WO2005057073A1 - クイックコネクタ - Google Patents
クイックコネクタ Download PDFInfo
- Publication number
- WO2005057073A1 WO2005057073A1 PCT/JP2004/016595 JP2004016595W WO2005057073A1 WO 2005057073 A1 WO2005057073 A1 WO 2005057073A1 JP 2004016595 W JP2004016595 W JP 2004016595W WO 2005057073 A1 WO2005057073 A1 WO 2005057073A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- retainer
- tube
- quick connector
- housing
- connector according
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/14—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain
- F16L37/142—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially
- F16L37/144—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially the securing element being U-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
-
- 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
- F16L2201/00—Special arrangements for pipe couplings
- F16L2201/10—Indicators for correct coupling
Definitions
- the present invention relates to a tightness connector and a connector used for connecting tubes in a fuel transfer pipe of an automobile or the like.
- a tight connector is widely used as a pipe joint for connecting a fuel tube.
- This quick connector is attached to one end of the tube, the other tube to be connected is inserted into the housing of the quick connector, and then the retainer is pushed in so that the tube can be easily connected with one touch without using bolts or other fastening elements. They can be connected to each other.
- Typical conventional techniques of quick connectors include those described in Patent Documents 1 and 2.
- a spool portion 3 orbiting around the outer peripheral portion is formed by a terminal cap at the end of a tube 2 of the other party connected by this type of quick connector.
- the quick connector it is a force to insert the tube 2 into the housing 4 first and then push the retainer 5 in the proper connection order. As shown in Fig. 13, the retainer 5 may be pushed first. Often there. In this case, when the tube 2 is inserted into the nozzle 4, the spool portion 3 comes into contact with the edge 6b opposite to the edge 6a of the rib 6 of the retainer 5, and the tube 2 is further inserted. Cannot be performed, resulting in a state of incomplete connection. When the quick connector and the tube 2 are incompletely connected, they cannot be distinguished from the completely connected state in appearance. Therefore, in the conventional quick connector, the end of the tube 2 is prevented from reaching the O-ring 7 when it is in an incompletely connected state, so that the incompletely connected state can be determined by the leakage of the fluid at the time of a leak test. And then.
- Patent Document 1 U.S. Pat.No. 5,542,716
- Patent Document 2 JP 2002-206683 A
- Patent Document 3 JP-A-11-230456
- the incompletely connected state can be distinguished from the completely connected state, but the incompletely connected state itself cannot be prevented. .
- an object of the present invention is to solve the above-mentioned problems of the related art, and it is impossible to push and lock the retainer as far as the terminal of the counterpart tube is not fully inserted to the regular complete coupling position. And to provide a quick connector with no incomplete connection.
- the present invention provides a housing into which a terminal of a mating tube having a spool portion is inserted, and a retainer inserted at right angles to an axial direction of a window portion opening in the housing.
- the spool is restrained by the retainer so that the other tube and the housing are connected to each other, wherein the tube is inserted into the housing, and the spool is attached to the retainer.
- a coupling confirming member capable of pushing the retainer when the position exceeds a position at which the retainer can be coupled to the retainer.
- the coupling confirmation member is prevented from coming off by the interference force by the interference portion, so that the retainer is pushed in. Can be prevented and the incomplete connection between the retainer and the tube can be reliably prevented.
- FIG. 1 is an exploded perspective view of a quick connector according to one embodiment of the present invention.
- FIG. 2 is a side view of a quick connector according to one embodiment of the present invention.
- FIG. 3 is a front view of the quick connector.
- FIG. 4 is a longitudinal sectional view of a quick connector according to an embodiment of the present invention.
- FIG. 4 (a) shows a position where a spool portion of a mating tube abuts on a coupling confirmation member
- FIG. 4 (b) shows a mating tube. The spool position of the tube is still in position beyond the lock point with the retainer.
- FIG. 5 is a longitudinal sectional view showing the quick connector in a state where the counterpart tube is inserted to a position where the retainer can be pushed.
- FIG. 6 is a cross-sectional view of a quick connector and a kuta showing a state in which the connection confirming member is expanded when the spool portion is at the position of FIG. 5;
- FIG. 7 is a longitudinal sectional view of a quick connector and a kuta in a state where a spool portion of a counterpart tube is completely connected by a retainer.
