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1. (WO2016052222) RESIN-MADE TUBE JOINT

Pub. No.:    WO/2016/052222    International Application No.:    PCT/JP2015/076426
Publication Date: Fri Apr 08 01:59:59 CEST 2016 International Filing Date: Fri Sep 18 01:59:59 CEST 2015
IPC: F16L 33/22
F16L 19/02
Applicants: NIPPON PILLAR PACKING CO., LTD.
日本ピラー工業株式会社
Inventors: FUJII Makoto
藤井 睦
MIYAMOTO Masaki
宮本 正樹
IIDA Toshihide
飯田 俊英
KOIKE Tomoyuki
小池 智幸
NAKANO Atsushi
中野 篤
URATA Daisuke
浦田 大輔
Title: RESIN-MADE TUBE JOINT
Abstract:
Provided is a resin-made tube joint that can be reconnected easily and reliably with a tube after the connected tube has been removed, and in which sealability between a joint body and a sleeve can be maintained favorably both when the tube is connected for the first time or when the tube is reconnected. By pressing an insertion part 27 of a sleeve into a groove part 20 of a joint body, a seal part 31 that seals the inner circumferential surface of the insertion part and the outer circumferential surface of an inner cylinder part 13 is formed. When the insertion part is pressed into the groove part, a space 33 is formed between a protruding end 30 of the insertion part and a body cylinder part 11 which is located on the opposite side, in the axial direction, from the opening section of the groove part. In a cross section including the axial center of the inner cylinder part, after the completion of the pressing of the insertion part into the groove part, a region 35, within the outer circumferential surface of the inner cylinder part, that faces said space forms a predetermined angle ranging from 5° to 15° with respect to the axial center of the inner cylinder part.