SK118795A3 - Device for end-to end coupling of two hollow beam sections - Google Patents

Abstract

Device for end-to-end coupling of two hollow beam sections (11, 12), enabling them to adopt several positions relative to one another. The device consists of an insert comprising two parts (2, 3) in the form of a quarter disc, articulated to one another along one of their faces (4, 5), the other face (9, 10) being contained in a plane at right angles to the axis (8) of articulation, the radial cross section of the insert being substantially identical to the inner hollow core of each section (11, 12).

Description

Device for interconnecting adjacent ends of two hollow beam lengths

Technical field

The present invention relates to a device for connecting two lengths of a hollow beam by means of their ends and allowing the lengths thus connected to assume numerous relative positions.

BACKGROUND OF THE INVENTION

In many areas, it is necessary to connect the structural members together by their ends, e.g., supports, uprights, sides of frames, handrails, etc., which structural members are generally formed by extrusions or hollow beams.

One of the means widely used for such joining is a recess portion that engages in a hollow volume at each end of the member to be joined to each other to provide mechanical continuity between the members, the recess portion being attached to each end. The recess portion may be rectilinear when the elements are fixed to one another or may be angular, and in particular may form a right angle when the elements are joined together by ends at a certain angle (provided that the ends have been beveled).

Nowadays more and more constructions are being built on site from standard elements which need only be assembled there, possibly after simple machining. This technique is becoming more popular, first and foremost due to the development of new materials, such as composite materials based on hardened resin, which are easy to machine or cut on site and which

-29938 can only be assembled together with excellent mechanical results by using adhesive.

SUMMARY OF THE INVENTION

The present invention seeks to provide a mounting device for the aforementioned on-site assembly, although its use is not limited to this particular case, since its construction makes it useful for providing assembly means that are relatively versatile, i.e. adapted to cooperate with one another two elements in the form of hollow beams, virtually regardless of their final arrangement after assembly.

To this end, joining the beam together and enabling the present invention provides a device for the adjacent ends of two hollow lengths to assume a plurality of relative positions relative to each other, characterized by a recess portion comprising the device being two quarters of a particular roll, each of the other one of its parts is hinged to the sides and the other side of these

The portions are contained in a perpendicular plane to the hinge axis, the radial section of the recess portion being substantially identical to the section of the hollow interior of each length.

With the apparatus of the invention, when the two disk quarters are coplanar, then it is possible to attach the two adjacent lengths to each other at any angle from alignment in a common plane to a perpendicular. In addition, due to the central hinge between the two portions of the recess portion, it is possible to tilt the plane of one of the lengths so as to be relatively oblique to the plane of the other. this is achieved by some kind of ball joint between two lengths, although it has a limited span, with the final direction of each of the two lengths determined by the plane in which their ends have been cut (perpendicular to their axes, bevel, bevel and chamfered edges, etc. .).

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In a particular embodiment of the invention, the parts are identical, each of which is formed from at least two separate parts which are connected to each other when the two parts are hinged together. More specifically, one of the portions of each portion comprises at least two hook-shaped brackets along its side which is hinged to the other portion, the hook-like brackets being open towards one of the faces of said portion, spaced apart from each other along said side and comprising in plane with the gaps between the holders, at least one grip in said face to receive a second piece which is similarly provided with a hook-like holder, the opening of said hook-like shape being outwardly from said face. Thus, the recess part comprises four elements, easily assembled together, particularly by means of an adhesive and exceptionally easy to produce by molding without any need to use complex molds having cores to retain the hinge passageways, and no need to perform machining operations for trimming purposes where such operations always cause mechanical weakness in parts made of composite materials. The assembly of four elements for said recess portion is particularly adapted to the recess portion which is made of a reinforced plastic material.

Other features and advantages of the invention will be apparent from the description of the two embodiments given below as examples.

Overview of the figures in the drawing

References are made to the accompanying drawings, of which:

Fig. 1 is an overall schematic view of the device of the present invention,

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Fig. 2 - represents a perceived view of a preferred embodiment half of the recess portion of the invention,

Fig. 3 to 6 are fragmentary cross-sectional views of the hinge between the various parts forming the recessed portion of the invention, the parts of which are in common plane in FIG. 3 and 4 and at right angles to FIG. 5 and 6,

Fig. 7 is a cross-sectional view showing how the two lengths of the beam are interconnected by means of a recessed part of the invention in which the two hinged parts are in a common plane,

Fig. 8 - It represents a corresponding sectional view showing how two beams are connected together by means of the recess part of the invention when the two parts forming the recess device are perpendicular and

Fig. 9 and 10 are two sectional views of the embedding portion of the invention in lines IX-IX and X-X of FIG. 7th

Examples

Fig. 1 is a diagram showing the device of the invention for the purpose of illustration as main features. The illustrated recess portion 1 comprises two portions 2 and 2, which are generally in the form of respective quarters of a disk with a radius R and a thickness θ. Each of these quarters rolls. 2 and 1 is provided along one of its sides 4 or 5 with a tooth 6 or 7 which penetrate each other when the parts are put together and has a hinge pin 2 extending therethrough. The pin 2 extends in a radial direction and is perpendicular to the other sides 9 and 10 of the two disk quarters 2 and 2. Thus, when the two disk quarters rotate on the pin in relation to each other,

-59938 sides i and 10 move in a common plane.

Referring to FIG. 7, two lengths 11 and 12 of a hollow beam with a rectangular cross-section can be seen, with the lengths shown in cross-section on a median plane parallel to their major faces and perpendicular to their edges 11a and 12a. said lengths being assembled together end to end to form a corner of the frame in a plane parallel to the cutting plane. The recess portion of the invention is disposed within the inner volume of said lengths and is positioned flat, i. its two parts 2 and 2 lie in the same plane, with the pin B lying massively on the plane of the bevel 13 of each of the lengths 11 and 12.

