Patent Application
20100167008
The present invention relates to a section element, in particular a structural section, for example a dry construction section, a facade section or a plastering section, having a section body in particular of metal and at least one sealing element which is fastened to at least a longitudinal side of the section body.
Section elements of this type are used, for example, in dry construction as upright sections, floor sections or wall sections to serve as holders for dry walls or for the plankings of walls. For example, U sections are usually used as floor sections or ceiling sections into which in turn C sections are usually inserted as upright sections to whose limbs the plankings of the dry wall are ultimately fastened.
To achieve a sealing with respect to the floor, the ceiling or the wall for the sections to be fastened to the floor, the ceiling or the wall, it is known to provide the sections with self-adhesive sealing elements such as felt strips at the contact surfaces before installing the sections. These sealing elements effect a compensation of unevenness of the floor, of the ceiling or of the wall so that both an improved soundproofing and an improved thermal insulation is achieved and it is also prevented, for example in the event of a fire, that smoke can penetrate through joints located between the sections and the floor, the ceiling or the wall.
It is disadvantageous in this solution that the sealing elements have to be applied to the section by the fitter at the construction site, whereby an additional processing step is required at the construction site and the work effort is increased.
It is therefore an object of the present invention to provide a section element of the initially named kind which can be manufactured more simply and with less effort and/or cost.
Starting from a section element of the initially named kind, this object is satisfied in accordance with the invention in that the sealing element is made of plastic; in that openings are formed in the longitudinal side of the section body; and in that the sealing element has protrusions for the fastening to the section body at its side facing the section body which are formed in one piece with the sealing element and which project through the openings.
Such sealing elements can already be fastened to the section elements during the manufacture thereof so that section elements already provided with sealing elements can be delivered to the construction site and can be used by the fitter without further process steps. The sealing elements can already be fastened to the section elements during the shaping process carried out for the manufacture of the section elements or subsequently thereto, but still in connection with the manufacture of the section elements so that the section elements are already provided with the sealing elements after leaving the manufacturing facility.
In accordance with the invention, this is in particular achieved in that the sealing element is sprayed, rolled or extruded onto the section body. In this case, the sealing element is thus not yet in the finished condition on the manufacture of the section element, but rather in an intermediate condition which can, for example, be liquid to very viscous. Whereas a prefabricated sealing element such as a felt strip cannot be connected with sufficient precision to the section body or can only be connected with a very high effort and/or cost due to the high process speeds which are present on the manufacture of the section element, which can amount to up to 150 m/min, for example, the application by spraying, rolling or extruding, for example, is also possible very precisely and with a relatively low effort and/or cost at such high speeds and in this connection in particular also in a continuous process. It is furthermore achieved by the application of the sealing element which is not in the solid condition on the manufacture of the section element that the liquid to viscous plastic material of the sealing element passes through the openings formed in the section body, whereby a fastening of the sealing element to the section body is achieved by these protrusions formed in one piece with the sealing element and projecting through the openings.
Depending on the kind of application and the further treatment, the protrusions can at least partly form undercuts with the material of the section body so that an even better fastening is ensured. This can be achieved, for example, in that the plastic is foamed after application to the base body, with the ends of the protrusions projecting through the openings expanding and thereby forming the undercuts.
In accordance with a further advantageous embodiment of the invention, the sealing element is fastened to the section body due to inherent material properties of the plastic in addition to the fastening by means of the protrusions projecting through the openings. Particularly on the application by spraying, rolling or extrusion, the sealing element is in an aggregation state in which an adhesion to the section body is achieved. The fastening of the sealing element to the section body achieved by the protrusions is thus further improved by this adhesion.
In accordance with a further preferred embodiment of the invention, the sealing element is provided at the outer side of the section body. The desired sealing with adjacent objects such as the floor, the wall or the ceiling can thereby be achieved.
The section element can have any desired cross-section, but is preferably formed as a C-section, U-section, Z-section, L-section or T-section. A design with a closed geometry is also possible.
In accordance with a further preferred embodiment of the invention, the section element is designed as a U-section or as a C-section with two limbs and a base portion disposed therebetween, with the sealing element being provided at the base portion and/or at least one of the limbs. If the section element is formed, for example, as a U-section, in which the sealing element is fastened to the outer side of the base portion, a very good sealing toward the floor or the ceiling is achieved on the use of the section element as a floor section or as a ceiling section. On the use as a C-shaped upright section, in contrast, the two limbs can, for example, each be provided with sealing elements at their outer side so that the sealing elements act as soundproofing between the upright section and the plates to be fastened to the section elements. It is advantageous if the sealing element has soundproofing and/or thermal insulating properties.
The sealing element is preferably designed as flexible or sealing to easily compensate corresponding unevenness at adjacent objects, for example.
In accordance with a further advantageous embodiment of the invention, the sealing element increases its volume on the exceeding of a preset temperature in that it foams, for example. It is, for example, achieved by the selection of a material reacting accordingly to high temperatures that, in the event of fire, the sealing element completely fills up any possibly still present joints so that a spread of smoke past the section element is reliably prevented.
The sealing element preferably extends substantially over the total length of the section body. A sealing over the total section length is thereby achieved. It is also possible in dependence on the application that the sealing element extends only over part regions of the section body. The sealing element can, for example, be formed as a sealing cord and thus in particular have an approximately circular or oval cross-section.
