GB2216615A - High-pressure hose end fitting - Google Patents
High-pressure hose end fitting Download PDFInfo
- Publication number
- GB2216615A GB2216615A GB8904904A GB8904904A GB2216615A GB 2216615 A GB2216615 A GB 2216615A GB 8904904 A GB8904904 A GB 8904904A GB 8904904 A GB8904904 A GB 8904904A GB 2216615 A GB2216615 A GB 2216615A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hose
- limb
- sleeve
- land
- void
- 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.)
- Granted
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
- F16L21/00—Joints with sleeve or socket
-
- 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
- F16L33/2076—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 by plastic deformation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
HIGH-PRESSURE HOSE END FITTING
This invention relates to connectors and couplings for high-pressure hoses, and the like, and in particular, to a high-pressure hose end fitting.
High-pressure hose end fittings commonly have a sleeve crimped onto the end of a hose, the end having a ribbed limb of a hose coupling therein.
Ordinarily, when fluid passes through the fitting, nothing untoward occurs. However, if the fluid conduct is diminished, or halted, at some point upstream, the static fluid pressure in the coupling endeavours to find a leak path. If the fluid, as is frequently the case, can insinuate itself between the sleeve and the hose end, then the sleeve can rupture, or it simply can lose its crimped grip on the hose and come free.
According to one aspect of the present invention, there is provided a high-pressure hose end fitting, comprising a hose having a terminal end, a hose coupling and a crimp sleeve, said coupling having a first hose-receiving limb, a second external-connection limb and an annular land intermediate said limbs; said first limb being confined in said terminal end of said hose; said first limb and said terminal end of said hose being confined within said crimp sleeve, and said crimp sleeve being crimped on said end of said hose; and said land and said end of said hose have spaced-apart surfaces which define a void therebetween; and there being means for communicating said void with an external surface of said sleeve.
According to another aspect of the present invention, there is provided a fitting for a high-pressure hose end, the fitting comprising a hose coupling and a crimp sleeve, said coupling having a first hose-receiving limb, a second external-connection limb and an annular land intermediate said limbs, said first limb being for confinement in a hose end and said first limb and said hose end being for confinement within said crimp sleeve which is for crimping on said end of said hose and said land being so shaped that, in use, said land and said end of said hose have spaced-apart surfaces which define a void therebetween and there being means for communicating said void with an external surface of said sleeve.
The means for communicating the void with an external surface of the sleeve may be in the form of a capillary hole formed in the sleeve and opening onto the void.
For a better understanding of the invention and to show how the same may be carried into effect, reference will now be made, by way of example, to the accompanying drawing, in which the single Figure is a longitudinal cross-sectional view of a high-pressure hose end fitting according to an embodiment of the invention.
As shown in the drawing, a fitting 10 comprises a portion of hose 12 having a terminal end 14, and a hose coupling 16. -The coupling 16 has a first, ribbed, hose-receiving limb 18 at one end, a second, external-connection limb 20 at the opposite end, and a land element 22 intermediate the limbs 18 and 20. A sleeve 24 encloses both the hose end 14 and the limb 18, and is crimped onto the end 14.
The land element 22 has a flat or planar portion 26 and a circumferential wall 28 about the periphery of the portion 26. The wall 28 is nested in the sleeve 24.
Between the planar portion 26 and the end 14 of the hose 12, there subsists a void 30. If leakage or seepage fluid under pressure reaches the void 30, and insinuates itself between the hose end 14 and wall 28, and then between the end 14 and the sleeve 24, it could cause the sleeve to fracture, or so loosen the sleeve on the hose that it could come free, if it were not for the present invention.
With the present hose end fitting, a capillary hole 32 is formed through both the wall 28 and the sleeve 24 to relieve any built-up, static, fluid pressure. The hole 32 provides a controlled, directed leakage in order that the integrity of the fitting is not put at risk.
Claims (5)
1. A high-pressure hose end fitting, comprising a hose having a terminal end, a hose coupling and a crimp sleeve, said coupling having a first hose-receiving limb, a second external-connection limb and an annular land intermediate said limbs; said first limb being confined in said terminal end of said hose; said first limb and said terminal end of said hose being confined within said crimp sleeve, and said crimp sleeve being crimped on said end of said hose; and said land and said end of said hose have spaced-apart surfaces which define a void therebetween; and there being means for communicating said void with an external surface of said sleeve.
2. A high-pressure hose end fitting according to claim 1, wherein said communicating means comprises a capillary hole formed in said sleeve and opening onto said void.
3. A high-pressure hose end fitting according to claim 2, wherein said land comprises a substantially planar portion having a shallow, circumferential wall extending from the periphery thereof; said crimp sleeve has a cylindrical wall in which said circumferential wall of said land is nested; and said capillary hole is formed in both said walls.
4. A high-pressure hose end fitting, substantially as hereinbefore described, with reference to the accompanying drawing.
