DE1905767C

DE1905767C - Device for the end connection of a hollow profile rod to a continuous rod

Info

Publication number: DE1905767C
Authority: DE
Inventors: Karl Gunnar Farsta Kroopp (Schwe den)
Original assignee: Grafiset System AB, Stockholm
Publication date: 1972-08-10

Description

der Stirnwand 9 ist in die Längsnut 8 eine Schrauben- schraube 6 wirkt. Diese Kraft drückt den Schieber 5 feder 11 eingesetzt, die in einer stirnseitigen Bohrung vom Grund der N«t 8 weg, wobei er über die Ansätze im Schieber 5 in ihrer Lage in der Längsnut 8 ge- 10 das Verbindungsstück 4 gegen die dort befindhalten wird. liehe Innenfläche des Hohlprofilstabs 3 drückt.a screw 6 acts in the longitudinal groove 8 of the end wall 9. This force pushes the slide 5 spring 11 is used, which is in a frontal hole from the base of the N «t 8 away, where he over the approaches in the slide 5, in its position in the longitudinal groove 8, 10 hold the connecting piece 4 against the one located there will. borrowed inner surface of the hollow profile rod 3 presses.

Gemäß F i g. 3 weist der Schieber 5 eine mit Innen- 5 * Die Muffe 12, die in die öffnung 16 im Hohlprofilgewinde 13 versehene Muffe 12 auf, die entweder an- stab eingreift, hindert die Befestigungsschraube 6 geschweißt oder einstückig mit dem Schieber 5 ver- daran, in direkten Kontakt mit den Seitenflächen der bunden ist. Bei in die Längsnut 8 des Verbindungs- öffnung 16 zu gelangen, so daß eine Verformung Stücks 4 eingesetztem Schieber 5 durchgreift die der öffnung 16 unter der relativ hohen Belastung, Muffe 12 eine entsprechend geformte öffnung 16 in io denen die Vorrichtung 1 ausgesetzt ist, und eine Beder Wandung des Hohlprofilstabs 2. In dem Verbin- Schädigung des Gewindes an der Befestigungs-. dungsstück 4 ist eine mit der Muffe 12 korrespondie- schraube 6 bei wiederholtem Gebrauch der Vorrichrende Aussparung 14 am Nutgrund vorgesehen, die tung 1 vermieden istAccording to FIG. 3, the slide 5 has an inner 5 * The sleeve 12, which in the opening 16 in the hollow profile thread 13 provided sleeve 12, which either engages rod, prevents the fastening screw 6 welded or in one piece with the slide 5, in direct contact with the side surfaces of the is bound. To get into the longitudinal groove 8 of the connecting opening 16, so that a deformation Piece 4 inserted slide 5 reaches through the opening 16 under the relatively high load, Sleeve 12 has a correspondingly shaped opening 16 in which the device 1 is exposed, and a handle Wall of the hollow profile rod 2. In the connec- Damage to the thread on the fastening. The connection piece 4 is a screw 6 corresponding to the sleeve 12 when the device is used repeatedly Recess 14 is provided at the bottom of the groove, the device 1 is avoided

eine Schrägfläche 15 aufweist, die in einem spitzen Die Erfindung schafft nicht nur eine wirkungsvolle Winkel zur Achse der Befestigungsschraube 6 ange- 15 Kupplungsvorrichtung; durch die besondere Konordnet ist. stniktion der Kupplung können Profile wesentlichhas an inclined surface 15, which in a pointed The invention not only creates an effective Angle to the axis of the fastening screw 6 attached 15 coupling device; due to the special design is. Stniktion of the coupling can make profiles significantly

Wenn die Befestigungsschraube 6 gegen die Schräg- dünnere Wände aufweisen als bisher,If the fastening screw 6 against the sloping walls have thinner walls than before,

fläche 15 eingedreht wird, verbleibt der Schieber 5, In Fig. 5 ist ein Beispiel für eine Anwendung dersurface 15 is rotated, the slide 5 remains, In Fig. 5 is an example of an application of the

da seine Muffe 12 in die öffnung 16 eingreift, in sei- erfindungsgemäßen Vorrichtung dargestellt. Hier sindsince its sleeve 12 engages in the opening 16, it is shown in the device according to the invention. Here are

ner Lage in bezug auf den Hohlprofilstab 3, während ao zwei lotrecht angeordnete, parallel im Abstand zuein-ner position in relation to the hollow profile rod 3, while ao two vertically arranged, parallel at a distance from one another

das Verbindungsstück 4 weiter in den Hohlprofil- ander verlaufende Bauteile miteinander zu verbinden,to connect the connecting piece 4 further into the hollow profile - other components running with each other,

stab 2 hineingezogen wird. Dabei wird das Hohl- Diese Bauteile werden wegen ihrer besonderen Ver-rod 2 is pulled into it. The hollow- These components are because of their special

profil 3 über die Muffe 12 in Richtung auf den Stab 2 wendung als Vertikalstützen 17 bezeichnet, die durchprofile 3 over the sleeve 12 in the direction of the rod 2 turning as vertical supports 17 referred to by

gedrückt. Hierdurch wird die Schraubenfeder zusam- Querstäbe 18 miteinander zu verbinden sind. Dabeipressed. As a result, the helical spring will be connected together cross bars 18. Included

mengedrückt. Beim Lösen der Befestigungsschraube 6 as ist in der Zeichnung nur das vorspringende Eingriffs-squeezed. When loosening the fastening screw 6 as, only the protruding engagement point is shown in the drawing.

