DE290053C

DE290053C -

Info

Publication number: DE290053C
Application number: DENDAT290053D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die sogenannten I I - Platten für Abdichtungszwecke werden bekanntlich in der Regel aus mehreren dünnen Schichten hergestellt, die unter Zuhilfenahme eines Klebmittels durch Pressen miteinander verbunden werden.The so-called I I panels for sealing purposes are known to be used as a rule made of several thin layers, which with the help of an adhesive through Presses are connected to each other.

Nach einem neuen Vorschlage des Erfinders sollen diese Dichtungsplatten mit beliebig angeordneten Rippungen versehen werden, um das Eindringen des Dichtungsmaterials in die Unregelmäßigkeiten der abzudichtenden Flächen zu erleichtern.According to a new proposal by the inventor, these sealing plates should be arranged in any way Ribs are provided to prevent the sealing material from penetrating into the To facilitate irregularities in the surfaces to be sealed.

Die Erfindung besteht nun darin, daß die einzelnen Schichten vor dem Zusammenfügen mit regel- oder unregelmäßig angeordneten Rippungen versehen werden, die auf der einen Seite als Vertiefungen und auf der anderen Seite als Erhöhungen erscheinen. Danach wird der Klebstoff aufgetragen und die Vereinigung der dünnen Schichten durch Pressen herbeigeführt. The invention now consists in that the individual layers prior to joining be provided with regularly or irregularly arranged ribs on the one Appear as depressions on one side and as elevations on the other side. After that, will the adhesive applied and the union of the thin layers brought about by pressing.

Fügt man glatte Schichten in der bekannten Weise zusammen, um sie -nachträglich mit den Rippungen zu versehen, dann wird bei dem erforderlichen hohen Preßdruck der Klebstoff (meist Gummi) zwischen den Schichten verdrängt, so daß er seitlich am Rande der Platte austritt. Jedenfalls gelingt es auf diese Weise nicht, die wünschenswerte Menge des Klebstoffes zwischen den Schichten der Platten .If you add smooth layers together in the known way, they can be added afterwards to provide the ribs, then the adhesive is at the required high pressure (mostly rubber) displaced between the layers so that it emerges laterally at the edge of the plate. In any case, it succeeds on this Do not know the desirable amount of glue between the layers of the panels.

festzuhalten, so daß keine so vollkommen innige Verbindung der Schichten zu erzielen ist, welche dem nachfolgenden Prägen im genügenden Maße Widerstand bietet und auf eine im Gebrauch dauernd einheitlich bleibende, mit geprägten Rippen versehene Platte hinwirkt. Es kommt hinzu, daß bei der Vereinigung glatter Schichten die Platte eine gewisse Starre annimmt, so daß ihr nur im geringen Grade eine Bieg- und Schmiegsamkeit eigen ist. Das ergibt sich ganz naturgemäß daraus, daß zwischen je zwei Schichten eine vollkommen einheitliche Klebfläche vorhanden ist. Gerade die Bieg- und Schmiegsamkeit der Dichtungsplatten ist aber für viele Verwendungsfälle von großer Bedeutung, weil sich die Platten den oft ungenau bearbeiteten Dichtungsflächen in hohem Grade anpassen müssen.to be held, so that a completely intimate connection of the layers cannot be achieved which offers sufficient resistance to the subsequent embossing and on a plate provided with embossed ribs that remains uniform in use works towards. In addition, when smooth layers are united, the plate has a certain Assumes rigidity, so that it is only in a small degree pliable and flexible. That comes naturally from the fact that there is a completely uniform adhesive surface between every two layers is. However, it is precisely the flexibility and flexibility of the sealing plates that is essential for many applications of great importance because the plates adapt to the often imprecisely machined sealing surfaces to a high degree have to.

Wenn gemäß der Erfindung die einzelnen Schichten vor der Vereinigung geprägt werden, so daß sich die Rippungen beim Zusammenfügen ineinanderschachteln, dann gelingt es selbst bei sehr hohem Preßdruck dem Klebstoff nicht, seitlich zu entweichen. Er wird durch die wie Nut und Feder ineinandergreifenden Rippen und Vertiefungen festgehalten, so daß zwischen den einzelnen Schichten mit Sicherheit die für eine innige Verbindung erforderliche Klebstoffmenge untergebracht werden kann und dadurch eine Dichtungsplatte entsteht, welche auch bei langem Gebrauch widerstandsfähig und einheitlich bleibt. Durch die ineinandergreifenden Rippungen wird die Platte in viel höherem Maße bieg- und schmiegsam, als diese Eigenschaften bei den jetzt bekannten, aus Einzelschichten zusammengefügten IT-Platten vorhanden sind.If, according to the invention, the individual layers are embossed before the union, so that the ribs nest together when they are joined, then it succeeds even with very high pressure, the adhesive does not escape laterally. He is through the like tongue and groove interlocking ribs and indentations held in place so that between the individual layers that is certainly the one required for an intimate connection Amount of adhesive can be accommodated and thereby a sealing plate is created, which remains resistant and uniform even with long use. Through the interlocking ribs make the plate much more flexible and pliable, than these properties in the now well-known IT panels made up of individual layers available.

Auf der Zeichnung ist eine Ausführungs-The drawing shows an execution

Claims

form of the invention in Fig. ι in cross section, and shown in Fig. 2 in a top view, in which the ribs run in wavy lines that are at regular intervals from one another and are arranged to run parallel.

The sealing plate is composed of four layers α ¹ α ² α ³ a ^l . Each individual layer is provided with ribs before it is assembled to form a plate, which appear on one side as projections b and on the other side as depressions c. The ribs of the individual layers are designed so that they can be inserted into the recesses of the previous plate when the layers are joined together to form the plate. The layers are each united by an adhesive layer d , this layer being of uniform thickness over the entire surface of the plate, since even with strong pressure the adhesive is held in place by the indentations or elevations acting like tongue and groove. The result is a structure that has a uniform composition at all points. Finally, it should be pointed out that during the production of the layers, which mainly consist of a mixture of asbestos and rubber, which is carried out in a known manner on rollers similar to that in paper manufacture, foreign bodies such as metal parts and the like often get into the layers. reach. If such layers interspersed with foreign bodies are combined in a smooth state in the usual way, then a defective sealing plate results. The mistakes are made e.g. B. when punching out the sealing rings and the like. Already noticeable by destroying the punching tools, but often, which is much worse, only much later, after the material has already been used for sealing. There is no perfect seal at the points where the foreign bodies are located, because the required elasticity is lacking here.

In contrast, when the ribs are formed in the individual thin layers before joining the same to the sealing plate, the errors immediately noticeable, so that the defective layers can be switched off and only completely homogeneous sealing plates are created.

Patent-A ν claim:

Process for the production of consisting of individual layers glued together Sealing plates, characterized in that the layers before gluing together with regular or irregular arranged, on one side as elevations and on the other side as depressions appearing ribs are provided in such a way that the ribs nest one inside the other when the layers are laid one on top of the other.

1 sheet of drawings.