Profile bar, profile assembly and method for producing a profile assembly

Abstract

A profile bar (10, 10a) formed as an extruded part and consisting of a light metal alloy, in particular an aluminum alloy, with a rectangular in particular square, cross-section, wherein a longitudinal groove pair (20, 20a), comprising two longitudinal grooves arranged parallel to one another and at a distance from one another, is provided in each case on at least one lateral surface, preferably on all four lateral surfaces, and with at least two, preferably four, longitudinal channels which extend parallel to the longitudinal grooves and which form in each case an opening (40) for fastening in each case a pen (34) on each of the two end faces (36) of the profile bar (10, 10a), wherein each longitudinal channel is arranged on an imaginary intersection line of planes extending at a right angle to one another and arranged perpendicularly to in each case a lateral surface, wherein at least one of the planes is a longitudinal center plane of a longitudinal groove of a longitudinal groove pair (20).

Claims

1. A profile bar (10, 10a) constructed as an impact extrusion part from an aluminium alloy with a rectangular cross-section having lateral surfaces (37), wherein on at least one lateral surface a longitudinal groove pair (20, 20a) comprising two longitudinal grooves arranged parallel to one another and spaced apart from one another is provided, wherein an undercut longitudinal groove (15) to receive sliding blocks (51) is provided centrally along the lateral surface (37) provided with the longitudinal groove pair (20, 20a), wherein the undercut longitudinal groove (15) is between the longitudinal grooves (20, 20a) of the longitudinal groove pair (20, 20a) provided on the lateral surface, and at least two longitudinal channels running parallel to the longitudinal grooves, wherein the longitudinal channels form on each of two end faces (36) of the profile bar (10, 10a) an opening (40) for fastening a pin (34), wherein each longitudinal channel is arranged on an imaginary intersection line of planes running at right angles to one another and arranged perpendicularly to respective surfaces of the lateral surfaces, wherein at least one of the planes is a longitudinal center plane of one of the longitudinal grooves of the at least one longitudinal groove pair (20), and wherein the imaginary intersection line of planes forms a longitudinal center axis of the associated longitudinal channel.

2. The profile bar according to claim 1, wherein the planes forming the intersection lines are longitudinal centre planes of two longitudinal grooves of different longitudinal groove pairs (20, 20a) arranged on two lateral surfaces of the extrusion part which are oriented at right angles to one another.

3. The profile bar according to claim 1, wherein on the two end faces (36) two of the openings (40) are arranged lying opposite diametrically in relation to a longitudinal central axis of the profile.

4. The profile bar according to claim 1, wherein the longitudinal grooves of each longitudinal groove pair (20, 20a) have a rectangular cross-sectional area.

5. The profile bar according to claim 4, wherein the longitudinal grooves (17, 18) of each longitudinal groove pair (20, 20a) are configured as undercut grooves to receive connectors for connecting two parallel profile bars (10, 10a).

6. The profile bar according to claim 1, wherein the profile bar (10, 10a) has a central channel (11) to receive an anchor screw.

7. The profile bar according to claim 6, wherein an imaginary connecting line (22), arranged between two diametrically opposed longitudinal channels (21), intersects the central channel (11) centrally.

8. The profile bar according to claim 1, wherein a diameter (d) of the openings (40) corresponds to a groove width of the longitudinal grooves (17, 18) of the longitudinal groove pair.

9. A system, comprising at least one profile bar according to claim 1, wherein at least two pins (34) arranged in respectively one of the openings (40) formed by the longitudinal channels project from the end face of the profile bar (10, 10a).

10. The system according to claim 9, wherein the pins (34) are held in the longitudinal channels by one of clamping and press fit.

11. The system according to claim 9, wherein a diameter (d) of the pins corresponds to a groove width of the longitudinal grooves.

12. The system according to claim 11, wherein a connecting element (25) is provided for connecting with one another two profile bars comprising two support sections (26, 27) arranged at right angles to one another, wherein on the side of each support section (26, 27) facing the respective profile bar (10) at least one extension (32, 33) is formed, which cooperates with one of the longitudinal grooves and aligns the connecting element (25) to the profile bar (10, 10a).

