MXPA98010701A

MXPA98010701A - Suspens team

Info

Publication number: MXPA98010701A
Application number: MXPA/A/1998/010701A
Authority: MX
Inventors: David Facey Hugh; Edward Shawcross Brian
Original assignee: * Gripple Limited
Priority date: 1997-12-23
Filing date: 1998-12-15
Publication date: 2000-06-05

Abstract

The present invention relates to a method for suspending equipment from a raised structural member, comprising: providing a first eye on the raised member, providing a metallic suspension cord with a loop at one end, passing the other free end of the cord suspension metal through the eye and through the loop, passing the free end of the suspension metal cord through a perforation of a holding device, of the type having twin perforations, at least one of which is associated with a wedging means that prevents removal in the direction opposite to the insertion, provide a second eye on the equipment to be suspended, pass the free end of the suspension metal cord through the eye in the equipment, and pass the end Free metallic cord suspension through the other piercing device previously cited

Description

"SUSPENSION EQUIPMENT" This invention relates to a method of suspension equipment (such as lighting, heating, channeling or ventilation units) from a raised structural member (such as a roof, ceiling, spar, beam or joist). In accordance with one aspect of the present invention, a method of the suspension equipment from a raised structural member comprises providing a first eye on the raised member, providing a suspension cord with a loop at one end, passing the other free end of the member. suspension cord through the eye and through the loop, passing the free end of the suspension cord through a perforation of a fastening device of the type having twin perforations, at least one of which is associated with the medium of wedging preventing the removal in the direction opposite to the insertion, providing a second eye on the equipment to be suspended, passing the first end of the suspension cord through the eye in the equipment and passing the free end of the cord suspension through the other perforation of the aforementioned device. The first eye can be part of an accessory screwed in or bolted or welded into the raised structural member, or formed by a hole that exists or that is purposely drilled, through a beam, beam or joist. Also, the second eye can be part of an accessory screwed in or bolted or welded to the equipment to be suspended, unless the second eye can be formed by a hole, existing or purposely drilled, with a part of the lining of the team. According to another aspect of the invention, a method of the suspension equipment from a raised structural member comprises providing a suspension cord with a loop at one end, passing the other free end of the suspension cord around the raised member and through the loop, passing the free end of the suspension cord through a perforation of a fastening device of the type having twin perforations, at least one of which is associated by the wedging means preventing the withdrawal in the opposite direction to the insert, passing the free end of the suspension cord around the equipment to be suspended, and passing the free end of the suspension cord through the other perforation of the aforementioned device. In accordance with a further aspect of the invention, a method of suspension equipment from a raised structural member comprises providing an eye on the raised member, providing a suspension cord with a loop at one end, passing the other free end of the cord of suspension through the eye and through the loop, passing the free end of the suspension cord through a perforation of a fastening device, of the time having twin perforations, at least one of which is associated with the medium of wedging preventing the withdrawal in the direction opposite to the insertion, passing the free end of the suspension cord around the equipment to be suspended, and passing the free end of the suspension cord through the other perforation of the aforementioned device . On the contrary, in accordance with still another aspect of the invention, a method of the suspension equipment from a raised structural member comprises providing a suspension cord with a loop at one end, passing the other free end of the suspension cord around the member raised and through the loop, passing the free end of the suspension cord through a perforation of a fastening device, and the type having twin perforations, at least one of which is associated with the wedging means preventing the withdrawal in the direction opposite to the insertion, provide an eye on the team that is going to be suspended, passing the free end of the suspension cord through the eye in the equipment, and passing the free end of the suspension cord through the other perforation of the aforementioned device. The suspension cord may be a section of wire or cord of wire or other material, and the loop may be formed by folding back an end section and securing it by a flanged splint. After passing the free end of the suspension cord through the first perforation of the fastening device, a plastic sleeve can slide over the free end to the top or reduce the transmission of vibration from the equipment, especially the duct , towards the suspension cord. The suspension device of the type having twin perforations may be of the type described in GB-A-2210517, wherein both perforations are associated with the wedging means preventing withdrawal in opposite directions. Alternatively, the aforementioned device can be of the type described in Patent Numbers WO 95/30844 or WO 97/36123 which are provided by means whereby any wedging means can be released or removed positively, to allow adjustment of the section of the suspension system and in this way the adjustment of the - - height position of suspended equipment. The adjustment can be made simply by moving the clamping device upwards. Alternatively, a tension tool, e.g. as described in Patent Number WO 91/04137, or a blind riveting tool, it can be used on the free end of the suspension cord to effect a fine adjustment, especially under load. According to still a further aspect of the invention, an equipment suspension case comprises at least one suspension cord with a loop at one end, and a fastening device of the type having twin perforations, at least one of the which is associated with the wedging means preventing the cord from being withdrawn in the direction posed to the insertion. However, the case may also include an eye to be secured in a raised structure and / or an eye to be fixed to the equipment to be suspended. If the clamping device is of the type described in Patent Numbers WO 95/30844 or WO 97/36123, the case is preferably provided with a tool for releasing or removing either the wedging means, for adjusting the length of the system. of suspension. A plastic sleeve may be provided in the case to slide over the part (s) of the suspension cord. Although a tensioning tool and / or can be provided as previously mentioned and sold with a case as mentioned above, it may be economically feasible to provide a free-tension