WO2008062654A1 - Hose joint - Google Patents
Hose joint Download PDFInfo
- Publication number
- WO2008062654A1 WO2008062654A1 PCT/JP2007/071477 JP2007071477W WO2008062654A1 WO 2008062654 A1 WO2008062654 A1 WO 2008062654A1 JP 2007071477 W JP2007071477 W JP 2007071477W WO 2008062654 A1 WO2008062654 A1 WO 2008062654A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- peripheral surface
- hose
- outer peripheral
- sleeve
- loose fitting
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
- F16L33/223—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L33/224—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts a clamping ring being arranged between the threaded member and the connecting member
Definitions
- the present invention relates to a hose joint used for pipe connection of a hose through which a fluid such as water or oil, a gas such as air, or a fluid such as powder passes.
- the hose is inserted along the outer peripheral surface of the nipple, and a clamp is put on the outer periphery via a sleeve, and the sleeve is reduced in diameter by the axial movement of the clamp, and the inner peripheral surface of the hose is adjusted to the outer peripheral surface of the nipple. It relates to a hose joint to be closely attached.
- a hooking force of a rotary drive tool such as a spanner or the like is formed on the peripheral surface of a joint body connected to the base end side in the axial direction of a nipple (tube mounting shaft).
- a polygonal collar is projected and a male thread (thread surface) is formed.
- An anti-slip knurl is engraved on the outer peripheral surface of the fastener (clamping crown).
- a female threaded portion (threaded surface) is formed on the surface, and after the male threaded portion and the female threaded portion are screwed together, the fastening tool is rotated, and a collar portion disposed on the proximal end side of the male threaded portion As a result, the inclined inner surface (tapered inner surface) formed on the inner peripheral surface of the front end of the fastener presses the tapered surface formed on the outer peripheral surface of the sleeve (clamping ring).
- Patent Document 1 To reduce the diameter of the hose (tube) so that the inner surface of the hose (tube) is in close contact with the outer surface of the nipple.
- Patent Document 1 Japanese Utility Model Publication No. 57-36874 (page 12, Fig. 1, Fig. 3, Fig. 3)
- the invention according to claim 1 of the present invention is intended to completely prevent torsion of the hose accompanying tightening.
- the invention described in claim 2 is intended to simplify the positioning structure between the sleeve and the loose fitting portion.
- the invention described in claim 3 is intended to facilitate the tightening operation of the hose in addition to the object of the invention described in claim 1 or 2.
- the invention according to claim 1 of the present invention is configured such that the loose fitting portion is rotatably fitted along the outer peripheral surface of the nipple, and the loose fitting portion and the sleeve are respectively connected. It is separately attached so as not to move in the axial direction, and a fastening tool is screwed onto the outer peripheral surface of the loose fitting portion so as to be movable in the axial direction toward the sleeve.
- a stopper that engages the sleeve and the loose fitting portion in the axial direction is attached to the outer peripheral surface of the nipple, and the sleeve and the loose fitting are attached. It is characterized by adding a configuration in which the respective parts are locked so as not to move in the axial direction.
- the invention described in claim 3 is characterized in that a configuration in which a rotation operation portion is formed on the exposed outer peripheral surface of the loose fitting portion is added to the configuration of the invention described in claim 1 or 2.
- the loose fitting part is fitted to the rotation part along the outer peripheral surface of the nipple, and the loose fitting part and the sleeve cannot be moved separately in the axial direction.
- the surface is in close contact with the outer peripheral surface of the nipple. Therefore, it is possible to completely prevent the hose from being twisted due to tightening.
- the invention of claim 2 is stopped by attaching a stopper that engages the sleeve and the loosely fitting portion in the axial direction on the outer peripheral surface of the nipple.
- the sleeve and the loose-fitting portion are locked so as not to move in the axial direction.
- the invention of claim 3 forms a rotation operation portion on the outer peripheral surface of the loose fitting portion, so that only the loose fitting portion rotates regardless of the fastening tool. Operation becomes possible.
- the hose joint A of the present invention includes a nipple 1 into which a connection end of a hose H as shown in Figs. 1 to 6 is inserted, a sleeve 2 that covers the outer periphery of the inserted hose H, and the sleeve. It is composed of a fastening tool 3 arranged outside the rib 2, and a loose fitting part 4 interposed between the fastening tool 3 and the nipple 1. The loose fitting part 4 and the sleeve 2 are separately axially arranged.
- the screw 3a and 4a are respectively formed between the fastening tool 3 and the loose fitting portion 4 and screwed together so as to be movable in the axial direction, and only the rotation operation of the loose fitting portion 4 is performed.
