DE1784467C3

DE1784467C3 - Pre-compressed joint sealing tape, method for its manufacture and transport unit from such tapes

Info

Publication number: DE1784467C3
Application number: DE19681784467
Authority: DE
Inventors: Auf Nichtnennung Antrag
Original assignee: N.V. Asphalt-Bitumen-Onderneming Asbiton, Zwijndrecht (Niederlande)
Priority date: 1967-08-17
Filing date: 1968-08-10
Publication date: 1976-05-20

Description

beispielsweise kann seine Länge mehrere Meter, seine Breite / einige Zentimeter und seine Dicke e in zusammengedrückiem Zustand einige Millimeter betragen. for example, its length can be several meters, its width / a few centimeters and its thickness e in the compressed state a few millimeters.

Nach F i g. 2 wird von einer Rolle 5 eine als Zwischenlage vorgesehene Trennbahn ti abgezogen und über einen Tisch 4 geleitet, urd eine Bahn 1 α aus nicht zusammengedrücktem, aber imprägniertem Schaumstoff von einer Dicke e_a über die Trennbahn 6 geleitet. Die Breite der Schaumstof^bahn Ια ίο ist etwas größer als η ■ I, wobei / die gewünschte Breite /ür das Band 1 (Fig. 1) und η eine ganze Zahl, bei dem dargestellten Ausführungsbeispiel, ist.According to FIG. 2, a separating web ti provided as an intermediate layer is peeled off from a roll 5 and passed over a table 4, urd a web 1 α of uncompressed but impregnated foam with a thickness e _{a passed} over the separating web 6. The width of the foam web Ια ίο is slightly larger than η ■ I, where / is the desired width / for the band 1 (FIG. 1) and η is an integer in the illustrated embodiment.

Die Schaumsioffbahn 1 α wird fortschreitend mit Hilfe von Walzen 7 derart zusammengedrückt, daß schließlich eine vorkomprimierte Bahn von einer Dicket' (Fig. 1) und unveränderter Breite/ erhalten wird. Die Bahn kann z. B. um 80'«, also bis auf ein Fünftel, zusammengedrückt werden.The foam web 1 α is progressively compressed with the aid of rollers 7 in such a way that finally a pre-compressed web of a thickness (FIG. 1) and an unchanged width / is obtained. The web can z. B. can be compressed by 80 '", that is, down to a fifth.

Die zusammengedrückte Schaumstoffbahn 1 a wird zusammen mit der Trennbahn 6 auf ein Rohr 8 α aufgespult, welches in Richtung des Pfeiles /1 in Drehung versetzt wird. Wenn die Schaumstoffbahn 1 α mit der Trennbahn 6 in zusammengedrückten Spiralwindungen fertig aufgewickelt ist, wird der Durchmesser der Roile dadurch fixiert, daß ζ. Β. ein Klebestreifen 2 nach F i g. 1 aufgebracht wird.The compressed foam web 1 a is wound up together with the separating web 6 on a tube 8 α , which is set in rotation in the direction of the arrow / 1. When the foam web 1 α is completely wound up with the separating web 6 in compressed spiral turns, the diameter of the roll is fixed in that ζ. Β. an adhesive strip 2 according to FIG. 1 is applied.

Schließlich wird die erhaltene Rolle mit Hilfe von η - 1, also vier sich drehenden Sägen 9, welche von einem Halter 10 getragen und durch einen Treibriemen 11 in Drehung versetzt werden und voneinander einen Abstand von der Breite / haben, in /1 = 3 Spulen £ gemäß F i g. 1 zerschnitten. Jedes Band 1 lagen also auf einem entsprechenden Abschnitt 8 des Rohres 8 a. Die an den Seitenrändern der Rolle übrigbleibenden Teile bilden Abfall, weil an den Rändern der Schaumstoffbahn 1 α die Zusammendrückung fehlerhaft sein kann.Finally, with the help of η -1, i.e. four rotating saws 9, which are carried by a holder 10 and rotated by a drive belt 11 and are spaced apart by the width /, the roll obtained is made into / 1 = 3 coils £ according to Fig. 1 cut up. Each band 1 were therefore on a corresponding section 8 of the tube 8 a. The parts remaining on the side edges of the roll form waste because the compression can be faulty at the edges of the foam web 1 α.

