PROFILE BAR AND PROFILE CONNECTION

Abstract

Profile bar (2) preferably an aluminum alloy, with at least one undercut longitudinal slot (6) which has a slot bottom (8) and extends in the direction of the longitudinal extent (L) of the profile bar (2), and of which the longitudinal slot opening (13) opposite the slot bottom (8) in the direction of a longitudinal slot height (H), perpendicular to the longitudinal extent (L) of the longitudinal slot (6), is bounded by two undercut sections (14, 15) spaced apart by the longitudinal slot opening (13), wherein a longitudinal slot opening width (b), measured perpendicular to the longitudinal extent (L) of the longitudinal slot (6), is less than a maximum longitudinal slot width (b.sub.n) in a longitudinal slot region located below the undercut sections (14, 15) as seen along the longitudinal slot height (H), wherein a longitudinal duct (9) extending parallel to the longitudinal slot (6) is provided below the slot bottom (8), which duct is spaced from a section (7) forming the slot bottom (8), which is formed as a penetration section and/or forming section made of profile bar solid material, which is penetrable by a connector screw (4) in the direction of the longitudinal slot height (H) for establishing a form-fit with the profile bar (2), and/or into which, for establishing a form-fit with the profile bar (2), a connector screw (4) can be formed in the direction of the longitudinal slot height (H) in such a way that profile bar solid material of the forming section is displaceable into the longitudinal duct (9).

Claims

1. Profile bar (2) preferably an aluminum alloy, with at least one undercut longitudinal slot (6) which has a slot bottom (8) and extends in the direction of the longitudinal extent (L) of the profile bar (2), and of which the longitudinal slot opening (13) opposite the slot bottom (8) in the direction of a longitudinal slot height (H), perpendicular to the longitudinal extent (L) of the longitudinal slot (6), is bounded by two undercut sections (14, 15) spaced apart by the longitudinal slot opening (13), wherein a longitudinal slot opening width (b), measured perpendicular to the longitudinal extent (L) of the longitudinal slot (6), is less than a maximum longitudinal slot width (b.sub.n) in a longitudinal slot region located below the undercut sections (14, 15) as seen along the longitudinal slot height (H), wherein a longitudinal duct (9) extending parallel to the longitudinal slot (6) is provided below the slot bottom (8), which duct is spaced from a section (7) forming the slot bottom (8), which is formed as a penetration section and/or forming section made of profile bar solid material, which is penetrable by a connector screw (4) in the direction of the longitudinal slot height (H) for establishing a form-fit with the profile bar (2), and/or into which, for establishing a form-fit with the profile bar (2), a connector screw (4) can be formed in the direction of the longitudinal slot height (H) in such a way that profile bar solid material of the forming section is displaceable into the longitudinal duct (9).

2. Profile bar according to claim 1, wherein the section (7) has a material thickness measured in the direction of the longitudinal slot height (H) of less than 5 mm.

3. Profile bar according to claim 1, wherein the longitudinal slot (6) is spaced in the direction of the longitudinal slot height (H) from a central duct (11) of the profile bar (2) extending in the direction of the longitudinal extent (L) of the profile bar (2), wherein the material thickness (M) of the section (7) measured in the direction of the longitudinal slot height (H) is smaller than the distance between the longitudinal duct (9) and the central duct (11), measured in the direction of the longitudinal slot height (H).

4. Profile bar according to claim 1, wherein the longitudinal duct (9) has a rectangular cross-sectional contour and/or wherein the cross-sectional contour of the longitudinal duct (9) has a smaller extent in the direction of the longitudinal slot height (H) than perpendicularly.

5. Profile bar according to claim 1, wherein the profile bar (2) comprises four side surfaces, wherein respective two neighboring ones of the side surfaces are arranged rectangularly to one another and wherein on at least two side surfaces an undercut longitudinal slot (6) is provided with assigned longitudinal duct (9) as well as section (7) arranged between longitudinal slot (6) and longitudinal duct (9).

6. Profile connection with a first profile bar according to claim 1, wherein the section (7) is penetrated in the direction of the longitudinal slot height (H) of the assigned undercut longitudinal slot (6) by a connector screw (4) or in wherein the section (7) a connector screw (4) is formed in the direction of the longitudinal slot height (H) of the assigned undercut longitudinal slot (6) in such a way that profile bar solid material is deformed into the longitudinal duct (9).

7. Profile connection according to claim 6, wherein the connector screw (4) with its male thread (17) is screwed to a sliding block (19) arranged in the longitudinal slot (6), which is interspersed by the connector screw (4) in the direction of the longitudinal slot height (H) of the longitudinal slot (6).

8. Profile connection according to claim 6, wherein a component (3) is secured to the first profile bar (2) by means of the connector screw (4).

9. Profile connection according to claim 8, wherein the connector screw (4) is arranged to penetrate a sleeve (16) fixed in the longitudinal slot (6) of the second profile bar (2).

10. Profile connection according to claim 6, wherein the connector screw (4) comprises a cone section for laterally supporting on a circumferential edge of a created opening (20) or depression in the section (7) by means of the connector screw (4) by punching.