- the inner diameter HI of the connection end of the hose H is reduced by rotating the sleeve 2 without rotating the sleeve 2 by the pressurized inner surface 3 b. It adheres to the surface la.
- the nipple 1 is formed in a substantially cylindrical shape with a difficult metal material such as stainless steel, for example.
- the nipple 1 is directed to the hose H, and the outer peripheral surface la is connected to the hose H on the distal end side (left side in FIG. 1).
- the guide portion into which the end portion is inserted is used, and the axially opposite base end side (right side in FIG. 1) outer peripheral surface lb is a sliding contact surface facing an inner surface 4b of the loose fitting portion 4 described later.
- the guide portion formed on the distal end side outer peripheral surface la is preferably formed with a ring-shaped protrusion extending in the circumferential direction as shown in the illustrated example to serve as a retaining portion for the hose H.
- a plurality of annular protrusions and annular grooves can be alternately formed in the axial direction to form a bamboo sword-like hose retaining portion.
- the sleeve 2 is formed of an elastically deformable non-metallic material such as a fluororesin or a synthetic resin having excellent surface slipperiness and heat resistance. It is composed of a deformable pressing cylindrical portion 2a and an annular portion 2b formed on the axial base end side, and this annular portion 2b is connected to the axially intermediate outer peripheral surface lc of the nipple 1 as will be described later. It can be rotated freely with the tool 5 etc., and the force is also attached so that it cannot move in the axial direction.
- an elastically deformable non-metallic material such as a fluororesin or a synthetic resin having excellent surface slipperiness and heat resistance. It is composed of a deformable pressing cylindrical portion 2a and an annular portion 2b formed on the axial base end side, and this annular portion 2b is connected to the axially intermediate outer peripheral surface lc of the nipple 1 as will be described later. It can be rotated freely with the tool 5 etc., and
- the pressing cylindrical portion 2a of the sleeve 2 is formed so that its inner diameter is slightly larger than the outer diameter of the hose H inserted along the distal end side outer peripheral surface la of the nipple 1, and from the axial distal end edge 2c to the axial direction
- a plurality of slits 2d extending in the circumferential direction are formed in the circumferential direction and a pressurizing inner surface 3b of a fastening tool 3 to be described later comes into contact with the outer peripheral surface of the pressing tubular portion 2a and is pressed inward, At the same time as it bends to the side, each slot 2d approaches each other and smoothly reduces its diameter.
- a slit (not shown) is formed in the annular portion 2b of the sleeve 2 so as to be able to expand the diameter so as to be attached to a stopper 5 which will be described later.
- a tapered chamfer 2e is formed on the outer surface on the front end side of the pressing cylindrical portion 2a so as to face a pressure inner surface 3b of the clamping tool 3 to be described later, thereby forming a sleeve into the clamping tool 3. The whole of 2 is inserted smoothly without catching force on the way.
- the fastening tool 3 is formed in a cylindrical shape from a hard metal material such as stainless steel, for example, and a female screw portion 3a constituting one of the screw portions is engraved on the inner circumferential surface on the axial base end side.
- a pressure inner surface 3b that is inclined in a taper shape with an inner diameter gradually decreasing toward the distal end side facing the pressing cylindrical portion 2a of the sleeve 2 is provided on the inner side of the axial distal end side. It is formed.
- a plurality of planar portions that are engaged with a tool or the like are formed at appropriate intervals in the circumferential direction as a rotation restricting portion 3c in the circumferential direction, for example, as shown in the illustrated example. It is preferable to form irregularities such as knurling.
- the loose fitting portion 4 is formed in a cylindrical shape using a hard non-metallic material, and a male screw portion 4a constituting the other of the screw portions is formed on the outer peripheral surface of the loose fitting portion 4.
- a stopper 4d facing the base end surface 3d of the fastening tool 3 is provided on the exposed base end outer peripheral surface of the loose fitting portion 4 as necessary. As shown in the example, it is preferable to form a plurality of flat portions engaged with a tool or the like at appropriate intervals in the circumferential direction, or to form uneven portions such as knurls.
- the hose H is preferably made of a soft material such as soft synthetic resin such as butyl chloride or silicone rubber, and the inner peripheral surface HI and the outer peripheral surface H2 are flat.
- a laminated hose blade in which a plurality or a single synthetic resin blade (reinforcing yarn) is embedded in a spiral as an intermediate layer between the transparent or opaque outer layer and inner layer.