- FIG. 8 is a front view of the quick connector in FIG. 7.
- FIG. 9 is a front view showing a modified example of the retainer in the quick connector embodiment of the present invention.
- FIG. 10 is an explanatory view showing the operation of the engagement confirmation member in FIG. 9.
- FIG. 11 is a front view showing a modified example of the housing in the embodiment of the quick connector of the present invention.
- FIG. 12 is a longitudinal sectional view of a conventional quick connector.
- FIG. 13 is a vertical cross-sectional view of a conventional quick connector when a mating tube is at an incompletely connected position.
- FIG. 1 is an exploded perspective view showing a quick connector according to a first embodiment of the present invention.
- reference numeral 10 indicates a quick connector.
- Numeral 12 denotes a nozzle of the quick connector 10
- numeral 16 denotes a retainer.
- FIG. 2 shows a side view of the quick connector 10 with the retainer 16 temporarily assembled to the housing 12, and
- FIG. 4 is a front view of the connector 10, and FIG. 4 is a longitudinal sectional view when the tube 14 is inserted into the quick connector 10 in FIG.
- the housing 12 of the quick connector 10 forms a female joint having an open tube insertion port 20 into which the other tube 14 is inserted, and a resin tube 17 can be attached by press fitting.
- a stepped passage 21 is formed in the inside of the housing 12 in the axial direction so as to extend in the axial direction.
- a slit-shaped retainer inlet 22 for inserting the retainer 16 from a direction perpendicular to the axial direction is formed at the distal end of the housing 12 so as to extend in the circumferential direction.
- the housing 12 includes side wall portions 23a and 23b and a first cylindrical portion 25a.
- the first cylindrical portion 25a is further press-fitted to the first cylindrical portion 25a via a second cylindrical portion 25b having a smaller diameter. 18 are consecutive.
- an O-ring 27 and a top hat 28 for preventing the O-ring 27 from jumping out are housed inside the first cylindrical portion 25a.
- the counterpart tube 14 is a metal or resin tube in this embodiment, and is processed at a predetermined distance from the end by performing terminal processing.
- a spool portion 30 that goes around the outer peripheral portion is formed.
- the retainer 16 is a plastic or metal U-shaped member having locking legs 31a and 31b extending in parallel on both sides.
- this type of conventional retainer is different from the conventional retainer.
- it is constructed as a thin retainer with the length of the housing in the axial direction greatly reduced! The width of the retainer inlet 22 and the width of the retainer 16 now correspond!
- a U-shaped rib 32 is formed inside the legs 31a and 31b of the retainer 16.
- the curvature of the curved surface of the U-shaped rib 32 is substantially equal to the curvature of the outer peripheral surface of the other tube 14, and therefore, the other tube 14 inserted into the housing 12 is attached to the rib 32. They are fitted.
- Locking pawls 34a and 34b are formed at the ends of the legs 31a and 3 lb of the retainer 16, respectively. When the retainer 16 is pushed to the regular position, the locking pawls 34a and 34b are pressed into the side walls 23a and 2b of the housing 12.
- the retainer 16 By engaging with the lower edge of 3b, the retainer 16 can be locked so as not to come off the nozing 12 (see FIG. 8).
- the end surface 32a of the rib 32 of the retainer 16 serves as a restraining surface of the spool 30, and the tube 14 is connected so as not to come off from the housing 12 (see FIG. 7).
- the retainer 16 is forcibly removed in a state where the lock claws 34a and 34b of the retainer 16 are engaged with the lower edges of the side walls 23a and 23b of the housing 12, in this embodiment, With a limit reference force of about 8 kgf, the lock claw 34a, 34b of the retainer 16 does not come off unless at least more force is applied.
- connection confirming member for confirming that the retainer 16 and the other tube 14 are in a positional relationship capable of being completely connected.
- 36a and 36b are combined to form a structure in which the connection confirmation members 36a and 36b are integrated.
- connection confirmation members 36a and 36b have an elongated rod shape and extend in parallel with the locking legs 31a and 31b with a slit 35 interposed therebetween. 37b is formed. These claws 37a, 37b are opposite in direction to the lock claws 34a, 34b.
