DE20321478U1 - Front connection of a pipe to a substructure - Google Patents

Abstract

facing side Connection of a pipe (1) to a substructure (3) or to an adjacent tube (1), with a in the frontal opening of the Tube (1) enclosing and against the inner wall (5) of the tube (1) tensile, compression and rotationally fixed expandable coupling piece (4), which a connecting device (6) for the connection of the coupling piece (4) having the substructure (3) or an adjacent coupling piece (4), wherein the coupling piece (4) from a in the frontal opening of the tube (1) enclosing, the inner wall (5) of the tube (1) adjacent sleeve (10) and one in the sleeve (10) enclosing and against the inner wall (11) of the sleeve (10) expandable expansion dowel (8) exists, and that the expansion dowel (8) at its frontal opening of the Pipe (1) facing away from slots (15) and on its outer jacket (16) one or more projections and recesses (17), characterized characterized in that the sleeve (10) in the area of the projections and recesses (17) of the expanding plug (8) a free spin ...

Description

The The invention relates to a frontal connection of a pipe a substructure or coupling connection with an adjacent Pipe.

frontal connections the aforementioned genus are preferably used during assembly of rails for sliding doors, the subject of the substructure is usually a wall, on which the running rail is to be fastened. The invention relates but also the coupling two aligned with each other Running rails, d. H. the extension a running rail through another track, with a. While the The aforementioned rails are usually arranged to extend horizontally are, there is another application of the generic frontal Connection in the vertical arrangement of the pipe, for example in a floor-ceiling connection, wherein the tube as a stop element for one Serve the door can.

at previously known end-side fasteners of rails on a Wall are used as rails solid profiles use their wall Close free end of one on the slide rail by means of screws fixable sliding sleeve covered becomes. In the sliding sleeve grips a wall holder that can be screwed to the wall in such a way that by means of the sliding sleeve Both the wall bracket and the free end of the track can be covered are. The sliding sleeve enforces on the one hand an optically undesirable thickening of the track in the End of the track, in addition become the for the fixing of the sliding sleeve required on the running rail, externally visible screws as disturbing felt.

task The invention is an end-side connection of the aforementioned To provide genus, which eliminates the aforementioned disadvantages, wherein be created with structurally simple means attachment which is adapted to receive the required radial and axial forces and where no external detectable fasteners apply.

The Invention solves the task with the teaching of claim 1.

To proviso The invention may be due to the use of a proposed Coupling piece, waiving a full-walled profile, in less expensive How to find a pipe use, which in its interior the coupling takes up, d. H. all for the frontal connection to a wall or the coupling with components required in a neighboring pipe are inside the Pipe arranged so on externally recognizable connecting means can be dispensed with. An increase in diameter or Thickening of the pipe in the coupling area is avoided. The connection according to the invention is suitable for both the attachment or coupling of horizontally extending as a rule Rails for the sliding or rolling guide any support elements as well as for the ground level or near the ceiling Connection of substantially vertical pipe profiles on a substructure or for handrails.

Further advantageous ausgestaltende features of the invention are the subject the dependent claims.

One characterized technically simple and heavy-duty coupling piece characterized by a in the frontal opening of the pipe enclosing expansion dowel, the coupling piece from one in the frontal opening the tube enclosing, the inner wall of the tube adjacent sleeve and one in the sleeve enclosing and spreadable against the inner wall of the sleeve expansion dowel exists. The expansion dowel itself is formed in a further embodiment as an expansion sleeve and instructs its inner wall on an internal thread, which is a hexagon socket having aufbringende expansion nut. By means of the expansion nut can the expansion dowel under the action of the sleeve tension, pressure and rotation in pipes are clamped. The spreading process of the expansion anchor itself is guaranteed by that it faces away from the end opening of the tube at its End slits and on his outer coat has one or more projections and recesses. The aforementioned projections and recesses correspond in the spread with a corresponding free rotation on the Sleeve, so that when screwing the expansion nut in the expansion sleeve a Clawing between the expansion sleeve and the sleeve and thus at the same time a tension with the inner wall of the Tube takes place.

The Sleeve points Advantageously, one of the front side of the tube adjacent collar, so that their position with respect to the front opening of the pipe is precisely defined and at the same time a cover of the front side of the pipe. It has proved to be useful for the sleeve and the expansion dowel to use different materials; a good tension is guaranteed if the sleeve made of plastic and the expansion dowel made of brass.

The connecting device for the connection of the coupling piece with, for example, a substructure can be formed by an internal thread of the expansion sleeve designed as an expansion, into which a terminal bolt is screwed, the other end in a suitable manner to the sub construction is connected.

Out establish to be explained later Assembly of the coupling piece beats the invention provides that the bore of the sleeve is slightly smaller than the outer diameter of the expansion anchor is trained.