11. Profile connection according to claim 6, wherein the connector screw (4) comprises at its front end a flat front face for forming and/or penetrating the section (7), or wherein the connector screw (4) comprises in the region of its front end a front-faced, cylindrical opening (20), which is circumferentially limited by annular forming means (21) for facilitated forming in and/or penetration of the section (7).

12. Profile connection according to claim 11, wherein the forming means (21) are formed as cup point.

13. Profile bar according to claim 2, wherein the material thickness is between 0.3 mm and 4 mm.

14. Profile bar according to claim 3, wherein the longitudinal slot (6) is spaced by a solid material section (12) in the direction of the longitudinal slot height (H) from the central duct (11) of the profile bar (2) extending in the direction of the longitudinal extend (L) of the profile bar (2).

15. Profile bar according to claim 5, wherein all the four sides surfaces have the undercut longitudinal slot (6) provided with the assigned longitudinal duct (9) as well as the section (7) arranged between the longitudinal slot (6) and the longitudinal duct (9).

16. Profile connection according to claim 6, wherein the connector screw (4) comprises a male thread (17).

17. Profile connection according to claim 8, wherein the component (3) comprises a second profile bar comprising an undercut longitudinal slot (6) at a right angle to the first profile bar (2).

18. Profile connection according to claim 10, wherein the cone section is at the end of the connector screw (4), and is formed as a morse taper with a cone angle between the longitudinal central axis of the screw and cone skin surface of between 0.5° and 10°.

19. Profile connection according to claim 12, wherein the cup point is in a radial plane relative to the longitudinal extent of the connector screw (4).

20. Profile connection according to claim 12, wherein the cup point comprises a wave profile or saw-tooth profile.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Further advantages, features and details of the invention result from the exemplary embodiments preferred of the following description and from the drawings.

[0041] The drawings show in:

[0042] FIG. 1 and FIG. 2 two different views twisted by 90° relative to one another of a profile connection comprising at least one profile bar configured according to the concept of the invention,

[0043] FIG. 3 and FIG. 4 detailed views of FIG. 1 or 2, respectively,

[0044] FIG. 5 punching waste resulting from the creation of through-openings in the penetration section,

[0045] FIG. 6 an optional configuration of a connector screw, and

[0046] FIG. 7 a highly schematic illustration of a profile bar in a longitudinal sectional view (only upper half), wherein the section between the longitudinal slot and the longitudinal duct is configured as forming section or is only used as forming section—here, no solid material of the section 7 is punched by the connector screw, but merely deformed into the longitudinal duct 9.

DETAILED DESCRIPTION

[0047] FIGS. 1 and 2 show a profile connection 1 comprising a longitudinal (first) profile bar 2 which is configured as extruded profile bar made of an aluminum alloy. Further, the profile connection 1 comprises a component 3 which also is configured as profile bar 2 (second profile bar) oriented perpendicular to the first profile bar 2.

[0048] The profile bar 2 and the component 3 are fixed to one another by means of a connector screw 4 exemplified comprising a screw head 5 here.

[0049] The screw intersperses a section 7 to be described later in detail in the direction of the longitudinal height H of an undercut longitudinal slot 6, which section forms a slot bottom 8 of the undercut longitudinal slot 6 as well as a longitudinal duct 9 provided below the undercut longitudinal slot 6 spaced apart from the undercut longitudinal slot 6. The section 7 can be configured as penetration section according to a first alternative, which is penetrable or punchable, respectively, by a connector screw to create a through-opening between the longitudinal slot and the longitudinal duct. Upon comparatively slight tightening of the connector screw, it is possible to not penetrate or punch, respectively, the penetration section, but merely form it in such a way that a depression is created and material of the section is (in)dented or formed, respectively, into the longitudinal duct. It is also conceivable, according to an alternative embodiment, not to design the section 7 as penetration section from the first, but only as forming section which enables the forming of a connector screw in the direction of the longitudinal height of the longitudinal slot in such a way that an indentation or depression, respectively, results in the forming section and material of the forming section is indented or formed, respectively, into the longitudinal duct.

[0050] It can be seen from FIG. 2 on the right that a connector screw 4 (the profile connection 1 contains exemplified two such connector screws 4) intersperses an opening 10 introduced by means of the connector screw 4 into the penetration section 7 and protrudes into the longitudinal duct 9. The circumferential edge of the opening 10 supports the connector screw 4 laterally so that forces oriented perpendicular to the longitudinal extent of the component 3 can optimally be received.

[0051] Further, it can be seen from FIG. 1 that the (first) profile bar 2 seen in the cross-sectional view comprises four identical side surfaces, wherein the cross-sectional contour is a rectangle. An identically configured combination of undercut longitudinal slot 6 and longitudinal duct 9 spaced apart by a section 7 here exemplified as penetration section is assigned to each side surface.

[0052] Furthermore, it can be seen from FIG. 1 that the profile bar 2 comprises a central duct 11, whereof the longitudinal duct 9 is spaced apart by a solid material section 12 in the direction of the height extent H of the undercut longitudinal slot 6.

