GB2274696A - Swivel type hose end fitting - Google Patents

Swivel type hose end fitting Download PDF

Info

Publication number
GB2274696A
GB2274696A GB9301937A GB9301937A GB2274696A GB 2274696 A GB2274696 A GB 2274696A GB 9301937 A GB9301937 A GB 9301937A GB 9301937 A GB9301937 A GB 9301937A GB 2274696 A GB2274696 A GB 2274696A
Authority
GB
United Kingdom
Prior art keywords
end portion
insert
swivel nut
shoulder
collar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9301937A
Other versions
GB9301937D0 (en
Inventor
Eric D Orcutt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dana Inc
Original Assignee
Dana Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CA002085857A priority Critical patent/CA2085857A1/en
Priority to JP4358707A priority patent/JPH05272673A/en
Priority to NL9202273A priority patent/NL9202273A/en
Application filed by Dana Inc filed Critical Dana Inc
Priority to GB9301937A priority patent/GB2274696A/en
Publication of GB9301937D0 publication Critical patent/GB9301937D0/en
Publication of GB2274696A publication Critical patent/GB2274696A/en
Withdrawn legal-status Critical Current

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
    • F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
    • F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
    • F16L33/2071—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
    • F16L33/2073—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member directly connected to the rigid member
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
    • F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
    • F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
    • F16L27/0812—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with slide bearings
    • F16L27/0816—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with slide bearings having radial sealing

Abstract

A swivel end fitting 10 for a tube 50 includes insert 11 having first shoulder 15 between end portion 12 and intermediate portion 13 and second shoulder 16 between intermediate portion 13 and end portion 14, and swivel nut 30 having an internal shoulder 33. During assembly, swivel nut 30 is moved axially over insert 11 until shoulder 33 engages shoulder 15. A hollow cylindrical collar 40 having a partially closed end portion 41 is then moved axially over insert 11 until end portion 41 engages shoulder 16. The tube 50 is inserted into end fitting 10 about insert 11 and within collar 40 until its leading edge engages end portion 41. Once end fitting 10 has been assembled in this manner, a crimping machine can be used to compress portions of collar 40 about the end of tube 50 to retain end fitting 10 thereon. <IMAGE>

