GB2170544A - Clip fastenings for troughing - Google Patents

Clip fastenings for troughing Download PDF

Info

Publication number
GB2170544A
GB2170544A GB8502880A GB8502880A GB2170544A GB 2170544 A GB2170544 A GB 2170544A GB 8502880 A GB8502880 A GB 8502880A GB 8502880 A GB8502880 A GB 8502880A GB 2170544 A GB2170544 A GB 2170544A
Authority
GB
United Kingdom
Prior art keywords
cover
clip
trough
clips
resilient
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.)
Pending
Application number
GB8502880A
Other versions
GB8502880D0 (en
Inventor
Michael Dyment
David Edward Layton
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.)
EGA Ltd
Original Assignee
EGA 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 EGA Ltd filed Critical EGA Ltd
Priority to GB8502880A priority Critical patent/GB2170544A/en
Publication of GB8502880D0 publication Critical patent/GB8502880D0/en
Priority to CN 86100952 priority patent/CN86100952A/en
Publication of GB2170544A publication Critical patent/GB2170544A/en
Pending 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/20—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening
    • F16B2/22—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material
    • F16B2/24—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal
    • F16B2/241—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal of sheet metal
    • F16B2/243—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal of sheet metal internal, i.e. with spreading action
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
    • F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
    • F16B5/0642—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship the plates being arranged one on top of the other and in full close contact with each other
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
    • F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
    • F16B5/0664—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship at least one of the sheets or plates having integrally formed or integrally connected snap-in-features
    • 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
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H02G3/0418—Covers or lids; Their fastenings
    • 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
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/04—Installations of electric cables or lines in or on the ground or water in surface ducts; Ducts or covers therefor
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/005—Means to increase the friction-coefficient

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Clamps And Clips (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

Troughing comprising a trough (3) with a substantially rectangular, corrugated cover (2) secured to the walls of the trough by means of metal resilient clips (1). The clips are in strip form and are shaped to engage the edges of the cover and to be an interference fit with the inside opposed walls of the trough. <IMAGE>