tool with an appreciable order for cases. It will be apparent that items of equipment that are to be suspended large and / or heavy, may require two or more suspensions in accordance with the present invention, in which case each suspension advantageously includes a fastening device as mentioned above, including means with which means of wedging can be released or removed positively, to allow the suspended equipment to be leveled, so as to adjust for height. The embodiments of the invention will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a side elevation of a suspension cord forming an article of a basic case in accordance with the invention; Figure 2 is a side elevation of a clamping device that forms the other article of the basic case; Figures 3 to 7 show diagrammatically a method according to the invention of the suspension equipment from a raised structural er; Figure 8 is a longitudinal section through the fastening device shown in Figure 2 and Figures 4 to 7; Figure 9 is a side elevation of a tool for use with the fastening device of Figure 8, to effect the adjustment of the length of the suspension system; Figures 10 to 13 are fragmentary views of the pieces of the elevated structural ers showing the different ways to provide an eye on them or on them; Figure 14 illustrates a way to provide an item of equipment with a suspension eye; Figure 15 is a side elevation of the operating end of the tension tool used to effect fine adjustment of the length of the suspension system; and Figure 16 is a diagrammatic view showing an alternative method of suspension equipment from a raised structural er, duplicated due to the size of the equipment. The suspension cord 20 shown in Figure 1 and Figures 3 to 7 is preferably a length of wire rope and a loop 21 is formed by bending back an end portion and securing it by a flanged ferrule 22. The fastening device 23 shown in Figure 2 and Figures 4 to 7 has twin perforations 24A, 24B. As will be seen in Figure 8, wedges 25A, 25B are slidable along channels 26A26B in the body 27 of the clamping device 23, each channel converging at an acute angle and in communication with a respective one of the twin holes 24A, 24B (which are separated by a thin wall 28) towards an end 29A, 29B of entrance of that respective perforation, the wedges 25A, 25B being provided with transverse ribs 30 on one side for fastening engagement with the cord 20 under the thrust of the compression springs 31A, 31B between the wedges and the rebated stops 32A, 32B inside of the body 27 of the holding device 23, adjacent to the adjacent exit ends 33A, 33B of the respective perforations 24A, 24B. The openings 34A, 34B in the body 27 of the holding device 23 each have an inner end that opens into the respective channel 26A or 26B, adjacent to the inlet end 29A or 29B of the respective bore 24A or 24B, and is available as a guide for a separate tool (Figure 9) pushed towards the channel through the opening, in order to move the wedge against the thrust of its spring to allow the cord 20 to be released from the wedge holder and the respective drilling for adjustment in the opposite direction to the insert. For further details see Patent Number WO 95/30844. A method of the suspension equipment from a raised structural member using the suspension cord 20 and the securing device 23, comprises providing a first eye 36 (Figure 3) on the raised structural member 37, passing the free end 38 of the cord of the suspension. suspension through the eye and through the loop 21 of the cord (as shown in Figure 4), passing the free end of the cord through the perforation 24A of the fastening device (see Figure 5) from its end 29A of entrance, provide a second eye 39 (Figure 6) in the equipment 40, to pass the free end of the cord through the eye 39, to pass the free end of the cord through the other perforation 24B of the fastening device (see Figure 7) from its end 29B entry. The first eye 36 can be part of an attachment 41 (Figure 10) having a wooden screw 42 screwed into a wooden beam 37, or part of an eye bolt 43 (Figure 11) having a rod 44 which passes to through hole 45 in a beam 37 and which is provided with a nut 46 and a washer 47. Again, the first eye 36 may be welded to a beam 37, as shown in Figure 12, or be simply formed by a hole which exists or is purposely drilled through a beam 37 (or other raised structural member) as shown by Figure 13. The second eye 39 may also be part of a fitting screwed into or bolted into the equipment 40 which is to be suspended, or welded into the equipment, as shown in Figures 6 and 7, unless the second eye can be formed by a hole, which exists or which is purposely drilled in the part 48 of the liner 49. of the equipment, as shown by Figure 14. The voltage tool shown in the Figure has a pair of levers 50, 51 connected by a first pivot 52 between a handle portion 53 and a stop portion 54 on the lever 50, the other lever 51 having a handle portion 55, a fixed attachment member 56, and a movable clamping member 57 on a pivot 58, the movable attachment member having an eccentric toothed bead coupling face 59, and being urged by a spring 60 to close that face to the cord engaging face 61, in the member 56 of fixed fixing and the arrangement being such that the opening of the levers 50, 51 causes one face of the stop portion 54 to open the fastening members 56, 57 for the insertion of the free end 38 and the cord 20 wire between them, while the subsequent closure of the levers 50, 51 causes the fastening members 56, 57 to retain the free wire of the cord and pull it with respect to the retaining device 23. gone in a recess 63 in the stop portion 54. For further details see Patent Number WO 91/04137. In Figure 16, a larger article of equipment 40 has been provided with two suspension systems each using a suspension cord 20 which is provided with a loop 21 at one end together with a fastening device 23 as in Figures 1 and 2, but each system is provided by passing the free end 38 of the cord around the raised member 37 and through the loop before passing the free end through the first piercing 24A of the holding device, then passing the free end of the cord. cord around the equipment and finally passing the free end of the cord through the other piercing 24B of the fastening device. A plastic sleeve 64 is shown in each suspension system in Figure 16, slid over the free end of the cord before it is passed around the equipment to stop or reduce the transmission of vibration from the equipment, especially the ducts. , towards the suspension cord 20. It will be readily appreciated that in the alternative suspension systems can be formed by combining the upper part of Figure 7 with the lower part of one of the suspension systems of Figure 16, or vice versa, depending on the nature of the raised structural member and / or the equipment that is going to be suspended. Also, an equipment suspension case, which basically comprises the attached cord 20 of the fastening device 23, may also include an eye 36 for securing to an elevated structure and / or an eye 39 to be attached to the equipment to be suspended and / or to the plastic sleeve 64.