[0053] A longitudinal slot opening 13 of the undercut longitudinal slot is limited by two undercuts 14, 15 opposite to one another which define the width b of the longitudinal slot opening 13. A maximum longitudinal slot width b.sub.n is achieved in a region below the undercuts 14, 15. The maximum longitudinal slot width b.sub.n and the longitudinal slot height extent H oriented perpendicular thereto are oriented perpendicular to the longitudinal extent L (see FIG. 2 of the extruded profile bar 2).

[0054] It can be seen from FIG. 2 that each connector screw intersperses a sleeve 16 and is supported with the screw head 5 on the side facing away from the first profile bar 2. The sleeve 16 is received in an undercut longitudinal slot 6 of the component by means of a male thread or other for example bayonet-like fixing means, for example. The connector screw 4 respectively intersperses the sleeve 16 oriented perpendicular to the longitudinal extent L of the profile bar 2 and is screwed to the female thread 18 of a sliding block 19 (counter bearing part) with the male thread 17 thereof, which block is received in the undercut longitudinal slot 6. The sliding block 19 in the mounted state (see FIG. 2 on the right) is interspersed by the connector screw 4, which additionally protrudes into the section 7 and intersperses the section preferably also into the longitudinal duct 9.

[0055] An optional embodiment of the connector screw 4 is shown in FIG. 6. The screw comprises exemplified a screw head 5.

[0056] It is shown merely exemplified that an opening 20, here a blind opening is provided in a front end, which is surrounded by forming means 21, here in the form of a continuous cup point which is arranged a circumferentially closed circumferential wall 22 on the end side. In an alternative embodiment, which can be manufactured in a simplified manner, also a flat front end, i.e. an end without opening 20 or with an opening 2 with smaller axial extent can be provided.

[0057] In FIG. 6, a drive 23 opposite the front end or facing away therefrom is not shown. The drive can be seen in FIG. 2 for example.

[0058] FIG. 3 shows a detail of a completed connection or the detail of FIG. 1, respectively, which corresponds to the right connector screw connection according to FIG. 2.

[0059] The sleeve 16 in the longitudinal slot 6 in the component 3 (second profile bar) can be seen. This sleeve 16 is configured without female thread. The screw head 5 of the connector screw 4 is supported on the sleeve 16 on the front face, wherein the connector screw 4 is screwed to a sliding block 19 in the undercut longitudinal slot 6 with the male thread thereof. To that end, the connector screw 4 intersperses the longitudinal slot opening 13. Further, the connector screw 4 intersperses the sliding block 19 in the direction of the height extent H of the undercut longitudinal slot 6 and intersperses an opening 20 created by means of the connector screw 4 in the section 7 to the longitudinal duct 9. Preferably, the section 7 is configured as punching diaphragm which can be punched. The section has a material thickness M of about 1.5 mm in the exemplary embodiment shown.

[0060] The reject 24 (slug) resulting from the introduction of the opening 20 can be referred to as punching waste, as the opening 20 is created in a lower region of the opening by punching the reject 24. The reject 24 is located within the longitudinal duct 9, into which the connector screw 4 protrudes. It can be seen that the distance between the central duct 11 and the longitudinal duct 9 is greater than the material thickness M of the penetration section 7. However, this is not required. The width extent of the longitudinal duct 9 comprising a rectangular cross-sectional contour corresponds approximately to the width b of the longitudinal slot opening 13. In an embodiment with section 7 configured as forming section or with connector screw slightly tightened upon realization of a penetration section instead of a forming section, no reject (slug) results—rather, in this case, as shown in FIG. 7, only section material (solid material) of the section 7 is deformed or indented, respectively, into the longitudinal duct 9.

[0061] Here, FIG. 7 shows an upper half of a first profile bar in a longitudinal sectional view, wherein a connector screw 4 is shown highly schematic, which, in analogy to FIG. 3 in a further component, can be fixed to in particular a second profile bar. The connector screw intersperses a sliding block 9 in the undercut longitudinal slot 6. The connector screw 4 indents the section 7 namely in the direction of the height extent H of the longitudinal slot 6 into the longitudinal duct 9.

[0062] FIG. 4 shows the situation on the left in FIG. 2 in an enlarged detail. In FIG. 4, the connector screw 4 is not finally mounted, but still rests on the section 7 configured as penetration section, which is configured as punchable punching diaphragm. The connector screw 4 already intersperses a sleeve 16 received in an undercut longitudinal slot 6 of the component 3 in the direction of the height extent H of the undercut longitudinal slot 6 of the first profile bar 2 and is screwed to the sliding block 19 inside the undercut longitudinal duct 6 and intersperses this region so that a front end of the connector screw 4, which is provided (exemplified) with forming means 21, abuts the penetration section 7. By twisting the connector screw 4 in the circumferential direction, the screw is advanced into the solid material of the penetration section 7 in the direction of the longitudinal slot height extent H and in such a way that the reject illustrated in FIG. 5 results, which then falls into the neighboring longitudinal duct.