Title:
BOLT DEVICE AND TELESCOPIC JOINT
Document Type and Number:
Japanese Patent JP2014181760
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a bolt device that can slide and move between a bolt and a nut, and provide a telescopic joint having the bolt device as a stopper and allowing a clearance between pipings to be extended by a simple structure.SOLUTION: This invention comprises: a bolt 4 having a shant 6 extending from a head part 3 abutted against the first location 54 toward the second location; a half nut 8 having a pressure accepting slant surface 7 with a plane directing toward the second location being inclined in respect to an axis line; pre-pressure holding means 15 for applying a pre-compression force against the half nut by pre-pressure applying means to hold the half nut and a resilient member at a state in which the pre-compression force is added; abutting member 12 having an abutting slant surface 11 abutted against the pressure accepting slant surface; and a connecting member 13 for connecting the abutting member with the second location. In the case that an external force acts against a clearance between the first location and the second location in an axial direction where the clearance is expanded and the external force is more than a prescribed value, an engaged state between the half nut and the bolt is released, a diameter of the half nut is expanded and the bolt slides and moves in respect to the half nut.
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Inventors:
IKEDA SHINTARO
Application Number:
JP2013056958A
Publication Date:
September 29, 2014
Filing Date:
March 19, 2013
Export Citation:
Assignee:
VICTAULIC JAPAN
International Classes:
F16B7/18; F16B9/02; F16B37/10; F16L27/12
Domestic Patent References:
| JPS6127385A | 1986-02-06 | |||
| JP2002139110A | 2002-05-17 | |||
| JP2007010066A | 2007-01-18 | |||
| JP2007239932A | 2007-09-20 | |||
| JP2002227343A | 2002-08-14 | |||
| JPS6127385A | 1986-02-06 | |||
| JP2002139110A | 2002-05-17 | |||
| JP2007010066A | 2007-01-18 | |||
| JP2007239932A | 2007-09-20 | |||
| JP2002227343A | 2002-08-14 |
Attorney, Agent or Firm:
Katsunuma Hirohito
Hiroyuki Nagai
Katsuomi Isogai
Junpei Okada
Hiroyuki Nagai
Katsuomi Isogai
Junpei Okada
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