WO2014044275A1 - Connecting unit for fastening a hydraulic conduit to a component - Google Patents
Connecting unit for fastening a hydraulic conduit to a component Download PDFInfo
- Publication number
- WO2014044275A1 WO2014044275A1 PCT/DE2013/200171 DE2013200171W WO2014044275A1 WO 2014044275 A1 WO2014044275 A1 WO 2014044275A1 DE 2013200171 W DE2013200171 W DE 2013200171W WO 2014044275 A1 WO2014044275 A1 WO 2014044275A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing cap
- connection unit
- component
- housing
- connection
- 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
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/088—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
- F16L37/0885—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring with access to the split elastic ring from a radial or tangential opening in the coupling
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- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0224—Details of conduits, connectors or the adaptors therefor specially adapted for clutch control
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
Definitions
- the invention relates to a connection unit for fastening a line to a component, in particular for fixing a low-pressure line to a hydraulic cylinder or a hydraulic fluid reservoir in a clutch actuation system of a motor vehicle, with a housing for receiving the line.
- low-pressure lines In clutch actuation systems of motor vehicles, low-pressure lines are used, which carry a hydraulic fluid.
- This low-pressure line is arranged on the one hand on a hydraulic cylinder, preferably a master cylinder of the clutch actuation system and connected to the other side to a hydraulic fluid reservoir.
- FIG. 1 Another known embodiment, which is shown in FIG. 1, comprises a special seal, which is introduced into the low-pressure line 1, which is made of plastic and designed as a bent tube, and is subsequently plugged onto the component connection of the hydraulic cylinder or hydraulic fluid reservoir.
- the installation of this special seal 2 is a lengthy process in which high loads occur. Even after the installation of the specially designed seal on the component connection can escape through stiffnesses between the line 1 and the component connection hydraulic fluid into the environment. In addition, the production of such special seals 2 is very expensive.
- the invention is thus based on the object of specifying a connection unit for fastening a line to a component which, despite cost-effective production, provides an additional Reliable tight connection between a line and a component connection guaranteed.
- this object is achieved in that a sealing cap for enclosing a component connection is mounted in the housing.
- the use of the sealing cap in the housing of the connection unit allows a tight connection of the line to the component. At the same time, the assembly forces are reduced.
- Such a connection unit represents a cost-effective solution, as can be dispensed with separate seals, which are made specifically for the sealing of the connection of the low pressure line with a component connection.
- At least one, inwardly and outwardly arching ring-like elevation is formed on the circumference of the sealing cap.
- This ring-like survey assumes the task of a separate O-ring-like seal.
- the integration of the ring-like elevation into the sealing cap simplifies the assembly of the low-pressure line to the component connection, since numerous assembly steps, such as the insertion or holding of the separate O-ring-like seal in the connection unit, are eliminated.
- the ring-like protrusion prevents leakage of the hydraulic fluid from the connection unit even if there is a high rigidity between the low-pressure line and the component connection.
- the sealing cap on the outer circumference at a line receiving end, a preferably circumferential rib for holding the housing. Because of this circumferential rib, the sealing cap is firmly fixed in the housing during transportation of the connection unit, so that no additional measures for holding must be taken.
- At least one projection extends in the axial direction of the component connection in the interior of the sealing cap near a first conduit receiving opening.
- the sealing cap consists of an elastic, preferably rubber-like, material.
- Such a sealing cap, in which all necessary elevations and Projections are integrated, can be made smaller by two-thirds than the seals described in the prior art.
- a shape of the inner space of the sealing cap is adapted to an outer shape of the component connection, wherein the shape of the inner space of the sealing cap and the outer shape of the component connection are preferably conical.
- the housing in its interior near a second conduit receiving opening on a circumferential recess for receiving the circumferential rib of the sealing cap.
- the housing has two opposite openings for receiving a clip closure for fastening the connection unit to the component. After completion of the assembly of the line to the component via the connection unit, this compound is additionally secured by a metal clip.