Description

SPECIFICATION Improvements in and relating to troughing This invention relates to troughing.
Signal cables and traction cables for railways are currently carried alongside the railway tracks in concrete ducts or troughs which have a concrete lid or cover on top in order to prevent unauthorised access and also the accumulation of debris within the trough. The concrete covers are heavy, quite expensive and prone to damage in handling. They need to be removeable for occasional servicing reasons.
According to a first aspect of the present invention, there is provided a resilient clip arrangement for securing a substantially rectangular cover on a trough, the clip arrangement including two clips each having a first part for engagement about respective opposed edges of the cover and the clips each having a second part arranged to bear against a respective opposed wall of the trough, the clips being arranged, when fitted about the opposed edges of the cover and securing the cover on the trough, to bear against opposed walls of the trough in reaction against one another.
The clips may be arranged to bear against the inside walls of the trough.
According to a second aspect of the present invention, there is provided a resilient clip for incorporation in the arrangement substantially as defined in the first aspect of the invention, the clip being made of resilient strip material shaped to have, proceeding from one end to the other, a first portion which is substantially planar and with an underside for bearing on a top surface of a said cover, then a second portion extending substantially normal to said first portion for lying adjacent the edge of the cover, then a third portion extending substantially parallel to, facing and beyond said first portion so as to be able to underlie the underside of the cover, said first, second and third portions constituting said first part of the clip, and the clip further including a fourth portion extending from said third portion to said other end and being bent so as to form said second part.
The or each clip may be made of metal.
According to a third aspect of the present invention, there is provided a cover for covering a trough, the cover having a resilient clip arrangement in accordance with the first aspect of the invention or having two clips each in accordance with the second aspect of the invention, and the covering being in the form of a substantially rectangular plate.
Preferably, the plate is corrugated.
Preferably, the plate is made from unplasticised polyvinylchloride (UPVC).
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 drawings, in which:~ Figure 1 is a diagrammatic perspective view of a clip in accordance with the invention, Figure 2 is a side view of the clip shown in Fig. 1, Figure 3 diagrammatically illustrates an end view of a concrete trough and how a UPVC cover may be fitted on the trough by means of the clips according to the invention, Figure 4 is a plan view of the cover, Figure 5 is a cross-sectional view taken on the line X-X of Fig. 4, and Figure 6 is a perspective view illustrating how the cover may be secured to the trough by means of the clips according to the invention.
Referring firstly to Figs. 1 and 2 of the drawings, a metal resilient clip 1 is illustrated, the clip being adapted for securing a substantially rectangular cover 2 (Figs. 3 to 6) to the walls of a trough 3.
The clip 1 is in strip form and is shaped to have, proceeding from one end to the other, a first portion 1A which is substantially planar and has a underside for bearing on a top surface of the cover 2, then a second portion 1B extending substantially normal to the first por tion 1A for lying adjacent the edge of the cover 2, and then a third portion 1C extending substantially parallel to, facing and beyond the first portion 1A so as to be able to underlie the underside of the cover 2 when the clip 1 is fitted about the edge of the cover 2.
Proceeding beyond the third portion 1C there is a fourth portion 1D which is bent so as to be arranged to bear against an inside wall 3A of the trough 3 to which the cover 2 is to be secured.
Preferably, and as shown, the fourth portion 1D is provided with means to cause the clip 1 to have an interference fit with the associated wall 3A of the trough, this means in the form illustrated being constituted by two rows of dimples 4. In addition or alternatively, the clip 1 may be provided with a cutout portion (not shown) extending from the portion 1D and arranged to bear against the wall 3A.
The cover 2 is preferably provided with corrugations 2A which run across the cover from edge to edge, the cover being intended to be fitted on the trough 3 with the corrugations 2A running across the width of the trough 3.
Preferably, the dimensions of the cover 2 are such that the length is 497 mm and the width about 500 mm. The thickness of the cover 2 can be about 3.5 mm whilst the corrugations can extend over a height of about 11 mm with the distances between sets of corrugations being about 40 mm.
It will be appreciated that, with an estimated weight of 1.55 kg per cover, the covers will be considerably lighter than the concrete covers at present in use.
As illustrated in Figs. 3 and 6, the covers 2 can be securely fitted to the troughs 3 by means of pairs of opposed clips 1 bearing against the respective inside walls 3A in reaction against one another. The clips 1 are dimensioned so that their first portions 1A can fit in respective lands of the corrugations 2A.

Claims (13)

1. A resilient clip arrangement for securing a substantially rectangular cover on a trough, the clip arrangement including two clips each having a first part for engagement about respective opposed edges of the cover and the clips each having a second part arranged to bear against a respective opposed wall of the trough, the clips being arranged, when fitted about the opposed edges of the cover and securing the cover on the trough, to bear against opposed walls of the trough in reaction against one another.
2. An arrangement according to claim 1, wherein each clip is arranged to bear against the inside walls of the trough.
3. A resilient clip arrangement, substantially as hereinbefore described with reference to the accompanying drawings.
4. A resilient clip for incorporation in the arrangement according to claim 1, 2 or 3, the clip being made of resilient strip material shaped to have, proceeding from one end to the other, a first portion which is substantially planar and with an underside for bearing on a top surface of a said cover, then a second portion extending substantially normal to said first portion for lying adjacent the edge of the cover, then a third portion extending substantially parallel to, facing and beyond said first portion so as to be able to underlie the underside of the cover, said first, second and third portions constituting said first part of the clip, and the clip further including a fourth portion extending from said third portion to said other end and being bent so as to form said second part.
5. A resilient clip according to claim 4, wherein it is made of metal.
6. A clip according to claim 4 or 5, wherein said second part of the clip includes rows of dimples to cause the clip to have an interference fit with the associated wall of the trough.
7. A clip according to claim 4 or 5, wherein said second part of the clip is provided with a cut-out portion arranged to bear against the associated wall of the trough.
8. A resilient clip according to any one of claims 4 to 7, substantially as hereinbefore described with reference to the accompanying drawings.
9. A cover for cqvering a trough, the cover having a resilient clip arrangement according to claim 1, 2 or 3 or having two clips each according to any one of claims 4 to 8, and the cover being in the form of a substantially rectangular plate.
10. A cover according to claim 9, the cover being corrugated.
11. A cover according to claim 9 or 10 and being made from unplasticised polyvinylchloride.
12. A cover according to claim 9, 10 or 11, wherein each clip is fitted in a respective land of the corrugations of the cover.
13. A cover according to any one of claims 9 to 12, substantially as hereinbefore described with reference to the accompanying drawings.
GB8502880A 1985-02-05 1985-02-05 Clip fastenings for troughing Pending GB2170544A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8502880A GB2170544A (en) 1985-02-05 1985-02-05 Clip fastenings for troughing
CN 86100952 CN86100952A (en) 1985-02-05 1986-02-05 Improvement about troughing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8502880A GB2170544A (en) 1985-02-05 1985-02-05 Clip fastenings for troughing

