WO2019097277A1

WO2019097277A1 - Assembly of an electrical installation box with a tab for securing to walls

Info

Publication number: WO2019097277A1
Application number: PCT/IB2017/057187
Authority: WO
Inventors: David Felipe Caicedo Pinto; Victor Alejandro CAICEDO PINTO; John Hawer BARINAS GUTIERREZ
Original assignee: David Felipe Caicedo Pinto
Priority date: 2017-11-16
Filing date: 2017-11-16
Publication date: 2019-05-23
Also published as: CO2018005304A2

Abstract

The present invention relates to an assembly of an electrical installation box, which includes at least one tab at each corner that projects through a side window, wherein said tab ends in a toothed stop forming an L at the end thereof. In particular, the invention relates to an assembly of an electrical installation box with a tab and an insulating window suitable for securing said box against the wall in confined spaces formed by fibre-cement or plaster boards or panels which form walls, without the need to use screws or other fastening elements. Likewise, the present invention relates to an assembly of an electrical installation box that includes several types of tabs and insulating windows in order for the cover assembly of the installation to be able to adapt to different widths of walls made of plaster.

Description

ASSEMBLY OF ELECTRICAL INSTALLATION BOX WITH

TONGUE TO SECURE ON PLASTER WALLS

D E S C R I P C I O N

OBJECT OF THE INVENTION.

The object of the present invention is an electrical installation box assembly that includes at least one tongue at each corner protruding from a side window, where said tongue ends in a toothed stop disposed at the end thereof.

Particularly, it refers to an assembly of electrical installation box with tongue and insulation window adapted to secure against the wall said box in narrow construction formats based on plaster or fiber cement panels or panels that form walls, without the need to use screws or different fastening elements. Likewise, the present invention refers to an assembly of electrical installation box that includes several modalities of tongue and window of isolation so that the cover assembly of the invention thus adjust to different types of width of walls made of plaster. The need of the present invention lies in solving the fastening system in plaster walls, where there is not enough space between walls and thus obtain an easy and efficient installation system.

Therefore the object of the present is to provide an assembly of electrical installation box with tab and window of isolation that does not require additional fastening elements, such as bolts, nails, sheets, adhesives and the like, where it becomes necessary to hold during the installation of electrical boxes.

The present invention meets these needs and provides other related advantages.

FIELD OF THE INVENTION.

The present invention relates to an assembly of electrical installation box with tab and window of insulation adapted to secure against the wall said box in narrow construction formats based on walls formed of plaster or fiber cement, without the need to use screws or different elements of subjection.

It may also be applicable to the construction industry of prefabricated houses in wood, sheet or systems where the space between sheets or panels before and after is scarce and where other fastening systems including perforations are made difficult or inadequate.

BACKGROUND OF THE INVENTION. As it is known, the system of construction in dry or walls of plaster or fiber cement, commonly called in some countries as "Drywalf '. This is a constructive method consisting of plasterboard (gypsum) or fiber cement, fixed to a light reticular structure made of wood or galvanized steel, in which the manufacturing and finishing process does not use water.

The construction system in Dry (Drywall), is a technology used throughout the world for the construction of partitions, ceilings and enclosures, in all types of architectural projects. The main advantages offered are its speed of execution and versatility, reduced weight, constructive cleaning, fewer items to transport and a lower cost than traditional systems based on bricks or cement based on water, also offering better levels of comfort and ease when making repairs or modifications in partitions or false ceilings.

The main problem lies in the installation of electrical ducts and the consequent fastening of the electrical installation boxes on the plates that make up each wall. This is because each plate is thin and relatively fragile, so that some types of electrical boxes expand and deform with the passage of time. In addition, it is necessary to replace the plasterboard section because the box is released little by little and must be reinsured.

There are several types of electrical installation box. There are built-in boxes made of rigid self-extinguishing polyvinyl chloride (PVC) with thermal resistance of -5 ° C to +60 ° C. These boxes are intended for circuits of 400 V voltage and maximum intensity of 16 A. The boxes for hollow partition are made of rigid polyvinyl chloride self-extinguishing (PVC) with thermal resistance of -5 ° C to +60 ° C. The surface boxes are also constructed from materials such as rigid self-extinguishing polyvinyl chloride (PVC) with thermal resistance from -5 ° C to +60 ° C. There are also electrical installation boxes with plastic covers that comply with the resistance test against excessive heat and combustion of incandescent wire at 650 ° C.