- Hose or a spiral reinforcing hose (forlan hose) in which a belt-like reinforcing material such as a rectangular section made of synthetic resin or metal and a linear reinforcing material such as a circular section are spirally wound as an intermediate layer.
- a stopper 5 that engages the sleeve 2 and the loose fitting portion 4 in the axial direction is attached to the intermediate outer peripheral surface lc of the nipple 1 as shown in Figs.
- the case where the sleeve 2 and the loose fitting portion 4 are locked so as to be immovable in the axial direction is shown.
- the screw stopper 5a is connected to the intermediate outer peripheral surface of the nipple 1.
- the loose fitting portion 4 is axially sandwiched between the axial base end portion 5b of the lc and the locking projection Id protruding from the axial base end side of the nipple 1.
- the fitting part 4 is positioned so as to be rotatable with respect to the outer peripheral surface lb of the base end side of the nipple 1 and not movable in the axial direction.
- Sleeve 2 is positioned so that it cannot move in the axial direction.
- the screw direction of the screw stopper 5a and the intermediate outer peripheral surface lc of the nipple 1 is opposite to the screw direction of the screw parts 3a, 4a formed between the fastening tool 3 and the loose fitting part 4, etc. Then, the rotational operating force S between the tightening tool 3 and the loose fitting part 4 and the screw stopper 5a are directly affected by the loosening, and the loose fitting part 4 and the sleeve 2 do not shift or come off.
- a connecting portion le for connecting to another machine is integrally provided at the axial base end of the nipple 1, but the shape thereof is limited to the illustrated example. However, other structures are possible depending on the application.
- the connecting end of the hose H is inserted into the outer peripheral surface la of the tip side of the nipple 1, and the sleeve 2 is put on the outer periphery of the inserted hose H, and the annular portion 2b is attached to the nipple 1 by the stopper 5. It is locked so that it cannot move in the axial direction with respect to the axially outer peripheral surface lc.
- the sleeve 2 is covered with the fastening tool 3, and the inner peripheral thread portion 3a is loosely fitted along the proximal end side outer peripheral surface lb of the nipple 1 in a loosely fitting manner. Screw it onto the outer peripheral thread 4a.
- the sleeve 2 In the rotating operation of the fastening tool 3 in this set state, the sleeve 2 is not reduced in diameter by the pressurized inner surface 3b, so that the external force due to the rotational friction does not act on the hose H, and no torsion occurs.
- the fastening tool 3 screwed into the loose fitting portion 4 fastens the sleeve 2 in the axial direction.
- the sleeve 2 is reduced in diameter by its pressurized inner surface 3b without any rotational force acting on it, and the hose H receives no external force due to rotational friction. 1 is gradually pressed to the outer peripheral surface la of the tip side, and finally, the inner peripheral surface HI of the hose comes into close contact with the outer peripheral surface 1a of the tip 1 side.
- a stopper 5 that engages the sleeve 2 and the loose fitting portion 4 in the axial direction is attached to the intermediate outer peripheral surface lc of the nipple 1, and the sleeve 2 and the loose fitting portion 4 are attached by the stopper 5. Since each of them is locked so as not to move in the axial direction, there is an advantage that the positioning structure of the sleeve 2 and the loose fitting portion 4 can be simplified, the disassembly and cleaning are easy, and the manufacturing cost can be reduced.
- annular convex portion 2h is formed on the inner surface of the pressing cylindrical portion 2a of the sleeve 2 at least on the tip end side in the axial direction as shown in the figure, so that the outer periphery of the connection end portion of the hose H is formed.
- the tip inner peripheral surface of the nipple 1 is formed with a reverse taper surface If that expands toward the tip, compared to the tip edge lg of the nipple 1,
- the hose H is pushed radially inward by the annular convex portion 2h on the distal end side of the sleeve 2, and the inner end portion H2 is It is also possible to make it continuous with the kite.
- the loose fitting is performed by fixing a locking ring 5d instead of a screw stopper 5a to the intermediate outer peripheral surface lc of the nipple 1 as the stopper 5.
- a fastening part 5e such as a screw bolt is provided on the locking ring 5d so as to be able to advance and retract in the radial direction, and the fastening part 5e is screwed to the intermediate outer peripheral surface lc of the nipple 1. It is stuck and immovable.
- a plurality of fastening parts 5e are arranged at equal intervals in the circumferential direction.
- the arrangement and the number of the fastening parts 5e are not limited to the illustrated example, and other structures may be used depending on the application. Yes, it is possible.