13. The system according to claim 12, wherein, in the support sections respectively, a through-opening (28) is constructed for a fastening element cooperating at least indirectly with an undercut longitudinal groove (15).

14. A profile assembly (100, 100a) comprising at least a first and a second profile bar, respectively, according to claim 1, wherein the first and the second profile bar arranged at right angles to one another, such that the end face (36) of the first profile bar rests on the lateral surface (37) of the second profile bar and engages with at least two pins (34), arranged respectively in the opening (40) formed by respectively the longitudinal channel (21) of the first profile bar, into both longitudinal grooves (17, 18) of a longitudinal groove pair (20) of the second profile bar and thereby secures the profile bars against twisting.

15. The profile assembly according to claim 14, wherein the profile bars are fixed to one another via a connecting element comprising an anchoring element engaging into the undercut longitudinal groove of one of the profile bars and/or into a central channel of one of the profile bars.

16. A method for producing a profile assembly (100, 100a) according to claim 15, wherein the first profile bar is arranged with at least two pins provided on the end face such that the pins engage in two longitudinal grooves of a longitudinal groove pair (20, 20a) of the second profile bar.

17. The method according to claim 16, wherein the connecting element engages into the undercut longitudinal groove and/or a central channel (11) at least of one of the profile bars, wherein the profile bars are braced with respect to one another by means of the connecting element (25).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further advantages, features and details of the invention will emerge from the following description of preferred example embodiments and with the aid of the drawings.

(2) These show in:

(3) FIG. 1 a profile bar according to concept of the invention,

(4) FIG. 2 a cross-sectional view of the profile bar according to FIG. 1,

(5) FIG. 3 a top view onto the profile bar according to FIG. 1,

(6) FIG. 4 and FIG. 5 respectively a connecting element for connecting two profile bars in different perspective illustrations,

(7) FIG. 6 a profile assembly consisting of two profile bars and a connecting element, in side view, wherein of course alternative connecting elements could be provided, in particular those which tension the two profile bars with respect to one another,

(8) FIG. 7 a view onto the profile assembly according to FIG. 6 in the direction of the arrow VII of FIG. 6,

(9) FIG. 8 a view according to the profile assembly in the direction of the arrow VIII of FIG. 6,

(10) FIG. 9 a perspective view of the profile bar according to FIG. 1 with pins projecting on the end face from openings formed by longitudinal channels,

(11) FIG. 10 a profile assembly modified with respect to FIG. 7,

(12) FIG. 11 a cross-section through profile bars connected with one another at their lateral surfaces,

(13) FIG. 12 an end face view of an alternative profile bar, and

(14) FIG. 13 a top view onto a lateral surface of a profile bar according to FIG. 12.

DETAILED DESCRIPTION

(15) Identical components or respectively components with identical function are provided with identical reference numbers in the figures.

(16) In FIGS. 1 to 3 a profile bar 10 configured according to the invention is illustrated. The profile bar 10 consists at least substantially of aluminium, preferably of AlMgSil, and is produced by impact extrusion. As can be seen in particular with the aid of FIG. 2, the profile bar 10 has a substantially square cross-sectional shape with four identically constructed lateral surfaces. In a core region of the profile bar 10 a central channel 11 is formed which is continuous in longitudinal direction. The profile bar 10 has two planes of symmetry 12, 13 arranged at right angles to one another, which intersect centrally in the central channel 11. In each of the lateral surfaces of the profile bar 10 a continuous, undercut longitudinal groove 15, running in longitudinal direction of the profile bar 10, is formed centrally to the respective plane of symmetry 12, 13. The undercut longitudinal groove 15 serves, in a manner which is known and is therefore not explained in further detail, to receive for example sliding blocks or suchlike, wherein a threaded bore is formed in the sliding block, which threaded bore cooperates with a fastening screw, which is likewise not illustrated. By means of such a sliding block and the fastening screw, for example add-on pieces can be fastened to a profile bar 10. On the side of the undercut longitudinal groove 15 facing the respective lateral surface of the profile bar 10 in addition a step-shaped shoulder 16 is respectively formed.

