GB2482607A - Coupling accessory for wire mesh cable trays - Google Patents

Coupling accessory for wire mesh cable trays Download PDF

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Publication number
GB2482607A
GB2482607A GB1113393.1A GB201113393A GB2482607A GB 2482607 A GB2482607 A GB 2482607A GB 201113393 A GB201113393 A GB 201113393A GB 2482607 A GB2482607 A GB 2482607A
Authority
GB
United Kingdom
Prior art keywords
transversal
wire mesh
lateral part
channeled
tray
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
Application number
GB1113393.1A
Other versions
GB201113393D0 (en
GB2482607B (en
Inventor
Adolfo Garcia Magallon
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.)
Pequeno Material Electrico SA PEMSA
Original Assignee
Pequeno Material Electrico SA PEMSA
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 Pequeno Material Electrico SA PEMSA filed Critical Pequeno Material Electrico SA PEMSA
Publication of GB201113393D0 publication Critical patent/GB201113393D0/en
Publication of GB2482607A publication Critical patent/GB2482607A/en
Application granted granted Critical
Publication of GB2482607B publication Critical patent/GB2482607B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0616—Joints for connecting tubing to casing
    • 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
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0608—Joints for connecting non cylindrical conduits, e.g. channels
    • 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
    • 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
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
    • 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
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/0433—Clamping or clipping connections for rods or tubes being in parallel relationship
    • 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
    • H02G3/0437—Channels
    • H02G3/0443—Channels formed by wire or analogous netting

Abstract

A coupling accessory 1 for wire mesh cable trays (10, Fig 5) consists of a body with a base in a general shape of a quadrangle with right angles, with a channeled lateral part 2 that enables the housing of a transversal wire (12, Fig 6) of the tray and that ends in two lateral edges 3. An upper perpendicular prolongation 4 extends from one lateral edge of the channeled lateral part, and a lower perpendicular prolongation 5 extends from the other lateral edge, the prolongations being separated by an intermediary hollow space 8 that allows the insertion of transversal wires of the tray. The upper and lower prolongations have a straight section 6 that ends in a semi cylindrical edge 7 which can house a transversal wire of the tray in its interior, the semi cylindrical edges being vertically aligned. One of the prolongations comprises a tab 9 folded inward and adjacent to the channeled lateral part, while the other prolongation has a tab 9' folded inward and adjacent to its corresponding semi cylindrical edge.

