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Patent Searching and Data


Title:
MALE THREADED MEMBER
Document Type and Number:
WIPO Patent Application WO/2018/116724
Kind Code:
A1
Abstract:
Provided is a male threaded member configured such that a collar is mounted in advance on the male threaded member side to make it possible that fastening work is efficiently performed without increasing the number of parts. This male threaded member 1 is configured such that a shaft 5 is inserted into a mounting hole 105 in a mounting member 101 with a collar 7 therebetween, and the mounting member 101 is fastened to a member 102 to which the mounting member 101 is to be fastened. The shaft 5 is provided with a thread 51 and a neck 52. The collar 7 is mounted to the neck 52 so as to be rotatable relative to the neck 52 and is engaged with and retained by the thread 51. When a counterbored hole 106 is formed in the mounting hole 105-side opening of a female threaded hole 104, the axial length of the cylindrical section 71 of the collar 7, which is inserted into the mounting hole 105, is set greater than the sum of the length of the mounting hole 105 and the depth of the counterbored hole 106 by an amount corresponding to the difference between the amount of elongation of both the mounting member 101 and the member 102, to which the mounting member 101 is to be fastened, due to thermal expansion at the highest temperature of the expected environment of use, and the amount of elongation of the collar 7.

Inventors:
MATSUMOTO, Kuninori (201, Soya, Hadano-sh, Kanagawa 31, 〒2570031, JP)
MATSUNO, Mayumi (201, Soya, Hadano-sh, Kanagawa 31, 〒2570031, JP)
Application Number:
JP2017/041711
Publication Date:
June 28, 2018
Filing Date:
November 20, 2017
Export Citation:
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Assignee:
TOPURA CO., LTD. (201 Soya, Hadano-shi Kanagawa, 31, 〒2570031, JP)
International Classes:
F16B39/26; F16B25/00; F16B43/00
Foreign References:
JPS5524298A1980-02-21
JPS5390768U1978-07-25
JPS6374514U1988-05-18
JPS55100413A1980-07-31
Attorney, Agent or Firm:
NAKAMURA, Go et al. (Acropolis 21 Bldg. 8th Floor, 4-10 Higashi Nihonbashi 3-chome, Chuo-k, Tokyo 04, 〒1030004, JP)
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