EP2540931B1 - Extension element for a light shaft - Google Patents

Description

The invention relates to a Lichtschachtaufstockelement according to claim 1 and a method for variable topping up a light shaft by means of a Lichtschachtaufstockelements according to claim 11.

A plurality of Lichtschachtaufstockelementen to increase a light well is known. A disadvantage of previously known Lichtschachtaufstockelementen that the Lichtschachtaufstockelement must be attached to the basement wall consuming on site. This type of attachment of Lichtschachtaufstockelements does not produce desired thermal bridges. In addition, known Lichtschachtaufstockelemente are quite heavy.

A device of the type mentioned here is also from the DE 69 15 236 U , the DE 103 36 401 A1 and the DE 203 06 062 U1 known.

DE 69 15 236 U describes a manhole prefabricated plastic hollow profile with a connecting strap, wherein on the two inner sides of the profile wall a dovetail-shaped rib in the whole height D is mounted and provided from the outside with a release mark notch.

DE 103 36 401 A1 concerns a connection part between a light well and a light well attachment as well as a light well attachment itself, having means facilitating and / or facilitating connection to the connection part.

DE 203 06 062 U1 refers to a height-adjustable light well as Blechkanntung and / or welded and galvanized.

The invention is based on the object to show a Lichtschachtaufstockelement that can be easily installed technically.

This object is achieved by a Lichtschachtaufstockelement according to claim 1 and a method for variable topping up a light shaft by means of a Lichtschachtaufstockelements according to claim 11.

In particular, the object is achieved by a Lichtschachtaufstockelement for replenishing a light shaft, the Lichtschachtaufstockelement essentially has a hollow profile, and the Lichtschachtaufstockelement is fastened exclusively to the light shaft, with a circulating on the inside of Lichtschachtaufstockelementes support projection for supporting a grid cover for an upper shaft opening of the light shaft is provided, wherein the Lichtschachtaufstockelement has a substantially T-shaped cross section.

An essential point of the invention is that the Lichtschachtaufstockelement has a hollow profile, and that the Lichtschachtaufstockelement is attached or fastened only on the light shaft and thus not on the basement wall.

One advantage of this is that the mounting or attachment of the Lichtschachtaufstockelements is technically simple or greatly simplified. In addition, there are no (undesired) thermal bridges between the Lichtschachtaufstockelement and the basement wall, since there is no direct connection between them. In addition, the Lichtschachtaufstockelement can already be factory attached to the light shaft. Another advantage is that the Lichtschachtaufstockelement is lightweight because it has a hollow profile. As a result, the light shaft must be made less stable. It has been shown that the hollow profiles can advantageously be connected very easily by means of welding, plugging or screwing over corner.

A lower edge of the Lichtschachtaufstockelements may be tapered towards the light well. As a result, the Aufstockhöhe after installation the Lichtschachtaufstockelements be changed. The pointed lower edge makes it possible to push the Lichtschachtaufstockelement in the (earth) floor and thereby reduce the Aufstockhöhe, even after the Lichtschachtaufstockelement has already been installed.

The light well header includes a support projection for supporting a mesh cover for an upper well opening of the light well. An advantage of this is that a grid cover can be arranged technically simple and secure. The grid cover can thereby also be arranged such that the grid cover has no contact with the basement wall. This also creates no thermal bridges between the grid cover and the basement wall.

In a further embodiment, the Lichtschachtaufstockelement with the light shaft can be screwed, in particular releasably screwed. As a result, the technical complexity for fixing the Lichtschachtaufstockelements decreases at the light shaft. In addition, the assembly time is reduced. By a detachable screw the Aufstockhöhe can also be changed after installation or attachment of Lichtschachtaufstockelements.

In a further embodiment, the Lichtschachtaufstockelement is independent of a Aufstockhöhe, around which the Lichtschachtaufstockelement in use over an upper edge of the light shaft, at the same location of the light shaft fastened. This makes it possible to adjust the Aufstockhöhe the Lichtschachtaufstockelements continuously. In addition, the technical effort for the attachment decreases.

