NL2002609C2

NL2002609C2 - QUICK FASTENING DEVICE FOR MESH TRAYS.

Info

Publication number: NL2002609C2
Application number: NL2002609A
Authority: NL
Inventors: Ernesto Chenoll Mora
Original assignee: Schneider Electric Espa A
Priority date: 2008-04-07
Filing date: 2009-03-10
Publication date: 2014-04-22
Also published as: NL2002609A1; GB2459007B; FR2929770A1; ES2307447A1; GB0902362D0; ES2307447B2; GB2459007A

Abstract

Quick fastening device for mesh cable trays(4, Fig 5) having a U-shaped body 1 whose lateral branches 5 comprise fastening means configured to actuate on lower longitudinal rods (2, Fig 5) situated on sides of the tray. The fastening means having folds 9 which emerge from the sides of an upper span of the body 1, constituting support areas 10 above the longitudinal rods 2, where the lateral branches 5 comprise flaps 11 corresponding to the folds 9 at an upper level open towards the support areas 10 which permits one to secure the longitudinal rods which are housed between said support areas 10 and flaps 11. The flaps and folds may extend towards the exterior of the body. The body may comprise a lower base with wings emerging from the base inclined outwards and having smaller dimensions than the lateral branches so as to retain the quick fastening device in a profile. The wings may have a fitting which coincide with a joint with internal walls on a profile. The quick fastening device may have a through hole at the base of the body to house a support rod.

Description

QUICK FASTENING DEVICE FOR MESH TRAYS DESCRIPTION

5 OBJECT OF THE INVENTION

The invention, as stated in the present specification, relates to a quick fastening device for mesh trays.

10 More specifically, the object of the invention consists of a device whose aim is founded on constituting a quick fastening element for cable trays, of the so-called mesh trays which, specifically, require the fastening thereof to a structural support element, such as any facing, floor, walls, ceiling, profile or support rod, said trays being of those constituted by so- 15 called chain wires or rods, disposed longitudinally, and so-called weft wires or rods, U-shaped and disposed transversally, so that they form a channel for the reception and support of the cables of an electrical system.

FIELD OF APPLICATION

20

The field of application of the present invention is within the industry sector dedicated to the manufacture of elements and accessories applicable in electrical systems and such like.

25 BACKGROUND OF THE INVENTION

Currently there are different devices known intended for the aim of this invention, amongst which should be mentioned document ES1031348, relating to a spacer support for trays laying on the ground, based on a hollow 30 piece whose upper part has at least one pair of upwards projections, which define a tightened mouth hollow, suitable for receiving by snap-fitting and holding a rod, its configuration and characteristics being noticeably different from those of the present invention.

35 As a consequence, it can be stated that the existence of any other quick fastening device for mesh trays that features technical characteristics 2 or characteristics relative to its structural configuration that are similar to those presented herein and which permit its fastening to support elements of various nature is unknown.

5 DESCRIPTION OF THE INVENTION

Specifically, the device proposed by the invention, as has been mentioned, is particularly applicable to fasten grid cable trays to a structural support element, such as any facing, profile or even support rod, as 10 explained below.

The device of the invention features the special feature of being adaptable to different structural support elements, i.e. directly to any facing such as floor, walls or ceiling, with the collaboration of a support or profile 15 fixed to the facing or even in absence of the profile, by means of a support rod fixed to the facing, which is materialized in a quick fastening, preferably of flexible nature, constituted by a body of general U-shaped configuration, which actuates on the lower longitudinal rods of the sides of the tray to be fastened and on the open face of the support element which constitutes the 20 profile, when this is present.

It should be pointed out that, is assembly arrangement and for the cases wherein the profile is incorporated, the retaining means below the body of the device are completely or partially concealed in the interior 25 thereof, without there being external areas or parts which could interfere, damage or cut the cables present in the interior of the trays, and in the event that the profile is not incorporated, even if these means of the body are not concealed, thanks to their studied structural design and arrangement in the coupling, they cannot damage said cabling either.

30

The aforementioned body of the fastening device, as has been said, features a general U-shaped configuration, whose lateral branches are notably pronounced and have, emerging from its lower part or base with wings inclined outwards, which feature notably reduced dimensions 35 compared to the abovementioned lateral branches.

3

Focusing the explanation of the invention when the tray is fastened to a structural support element constituted by a profile, these wings include on their final span, and on their external wall, a fitting, which protrudes externally coinciding, in assembly position, with the joint of the internal walls 5 of the profile, carrying out the retention thereof.

For its part, the outward inclination of the aforementioned wings advantageously permit their coupling both in profiles wherein their internal walls are straight as well as those wherein said internal walls are inclined.