drückt die Schraubenfeder 11 das Verbindungsstück 4 teil 7 sichtbar. Die Eingriffsteile 7 der Querstäbe 18the coil spring 11 presses the connecting piece 4 part 7 visible. The engaging parts 7 of the cross bars 18

nach außen, so daß die beiden Bauteile leicht von- werden in die offenen Enden der hinterschnittenenoutwards, so that the two components are easily undercut into the open ends of the

einander getrennt werden können. Nuten der Vertikalstützen 17 eingeführt. Nach An-can be separated from each other. Grooves of the vertical supports 17 introduced. After arrival

Die Schrägfläche 15 erzeugt eine Kraft, die nicht Ordnung der Querstäbe 18 in der gewünschten LageThe inclined surface 15 generates a force that does not order the transverse rods 18 in the desired position

nur in Längsrichtung des Verbindungsstücks 4, son- 30 werden die Befestigungsschrauben der Vorrichtungenonly in the longitudinal direction of the connecting piece 4, but the fastening screws of the devices

dem auch in Achsrichtung der Befestigungs- angezogen.which is also tightened in the axial direction of the fastening.

Hierzu 1 Blatt Zeichnungen 1 sheet of drawings

Claims

i 905 767 ι ² i 905 767 ι ²

been set. However, these clamping cartridges can Claims: not readily applied to hollow profile bars

will.

! Device for end-side connection The invention is based on the object of the one Hollow profile rod to a continuous 5 aisle described device nut the goal Rod with at least one undercut groove to improve the stress on the into which a device known to be slid on the end face in the hollow profile rod can be designed as a threaded bolt guided connecting piece positively formed through-opening engages with the fastening, the one recess with a helical screw - based on a unit of area - area for the engagement of the conical wedge tip io is much smaller.

one perpendicular to the axis of the hollow profile rod The invention solves this problem in that

the fastening screw to be screwed in, the connecting piece on its side facing the fastening is characterized in that the screw is provided with an undercut binding piece (4) on its longitudinal groove facing its transverse screw (6) with an undercut adapted slide is inserted, which is provided with a cut longitudinal groove (8) in which a guide for the screw has,
slide (5) adapted to its cross-section. This guide on the slide has the purpose of

is that a guide for the fastening- the thread of the fastening screw of a screw (6). direct contact with the wall of the hollow

2. Apparatus according to claim 1, characterized to keep away ger 30 profile rods. Characterized by the whole, that the guide for the fastening order exerted on the fastening screw screw (6) from one of the slide (5) forces can protrude on a much larger thread, be distributed through an opening (16) in the cavity. It also takes the lead profile rod (2) gripping sleeve (12) is formed. the turning force exerted on the fastening screw

3. Device according to claim 1 or 2, there- fore 25 forces largely on and therefore relieves the through-flow characterized in that the slide (5) stim- griffsöffnuag, whereby this wall now side a helical spring (11) in the longitudinal groove can be much thinner than previously required.

of the connecting piece (4), which can be advantageous against the guide for the fastening on the engagement part (7) of the connecting piece screw from a protruding from the slide, (4) located end wall (9) of the longitudinal groove (8) 30 reaching through an opening in the hollow profile rod supports. Be formed sleeve.

In a further embodiment of the invention can further-

be provided that the slide has a front face

Has helical spring in the longitudinal groove of the connecting piece 35, which is against one on the engagement part The invention is based on a device for longitudinal groove is supported.

end-side connection of a hollow profile rod to a The invention is shown in the drawing in a continuous rod with at least one example behind. It shows
cut groove, in which a front side in the hollow - 40 F i g. 1 shows a longitudinal section through the inserted profile rod slidably guided connector device,

engages positively, which has a recess with a F i g. 2 the device in section along the line

Inclined surface for the engagement of the conical wedge AA in Fig. 1,

tip of a perpendicular to the axis of the hollow profile rod F i g. 3 is a perspective view of a

Has to be screwed fastening screw. 45 part of the device,

In the known devices of this type, FIG. 4 shows a section along the line BB in FIG. 1

the fastening screw in a threaded hole and

held in the wall of the hollow profile rod. Since F i g. 5 an application example of the device,

the walls of such hollow profile rods are relatively thin. According to the illustration in FIG. 1 is a device

are formed, a very high edge pressure 50 device 1 in a hollow profile rod 2 to its end face the fastening screw is exercised, resulting in connection to a continuous, hollow Damage to the thread both on the threaded rod 3 used. The device 1 comprises a bore as well as on the fastening screw lead binding piece 4, a slide 5 and a fastening can. In addition, this edge pressure can supply screw 6. The connecting piece 4 is on silk The threaded hole deforms. Since the end directed towards the rod 3 running through it Fixing screw also exerted a very high torque with a part 7 designed like a hammer profile is, the wear is seen in one of the undercut grooves on the Claim of the threaded hole and the fastening rod 3 engages. The connector 4 is also screw increased. To the edge pressure provided with an undercut longitudinal groove 8, the To prevent it from becoming too high, a minimum 60 can extend away from the end facing away from the engagement part 7 thickness of the walls of the hollow profile rod also then of the connecting piece 4 up to an end wall 9 not be undercut if it extends from static, which is immediately behind the intervention-reasons it is possible. part 7 is located.

In a known clamping device for connecting a slide 5 is slidable in the longitudinal groove 8 arranged by 65 arranged at right angles to one another. This slide 5 has protruding on both sides Panels are to avoid these disadvantages clamping ribs, which the undercut of the cartridges in the longitudinal groove 8 made of wood or in its strength, directed towards each other Panels made of similar material engage behind inserts 10. Between the slide 5 and