Description

SWIVEL TYPE HOSE END FITTING This invention relates in general to fittings adapted to be secured to the ends of tubes and hoses in fluid power systems and in particular to an improved structure for a swivel type hose end fitting adapted for use in such a fluid power system.
In a basic fluid power system, a liquid (such as oil) or a gas (such as air) is supplied at an elevated pressure from a source through a line to an actuator. The actuator is responsive to the presence of the pressurized fluid to cause mechanical movement. In some applications, the line connecting the source of pressurized fluid to the actuator is a relatively rigid tube. In other applications, this line is a relatively flexible hose. In either event, an end fitting is typically provided on the end of the tube or the hose to provide a leak proof (or at least relatively leak proof) connection between it and the actuator connected thereto.
Many different types of tubes and hoses are available for various applications. Similarly, a wide variety of end fittings are also available. Thus, the tubes, hoses, and end fittings are often supplied as separate components to provide maximum flexibility, permitting a user to select a suitable combination which meets the needs of a particular application. Typically, the end fittings are formed from a plurality of components which are crimped or otherwise secured together about the end of the tube or the hose.
Frequently, the connection of the end fitting to the tube or hose is performed in the field, where specialized tools may not be readily available. Thus, an important consideration in the design and manufacture of such end fittings is the ease by which they can be assembled together and secured to the end of a tube or hose for use.
This invention relates to an improved structure for a swivel type end fitting adapted to be secured to the end of a tube or hose for use in a fluid power system. The end fitting includes a hollow cylindrical insert having a first end portion, an intermediate portion, and a second end portion. A first external shoulder is defined between the first end portion of the insert and the intermediate portion, while a second external shoulder is defined between the intermediate portion and the second end portion. The end fitting also includes a swivel nut having an internal shoulder defined thereon. During assembly, the swivel nut is moved axially over the insert until the inner shoulder thereof engages the first external shoulder of the insert. The end fitting further includes a hollow cylindrical collar having a partially closed end portion.
During assembly, the collar is moved axially over the insert until the partially closed end portion thereof engages the second external shoulder of the insert. The tube or hose is inserted into the end fitting about the insert and within the collar until the leading edge thereof engages the partially closed end portion of the collar.
Once the end fitting has been assembled in this manner, a conventional crimping machine can be used to compress portions of the collar about the end of the tube or the hose to retain the end fitting thereon.
Various objects and advantages of this invention will become apparent to those skilled in the art from the following detailed description of the preferred embodiment, when read in light of the accompanying drawings.
The invention will now be described in greater detail with reference to the accompanying drawings, in which: Fig. 1 is an exploded elevational view, partially in cross section, of a swivel type end fitting for a tube or a hose in accordance with this invention.
Fig. 2 is an elevational view, partially in cross section, of the swivel type end fitting of Fig. 1 shown assembled.
Fig. 3 is an elevational view showing the swivel type end fitting of Fig. 2 crimped onto a Referring now to the drawings, there is illustrated in Fig. 1 an exploded elevational view, partially in cross section, of a swivel type end fitting, indicated generally at 10, in accordance with this invention. The end fitting 10 includes a brass insert 11 which is generally hollow and cylindrical in shape. The insert 11 is formed having a first end portion 12 (the left end when viewing Fig. 1), an intermediate portion 13, and a second end portion 14 (the right end when viewing Fig. 1). The first end portion 12 of the insert 11 is formed having a larger outer diameter than the intermediate portion 13. As a result, a first external circumferential shoulder 15 is defined about the outer surface of the insert 11.
Similarly, the intermediate portion 13 of the insert 11 is formed having a larger outer diameter than the second end portion 14. As a result, a second external circumferential shoulder 16 is defined about the outer surface of the insert 11. The purpose of these shoulders 15 and 16 will be explained below. The outer surface of the first end 12 of the insert 11 is provided with an annular groove 17, for a purpose which will be explained below. The outer surface of the second end 14 of the insert 11 is provided with a series of annular ramped serrations, for a purpose which will also be explained below.
The end fitting 10 also includes an O-ring 20. The O-ring 20 is conventional in the art and is formed from a flexible elastomeric material. The purpose of the O-ring 20 will be explained below.
The end fltting 10 further includes a brass swivel nut 30, which is also generally hollow and cylindrical in shape. A first end portion 31 of the swivel nut 30 (the left end when viewing Fig. 1) is formed having a larger inner diameter than a second end portion 32 (the right end when viewing Fig. 1). As a result, an internal circumferential shoulder 33 is defined about the inner surface of the swivel nut 30 between the two end portions 31 and 32 thereof. The outer surface of the first end portion 31 of the swivel nut 30 is threaded as shown at 34, while the outer surface of the second end portion 32 of the swivel nut 30 is provided with flats 35. The flats 35 are provided such that a conventional wrench (not shown) may be used to engage and rotate the swivel nut 30, as will be explained below.
Lastly, the end fitting 10 includes a brass collar 40, which is also generally hollow and cylindrical in shape.
The collar 40 includes a partially closed end portion 41 which is defined by a radially inwardly extending annular flange. As shown in Fig. 1, the collar 40 is sized to fit snugly about a flexible hose 50 such that the partially closed end portion 41 abuts the axial edge of the hose 50.
The hose 50 may be formed from any conventional hose or tube material commonly available fo; use in fluid power systems.
To assemble the end fitting 10 onto the hose 50, the 0being 20 is initially lubricated and moved axially over the second end portion 14 and the intermediate portion 13 of the insert 11 onto the first end portion 12 thereof so that it is received within the annular groove 17. Then, the swivel nut 30 is moved axially over the second end portion 14 and the intermediate portion 13 of the insert 11 until the inner shoulder 33 thereof engages the first outer shoulder 15 of the insert 11. The engagement of these shoulders 33 and 15 prevents further axial movement of the swivel nut 30 relative to the insert 11 and positions the swivel nut 30 axially relative thereto.
Next, the collar 40 is moved axially over the second end portion 14 of the insert until the pa#rtially closed end portion 41 thereof engages the second outer shoulder 16 of the insert 11. The engagement of the partially closed end portion 41 and the shoulder 16 prevents further axial movement of the collar 40 relative to the swivel nut 30 and the insert 11, and further positions the collar 40 axially relative thereto.
Lastly, the serrations of the second end portion 14 of the insert 11 are lubricated, and the leading edge of the hose 50 is inserted within the collar 40 and about the serrated second end portion 14 of the insert 11. The hose 50 is moved axially within the collar 40 until the leading edge thereof engages the partially closed end portion 41 of the collar 40. The engagement of the leading edge of the hose 50 with the partially closed end portion 41 of the collar 40 prevents further axial movement of the hose 50 relative to the collar 40, the swivel nut 30, and the insert 11, and further positions the end of the hose 50 axially relative thereto. The assembled end fitting 10 is shown in Fig. 2.
Once the end fitting 10 has been assembled in this manner, a conventional crimping machine (not shown) can be employed to compress portions of the collar 40 about the end of the hose 50 in a known manner. As a result, the hose 50 is secured to the end fitting 10 as shown in Fig.
3. Because the swivel nut 30 is spaced apart from the collar 40, the swivel nut 30 is free to rotate relative thereto. The O-ring 20 provides a fluid tight seal between the insert 11 and the swivel nut 20. Consequently, a reliable swivel type connection is effected between the hose 50 and the end fitting 10. The threaded outer surface 34 of the swivel nut 30 can then be used to connect the hose 50 to an actuator (not shown) for use.
In accordance with the provisions of the patent statutes, the principle and mode of operation of this invention have been explained and illustrated in its preferred embodiment. However, it must be understood that this invention may be practiced otherwise than as specifically explained and illustrated within the scope of the appended claims.

