DE1991804U - JOINT CONNECTION FOR PROFILE PIPES. - Google Patents

Description

PA 382 595-3. IB

Patent attorneys

Dr. O. Loesenbeck

Dipl.-Ing. Socks

Dipl.-Ing. Loesenbeck

48 Bielefeld, Herforder Strafje 17

7/3

Keiche & Go., & 91 Lage / Lippe ,; Gas street 15th

Butt joint for profile tubes

Devices for connecting the butt abutting Endai of profile tubes by means of one in the ends of the to be connected Profile pipes introduced insert pipe are known, including those in: those in recesses of the insert -. tube are used at the joint of the profile tube plates, which are attached to the inside of the hips or corners of the Profile tubes are in contact.

In these known butt joints, an undesirable one The ears falling apart at the joints due to rivets or screws prevented from passing through holes in the profile tubes ■ ..-. and the insert tube it is passed through. By attaching the! depths or screws are the manufacturing costs of Components with such butt joints increased considerably »

ice: This Unteriuge löeschieiqtmy ^ noocnwuonapi)> 5i aie iuitsiü eimjeteim-ti »,> i» .s-aonl / on d «-W qg d« t originally submitted "Uniedogen ob Oh legal Sedauluno <iat Abweiehunq Hl. ftloW checked: Unleriogenes originally submitted are to be found in <ieft offices. They can, however, be viewed free of charge for any particular interest. G & teiWSfÄfc

In addition, the lines and nuts of the rivets or screws fall with many components, for example with .Profile tubes Manufactured closed door and window frames in - "Eisten". Railway wagons are annoying to the eye is ■ ■

The innovation is therefore based on the task of a. Shock. to create binding for profile tubes, which the aforementioned Does not have disadvantages, so practically completely from the outside is invisible, but is still characterized by high strength and security,

The solution to this problem is essentially that; in the case of a butt joint of the type mentioned in the introduction, zxfei U-shaped brackets are arranged in the interior of the storage tube Thighs from the lateral. Recesses of the storage tube .. protrude and through one on the facing inner surfaces the middle bracket webs acting pressure screw against the opposing inner surfaces, or corners of the Profile tubes can be pressed. The end of the pressure screw lies while completely inside a profile tube and is only. through a relatively small hole in the profile tube with the help of a Screwdriver or screwdriver is accessible from the outside

In the case of ProfilroJiren with opposing, inwardly drawn ribs or longitudinal grooves, the U-shaped clamping. Brackets shaped so that their legs the .Ribs or grooves of the Profile tubes enclose on both sides free of play, so that a

- ο

mutual twisting or twisting of the butt butting Profile tubes impossible and thus in every case an exact centering of the profile tubes at the joint is guaranteed is.

The production of this butt joint is very easy, because only a single pressure screw needs to be tightened to create an absolutely secure and rigid connection between the to produce butt jointed profile tubes.

The connection after firing can also be achieved with miter joints by inserting an angled single-bearing tube used and in both legs of this tube two IT-shaped Arranges bracket with a pressure screw.

The drawing shows the innovation in two exemplary embodiments illustrated. Show it:

1 shows a longitudinal section through a butt joint formed according to the innovation. :

Fig._ 2 shows a cross section along the line A> B of-Fig. 1, Fig. 3 shows a longitudinal section through another embodiment the butt joint according to the innovation.

Into the butt ends of the rectangular ones Profile tubes i and 2, which on their opposite Sehmal sides have drawn-in longitudinal grooves 3, a rectangular storage tube 4- is introduced in a known manner,

the outer dimensions of which correspond approximately to the clear hatches of the profile tubes "1 and 2. The middle part of the central part in the area of the joint is provided on one narrow side with a rectangular recess 6 'and ax" on the opposite narrow side with two longitudinal slots »inside the storage tube 4, two U-shaped brackets 7 and 8 are arranged, the length of which corresponds to the length of the recess 6 and the longitudinal slots. The side legs 7 ^{S of} the bracket 7 protrude from the recess 6 of the profile tube 4 and the - side legs 8 'of the bracket 8 from the longitudinal slots of the. "- - '