10 Furthermore, said inclination permits the insertion of a tool and levering in order to unclip the joint fittings so that they leave the wall of the profile and permit the removal of the device.

For their part, the lateral branches of the U-shaped body forming the 15 device, in their upper span, each feature lateral folds which emerge from said body, which form above, respective support areas for the longitudinal rods featured on the sides of the tray. The lateral branches of the U-shaped body provide solidity and robustness to the support in said area.

20 In parallel, corresponding to the aforementioned lateral folds of the branches of the U-shaped body, and on an upper level, are arranged open flaps, intended to secure the longitudinal rods which rest on the abovementioned support areas provided on the upper part of the folds are housed between these and the flaps.

25

The possibility is provided for that said emerging lateral folds are arranged perpendicularly towards the exterior of the body and that each open flap is also disposed towards the exterior of said body.

30 In order to disassemble the device disposed on the profile, it is sufficient to insert a tool and lever the emerging wings of the base of the U-shaped body, unclipping the joint fittings of the interior walls of the profile.

For its part, in order to disassemble the device with respect to the 35 tray, it is sufficient to press the upper span of the lateral branches, so that the flaps tilt with respect to their initial position, facilitating the removal of the 4 longitudinal rods with respect to their support area.

For the case in which the grid tray must be fastened by means of the collaboration of a structural support element constituted by a support rod, 5 the base of the U-shaped body forming the device is provided with an additional through hole, wherethrough can be introduced the aforementioned support rod, using for the fastening thereof at least one nut disposed corresponding to at least one of the walls of the base of the body. For the case in which the structural support element is constituted by the facing 10 itself, that same hole permits the adaptation between both elements, device and facing, with the collaboration of the corresponding fastening means.

Logically, for the cases in which the structural support element is not constituted by the profile, i.e., either directly to the facing or the support rod, 15 the wings which emerge from the base of the U-shaped body and the fitting which they feature do not intervene in the support of the device.

The quick fastening device for mesh trays disclosed therefore represents an innovative structure of unknown structural and constitutive 20 characteristics to date for such a purpose, reasons which, together with its practical utility, provide it with sufficient foundation to obtain the privilege of exclusivity it seeks.

DESCRIPTION OF THE DRAWINGS

25

In order to complement the description being carried out and with the aim of helping towards a better understanding of the characteristics of the invention, the present specification is accompanied by a set of plans, as an integral part thereof, wherein the following has been represented in an 30 illustrative and non-limitative character: figs 1,2 and 3 respectively show a front elevational view, a side elevational view and a plan view of the quick fastening device for mesh trays object of the invention, observing the 35 parts which constitute it; fig. 4 shows an upper perspective view of the 5 device; figs. 5, 6 and 7 show several perspective views of the device coupled to the tray and a profile of internal inclined walls; figs. 8, 9 and 10 show three more perspective views of the device coupled 5 to the tray and a profile with straight internal walls; fig. 11 shows a perspective view of the device fastened to a support rod; fig. 12 shows the device anchored to a tray, fastened to facing without rod and without profile.

10

PREFERRED EMBODIMENT OF THE INVENTION

In view of the abovementioned figures, and in accordance with the adopted numeration, an example of preferred embodiment of the invention can 15 be observed therein, which comprises the parts and elements which are indicated and described in detail below.

Thus, as can be observed in said figures, the device in question is materialized in a quick fastening of flexible nature, constituted by body (1) of 20 general U-shaped configuration, which actuates on the lower longitudinal rods (2) featured on the sides of a grid tray (4) and particularly applicable for the fastening thereof to a structural support element of various nature, the latter featuring the possibility of materializing in a profile (3) and more specifically adaptable on its open face, as has been represented in the examples shown in 25 figures 5 through 10, in a support rod (13) which fastens it to the facing without having the aforementioned profile (3), as shown by figure 11, or even directly to the facing (16) such as walls or other surfaces, as has been represented in figure 12.

30 In assembly arrangement, for the cases in which the profile (3) is incorporated as structural support element, the retaining means below the body (1) of the device remain advantageously concealed in the interior thereof, without there being external areas or parts which could interfere, damage or cut the cables present inside the trays (4), while in the case that it does not 35 incorporate the profile (3), even if said retaining means below the body (1) are not concealed, thanks to its studied structural design and arrangement in the 6 coupling, said cabling cannot be damaged either.

Looking at figures 1 through 5, it can be clearly observed that the aforementioned body (1), as has been said, features a general U-shaped 5 configuration, whose lateral branches (5) are notably pronounced and emerging from its lower part or base (6) wings (7) inclined outwards, which feature reduced dimensions compared to said lateral branches (5).