Description

COUPLING ACCESSORY FOR WIRE MESH CABLE TRAYS AND
PROCEDURE FOR ASSEMBLING SECTIONS OF SAID TRAY
Field of the Invention
The instant invention refers to a coupling accessory for wire mesh cable trays, especially for curved sections, and a procedure for assembling sections of wire mesh cable trays that uses said accessory.
Backciround of the Invention The wire mesh cable trays that are routinely used in electrical installations are made up of several lengthwise and transversal metal wires coupled to each other, the transversal metal wires having a U shape and, preferentially, being separated from each other by the same distance, in such a way that they form a base surface and two lateral surfaces.
There are several types of coupling devices for wire mesh trays found in the market, which can be made up of one or several pieces.
Document ES1 194825 for "Adjustable pressure platelets for strung cables comprising stranded or trellis wires, assembly of such platelets in strung cables", discloses a plate comprising some means that enable it to be adjusted by a snap fitting on strands of strung cable in two noticeably perpendicular directions. This plaque may have a noticeably rectangular shape, with two of its longitudinal edges that allow for the snap fitting of the plate on two strands that are found to be separated by a given distance, and two transversal edges that allow for the snap fitting of the plate on two strands separated by a second distance that is less than or equal to the first.
Document ES2307447 for a "Quick attaching device for wire mesh trays" discloses a device for attaching wire mesh cable trays to a structural support element that is comprised of a body configured in a general U shape, the lateral branches of which comprise attaching means configured to act on lower longitudinal wires located on the sides of the tray, said attaching means consisting in folds that protrude from the sides of an upper part of the body, creating upper support zones of said longitudinal wires. Said lateral branches comprise, in correspondence with the folds and an upper level, marked tabs openning towards the support zones, making it possible to subject the longitudinal wires that are housed between said support zones and the tabs.
Document ES2322787, for a "Coupling device for wire mesh trays and wire mesh tray sections coupled by means of said device" discloses a device that comprises a main body with a substantially square or rectangular shape, two curved wings facing each other that protrude from the main body, each one comprising a coupling kink with the main body and a free section, and elongated tabs in opposite directions, that protrude from the ends of the main body. Said tabs have a normal position, in which they prevent a transversal wire of the tray located within the section of the curved wings from disengaging from the section in a natural manner, and a forced position that allows inserting a transversal wire into the section of the curved wings. In this way in the normal position said tabs are given an inclination so that they remain in the section of the curved wings.
Although the devices of said documents consist in at least one piece that enables a relatively secure coupling of adjacent sections of wire mesh cable trays without using any tools, it is still necessary to have an easy assembly accessory available that provides additional security to prevent them from decoupling when forces or weight are placed on said cable trays.
Summary of the Invention
Thus the object of the instant invention is to provide a coupling accessory for wire mesh cable trays that makes it possible to improve the security of the coupling between sections of cable trays.
The invention disclosed is a coupling accessory for wire mesh cable trays of the type comprised by longitudinal wires and transversal wires, which consists of a body with a base in a general shape of a quadrangle with right angles, that has a channeled lateral part in the shape of a half circle that enables the housing of a transversal wire of the tray in its interior and that ends in two lateral edges in which: -from one lateral edge of said channeled lateral part an upper perpendicular prolongation extends, and from the other lateral edge of said channeled lateral part a lower perpendicular prolongation extends, said prolongations being separated by an intermediary hollow space that allows the insertion of transversal wires of the tray.
-the upper and lower prolongations have a straight section that ends in a semi cylindrical edge which enables the housing of a transversal wire of the tray in its interior, the semi cylindrical edges being vertically aligned, -one of the prolongations comprises a tab folded inward and adjacent to the channeled lateral part, while the other prolongation comprises a tab folded inward and adjacent to its corresponding semi cylindrical edge.
The invention also teaches a procedure for assembling sections of wire mesh cable trays that employ at least one coupling accessory of the invention, according to claim 6.
By means of this configuration with upper and lower prolongations, an intermediate hollow space and tabs, an accessory is obtained that enables improving the security of the coupling between the sections of cable trays, thus avoiding the accidental decoupling of the same.
Furthermore, the assembly procedure is simpler because the configuration of the piece with the intermediate hollow space enables the horizontal coupling of the accessory by inserting the vertical sections of the transversal wires of the section to be coupled in the intermediate hollow space of the accessory.
Another advantage of the invention is its versatility, given that it serves both to couple curved sections and straight sections.
Another additional advantage of the invention is that the anchoring tabs can be relatively short, so that they do not easily become deformed when applying force to the system and the accessory may be made of materials such as plastic.