Das in der Spule £ eingerollte und durch eine Binde 2 fixierte Band 1 bleibt zwar vollständig zusammengedrückt, könnte aber die Neigung haben, sich an seinen Rändern langsam zu verbreitern. Diese Neigung kann dadurch ausgeschaltet werden, daß die Spulen £ (Fig. 3) auf einem mit einem Zentrierzapfen 13 versehenen Sockel 12 übereinandergeschichtet und durch eine Schnur 13 od. dgl. zusammengehalten werden. Die Schnur 13 kann dabei durch die übereinanderliegenden Rohrstücke 8 hindurchgeführt werden.The tape 1, which is rolled up in the bobbin £ and fixed by a bandage 2, remains completely compressed, but could have the tendency to slowly widen at its edges. This tendency can be eliminated by that the coils £ (Fig. 3) on one with a centering pin 13 provided base 12 is stacked and held together by a cord 13 or the like will. The cord 13 can pass through the pipe sections 8 lying one above the other will.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

ι. 2 A no or shifting of the coil windings against each other. Claims. ^ ^. ^ ^ vmabeknown (Austrian Pa-

1. Pre-compressed joint sealing tape from lentschrift 244553), a foam sealant impregnated To wind up foam with delayed elastic 5 strips for transport spirahg. More dastic Reset, thereby g e k e η η - however, the strip is without compression shows that the tape (1) is simply rolled up for transport. This is a spiral wound up and the reel diameter did not know sealing strips around impregnated is fixed by means of a bandage (2) or the like. Foam with delayed elastic return

2. Fuse sealing tape according to claim 1, gel ίο treatment, so that a pre-compression does not have the characterizes durchweine with a wound effect that when removing the intermediate layer Vi) between the individual tape foam strips from the coil of the strip vorwindunsen only remains in a compressed state and in the-

3. Fus sealing tape according to claim 2, this state is pushed into a joint,
characterized in that the intermediate layer (/) i «In the drawing, the invention is for example made of parchment paper. wisely presented.

4. Joint sealing tape according to claim 2, that Fig. 1 shows a diagrammatic representation of a through characterized in that the intermediate layer (O according to the invention, vorkompnmierter Fuaus. consists of a film with an adhesive, sealing tape;

that adheres to the tape (1) when it is lost. 2 shows schematically in diagrammatic form. sees a device for carrying out the

5. Joint sealing tape according to one of the installation methods;

languages 1 to 4, characterized in that the F i g. Figure 3 shows, in front view, a stack of tape (1) is rolled up onto a piece of pipe (8). coils manufactured according to the invention, which are used for loading

6. Process for the production of a wound-up 25 and for the transport are piled up.

th, pre-compressed joint sealing tape According to FIG. 1 is the coil £ from a joint one of claims 1 to 5, thereby formed sealing tape 1, which to a spiral in indicates that a path (la) made of impregnated spiral windings on a Gnosed foam with delayed elastic tube 8 is rolled up. The Band I is in rich default compressed and spirally 30 direction of its thickness very strongly compressed and is wound up and the resulting is rolled together by an outer bandage 2 in this held at right angles to its axis in several coils (E) pressed and rolled up. the cut and the diameter of each coil bandage 2 is z. B. formed by an adhesive strip. (E) is fixed by means of a bandage (2) or the like. the outer ends of which overlap at 3.

7. Transport unit consisting of several coiled 35. The belt 1 consists of an elastic Joint sealing tapes according to one of the previous- foam with open cells, which with a going claims, characterized in that water-repellent substance are impregnated in such a way that the coils (E) are stacked and by one that the cells are lined but not filled they are cord (14) surrounding them in the longitudinal direction. The tape I thus has a delayed elastiod. Like. Are united. 40 see default on. After unrolling that takes

free tape 1 slowly regains its original thickness, which it was before compressing had. It thus gives the user sufficient time to work in a joint, the width of which is between

The joint sealing tape is especially for the 45 see the thickness of the tape 1 before and after Sealing of joints between pipe parts, pressing together. The band 1 expands Route sections, components, etc. provided. pushing it into the joint finally so far

It is known (French patent from that the joint is completely filled, with 325 883), joint sealing tapes made of impregnation but preferably the tape is not completely removed Foam with delayed elastic back-tensioning 50, so that it is with a certain pressure position for transport in a pre-compressed, completely watertight manner against the joint reveal To deliver condition that the flat tape lays.

through a tightly fitting tubular casing. Polyvinyl foams in particular are used

is held flat. This means that foam, polyurethane foam, natural or synthetic, is not necessary to have special equipment for precompressive rubber foam and foam on the mation ready at the point of use; Based on viscose used,
the pre-compressed tape can be made of the The water-repellent impregnation substance

remove the wrapping and use the egg immediately. The can consist of asphalt bitumen, tar, pitch, an art application such tubular coverings fabric, rubber-like material, wax, paraffin, but is complex and cumbersome. 60 polymers of unsaturated hydrocarbons

The object of the invention is to provide a joint sealing tape, etc. and mixtures of these substances hen according to the preamble of claim 1.

in the simplest way during the transport in front of the possibly on one of its surfaces

keep compressed state. intermediate layer forming a thin coating,

The windings of the reel 65 according to the invention, which is rolled up with the tape 1, separates the spiral windings from each other in a compressed state and avoids the risk of being attached and the bandage or the like only needs to be glued to the outer end.
of the aufeesDulten tape to fix the Abwik- The dimensions of the tape 1 can be arbitrary,