DE1679144C

DE1679144C - Raising device and process for its manufacture

Info

Publication number: DE1679144C
Authority: DE
Inventors: Der Anmelder Ist
Original assignee: Zenhäusern, Heinrich, Urdorf (Schweiz)
Publication date: 1972-10-12

Description

schweißen der Aluminiumteile. Ein Verschweißen der Stahlteile erfolgt nicht. Auch bei der Herstellung der Steigleiter wird das Innere des Stahlrohres 2 in der beschriebenen Weise mit einer Schutzschicht 3 versehen. Die Sprossen 19 können mit Trittauflagen versehen sein.welding the aluminum parts. A welding the steel parts are not done. The interior of the steel tube 2 is also used in the manufacture of the fixed ladder provided with a protective layer 3 in the manner described. The rungs 19 can be equipped with footrests be provided.

Die Verankerung der beschriebenen Steigleiter 16 kann durch Einbetonieren im Mauerwerk erfolgen, wie dies aus den F i g. 3 und 4 ersichtlich ist. Es ist aber auch oft zweckmäßig, die Verankerung lösbar und einstellbar zu halten. In diesem Falle werden Flanschkonsolen 6 verwendet, die dübelartige Befestigungselemente zur Bildung einer wegnehmbaten Befestigung besitzen.The anchoring of the fixed ladder 16 described can be done by concreting in the masonry, as shown in FIGS. 3 and 4 can be seen. But it is also often useful for the anchoring to be detachable and adjustable to hold. In this case, flange brackets 6 are used, the dowel-like fastening elements to form a removable attachment.

In ähnlicher Weise kann die Steigvorrichtung auch als Einholmleiter ausgebildet sein.In a similar way, the climbing device can also be designed as a single stile ladder.

Hierzu 1 Blatt Zeichnungen 1 sheet of drawings

Claims

1> J 2 th climbing devices the advantages of longer claims: duration of use and, in particular, a higher level of safety in use.

1. Climbing device, consisting of in one The proposed climbing device can Masonry fastenable tubular parts 5 advantageously produce by a method in which and at least one tubular connection brackets according to the invention, the protective tube on its web between these parts, in which all parts from the entire surface area are fixed in one form a supporting inner steel pipe and a die and then driving the steel pipe into the ses surrounding protective tube is composed of protective tube under high pressure.

are, characterized in that the io In the drawing, exemplary embodiments of the protective tube (1) are made of pure aluminum and the subject matter of the invention is shown, namely shows
that the steel pipe (2) on its inner surface with F i g. 1 a step in front of a protective layer (3) designed as a stirrup against oxidation in a diagrammatic representation,
see and under high pressure in the protective tube Fig. 2, the climbing device according to Fig. 1 is pressed in peril). 15 perspective sectional view,

2. Method for producing a climbing device- F i g. 3 a climbing device designed as a ladder according to claim 1, characterized in device in a graphical representation and

that the protective tube (1) on its entire jacket F i g. 4 the climbing device according to FIG. 3 in side face is set in a form and that view.

Then the steel pipe (2) is driven into the 20 according to the embodiment of FIGS. 1 and 2 Protective tube (1) takes place under high pressure. the climbing device from a number of U-shaped ge

curved stirrups 5, which are anchored in the masonry. Each stirrup 5 consists of a load-bearing inner steel tube 2 and one around this

25 protective tube 1. which is made of pure aluminum

exists, with only 1 to 2 ° 0 metallic admixtures like iron and silicon, etc. Such a pipe has little strength, but can be very easily

The invention relates to s ^; deform well cold and warm on a climbing device. In the air, soft from 30 fastenable in a wall .erk it quickly pulls itself with a dense oxide skin that protects the tubular parts and at least one tubular connecting web between these parts from further attack and gives it a good resistance z. B. stands against, in which all parts of a load-bearing internal weathering gives. The steel tube 2 is composed of a protective tube surrounding its inner surface with a protective layer 3 against the steel tube. The invention also relates to oxidation and is pressed into a method for producing the proposed protective tube 1 under high pressure. For this purpose there is a climbing device. the aluminum protective tube 1 in

Such climbing devices are mainly brought into a shape that softens the protective tube 1 for sewer or installation shafts or for its entire outer jacket surface. On Weirs. Chimneys, towers, etc. are used and then the steel pipe 2 is under high pressure are therefore subject to very strong chemical and driven into the protective tube 1, whereupon the interior mechanical influences. There are already for this of the steel pipe 2 a coating of a silicone purpose, z. B. from the Swiss patent or molybdenum layer, through which the 370 715. Steel pipe stirrups known, which is protected against oxidation with steel pipe 2 e.nem plastic coating, e.g. B. made of polyethylene, the silicon or molybdenum layer can be applied senen are. Such stirrups are difficult to produce using a vacuum process. But it is also possible to do so and are very sensitive, as the artificial borrowed, the silicone or molybdenum layer by Aufstoffüberzug mechanically damaged very easily. fog on the inside of the steel tube 2 aufzubnn-Schon the smallest crack in the coating directs the corrosive through a silicone or molybdenum containing liquid the tubular steel core, which then becomes unstoppable by means of a spiral nozzle inside the steel core and is mostly destroyed unnoticed. rohres2 is finely atomized. The Schuvrohr 1 with Especially at the fastening points of such steel pipe insert v.ird then into the counter Plastic-coated steel tubes made a suitable U-shape, so the stirrup S lasts in the masonry the thin plastic layer is formed, whereupon the ends of the parallel fig damaged or destroyed, so that there the steel tube 55 legs 4 either flattened and widened the chemical and mechanical influences are anchored in the masonry or these is protected exposed. by means of flange brackets 6 detachable on the masonry. The object of the invention is to provide an. The flange consoles 6 are equipped with a dowel climbing device provide the aforementioned type of fastening elements in the masonry, in which the tubular steel core anchors against chemical 60, which look into corresponding bores 7 and mechanical damage is left on all sides.

is largely protected. In Fig. 3 is designed as a ladder 16

The solution to this problem is carried out according to the invention. This consists of two according to the fact that the protective tube made of pure aluminum longitudinal spars 17 and 18, which in turn consists of a nium and that the steel tube on its inner 65 protective tube I made of aluminum with steel tube insert gefläche are formed with a protective layer against oxidation, inserted between soft rungs 19 and are in the protective tube under high pressure. The connection of the rung ends 21 and 20 is pressed. As a result, compared to the known with the longitudinal spars 17 and 18 is carried out by means of