- the housing 12 is provided with an interference portion 38 that interferes with the claw portions 37a and 37b of the connection confirmation members 36a and 36b.
- the interference portion 38 extends in a crescent shape along the opening edge of the passage opening of the first cylindrical portion 25a, and both ends of the interference confirmation member 36a, 36b are respectively provided.
- the claws ⁇ 37a, 37b [The interference edges 39a, 39b that come into contact.
- the interval A between the claws 37a and 37b when no force is applied to the connection confirmation members 36a and 36b is set shorter than the diameter B of the spool 30 of the other tube 14.
- the distance between the interference edges 39a and 39b of the interference portion 38 is set so that the interference edges 39a and 39b are located immediately below the claw portions 37a and 37b in a state where no force is applied to the coupling confirmation members 36a and 36b. ing. In this state, even if the retainer 16 is pushed in, no more than a certain limit or more than the limit reference is applied! / As far as possible, it cannot be pushed in! / ⁇ . In the case of the present embodiment, about 8 kgf is set as the limit reference force. V, the strength of the connection confirmation members 36a and 36b is set as shown in FIG.
- the spool portion 30 also has a curved surface force that swells in a U-shape in cross section, and applies a sliding force to the claws ⁇ 37a, 37b of the connection confirming members 36a, 36b, thereby causing the spool confirming members 36a, 36b to move. Apply a force that pushes outward.
- FIG. 5 when the tube 14 is sufficiently inserted to a position where the spool portion 30 and the coupling confirmation members 36a and 36b overlap on the same plane, as shown in FIG. 6, the coupling confirmation members 36a and 36b As a result, the claw portions 37a and 37b are disengaged from the interference edges 39a and 39b of the interference portion 38. In this state, the retainer 16 can be pushed.
- the quick connector according to the present embodiment is configured as described above. Next, the operation thereof will be described.
- FIG. 1 when the retainer 16 is lightly inserted from the retainer ⁇ inlet 22 opened in the housing 12, the locking claws 34a, 34b at the tips of the legs 31a, 31b of the retainer 16 are shown in FIG. Thus, the hooking force is applied to the locking grooves 40a, 40b formed inside the side wall portions 23a, 23b of the housing 12.
- the position of the retainer 16 at this time is the temporary assembling position.
- the connection confirmation members 36a and 36b are at the positions shown in FIG. 3, and the claw portions 37a and 37b maintain the interval A.
- the quick connector 10 is shipped as a product in which a retainer 16 is temporarily assembled to a housing 12 and a resin tube 17 is press-fitted into a press-fit connection portion 18 of the quick connector 10.
- a retainer 16 is temporarily assembled to a housing 12 and a resin tube 17 is press-fitted into a press-fit connection portion 18 of the quick connector 10.
- a metal tube 14 of a connection partner is inserted into the nosing 12 and a retainer 16 is inserted. All you have to do is press in.
- the spool portion 30 pushes and expands the claw portions 37a and 37b of the connection confirming members 36a and 36b, and the pushing hand transmits a sense of resistance as a touch.
- the spool portion 30 is aligned on the same plane as the connection confirmation members 36a and 36b.
- the positional relationship between the claws ⁇ 37a, 37b of the coupling confirmation members 36a, 36b and the interference edges 39a, 39b is as shown in FIG. 6, and the claws ⁇ 37a, 37bi and the interference edges 39a, 39b are disengaged. , So that the retainer 16 can be pushed for the first time.
- FIG. 8 is a view of the quick connector 10 at this time as viewed from the tube ⁇ inlet 20.
- the retainer 16 has such a strength that the pawls 34a and 34b are not damaged unless the retainer 16 is pulled with a force exceeding a predetermined limit reference force.
- the retainer 16 has a minimum tensile force of 8 kgf or less. The retainer 16 cannot be removed without being damaged.
- the end of the spool portion 30 of the tube 14 It is located at substantially the same position as the end surface 32a of the rib 32. In this position, the spool portion 30 would normally be on a lock point that can be joined by the retainer 16.