- the clip closure represents a detachable connection, so that an exchange of the connection unit or the line is possible at any time.
- a, preferably circumferential, rib-like handle is formed on the outer circumference of the housing.
- This rib-like handle allows a good detection of the connection unit by the fitter. This allows a quick attachment of the connection unit to the component connection of the component. High assembly forces are prevented due to this design.
- the housing consists of a plastic. Due to the smaller failing sealing cap and the housing made of a plastic, a cost-effective production of the connection unit for fastening a low-cost allows pressure line to a component of a clutch actuation system of a motor vehicle.
- FIG. 1 a connection unit according to the prior art
- FIG. 2 a low-pressure line with two connecting units according to the invention
- FIG. 3 an embodiment of the connecting unit according to the invention in two
- Figure 4 section through an embodiment of a sealing cap
- FIG. 5 is a perspective view of the sealing cap according to FIG. 4
- FIG. 6 shows a section through the housing of the connection unit according to FIG. 3
- the low-pressure line 3 comprises one at each of its ends
- connection unit 4 or 5 wherein the connection unit 4, the low-pressure line 3 with a, designed as a master cylinder hydraulic cylinder, which is not shown, connects.
- the connection unit 5 connects the low-pressure line 3 and thus the hydraulic cylinder with a hydraulic fluid reservoir not further shown.
- a device is used for example in a clutch actuation system in a motor vehicle.
- connection unit 5 is constructed identically.
- Figure 3 are two offset by 90 ° longitudinal sections of the connecting unit 4 shown in the assembled state.
- the connection unit 4 is pressed against a component connection 8 of the hydraulic cylinder, which is connected via the connection unit 4 to a line 3 made of plastic.
- the connection unit 4 consists in principle of two parts, wherein a housing 6, to which the low-pressure line 3 is welded, an elastic sealing cap 7 surrounds. (Figure 3a)
- the connection unit 4 may also be an integral part of the formed as a plastic line low-pressure line 3.
- the sealing cap 7 is formed within the housing 6 in the connecting unit 4 and has a conical shape, wherein the conical sealing cap 7 rests against the likewise conical component connection 8 of the hydraulic cylinder.
- a metal clip 9 engages in two mutually opposite apertures 10, 1 1 of the housing 6 and thus secures the mounted low pressure line 3 to the component port 8 of the hydraulic cylinder ( Figure 3b). Due to the conical design of the component connection 8 of the hydraulic cylinder and the likewise conical shape of the sealing cap 7, the assembly force is reduced when the component connection 8 engages in the connection unit 4.
- the metal clip 9 When the connection between the component connection 8 and the low-pressure line 3 is established, the metal clip 9 is inserted into the openings 10, 11 of the connection unit 4 such that a step 12 of the component connection 8 is engaged behind by the metal clip 9 and thus the component connection 8 is fixed is fixed in the connection unit 4.
- the step 12 forms the conclusion of the conical design of the component terminal. 8
- FIG. 4 shows a detailed view of the sealing cap 7.
- the sealing cap 7 concentrically surrounds a first line receiving opening 13, wherein the wall 14 of the sealing cap 7, starting from the first line receiving opening 13 widens conically.
- the sealing cap 7, which is formed from an elastic, plastic-like material, has two outwardly and inwardly bulging ring-like elevations 15, 16.
- This ring-like elevations 15, 16 act as two O-rings, which, however, do not represent separate elements, but are integrally formed in the sealing cap 7.
- the ring-like projections 15, 16 prevent leakage of hydraulic fluid when between the low-pressure line 3 and the component port 8 of the hydraulic cylinder, a high rigidity is present.
- a circumferential rib 17 is formed on the outside of the wall 14, which engages in a recess 19 of the housing 6 to be explained later.
- the first line receiving opening 13 surrounding projection 18 is also formed inside, which points in the axial direction of the sealing cap 7 inwardly in the direction of the component connection 8 of the hydraulic cylinder.