Claims

R E I V I N D I C A C I O N E S:

1. A method of suspending equipment from a raised structural member comprising providing a first member in the elevated eye, providing a suspension cord with a loop at one end, passing the other free end of the suspension cord through the eye and through of the loop, passing the free end of the suspension cord through a perforation of a fastening device of the type having twin perforations, at least one of which is associated with the wedging means preventing the withdrawal in the opposite direction Upon insertion, provide a second eye in the equipment to be suspended, pass the free end of the suspension cord through the eye in the equipment, and pass the free end of the suspension cord through the other piercing of the cord. above mentioned device.

A method according to claim 1, wherein the first eye is part of a fitting screwed into or bolted or welded with a raised structural member.

3. A method according to claim 1, wherein the first eye is formed by a hole through a beam, a beam or a beam.

4. A method according to any of claims 1 to 3, wherein the second eye is part of an accessory screwed in or bolted or welded to the equipment to be suspended.

5. A method according to any of claims 1 to 3, wherein the second eye is formed by a hole in part of the equipment liner.

6. A method of suspension equipment of a raised structural member comprising providing a suspension cord with a loop at one end, passing the other free end of the suspension cord around the raised member and through the loop, passing the end free of the suspension cord through a perforation and a fastening device, of the type having twin perforations, at least one of which is associated with the wedging member including withdrawal in the opposite direction to the insertion, passing through the free end of the suspension cord around the equipment to be suspended and passing the free end of the suspension cord through the other perforation of the aforementioned device.