- connection confirmation members 36a and 36b are not completely pushed and expanded by the spool portion 30, and the claw portions 37a and 37b are in contact with the interference edges 39a and 39b. , The pushing of the retainer 16 is prevented. Moreover, even if the force of pushing into the retainer 16 is increased, it cannot be pushed with a little force, so the tube 14 is connected. It can be intuitively confirmed that the position is not sufficiently inserted. Unless a force exceeding a predetermined limit reference force is applied to the connection confirmation members 36a and 36b, the connection confirmation members 36a and 36b have such strength that they are broken or chipped and do not deviate from the interference edges 39a and 39b. At a minimum, the retainer 16 cannot be pushed in without being damaged with a force of 8 kgf or less.
- the pawl portions 37a and 37b do not depart from the interference by the interference edges 39a and 39b unless the position in FIG. 5, that is, the position where the spool portion 30 of the tube 14 completely exceeds the lock point is reached. In other words, it can be confirmed by the connection confirming members 36a and 36b that the spool portion 30 has been completely pushed in until it exceeds the lock point.
- the extent to which the interference is released when the lock point is exceeded is determined by the width of the slit 35 between the legs 31a, 311) and the connection confirmation members 36 &, 36b in the retainer 16. I have.
- connection confirmation members 36a and 36b are prevented from deviating from the interference by the interference edges 39a and 39b in an incomplete insertion, so that the retainer 16 cannot be pushed in, and the retainer 16 cannot be pushed. It is possible to reliably prevent the tube 14 from being incompletely connected.
- FIG. 9 is a view showing a modified example of the retainer 16. Claws 37a, 37b at the front ends of the connection confirmation members 36a, 36b are provided, and interference edges 39a, 39b are provided.
- FIG. 11 is a view showing a modification of the housing 12.
- backup portions 44a and 44b are formed so as to protrude so as not to hinder passage of the tube 14 through the spool portion 30.
- the backup portions 44 a and 44 b are provided to support the rib 32 against the rib 32 of the retainer 16.
- FIG. 11 (a) shows a position where the retainer 16 is not pushed
- FIG. 11 (b) shows a position where the retainer 16 is pushed.
- both ends 45a and 45b of the rib 32 are partially overlapped with the backups # 44a and 44b.
- the rib 32 is a part of the end surface opposite to the end surface 32a (the end portions 45a and 45b and the backup portions 44a and 44b). Since the overlapping portion of 44b hits the backups 44a and 44b and is supported by the backup, the deformation of the rib 32 is prevented, and the tube 14 does not come off.
- the force described with reference to the preferred embodiment In the retainer 16 of the above-described embodiment, the legs 31a, 311) of the retainer 16 and the connection confirmation members 36 &, 36b A slit 35 having a certain width is interposed.
- the slit 35 a case where the slit 35 has almost no width, that is, a case where a cut is made at a boundary between the leg portions 31a and 311) and the connection confirmation members 36 & and 36b is included.
- the present invention can be easily applied to a thin retainer 16 which is significantly thinner than a conventional retainer, it is necessary to shorten the length of the housing instead of increasing the length of the housing as shown in FIG. With the compactness, it is possible to clearly distinguish between the two states of complete connection or no connection at all.
- the quick connector of the present invention has been described in which the retainer and the connection confirming member have an integrated structure in a preferred embodiment.
