GB2042283A - Improved cable bung - Google Patents

Improved cable bung Download PDF

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Publication number
GB2042283A
GB2042283A GB7905010A GB7905010A GB2042283A GB 2042283 A GB2042283 A GB 2042283A GB 7905010 A GB7905010 A GB 7905010A GB 7905010 A GB7905010 A GB 7905010A GB 2042283 A GB2042283 A GB 2042283A
Authority
GB
United Kingdom
Prior art keywords
bung
cable
bore
wall
frusto
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Withdrawn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
GB7905010A
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.)
Rotork Controls Ltd
Original Assignee
Rotork Controls Ltd
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
Application filed by Rotork Controls Ltd filed Critical Rotork Controls Ltd
Priority to GB7905010A priority Critical patent/GB2042283A/en
Publication of GB2042283A publication Critical patent/GB2042283A/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0616—Joints for connecting tubing to casing
    • H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
    • H02G3/0658—Joints for connecting tubing to casing with means for preventing disengagement of conductors with means constricting the conductor-insulation

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cable Accessories (AREA)

Abstract

A cable bung (10) of generally cylindrical form having a wall sealing part (103, f1-f4) and at least a two part bore (131, 133) one part (132) of which is a frusto-conical part spaced axially of the bung axis (AA1) away from the wall sealing part (103, f1-f4). <IMAGE>

Description

SPECIFICATION Improved cable bung This invention relates to a cable bung for use in sealing cables to a wall through which they pass via an aperture in said wall.
According to the invention we provide a cable bung of generally cylindrical form having a wall sealing part and at least a two part bore comprising a frusto-conical part spaced axially of the bung away from said wall sealing part.
We prefer the wall sealing part to be achieved by ferrules having a lead-in part and an abutment part.
Again we prefer the cylindrical part to be of circular cross section but other forms may be used and cylinder is to have herein a wide definition as understood in modern geometry as a solid generated by a straight line moving always parallel to itself and describing a fixed figure.
Generally the cylindrical form will be that of a right cylinder but it may have an axis that is curved or an axis that contains an angle such as a right angle.
The cables are generally sealed to the cable bung by crimping means applied to the outer surface of the bung along the length of the frusto-conical part of the bore.
The invention will be more fully understood from the following description given by way of example only with reference to the single figure of the accompanying drawing.
In the figure a cable bung is seen to comprise a substantially right cylindrical member of circular section shown generally at 10, the diameter of the circular section changing at different parts along its length as shown at parts 1 1 (do), 102 (d2), 103 (d3).
The cable bung is provided with ferrules at f1, f2, f3, f4 and a lead-in frusto-conical part at 11. It also has a two part bore 13"132; part 13t is of right cylindrical form concentric with the part 101 and part 132 is frusto-conical part also concentric with part 1 1.
The ferrules and the part 103 comprise a wall sealing part, part 103 acting as an abutment part when said bung is pushed through an aperture in a wall with the lead-in part 102 leading. It will be seen that frusto-conical part 132 of the bore is spaced axially of the bung along straight axis A1A2 and away from the wall sealing part between 102 and 103. Indeed in this arrangement said frusto-conical part extends outside of said wall shown at W.
A hose clip or crimping ring 14 is adapted to slide over part 1 1 and a plurality of cables shown at 15 pass through the length of the two part bore entering at E1 and coming out at E2. The crimping ring 14 closes the part 1 1 onto the cables 15. The distance I, of the crimping ring 14 rnm the end face of the bung shown as line 16 is important and it depends upon the number of cables n in the said plurality. Imagine in the figure thatn is small then the distance 11 is also small to utilize in the sealing action of the crimping ring 14 the small diameter of the bore in the frustoconical part 132. If nown is large then /1 is large and the crimping ring 14 is piaced so as to utilize the large diameter of the bore in the frusto-conical part 132.
Clearly the ferrules are used in conjunction with part 103 to hold the cable bung in an aperture in any suitable wall. Having sealed the cable bung to a wall any number of cables n within the capacity of bung bore diameter d4 may be sealed effectively by the crimping ring 14.
The cable bung 10 is preferably made of a soft plastics material such as Neopreme rubber able to withstand attack from water and other liquids when in use with inter alia electrical gear.
The cables may if desired be assembled in the cable bung either in the crimped or uncrimped con dition before the cable bung is assembled with a wall member.
As stated above straight axis A1A2 may be curved or contain an angle such as a right angle so that the wires or cables can enter and leave the bung at any desired position and the cable bung would be moulded to the desired configuration.
1. A cable bung of generally cylindrical form having a wall sealing part and at least a two part bore one part of which is a frusto-conical part spaced axially of the bung away from said wall sealing part.
2. The cable bung according to claim 1 wherein the cylindrical form is that of a right cylinder of circular cross section.
3. The cable bung according to claim 1 wherein the cylindrical form has an axis that is curved.
4. The cable bung according to claim 1 wherein the cylindrical form has an axis that contains an angle.
5. The cable bung according to any preceding claim wherein the bung is provided with crimping means that co-operates with an outer surface of the bung along the length of the frusto-conical part of the bore.
6. The cable bung according to any preceding claim wherein the wall sealing part includes a lead in part, one or more external ferrules and an abutment flange.
7. A cable bung according to any preceding claim when made of a soft plastics material.
8. A cable bung constructed and arranged substantially as hereinbefore described and as shown in the single figure of the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Improved cable bung This invention relates to a cable bung for use in sealing cables to a wall through which they pass via an aperture in said wall. According to the invention we provide a cable bung of generally cylindrical form having a wall sealing part and at least a two part bore comprising a frusto-conical part spaced axially of the bung away from said wall sealing part. We prefer the wall sealing part to be achieved by ferrules having a lead-in part and an abutment part. Again we prefer the cylindrical part to be of circular cross section but other forms may be used and cylinder is to have herein a wide definition as understood in modern geometry as a solid generated by a straight line moving always parallel to itself and describing a fixed figure. Generally the cylindrical form will be that of a right cylinder but it may have an axis that is curved or an axis that contains an angle such as a right angle. The cables are generally sealed to the cable bung by crimping means applied to the outer surface of the bung along the length of the frusto-conical part of the bore. The invention will be more fully understood from the following description given by way of example only with reference to the single figure of the accompanying drawing. In the figure a cable bung is seen to comprise a substantially right cylindrical member of circular section shown generally at 10, the diameter of the circular section changing at different parts along its length as shown at parts 1 1 (do), 102 (d2), 103 (d3). The cable bung is provided with ferrules at f1, f2, f3, f4 and a lead-in frusto-conical part at 11. It also has a two part bore 13"132; part 13t is of right cylindrical form concentric with the part 101 and part 132 is frusto-conical part also concentric with part 1 1. The ferrules and the part 103 comprise a wall sealing part, part 103 acting as an abutment part when said bung is pushed through an aperture in a wall with the lead-in part 102 leading. It will be seen that frusto-conical part 132 of the bore is spaced axially of the bung along straight axis A1A2 and away from the wall sealing part between 102 and 103. Indeed in this arrangement said frusto-conical part extends outside of said wall shown at W. A hose clip or crimping ring 14 is adapted to slide over part 1 1 and a plurality of cables shown at 15 pass through the length of the two part bore entering at E1 and coming out at E2. The crimping ring 14 closes the part 1 1 onto the cables 15. The distance I, of the crimping ring 14 rnm the end face of the bung shown as line 16 is important and it depends upon the number of cables n in the said plurality. Imagine in the figure thatn is small then the distance 11 is also small to utilize in the sealing action of the crimping ring 14 the small diameter of the bore in the frustoconical part 132. If nown is large then /1 is large and the crimping ring 14 is piaced so as to utilize the large diameter of the bore in the frusto-conical part 132. Clearly the ferrules are used in conjunction with part 103 to hold the cable bung in an aperture in any suitable wall. Having sealed the cable bung to a wall any number of cables n within the capacity of bung bore diameter d4 may be sealed effectively by the crimping ring 14. The cable bung 10 is preferably made of a soft plastics material such as Neopreme rubber able to withstand attack from water and other liquids when in use with inter alia electrical gear. The cables may if desired be assembled in the cable bung either in the crimped or uncrimped con dition before the cable bung is assembled with a wall member. As stated above straight axis A1A2 may be curved or contain an angle such as a right angle so that the wires or cables can enter and leave the bung at any desired position and the cable bung would be moulded to the desired configuration. CLAIMS
1. A cable bung of generally cylindrical form having a wall sealing part and at least a two part bore one part of which is a frusto-conical part spaced axially of the bung away from said wall sealing part.
2. The cable bung according to claim 1 wherein the cylindrical form is that of a right cylinder of circular cross section.
3. The cable bung according to claim 1 wherein the cylindrical form has an axis that is curved.
4. The cable bung according to claim 1 wherein the cylindrical form has an axis that contains an angle.
5. The cable bung according to any preceding claim wherein the bung is provided with crimping means that co-operates with an outer surface of the bung along the length of the frusto-conical part of the bore.
6. The cable bung according to any preceding claim wherein the wall sealing part includes a lead in part, one or more external ferrules and an abutment flange.
7. A cable bung according to any preceding claim when made of a soft plastics material.
8. A cable bung constructed and arranged substantially as hereinbefore described and as shown in the single figure of the accompanying drawing.
GB7905010A 1979-02-13 1979-02-13 Improved cable bung Withdrawn GB2042283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7905010A GB2042283A (en) 1979-02-13 1979-02-13 Improved cable bung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7905010A GB2042283A (en) 1979-02-13 1979-02-13 Improved cable bung