The technique of securing said boxes to systems dry construction relieves various developments such as described in US Patent USA N ^Q US8242360 Bercy et al., Illustrates an electrical junction box adapted to mented on a wall of plaster without fixing to an asparagus. The junction box has four tongues that move pivotably between a retracted position within the junction box and an extended position that extends through respective grooves formed in the side walls of the junction body. The tongues are rotated by a turning screw in a position in contact with the plaster wall. A pair of flange members is secured to a leading edge of the box to engage the interior surface of the plaster wall. The tabs and flanges support the weight of the junction box in the plaster wall. Even though this development has the facility of inclusion in between narrow plates, it does not pressurize the box against the wall and over time, the protruding tongues give way and the box becomes loose from the wall.

Another development in the United States of America patent N ^Q

US6170685 to Currier et al., Illustrates an electrical junction box assembly for assembly and installation on a dashboard site, with at least two opposed panels each having a pair of separate and respective front flanges, centered laterally on the panel, which It is included in the central hole by means of a retaining screw and rotating retainer type mounting clips. The unfolded box is configured with Live hinge lines to allow for easy folding and quick assembly of adjacent sidewall edges to form a rigid enclosure. The retaining clips are retracted with their retaining screws in the clip grooves of the panels to obtain clearance. The box is inserted through the board until the tabs on the front face allow it, then the retaining screws are rotated, whose first quarter turn rotates their respective retaining clips from the retracted position to an extended position behind the board. An additional clockwise rotation of each screw brings its retaining clip forward in a three-point fixed grip with its respective pair of flanges on the board. The retaining screws are drilled in the center and threaded, and spaced to accept set screws for standard size devices installed in the box, thus providing structural support and a convenient point for electrical connection to ground. This development is effective but its production cost is unacceptable because it comprises a complex mechanism that includes screws, bumpers and live hinges and for its installation requires tools to secure the screws, taking time in the location and securing of each box.

Therefore, there is a need for an economical, efficient and easy to install solution, with the least amount of material use and with the best and quickest way to install.

DESCRIPTION OF THE INVENTION.

The object of the present invention is an electrical installation box that includes at least one tongue at each corner protruding from a side window, where said tongue ends at a toothed stop disposed at the end thereof. Particularly, it refers to an assembly of electrical installation box with tongue and insulation window adapted to secure against the wall said box in narrow construction formats based on plaster or fiber cement panels or panels that form walls, without the need to use screws or different fastening elements.

DESCRIPTION OF THE FIGURES.

To further clarify the invention and its advantages compared to the known art, the possible forms of illustrative and non-limiting embodiments of the application of said principles are described below with the help of the attached drawings.

Figure 1 illustrates in exploded view in top perspective the electrical installation box assembly according to the present invention.

Figure 2 illustrates in exploded perspective view the electrical installation box assembly including a combination of tongue modes according to the present invention.

Figure 3 illustrates the electrical installation box assembly in its installation state according to the present invention.

Figure 4 illustrates the electrical installation box assembly in its installation state according to the present invention.

Figure 5 illustrates a second square box shape according to the present invention.

PREFERRED EMBODIMENT OF THE INVENTION. The object of the present invention is an electrical installation box that includes at least one tongue.

Particularly based on FIG. 1, the electrical installation box 1 comprises a polygonal body with left side walls 2 and right 3 closed by front walls 4 and rear wall 5 and a base 6 which closes the box 1 below.

At its open upper edge it comprises a perimetral flat lip 7 which serves as a stop for the box to adjust to overlap the gypsum board with the edge.

According to the present invention there is provided a window 8 that communicates the interior of the box 1 with the outside. Said window 8 is arranged in preferred embodiments on the left 2 and right side walls 3, disposed next to the base 6, separated by a housing wall 9 dividing the edge of the base 6 and the window 8.

According to the present invention, also according to FIG. 2, the electrical installation box 1 is illustrated, which additionally comprises adjustable tabs 10. Each tab 10 comprises an elongate body defined by a rear face 1 1 and a front face 12 defining a lower end and an upper end. Said rear face 1 1 comprises a central channel along the length of the tongue 10 including staggered pressure teeth 13. A centered guide 14 is disposed on the front face 12 along the entire length of said tongue 10. At the end end of said tongue 10 there is an L-toothed stop 15. The stop 15 may comprise toothed extensions to lighten the tongue weight and can comprise in alternate modalities needles or coupling nails to be gripped in the plaster of the counter wall. For its part, the electrical installation box assembly 1 additionally comprises a position channel 16. Said position channel 16 projects from the window 8 until it exceeds the flat lip 7 and receives, houses and rails the elongated body of the tongue 10. .