The radius R of the recess portion is substantially L of the hollow interior of each of the lengths 11, and the recess portion e is naturally substantially equal in width and thickness equal to the thickness of said hollow interior. This assembly is fixed together by means of an adhesive as between lengths 11 and 12 in their plane of connection 13.

also between each of the recess portions 2 and 3 and the insides of the lengths 11 and 12 and possibly also between the tooth B and 7 so as to lock the hinge parts 2 and 3.

together to form a solid block.

Fig. 2 illustrates a particular embodiment of the recess portion 1 of the present invention and, more specifically, illustrates one half, the other half being exactly the same as explained below. Suppose that FIG. 2 shows part 2 of the recessed part of the invention. This part comprises a first part 20 of thickness e, which is defined by side B and a circular arch, side 4 carries two holders 21 and 22 having a hook shape with the open sides of these hooks facing the upper face 23 of the part 20. Two holders 21 and 22 are spaced apart from one another along side 4, and in plane with the gaps between them, part 20 comprises a recess 24 that forms a housing for the second part 12, the thickness of which at least partially occupies this recess. The second panel 30 also has a hook-shaped holder 31 and when the panel 30 is appropriately positioned in the recess 24, then

-69938, the hook is facing away from the face 23 of the part 20. It can be seen that the inner surfaces of the hooks 21 and 22 and the inner surface of the hook 31 all have a profile identical to that of their respective outer surfaces 26 and 33.

The second part 1 consists of two parts which are identical to the parts 20 and 30 shown in FIG. 2 and the hinge between the two parts is formed by engagement of their respective hook-shaped holders as shown in FIG. From this figure, it is understood that in order to cooperate with part 2, part 3 must be positioned in a position that is obtained by rotating part 2 by 180 ° about the axis na in FIG. 7th

Fig. 3 and 4 are partial cross-sectional views of lines III-III and IV-IV in FIG. 7, showing how the holders 21, 22 and 31 cooperate on each of the two parts when the parts are hinged together.

When the part 2 is caused to rotate on the pivot relative to the part 1 so that it extends perpendicularly downwardly relative to it, the holders 21, 22 and 31 assume the mutual disposition as shown in FIG. 5 and 6. In these figures, it can be understood that complementary profiles 25, 18, 32 and 33 come into contact with each other and form an abutment that prevents further relative rotation on the pivot between the parts. The rotation occurs around the end axis of the hooks 22 of the part 2 and the hook 31 of the part 1, whose axes are flush when the parts 2 and 3 are assembled together, thereby embodying the hinge pin 6. It can be seen that in this embodiment it is impossible to rotate the part 2 upwards relative to the part 3, but this is not a problem, since an equivalent result can be obtained by flipping the recess part.

Fig. 8 shows two beams together as shown in a picture parallel to their edges 11a and 12a.

The two beams are provided with respective bevel cuts defining the plane of the connection 14 such that the beams are perpendicular to each other and are

The assembly is fixed by means of an adhesive, first between the sharp parts in the plane 14 and secondly, between the recess part and the interior of the beams, and possibly also between parts 2 and 3, where they engage each other with their hooks.

Fig. 9 and 10 are cross-sections on lines IX-IX and X-X in FIG. 7, depicting the two portions of the recess portions, each comprising its own two portions 20 and 30. Each of the portions 20 and 30 constituting the recess portion is made as a thin box to provide the required mechanical strength and stability and are assembled together either at the factory. by means of an adhesive between the two parts 20 and 30 after the hook-shaped brackets of the two parts 2 and 1 have been engaged or otherwise assembled together in place, either prior to mounting the two supports together or otherwise during it.

The present invention is not limited to the embodiments described above. In particular, each of the portions 2 and 2 constituting the recess portion may be formed from an individual part 20 with a certain plurality of holders such as 21 and 22 and a certain plurality of parts such as 30 arranged in recesses such as 24 having as much as a gap between holders 21 and 22.

Claims (5)

An apparatus for interconnecting adjacent ends of two lengths (11, 12) of a hollow beam and allowing these lengths to assume a plurality of relative positions, characterized in that it is formed by a recess portion comprising two quarters (2, 3) in the form of quarters each of said parts being hinged to the other along one of its sides (4, 5) and the other sides (9, 10) of said parts being contained in a plane perpendicular to the axis of the hinge (8), wherein a radial section (R), e) of the recess portion is substantially identical to the cross section of the hollow interior (L, e) of each length (11, 12). Device according to claim 1, characterized in that the parts (2, 3) are identical, each of which is formed of at least two separate parts (20, 30) which are connected to each other when the two are parts hung together. Device according to claim 2, characterized in that one of the parts comprises at least two holders in its side (4), which hooks are made of faces (23) of said part, located in gaps one from the other along said side (4) and comprising in alignment with the gaps between the holders (21), characterized by (20) each hook-shaped part (21, 22) hinged to the other open towards the part, s (2), along the part, one and the other; 3 / 22) at least one grip in said face (23) for receiving a second part (30) which is also provided with a hook-like holder (31) with a hook-like opening facing away from said face (23). -9- 9938 A device according to claim 3, characterized in that the openings of the hook-like holders (21, 22, 31) of one of the parts are shaped to receive the ends of the hooks of the other part and have an internal profile (25, 32) which is identical to the profile. their outer surfaces (26, 33). Device according to any one of claims 2 to 4, characterized in that the parts (20, 30) of the part (2), after their hooks have been engaged with the hooks of the second part (3), are held together by means of an adhesive.