The Lichtschachtaufstockelement may substantially completely enclose an upper edge of the light shaft. An advantage of this is that the stability of the light well is increased.

In a further embodiment, the Lichtschachtaufstockelement is formed such that the light shaft can be increased by about 3 cm to about 32 cm above the upper edge of the light shaft through the Lichtschachtaufstockelement infinitely. One advantage of this is that only a single Lichtschachtaufstockelement is required for different Aufstockhöhen, from a very small Aufstockhöhe to a relatively large Aufgeschosshöhe. This will be a significant cost saved. In addition, the raised height can be adapted very precisely to the local conditions.

The hollow profile of the Lichtschachtaufstockelements, in particular the hollow profile of the support projection of Lichtschachtaufstockelements, may be formed for receiving at least one stiffening element for stiffening the Lichtschachtaufstockelements. An advantage of this is that the previously known metal stiffening frame for the light shaft are no longer needed. As a result, the weight of the Lichtschachtaufstockelements further decreases. By the possible inclusion of one or more stiffening elements, the rigidity of the Lichtschachtaufstockelements can be variably adjusted taking into account the weight.

The Lichtschachtaufstockelement may further comprise at least one stiffening element for stiffening the Lichtschachtaufstockelements, wherein the stiffening element in the hollow profile, in particular in the hollow profile of the support projection, is arranged. Due to the stiffening element, the stability and rigidity of the Lichtschachtaufstockelements is substantially increased. By the factory arrangement of one or more stiffening elements, the installation is facilitated or accelerated on site.

The Lichtschachtaufstockelement may be colored or colored in whole or in part. Thus, it is possible that the visible after installation edges of Lichtschachtaufstockelementes to the environment, for. Plates or tiles, colored. In particular, e.g. during the manufacturing process of the light well tailing element in a coextrusion process, a colored edge e.g. be attached to the element in the area of the later grid cover.

In a further embodiment, the Lichtschachtaufstockelement is formed such that the upper end of the Lichtschachtaufstockelementes in use by means of the Aufstocklage can be very accurately adapted to the circumstances of the installation site, in particular to crooked earth surfaces, in use. Without further modifications, small entanglements of the main axes of the light shaft extension element with respect to the main axes of the light shaft are possible. By simple modifications to be made (eg sawing), for example, on the wall-side edge of the Lichtschachtaufstockelements large Entanglement can be achieved and thus the Aufstockelement can adapt to the circumstances, such as a strong land waste.

The Lichtschachtaufstockelement can be used to replenish a fixed Lichtschachtaufstockelements that replaces a light well. Thus, it is also conceivable to combine the variable Lichtschachtaufstockelement with a fixed and non-variable Lichtschachtaufstockelement and to connect the fixed Lichtschachtaufstockelement on its underside with the light well and on its upper side with the variable light well element. Fixed light shaft extension elements are light shaft extension elements which have a predetermined and unchangeable height. To compensate for height differences, then e.g. one or more fixed Lichtschachtaufstockelemente be combined with a variable Lichtschachtaufstockelement.

The object is also achieved by a method for variably increasing a light shaft by means of a Lichtschachtaufstockelements with hollow profile, comprising the following steps: arranging the Lichtschachtaufstockelements on the light shaft such that the Lichtschachtaufstockelement protrudes a first Aufgeschosshöhe over an upper edge of the light shaft, the Lichtschachtaufstockelement a on the inner side of the Lichtschachtaufstockelementes circumferential support projection for supporting a grid cover for an upper shaft opening of the light shaft, wherein the Lichtschachtaufstockelement has a substantially T-shaped cross section, and attaching the Lichtschachtaufstockelements exclusively on the light shaft. An advantage of this is that the mounting of the Lichtschachtaufstockelements is greatly simplified. In addition, there are no (undesired) thermal bridges between the Lichtschachtaufstockelement and the basement wall, since there is no direct connection between them. In addition, the Lichtschachtaufstockelement can already be factory attached to the light shaft. Another advantage is that in this method, the light well must be less stable, since the Lichtschachtaufstockelement is lightweight because it has a hollow profile.

