DE1952161U - CONNECTION FOR FACILITIES AND EQUIPMENT MADE OF STEEL PIPE. - Google Patents

Description

Connection for facilities and Devices made from steel pipes

The furnace concerns a connection between a through hole and a butt against this pipe to be connected: for facilities and Devices made of steel pipes, in particular furniture made of steel pipes, in which the pipe to be connected is at least two parallel sides, with an eyelet extending from the pipe to be connected through an in a pipe part gate-seen opening protrudes and is wedged part in the pipe.

In a known connection of the type mentioned, a butt against a. continuous pipe adjacent pipe end an im. Inner tube. located Sleeve: with two diametrically opposed Longitudinal slots in which one with a tension member provided wedge engages. The tension member is with

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provided an eyelet, which through an opening in. The continuous pipe protrudes and is fastened inside with a wedge. (German patent specification 596 613).

Such a connection is only held by friction, requires "considerable. Effort and, because of the many individual parts, is tax in ^: the manufacture and. Relatively ... difficult to assemble.

The hiring is based on the task of creating a form-fitting connection, e.g. a continuous pipe and a stump against this -to-be-closed-ear for facilities / and equipment made of steel pipes, which can be produced simply and cheaply and easily assemble is .. - ". . \ - . ■ _ ...:.

According to the. Firing this task is solved by that the to be connected. Pipe, ah its ends. at the Top and bottom so. it is obvious that two Formation shoulders and parallel protruding lobes be that the- lobes.an. their bands. turned and are connected to an eyelet and that into the eyelet protruding through the opening in the pipe running through an expanding wedge, engages, - the one with its ends against the inner wall of the continuous tube is in contact.

The hiring is illustrated in the drawing using a frame connection for a tubular steel chair, for example _: and is described in detail below with reference to the drawing.

Pig. 1. shows, partially in section, a frame connection according to the furnace,. -

E ¹ Ig. 2 shows along: the cutting line drawn in. Mgur 1, a sectional view,

Pig. 3 shows a modified embodiment of a frame connection "according to the firing".

In the embodiment according to FIG. 1, the pipe section 2 represents, for example, the upper part of a leg, which can be connected via cross bars, for example to another leg, the two legs with their cross connections forming an essentially flat structure , represent. Two such G-planar estellteil.e, may of which, one of the front legs and the hind legs others.The, including, are connected via separate Zargenmlire 4 .from rectangular tube with each other. "The Zargenrohre ⁷ 4 are notched at their sin ,, so that .-Contact shoulders 8

and two protruding tabs 6 are formed. the -Lobes 6 are bent at their ends against each other and at their .junction through.a weld 7 connected to each other. In this way a kind of loop is formed. The turn of the Eapjten 6 can take place along an arc; but there are others too. Turns possible.

In. the Eohr 2. is a cross-section; corresponding to the eyelet Opening incised through which the loop in the inside of the leg. 2 can be introduced .. From. Pipe end an expanding wedge 12 is then inserted into the eyelet, which consists, for example, of metal, in particular I-brass. The expanding wedge. 12 is accordingly the loop shape chosen and. lies with the one shown Exemplary embodiment with a flat side against the inner wall of the tube adjoining the frame tube 4 2 at. By screwing a screw, preferably with a hexagon socket, into the expanding wedge, it becomes driven apart and thus achieved a tight fit. The connection thus established is stable and does not affect the appearance of the chair frame in any way. -. "" .- ".

In the modified embodiment according to FIG. 3

is a flat tube profile for the frame tube 16. With two parallel sides selected, while the leg tube 20 is a normal round tube. Auclr ~ here is v / i ede rum the frame tube 16 flashed so that. parallel protruding flaps 22 are formed, which are connected by a weld 24. The notch has here, of course, to take place in such a way that the shoulders 18 of the frame tube 16 adjoin the circumference des Eohres 20 adapt. The expanding wedge 26 is here against the inside of the tube 20 with a Arc section. The Monkge is the one here same as described above under Figures 1 and 2. . ■.

It is of course also possible to use a flat pipe according to Figure 3 with a square tube, as in the embodiment according to Figures 1 and 2, to be combined.

Claims (1)

.RA. 586 6 2 4 * 1 ft It S ο h u t ζ a η. s ρ r U: c h Connection between a continuous pipe and a butt against this pipe to be connected for facilities and equipment. Steel pipes, in particular furniture made of steel pipes, in which the to be connected Pipe at least two parallel sides, one of which is from the pipe to be connected outgoing eyelet protrudes through an opening provided in a pipe part and wedged in the pipe part is characterized in that the to be connected The tube (4) is notched at its ends on the top and bottom so that two contact shoulders (8) and parallel projecting tabs (6) are formed that the tabs (6) are bent at their ends and closed an eyelet are connected and that in the through the Opening (10) in the continuous tube (2) protruding eyelet engages an expanding wedge with its ends against the inner wall of the tube (2). ^^^! ^ S ^ Z ^^^^^ "J" «* ·» ■ «. * *« From *, w * Ca uaä.fcf.j. «* Efogeretohtoft UflfsrJoam -hJL ·» ί, Ι, ., '" ^{che 88} ^ Mn ₉ « te Atwekshune hf nOht ^ n- * zv to Obliohw prices «oal / efetf '*** ·' ^Mt ^ * ⁸ ' ™ * ™ hterven vmU .« ois-tephn Oeutsstei Ptek eobrauehsmustentcUe