EP1440268A1 - Bushing and method for leading one or more cables through a wall aperture - Google Patents
Bushing and method for leading one or more cables through a wall apertureInfo
- Publication number
- EP1440268A1 EP1440268A1 EP02775632A EP02775632A EP1440268A1 EP 1440268 A1 EP1440268 A1 EP 1440268A1 EP 02775632 A EP02775632 A EP 02775632A EP 02775632 A EP02775632 A EP 02775632A EP 1440268 A1 EP1440268 A1 EP 1440268A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cables
- casing
- bushing
- wall aperture
- filling element
- 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- Withdrawn
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
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/14—Sealing for double-walled or multi-channel pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
- B60R16/0215—Protecting, fastening and routing means therefor
- B60R16/0222—Grommets
-
- 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
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/10—Sealing by using sealing rings or sleeves only
Definitions
- the present invention relates to a bushing and a method for leading one or more cables through a wall aperture, whereby the bushing incorporates not only a casing which engages with the wall aperture but also filling means for filling space within the casing.
- Such a bushing is known from US-A-3 880453.
- the filling means comprises a polymer compound.
- a problem with that bushing is that when the polymer compound has solidified the bushing becomes permanent, which means that it cannot thereafter easily be taken apart for replacement, removal or addition of cables. Such taking apart has therefore to entail first laboriously removing the solidified polymer compound from the cables and then replacing it with fresh polymer compound when the bushing has been put together again.
- One object of the invention is to provide a bushing/cable lead-through of the kind indicated in the introduction which solves the abovementioned problem and which can in a simple, flexible, sealing and dismantlable manner accommodate a varying number of cables.
- the filling means comprises a filling element made of flexible material and provided with slitting to accommodate and sealingly enclose said one or more cables continuously through the casing.
- a slit filling element made of a flexible material makes it possible by varying compression of the flexible material in a single casing to provide a noise-damping, water-tight and at the same time dismantlable bushing for a varying number of cables.
- the slitting comprises two or more slits which may extend radially with respect to a central axis of the filling element. This makes it possible to ensure that cables varying in number and size are suitably distributed in both radial and angular directions in the filling element.
- the casing may be a rubber bellows with a rotationally symmetrical shape which narrows with increasing distance from the wall aperture.
- the casing also advantageously has peripheral stages at which it can be cut off as appropriate to the combined thickness of the cluster of cables to be accommodated in the bushing.
- Fig. 1 depicts partly in longitudinal section a bushing according to the invention, when fitted in a wall aperture so as to be ready for use;
- Fig. 2 depicts a bushing according to the invention corresponding to Fig. 1, in use;
- Fig. 3 is a cross-sectional view of a filling element according to the invention, when ready for use;
- Fig. 4 is a view corresponding to Fig. 3 of a filling element according to the invention, in use. DESCRIPTION OF AN EMBODIMENT
- the bushing denoted generally by ref. 10 in Figs. 1 and 2 incorporates an elastic casing or a bellows 12 made of rubber or similar material and, accommodated in it, a filling element 22 made of a flexible material such as waterproof foam plastic with closed pores.
- the bushing 10 is shown fitted in a circular aperture 28 in a wall 26, e.g. a dividing wall between an engine compartment and a cab or passenger compartment of a motor vehicle.
- the rotationally symmetrical casing 16 narrows stage by stage with increasing distance from the wall 26.
- the bushing 12 is provided with a peripherally situated recess 14 which engages with the edge of the wall aperture 28 and holds the bushing firmly in the wall 26.
- the filling element 22 has an external shape which substantially corresponds to the shape of the inside of the bushing 12 and has at its broader end a radial ledge 23 which engages behind the recess 14 of the bushing 12 in order to retain the filling element 22 within the bushing 12. If the bushing element 22 is made of a soft foam plastic, however, it may possibly have a simple conical shape.
- the filling element 22 is provided with slitting in the form of a multiplicity of radial slits 24 which extend radially inwards from the outside of the filling element 22 and along the whole length of the filling element 22.
- each slit 24 can accommodate one or more cables or the like 30 sealingly enclosed by flexible material of the filling element 22 when the latter is inserted in the casing 12.
- the casing and the filling element 22 may be cut off at a larger diameter such as defined in more detail by a section 20 (Fig. 1) just before a stop flange 18 on a peripherally situated portion 16 of the casing 12.
- the cluster of cables 30 may thereafter be secured in the casing 12 by a collar band 34 held in position by the stop flange 18 at the free end of the casing 12.