- Example 2 shown in FIG. 3 and FIG. 4 can obtain the same operational effects as Example 1 described above, and in addition, the rotation operation of the fastening tool 3 and the loose fitting portion 4 is stopped. There is an advantage that the locking ring 5d of the tool 5 is not directly affected, and the loose fitting portion 4 and the sleeve 2 are not displaced or removed, and can be used repeatedly with peace of mind.
- Example 3 a C-type retaining ring 5f as the stopper 5 as shown in FIGS. 5 and 6 is fitted into a groove lh recessed in the intermediate outer peripheral surface lc of the nipple 1.
- the loose fitting portion 4 is sandwiched in the axial direction at the axial end surface 5g of the axial direction and the hook-shaped engagement formed on the annular portion 2b of the sleeve 2 is used.
- the configuration in which the loose fitting portion 4 and the sleeve 2 are positioned so as to be immovable in the axial direction is the same as that of the first embodiment shown in FIGS.
- the other configurations are the same as Example 1 shown in FIGS.
- the third embodiment shown in FIG. 4 also has the same effects as those of the first and second embodiments described above, and in addition, the stopper 5 can be easily attached and loosely fitted to the sleeve 2.
- the positioning structure of part 4 can be further simplified and the assembly can be improved to further reduce costs.
- a tool or the like is engaged with the rotation restricting portion 3c of the fastener 3 and supported so as not to rotate only in the circumferential direction.
- the present invention is not limited to this, and no tool or the like is used.
- the structure in which the annular portion 2b of the sleeve 2 is attached to the axially intermediate outer peripheral surface lc of the nipple 1 so as not to move in the axial direction is not limited to the illustrated example, and the sleeve 2 can be moved by moving the fastening tool 3 in the axial direction. Even if the diameter is reduced, it does not move in the axial direction! / As long as it has a structure, another structure may be used.
- Example 1 It is a front view of the hose coupling showing Example 1 of the present invention, with its main part partially cut away.
- Example 2 of the present invention This is a front view of the hose coupling showing Example 2 of the present invention, with its main part partially cut away.
- FIG. 4 is a longitudinal side view taken along line (4) 1 (4) in FIG.
- FIG. 6 is a longitudinal side view taken along line (6)-(6) in FIG.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07831210A EP2093470A4 (en) | 2006-11-21 | 2007-11-05 | FLEXIBLE PIPE FITTING |
CA002673911A CA2673911A1 (en) | 2006-11-21 | 2007-11-05 | Hose joint |
US12/513,598 US20100156095A1 (en) | 2006-11-21 | 2007-11-05 | Hose joint |
CN2007800431706A CN101542180B (zh) | 2006-11-21 | 2007-11-05 | 软管连接头 |
HK09111578.8A HK1134124A1 (en) | 2006-11-21 | 2009-12-10 | Hose joint |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006314073A JP4096040B1 (ja) | 2006-11-21 | 2006-11-21 | ホース継手 |
JP2006-314073 | 2006-11-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008062654A1 true WO2008062654A1 (en) | 2008-05-29 |
Family
ID=39429592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/071477 WO2008062654A1 (en) | 2006-11-21 | 2007-11-05 | Hose joint |
Country Status (7)
Country | Link |
---|---|
US (1) | US20100156095A1 (ja) |
EP (1) | EP2093470A4 (ja) |
JP (1) | JP4096040B1 (ja) |
CN (1) | CN101542180B (ja) |
CA (1) | CA2673911A1 (ja) |
HK (1) | HK1134124A1 (ja) |
WO (1) | WO2008062654A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5616595B2 (ja) * | 2009-07-13 | 2014-10-29 | 日本フレックス株式会社 | ホースコネクタ |