(17) Two continuous longitudinal grooves 17, 18 running in longitudinal direction of the profile bar 10 are formed symmetrically to the planes of symmetry 12, 13 in each of the lateral surfaces of the profile bar 10. The longitudinal grooves 17, 18 form together a longitudinal groove pair and, in the first example embodiment, have a respectively rectangular, in particular a square, cross-section. Here, the distance a of the longitudinal grooves 17, 18 of the longitudinal groove pair to the respective lateral surface of the profile bar 10 and to the shoulder 16 of the undercut longitudinal groove 15 is configured for example of equal size.

(18) For example, the profile bar 10 has an edge length of respectively 40 mm. The distance a is 5 mm and the groove width b of the additional longitudinal grooves 17, 18 is respectively 4 mm with a groove depth of 3 mm.

(19) Furthermore, provision is made that spaced apart from the groove base 19 of the respective longitudinal groove 17, 18 of the longitudinal groove pair 20, a longitudinal channel 21, running in longitudinal direction of the profile bar 10, is formed with a diameter d, wherein the diameter d is adapted to the groove width b of the additional longitudinal groove 17, 18. Here, the additional longitudinal channel 21 is aligned to the additional longitudinal grooves 17, 18 such that the additional longitudinal channel 21 runs parallel to the respective longitudinal groove 17, 18, wherein a connecting line 22 arranged between two diametrically opposed longitudinal channels 21 intersects the central channel 11 centrally. As can be seen unequivocally from FIGS. 1 and 2, the—in the example embodiment shown—four longitudinal channels 21 form on the end face respectively an opening 40, wherein the openings 40 in the example embodiment shown are penetrated centrally by the associated intersection line, on which the associated longitudinal channel 21 lies.

(20) Alternative fastening concepts are also able to be realized. As a rule, these have in common the fact that a connecting element coming into use tensions both profile bars with respect to one another. The longitudinal channels 21 are respectively arranged on an intersection line 25 of two planes arranged at right angles to one another, wherein in the shown example embodiment these planes are formed as central planes of two longitudinal grooves of longitudinal groove pairs offset by 90° to one another, so that a pin (not illustrated) received in the longitudinal channels 21 can engage into an associated longitudinal groove of an identical profile bar, when the two profile bars are arranged at right angles to one another, such that the profile bar having the pins rests with its end face 36 on a lateral surface 37 of the other profile bar.

(21) Each of the longitudinal channels 21 lies on an intersection line 35 of two longitudinal centre planes 36, 37, which are drawn in FIG. 2 for clarification. The intersection lines 35 form the respectively longitudinal central axes of the associated longitudinal channels 21. As can be seen from FIG. 2, the longitudinal centre planes 36, 37 intersecting in the intersection line 35 belong to two longitudinal grooves of different longitudinal groove pairs. These longitudinal groove pairs are situated on two lateral surfaces of the profile bar arranged at right angles to one another. Through the arrangement of the longitudinal channels 21 on these intersection lines 35 it is ensured that a pin introduced into an opening 40 formed on the end face by a longitudinal channel 21 can be inserted into a longitudinal groove of an identical profile bar running at right angles. In an alternative example embodiment, which is not illustrated, in which for example a longitudinal groove pair 22 for receiving pins is provided only on one of the lateral surfaces 37, a corresponding intersection line is likewise as formed by two planes arranged perpendicularly to one another, wherein one of the planes is formed by a longitudinal centre plane of a longitudinal groove of the longitudinal groove pair, and the further plane is a plane which stands perpendicularly on a lateral surface, which runs at right angles to the lateral surface which has the longitudinal groove pair.

(22) An embodiment is basically preferred according to which at least two longitudinal channels lie on respectively an intersection line which is formed respectively by two longitudinal centre planes, intersecting one another in the intersection line, of two longitudinal grooves of different longitudinal groove pairs, which are situated on two lateral surfaces arranged at right angles to one another.

