DE3328393A1 - LIGHT GRID - Google Patents

Abstract

1. A light screen having two longitudinal walls (1) which are parallel to one another and have edge pieces (11) which are bent back to form a V, and transverse plates (2) which are transversely arranged between the longitudinal walls and at each end face pass through assigned plug slots (1.1, 1.2) in the longitudinal wall (1) by means of two hook-shaped retaining lugs (2.1, 2.2) with rear notches (20), and are fixed in the correct position by means of a locking edge (21) which is supported on a resilient counter-edge (110) of the longitudinal walls (1), characterised in that the locking edge (21) is arranged at the end of the lower (2.2) of the two retaining lugs and the counter-edge (11) is arranged in the edge piece (11) of the longitudinal wall (1).

Description

SIEMENS AKTIENGESELLSCHAFT Our mark

BERLIN and MUNICH VPA gn ρ j c A g nr

Luminaire grid

The invention relates to a light grid according to claim 1, as is known from DE 27 58 261.

In this known light grid is the locking edge the cross-bolt between the two retaining tabs and the opposite edge at the lower end of one of the slots in the Arranged longitudinal wall. Therefore, the area of the longitudinal wall that lies between the two retaining tabs must be over the latching edge are elastically deformed, which is a considerable, especially when the spacing of the retaining tabs is small Requires effort, especially with greater strength of the longitudinal wall; this complicates the assembly and harbors the Risk of damage during the assembly process.

The invention is therefore based on the object to To fix the target position of transverse lamellas and longitudinal walls, arrange the necessary locking and counter-edges in such a way that that assembly is possible with less effort.

The solution to this problem according to the invention is characterized in claim 1. In the invention, the opposite edge lies in the V-shaped, upwardly bent edge leg of the longitudinal wall, which - since it is free around the bending edge dernd - has a greater elasticity and therefore the insertion process opposes less resistance. In the connector according to the invention are also larger Tolerances allowed.

It is particularly advantageous to attach the opposite edge to the unte-Ba 1 Sur / July 18, 1983

-i- VPA 83PIStBDi

The right end of a slot open at the top is to be laid in the edge leg: In this case, the angular position of the transverse lamellas is also fixed in relation to the longitudinal wall.
5

An embodiment of the invention is based on the figures explained in more detail, which show the connection of a transverse lamella with a side wall, namely

1 shows a cross section through the longitudinal wall and FIG. 2 shows a plan view of the longitudinal wall from the outside.

The course of the end face of the transverse lamella 2 is the shape the adjacent longitudinal wall 1 of the luminaire grid adapted so that it is practically seamless on this longitudinal wall is applied; In the exemplary embodiment, the longitudinal wall 1 is straight in the area of the transverse lamella. Two hook-shaped retaining tabs 2.1, 2.2 are spaced from one another from the end face of the transverse lamella 2 which each enclose with the end face 200 an upwardly directed undercut 20.

The side wall 1 of the luminaire grid has two slots 1.1, 1.2 with such dimensions for each transverse lamella 2 that the retaining tabs 2.1, 2.2 stick through and with the undercuts 20 against the upper edge of the Let the slots press.

This desired position of the longitudinal wall shown in the figures 1 and cross lamella 2 is fixed by the lower retaining tab 2.2, which is open at the top Holding slot in the V-shaped bent back edge leg 11 of the side wall 1 extends therethrough; thereby bounces the lower edge of the holder slot, referred to as the opposite edge 110 12 against the locking edge 21 of the retaining tab

3328393 VPA 83 P 1548DE

2.2: This pushes the transverse lamella 2 upwards and So held in the target position shown. That is true also for the angle between the transverse lamella 2 and the Longitudinal wall 1, as a rotary movement of the transverse lamella in the horizontal plane around the slots 1.1, 1.2 with a correspondingly close fit of the retaining tab 2.2 in the Holding slot 12 is no longer possible. Usually amounts to the angle «C between the transverse lamellas and the Longitudinal wall 90 °; in this case the plug-in slots 1.1, 1.2 and the holding slot 12 are in the same vertical position Section plane which encloses an angle of 90 ° with the longitudinal wall 1.

The fixing according to the invention of the transverse lamellae is better and the assembly the easier, the smaller the acute angle O ^ between the locking edge 21 and the edge leg 11; this should be less than 45 °.

VPA 83 P 1 5 4 8 DE

Reference list

1 longitudinal wall 11 edge legs (bent back in a V-shape)

1.1, 1.2 plug-in slots 110 opposite edge 12 retaining slot

2 cross lines 200 face

2.1, 2 "2 retaining tab (hook-shaped)

20 undercut

21 locking edge 15

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Claims (2)

χ VPA 83 P 1 5 4 8 DE Claims θ- Luminaire grid with two parallel longitudinal walls (1) with a V-shaped bent back edge leg (11) and transversely arranged between the longitudinal walls transverse lamellas (2), which are on each end face with two hook-shaped Retaining tabs (2.1, 2.2) with undercuts (20) through assigned slots (1.1, 1.2) in reach through the longitudinal wall (1) and in the desired position are fixed by a locking edge (21) which is against a resilient counter edge (110) of the longitudinal walls (1), characterized in that the locking edge (21) at the end of the lower (2.2) of the two retaining tabs and the opposite edge (110) are arranged in the edge leg (11) of the longitudinal wall (1). 2. Luminaire grid according to claim 1, characterized in that 'that the opposite edge (110) at the lower end of an upwardly open retaining slot (12) in the edge leg (11) through which the end of the the lower retaining tab (2.2) engages.