- the bushing 10 is fitted as follows: The casing 12 and the filling element 22 are first cut as necessary to create a suitable diameter of the opening 19 at the narrow end of the casing 12 to allow all the desired cables, including any contact devices 32, to be led through. Thereafter the filling element 22 is taken out and the cables are threaded one by one through the casing 12. Outside the casing 12, the cables 30 are then pressed radially into radial slits 24 in the filling element 22. This is followed by pushing the filling element 22, with the cables 30, into position in the casing 12. Where necessary, a collar band 34 is also tightened round the portion 16 to hold the cables 30 securely at the narrow end of the casing 12. Finally, the casing 12 is fixed in the wall 26 by squeezing it together somewhat and introducing it into the wall aperture 28 so that the recess 14 is caused to engage about the edge region of the wall aperture 28 when the casing 12 is allowed to expand again.
- the bushing 10 When the bushing 10 is not in use, as in Fig. 1, it serves to seal the wall aperture 28 and is ready for future laying of cables, e.g. on the occasion of retrofitting of extra equipment in a vehicle cab.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Installation Of Indoor Wiring (AREA)
- Cable Accessories (AREA)
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
- Insulating Bodies (AREA)
Abstract
Bushing (10) for one or more cables (30) through a wall aperture (28), comprising not only a casing (12) which engages with the wall aperture but also filling means (22) to fill space in the casing. The filling means comprises a filling element (22) made of flexible material and provided with slitting (24) in order to accommodate and sealingly enclose said one or more cables (30) continuously through the casing (12), and the slitting comprises two or more slits (24). The invention also relates to a method for enclosing one or more cables through a wall aperture.
Description
Bushing and method for leading one or more cables through a wall aperture
TECHNICAL FIELD
The present invention relates to a bushing and a method for leading one or more cables through a wall aperture, whereby the bushing incorporates not only a casing which engages with the wall aperture but also filling means for filling space within the casing.
STATE OF THE ART
Such a bushing is known from US-A-3 880453. In the case of that bushing, the filling means comprises a polymer compound. A problem with that bushing is that when the polymer compound has solidified the bushing becomes permanent, which means that it cannot thereafter easily be taken apart for replacement, removal or addition of cables. Such taking apart has therefore to entail first laboriously removing the solidified polymer compound from the cables and then replacing it with fresh polymer compound when the bushing has been put together again.
SUMMARY OF THE INVENTION
One object of the invention is to provide a bushing/cable lead-through of the kind indicated in the introduction which solves the abovementioned problem and which can in a simple, flexible, sealing and dismantlable manner accommodate a varying number of cables.
This is achieved by features indicated in the claims set out below.
According to the invention, the filling means comprises a filling element made of flexible material and provided with slitting to accommodate and sealingly enclose said one or more cables continuously through the casing.
Using instead of a filling compound a slit filling element made of a flexible material makes it possible by varying compression of the flexible material in a single casing to provide a noise-damping, water-tight and at the same time dismantlable bushing for a varying number of cables.
The slitting comprises two or more slits which may extend radially with respect to a central axis of the filling element. This makes it possible to ensure that cables varying in number and size are suitably distributed in both radial and angular directions in the filling element.
Whereas the filling element is preferably made of foam plastic material, the casing may be a rubber bellows with a rotationally symmetrical shape which narrows with increasing distance from the wall aperture. The casing also advantageously has peripheral stages at which it can be cut off as appropriate to the combined thickness of the cluster of cables to be accommodated in the bushing.
Other features and advantages of the invention are indicated by the claims and the following detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 depicts partly in longitudinal section a bushing according to the invention, when fitted in a wall aperture so as to be ready for use;
Fig. 2 depicts a bushing according to the invention corresponding to Fig. 1, in use;
Fig. 3 is a cross-sectional view of a filling element according to the invention, when ready for use; and
Fig. 4 is a view corresponding to Fig. 3 of a filling element according to the invention, in use.
DESCRIPTION OF AN EMBODIMENT
The bushing denoted generally by ref. 10 in Figs. 1 and 2 incorporates an elastic casing or a bellows 12 made of rubber or similar material and, accommodated in it, a filling element 22 made of a flexible material such as waterproof foam plastic with closed pores. The bushing 10 is shown fitted in a circular aperture 28 in a wall 26, e.g. a dividing wall between an engine compartment and a cab or passenger compartment of a motor vehicle. The rotationally symmetrical casing 16 narrows stage by stage with increasing distance from the wall 26. At its broader end the bushing 12 is provided with a peripherally situated recess 14 which engages with the edge of the wall aperture 28 and holds the bushing firmly in the wall 26.