Publications (2)

Publication Number Publication Date
GB8502880D0 GB8502880D0 (en) 1985-03-06
GB2170544A true GB2170544A (en) 1986-08-06

Family

ID=10573965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8502880A Pending GB2170544A (en) 1985-02-05 1985-02-05 Clip fastenings for troughing

Country Status (2)

Country Link
CN (1) CN86100952A (en)
GB (1) GB2170544A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2658058A3 (en) * 2012-04-27 2014-08-13 Ralf Zürcher Storing device for the cable of railway sections
WO2018046897A1 (en) * 2016-09-06 2018-03-15 Lucas Innovations Limited A walkway

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896475A (en) * 2012-11-06 2013-01-30 如皋市凯凯电信器材有限公司 U-shaped wire rack production process
CN103972831A (en) * 2014-05-20 2014-08-06 攀钢集团工程技术有限公司 Cable bridge and welding-free hasp lock of cable bridge cover plate
CN107508211B (en) * 2017-08-18 2020-05-22 扬中市扬子铝加工有限公司 Aluminum alloy chute that radiating effect is good

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB450641A (en) * 1935-01-15 1936-07-22 United Carr Fastener Corp Improvements in and relating to fasteners for boxes, cabinets, cases and the like
GB818932A (en) * 1956-08-09 1959-08-26 Gen Electric Co Ltd Improvements in or relating to means for supporting inserts in body mouths, for example, louvres in electric lighting fittings
GB823004A (en) * 1956-11-02 1959-11-04 United Carr Fastener Corp Improvements in or relating to fastening devices
GB840556A (en) * 1957-07-11 1960-07-06 Ft Products Ltd Improvements in and relating to fasteners
GB848848A (en) * 1956-11-02 1960-09-21 United Carr Fastener Corp Improvements in fastening devices
GB871532A (en) * 1957-03-14 1961-06-28 Ft Products Ltd Improvements in and relating to fasteners

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB450641A (en) * 1935-01-15 1936-07-22 United Carr Fastener Corp Improvements in and relating to fasteners for boxes, cabinets, cases and the like
GB818932A (en) * 1956-08-09 1959-08-26 Gen Electric Co Ltd Improvements in or relating to means for supporting inserts in body mouths, for example, louvres in electric lighting fittings
GB823004A (en) * 1956-11-02 1959-11-04 United Carr Fastener Corp Improvements in or relating to fastening devices
GB848848A (en) * 1956-11-02 1960-09-21 United Carr Fastener Corp Improvements in fastening devices
GB871532A (en) * 1957-03-14 1961-06-28 Ft Products Ltd Improvements in and relating to fasteners
GB840556A (en) * 1957-07-11 1960-07-06 Ft Products Ltd Improvements in and relating to fasteners

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2658058A3 (en) * 2012-04-27 2014-08-13 Ralf Zürcher Storing device for the cable of railway sections
WO2018046897A1 (en) * 2016-09-06 2018-03-15 Lucas Innovations Limited A walkway

Also Published As

Publication number Publication date
GB8502880D0 (en) 1985-03-06
CN86100952A (en) 1986-08-06

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