Publications (1)

Publication Number Publication Date
GB2042283A true GB2042283A (en) 1980-09-17

Family

ID=10503156

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7905010A Withdrawn GB2042283A (en) 1979-02-13 1979-02-13 Improved cable bung

Country Status (1)

Country Link
GB (1) GB2042283A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116781A (en) * 1982-03-09 1983-09-28 Tore Georg Palmaer Cable support
FR2539927A1 (en) * 1983-01-20 1984-07-27 Messerschmitt Boelkow Blohm DEVICE FOR SUPPORTING CABLES OR WIRES IN OPENINGS
GB2249874A (en) * 1990-11-17 1992-05-20 Motorola Gmbh Elastomeric seating member.
US5732440A (en) * 1996-02-06 1998-03-31 Osram Sylvania Inc. Low insertion force grommet

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116781A (en) * 1982-03-09 1983-09-28 Tore Georg Palmaer Cable support
FR2539927A1 (en) * 1983-01-20 1984-07-27 Messerschmitt Boelkow Blohm DEVICE FOR SUPPORTING CABLES OR WIRES IN OPENINGS
GB2249874A (en) * 1990-11-17 1992-05-20 Motorola Gmbh Elastomeric seating member.
GB2249874B (en) * 1990-11-17 1994-09-21 Motorola Gmbh Elastomeric seating member
US5732440A (en) * 1996-02-06 1998-03-31 Osram Sylvania Inc. Low insertion force grommet

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Legal Events

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