In accordance with a further preferred embodiment of the invention, the sealing element substantially extends over the total width of the longitudinal side of the section body. A particularly good sealing is thereby achieved. It is, however, also possible that the sealing element only extends over a part of the width of the longitudinal side of the section body. In this case, a plurality of sealing elements, in particular extending substantially parallel to one another, can advantageously be fastened to the section body. In this manner, sealing material is saved and any special shapes of the section body which may be present, for example grooves or other recesses or elevated portions, can be taken into account.
In accordance with an advantageous embodiment of the invention, the sealing element is made of a foamed plastic. The material of the sealing element can be brought into its final aggregate state by the foaming, with a volume increase, which is desired, for example, being able to take place simultaneously.
The sealing element preferably comprises a soft plastic, PVC, in particular soft PVC. Any existing unevenness of the adjacent objects can be easily compensated by the design as a soft plastic so that the desired sealing properties can be achieved. The use of PVC is advantageous, for example, since PVC has a high temperature resistance, on the one hand, and only a small water absorption ability, on the other hand, and can be both sprayed on and extruded on easily. The resistance to temperature, water and UV is important in this respect since the section elements formed In accordance with the invention are frequently stored outdoors.
In accordance with a further advantageous embodiment of the invention, the sealing element has a thickness of approximately. 0.1 mm to 10 mm, preferably from approximately 3 mm to 5 mm. It is ensured by a corresponding thickness of the sealing element that larger unevenness in the surface of the objects to which the selection is fastened is also reliably compensated.
Further preferred embodiments of the invention are set forth in the dependent claims.
The invention will be described in more detail in the following with reference to an embodiment and to the drawing; there are shown in this:
A C-section 5 standing perpendicular is inserted between the limbs 2, 3 and forms the base construction for an upright wall in dry construction together with the U-section 1 and further C-sections, not shown.
The C-section 5 includes a section body 18 with two limbs 6, 7 which are connected to one another by a base portion 8 disposed therebetween. The two free longitudinal sides of the limbs 6, 7 are inwardly turned over in a known manner so that the C-shaped cross-section of the C-section 5 results.
Respective elongated sealing elements 9, 10 are fastened to the outsides of the limbs 6, 7 and extend as sealing strips over the total length and over the large part of the width of the limbs 6, 7. An elongated sealing element 11 is fastened in a similar manner to the outside of the base portion 4 of the U-section 1 and extends over the total length of the U-section 1 and substantially over its width.
A sealing is provided by the sealing element 11 between the U-section 1 and the floor on which the U-section lies.
At their sides facing the C-section 5 or the U-section 1, the sealing elements 9, 10, 11 have protrusions 12 which are in each case formed in one piece with the sealing element 9, 10, 11 and which project through openings (13) formed in the limbs 6, 7 and in the base portion 4 (see
In addition to this fastening, the sealing elements 9, 10, 11 are in adhesive connection with the outsides of the limbs 6, 7 or of the base portion 4 since the sealing elements 9, 10, 11 were applied, in particular sprayed, rolled or extruded, in a liquid or viscous condition onto the surface of the limbs 6, 7 or of the base portion 4 during the manufacture of the sections 1, 5 so that an adhesive connection was produced between the sealing elements 9, 10, 11 and the section bodies 17, 18. Subsequently to this, the sealing elements 9, 10, 11 were dried or hardened or foamed, which can take place by heating in a drying oven, for example.
Due to the liquid or viscous consistency of the material of the sealing elements 9, 10, 11 on the application onto the section bodies 17, 18, some of the material passes through the openings 13 on the manufacture of the sections, whereby the inwardly projecting protrusions 12 are formed. On the hardening or foaming, the material of the sealing elements 9, 10, 11 expands so that the layer provided at the outside of the section bodies 17, 18 is given the desired thickness and, on the other hand, the inwardly projecting protrusions 12 form undercuts with the section bodies 17, 18, as can in particular be recognized from
A plate 14 is furthermore shown in
Different cross-sections of U-shaped or C-shaped section elements are shown in
In the C-section 5 shown in
The plan view of the base portion 4 of the U-section 1 with different arrangements of openings 13 is shown by way of example in
Two sealing elements 27 which are formed as sealing cords 26 and which form a seal with respect to a wall portion 28 are provided at the rear side of the base portion 21. The fastening of the base section 19 to the wall portion 28 can in this respect take place in a known manner, for example by cementing or also by a screw connection or by an adhesive bond. The sealing elements 27 can extend substantially parallel to the longitudinal extent of the base section 19. An extent deviating from this is generally also possible, for example an S-shaped extent or a zigzag extent. The fastening of the sealing elements 27 in this respect takes place in accordance with the method described with respect to
The invention is not limited to dry construction sections, but can rather be used everywhere section elements with sealing elements are used. The use as a structural section, for example as a dry construction section or as a plastering section or facade section, e.g. in the form of corner sections, base sections, connection sections, terminal sections, joint sections or venting sections, is, however, preferred. The section body can furthermore be manufactured from metal, from plastic or from any other suitable material.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2007 032 770.8 | Jul 2007 | DE | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/EP2008/005609 | 7/9/2008 | WO | 00 | 1/29/2010 |