- a bias voltage is generated, which facilitates the assembly process with the component connection 8 of the hydraulic cylinder.
- FIG. 5 shows a perspective view of the sealing cap 7. Since this sealing cap 7 is integrally formed with all sealing elements and fasteners, it is possible that the volume of the sealing cap 7 is reduced to approximately 0.2 cm 3 , compared to 0.6 cm 3 volume of the seal known in the prior art ,
- the housing 6 which receives the sealing cap 7 in an inner space 20.
- a second line receiving opening 21 is surrounded by a circumferential recess 20 in the interior 20, in which, as already explained, the circumferential rib 17 of the sealing cap 7 engages.
- a continuous through the housing wall opening 10 for the metal clip 9 is formed near the hydraulic cylinder.
- an annular rib 22 on the outside of the housing 6 is designed as a handle.
- connection unit 4 for connecting a low-pressure line 3 to a hydraulic cylinder or a hydraulic fluid reservoir is proposed, in which all sealing and fastening elements are integrated in a very small sealing cap 7. Due to the very small sealing cap 7 and the sealing cap 7 receiving plastic housing 6, a cost-saving production is possible, which also minimizes the assembly forces during application of the low pressure line 3 to the component port 8 of the hydraulic cylinder or the hydraulic fluid reservoir. LIST OF REFERENCE NUMBERS
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112013004562.1T DE112013004562A5 (en) | 2012-09-19 | 2013-09-11 | Connection unit for attaching a line to a component, in particular for fixing a low-pressure line to a hydraulic cylinder or a hydraulic fluid reservoir in a clutch actuation system of a motor vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012216702.1 | 2012-09-19 | ||
DE102012216702 | 2012-09-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014044275A1 true WO2014044275A1 (en) | 2014-03-27 |
Family
ID=49585241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2013/200171 WO2014044275A1 (en) | 2012-09-19 | 2013-09-11 | Connecting unit for fastening a hydraulic conduit to a component |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102013218114A1 (en) |
WO (1) | WO2014044275A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016202094A1 (en) | 2016-02-11 | 2017-08-17 | Schaeffler Technologies AG & Co. KG | Conduit system with source sleeve in the connection area between two line sections |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4884829A (en) * | 1986-09-16 | 1989-12-05 | Johannes Schaefer Vorm. Stettiner Schraubenwerke Gmbh & Co. Kg | Plug-in connection for connecting tube and host lines in particular for use in tube-line systems of motor vehicles |
EP0568032A1 (en) * | 1992-04-30 | 1993-11-03 | BERTOLDO & C. S.r.l. | Coupling for metal tubes |
DE19747959A1 (en) * | 1997-10-30 | 1999-05-06 | Mannesmann Vdo Ag | Connector |
-
2013
- 2013-09-11 DE DE102013218114.0A patent/DE102013218114A1/en not_active Withdrawn
- 2013-09-11 DE DE112013004562.1T patent/DE112013004562A5/en not_active Withdrawn
- 2013-09-11 WO PCT/DE2013/200171 patent/WO2014044275A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4884829A (en) * | 1986-09-16 | 1989-12-05 | Johannes Schaefer Vorm. Stettiner Schraubenwerke Gmbh & Co. Kg | Plug-in connection for connecting tube and host lines in particular for use in tube-line systems of motor vehicles |
EP0568032A1 (en) * | 1992-04-30 | 1993-11-03 | BERTOLDO & C. S.r.l. | Coupling for metal tubes |
DE19747959A1 (en) * | 1997-10-30 | 1999-05-06 | Mannesmann Vdo Ag | Connector |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016202094A1 (en) | 2016-02-11 | 2017-08-17 | Schaeffler Technologies AG & Co. KG | Conduit system with source sleeve in the connection area between two line sections |
Also Published As
Publication number | Publication date |
---|---|
DE112013004562A5 (en) | 2015-06-03 |
DE102013218114A1 (en) | 2014-05-15 |
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