The Lichtschachtaufstockelement can be attached to the light shaft by screwing, in particular exclusively by screwing. As a result, the technical complexity for fixing the Lichtschachtaufstockelements decreases at the light shaft. In addition, the assembly time is reduced.

The method may further comprise the following steps: introducing at least one stiffening element into the hollow profile of the light shaft extension element, in particular into the hollow profile of a support projection for supporting a grate cover for an upper shaft opening of the light shaft, for stiffening the light shaft extension element. An advantage of this is that in this method, the previously known metal stiffening frame for the light shaft are no longer needed. By picking up one or more stiffening elements, the rigidity of the Lichtschachtaufstockelements can be variably adjusted taking into account the weight.

In a further embodiment, the method furthermore comprises the following steps after fastening the light shaft: releasing the fastening between the light shaft extension element and the light shaft, steplessly moving the light shaft extension element such that the light shaft extension element projects beyond the upper edge of the light shaft over a second extension height, wherein the second extension height of the first Aufgeschosshöhe differs, and re-attaching the Lichtschachtaufstockelements on the second Aufgeschosshöhe exclusively on the light shaft. As a result, after the installation or the fastening of the light shaft extension element, the extension height of the light shaft extension element can be changed continuously. Another advantage of this is that only a single Lichtschachtaufstockelement is required for different Aufstockhöhen. This saves considerable costs.

Fig. 1

eine schematische Seiten-/Querschnittsansicht einer Ausführungsform des erfindungsgemäßen Lichtschachtaufstockelements;

Fig. 2

eine vergrößerte Ansicht des Bereichs II des Lichtschachtaufstockelements aus Fig. 1; und

Fig. 3

eine Aufsicht auf das erfindungsgemäße Lichtschachtaufstockelement aus Fig. 1 bzw. Fig. 2.

Preferred embodiments will be apparent from the dependent claims. The invention will be explained in more detail with reference to drawings of exemplary embodiments. Show here

Fig. 1

a schematic side / cross-sectional view of an embodiment of Lichtschachtaufstockelements invention;

Fig. 2

an enlarged view of the area II of Lichtschachtaufstockelements Fig. 1 ; and

Fig. 3

a view of the Lichtschachtaufstockelement from Fig. 1 or. Fig. 2 ,

In the following description, the same reference numerals are used for the same and the same parts acting.

Fig. 1 shows a schematic side / cross-sectional view of an embodiment of Lichtschachtaufstockelements invention 1. The Lichtschachtaufstockelement 1 serves to increase a light shaft 30. Aufstock means in the context of this invention that the light shaft 30 is extended in height.

The light shaft 30 serves to let light to a basement window 45 in a building wall 40. The light shaft 30 is attached to the building wall 40.

The increase of the light shaft 30 is particularly necessary if the upper edge 32 of the light shaft 30 is below the (planned) earth surface. It must be prevented that soil or other Erdflächenbegrenzungen get into the light shaft 30. The light shaft extension element 1 according to the invention serves for this purpose. The light shaft extension element 1 lengthens the light shaft 30 in the height or stalls it.

The Lichtschachtaufstockelement 1 has a tapered lower edge 4. By means of this tapered edge 4, it is possible to press the Lichtschachtaufstockelement 1 deeper into the earth even after installation of Lichtschachtaufstockelements 1. As a result, the Aufstockhöhe is reduced. The tapered edge 4 displaces the earth to the side.

The raised floor is in Fig. 1 and in Fig. 2 indicated by the h symbol. The mounting height h is the distance between the upper end of the Lichtschachtaufstockelements 1 and the upper edge 32 of the light shaft 30th

The Lichtschachtaufstockelement 1 is fixed by means of a screw 20 or more screws at the upper edge 33 of the light shaft 30. This compound is preferably releasable again.

The Lichtschachtaufstockelement 1 is exclusively attached to the light shaft 30 or fastened. As a result, (unwanted) thermal bridges between the Lichtschachtaufstockelement 1 and the basement wall 40 are avoided. In addition, the Lichtschachtaufstockelement 1 can be easily fixed technically. Furthermore the Lichtschachtaufstockelement 1 can already be factory attached to the light shaft 30. This saves time for on-site attachment.