In the embodiment depicted, the filling element 22 has an external shape which substantially corresponds to the shape of the inside of the bushing 12 and has at its broader end a radial ledge 23 which engages behind the recess 14 of the bushing 12 in order to retain the filling element 22 within the bushing 12. If the bushing element 22 is made of a soft foam plastic, however, it may possibly have a simple conical shape.
As most clearly indicated in Figs. 3 and 4, the filling element 22 is provided with slitting in the form of a multiplicity of radial slits 24 which extend radially inwards from the outside of the filling element 22 and along the whole length of the filling element 22. As illustrated by Figs. 2 and 4, each slit 24 can accommodate one or more cables or the like 30 sealingly enclosed by flexible material of the filling element 22 when the latter is inserted in the casing 12.
If two or more cables 30 to be led through have a larger combined thickness than the diameter of the opening 19 at the free end of the casing 12, the casing and the filling element 22 may be cut off at a larger diameter such as defined in more detail by a section 20 (Fig. 1) just before a stop flange 18 on a peripherally situated portion 16 of the casing 12. As may be seen in Fig. 2, the cluster of cables 30 may thereafter be secured in the
casing 12 by a collar band 34 held in position by the stop flange 18 at the free end of the casing 12.
The bushing 10 is fitted as follows: The casing 12 and the filling element 22 are first cut as necessary to create a suitable diameter of the opening 19 at the narrow end of the casing 12 to allow all the desired cables, including any contact devices 32, to be led through. Thereafter the filling element 22 is taken out and the cables are threaded one by one through the casing 12. Outside the casing 12, the cables 30 are then pressed radially into radial slits 24 in the filling element 22. This is followed by pushing the filling element 22, with the cables 30, into position in the casing 12. Where necessary, a collar band 34 is also tightened round the portion 16 to hold the cables 30 securely at the narrow end of the casing 12. Finally, the casing 12 is fixed in the wall 26 by squeezing it together somewhat and introducing it into the wall aperture 28 so that the recess 14 is caused to engage about the edge region of the wall aperture 28 when the casing 12 is allowed to expand again.
When the bushing 10 is not in use, as in Fig. 1, it serves to seal the wall aperture 28 and is ready for future laying of cables, e.g. on the occasion of retrofitting of extra equipment in a vehicle cab.
Claims
1. A bushing (10) for one or more cables (30) through a wall aperture (28), comprising a casing (12) which engages with the wall aperture (28) and filling means (22) for filling space in the casing, characterised in that the filling means comprises a filling element (22) made of flexible material and provided with slitting (24) to accommodate and sealingly surround said one or more cables (30) continuously through the casing (12), and that the slitting comprises two or more slits (24).
2. A bushing (10) according to claim 1, character is e din that the slits (24) extend radially with respect to a central axis of the filling element (22).
3. A bushing (10) according to either of the foregoing claims, characterised in that the flexible material is a foam plastic material.
4. A bushing (10) according to any one of the foregoing claims, characterised in that the casing (12) and the filling element (22) have a rotationally symmetrical shape which narrows with increasing distance from the wall aperture (28).
5. A bushing (10) according to any one of the foregoing claims, characterised in that the casing (12) comprises peripheral stages (16) at which it is intended to be cut off as appropriate to a combined thickness of said cables (30).