7. A method of suspension equipment from a raised structural member comprising providing an eye on the raised member, providing a suspension cord with a loop at one end, passing the other free end of the suspension cord through the eye and through the loop, passing the free end of the suspension cord through a perforation of a fastening device, of the type having twin perforations, at least one of which is associated with the accumulation member preventing the removal in the direction opposite the insertion, passing the free end of the suspension cord around the equipment to be suspended, or passing the free end of the suspension cord through the other perforation of the aforementioned device.

8. A method of suspension equipment from a raised structural member comprising providing a suspension cord with a loop at one end, passing the other free end of the suspension cord around the raised member and through the loop, passing the end free of the suspension cord through a perforation of a fastening device of the type having twin perforations, at least one of which is associated with the wedging member preventing the withdrawal in the direction opposite to the insertion, provides an eye in the equipment to be suspended, passing the free end of the suspension cord through the eye in the equipment, and passing the free end of the suspension cord through the other perforation of the aforementioned device.

9. A method according to any of claims 1 to 8, wherein the suspension cord is a section of wire or a wire rope and the loop is formed by folding back a section of the end and securing it by means of a flanged splint.

A method according to any one of claims 1 to 9, wherein after passing the free end of the suspension cord through the first piercing of the holding device, a plastic sleeve is slid over that one. free end to stop or reduce the transmission of vibration from the equipment, to the suspension cord.

11. A method according to any of claims 1 to 10, wherein the clamping device is of the type wherein both perforations are associated with a wedging means preventing withdrawal in opposite directions.

12. A method according to claim 11, wherein the clamping device is provided with a means by which any of the wedging means can be released or removed positively, to allow adjustment of the suspension system section and of this way to adjust the height position of the suspended equipment.

13. A method according to any of claims 1 to 12, wherein the adjustment is effected by moving the clamping device upwards.

A method according to any of claims 1 to 12, wherein a tension tool is used at the free end of the suspension cord to effect a fine adjustment.

15. A method according to claim 14, wherein the tension tool is a blind rivet tool.

16. An equipment suspension kit comprising at least one suspension cord with a loop at one end, and a fastening device of the type having twin perforations, at least one of which is associated with the wedging means preventing the withdrawal of the cord in the direction opposite to the insertion.

17. A kit according to claim 16, which includes an eye to be secured in a raised structure.

18. A kit according to claim 16 or claim 17, which includes an eye to be attached to the equipment to be suspended.

19. A case according to any of claims 16 to 18, including a plastic sleeve for sliding over part of the suspension cord.

20. An equipment suspension case essentially as described above with reference to Figures 1 to 2, of the accompanying drawings.

21. A method of suspending equipment of a raised structural member essentially as described above with reference to Figures 1 to 7 of the accompanying drawings.

22. A method of suspending equipment from a raised structural member in accordance with claim 21, as modified by any of Figures 10 to 14 of the accompanying drawings.

23. A method of suspending equipment from a raised structural member essentially as described above with reference to Figures 1 and 2, and Figure 16 of the accompanying drawings. SUMMARY OF THE INVENTION A method of a suspension equipment (40) from a raised structural member (37) comprising providing a first eye (36) in the raised member (37), providing a suspension cord (20) with a bow (21) in one end, passing the other free end (38) of the cord (20) through the eye (36) and through the loop (21), passing the free end (38) of the cord (20) through a perforation (24A) of a clamping device (23), of the type having twin perforations, at least one of which is associated with a wedging means that prevents withdrawal in the direction opposite to the insertion, providing a second eye (39) in the equipment (40) which is to be suspended, passing the free end (38) of the cord (20) through the eye (39) in the equipment (40), and passing the free end (38) of the cord (20) through the another perforation (24B) of the aforementioned device (23). Variations include passing the free end (38) of the cord (20) around the raised member (37), through the loop (21) and through the first piercing (24A) of the holding device 23, and / or from the holding device (23) passing the free end (38) of the cord (20) around the equipment and through the other perforation (24B) of the fastening device (23).