Claims (13)

Claims:
1. A swivel type end fitting adapted to be secured to the end of a hose comprising: a generally hollow cylindrical insert having a first end portion, an intermediate portion, and a second end portion, a first external shoulder being defined between said first end portion and said intermediate portion, a second external shoulder being defined between said intermediate portion and said second end portion; a generally hollow cylindrical swivel nut having a first end portion and a second end portion, an internal shoulder being defined between said first end portion and said second end portion, said swivel nut being disposed about said insert such that said internal shoulder engages said first external shoulder of said insert: and a generally hollow cylindrical collar having a partially closed end portion, said collar being disposed about said insert such that said partially closed end portion engages said second external shoulder of said insert.
2. The invention defined in Claim 1 wherein said first end portion of said insert includes an outer surface having an annular groove formed thereabout.
3. The invention defined in Claim 2 further including an O-ring disposed in said groove and engaged with said swivel nut for providing a seal between said insert and said swivel nut.
4. The invention defined in Claim 1, 2 or herein said second end portion of said insert includes an outer surface having a plurality of annular serrations formed thereon.
5. The invention defined in Claim 1, 2 or 3, wYnein said first end portion of said swivel nut includes an outer surface which is threaded.
6. The invention defined in Claim 1, 2 or 3, ws < einEsaid second end portion of said swivel nut includes an outer surface having a plurality of flats formed thereon.
7. A method for securing a swivel type end fitting to the end of a hose comprising the steps of: (a) providing a generally hollow cylindrical insert having a first end portion, an intermediate portion, and a second end portion, a first external shoulder being defined between said first end portion and said intermediate portion, a second external shoulder being defined between said intermediate portion and said second end portion; (b) providing a generally hollow cylindrical swivel nut having a first end portion and a second end portion, an internal shoulder being defined between said first end portion and said second end portion; (c) moving said swivel nut axially about said insert such that said internal shoulder engages said first external shoulder of said insert; (d) providing a generally hollow cylindrical collar having a partially closed end portion;; (e) moving said collar axially about said insert such that said partially closed end portion engages said second external shoulder of said insert; (f) inserting an end of the hose axially within said collar and about said second end of said insert; and (g) crimping a portion of said collar about said hose and said second end of said insert to secure the end fitting to the end of the hose.
8. The invention defined in Claim 7 wherein said step (a) further includes the steps of providing an annular groove in an outer surface of said first end portion of said insert and installing an O-ring in said groove to provide a seal between said insert and said swivel nut.
9. The invention defined in Claim 7 wherein said step (a) further includes the step ot providing a plurality of annular serrations on an outer surface of said second end portion of said insert.
10. The invention defined in Claim 7 wherein said said step (b) further includes the step of providing a threaded outer surface on said first end portion of said swivel nut.
11. The invention defined in any one of Claims 7 to 10, wherein said step (b) further includes the step of providing a plurality of flats formed an outer surface of said second end portion of said swivel nut.
12. A swivel-type end fitting substantially as hereinbefore described with reference to the accompanying drawings.
13. A method of securing a swivel-type end fitting substantially as hereinbefore described.
GB9301937A 1991-12-31 1993-02-01 Swivel type hose end fitting Withdrawn GB2274696A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002085857A CA2085857A1 (en) 1991-12-31 1992-12-18 Swivel type hose end fitting
JP4358707A JPH05272673A (en) 1991-12-31 1992-12-28 Swivel-type hose end fitting and method for fixing the same to hose end
NL9202273A NL9202273A (en) 1991-12-31 1992-12-29 FINAL FITTING.
GB9301937A GB2274696A (en) 1991-12-31 1993-02-01 Swivel type hose end fitting

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81614591A 1991-12-31 1991-12-31
GB9301937A GB2274696A (en) 1991-12-31 1993-02-01 Swivel type hose end fitting

Publications (2)

Publication Number Publication Date
GB9301937D0 GB9301937D0 (en) 1993-03-17
GB2274696A true GB2274696A (en) 1994-08-03

Family

ID=26302369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9301937A Withdrawn GB2274696A (en) 1991-12-31 1993-02-01 Swivel type hose end fitting

Country Status (4)