The Lichtschachtaufstockelement 1 is fixed by the Lichtschachtaufstockelement 1 is arranged such that the Lichtschachtaufstockelement 1 the desired Aufstockhöhe over the upper edge 32 of the light shaft 30 protrudes. Thereafter, the Lichtschachtaufstockelement 1 is attached exclusively to the light shaft 30. This is preferably done by means of the screw 20. Other types of attachment, in particular by means of adhesives, etc., are conceivable.

The Lichtschachtaufstockelement 1 preferably has no special fastening devices. However, it is also conceivable that the Lichtschachtaufstockelement 1 has special fastening devices.

The screw 20 is simply screwed from the direction of the upper edge 33 of the light shaft 30 in the Lichtschachtaufstockelement 1. It is possible to loosen the attachment or the screw 20 again to change the Aufstockhöhe. For this purpose, after loosening the screw 20, the Lichtschachtaufstockelement 1 either pulled out of the ground to increase the Aufstockhöhe, or pressed into the ground to reduce the Aufstockhöhe. Thereafter, the screw 20 is screwed back to the same position of the light shaft 30, namely at the upper edge 33 of the light shaft with the Lichtschachtaufstockelement 1. The location of the Lichtschachtaufstockelement 1, at which the Lichtschachtaufstockelement 1 is connected to the light shaft 30, this has of course changed.

Because the light shaft extension element 1 has no special fastening means, the light shaft extension element 1 can be connected or screwed to the light shaft 30 at any point of the light shaft extension element 1. The fastening point on the light shaft 30, on which the light shaft extension element 1 is screwed to the light shaft 30, is independent of the extension height of the light shaft extension element 1.

The Lichtschachtaufstockelement 1 allows a stepless height adjustment, ie a continuous Aufstockhöhe of about 3 cm to about 32 cm.

The manner of mounting also allows the light well accumulator 1 to be used in situ or at the factory in depth, i. can be shortened below, provided, for example, the base, the insulation or clinker in the region of Lichtschachtaufstockelements 1 projects or projects.

The Lichtschachtaufstockelement 1 also has a support projection 15. The support projection 15 is circumferential. On the support projection 15, a grid cover 50 is stored. The grating cover 50 covers the upper shaft opening 35 of the light shaft 30 and prevents coarse dirt or the like from entering the light shaft 30.

The Lichtschachtaufstockelement 1 encloses an upper edge 32 and the upper edge 33 of the light shaft 30 substantially completely. The light shaft 30 or the upper edge 33 of the light shaft 30 has a rectangular shape as a rule, wherein one side of the rectangular light shaft 30 is open, which faces the building wall 40 in use. The Lichtschachtaufstockelement 1 accordingly also has a rectangular shape, which is open to one side, namely in use to the building wall 40, so that the upper edge 32 and the upper edge 33 of the light shaft 30 is completely enclosed. This increases the stability of the light shaft.

In addition, the grid cover 50 is supported on three sides. In addition, it is achieved that the grid cover 50 can be supported or stored without the grid cover 50 is in direct contact with the basement wall 40. As a result, thermal bridges between the grid cover 50 and the basement wall 40 are prevented.

Fig. 2 shows an enlarged view of the area II of the Lichtschachtaufstockelements Fig. 1 , The Lichtschachtaufstockelement 1 has a hollow profile or hollow chamber profile. This means that the Lichtschachtaufstockelement 1 has very many and quite large cavities 6. A large part of the inner volume of Lichtschachtaufstockelements 1 is thus hollow or empty. The cavities 6 preferably have in cross section a rectangular shape with rounded corners and are evenly distributed. At each level below the support projection 15 of Lichtschachtaufstockelement 1 exactly one cavity is arranged. However, it is also conceivable that a plurality of cavities are arranged at a height next to each other.