AU2011265591B2 (en) * | 2010-08-31 | 2014-05-08 | Philmac Pty Ltd | A stepped down grip ring for use in pipe couplings and pipe coupling incorporating same |
US8888139B2 (en) | 2011-10-04 | 2014-11-18 | American Boa Incorporated | Metal hose end fitting |
JP5849261B2 (ja) * | 2013-08-30 | 2016-01-27 | 株式会社トヨックス | 管継手 |
JP5799326B2 (ja) * | 2013-08-30 | 2015-10-21 | 株式会社トヨックス | 管継手 |
DE202015106514U1 (de) * | 2015-11-30 | 2016-01-07 | Alfons Markert + Co. Gmbh | Schlauchanschluss |
IT201600091809A1 (it) * | 2016-09-12 | 2018-03-12 | Aseptconn Ag | Dispositivo connettore a tenuta riutilizzabile per un tubo flessibile |
US10508762B2 (en) * | 2017-03-20 | 2019-12-17 | Brian B. Kim | Assembly of a flexible tube and a fitting body and a method thereof |
CN114222883A (zh) * | 2020-04-30 | 2022-03-22 | 东洋克斯株式会社 | 管接头用套筒及具备该管接头用套筒的管接头 |
IT202000012247A1 (it) * | 2020-05-25 | 2021-11-25 | Teco Srl | Raccordo con ghiera di fissaggio di un tubo di derivazione di un impianto di irrigazione |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5736874U (ja) | 1980-08-11 | 1982-02-26 | ||
JPH09280449A (ja) * | 1996-04-18 | 1997-10-31 | Tabuchi:Kk | チャックリング一体型の管継手 |
JPH10220664A (ja) * | 1997-02-13 | 1998-08-21 | Chuzan Chin | 回転ホースジョイント |
JPH1194168A (ja) * | 1997-09-25 | 1999-04-09 | Kitz Corp | 管継手 |
JPH11230454A (ja) * | 1998-02-16 | 1999-08-27 | Togawa Sangyo Kk | ホース継手 |
JP2005069435A (ja) * | 2003-08-27 | 2005-03-17 | Toyox Co Ltd | ホース継手 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US713117A (en) * | 1901-08-10 | 1902-11-11 | George S Lee | Hose-pipe connection. |
US1862833A (en) * | 1931-12-23 | 1932-06-14 | Sky Specialties Corp | Coupling for rubber covered tubing |
US2120275A (en) * | 1936-09-16 | 1938-06-14 | Cowles Irving | Detachable hose coupling |
US2464416A (en) * | 1946-04-20 | 1949-03-15 | Weatherhead Co | Hose end assembly |
US2877027A (en) * | 1956-04-30 | 1959-03-10 | Johnston Testers Inc | High pressure hose coupling with pressure-wedged sealing means |
US3575447A (en) * | 1969-03-24 | 1971-04-20 | Gen Motors Corp | Tube fitting |
US4427219A (en) * | 1981-01-26 | 1984-01-24 | Robroy Industries | Compression coupling |
WO2003044416A1 (de) * | 2001-11-23 | 2003-05-30 | Georg Fischer Haustechnik Ag | Schnellkupplung für rohre |
AU2003235292A1 (en) * | 2002-05-31 | 2003-12-19 | Toyox Co., Ltd. | Hose connection structure |
CN100396985C (zh) * | 2004-05-14 | 2008-06-25 | 东洋克斯株式会社 | 软管连接件 |
-
2006
- 2006-11-21 JP JP2006314073A patent/JP4096040B1/ja active Active
-
2007
- 2007-11-05 US US12/513,598 patent/US20100156095A1/en not_active Abandoned
- 2007-11-05 CA CA002673911A patent/CA2673911A1/en not_active Abandoned
- 2007-11-05 WO PCT/JP2007/071477 patent/WO2008062654A1/ja active Application Filing
- 2007-11-05 CN CN2007800431706A patent/CN101542180B/zh active Active
- 2007-11-05 EP EP07831210A patent/EP2093470A4/en not_active Withdrawn
-
2009
- 2009-12-10 HK HK09111578.8A patent/HK1134124A1/xx unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5736874U (ja) | 1980-08-11 | 1982-02-26 | ||
JPH09280449A (ja) * | 1996-04-18 | 1997-10-31 | Tabuchi:Kk | チャックリング一体型の管継手 |
JPH10220664A (ja) * | 1997-02-13 | 1998-08-21 | Chuzan Chin | 回転ホースジョイント |
JPH1194168A (ja) * | 1997-09-25 | 1999-04-09 | Kitz Corp | 管継手 |
JPH11230454A (ja) * | 1998-02-16 | 1999-08-27 | Togawa Sangyo Kk | ホース継手 |
JP2005069435A (ja) * | 2003-08-27 | 2005-03-17 | Toyox Co Ltd | ホース継手 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2093470A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP4096040B1 (ja) | 2008-06-04 |
CA2673911A1 (en) | 2008-05-29 |
JP2008128367A (ja) | 2008-06-05 |
EP2093470A4 (en) | 2011-11-30 |
CN101542180A (zh) | 2009-09-23 |
CN101542180B (zh) | 2010-12-15 |
EP2093470A1 (en) | 2009-08-26 |
US20100156095A1 (en) | 2010-06-24 |
HK1134124A1 (en) | 2010-04-16 |
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