DE102007044964A1 - Raster attachment for narrow built-in illuminator, has spring elements comprising flexibly ductile spring arms that are provided at ends of elements with noses, where noses are engaged into front sides recesses of bars - Google Patents

Abstract

The attachment has inner spring elements (10) fastened to a lamp housing (1), where the spring elements are engaged into recesses at a raster (5). The spring elements are attached to front faces (3) of the housing. The spring elements include two flexibly ductile spring arms that are provided at ends of the elements with noses. The noses are engaged into front side recesses of raster longitudinal bars. The spring arms are formed as U-shaped curves, which are opened downwardly. The spring elements are connected with the housing in an electrically conductive manner.

Description

The The invention relates to a grid attachment for fixing a grid in a recessed light.

In a known Rasterbefestigung ( DE 299 05 779 U1 ) is a retaining spring mounted as a spring element in a bearing part on the grid and slidably mounted in a recess in a fastened to the lamp housing guide member in which it rests at any time under bias. Guide member and bearing part are electrically connected to the lamp housing or grid, so that via the retaining spring, an electrical contact between the lamp housing and grid can be made.

Known are also systems for fixing grids, where ever at the grid and one on the lamp housing electrically conductive cooperate fixed spring element.

The Known grid fasteners are on the long sides the recessed lights or the grid used. As she each consist of at least two parts, they require an increased Width of the light. For technical and aesthetic reasons However, it is often necessary, the recessed lighting as possible narrow.

The Invention sets itself the task of a simple and inexpensive Raster mounting for narrow recessed lighting to create which requires no broadening of the lamp.

These Task is by a grid attachment to the main claim solved.

The Rasterbefestigung invention is attached to the End faces of the lamp attached and therefore does not lead to a widening of the luminaire housing. Since she only consists of a spring element, it is very simple and inexpensive manufacture and install. The grid can be inserted into the luminaire be by the noses of the spring arms through the front ends First of all, press the grid longitudinal strips aside until they click into the recesses.

Prefers are the spring arms as downwardly open U-shaped Arches formed. It can be one or both Legs of the U-shaped arc when inserting the grid over a relatively long way be elastically deformed, causing the Spring force can be kept low and damage the grid longitudinal strips is avoided.

Further is preferred that the spring element with the lamp housing is electrically connected. This will make it possible over the spring element is a protective contact connection from the lamp housing to produce the grid. This compound is preferred by pointed Claws on the spring element, preferably at its attachment area, produced, when inserting the spring element in the lamp housing penetrate the inner lacquer layer of the end wall and so on can make a metallic contact.

Especially simply the production of the protective contact connection, when the surfaces in contact with each other in the installed state of spring element and longitudinal edge strip an electrically conductive Establish contact. This can be done, for example, by that these surfaces are kept metallic bright.

Advantageous the spring elements have a mounting area which is attached to the lamp housing can be, and integrally formed on the spring arms are. This allows a rational production and a cost-effective installation of the spring elements.

It is further preferred that the spring elements of a suitable formed sheet metal blank. This can be z. B. by Punching, pressing and bending done. The spring arms can while the shape of leaf springs obtained. In the attachment area a tab can be punched out and bent down, laying down on the lamp housing, for example, a cutout in the housing wall penetrates and the wall or one formed on the inner wall engages behind. Also, the U-shaped bent spring arms can be made from the sheet metal blank. The noses, for example, as a section V-shaped contour, by bending the ends of the spring arms are formed.

The Invention will now be described with reference to a preferred embodiment explained in more detail with reference to the accompanying drawings. Show it:

1 the grid mounting according to the invention on a front end shown in longitudinal section of a recessed luminaire before the onset of the grid,

2 the representation of 1 after inserting the grid,

3 an inventive spring element seen from below,

4 the element of 3 seen from the side,

5 the element of 3 seen from the front,

6 a perspective view of this element.

In 1 is the end of a recessed luminaire with a luminaire housing 1 and with a reflector 2 shown in longitudinal section. Within the reflector is at least one (not shown here) fluorescent lamp. The recessed light closes at the end with an end wall 3 from, for attachment to a ceiling plate in the lower area a right-angled edge 4 having. Below the housing of the recessed luminaire is the grid positioned for installation 5 that is made of longitudinal strips 6 and at a right angle into these cross bars 7 is constructed. At the front wall 3 is a spring element 10 attached. This has a mounting area 11 and two (in this illustration exactly one behind the other) spring arms 12 on. The spring arms have the shape of a downwardly open U. One of the arms is located on the inner surface of the end wall 3 while the second is elastically movable in the direction of the longitudinal axis of the luminaire. This leg has at its end a V-shaped nose 13 on.