(23) In FIGS. 4 and 5 a connecting element 25 is illustrated for use with profile bars 10 according to the invention. In a first embodiment, the connecting element 25 is constructed as an (aluminium) pressure die casting and comprises two support sections 26, 27 arranged at right angles to one another, in which respectively an elongated hole 28 is formed, which is aligned with the undercut groove 15. The width B and height H of the two support sections 26, 27 is preferably likewise respectively 40 mm.

(24) The support sections 26, 27 are constructed in square, plate-shaped support elements 29, 30, which are connected with one another via reinforcing plates 41, 42 which are triangular-shaped in cross-section, which reinforcing plates are arranged on the opposite end faces of the support elements 29, 30. Four extensions 32, 33 are arranged respectively on the undersides of the support elements 29, 30 facing away from the reinforcing plates 41, 42. The extensions 32, 33 are constructed respectively approximately in cuboid shape with a rectangular cross-section, wherein the one extensions 32, spaced apart from one another in longitudinal direction, are associated for example with the one additional longitudinal groove 17, whilst the two other extensions 33, likewise spaced apart in longitudinal direction, are associated with the second additional longitudinal groove 18. The cross-section of the extensions 32, 33 is adapted in particular to the width b of the longitudinal grooves 17, 18 of a longitudinal groove pair 20.

(25) In an alternative embodiment of the production process of the connecting element 25, this can also be constructed as a cold extruded part. Here, the extensions 32, 33 can either be constructed during the forming process or else as additional, pin-shaped components which are pressed for example into correspondingly prefabricated openings of the connecting element in a separate manufacturing step.

(26) In FIGS. 6 to 8 a profile assembly 100 is illustrated, consisting of at least two profile bars 10 according to the invention and a connecting element 25, connecting the at least two profile bars 10 with one another. Here, the illustration of the connection between the connecting element 25 and the profile bars 10 is made, for simplicity, without the already mentioned anchoring system or respectively the sliding block, and its counter-element, arranged in the central channel 11, which exerts the tensile force which has been mentioned onto the anchoring element or respectively the sliding block, wherein the mentioned parts are necessary in a profile assembly 100 for fixing the components (profile bars 10 and connecting element (25). In particular, however, it is conceivable that provision can be made in accordance with FIG. 8, to insert pins 34 in the longitudinal channels 21 (more precisely in end-face openings 40 formed by these) of the profile bar 10, which lies with its end face on the lateral surface of the other profile bar 10, which pins project over the end face 36 of the profile bar 10 and engage into the longitudinal channels 17, 18 of the longitudinal groove pair 20 of the other profile bar 10. For this, the pins 34 have a diameter which corresponds approximately to the groove width of the longitudinal grooves 17, 18 of the longitudinal groove pair 20. Through the use of the pins 34, the profile bar 10, which rests with its end face on the lateral surface of the other profile bar 10, is prevented from twisting or respectively is positioned and fixed in an angular position to this.

(27) Furthermore, the pins 34, on introduction of a perpendicular to the longitudinal direction of the profile bar 10 carrying the pins 34, stabilize or respectively reinforce the wall regions of the profile bar 10 arranged on both sides of the undercut groove 15, in the additional longitudinal grooves 17, 18 of which profile bar the pins 34 engage. Thereby, these wall regions are prevented from bending open, caused by a tensile force onto the sliding block. Via the profile bar 10 carrying the pins 34, torques introduced therein perpendicularly to its longitudinal axis can also be transferred directly into the other profile bar 10, without the connecting element 25 being stressed for this.

(28) In FIG. 9 the profile bar 10, from the end face of which the pins 34 project, is illustrated again in a single representation. The pins 34 can be notched pins, dowel pins or similar, which are axially fixed in the additional longitudinal channel 21, in particular by a corresponding clamping—or press fit between the additional longitudinal channel 21 and the pin 34. For this, the pins are introduced into the openings formed on the end face by the longitudinal channels.