In Fig. 2 It can clearly be seen that the screw 20 extends through the upper edge 33 of the light shaft 30, penetrates through a first (inner) outer wall of Lichtschachtaufstockelements 1 in Lichtschachtaufstockelement 1, passes through a cavity 6 of Lichtschachtaufstockelements 1 and then in the first outer wall opposite (outer) wall of the Lichtschachtaufstockelements 1 ends. It is also conceivable that the screw 20 two cavities 6 of Lichtschachtaufstockelements 1 tangent or none of the cavities 6 tangent.

The Lichtschachtaufstockelement 1 has in its support projection 15 a receptacle 7, i. a particularly large cavity, for a stiffening element 8. The stiffening element 8 may in particular be a so-called flat iron. In this way, the Lichtschachtaufstockelement 1, in particular the support projection 15, amplified. The stiffening element 8 or flat iron may consist of a metal or a metal alloy. Other materials, such as Plastics are conceivable.

The stiffening element 8 can already be arranged at the factory in the light shaft extension element 1 or can be used on site depending on the desired strength, taking into account the resulting weight of Lichtschachtaufstockelements 1 in the Lichtschachtaufstockelement 1 or not.

The flat iron or stiffening element 8 has a length which substantially corresponds to the length of an edge of the light shaft extension element 1. It is also conceivable that other parts of the Lichtschachtaufstockelements have receptacles for stiffening elements 8.

The Lichtschachtaufstockelement 1 is prepared by extrusion and can be cut exactly to the required size and / or assembled from several parts or welded together. Thus, only one tool is needed for different Lichtschachtaufstockelementgrößen or Aufstockhöhen, which means a significant cost savings.

Fig. 3 shows a plan view of an embodiment of the Lichtschachtaufstockelements invention 1. The Lichtschachtaufstockelement 1 has the shape a rectangle, which is open to one side, namely in use to the basement wall 40 out.

The Lichtschachtaufstockelement 1 encloses the upper edge 32 and the upper edge 33 of the light shaft 30. As a result, the rigidity of the light shaft 30 is increased. The support projection 15 extends all around on the inside of the Lichtschachtaufstockelements 1. The grid cover 50 thus rests on three sides on the support projection 15 of Lichtschachtaufstockelements 1. Between the grid cover 50 and the building wall 40 is a gap 55. A small part of the light shaft 30, namely the part which is attached to the building wall 40 is in Fig. 3 also visible.

The Lichtschachtaufstockelement 1 is preferably made of PVC. Other materials, in particular other plastics are conceivable.

The Lichtschachtaufstockelement 1 has a length, in use from top to bottom extending, of about 340 mm. The lower edge of the support projection 15 has a distance of about 309.5 mm to the lower edge of the Lichtschachtaufstockelement 1. The width of the Lichtschachtaufstockelement 1 is in the region below the support projection 15 is about 10 mm and above the support projection 15 is about 17.5 mm. The area of the Lichtschachtaufstockelement 1 above the support projection 15 has a height of about 19 mm.

The support projection 15 has a height of about 12 mm. The support projection 15 protrudes approximately 32.5 mm in relation to the region of the light shaft extension element 1 below the support projection 15.

The cavities 6 have a height of about 9 mm. The thickness of the material between the cavities 6, i. The ribs within the Lichtschachtaufstockelement 1, is about 1 mm. The (outer) walls of Lichtschachtaufstockelement 1 have a thickness of about 2 mm. The flat iron or stiffening element 8 has a thickness of about 4 mm and a width of about 30 mm.

Other dimensions are conceivable.

LIST OF REFERENCE NUMBERS

1

Light well extension collar

4

lower edge of the Lichtschachtaufstockelements

6

Cavities of Lichtschachtaufstockelements

7

Support for stiffening element

8th

Stiffening element (flat iron)

15

bearing protrusion

20

Fastening (screw)

30

light well

32

upper edge of the light shaft

33

upper edge of the light shaft

35

Upper shaft opening of the light shaft

40

building wall

45

basement windows

50

grid cover

55

Gap between grid cover and building wall

Claims (14)

