Title:
INSTALLATION STRUCTURE FOR TUBULAR STRUCTURE, AND TUBULAR STRUCTURE
Document Type and Number:
Japanese Patent JP2019007337
Kind Code:
A
Abstract:
To provide a tubular structure using a taper tube, which prevents stress concentration and which reduces an influence exerted on a member by environmental conditions.SOLUTION: An installation structure 1 for a tubular structure comprises a taper tube 2 that has a taper shape throughout its length, and a base 3 that includes a body part 4 and a tubular protrusion 5 protruding from the body part 4 and pressed into the side of an inner peripheral surface 2a of the taper tube 2. An outer peripheral surface 51 of the tubular protrusion 5 has a taper shape corresponding to an inner peripheral surface 2a of the taper tube 2. An outside diameter of the tubular protrusion 5 varies from a first outside diameter Dlarger than an inside diameter dof an end opening of the taper tube 2 by the taper shape of the outer peripheral surface 51 to a second outside diameter Dsmaller than the inside diameter dof the end opening.SELECTED DRAWING: Figure 1
Inventors:
HISAZUMI KAZUMASA
YOKOZEKI KOICHI
TOMINAGA NORIYOSHI
YOKOZEKI KOICHI
TOMINAGA NORIYOSHI
Application Number:
JP2018097962A
Publication Date:
January 17, 2019
Filing Date:
May 22, 2018
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP
International Classes:
E04H12/22; E01F9/60; E04H12/08; F21S8/08; F21V31/00
Domestic Patent References:
| JP2003049561A | 2003-02-21 | |||
| JP2013206853A | 2013-10-07 | |||
| JP2013204385A | 2013-10-07 | |||
| JP2009275396A | 2009-11-26 | |||
| JP2015074924A | 2015-04-20 | |||
| JP2017110442A | 2017-06-22 |
Foreign References:
| US5398478A | 1995-03-21 | |||
| US20010013419A1 | 2001-08-16 | |||
| KR20060072759A | 2006-06-28 |
Attorney, Agent or Firm:
Intellectual Property Office