(29) From FIG. 9 the position of the pins and also that of the longitudinal channels associated therewith relative to the longitudinal grooves 17, 18 of the longitudinal groove pairs 20 becomes particularly clear. In the embodiment shown, in which more than two longitudinal groove pairs 20 (on different lateral surfaces) are provided, it is essential that the longitudinal channels and hence consequently also the pins 34 are situated on intersection lines of longitudinal centre planes of two longitudinal grooves of different longitudinal groove pairs, wherein the longitudinal groove pairs are situated on lateral surfaces offset by 90° to one another.

(30) Furthermore, the profile assembly 100, as in FIG. 20 in a modification to the illustration of FIGS. 6 to 8 with the use of the pins 36 can also be constructed without the connecting element 25. Thus in FIG. 10, the two profile bars 10 arranged at right angles to one another can be seen, wherein in the one profile bar 10 in its central channel 11 an anchoring element 50 is situated, which exerts a tensile force, directed in the direction of the anchoring element 50, onto a sliding block 51 anchored in the undercut longitudinal groove 15 of the other profile bar 10.

(31) The production of a profile assembly 100 comprises the fastening of a profile bar 10 or of another element on a lateral surface of the profile bar 10 by means of a sliding block 51 or similar arranged in the central channel 11 of the profile bar 10, and the application of a tensile force onto the sliding block 51 or similar, wherein extensions 43 or similar engage into the additional longitudinal grooves 17, 18 of the profile bar 10 carrying the sliding block 51 or similar, which extensions prevent the central channel 11 from an expansion as a result of the tensile force onto the sliding block 51 or similar.

(32) In FIG. 11, modified profile bars 10a are illustrated, which form a profile assembly 100a. The profile bars 10a have longitudinal grooves 17a, 18a forming longitudinal groove pairs 20a, which longitudinal grooves are configured respectively in the form of an undercut groove. Thereby, two profile bars 10a can be connected with one another with the use of at least one double swallowtail-shaped connecting block 45 engaging in a form-fitting manner into opposite longitudinal grooves 17a. In the illustration of FIG. 11, the two facing lateral faces of the profile bars 10a lie against one another. However, embodiments of the connecting block 45 are also conceivable, in which the latter spaces apart the two profile bars 10a parallel to one another in the manner of a spacer.

(33) It is also conceivable that end-face pins of a further profile bar engage into the undercut longitudinal grooves.

(34) The profile bar 10, 10a described so far, and its connecting element 25 and the connecting block 45 can be altered or respectively modified in a variety of ways without departing from the idea of the invention. Thus it is also conceivable, for example, to use the longitudinal channels 21 or respectively the longitudinal grooves 17, 17a, 18, 18a for fastening other (add-on) parts, such as for example a door element or similar. A profile assembly 100 can also be produced using a connecting element 25, wherein the connecting element 25 has no extensions 32, 33.

(35) In FIGS. 12 and 13, views are shown, rotated through 90° to one another, of an alternative profile bar 10, in which the two longitudinal grooves 17, 18 of the longitudinal groove pairs 20 are constructed as undercut longitudinal grooves to receive sliding blocks, for example. From the end-face view shown in FIG. 12, it can be seen that longitudinal channels 21 are provided on the end face, which are aligned to the longitudinal grooves 17, 18 of the longitudinal groove pairs 20 such that pins can be inserted into the end-face openings 40 formed by the longitudinal channels 21, in an analogous manner to the example embodiment according to FIG. 9, which pins can then engage in longitudinal groves of an identically contoured profile bar which is arranged at a 90° angle to the profile bar which is shown. For this, the longitudinal channels 21 are situated respectively on an intersection line 35 of two longitudinal grooves of longitudinal groove pairs offset by 90° to one another. As in the example embodiment according to FIG. 9, the intersection lines 35 form the longitudinal central axes of the associated longitudinal channels 21.

(36) In the example embodiment according to FIGS. 12 and 13, the pins, which for reasons of clarity are not drawn, which are held in the longitudinal channels 21 by screwing or preferably by a press fit, serve substantially as a security against twisting of two profile bars put together to form a profile assembly.