREW AND MULTI-PITCH NUT, AND METHOD OF MANUFACTURING MULTI-PITCH NUT
Document Type and Number:
Japanese Patent JP2007016797
Kind Code:
A
Abstract:
To provide a screw and a nut capable of surely preventing loosening without applying excess stress to members, though they are discontinuously locked.
Flat portions 12a and slope portions 12b are alternately formed on a thread 12 of a multi-pitch screw 10. Flat portions and slope portions are also formed on a thread of a multi-pitch nut engaged with the multi-pitch screw. The thread of the multi-pitch nut may be continuous or intermittent.
Inventors:
FUJII HIROSHI
SUGIYAMA KATSUHIRO
MITSUGUCHI KATSUSHI
KATAYAMA KENICHI
MORIGUCHI YOSHINORI
SUGIYAMA KATSUHIRO
MITSUGUCHI KATSUSHI
KATAYAMA KENICHI
MORIGUCHI YOSHINORI
Application Number:
JP2002346891A
Publication Date:
January 25, 2007
Filing Date:
November 29, 2002
Export Citation:
Assignee:
IMASEN ELECTRIC IND
INST NAGOYA IND SCIENCE RES
INST NAGOYA IND SCIENCE RES
International Classes:
F16B39/30; F16B33/02; F16H25/24
Attorney, Agent or Firm:
Akito Tashita