Title:
JOINT UNIT AND ASSEMBLING METHOD OF JOINT UNIT
Document Type and Number:
Japanese Patent JP2023130023
Kind Code:
A
Abstract:
To make a holding force which is sufficient for fixing a resin-made tube so as not to come off from a protrusion reliably act.SOLUTION: A joint unit 500 comprises a resin-made tube 300, a joint structure 100 and a nut 200. The joint structure 100 has a guide part for guiding an external peripheral face 301 of the resin-made tube 300, a protrusion 130 forming an insertion groove 133 between the guide part and itself, and a fixing part 140 for fixing the resin-made tube 300 which is inserted into the insertion groove 133. A tip of the protrusion 130 is located in a position closer to a main body part 110 than a tip of the guide part. The nut 200 has a recess 230 having an inside diameter which is larger than a first outside diameter of the guide part, and smaller than a second outside diameter of the fixing part 140, and in a state in which the nut 200 is fastened to the joint structure 100, a tip of the fixing part 140 which contacts with the recess 230 bites into the external peripheral face 301 of the resin-made tube 300.SELECTED DRAWING: Figure 9
Inventors:
IMAI HIROSHI
HASUNUMA MASAHIRO
HASUNUMA MASAHIRO
Application Number:
JP2022034455A
Publication Date:
September 20, 2023
Filing Date:
March 07, 2022
Export Citation:
Assignee:
SURPASS KOGYO KK
International Classes:
F16L19/06; F16L19/02
Attorney, Agent or Firm:
Takaharu Fujita
Takaori Mitoma
Miki Kawakami
Daisuke Nagata
Takaori Mitoma
Miki Kawakami
Daisuke Nagata