DE8702910U1 - Mounting device for attaching wall boxes - Google Patents

Description

Mounting device for attaching wall boxes Description

The innovation relates to a mounting device according to the generic term of claim 1.

Wall boxes are usually installed by first fixing the box in a wall using a quick-setting plaster or mortar. Before the box sets, the cables laid in the wall are inserted into the box for later connection to an electrical distribution element that is housed in the wall box. This often results in a subsequent change in the position of the wall box, with the result that it either has to be re-fixed immediately, which is a laborious process, or that it is only discovered during the plastering work that the box is crooked or that its height in relation to the wall surface deviates from the norm.

■The conventional installation of earth boxes is complicated and time-consuming; without precise and proper

Execution often leads to undesirable positional deviations, especially if the wall break-out is too large and inaccurate.

In contrast, the innovation is based on the task of creating an assembly aid for the easy and precise installation of wall boxes.

Such an assembly aid consists of a bracket according to

the character of claim 1. Such a *

The bracket, preferably made of a flat metal or plastic profile, can be either straight or, to take the height of the plasterboard into account, be bent on one side so that the wall boxes are attached in a way that protrudes above the surface of the shell wall. This ensures that their opening is flush with the later plaster surface.

When installing wall boxes in already finished surfaces of a wall or similar, e.g. a plaster cavity wall, it is of course not necessary to bend the bracket; in this case the bracket has the shape of a straight flat profile.

Any flat profile that is wide enough to accommodate the slots with the extension holes for fitting over the screw heads of the screw connections in the wall boxes is suitable.

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and which is stable enough to carry one or more wall boxes, which are fastened in the slot area using the screws mentioned _. For stability reasons, the profile could also be made as a flat U-profile, e.g. made of aluminum,

The assembly is carried out as follows: first the wall boxes are screwed to the bracket; then the whole is inserted into the prepared wall opening; the ends of the brackets that protrude to the side are then nailed to the wall surface. To ensure that the bracket can be used multiple times, it is advisable to reinforce the corresponding nail holes, e.g. in the case of a plastic bracket, a reinforced hole edge that protrudes above the surface around each nail hole opening or a rib that accommodates the nail hole openings.

As a result, the new bracket enables a stable and precise temporary fastening of the wall boxes, which can be wired without effort and then

can be plastered. After plastering and setting of the plaster compound, the bracket is removed for reuse. Only then is the wall surface plastered. Depending on the usual plaster thickness, the bracket is offset by about 1 cm, so that after plastering work is completed, the edges of the wall boxes are flush with the plaster surface.

The brackets can be made in different lengths

to be adapted to the respective number of wall boxes to be arranged next to each other; if there are several wall boxes,

Brackets with a larger cross-section can be used to

sagging when installing the wall boxes

impede.

The use of the new bracket speeds up and simplifies the installation of the wall boxes; it is no longer important to find the right size for the wall opening. The bracket is inexpensive to manufacture; the purchase costs are definitely justified by its reusability and the other advantages mentioned.

Two embodiments are explained below using the drawing. It shows:

Fig. 1 a bracket with a wall box attached to it

Fig. 2 a cross-section through a bracket attached in front of a wall excavation according to Fig. 1

Fig. 3 a bracket with two wall boxes and

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on the wall surface.

Fig. 4 the bracket according to Fig. 3 after its attachment Fig. 1 shows an elongated bracket (1) on which?

k a wall box (2) by means of the wall box already e

S is secured by existing screws (3). The screws |

are accommodated in mounting slots (4), which are aligned with respect to *

of the bracket (1) on the same side into an extension hole (5). The extension hole (5) makes it easier to connect the bracket (1) to the wall box (2), as the screws (3) do not have to be removed from the associated threaded hole in the side wall of the wall box (2) but only slightly screwed outwards in the threaded hole. The

The bracket (1) is placed over the screws (3) in such a way that the extension holes (5) pass over the screw heads, after which the screw necks enter the mounting slots (4) by moving the bracket (1) accordingly. The screws (3) are then tightened. The assembly unit consisting of the wall box (2) and bracket (1) is then attached to the surface of the shell wall using nails (6). To attach the nails (6), the bracket (1) has nail holes (7) adjacent to its two ends, each of which has a reinforced hole edge (8) to make nailing easier and to prevent wear on the bracket (1). The wall box has (Fig. 2) on diametrically opposite sides an inwardly projecting rib (9) in which a screw insert is provided for receiving a fastening screw (3). The fastening screws (3) are used to attach an electrical distribution element inside the wall box (2). In this case, the screws (3) also serve to fasten the bracket (1) intended to aid assembly. In the illustration in Fig. 2, the bracket has a bend (10) which ensures that the wall box (2) is positioned precisely inside the wall opening (11) into which it is plastered, protruding from the surface (12) of the unfinished wall by the thickness of the plaster.

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Figures 3 and 4 show a corresponding bracket for fastening two wall boxes (2) connected to one another via a connecting bridge (13), whereby their diameter or the distance between the screw connections is now 60 in accordance with an applicable standard. Opposite their connection point, both wall boxes (2) have lateral connection pieces (14) through which the electrical cables laid in or on the wall are introduced or connected to the boxes. The bracket (1) has a total of three mounting slots, namely two outer mounting slots (4) and a central mounting slot (15), through which the hold of the two wall boxes (2) on the bracket (1) can be further improved.

The extension holes (5) of the mounting slots (4) can of course also be omitted; in this case, the screws (3) must first be completely unscrewed from the screw insert of the wall boxes, and then re-fastened after the bracket (1) has been put in place.

to become.

Claims (5)

Mounting device for attaching Hauer boxes Protection claims 1. Mounting device for attaching wall boxes, which serve to accommodate distribution elements such as switches, sockets, branches or the like for the electrical current, whereby the wall boxes (2) are each inserted into a recess in the associated wall, into a wall opening (11) or the like and secured therein during their assembly, characterized, that it consists of an elongated bracket (1) having at least two mounting slots (4) which are arranged at a distance from each other corresponding to the diameter of the wall box (2), and that the bracket (1) has nail holes (7) outside the section between the mounting slots (4). 2. Mounting device according to claim 1,
characterized, that the mounting slots (4) with respect to the bracket (1) merge into an extension hole (5) towards the same end. 3. Device according to claim 1 or 2, characterized in that the bracket (1) has, outside the section having the mounting slots (4), a crank (step (10) on both sides of this section in the same direction perpendicular to the bracket surface, the height of the crank (10) corresponding approximately to a normal plaster thickness. 4. Device according to claim 1, characterized in that the distance between the mounting slots (4) corresponds to the distance between two screw inserts on the wall box (2) that serve to attach an electrical distribution element. 5. Device according to one of claims 1 to 4, characterized in that more than two mounting slots (4) are provided at intervals that correspond to the distance between the screw inserts of wall boxes (2) arranged next to one another.