Country Link
JP (1) JPH05272673A (en)
CA (1) CA2085857A1 (en)
GB (1) GB2274696A (en)
NL (1) NL9202273A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999056050A1 (en) * 1998-04-24 1999-11-04 The Goodyear Tire & Rubber Company Crimped swivel fitting and method of attachment of the fitting to a hose
US6491325B1 (en) 1998-04-24 2002-12-10 The Goodyear Tire & Rubber Company Crimped swivel fitting and method of attachment of the fitting to a hose
WO2006115974A3 (en) * 2005-04-22 2007-01-25 Saint Gobain Performance Plast Swivel coupling
EP2147853A3 (en) * 2008-07-25 2010-09-01 Shimano, Inc. Twistable hydraulic hose joint
ITBO20100754A1 (en) * 2010-12-22 2012-06-23 For S P A FITTING FOR FLEXIBLE TUBES

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7063357B1 (en) * 2001-11-30 2006-06-20 Ebw, Inc. Flexible pipe coupling

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB283355A (en) * 1927-02-09 1928-01-12 Kenneth Francis Malcolm Murray Improvements in hose connectors
GB773001A (en) * 1955-01-04 1957-04-17 Dunlop Rubber Co Improvements in hose coupling assemblies
US3539207A (en) * 1969-02-28 1970-11-10 Resistoflex Corp Swaged-type hose fitting and method of assembly
GB1212940A (en) * 1967-09-08 1970-11-18 Resistoflex Corp Hose fitting and method of manufacture
US4671542A (en) * 1984-12-17 1987-06-09 Dana Corporation Swivel hose coupling assembly and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB283355A (en) * 1927-02-09 1928-01-12 Kenneth Francis Malcolm Murray Improvements in hose connectors
GB773001A (en) * 1955-01-04 1957-04-17 Dunlop Rubber Co Improvements in hose coupling assemblies
GB1212940A (en) * 1967-09-08 1970-11-18 Resistoflex Corp Hose fitting and method of manufacture
US3539207A (en) * 1969-02-28 1970-11-10 Resistoflex Corp Swaged-type hose fitting and method of assembly
US4671542A (en) * 1984-12-17 1987-06-09 Dana Corporation Swivel hose coupling assembly and method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999056050A1 (en) * 1998-04-24 1999-11-04 The Goodyear Tire & Rubber Company Crimped swivel fitting and method of attachment of the fitting to a hose
US6491325B1 (en) 1998-04-24 2002-12-10 The Goodyear Tire & Rubber Company Crimped swivel fitting and method of attachment of the fitting to a hose
WO2006115974A3 (en) * 2005-04-22 2007-01-25 Saint Gobain Performance Plast Swivel coupling
US7267374B2 (en) 2005-04-22 2007-09-11 Saint-Gobain Performance Plastics Corporation Swivel coupling
EP2147853A3 (en) * 2008-07-25 2010-09-01 Shimano, Inc. Twistable hydraulic hose joint
US8162354B2 (en) 2008-07-25 2012-04-24 Shimano Inc. Twistable hydraulic brake hose unit
ITBO20100754A1 (en) * 2010-12-22 2012-06-23 For S P A FITTING FOR FLEXIBLE TUBES

Also Published As

Publication number Publication date
NL9202273A (en) 1993-07-16
CA2085857A1 (en) 1993-07-01
GB9301937D0 (en) 1993-03-17
JPH05272673A (en) 1993-10-19

Similar Documents

Publication Publication Date Title
US6019399A (en) Split-ring fluid coupling for corrugated tubing and method of assembly
US6036237A (en) Coupling for corrugated tubing
US5380049A (en) Pipe coupling
US4875709A (en) Controlled leak path
US5511830A (en) Quick connect tube couplings
CA2158521C (en) Quick connect tube couplings
US4063760A (en) Quick connect coupling
US5498043A (en) Hose fitting having ferrule anti-rotation ratchet teeth
CA2140423C (en) Quick connect tubing connector and method of assembly
EP0753696B1 (en) Gasket assembly for a fluid coupling
EP0532242A2 (en) Quick connect tubing connector and method of assembly
US4807911A (en) Push in fitting converter for plastic tubing
US5449205A (en) Hose-to-tube connector
WO2004031636A1 (en) Mechanical tube to fitting connection
EP0778437B1 (en) Spring lock coupling
GB2257764A (en) Clamping device for hose and pipe connector
GB2174468A (en) Quick connect fitting
GB2274696A (en) Swivel type hose end fitting
EP0663051B1 (en) Swivelable connector for plane end tubes
US6540262B1 (en) Ferrule-free hose fittings
US4786089A (en) Automatically locking tubing coupler
EP0531068A2 (en) Pipe couplings
AU666153B2 (en) Swivel type hose end fitting
US7121595B2 (en) Device for leaktight coupling of a tube to a threaded tubular nose
GB2083153A (en) Slip jam nut conduit connection

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)