DE202008016819U1 - Walk-in light well cover for covering light wells, e.g. Cellar light wells - Google Patents

Abstract

Walkable light shaft cover, which consists of a flat, translucent plastic surface (1), preferably made of acrylic glass, in which the plastic surface (1) may have any ventilation opening (3), and at the bottom of the plastic surface (1) by machined metal profiles ( 4a / 4b), characterized in that one of the machined profiles (4a) extends behind the ventilation opening (3) along the entire length / width of the light shaft cover, and further profiles (4b) transversely or perpendicular thereto over the depth of the Cover extend, wherein the ends of the profile tubes (4a / 4b) merge into flat strips, which rest on the light shaft frame, Lichtschachtfalz (8), or the supporting Längsprofilrohr (4a), and that the machined profiles (4a / 4b) not directly connected to the plastic surface, (1).

Description

The The invention relates to a walk-in light well cover for covering of light shafts, such as basement light shafts.

conventional Light well covers usually consist of a Metal mesh that works for dirt, insects and moisture does not constitute a barrier.

moreover the metal meshes impair the incidence of light the light shaft.

Previous Solutions for light shaft covers, the one Plastic surface include, are usually additional attached to the conventional shaft grid. These solutions provide no improvement in terms of light incidence.

Light shaft covers in which the entire surface / construction consists of plastic (see Utility Model DE 20 2005 001 011 U1 ), however, often have significant deficiencies in statics and in the tightness against moisture. Among other things, because either no reinforcing bars are provided (see. DE 10 2004 038 963 A1 ), or the reinforcement strips do not rest on the light shaft frame. For plastic light well covers, which are provided with multiple extending over the length of the cover reinforcing bars, these often represent a barrier to air circulation, settles on the condensation, which can then lead to moisture accumulation on the cover and in the light shaft.

task this invention is to provide a light well cover, which offers all the advantages of a translucent cover, is highly stable and a virtually obstacle-free air circulation allows.

According to the invention achieves this object with the main claim 1. Further advantageous variants are defined in claims 2 to 9.

The Construction properties ensure a high load capacity the light shaft cover according to the invention and provide a low surface area for moisture, which penetrate in other inventions in joints and joints of the construction can.

The Light shaft cover consists of a flat plastic surface, for example made of acrylic glass. On the bottom is the plastic plate on machined metal profiled tubes or metal profiles on, of which a profit behind the vent over the entire length / width of the light shaft cover runs, and other profiles across the depth of the cover run, with the ends of the profile tubes with on the light shaft frame, or the load-bearing longitudinal profile tube. The edited Profiles are not directly connected to the plastic plate to the different thermal expansion of the materials not to hinder. The plastic plate of the invention Light shaft cover is at the bottom with a circumferential Raising strip provided, made of the same plastic It's like the plastic surface, and it's made with an adhesive firmly connected to this. Depending on where the machined profile tubes are the corresponding points of the circumferential ridge bar provided with a cutout, the machined profiles and thus the metal substructure with the acrylic plate fix in free-standing position. The load-bearing longitudinal profile tube is also in the appropriate places with cutouts provided to the over the depth extending profile tubes take. Ensure these design features optimal static properties, and allow one unobstructed air circulation between basement window and ventilation opening of the Light shaft cover, with minimized condensation on the underside of the plastic plate.

Around ventilation of the rooms adjoining the light shaft to ensure the inventive Light shaft cover with one or several ventilation openings be provided. The opening can be replaced by a corresponding Ventilation grille covered with integrated insect screen, to prevent the ingress of dirt, insects and small animals.

Around the light shaft cover on places exposed to the weather In addition to seal against moisture, the upper Edge of the plastic plate be milled out so that the cover slightly (about 2-4 mm) is raised and the edge of the light shaft frame overlaps by about 5 mm, with the edges of the light shaft cover are slightly rounded. The gap between the cover and the light shaft frame is thus eliminated and does not provide any invading moisture Attack surface more.

At The machined profile tubes can be installed an anti-burglar become.

The The invention will be more closely understood by way of example with reference to the drawings explained.

It demonstrate:

1 a view from above of the light shaft cover according to the invention,

2 a top view from below of the light shaft cover according to the invention,

3a a side view of the light shaft cover according to the invention,

3b a side view of the light shaft cover according to the invention with optional overlap,

4 a cross section of the support / fold ( 8th ) at the light shaft with inserted light shaft cover,

5 the substructure made of metal, profile ( 4a ), Profile across ( 4b )

6 a commercial ventilation grille ( 2 ).

In the 1 to 4 a light shaft cover is shown whose walk-in area ( 1 ) consists mainly of plastic, preferably acrylic glass. Acrylic glass has advantageous optical and mechanical properties. The glass-like visual appearance and translucence make it a suitable material to achieve the objective of the invention optimal light incidence through the light shaft. Among the advantageous mechanical properties include hardness and stiffness, which in turn serves the claim of the invention to achieve optimum static properties of the light shaft cover. In addition, they make the light shaft cover resistant to scratches and cracks.

From the plastic surface ( 1 ) can be a ventilation opening ( 3 ), which allows sufficient air circulation through the light shaft. The ventilation opening ( 3 ) can be used with a commercially available ventilation grille ( 2 ) are made of metal with integrated insect screen. Thus, the penetration of leaves, dirt and small animals is largely prevented.

