CONNECTION DEVICE FOR CONNECTING MESH CABLE TRAYS AND MESH CABLE TRAY SECTION

Abstract

A connection device connects mesh cable trays and mesh cable tray section. The trays include longitudinal and transverse rods joined together. The connection device includes two side parts connected by a central connection section. The central connection section includes an intermediate section and two grooved sections. Each grooved section is disposed on one side of the intermediate section. The height of the central connection piece is greater than the distance between two consecutive longitudinal rods of the cable. The central connection piece has s recess for housing a longitudinal rod of the cable tray. One grooved section has an outer side surface with a wedge-shaped upper section, a central section wherefrom a connection device side part projects laterally, and a lower section below the recess housing the longitudinal rod. The other grooved section projects laterally from the other side part, connecting the side part and the other grooved section.

Claims

1. A connection device for connecting mesh cable trays having longitudinal and transverse rods joined together, including a piece comprising two side parts connected by a central connection piece, wherein the central connection piece comprises an intermediate section and two grooved sections, wherein each of the grooved sections is disposed on one side of the intermediate section, a height of the central connection piece being greater than a distance between two consecutive longitudinal rods of the cable trays whereon the connection device is to be disposed, the central connection piece at least one recess for housing a longitudinal rod of the cable tray whereon the connection device is to be disposed, wherein one of the grooved sections has an outer side surface with three sections: a wedge-shaped upper section ending in an upward bent upper point, a central section wherefrom one of the side parts of the connection device projects laterally and a lower section disposed below the recess for housing the longitudinal rod of the cable tray, in that wherein the other grooved section projects laterally from the other side part connecting the side part and the other grooved section disposed above the recess for housing the longitudinal rod of the cable tray whereon the connection device is to be disposed, and wherein one of the side parts comprises a plate having a height corresponding to the distance between two consecutive longitudinal rods of the cable tray whereon the connection device is to be disposed, plus diameters of said longitudinal rods, and the other side part comprises a plate having a height lower than the distance between two consecutive longitudinal rods of the cable trays whereon the connection device is, to be disposed, from the bottom of which an inclined extension projects, in a mounted position, on a longitudinal rod of the cable tray whereon the connection device is to be disposed.

2. A mesh cable tray section, comprising longitudinal rods and transverse rods joined together, said transverse rods being U-shaped, wherein the transverse rods form a base and two sides, with the longitudinal rods disposed on the base and sides of the tray; and at least one connection device for connecting mesh cable trays according to claim 1, wherein the side part of the connection device is fixed to two consecutive longitudinal rods, and one of the grooved sections of the central part of the connection device enfolds a corresponding end transverse rod.

3. A mesh cable tray section, according to claim 2, comprising two symmetrical connection devices for mesh cable trays, each of which coupled on a side of the mesh cable tray section.

4. A mesh cable tray section, according to claim 3, further comprising a connection device for connecting mesh cable tray sections coupled on the base of the mesh cable tray section.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] What follows is a non-limiting illustration of the object of the present invention, making reference to the accompanying drawings, wherein:

[0018] FIG. 1 shows a perspective view of an embodiment of the connection device of the invention.

[0019] FIG. 2 shows another perspective view of the embodiment of the connection device of the invention of FIG. 1.

[0020] FIG. 3 shows a front view of the embodiment of the connection device of the invention of FIG. 1.

[0021] FIG. 4 shows a side view of the embodiment of the connection device of the invention of FIG. 1.

[0022] FIG. 5 shows another side view of the embodiment of the connection device of the invention of FIG. 1.

[0023] FIG. 6 shows a plan view of the embodiment of the connection device of the invention of FIG. 1.

[0024] FIG. 7 shows a perspective view of a tray section with two connection devices of the invention.

[0025] FIG. 8 shows a detailed view of FIG. 7.

[0026] FIG. 9 shows an exterior view of a cable tray section with a connection device of the invention.

[0027] FIG. 10 shows a front view of a cable tray section with a connection device of the invention.

[0028] FIG. 11 shows a plan view of the tray section with two connection devices of the invention of FIG. 7.

[0029] FIG. 12 shows a perspective view of two connection devices of the invention coupled on two cable tray sections.

[0030] FIG. 13 shows a side view of FIG. 12.

[0031] FIG. 14 shows a plan view of FIG. 12.