Other features and advantages of the present invention will be disclosed in the following detailed description of an exemplary embodiment of the object in relation to the accompanying figures.
Brief Descrirtion of the Drawings The following is a non-exclusive example of the object of the present invention, with reference made to the accompanying figures, in which: Figure 1 shows a perspective view of the coupling accessory for cable trays of the invention.
Figure 2 shows a front view of the coupling accessory for cable trays of the invention.
Figure 3 shows a top view of the coupling accessory for cable trays of the invention.
Figure 4 shows a lateral view of the coupling accessory for cable trays of the invention.
Figure 5 shows a top view of the assembly of sections of wire mesh cable trays and an accessory of the invention prior to proceeding with its assembly, in the initial stage.
Figure 6 shows a magnified detail of Figure 5.
Figure 7 shows a bottom view of the positioning of the accessory of the invention on two sections of wire mesh cable trays after step 2 of the assembly.
Figure 8A shows the positioning of the accessory of the invention on two sections of wire mesh cable trays after step 2 of the assembly.
Figure 8B shows a detail of the coupling zone of Figure 8A.
Figure 9A shows the positioning of the accessory of the invention on two sections of wire mesh cable trays in step 3 of the assembly.
Figure 9B shows a detail of the coupling zone of Figure 9.
Figure 1 OA shows the positioning of the accessory of the invention on two sections of wire mesh cable trays after step 3 of the assembly.
Figure lOB shows a detail of the coupling zone of Figure bA.
Figure 1 1A shows the final position of the accessory of the invention on two sections of wire mesh cable trays after step 4 of the assembly.
Figure 11 B shows a detail of the coupling zone of Figure 1 1A.
Detailed Descriltion of the Invention Figures 1 to 5 show several views of coupling accessory 1 for wire mesh cable trays 10 of the invention. The wire mesh cable trays 10 (which are shown in Figures 5 to 11 B) consist of several longitudinal metal wires 11 and transversal wires 12 interlacing each other, transversal wires 11 having a U shape (with vertical sections 13) and being separated from each other, preferably in an equidistant manner, so that they form a base surface and two lateral surfaces.
As shown in Figures 1 to 5, especially the perspective view (Figure 1), said accessory 1 consists in a body with a base in a general shape of a quadrangle with right angles (in the embodiment depicted in the figures it would be a rectangular shaped base), that has a channeled lateral part 2 in the shape of a half circle that enables the housing of a transversal wire 12 of wire mesh cable tray 10 and that ends in two lateral edges 3.
From a lateral edge 3 of said channeled lateral part 2, upper perpendicular prolongation 4 extends, and from the other lateral edge 3 of said lateral part 2, lower perpendicular prolongation 5 extends, said prolongations 4, being separated by an intermediate hollow space 8 that enables the insertion of transversal wires 12 of tray 10.
Upper prolongation 4 and lower prolongation 5 show a straight section 6 that ends at a semi cylindrical edge 7, which enables the housing of a transversal wire 12 of tray 10 in its interior, semi cylindrical edges 7 being vertically aligned.
One of the prolongations comprises a tab 9 folded towards the inside and adjacent to channeled lateral part 2, while the other prolongation comprises a tab 9' folded towards the inside and adjacent to its corresponding semi cylindrical edge 7.
Preferably prolongations 4, 5 that separate lateral edges 3 of channeled lateral part 2 have a general shape of a rectangular plate interrupted by corresponding tabs 9, 9'.
Lateral edges 3 of channeled lateral part 2 can be straight and coincide with the edges from which said channeled lateral part 2 originates, as seen in Figures 1 and 2.
Likewise, as shown in the embodiment of the figures, semi cylindrical edges 7 can have the same height.
Preferably tabs 9, 9' have a length that is lesser than half the length of straight section 6 of the prolongation on which it is placed (see Fig 2, for example). In this manner they do not easily become deformed when applying force to the assembly. This also makes it possible to manufacture accessory 1 from of materials such as plastic The procedure for coupling the sections of wire mesh cable trays 10, which employs at least on coupling accessory I of the invention, comprises the following steps:.
-Step 1 (Figures 5 and 6): Placing side by side two sections of cable trays and at least one of the vertical sections 13 of its transversal wire edges, -Step 2 (Figures 7 and 8A-8B): Horizontal coupling of accessory 1 by inserting vertical sections 13 of the transversal wires of the sections to be coupled into intermediate hollow space 8 of accessory 1, -Step 3 (Figures 9A-9B and 1OA-1OB): Rotation of accessory 1 from its horizontal position in such a way that it is set in a vertical position between two longitudinal wires 11 of each tray 10 and with channeled lateral part 2 and semi cylindrical edges 7 parallel to vertical sections 13 of the transversal wires, -Step 4 (Figures 11 A and 11 B): separation of the two cable tray sections in such a way that vertical section 13 of the transversal wire of the edge of a tray 10 is inserted into the hollow interior space of channeled lateral part 2, and vertical section 13 of the transversal wire of the edge of the other tray 10 is inserted into the interior hollow spaces of semi cylindrical edges 7, leaving at the same time each tab 9, 9' in contact with vertical section 13 of the corresponding transversal wire by the opposing face with which it is in contact with channeled lateral part 2 or with semi cylindrical edges 7, respectively.
Although some embodiments of the invention have been described and depicted, it is obvious that modifications can be made to them within their scope, and that the invention should not be considered limited to said embodiments, but rather only to the content of the following claims.