The Invention will be explained in more detail with reference to an embodiment.

It shows:

1 : A schematic longitudinal section through the end portion of a pipe with a coupling piece.

An Indian 1 illustrated end portion of a pipe 1 used in the embodiment as a guide rail 2 , on whose in the image plane upper lateral surface 21 the rollers, not shown, of a support element of a door can run off. In the area of an unspecified end opening of the tube 1 is inside the pipe 1 a coupling piece 4 arranged, which is the connection of the pipe 1 to a substructure 3 serves. The coupling piece 4 consists essentially of a sleeve 10 and one inside the sleeve 10 arranged as expansion sleeve 9 trained expansion dowel 8th , The sleeve 10 consists of plastic and holds under attachment to the inner wall 5 of the pipe 1 so far in the pipe 1 one until they are with a bunch 20 on a front side 19 of the pipe 1 is applied. The bore of the sleeve 10 is slightly smaller than the outer diameter of the expansion anchor 8th , so that during assembly a certain tension between an inner wall 11 the sleeve 10 and an outer jacket 16 the expansion sleeve 9 results. As a result, a rotational movement of the expansion sleeve when initiating the spreading process 9 opposite the sleeve 10 prevented. The expansion sleeve 9 has the spreading process enabling slots 15 and in the area of its inner wall 12 an internal thread 7 in, in the one Spreizmutter 14 can be screwed. To operate the expansion nut 14 serves a hexagon socket 13 , At the substructure 3 opposite end of the expansion sleeve 9 are on the outer jacket 16 the expansion sleeve 9 Projections and recesses 17 arranged with a free spin 18 the sleeve 10 Correspond and secure clawing of the expansion sleeve 9 with the sleeve 10 and at the same time with the pipe 1 guarantee.

The connection device 6 of the coupling piece 4 to the substructure 3 is also in the embodiment by the internal thread 7 realized, so that in the 1 partially illustrated connection bolts 22 on the one hand via the expansion sleeve 9 with the strained coupling piece 4 and on the other hand with the substructure 3 can be connected.

1

pipe

2

guide rail

3

substructure

4

coupling

5

inner wall

6

connection device

7

inner thread

8th

expansion anchor

9

expansion sleeve

10

shell

11

inner wall

12

inner wall

13

Allen

14

Expanding nut

15

slots

16

outer sheath

17

In front- and returns

18

free rotation

19

front

20

Federation

21

lateral surface

22

connecting bolt

Claims (6)

Front connection of a pipe ( 1 ) to a substructure ( 3 ) or to an adjacent pipe ( 1 ), with a in the frontal opening of the pipe ( 1 ) bordering and against the inner wall ( 5 ) of the pipe ( 1 ) tensile, pressure and rotationally fixed expandable coupling piece ( 4 ), which is a connection device ( 6 ) for the connection of the coupling piece ( 4 ) with the substructure ( 3 ) or an adjacent coupling piece ( 4 ), wherein the coupling piece ( 4 ) from a in the frontal opening of the tube ( 1 ) enclosing, the inner wall ( 5 ) of the pipe ( 1 ) adjacent sleeve ( 10 ) and one in the sleeve ( 10 ) and against the inner wall ( 11 ) of the sleeve ( 10 ) expandable expansion dowels ( 8th ) and that the expansion anchor ( 8th ) at its the frontal opening of the tube ( 1 ) facing away from slots ( 15 ) and on its outer shell ( 16 ) one or more projections and recesses ( 17 ), characterized in that the sleeve ( 10 ) in the area of the projections and recesses ( 17 ) of the expansion anchor ( 8th ) a free spin ( 18 ) and that the bore of the sleeve ( 10 ) slightly smaller than the outer diameter of the expansion anchor ( 8th ) is trained. End-side connection according to claim 1, characterized in that the expansion dowel ( 8th ) as an expansion sleeve ( 9 ) is formed and on its inner wall ( 12 ) an internal thread ( 7 ), which has a hexagon socket ( 13 ) having expansion nut ( 14 ). End-side connection according to one of claims 1 to 2, characterized in that the sleeve ( 10 ) one on the front side ( 19 ) of the pipe ( 1 ) adjacent Federal ( 20 ) having. End-side connection according to one of claims 1 to 3, characterized in that the sleeve ( 10 ) consists of plastic. End-side connection according to one of claims 1 to 3, characterized in that the expansion dowel ( 8th ) consists of brass. End-side connection according to one of claims 1 to 5, characterized in that the connecting device ( 6 ) of the coupling piece ( 4 ) from one on the inner wall ( 12 ) of the expansion anchor ( 8th ) arranged internal thread ( 7 ) consists.