DETAILED DESCRIPTION OF THE INVENTION

[0032] FIGS. 1 to 6 show several views of an embodiment of the connection device 1 of the invention, specially designed for connecting mesh cable trays by their ends, said cable trays consisting of longitudinal 16 and transverse 17 rods joined together.

[0033] In said figures it can be observed that the connection device 1 of the invention consists of a piece comprising two side parts 2, 2′ connected by means of a central connection piece 3. The central connection piece 3 comprises an intermediate section 4 and two grooved sections 5, 6, wherein each of the grooved sections 5, 6 is disposed on one side of the intermediate section 4. The height of the central connection piece 3 is greater than the distance between two consecutive longitudinal rods 16 of the cable tray whereon the connection device 1 is intended to be disposed, and also has at least one recess 7 for housing a longitudinal rod 16 of the cable tray whereon the connection device 1 is intended to be disposed. One of the grooved sections 5 of the central part 3 has an outer lateral surface with three sections: a wedge-shaped upper section 8 ending in an upper point 11 which is bent upwards, a central section 9 wherefrom one of the side parts 2 of the connection device 1 projects laterally and a lower section 10 disposed below the recess 7 for housing the longitudinal rod 16 of the cable tray. The other side part 2′ projects laterally from the other grooved section 6, being the connection between the side part 2′ and the other grooved section 6 disposed above the recess 7 for housing a longitudinal rod 16 of the cable tray whereon the connection device 1 is intended to be disposed.

[0034] FIGS. 7 to 11 show several views of a cable tray section 15 with two connection devices 1 of the invention.

[0035] In one embodiment of the invention, one of the side parts 2′ comprises a plate 14 whose height corresponds to the distance between two consecutive longitudinal rods 16 of the cable tray whereon the connection device 1 is intended to be disposed, plus the diameters of said longitudinal rods 16, and the other side part 2 comprises a plate 12 whose height is lower than the distance between two consecutive longitudinal rods 16 of the cable tray whereon the connection device 1 is intended to be disposed, from the bottom of which an inclined extension 13 projects which is intended to be disposed, in a mounted position, on a longitudinal rod 16 of the cable tray whereon the connection device 1 is intended to be disposed.

[0036] The mesh tray section 15 of FIGS. 7 to 11 can be supplied as an assembly pre-assembled in-factory having one or two symmetrical connection devices 1, 1′ on one of its ends for coupling to another mesh tray section (in the event of having two connection devices 1, 1′, each tray side would include a device, as in FIG. 7).

[0037] Furthermore, the mesh tray section 15 can also be supplied as an assembly pre-assembled in-factory having three connection devices on one of its ends for coupling to another mesh tray section, wherein a connection device is coupled to the base 18 of the mesh tray section 15.

[0038] The mesh cable tray section 15 of FIGS. 7 to 11 has a general basic configuration comprising longitudinal rods 16 and transverse rods 17 joined together, the transverse rods 17 being U-shaped such as to form a base 18 and two sides 19, with longitudinal rods 16 disposed on the base 18 and the sides 19 of the tray, whereto the connection devices 1, 1′ of the invention are incorporated.

[0039] Alternatively, the tray sections with incorporated connection devices can also be assembled on-site manually by coupling the connection device or devices to the tray on-site.

[0040] In the tray sections 15 with incorporated connection devices 1, a side part 2′ of the connection device 1 is fixed to two consecutive longitudinal rods 16 (for example, by welding) and one of the grooved sections 6 of the central part 3 of the connection device 1 enfolds the corresponding end transverse rod 17. In this manner, the intermediate section 4 and the other grooved section 5 of the central part 3 of the connection device 1 would be cantilevered, together with the other side part 2 of the connection device 1. On coupling this cable tray section 15 with connection devices 1 incorporated with another cable tray section 20 (that previously installed) on-site, the first section 15 (that incorporating connection devices 1) would be coupled to the other section 20 from above, fitting the end transverse rod 17 of the section 20 into the corresponding grooved section 5, whereupon the corresponding longitudinal rods 16 are retained by the upper point 11 of the wedge-shaped section 8 of the outer lateral surface of the corresponding grooved section 5, by the recess 7 envisaged in the connection device 1 for housing longitudinal rods 16 and by the inclined extension 13 of the side part 2, where applicable. Said arrangement is illustrated in FIGS. 12 to 14, which represent several views of two connection devices 1, 1′ of the invention coupled on two cable tray sections 15, 20.

[0041] The modifications comprised within the scope defined by the following claims can be made to the preferred embodiments of the invention described above.