At the bottom is the light shaft cover with a circumferential ridge ( 5 ) made of the same plastic. This raise bar ( 5 ) forms the contact surface with which the light shaft cover on the support / fold ( 8th ) of the light shaft rests. With the strength of the elevation bar ( 5 ), the light shaft cover can be adapted to the individual light shaft so that the light shaft and light shaft cover are flush with the surface. In addition, plastic frames ( 5 ) and plastic plate ( 1 ) stick together perfectly. The problems that often arise when bonding different materials and thus form a target for wet and weather conditions, can be eliminated.

2 shows the machined profile tubes attached to the underside of the light shaft cover ( 4a / 4b ) made of metal, which serve to reinforce the static. One of these profile tubes ( 4a ) behind the ventilation opening ( 3 ) along the entire length / width of the cover, further profiles ( 4b ) extend perpendicularly or transversely thereto across the depth of the cover. At the ends go the machined profile tubes ( 4a / 4b ) into flat strips which are loosely inserted into the corresponding cut-out ( 7 ) in the encircling listening bar ( 5 ), or the corresponding cutouts ( 6 ) of the longitudinal strip ( 4a ) einliegen and thus the supporting metal structure is fixed to the plastic plate free-standing. Through the connectionless storage of the processed profile tubes ( 4a / 4b ), which are insulated only by a silicone band, an unimpeded expansion or contraction of the different materials from the machined profile tubes ( 4a / 4b ) and the plastic surface ( 1 ), as well as the circumferential increase bar ( 5 ). The perpendicular to the longitudinal profile ( 4a ) arranged transverse profiles ( 4b ) also enable barrier-free air circulation with minimized condensate precipitation at the bottom of the plastic plate ( 1 ).

Instead of profile tubes ( 4 ), other profiles such as double-T-profiles (I-profiles) or U-profiles can be used.

3b shows a side view of the plastic cover with optional overlap ( 9 ) on the plastic plate ( 1 ).

By using thicker, elevation bars, the light well cover is slightly raised above the light box frame. The plastic surface ( 1 ) is slightly milled out, so that it rests overlapping on the light shaft frame and thus prevents the penetration of moisture.

1

Plastic plate

2

potential Ventilation grill made of metal

3

possible milled ventilation opening

4a

section tube along

4b

Profile tube across to ( 4a )

5

increase bar

6

Cut-out in the profile tube ( 4a )

7

Milling in the raised bar ( 5 )

8th

Lichtschachtfalz

9

overlap

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 202005001011 U1 [0005]
• - DE 102004038963 A1 [0005]

Claims (9)

Walk-in light shaft cover consisting of a flat, translucent plastic surface ( 1 ), preferably made of acrylic glass, in which the plastic surface ( 1 ) any ventilation opening ( 3 ), and at the bottom of the plastic surface ( 1 ) by processed metal profiles ( 4a / 4b ), characterized in that one of the processed profiles ( 4a ) behind the ventilation opening ( 3 ) along the entire length / width of the light shaft cover, and further profiles ( 4b ) extend transversely or perpendicular thereto over the depth of the cover, wherein the ends of the profile tubes ( 4a / 4b ) into flat strips, which on the light shaft frame, or Lichtschachtfalz ( 8th ), or the load-bearing longitudinal profile tube ( 4a ) and that the processed profiles ( 4a / 4b ) not with the plastic surface, ( 1 ) are directly connected. Walk-light roof cover according to claim 1, characterized in that the machined profile tubes ( 4a / 4b ) at the ends in flat strips that loose in the corresponding cutout ( 7 ) in the encircling listening bar ( 5 ), or the corresponding cutouts ( 6 ) of the longitudinal strip ( 4a ) einliegen and thus the supporting metal structure is fixed to the plastic plate free-standing. Walkable light shaft cover according to claim 1, characterized in that the light shaft cover on a circumferential, by an adhesive bond to the plastic plate ( 1 ) raised bar ( 5 ) rests from the same plastic. Walk-in light shaft cover according to one of the preceding claims, characterized in that the machined profile tubes ( 4a / 4b ) are trimmed at the ends so that they are at both ends with on the Lichtschachtrahmen / -falz ( 8th ) rest. Walk-in light shaft cover according to one of the preceding claims, characterized in that the profiles ( 4a / 4b ) can be either square, rectangular tube profiles or double-T, I, or U-profiles. Walkable light shaft cover according to one of the preceding claims, characterized in that the circumferential ridge ( 5 ) with cutouts ( 7 ) for the machined profile tubes ( 4a / 4b ), the dimensions of the machined profile tubes ( 4a / 4b ), so that the circumferential ridge ( 5 ) properly on the plastic plate ( 1 ). Walkable light shaft cover according to one of the preceding claims, characterized in that the machined profile tube ( 4a ) with cutouts ( 6 ) for receiving the vertically extending profile tubes ( 4b ) is provided. Walk-in light shaft cover according to one of the preceding claims, characterized in that the plastic plate ( 1 ) and circumferential raised bar ( 5 ) together with the height of the light shaft frame ( 8th ), so that the light shaft cover with the light shaft frame ( 8th ) flees. Walkable light shaft cover according to one of the preceding claims, characterized in that optionally the upper edge of the plastic surface ( 1 ) can be so milled that the overlap ( 9 ), and thus the edges of the light shaft frame are overlapped by about 5 mm, the upper edges of the plastic surface ( 1 ) are slightly rounded, and that the cover by stronger ridges ( 5 ) is slightly raised relative to the light shaft frame.