The grid longitudinal bar 6 is cut diagonally at its end. There is a ramp at its inner edge 8th and below a recess 9 educated. The recess 9 is shaped so that the nose 13 of the spring arm 12 engage and then hold the grid longitudinal bar in cooperation with a same attachment to the other end of the lamp grid against gravity.

The arrow P shows the direction of movement of the grid 5 when inserting into the luminaire housing 1 at. This upward movement touches the nose 13 of the spring arm 12 the sidelight strip on the ramp 8th and becomes from this towards the front wall 3 pressed, with the spring arm 12 deformed elastically. When the grid has reached its intended end position, the nose snaps 13 into the recess 9 a, whereby the grid is fixed. By choosing the slope of the ramp 8th and the inclination of the legs of the V-shaped nose 13 and the corresponding sides of the recess 9 For example, the force required for insertion or removal can be adjusted in a manner familiar to the person skilled in the art, the force required for removal, of course, having to be significantly greater than the weight of the grid.

The spring element 10 points in its attachment area 11 a punched and slightly bent tab 14 on. This is on an inside on the front wall 3 trained temple 15 postponed and engages behind this. To exclude a game in this connection, are small spring tongues 16 ( 3 to 6 ) is provided, which is elastic at the onset of the spring element on the end wall 3 support.

To the attachment area 11 integrally formed are two symmetrically opposite spring arms 12 , These are U-shaped bent, with the free end to a V-shaped nose 13 is bent. In this preferred embodiment, a widening of the leaf spring-shaped arm is provided to the nose, so that this nose when inserting securely on the ramp 8th the grid longitudinal strip rests, even if the grid is initially not exactly positioned.

The tab 14 and the temple 15 as well as the spring tongues 16 and the area of the front wall touched by these 3 can be metallic bright, so that between the spring element and the lamp housing 1 electrically conductive contact exists. Likewise, the noses can 13 and the edge of the sidelight 6 in particular in the region of the recess 9 metallic blank, whereby an electrical contact between the Federele element 10 and the grid 5 exists when the grid is installed. However, the end wall is preferred 3 painted throughout, and the mounting area 11 of the spring element 10 points to the sides, which are the spring arms 12 opposite, inwardly curved pointed claws 17 on. These can when inserting the spring element 10 penetrate into the luminaire housing the interior painting of the front wall and the metallic contact between the luminaire housing 1 and spring element 10 produce. Thus, the grid is connected to the protective contact of the lamp housing in a simple and reliable way.

That in the 3 to 6 As is readily apparent, the spring element shown can be produced from a suitably equipped sheet-metal blank by punching and bending. The material is mainly metal sufficient elasticity, such as spring steel or other steel of sufficient elasticity, including stainless steel, and alloys of other metals and conductive plastics with sufficient strength properties into consideration.

1

luminaire housing

2

reflector

3

bulkhead

4

edge

5

grid

6

Grid longitudinal strip

7

Grid cross bar

8th

ramp

9

recess

10

spring element

11

fastening area

12

spring arms

13

nose

14

flap

15

hanger

16

spring tongue

17

claw

P

movement direction of the grid

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 29905779 U1 [0002]

Claims (8)

Raster mounting for mounting grids ( 5 ) in narrow recessed luminaires with at least two inside the luminaire housing ( 1 ) fastenable spring elements ( 10 ), which can engage in recesses on the grid, characterized in that the spring elements on the end faces ( 3 ) of the luminaire housing ( 1 ) are mounted and in each case two elastically deformable spring arms ( 12 ), which in each case at the end with noses ( 13 ) are provided in the front side recesses of the grid longitudinal strips ( 6 ) can intervene. Grid fastener according to claim 1, characterized in that the spring arms ( 12 ) in a U-shaped and downwardly open arc. Raster attachment according to claim 1 or 2, characterized in that the spring element ( 10 ) with the luminaire housing ( 1 ) is electrically connected. Grid fastener according to claim 3, characterized in that the spring element ( 10 ) Claws ( 17 ) which, when inserted into the luminaire housing ( 1 ) the inner lacquer layer of the end wall ( 3 ) can penetrate. Grid mounting according to claim 3 or 4, characterized in that the surfaces in the installed state of contacting spring element ( 10 ) and raster longitudinal bar ( 6 ) establish an electrically conductive contact. Grid fastener according to one of the preceding claims, characterized in that the spring elements ( 10 ) a fastened to the lamp housing mounting area ( 11 ) and integrally formed thereon spring arms ( 12 ) exhibit. Raster mounting according to claim 6, characterized in that the spring elements ( 10 ) are made of a sheet metal blank. Raster attachment according to claim 7, characterized in that the noses ( 13 ) of the spring arms ( 12 ) are formed by bending the ends.