In preferred embodiments said channel 16 comprises an elongate flexible retaining sheet 17 including against engagement teeth 18 for gripping against the teeth 13 of the tongue 10.

In that sense, when the tongue 10 is inserted into the position channel 16, the flexible sheet allows the upward movement following the centered guide 14 of the tongue 10 but the coupling between the staggered teeth 13 of the tongue 10 and the counter teeth 18 of the tongue. the flexible sheet 17 within the channel 16, provide restriction of the downward movement of the tongue 10.

Similarly according to Figure 3, according to the invention, the tongue 10 is included inside the box 1 so that the wall 9 prevents its exit, so that it can effectively enter inside the cavity made inside the plates 19. of plaster. Once the box has been arranged, the tab 10 is pulled and the stop 15 is adjusted against the wall on the inner surface of the plasterboard as illustrated in figure 3. Thanks to the arrangement of teeth and against teeth, the tongue remains secured under pressure and not until the flexible sheet 1 7 is bent by pressing with the finger, it is possible to release the tongue 10.

Thus effectively, the box 1 enters into small spaces and the tongue is housed inside the box without interposing at the entrance of the box and once positioned only pull the tongue and is installed as illustrated in Figure 4 . In alternative embodiments, the box 1 may comprise a square shape as illustrated in Figure 5.

In preferred embodiments the channel 1 6 may comprise the flexible sheet 17 but this can be omitted and the channel 16 simply arranged. Additionally it is possible to combine several types of channels, for example a corner with channel 16 without flexible sheet 17 and a channel 16 with sheet flexible 17 disposed on the opposite wall as illustrated in Figure 5.

In the same way they can be combined with the inclusion of windows or without the window according to figure 2, where the tongue enters through channel 16 from base 6 or can enter through window 8 according to the opposite side.

it can be arranged in each corner protruding from a side window, where said tongue ends in a toothed stop disposed at the end thereof.

Particularly, thus the present invention relates to an assembly of electrical installation box 1 with tongue 1 0 and window 8 of insulation adapted to secure against wall 19 said box 1 in narrow construction formats based on plates or panels of gypsum or fiber cement that They make up walls, without the need to use screws or different fasteners.

Thus, based on figures 1 to 4, the present invention comprises an electrical installation box assembly comprising a polygonal body with left side walls 2 and right 3 closed by front walls 4 and rear wall 5 and a base 6 that completes box 1 below, forming an open box above and that it includes an upper edge with a flat perimetral lip 7 from overlap to projecting perpendicularly.

Said assembly according to the main object of the present invention then comprises a window 8 communicating the interior of the box 1 with the outside; wherein said window 8 is disposed on the left (2) and right (3) side walls, separated by a receiving wall (9) that divides the edge of the base (6) and the window 8.

A position channel 16 is projected vertically into the interior of the side wall from the upper edge of said window 8 to the perimetral plane lip 7.

It also comprises an adjustable tab 10 comprising an elongate body defined by a rear face 1 1 and a front face 12 defining a lower end and an upper end, where said rear face 1 1 comprises a central channel along the entire length of the tab 10 including stepped teeth 13 of pressure and on the front face 12 a centered guide 14 is disposed over the entire length of said tab 10, where a stop 1 5 that projects perpendicularly to the lower end end of said tab 1 0 is arranged. to the main axis of the tongue 1 forming a configuration in L.

Thus, for the present invention, said tongue 10 is housed, locked and moved within the position channel 16, where the L stop 15 of said tongue 10 is disposed with the lower end inside the box 1 in the outward direction of the side wall with interposition of the housing wall 9, as illustrated in Figure 2.

As seen in the figures, the stop (15) comprises toothed extensions with needles or coupling nails at each end end. Said channel 16 comprises an elongate flexible retaining sheet 17 including against engagement teeth 18 for gripping against the staggered teeth 13 of the tongue 10 and said tongue 10 is disposed within the position channel 16, where the flexible sheet allows upward movement following the centered guide 14 of the tongue 10; and, the engagement between the staggered teeth 13 of the tongue 10 and the counter teeth 18 of the flexible sheet 17 within the channel 16, provide restriction of downward movement of the tongue 10.

