JOINT - DAIKIN IND LTD

Title:

JOINT

Document Type and Number:

WIPO Patent Application WO/2005/100838

Kind Code:

A1

Abstract:

A joint where breakage of a pressure sensor connection nut and a flare copper tube connection nut can be prevented. A joint (50) is a joint for communicating a first fluid path and a second fluid path of a nut member (20) having a second fluid path (Pp), a female screw section (22), and a first taper section (21), and the joint has a pushrod (52) and a body (51). The body has a pushrod receiving space (SPi), a communication path (Pi2), a seal structure forming section (53, 163), and a male screw section (54). The pushrod receiving space receives the pushrod such that a portion of the pushrod projects in the pushrod longitudinal direction (X). The communication path is the path communicated with the first fluid path. The seal structure forming section (53, 163) is provided at an end section on the pushrod projection side (X1) so as to surround the outer periphery of the pushrod receiving space and is capable of forming a seal structure when in contact with the first taper section. The male screw section can be screwed into the female screw section in the pushrod longitudinal direction. When the female screw section and the male screw section are screwed to each other, the seal structure forming section is in contact with the first taper section. Further, a part of that portion of the pushrod which projects from the pushrod receiving space comes into contact with a part of the nut member to move the pushrod in the pushrod longitudinal direction to the opposite side (X2) to the pushrod projection side, the pushrod thereby causing the second fluid path and the communication path to communicate.

Inventors:

DOMYO NOBUO (JP)
KURATA HAJIME (JP)
OTA SHOGO (JP)

Application Number:

PCT/JP2005/006754

Publication Date:

October 27, 2005

Filing Date:

April 06, 2005

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
DOMYO NOBUO (JP)
KURATA HAJIME (JP)
OTA SHOGO (JP)

International Classes:

F16L15/02; F16L15/08; F16L19/02; F16L37/28; (IPC1-7): F16L15/02; F16L19/02; F16L37/28

Foreign References:

JPS63164689U	1988-10-26
JPH0248694U	1990-04-04
JPH0590078U	1993-12-07
JPS4941543Y1	1974-11-14

Other References: