GB2238594A - Cable handling chain - Google Patents
Cable handling chain Download PDFInfo
- Publication number
- GB2238594A GB2238594A GB9101732A GB9101732A GB2238594A GB 2238594 A GB2238594 A GB 2238594A GB 9101732 A GB9101732 A GB 9101732A GB 9101732 A GB9101732 A GB 9101732A GB 2238594 A GB2238594 A GB 2238594A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chain
- pair
- wall portion
- end wall
- wall portions
- 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
- 238000010137 moulding (plastic) Methods 0.000 claims abstract 2
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
- H02G11/003—Arrangements of electric cables or lines between relatively-movable parts using gravity-loaded or spring-loaded loop
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/06—Distributing electric power; Cable networks; Conduits for cables
-
- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/12—Hauling- or hoisting-chains so called ornamental chains
- F16G13/16—Hauling- or hoisting-chains so called ornamental chains with arrangements for holding electric cables, hoses, or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
A cable/hose handling chain comprising: a plurality of hingedly connected chain links 10 each including a pair of separate attachment members 14, with each attachment member 14 of each pair comprising a body formed by a unitary plastic moulding having an upper wall portion 16 connected to a lower wall portion 18 by an end wall portion 19 to define a compartment for the reception of cables or hoses; and the attachment members of each pair being positioned with their respective end wall portions 19 side by side, said end wall portions 19 being provided with cooperating location means comprising laterally extending projections 25 and recesses 26; and fixing means 31 passing through the side by side end wall portions for fixing the attachment members to one another. <IMAGE>
Description
CABLE HANDLING CHAIN
The present invention relates to a cable/hose handling chain.
In certain working environments, such as a coal mine, machinery have cables and hoses connected to them for supplying electricity, hydraulic fluid, coolant fluids, etc. It is desirable for these cables and hoses to be retained in an ordered fashion and also to be protected from damage by snagging or rubbing against obstacles. It is known to retain cables and hoses within cable/hose handling chains and the present invention is concerned with an improved construction of such a chain.
According to one aspect of the present invention there is provided a cable/hose handling chain comprising a plurality of hingedly connected chain links, each chain link including a transmission link assembly hingedly connected to adjacent transmission link assemblies to form said chain, each chain link including cable/hose attachment means for attaching cables/hoses thereto, the transmission link assembly for each alternate chain link comprising a pair of side by side plate members, anc for each chain link located between the alternate chain links comprising at least one plate member, the plate members for said alternate chain links being arranged so as to be spaced apart to define a gap to accommodate the plate member(s) of the chain links located between said alternate chain links.
According to another aspect of the invention there is provided a cable/hose handling chain comprising a plurality of hingedly connected chain links, each chain link including a transmission link assembly hingedly connected to adjacent transmission link assemblies to form said chain, each cnain link including a pair of attachment members for attaching cables or hoses to the transmission link assembly, each attachment member comprising a body formed by a unitary plastics moulding having an upper wall portion connected to a lower wall portion by an end wall portion to define a compartment for the reception of cables or hoses.
Reference is made to the accompanying drawings in which,
Figure 1 in a schematic view of a pair of chain links according to the present invention connected to one another;
Figure 2 is a sectional view taken along line II-II in Figure 1;
Figure 3 is a sectional view taken along line Ill-Ill in Figure 1;
Figure t is a side view of a cable/hose attachment member.
Figure 5 is an end view of the attachment member of
Figure 4 as viewed along arrow A in Figure 4;
Figure 6 is a sectional view of the attachment menDer taken along line VI-VI in Figure 5;
Figure 7 is a side view of a metal strip from which component parts of the transmission link assembly are formed.
A chain link 10 as shown in the drawings comprises a transmission link assembly 12 to which a pair of cable/hose attachment members 14 are secured. In the illustrated embodiment each attachment member 14 is indentical and comprises a body formed by a unitary plastics moulding which includes an upper wall portion 16 connected to a lower wall portion 18 by an end wall portion 19. Accordingly, as seen in Figures 3 and 4 each attachment member 14 is generaily U-shaped and thereby defines a cavity 20 for the reception of flexible hoses or cables 22.
The outer face of the end wall portion 19 is provided with a pair of projections 25 and a pair of recesses 26. The projections 25 and recesses 26 are symmetrically arranged so that a pair of attachment members 14 may be arranged back to back as seen in Figure 3 with the projections 25 of one member 14 received in the recesses 26 of the other member.
In this way a pair of back to back attachment members are positively located and accurately positioned relative to one another such that their respective upper wall portions 36 and lower wall portions 18 are contiguous. A pair of through bores 30 are provided through which bolts 31 pass for fixedly securing the members 14 together.
The outer face of the end wall portion 19 of the body is recessed to define a channel 19 for the reception of the associated transmission link assembly 12 to which the members 14 are attached. The transmission link assembly 12 for eac link 10 includes a pair of link plate members 40 which are located side by size. As seen in Figure 7, the link plate members 40 are preferably stamped from a metal strip and include apertures 42, 43 through which the projections 25 and bolts 31 respectively pass. The apertures 42 are preferably a close tolerance fit with the projections 25 so as to accurately position the link assembly and members 14 relatIve to one another during assembly. The assembly is then fixedly secured together by means of bolts 31.
The plate members 40 project laterally beyond each member 14 to define connection portions 48 for hinge connection to adjacent links 10. The connection portions 48 of adjacent links 10 are hingedly connected by means of a stub bolt 44 which passes through aligned apertures 46 formed in the connection portions 48.
Each member 10 has a main body portion 40a having a width W from which the connection portions 48 project.
As seen in Figure 7 the width of the body portion 40a is the same as the width of the metal strip. The portion of the metal strip between the connection portions and the side edge of the strip defines the shape of the spacing members 50. Thus during the stamping procedure the plate members and spacing members are simultaneously produced.
Accordingly, in the assembled chain tensile forces applied to the chain, for instance by pulling of the chain, are transmitted through the connected transmission link assemblies and in addition the attachment bodies are isolated from such force.
As indicated in Figure 2, the plate members 40 of one link 10 are arranged to be spaced apart to define a gap 47 for the reception of the plate members 40 of the adjacent link which are arranged in face to face contact.
Spacing of plate members 40 to define a gap 7 is achieved using spacing members 50 which are conveniently formed from the same metal strip as the plate members d0 as illustrated in Figure 7. A pair of spacing members 50 are provided for each plate member 40 and these are positIoned as illustrated in Figures 1 to 3.
Accordingly, for one link 10 the spacing members 50 are located between the plate members 40 to thereby space them apart. For the adjacent link the plate members 40 are arranged in face to face contact with the spacing members located on the outside of the plate members. In this way each transmission link assembly for each link 10 is of the same overall width since it includes the same component parts. Accordingly it is possible with the use of three basic components viz. member ld, plate 40 and spacing member 50 to construct each link 10.
In order to form gap 47 so as to be laxer than the combined thickness of the plate members d0 which are in face to face contact the spacing members 50 are provided with a series of projections 50a.
The projections 50a are conveniently formed during the stamping process. By varying the height of projections 50a it is possible to vary the amount of clearance between the plate members 40 in face to face contact and the spaced apart plate members 40 defining the gap. It will be appreciated that projections similar to projections 50a may be formed on one side of each plate member in addition to or instead of projections 50a for achieving the same effect.
It will be appreciated however that the transmission link assemblies for neighbouring links may comprise a different number of components. For instance alternate links require at least 2 plate members spaced apart to define the gap 47 to receive the plate members of the links located between those adjacent links. However one or more plate members may be provided for each of the links located between said adjacent links.
The outer face of the end wall portion 19 is preferably also provided with a groove 60 such that in the assembled link 10 a bore 61 is define. This enables selected spacing members 50 to be provided with a suspension formatIon (such as a hook member) which passes through the bore 61 to be received on to a support such as an overhead rail (not shown). In this way the chain composed of links 10 may be easily modified to be supported from an overhead rail
Cables and/or hoses are preferably retained within each member 14 by means of removable U-shaped resilient clips 70. Each clip 70 is provided with terminal hook formations 71 for engagement in opposed pairs of pockets 73 formed in the upper and lower wall portions 16 and 18 respectively.
As seen in Figure 5, each member 14 is provided with two pairs of pockets 73 to enable two clips 70 to be used per member 14. It will be appreciated that each member 14 may be provided with a desired number of pairs of pockets 73 so as to be capable of accommodating one or more clips 70. The number of pairs of pockets 73 provided largely depends upon the size of the member 14 and the number and size of the cables/hoses which are to be received within the body.
Claims (3)
1. A cable/hose handling chain comprising:
a plurality of hingedly connected chain links;
each chain link including a transmission link assembly hingedly connected to adjacent transmission link assemblies to form said chain;
each chain link including a pair of separate attachment members for attaching cables or hoses to the transmission link assembly;
each attachment member of each pair comprising a body formed by a unitary plastic moulding having an upper wall portion connected to a lower wall portion by an end wall portion to define a compartment for the reception of cables or hoses; and
the attachment members of each pair being positioned with their respective upper wall portions and lower wall portions contiguous with one another, and with their respective end wall portions side by side with the transmission link located therebetweeen, the end wall portion of one body being provided with location means for co-operation with location means on the end wall portion of the adjacent body;
the location means comprising laterally extending projections and recesses for accommodating the projections of the adjacent body;
and fixing means passing through the side by side -end wall portions for fixing the attachment members to one another.
2. A chain according to Claim 1 wherein each attachment member is provided with a pair of laterally extending projections and a pair of recesses.
3. A chain according to Claim 1 or 2 wherein the fixing means comprise one or more bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9101732A GB2238594B (en) | 1987-07-01 | 1991-01-26 | Cable handling chain |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8715478A GB2208129B (en) | 1987-07-01 | 1987-07-01 | Cable handling chain |
| GB9101732A GB2238594B (en) | 1987-07-01 | 1991-01-26 | Cable handling chain |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9101732D0 GB9101732D0 (en) | 1991-03-13 |
| GB2238594A true GB2238594A (en) | 1991-06-05 |
| GB2238594B GB2238594B (en) | 1991-08-21 |
Family
ID=26292428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9101732A Expired - Lifetime GB2238594B (en) | 1987-07-01 | 1991-01-26 | Cable handling chain |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2238594B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2257492A (en) * | 1991-07-11 | 1993-01-13 | Mansign Eng | Cable/hose handling chain |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1441362A (en) * | 1974-01-22 | 1976-06-30 | Coal Industry Patents Ltd | Protecitng ghe supply cables of mining machinery |
| GB2076107A (en) * | 1980-05-20 | 1981-11-25 | Mansign Eng | Chain for carrying cables |
| GB2200716A (en) * | 1987-01-07 | 1988-08-10 | James Smith | Link chain for carrying cables and hose |
-
1991
- 1991-01-26 GB GB9101732A patent/GB2238594B/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1441362A (en) * | 1974-01-22 | 1976-06-30 | Coal Industry Patents Ltd | Protecitng ghe supply cables of mining machinery |
| GB2076107A (en) * | 1980-05-20 | 1981-11-25 | Mansign Eng | Chain for carrying cables |
| GB2200716A (en) * | 1987-01-07 | 1988-08-10 | James Smith | Link chain for carrying cables and hose |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2257492A (en) * | 1991-07-11 | 1993-01-13 | Mansign Eng | Cable/hose handling chain |
| GB2257492B (en) * | 1991-07-11 | 1995-04-26 | Mansign Eng | Cable hose handling chain |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2238594B (en) | 1991-08-21 |
| GB9101732D0 (en) | 1991-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20060701 |