Claims (8)

  1. CLAIMS1. Coupling accessory (1) for wire mesh cable trays (10) of the type comprised by longitudinal wires (11) and transversal wires (12), which consists of a body with a base in a general shape of a quadrangle with right angles, that displays a channeled lateral part (2) in the shape of a half circle which enables the housing of a transversal wire (12) of the tray (19) in its interior and that ends in two lateral edges (3), characterized by -from one lateral edge (3) of said channeled lateral part (2) an upper perpendicular prolongation (4) extends, and from the other lateral edge (3) of said channeled lateral part (2) a lower perpendicular prolongation extends (5), said prolongations (4, 5) being separated by an intermediary hollow space (8) that allows the insertion of transversal wires (12) of tray (10).-the upper (4) and lower (5) prolongations have a straight section (6) that ends in a semi cylindrical edge (7) which enables the housing a transversal wire (12) of tray (10) in its interior, the semi cylindrical edges (7) being vertically aligned, -one of the prolongations comprises a tab (9) folded inward and is adjacent to the channeled lateral part (2), while the other prolongation comprises tab (9') folded inward and is adjacent to its corresponding semi cylindrical edge (7).
  2. 2. Coupling accessory (1) for wire mesh trays (10), according to claim 1, characterized by prolongations (4, 5) that separate lateral edges (3) of channeled lateral part (2) having a general shape of a rectangular plate interrupted by corresponding tabs (9, 9').
  3. 3. Coupling accessory (1) for wire mesh trays (10), according any of the earlier claims, characterized by lateral edges (3) of channeled lateral part (2) being straight and coinciding with the edges from which said channeled lateral part (2) originates.
  4. 4. Coupling accessory (1) for wire mesh trays (10), according any of the earlier claims, characterized by semi cylindrical edges (7) having the same height.
  5. 5. Coupling accessory (1) for wire mesh trays (10), according any of the earlier claims, characterized by tabs (9, 9') having a length that is lesser than half the length of straight section (6) of the prolongation (4 5) on which it is placed.
  6. 6. A procedure for coupling the sections of wire mesh cable trays (10), which employs at least one coupling accessory (1) of the invention, characterized by comprising the following steps: -Placing together two sections of cable trays (10) and at least one of the vertical sections (13) of the transversal edge wires, -Horizontally coupling accessory (1) by inserting vertical sections (13) of the transversal wires of the sections to be coupled into intermediate hollow space (8) of accessory (1), -Rotating accessory (1) from its horizontal position in such a way that it is set in a vertical position between two longitudinal wires (11) of each tray (10) and with channeled lateral part (2) and semi cylindrical edges (7) parallel to vertical sections (13) of the transversal wires, -Separating the two cable tray sections (10) in such a way that vertical section (13) of the transversal wire of the edge of a tray (10) is inserted into the hollow interior space of channeled lateral part (2), and vertical section (13) of the transversal wire of the edge of the other tray (10) is inserted into the interior hollow spaces of semi cylindrical edges (7), leaving at the same time each tab (9, 9') in contact with vertical section (13) of the corresponding transversal wire by the opposing face with which it is in contact with channeled lateral part (2) or with semi cylindrical edges (7), respectively.
  7. 7. A coupling accessory for wire mesh trays, substantially as herebefore described with reference to and as shown in Figures 1 to 4.
  8. 8. A procedure for coupling the sections of wire mesh cable trays substantially as herebefore described with reference to Figures 5 to 11 B.
GB201113393A 2010-08-03 2011-08-03 Coupling accessory for wire mesh cable trays and procedure for assembling sections of said tray Active GB2482607B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201031208A ES2350553B1 (en) 2010-08-03 2010-08-03 JOINT ACCESSORY FOR PORTABLE GRILLE TRAYS AND ASSEMBLY PROCEDURE FOR SUCH TRAY SECTIONS.

Publications (3)

Publication Number Publication Date
GB201113393D0 GB201113393D0 (en) 2011-09-21
GB2482607A true GB2482607A (en) 2012-02-08
GB2482607B GB2482607B (en) 2015-05-20

Family

ID=43432314

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201113393A Active GB2482607B (en) 2010-08-03 2011-08-03 Coupling accessory for wire mesh cable trays and procedure for assembling sections of said tray

Country Status (4)

Country Link
ES (1) ES2350553B1 (en)
FR (1) FR2963708B1 (en)
GB (1) GB2482607B (en)
PT (1) PT105836B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3040830A1 (en) * 2015-09-08 2017-03-10 Niedax France LINK PIECE AND CONNECTING ELEMENT FOR CABLES

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4080701A1 (en) 2021-04-20 2022-10-26 Erico International Corporation Cable tray clips and methods for using the same
US11962135B2 (en) 2022-02-11 2024-04-16 Erico International Corporation Splice clip for cable trays

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010044992A1 (en) * 2000-05-26 2001-11-29 Paul Hettich Gmbh & Co. Quick fixing element
DE102004032312A1 (en) * 2004-07-03 2006-01-19 Deere & Company, Moline Handle, Hubspindelanordnung and manufacturing method for a handle
ES2322787A1 (en) * 2009-01-30 2009-06-26 Schneider Electric España, S.A. Joining device for grid trays

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010044992A1 (en) * 2000-05-26 2001-11-29 Paul Hettich Gmbh & Co. Quick fixing element
DE102004032312A1 (en) * 2004-07-03 2006-01-19 Deere & Company, Moline Handle, Hubspindelanordnung and manufacturing method for a handle
ES2322787A1 (en) * 2009-01-30 2009-06-26 Schneider Electric España, S.A. Joining device for grid trays

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3040830A1 (en) * 2015-09-08 2017-03-10 Niedax France LINK PIECE AND CONNECTING ELEMENT FOR CABLES

Also Published As

Publication number Publication date
GB201113393D0 (en) 2011-09-21
GB2482607B (en) 2015-05-20
ES2350553B1 (en) 2012-07-09
ES2350553A1 (en) 2011-01-25
PT105836B (en) 2012-05-11
FR2963708A1 (en) 2012-02-10
PT105836A (en) 2012-02-03
FR2963708B1 (en) 2019-05-17

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