These wings (7) include, on their external wall, a fitting (8) on its end 10 span, which protrudes externally coinciding, in assembly position, with the joint (3a) of the internal walls (3b) of the profile (3) when this is present, carrying out the retention thereof.

It must be noted that the outward inclination of the wings (7) 15 advantageously allows its coupling on profiles (3) wherein its internal walls (3b) are both straight and inclined, as observed in figures 8, 9 and 10, for the case of straight internal walls (3b), and in figures 5 through 7, for the case of inclined internal walls (3b). Furthermore, said inclination permits the insertion of a tool and levering on the wings (7) emerging from the base (6) of the body (1), 20 unclipping the fittings (8) of the aforementioned joint (3a) leaving the wall of the profile (3) and removing the device.

For its part, the lateral branches (5), in their upper span, each feature folds (9) which emerge from their sides, preferably perpendicular towards the 25 exterior of the body (1), folds (9) which each form, above, support areas (10) for the longitudinal rods (2) featured on the sides of the tray (4). The branches (5) provide solidity and robustness to the support in said area.

In parallel, corresponding to the aforementioned folds (9) and at an 30 upper level, the lateral branches (5) of the U-shaped body (1) each dispose of open flaps (11), preferably towards the exterior, in order to secure the longitudinal rods (2) which rest on the said support areas (10) are housed between these and said flaps (11).

35 In order to disassemble the device with respect to the tray (4), it is sufficient to press the upper span of the lateral branches (5), so that the flaps 7 (11) come out of their position, facilitating the removal of the longitudinal rods (2) with respect to their support area (10).

For the case in which the tray (4) must be fastened with the body (1) 5 to a structural bearing element constituting a support rod (13), the base (6) of the body (1) is provided with an additional through hole (12), wherethrough can be introduced said support rod (13), using for the fastening thereof a nut (14) which corresponds to at least one of the walls of the base (6) of the body (1).

10

For the case in which the structural support element is constituted by the facing (16) itself, that same hole (12) permits the adaptation between both elements, body (1) of the device and facing (16), with the collaboration of the corresponding fastening means (15).

15

Logically, for the case in which the incorporation of the profile (3) is not required, the wings (7) and the fitting (8) which these feature do not intervene in the support of the device.

Claims

A fastening means for grating troughs, adapted to fasten cable trays (4) formed by longitudinal (2) and transverse bars which require their arrangement on at least one structural support element selected from a profile (3), a support rod (13) and immediately a lining (16), characterized in that it is formed from a body (1), having a generally U-shaped shape, whose lateral arms (5) are remarkably pronounced and comprise fastening means adapted to operate on the lower longitudinal bars (2) situated on the side of the gutter (4), said fixing means consisting of folds (9) rising from the sides of an upper width of the body (1), each surface supporting surfaces (10) forms above said longitudinal bars (2), where said lateral arms, corresponding to the folds (9) and at an upper level, comprise valves (11) which are open to the support surfaces (10), which are adapted to fix the longitudinal rods (2) accommodated between said support surfaces (10) and valves (11).

2. Fastening means for lattice gutters, according to claim 1, characterized in that the folds (9) rise perpendicularly from the lateral arms (5) towards the outside of the body (1) and the valves (11) are placed on an open towards the outside of said body (1).

3. Fastening means for grating troughs, according to one of the two preceding claims, characterized in that the body (1) comprises a lower part or base (6) from which rise outwardly inclined wings (7) which have a smaller dimension than the lateral arms (5), wherein said wings (7) comprise lower retention means adapted to operate on an open surface of the profile (3) for retention thereof, wherein said retention means are at least partially below the body (1) hidden in the interior of the profile (3). 10

A fastener for grate gutters, according to claim 3, characterized in that the lower retention means located on the wings (7) consists of a fitting (8) which has said wings (7) at an end width of its external wall, said fittings (8) being externally protruding being adapted to coincide with a connecting piece (3a) having internal walls (3b) of the profile (3).

5. Fastening means for lattice gutters, according to one of claims 3 and 4, characterized in that the inclination of the wings (7) is arranged to connect said wings (7) to profiles (3) that have internal walls (3b) both upright and sloping.

Fast grating connection means, according to one of claims 3 to 5, characterized in that the wings (7) are arranged for the insertion of a tool for leveraging and detaching the fittings (8) from the connection piece (8) 3a) of the inner wall of the profile (3).

7. Fast connecting means for grating, according to one of the preceding claims, characterized in that additionally the base (6) of the body (1) comprises a passage (12) which is adapted to accommodate a support rod (13).

A fast trough connection means according to one of claims 1-6, characterized in that additionally the base (6) of the body (1) comprises a passage (12) adapted to connect said body (1) ) with a lining (16) through the cooperation of fasteners (15). 15