DE1880787U - FLUSH-MOUNTED SOCKET FOR ELECTRIC SWITCHES OD. DGL. - Google Patents

Description

R / UG572Mi7.fil

PATENT LAWYERS Dipl.-ing. LUDEWIG Dipl.-Phys. BUSE - Wuppertal-barm ε ν

33 Password: flush-mounted box

Company Gebrüder Merten, Gummersbach / Rhld.

Flush-mounted box for electrical Sehalter or the like.

The invention relates to a flush-mounted box for electrical switches, sockets and the like. For insertion, preferably in Prefabricated walls.

In the known installation devices of this type, the box is screwed to a hole in the prefabricated wall.

The invention aims to avoid such a screw connection and to continue the fastening of the cans mentioned at the beginning in thin walls to enhance. According to the invention this is achieved essentially in that distributed on the circumference of the can at different heights ending spreadable tongues are arranged. The arrangement secures the fastening of the box in walls of various types with the simplest means Strength, in which the respective tongues corresponding to the wall thickness are bent and their ends with the inside of the Jammed wall. The boxes can be made of metal or plastic and the tongues can be made resilient, so dfiss When you insert each socket into the hole in the wall.

are pressed and depending on the thickness of the wall supporting the can spring apart the tongues ending at the height in question. The tongues ending inside the bore also clamp the can in the wall bore, while the others The tongues automatically lock into place on the wall.

The tongues can be fastened as springs on the casing of the can by rivets or the like, or they can be made of elastic ones Form the plastic can in one piece. Such a box is easy to manufacture and can be used in prefabricated walls. You get by without plastering, so that no sound bridge can form within the prefabricated wall.

The box is advantageous for three different / thick walls designed and the tongues ending at the same height are arranged opposite one another, with two tongues next to one another arranged and the rest are distributed at a distance on the circumference of the can, so that a sufficient space as an attack surface remains for the expansion clamps of the insert body. By choosing a sufficient space in between, several Combine cans with one another or design them as double or triple cans.

The can can be in particular with projections distributed around the circumference parallel ribs that secure the can against twisting by pressing it into the supporting wall.

Further details of the invention are given in the following

Spelling explained.

The figures show an embodiment for the invention, namely:

Fig. 1 is a rear view of a can according to the invention,

2 shows the can in cross section before the tongues are spread apart,

3 shows the can according to FIG. 1 in a top view,

FIG. K shows a section along the line IV of FIG. 3 with the associated wall, and FIG

FIG. 5 shows a view of the can in direction A of FIG. 3.

The figures show a round flush-mounted box preferably made of elastic plastic with a protruding edge 6 and three pairs of opposing, resilient tongues 7 _} 8 and 9, the pairs 7 and 8 being arranged next to one another and the pair 9 between the pairs 7 and 8 distributed around the circumference and end at different heights.

The tongues 7-9 are as shown in FIG. 2 in the jacket of the can rectangular and knock-out stamped so that they can be bent out as strips according to the other figures and _{protrude at their upper end from the r} edge. The tongues 7-9 are adjacent parallel ribs which end with the edge 6 and protect the can against rotation. Between the tongues 7-9 is on the inner wall of the can at two opposite points

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a roughened surface 11 is provided on which the expanding claws of the insert body, not shown, engage.

According to FIG. 4, the can is inserted from above into a bore 13 in a wall 14, the tongues 7-9 being pressed together through the opening and the tongues spread when the edge 6 is pressed onto the hole at the level of the inside of the wall end up.

In FIG. 4, the tongues 9 are drawn out and with the wall 14 locked. If, however, the wall ends at the level of the tongues 8, the tongues 9 remain pressed against the bore 13 and give a additional bracket. At the same time, the ribs 10 are pressed into the bore when the can is inserted. The can is with the simplest means without plastering or the like? fixed in the wall, so that no impairment of the prefabricated walls Sound attenuation takes place.

As already mentioned, the figures show only one embodiment of the invention and this is not limited thereto; rather, there are many other designs and applications possible. The can can also be oval or rectangular and combined with other cans. Further The spring tongues can also be connected to the jacket by welding or the like, or the ribs can be distributed differently.

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Claims (5)

RA, 465 721 * 19. ?. PATENTANWÄLTE "DiPL.-iNG. LUDEWIG · dipl.-phys. BUSE - wuppertal-barmen claims: 1. Flush-mounted box for electrical switches, sockets or the like. for insertion in thin walls, characterized in that the flush-mounted box is distributed around the circumference and can be spread out from the jacket, has tongues (7-9) ending at different heights. 2. Flush-mounted box according to claim 1, characterized in that the tongues (7-9) can be broken out in the casing of the box at the ends are embossed. 3. Flush-mounted box according to claim 1 or 2, characterized in that tongues (7, 8, 9) are opposite each other at the same height and pairs (7, 8) are arranged adjacent to one another. 4. Flush-mounted box according to one or more of the preceding claims, characterized in that between individual tongues on the inner wall of the can opposing, roughened Areas (ll) are arranged. 5. Flush-mounted box according to one or more of the preceding claims, characterized in that the tongues (7-9) are assigned parallel ribs (10) which end at the edge (6).