6. A method for sealingly enclosing one or more cables through a wall aperture (28), characterised by slitting (24) of a filling element (22) made of a flexible material, so that the slitting (24) comprises a multiplicity of slit sections; introducing said cables into the slitting so that said cables are sealingly enclosed by the slitting; placing the filling element by a casing in order to fill space therein; and localisation of the casing, including the filling element (22) and said cables, in the wall aperture (28).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0103169A SE519949C2 (en) | 2001-09-25 | 2001-09-25 | Execution and way of conducting one or more lines through a wall opening |
SE0103169 | 2001-09-25 | ||
PCT/SE2002/001739 WO2003027556A1 (en) | 2001-09-25 | 2002-09-24 | Bushing and method for leading one or more cables through a wall aperture |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1440268A1 true EP1440268A1 (en) | 2004-07-28 |
Family
ID=20285421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02775632A Withdrawn EP1440268A1 (en) | 2001-09-25 | 2002-09-24 | Bushing and method for leading one or more cables through a wall aperture |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1440268A1 (en) |
JP (1) | JP2005504494A (en) |
BR (1) | BR0212653A (en) |
SE (1) | SE519949C2 (en) |
WO (1) | WO2003027556A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010014721U1 (en) * | 2010-10-28 | 2012-01-30 | Doyma Gmbh & Co | sealing device |
CN102767646B (en) * | 2012-07-03 | 2015-10-28 | 朱新平 | A kind of long cable section of ingoing line seal arrangement and there is the distribution box of sealing device |
JP5956954B2 (en) * | 2013-06-05 | 2016-07-27 | 日立建機株式会社 | Construction structure of engine control cable for construction machinery |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2922836A (en) * | 1956-02-20 | 1960-01-26 | Chrysler Corp | Grommet |
US4797513A (en) * | 1987-11-25 | 1989-01-10 | Yazaki Corporation | Grommet with wires sealed thereto and method of forming same |
US6107574A (en) * | 1998-02-24 | 2000-08-22 | Chang; Rong J. | Sealing article |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT384692B (en) * | 1983-05-20 | 1987-12-28 | Werner Hauff | BUSHING FOR PIPES, LIKE CABLES, TUBES OR THE LIKE, THROUGH A WALL OPENING AND DEVICE FOR PRODUCING SUCH A THROUGHOUT IN A CONCRETE WALL |
JPH08129918A (en) * | 1994-10-28 | 1996-05-21 | Sumitomo Wiring Syst Ltd | Grommet |
JPH1089544A (en) * | 1996-09-11 | 1998-04-10 | Yazaki Corp | Soundproofing grommet |
-
2001
- 2001-09-25 SE SE0103169A patent/SE519949C2/en not_active IP Right Cessation
-
2002
- 2002-09-24 BR BR0212653-2A patent/BR0212653A/en not_active IP Right Cessation
- 2002-09-24 JP JP2003531077A patent/JP2005504494A/en active Pending
- 2002-09-24 EP EP02775632A patent/EP1440268A1/en not_active Withdrawn
- 2002-09-24 WO PCT/SE2002/001739 patent/WO2003027556A1/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2922836A (en) * | 1956-02-20 | 1960-01-26 | Chrysler Corp | Grommet |
US4797513A (en) * | 1987-11-25 | 1989-01-10 | Yazaki Corporation | Grommet with wires sealed thereto and method of forming same |
US6107574A (en) * | 1998-02-24 | 2000-08-22 | Chang; Rong J. | Sealing article |
Non-Patent Citations (1)
Title |
---|
See also references of WO03027556A1 * |
Also Published As
Publication number | Publication date |
---|---|
SE0103169L (en) | 2003-03-26 |
WO2003027556A1 (en) | 2003-04-03 |
BR0212653A (en) | 2004-08-24 |
SE0103169D0 (en) | 2001-09-25 |
SE519949C2 (en) | 2003-04-29 |
JP2005504494A (en) | 2005-02-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5337447A (en) | Grommet | |
US9216530B2 (en) | Connector cover | |
US4007941A (en) | Seal for duct terminator | |
EP3451464A1 (en) | Interconnection seal | |
JPH06351133A (en) | Waterproof construction and waterproof method for wire harness | |
EP0731000A2 (en) | Grommet | |
US20040154819A1 (en) | Grommet for a wire harness | |
CN112636284B (en) | Grommet and wire harness | |
US9673600B2 (en) | Grommet | |
JP2008234904A (en) | Grommet and its assembly method | |
WO2014175045A1 (en) | Grommet | |
JP6465988B2 (en) | Seal mold split structure for combination cable and manufacturing method thereof | |
US10183636B2 (en) | Sealing grommet and cable feedthrough containing a sealing grommet | |
AU2010354869B2 (en) | Grommet | |
EP1440268A1 (en) | Bushing and method for leading one or more cables through a wall aperture | |
US20180294633A1 (en) | Sealable cable port assemblies for telecommunications enclosure | |
US20160318464A1 (en) | Grommet bracket | |
WO1995032107A1 (en) | Submergible seal with diffusive radial barrier | |
JP2017229189A (en) | Grommet | |
WO2002027884A3 (en) | High temperature slip-sealing grommet systems | |
JP2023013143A (en) | Grommet and wiring harness | |
JP3476490B2 (en) | Grommet | |
JP5986849B2 (en) | Grommet and sealed structure | |
JP5262618B2 (en) | Grommet | |
KR200272133Y1 (en) | waterproof packing ring |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20040426 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
17Q | First examination report despatched |
Effective date: 20050429 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20060404 |