FR2811817A1 - Electrical/telephone/video interior/outside house wall cable installation having support mechanism inner isolation wall and outer wall protruding with cable conduits passing and support mechanism closing. - Google Patents

Abstract

The embedding method for enclosed containers in a wall (2) having an intermediate isolation layer (3) has a support mechanism (5) protruding through the outer wall and forming the embedded container. The cable conduits are passed through the support outer and a closure mechanism (6) closes the support mechanism after inside wall construction.

Description

METHOD FOR FIXING RECESSED BOXES FOR

  ELECTRIC, TELEPHONE AND SIMILAR COMPONENTS

  IN WALLS ADDED TO EXTERIOR WALLS

HOUSES OR BUILDINGS

  The present invention relates to the installation of indoor cable networks (electrical, telephone, video, etc.) during the construction of houses or buildings. It relates more particularly to the installation of flush-mounting boxes for the components of these interior cable networks in back-to-back walls.

to the exterior walls.

  As a rule, the exterior walls of houses or buildings are lined internally with a brick wall coated with plaster, with the interposition of a layer of insulating material and an air space. In practice, after erection of the exterior wall, the insulating layer is glued on it, the brick wall is

  then realized, and finally the plaster layer.

  The installation of the interior cable networks on these walls begins just after the installation of the insulation layer: at this stage, slots are made there for the passage of the cable conduits, which are then closed with adhesive tape. The conduits exit from the insulating layer at points which have been identified and marked beforehand to correspond to the locations provided for components such as sockets, switches, wall boxes, etc. Then, the brick wall is built, with the passage of the cable conduits, substantially to the right

  from their exit from the insulating layer.

  It is at this stage that the installation boxes are installed. This operation requires first completely redoing a new location on the recently constructed brick wall, to determine with the required precision their positioning, after which holes are made in the brick to receive them,

  and they are sealed there with plaster.

  The invention results from a reflection carried out with a view to making this box laying operation

  simpler and faster installation.

  It therefore consists of a method of installing flush-mounting boxes for components of interior cable networks, in an interior wall backed by an exterior wall of a house or building with the interposition of a layer of insulating material applied to said exterior wall, characterized in that prior to the construction of said inner wall, is fixed on said outer wall at each of the locations of the components provided on said inner wall, a support means projecting perpendicularly and having at its distal end a mouth intended to receive by interlocking a flush-mounting box for the corresponding component, said support means having a length such that said mouth is substantially flush with the outlet of said interior wall to be built later; and in that the cable conduits which have to arrive in the embedding box have passed through said mouth; so as to allow the installation of said embedding box by simple fitting into said mouth of said support means, after said wall

interior was built.

  In practice, said installation box is advantageously fixed by simple bonding in said

mouth of said support means.

  The invention also relates, as a device, to said support means for carrying out said method, characterized in that it comprises a first base end provided with means for fixing it orthogonally projecting from a wall, and a distal end with an axially arranged mouth and intended to receive by interlocking a box

  for which it is intended.

  In a preferred embodiment of the invention, the support device comprises a portion of tube or pot, one end of which is said base end, while the other end constitutes said mouth, passages for cable conduits being provided in the tube wall, between said

  first base end and said mouth.

  Advantageously, said first end is open, and as fixing means, it comprises a washer to be screwed onto a wall, intended to receive it

by nesting.

  These and other features and advantages of the invention will become apparent in the

  description which will follow and the attached drawings, in

  which: Fig. 1 is a diagrammatic view in vertical section showing a mounting box installed in accordance with the invention, and FIG. 2 is a schematic exploded perspective view of a mounting box and a means of

  support according to the invention which corresponds to it.

  In Fig. 1, is shown in section a portion of a house or building wall facing the outside and conventionally formed of an exterior wall 1 and an interior wall 2 attached to it with the interposition of a layer of material insulator 3 and

an air gap 4.