1. A light shaft extension element (1) for extending the top of a light shaft (30), wherein
   the light shaft extension element (1) substantially comprises a hollow profile, and
   the light shaft extension element (1) may be fastened exclusively to the light shaft (30), the light shaft extension element furthermore comprising:
   a circumferential support protrusion (15) at the inner side of the light shaft extension element for supporting a grated cover for an upper shaft opening of the light shaft, characterized in that the light shaft extension element (1) has a substantially T-shaped cross-section.
2. The light shaft extension element (1) according to claim 1, wherein
   a lower edge (4) of the light shaft extension element (1) is tapered toward the light shaft (30).
3. The light shaft extension element (1) according to any one of the preceding claims, wherein
   the light shaft extension element (1) and the light shaft (30) may be screwed together, in particular screwed together releasably.
4. The light shaft extension element (1) according to any one of the preceding claims, wherein
   the light shaft extension element (1) may be fastened in the same place on the light shaft (30) irrespective of an extension height by which the light shaft extension element (1) protrudes beyond an upper edge (32) of the light shaft (30) during use.
5. The light shaft extension element (1) according to any one of the preceding claims, wherein the light shaft extension element (1) is able to enclose an upper edge (32) of the light shaft (30) substantially completely.
6. The light shaft extension element (1) according to any one of the preceding claims, wherein the light shaft extension element (1) is configured such that the light shaft (30) may be extended by the light shaft extension element (1) by about 3 cm up to about 32 cm beyond the upper edge (32) of the light shaft (30) in a stepless manner.
7. The light shaft extension element (1) according to any one of the preceding claims, wherein
   the hollow profile of the light shaft extension element (1), in particular the hollow profile of the support protrusion (15) of the light shaft extension element (1) is configured to receive at least one reinforcing element (8) for reinforcing the light shaft extension element (1).
8. The light shaft extension element (1) according to any one of the preceding claims, in particular according to claim 7, furthermore comprising at least one reinforcing element (8) for reinforcing the light shaft extension element (1), wherein the reinforcing element (8) is arranged in the hollow profile, in particular in the hollow profile of the support protrusion (15).
9. The light shaft extension element (1) according to any one of the preceding claims, wherein
   the light shaft extension element (1) is configured such that the end of the light shaft extension element (1), which is the upper end during use, can be adapted by means of the extension layer by different extension heights of a single light shaft extension element to the conditions of the installation site, in particular to skewed ground surfaces.
10. The light shaft extension element (1) according to any one of the preceding claims, wherein
    the light shaft extension element (1) is configured to extend a light shaft extension element (1) having a predefined and not changeable height, which extends the top of a light shaft.
11. A method for variably extending the top of a light shaft (30) bay means of a light shaft extension element (1) having a hollow profile, comprising the following steps of:

    arranging the light shaft extension element (1) at the light shaft (30) such that the light shaft extension element (1) protrudes by a first extension height beyond the upper edge (32) of the light shaft (30), wherein the light shaft extension element (1) comprises a circumferential support protrusion (15) at the inner side of the light shaft extension element for supporting a grated cover for an upper shaft opening of the light shaft, wherein the light shaft extension element (1) has a substantially T-shaped cross-section; and

    fastening the light shaft extension element (1) exclusively to the light shaft (30).
12. The method according to claim 11, wherein
    the light shaft extension element (1) is fastened to the light shaft (30) by screwing, in particular exclusively by screwing.
13. The method according to claim 11 or 12, furthermore comprising the following step of:
    introducing at least one reinforcing element (8) into the hollow profile of the light shaft extension element (1), in particular into the hollow profile of a support protrusion (15) for supporting a grated cover (50) for an upper shaft opening (35) of the light shaft (30), for reinforcing the light shaft extension element (1).
14. The method according to any one of claims 11 to 13, furthermore, after the fastening of the light shaft (30), comprising the following steps of:

    releasing the fastening (20) between the light shaft extension element (1) and the light shaft (30),

    displacing the light shaft extension element (1) in a stepless manner such that the light shaft extension element (1) protrudes beyond the upper edge (32) of the light shaft (30) by a second extension height, wherein the second extension height is different from the first extension height, and

    fastening the light shaft extension element (1) again in the second extension height exclusively to the light shaft (30).

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