DE1245088B - Method of forming joints between cladding panels - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

E04f

German AI .: 37 d-19/02

Number: 1245 088

File number: O 7113 V / 37 d

Filing date: November 26, 1959

Opened on: July 20, 1967

The invention relates to a method for forming joints between rectangular wall or Ceiling cladding panels made of insulating material. The procedure can be quick and using made of cheap material and still meet all technical requirements that are to be provided when forming joints.

The difficulties that arise in the proper formation of joints have long been known, ir> and there are numerous prior art solutions.

The simplest solution is the butt joint, in which panels are joined with their flat butt surfaces will. Due to the changing influences of temperature and humidity and due to aging however, the dimensions of the plates or the supporting structure change and thus also the joints that open irregularly.

A better solution is a joint design in which the edges on the visible surface of the joint are broken and the resulting V-shaped channel is filled with a putty-like material. However, if the dimensions of the panels or the supporting structure change, this filling material is either squeezed out, or cracks appear, especially if the panels are painted with paint are, so that this solution is not satisfactory either.

Another possibility was seen in the use of a tongue and groove connection. This connection will also help when the panels shrink, especially when the panels are stained with paint are deleted, cohesion is still guaranteed, but here too the breadth of the changes Joints and fasteners for the panels, such as nails or staples, cannot always be covered will.

Furthermore, it is known to bevel both abutting surfaces of adjoining plates and to provide grooves in the inclined surfaces, into which a cover strip serving as a tongue was then inserted. Wooden or metal strips were used for such cover strips, and the assembly was carried out in such a way that first one plate was nailed on, then the cover strip was inserted and finally the following plate was attached. However, the following board could no longer be nailed in this joint because the cover strip had to be inserted beforehand. Subsequent insertion is not possible. The cover strips therefore had to be relatively rigid, especially when cladding a ceiling, since they hold the subsequent panel at the joint between processes for forming joints
Cladding panels

Applicant:

Sammon RuIIa Oy (company on shares),
Kuopio (Finland)

Representative:

Dr. F. Zumstein, Dr. E. Assmann

and Dr. R. Koenigsberger, patent attorneys,

Munich 2, Bräuhausstr. 4th

Named as inventor:

Enzio Nuorivaara, Kuopio (Finland)

Claimed priority:

Finland, March 19, 1959 (499)

had to because this board was only nailed to the next joint before the next cover strip was inserted could be.

The object of the invention is to avoid these disadvantages in the known joint designs and to create a method for forming joints that still makes it possible to first put the insulation panels to be attached to the underlay to be covered at all edges and the joints only afterwards cover so that no fasteners are visible.

According to the invention, the object is achieved in that U-shaped on the abutting surfaces of the plates Grooves worked out and the edge strips covering these grooves on the visible surface up to about half the depth of the groove and after attaching the plates to the base a thin one Flexible joint tape made of paper or plastic pulled into the grooves of two adjoining panels will.

This gives the advantage that the panels on all edges with nails or staples on the Base, e.g. a shoring, can be attached, in which case all fastening elements are through the joint tape is covered and a pleasing joint is formed. The fugue also has a certain Width, so that small changes in the joint width are not noticeable in a disruptive manner. The change

709 617/216

Claims (2)

The dimensions are also smaller than with the known tongue and groove connections, because the panels can be nailed to the wall on both sides of the joint or to one and the same beam. Instead of the changes in length, tensions then occur in the panel, which can be absorbed by the insulation panels. If the panels are painted with paint, the waterstops are pulled out of the grooves beforehand and put back in place after painting. With the joint formation provided according to the invention, it is also possible to work very quickly, and the costs for the joint tape, which consists of paper or a plastic, are low. Since the waterstops are drawn in, you can avoid kinks or breaks that would affect the appearance of the joint. The thin joint tape is not suitable for insertion. It is already known to cover the fastening means with inserted filler strips in a similar joint design of a masonry simulation, but there are pieces that simulate mortar joints and must be inserted gradually while the individual elements are being attached. It is also known to cover the fastening means of a retaining strip for a base cladding with an inserted thicker strip. Finally, it is known to work out U-shaped grooves from plates and to remove the edge strips covering these grooves on the visible surface to about half the groove depth, but only in connection with one of the aforementioned tongue and groove connections. The use of a thin and flexible joint tape in the claimed manner is unusual, since only stable strips have been used so far. The very expression spring suggests that up to now people have only thought of materials that are supposed to ensure a durable connection between plates. In addition, since up to now, as explained above, the panels to be newly joined could not be nailed on in a concealed manner at the joint, a certain strength of the strips was inevitably required. The expert was previously unfamiliar with the idea of using a joint tape that cannot transmit any forces. An embodiment of the invention is explained below with reference to the drawing. A b b. 1 shows how the waterstops 7 are drawn into the joints between the insulation panels 2, which were previously attached to a base with nails 3. Fig. 2 shows the design of the grooves 5, which are carved out of the abutting surfaces of the insulation panels 2. The one from above, d. H. from the visible surface of the plate, the grooves 5 covering edge strip is also partially removed, so that the edge surface 4 is set back from the joint. The plates 2 are fastened to a wooden slat 1 with nails 3. The groove 5 is shown relatively wide for reasons of drawing. In practice it can of course be very narrow, since it only has to accommodate the thin joint tape 7. The edge strip 6 of the plate intended for nailing can therefore still be made so thick that it is sufficiently strong. Patent claims: 1. Method of forming joints between rectangular wall or ceiling cladding panels made of insulating material, characterized in that U-shaped grooves are machined on the abutting surfaces of the plates and the edge strips covering these grooves on the visible surface up to about half Depth of the groove and after attaching the plates to the base a thin, Flexible joint tape (7) made of paper or plastic in the grooves of two butting joints Plates are drawn in. 2. The method according to claim 1, characterized in that the joint tape at the free end tapered to make it easier to pull in. Considered publications:
German Patent No. 565,516;
U.S. Patents Nos. 1940 968, 2114 044,
2,849,759. 1 sheet of drawings 709 617/216 7.67 © Bundesdruckerei Berlin