  In the construction process, after the insulating layer has been laid on the exterior wall 1, a first operation relating to the installation of the various interior cable networks (electrical, telephone, video, etc.) is carried out, which consists in placing the cable conduits in the layer of insulating material 3. For this purpose, passage slots are made in the insulating layer 3, which are then closed with adhesive tape. The cable conduits exit from the insulating layer 3 at determined points to serve components such as sockets, switches, connection boxes, wall boxes, etc., the installation boxes of which are placed later, after the wall internal 2,

  usually made of bricks, was built.

  According to the invention, during this first operation of placing the cable conduits, a support device 5 for this component is also placed at each point of installation of a component as mentioned above, which is fixed so precise projecting from the outer wall 1. The device 5 has a mouth 52 internally shaped to receive by interlocking a recess box 6 corresponding to the component, which will pass through the inner wall 2 to be built then, flush

approximately on its surface.

  In the form shown in Figs 1 and 2, the device 5 comprises as a body a portion of tube or pot 50, for example of polyvinyl chloride, open at its two ends. It further comprises a washer 55 shaped to fit intimately into the base end 51 of the pot 50, and the thickness of which is sufficient to ensure good hold.

nesting.

  The other end of the pot forms the mouth 52 intended to receive by interlocking the box

installation 6.

  In addition, holes 53 distributed peripherally in the wall of the pot 50, in an intermediate position between its two ends, are provided for the passage

cable conduits.

  The pot 50 can of course exist as required in several lengths, or alternatively, it can be provided with an additional extension part to which it can be connected by interlocking, with possibly the possibility of

  adjust the nesting depth.

  As illustrated in FIG. 1, the installation of the support device 5 and its mounting box 6 is very simple. First of all, at the location of the intended component, identified with precision, a cut is made in the layer of insulating material 3, at the bottom of which is fixed by screwing a washer 55 on the outer wall 1. A pot 50 of the appropriate length is then fitted and preferably glued to the washer 55. Then the cable conduits are passed

inside the pot 50.

  The installation of the installation box 6 takes place after the wall 2 has been constructed, with the pot 50 passing. The installation is then limited to the simple fitting of the embedding box 6 into the mouth 52 of the pot, and to its blocking by means of the hooks with which it is conventionally provided and / or by gluing. Preferably, the inside of the pot 50 behind the installation box 6 is stuffed with insulating material around the cable conduits, this possibility constituting an additional advantage of the invention, due to the elimination of any air passage. from the air gap 4 through the flush-mounting box 6 and its

component.

Claims (4)

  1) Method for installing flush-mounting boxes (6) for components of interior cable networks, in an interior wall (2) backed by an exterior wall (1) of a house or building with the interposition of a layer of insulating material (3) applied to said outer wall (1), characterized in that prior to the construction of said inner wall (2), is fixed to said outer wall (1) at each of the locations of the components provided on said inner wall (2 ), a support means (5) projecting perpendicularly and having at its distal end a mouth (52) intended to receive by interlocking a recessing box (6) for the corresponding component, said support means (5) having a length such that said mouth (52) is substantially flush with the outlet of said interior wall (2) to be built later; and in that the cable conduits which have to arrive in the embedding box (6) have passed through said mouth; so as to allow the establishment of said mounting box (6) by simple fitting into said mouth (52) of said support means (5), after said inner wall has been constructed. 2) support device for implementing the method according to claim 1, characterized in that it comprises a first base end (51) provided with means for fixing it orthogonally projecting from a wall (1), and a distal end with a mouth (52) arranged axially and designed to receive by interlocking a flush-mounting box (6) with which it is intended for.   3) Device according to claim 2, characterized in that said support device (5) comprises a portion of tube or pot (50) one end (51) of which is said base end, while the other end constitutes said mouth (52), through holes (53) for cable conduits being provided in the wall of the pot (50), between said first   base end (51) and said mouth (52).   4) Device according to claim 3, characterized in that said base end (51) of the pot (50) is open and in that it comprises, as fixing means, a washer (55) to be screwed on   a wall, intended to receive it by interlocking.   ) Device according to claim 2 or 3, characterized in that said pot (50) comprises an additional part to which it can be connected   by interlocking, to lengthen it.