5. A fitting for a high-pressure hose end, the fitting comprising a hose coupling and a crimp sleeve, said coupling having a first hose-receiving limb, a second external-connection limb and an annular land intermediate said limbs, said first limb being for confinement in a hose end and said first limb and said hose end being for confinement within said crimp sleeve which is for crimping on said end of said hose and said land being so shaped that, in use, said land and said end of said hose have spaced-apart surfaces which define a void therebetween and there being means for communicating said void with an external surface of said sleeve.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16348988A | 1988-03-03 | 1988-03-03 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8904904D0 GB8904904D0 (en) | 1989-04-12 |
| GB2216615A true GB2216615A (en) | 1989-10-11 |
| GB2216615B GB2216615B (en) | 1991-10-02 |
Family
ID=22590223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8904904A Expired - Lifetime GB2216615B (en) | 1988-03-03 | 1989-03-03 | High-pressure hose end fitting |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPH01255788A (en) |
| KR (1) | KR890014942A (en) |
| CN (1) | CN1012004B (en) |
| AU (2) | AU616476B2 (en) |
| DE (1) | DE3905306A1 (en) |
| ES (1) | ES2015629A6 (en) |
| FR (1) | FR2628178B1 (en) |
| GB (1) | GB2216615B (en) |
| IT (1) | IT1228953B (en) |
| NZ (1) | NZ228184A (en) |
| SE (2) | SE8900649D0 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19923173C2 (en) * | 1999-05-20 | 2001-08-23 | Hans U Frankenberg | Connection piece for connecting a hose line for hoses under high to highest pressure with a counterpart |
| DE102019113332A1 (en) * | 2019-05-20 | 2020-11-26 | Neoperl Gmbh | Hose connection, hose line and method for producing a hose connection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1268065A (en) * | 1968-09-06 | 1972-03-22 | American Biltrite Rubber Co | High pressure hose and coupling |
| GB1356963A (en) * | 1971-05-18 | 1974-06-19 | Tecalemit Sa | Flexible or semi-flexible pipes |
| US4498691A (en) * | 1981-08-24 | 1985-02-12 | Stratoflex, Inc. | Hose fitting and method of assembly |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1926270A (en) * | 1932-08-13 | 1933-09-12 | Eastman Joseph Peter | Pressed-on hose coupling |
| US2031823A (en) * | 1934-04-20 | 1936-02-25 | Eastman Joseph Peter | Pressed-on hose coupling |
| US2177095A (en) * | 1936-02-15 | 1939-10-24 | Cowles Irving | Flexible conduit and coupling therefor and method of making same |
| US2232407A (en) * | 1940-04-29 | 1941-02-18 | Riesterer Frank | Tractor hitch |
| US2485976A (en) * | 1946-03-08 | 1949-10-25 | Aeroquip Corp | Hydraulic connector |
| DE1169737B (en) * | 1960-05-06 | 1964-05-06 | Walter Goepfert Dipl Ing | Hose socket for high and highest pressure hoses and process for manufacturing the sleeve for the hose socket |
| FR1429744A (en) * | 1965-04-02 | 1966-02-25 | Improvements to the method of attaching end pieces to flexible hoses | |
| DE3231858A1 (en) * | 1981-08-28 | 1983-03-17 | Ti Flexible Tubes Ltd., Enfield, Middlesex | End fitting for hoses |
| JPS62258286A (en) * | 1986-04-30 | 1987-11-10 | 豊田合成株式会社 | Hose joint |
-
1989
- 1989-02-21 DE DE3905306A patent/DE3905306A1/en not_active Ceased
- 1989-02-22 AU AU30211/89A patent/AU616476B2/en not_active Ceased
- 1989-02-22 AU AU30207/89A patent/AU3020789A/en not_active Abandoned
- 1989-02-24 SE SE8900649A patent/SE8900649D0/en unknown
- 1989-02-28 SE SE8900687A patent/SE8900687L/en not_active Application Discontinuation
- 1989-03-01 IT IT8919612A patent/IT1228953B/en active
- 1989-03-01 NZ NZ228184A patent/NZ228184A/en unknown
- 1989-03-02 ES ES8900759A patent/ES2015629A6/en not_active Expired - Lifetime
- 1989-03-02 KR KR1019890002583A patent/KR890014942A/en not_active Application Discontinuation
- 1989-03-03 CN CN89101860A patent/CN1012004B/en not_active Expired
- 1989-03-03 GB GB8904904A patent/GB2216615B/en not_active Expired - Lifetime
- 1989-03-03 FR FR898902834A patent/FR2628178B1/en not_active Expired - Lifetime
- 1989-03-03 JP JP1050219A patent/JPH01255788A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1268065A (en) * | 1968-09-06 | 1972-03-22 | American Biltrite Rubber Co | High pressure hose and coupling |
| GB1356963A (en) * | 1971-05-18 | 1974-06-19 | Tecalemit Sa | Flexible or semi-flexible pipes |
| US4498691A (en) * | 1981-08-24 | 1985-02-12 | Stratoflex, Inc. | Hose fitting and method of assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2628178B1 (en) | 1991-11-22 |
| GB8904904D0 (en) | 1989-04-12 |
| SE8900649D0 (en) | 1989-02-24 |
| IT1228953B (en) | 1991-07-11 |
| FR2628178A1 (en) | 1989-09-08 |
| AU616476B2 (en) | 1991-10-31 |
| IT8919612A0 (en) | 1989-03-01 |
| CN1037956A (en) | 1989-12-13 |
| SE8900687L (en) | 1989-09-04 |
| AU3020789A (en) | 1989-09-07 |
| AU3021189A (en) | 1989-09-07 |
| ES2015629A6 (en) | 1990-09-01 |
| DE3905306A1 (en) | 1989-09-14 |
| GB2216615B (en) | 1991-10-02 |
| CN1012004B (en) | 1991-03-13 |
| KR890014942A (en) | 1989-10-25 |
| SE8900687D0 (en) | 1989-02-28 |
| JPH01255788A (en) | 1989-10-12 |
| NZ228184A (en) | 1991-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930303 |