In the embodiment according to Figo 1 and 2, the bracket 8 is welded in the insert tube 4, while the bracket 7 i- ¹¹ Aer recess is movably 6., Through a valve provided in the middle of the bracket 7 hole of the shank of a bolt 9 is performed j ^{whose cylindrical head 9 1} lying in the bracket 7 has a hexagon socket. The offset end 9 ″ of the screw shank is passed through holes in the bracket 8 and the storage tube ε 4 and provided with a point = Between the two brackets 7 and 8, a square nut 10 is arranged on the shaft of the screw 9, which is so large is dimensioned so that it cannot turn when turning the very hood 9 »A hole 11 is provided in a longitudinal groove 3 of the profile tube 1 through which a socket wrench can be passed to tighten the screw 9 ο" - ■ "■ '.' .-. ■

_ 5 -

When the screw 9, which is provided with a right-hand thread, is turned counterclockwise, the nut 10 is moved against the inside of the bracket 7 and the shoulder of the screw shaft 9 is pressed against the inside of the bracket 8. As a result, the bracket legs 7 ¹ and 8 ^{1 are} pressed against the inner surfaces of the profile tubes 1 and 2 on both sides of the longitudinal grooves 3. At the same time, the tip of the shaft end 9 ″ i & the material of the profile tube 1 is pressed in.

In this way, absolutely precise centering of the tubes 1 and 2 at the joint 5 is ensured with extremely simple means and at the same time a rigid and secure connection of the profile tubes 1 and 2 is achieved, while the connecting means clay are completely invisible on the outside. ^:

The embodiment according to FIG. 3 differs from the one above described embodiment of FIGS. 1 and 2 in that the bracket 8 is provided with two pins 12, of which one in a hole in the profile tube 1 and the other in a hole of the profile tube 2 engages. The protruding from the storage tube 4 Ends of the pins 12 must not be longer than the sum of the distances 13 * and 13 "between the outer wall of the Einlagerrohres 4 and the inner walls of the profile pipe grooves 3, otherwise they could complicate the assembly. It also applies the remote end 9 "of the screw 9 here. Only in a middle Hole of the bracket 8 provided between the two pins 12

a. The screw 9 and that for inserting a socket wrench serving hole 11 are here in the area of the joint 5

In this embodiment too, when the screw 9 is tightened, the bow handles 7 * and 8 ^{1 are} pressed against the inner surfaces of the profile tubes 1 and 2 on both sides of the longitudinal grooves 3. An undesired pulling apart of the profile tubes 1 is absolutely reliably prevented here by the pins 12 engaging in the holes of both tubes.

Claims (1)

RA.382 595-17. Protection claims SS SS SS ShI SS SS S3 SmS SSi SS * SS S! 5 ίΐ2 SS 53 aSX S3 CS SS! SS SS S! 5 SSf S3 «SS Sv« SS SuS SS 1. Butt joint for profile tubes by means of a bearing tube inserted into the ends of the profile tubes to be connected and in lateral recesses or longitudinal slots of this tube, centering means resting against the inside of the ribs or corners of the profile tubes, characterized in that two U-shaped brackets ( 7 and 8) are provided, the side legs (7 ¹ and 8 ¹ ) of which protrude from the recess (6) or the longitudinal slots of the insert tube (4) and by a pressure screw acting on the facing inner surfaces of the middle bracket webs (9) against the en " opposing inri surfaces or corners of the profile tubes (1 and 2) can be pressed. 2. butt joint for profile tubes according to claim 1, characterized in that that on the shaft of the pressure screw (9) between the brackets (7 and 8) a secured against rotation Nut (10) is arranged. 5. butt joint for profile tubes according to claim Ί, characterized in that the Eopf (9 ¹ ) of the screw (10) inside a profile tube (1) or both - profile tubes (Ί and 2) and through a small hole in the profile tube (1) or the Profile tubes (1 and 2) with the help of a screwdriver or - is accessible from the outside. 4. butt joint for profile tubes according to claim 1 and 2, characterized in that the pressure screw (9) has an offset end (9 ¹ ) which is passed through holes of a bracket (8) and the insert tube (4) and is provided with a tip which penetrates into the wall of the profile tube (1) when the pressure screw is tightened. 5 butt joint for profile tubes according to claims 1 and 2, _ da-, characterized in that the bracket (8) receiving the offset end (9 ") of the screw shaft (9) is in the storage tube (4) by welding or the like. is attached. 6. butt joint for profile tubes according to claim 1 and 2, characterized characterized in that the bracket (8) in the middle rope has a hole for the remote end (9 ") of the pressure tube (9) and provided on both sides of this hole with two pins (12) guided through the holes of the insert tube (4) is, one of which in a hole of a profile tube (1) and the other engages in a hole in the other profile tube (2).