- the connection confirming member is provided separately from the retainer. A similar configuration is also possible.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2548974A CA2548974C (en) | 2003-12-12 | 2004-11-09 | Quick-connect coupling |
BRPI0417484A BRPI0417484B1 (pt) | 2003-12-12 | 2004-11-09 | acoplamento de conexão rápida |
US10/582,554 US7566077B2 (en) | 2003-12-12 | 2004-11-09 | Quick-connect coupling |
EP04820098.4A EP1698821B1 (en) | 2003-12-12 | 2004-11-09 | Quick connector |
MXPA06006445A MXPA06006445A (es) | 2003-12-12 | 2004-11-09 | Acoplamiento de conexion rapida. |
ES04820098T ES2411660T3 (es) | 2003-12-12 | 2004-11-09 | Acoplador de conexión rápida |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-414947 | 2003-12-12 | ||
JP2003414947A JP4041457B2 (ja) | 2003-12-12 | 2003-12-12 | クイックコネクタ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005057073A1 true WO2005057073A1 (ja) | 2005-06-23 |
Family
ID=34675110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/016595 WO2005057073A1 (ja) | 2003-12-12 | 2004-11-09 | クイックコネクタ |
Country Status (9)
Country | Link |
---|---|
US (1) | US7566077B2 (ja) |
EP (1) | EP1698821B1 (ja) |
JP (1) | JP4041457B2 (ja) |
CN (1) | CN100467930C (ja) |
BR (1) | BRPI0417484B1 (ja) |
CA (1) | CA2548974C (ja) |
ES (1) | ES2411660T3 (ja) |
MX (1) | MXPA06006445A (ja) |
WO (1) | WO2005057073A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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USD859618S1 (en) | 2017-09-15 | 2019-09-10 | Pentair Water Pool And Spa, Inc. | Heating apparatus clip |
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US10612707B2 (en) | 2017-11-28 | 2020-04-07 | Cooper-Standard Automotive, Inc. | Quick connect assembly and method |
US11199281B2 (en) | 2018-01-31 | 2021-12-14 | A. Raymond Et Cie. | Dual-latch quick connector |
CN211853130U (zh) * | 2018-12-29 | 2020-11-03 | 瑞肯耐特流体控制系统(镇江)有限公司 | 快速连接器 |
CN215908618U (zh) * | 2019-02-11 | 2022-02-25 | 韩一Tube株式会社 | 快速连接器联接件 |
CN110250142B (zh) * | 2019-07-04 | 2024-02-27 | 苏州萨得尔电动工具有限公司 | 带自清洁功能的喷雾器 |
USD952805S1 (en) * | 2020-01-02 | 2022-05-24 | Changzheng Lin | Water pipe quick connector |
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JP4271516B2 (ja) * | 2003-07-10 | 2009-06-03 | 三桜工業株式会社 | クイックコネクター |
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2003
- 2003-12-12 JP JP2003414947A patent/JP4041457B2/ja not_active Expired - Lifetime
-
2004
- 2004-11-09 BR BRPI0417484A patent/BRPI0417484B1/pt active IP Right Grant
- 2004-11-09 CN CNB2004800370484A patent/CN100467930C/zh active Active
- 2004-11-09 ES ES04820098T patent/ES2411660T3/es active Active
- 2004-11-09 MX MXPA06006445A patent/MXPA06006445A/es active IP Right Grant
- 2004-11-09 CA CA2548974A patent/CA2548974C/en active Active
- 2004-11-09 EP EP04820098.4A patent/EP1698821B1/en active Active
- 2004-11-09 WO PCT/JP2004/016595 patent/WO2005057073A1/ja active Application Filing
- 2004-11-09 US US10/582,554 patent/US7566077B2/en active Active
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US5863077A (en) * | 1996-12-20 | 1999-01-26 | Itt Automotive, Inc. | Quick connector with snap-on frangible retainer |
JP2001182881A (ja) * | 1999-12-27 | 2001-07-06 | Fuji Heavy Ind Ltd | 配管用コネクタのカバー構造 |
JP2004125130A (ja) * | 2002-10-04 | 2004-04-22 | Togo Seisakusho Corp | コネクタ |
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USD859618S1 (en) | 2017-09-15 | 2019-09-10 | Pentair Water Pool And Spa, Inc. | Heating apparatus clip |
Also Published As
Publication number | Publication date |
---|---|
EP1698821A4 (en) | 2007-11-07 |
JP4041457B2 (ja) | 2008-01-30 |
ES2411660T3 (es) | 2013-07-08 |
JP2005172161A (ja) | 2005-06-30 |
BRPI0417484B1 (pt) | 2016-05-24 |
EP1698821A1 (en) | 2006-09-06 |
CA2548974C (en) | 2010-08-31 |
CA2548974A1 (en) | 2005-06-23 |
CN100467930C (zh) | 2009-03-11 |
MXPA06006445A (es) | 2007-02-02 |
CN1894533A (zh) | 2007-01-10 |
US7566077B2 (en) | 2009-07-28 |
EP1698821B1 (en) | 2013-05-01 |
BRPI0417484A (pt) | 2007-05-22 |
US20070273150A1 (en) | 2007-11-29 |
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