According to the invention, a first open condition is provided where the L stop 15 of the tongue 10 is included inside the box 1 so that the wall 9 prevents its exit; and, in a second closed and secured state where the tongue 10 ascends and the stop 15 in L is free and protrudes through the window 8 to secure the box 1 in counterpart.

Similarly, the flexible sheet 17 restricts the vertical movement of the tongue 10 in the second closed state by the arrangement of teeth 13 and against teeth 18.

According to the methods described, the box 1 can comprise a channel 16 without a flexible sheet 17 in a side wall and in other embodiments the opposite side wall comprises a channel 16 that includes a flexible sheet 17.

However, the box assembly according to the invention may also comprise in one side wall a window 8 conjugated with a channel 16 but in the opposite side wall only one channel 16.

The boxes according to the present invention can be made from materials such as rigid polyvinyl chloride self-extinguishing (PVC) with thermal resistance from -5 ° C to +60 ° C that comply with the test of resistance against excessive heat and combustion of incandescent wire at 650 ° C. Only some preferred embodiments of the invention have been illustrated by way of example. In this regard, it will be appreciated that the construction of the box assembly for electrical installation, as well as the configurative arrangements can be chosen from a plurality of alternatives without departing from the spirit of the invention according to the following claims.

Claims

one . Electrical installation box assembly comprising a polygonal body with left (2) and right (3) side walls closed by front walls (4) and rear wall (5) and a base (6) that completes the box (1) by underneath, forming an open top box and including an upper edge with a flat perimetral lip (7) of overlapping stop that projects perpendicularly, where said box assembly is CHARACTERIZED BECAUSE it additionally comprises:

a window (8) that communicates the inside of the box (1) with the outside; wherein said window (8) is arranged on the side wall, separated by a receiving wall (9) that divides the edge of the base (6) and the window (8);

a position channel (16) projecting vertically inside the side wall from the upper edge of said window (8) to the perimeter plane lip (7);

adjustable tab (10) comprising an elongate body defined by a rear face (11) and a front face (12) defining a lower end and an upper end, wherein said rear face (11) comprises a central channel throughout the length of the tongue (10) including staggered teeth (13) and on the front face (12) a centered guide (14) is arranged over the entire length of said tongue (10), where the lower end of the tongue said tongue (10) is provided with a stop (15) projecting perpendicularly to the main axis of the tongue (1) forming an L-shaped configuration;

wherein said tongue (10) is housed, locked and moved within the position channel (16), where the L stop (15) of said tongue (10) is arranged with the lower end inside the box (1) in the outward direction of the side wall with interposition of the receiving wall (9).

2. Assembly of electrical installation box according to claim 1 CHARACTERIZED BECAUSE the stop (15) comprises toothed extensions with needles or coupling nails at each end.

3. Electrical installation box assembly according to claim 2, CHARACTERIZED BECAUSE said channel (16) comprises an elongated flexible sheet (17) of retention that includes against teeth (18) of coupling to be gripped against the staggered teeth (13) of the tongue (10)

4. Assembly of electrical installation box according to claim 3 CHARACTERIZED BECAUSE the tongue (10) is arranged inside the position channel (16), where the flexible sheet allows upward movement following the centered guide (14) of the tongue (10) ; and, where the coupling between the staggered teeth (13) of the tongue (10) and the teeth against (18) of the flexible sheet (17) inside the channel (16), provide restriction of downward movement of the tongue (10) .

5. Assembly of electrical installation box according to claim 4 CHARACTERIZED BECAUSE in a first state, the L stop (15) of the tongue (10) is included inside the box (1) so that the wall (9) prevents your exit; and, in a second state, the tongue (10) ascends and the stop (15) in L is free and protrudes through the window (8).

6. Assembly of electrical installation box according to claim 5 CHARACTERIZED BECAUSE the flexible sheet (17) restricts the vertical movement of the tongue (10) by the arrangement of teeth (13) and against teeth (18).

7. Assembly of electrical installation box according to claim 1 CHARACTERIZED BECAUSE the box (1) comprises on a side wall with a channel (16) without flexible sheet (17) and on the opposite side wall a channel (16) that includes a flexible sheet (17).

8. Assembly of electrical installation box according to claim 1 CHARACTERIZED BECAUSE the box (1) comprises in a side wall a window (8) conjugated with a channel (16) and in the opposite side wall only comprises a channel (16).