FR2643951A1 - System for assembling sections - Google Patents

Abstract

The invention relates to a system for assembling sections and, in particular, crossmembers and uprights. This system is characterised in that it comprises a connector 1 having a prismatic part 3 ending, on one of its bases, in a prismatic surface 5 the generatrices of which are perpendicular to those of the said prismatic part 3 and which matches the shape of a part of the external surface of the first M0, M1 of the said sections to be assembled, on which part it is intended to be fixed by screwing into a core N0, N1 housed with a small clearance in the said first section M0 M1, the said prismatic part 3 being extended opposite the said prismatic surface 5 by a profiled assembly member 4 over which the second T of the said sections to be assembled is fitted. Application to the production of display stands and stands for shop windows.

Description

 The present invention relates to a system for the assembly of profiles which is intended, in particular, to assemble sleepers and uprights of the type widely used to produce, for example, exhibition stands, showcases and similar facilities, it being understood that the terms "sleepers" and "uprights", used here for reasons of convenience, do not necessarily refer to horizontal or vertical elements, respectively.

 Many embodiments of such assembly systems are known, but these are generally complicated and difficult to assemble and dismantle, which entails the costs associated with many hours of work by qualified personnel, so that nothing can be done. to say that their aesthetic aspect often leaves something to be desired and that their solidity is not always satisfactory.

 Also, the object of the invention is to provide an assembly system that overcomes the aforementioned drawbacks of known devices and is both simple, easy to assemble and disassemble, aesthetic and yet solid.

 According to the invention, this object, and others which will appear subsequently, such as the realization of a device allowing a large number of assembly combinations, are achieved thanks to a system of the kind specified above which is characterized. in that it comprises a coupling having a prismatic portion terminated on one of its bases by a prismatic surface whose generatrices are perpendicular to those of the aforesaid prismatic part and which matches the shape of a part of the outer surface the first of the profiles to assemble, which is generally an amount, on which the fitting in question is intended to be fixed by screwing into a core housed at low play in the first profile or amount in question, the prismaque portion of the aforementioned connection being extended the opposite of its prismatic surface by a profiled assembly member on which comes the second of the profiles to assemble which is generally a tr downpour.

 It will be understood that the combination of a coupling on one side of which comes to grip the cross to assemble and which fits tightly on the other side on the upright to assemble, and an inner core to the amount on which this connection is hooked by screwing, provides an original solution to the problem. In particular, the combination of shapes of the connector and the amount on which it is applied leads to a smooth and continuous connection which produces a very satisfactory aesthetic impression.

 In the particular important case where each of the profiles to be assembled is a profiled & square cross section, the prismatic surface of the connector of the invention is a symmetrical rectangle dihedron whose planes exactly overlap two adjacent sides of the profile on which it is applied.

 According to an advantageous embodiment of the invention, the profiled assembly member of the connection specified above which is intended for mounting the cross member, comprises radial fins whose outer edges are exactly circumscribed by the inner surface of the crosses, so that the fitting of the latter is practically without play.

 Advantageously, these radial fins of the coupling extend from an axial tube in which the screw which fixes the fitting in question passes on the corresponding crossbar, while the crossbar is secured to this connection by a screw which is screwed radially. in this tube.

With regard to the amounts and their cores ,. it is possible to use a hollow primary profile 9 square section, the corresponding primary core being a solid square section prismatic body that can be inserted axially with a small clearance in the amount or primary section
In order to multiply the number of assembly possibilities of the system according to the invention, and in particular in order to obtain tee feeders at 45, it is also possible to use secondary posts, each of which is a hollow secondary section whose section is a part a square delimited by a diagonal plane and a plane perpendicular to the latter which passes substantially through the middle of a face, the corresponding secondary core being a solid prismatic body which has the same section and which can be inserted axially with a weak Game in the amount or secondary profile. The width of the solid faces of this secondary section is preferably equal to that of the faces of the primary section.

 Preferably, the secondary section specified above has at its ends inwardly folded longitudinal tabs whose geometrical extensions, that is to say not materialized in reality, are at right angles to each other and which are intended to be applied to the corresponding faces of another amount opposite.

 In the case where the position of two connectors mounted side by side on two adjacent uprights requires, their prismatic parts advantageously comprise at least one cutaway.

 In addition, the system according to the invention may also comprise 180 'connections formed by a solid prism whose cross section is an isosceles right triangle and which includes the threads and holes required 9 fixing to the uprights and mounting on it one or more connections, the width of the two equal faces of this prism being preferably equal to that of the faces of the primary amounts.

 Finally, note that the system according to the invention is particularly suitable for the manufacture of frames and pre-assembled windows.

The following description, which is not limiting in nature, will make it possible to understand how the present invention can be put into practice. It must be read in conjunction with the attached drawings, among which:
FIG. 1 shows an exploded perspective view of the basic elements of the assembly system according to the present invention.
FIG. 2 represents a cross-sectional view of a node of this system; and
FIG. 3 shows, in highly schematic sectional view, various assemblies that can be made with this system
As can be seen in FIG. 1, the basic conformation of the system according to the invention is intended to fix at least one horizontal crossmember T on a primary vertical upright Mo, these structural elements being constituted by square cross section profiles. which are preferably made of a suitable aluminum alloy.

 This assembly is made, for the most part, by means of a primary core N0 inserted substantially without play in the amount No which it marries the inner form, and a special connection which is designated as a whole by the reference 1 and on which comes the transom T.

The connection t is symmetrical with respect to two perpendicular planes that intersect along an axis X-X ', and it is composed, in one piece, and on both sides of a plane 2 perpendicular to the X axis -X ', a prismatic portion 3 and an assembly member 4.,
The prismatic portion 3 has a square cross section whose circumference is identical to that of the cross section of the cross member T. At its free end opposite the plane 2, it ends in a dihedral rectangle hollow and symmetrical 5 whose edge 6 is perpendicular to the axis X-X ', cut the latter, and passes through two edges of the prism 3 a square section.

 The connecting member 4 of the coupling 1 comprises an axial tube 7 which extends outwards along the axis XX 'from the plane 2 and which is provided along its entire length with four radial fins 8. are angularly equidistant, and therefore distant from each other by 90 ', they extend radially towards the edges of the prismatic part 3, and their length is such that the distance between the free ends of two opposite fins is very slightly less than the length of the inner diagonal of the crossbar T.

As a result, the cross member T can be fitted on the assembly member 4 without clearance, the cross fins 8 of the latter being received in the corners of the square section profile of the cross member. Given that the cross section of the prismatic portion 3 of the coupling 1 is identical to that of the cross member
T, the four faces of this prismatic portion and of this cross are exactly in the extension of one another, without any recess or interstice, which produces an extremely satisfactory aesthetic effect.

 To make the crossbar T integral with the connection 1, it could be envisaged a press fitting, or even the installation of a leaf spring between these two members, but this connection is more rigid if it is made by means of a screw 9 passed radially in the middle of a face of the crossbar T and screwed into the tube 7.

 On the other hand, and for obvious geometric reasons, it is clear that the dihedron 5 of the prismatic part 3 of the connection 1 exactly covers two adjacent faces of the amount Mo, without interstice or overflow, which gives, here too, a Extremely aesthetic appearance.

 The connection at this point is provided by an axial screw 10 which is pushed from the outside into the finned tube 7 of the assembly member 4, whose head is supported on a shoulder 11 formed at the bottom of this tube, as seen in Figure 2, which passes through a hole formed around the corresponding edge of the primary amount Mo, and which is screwed into the solid core No inserted in the latter.

 In order to increase its possibilities, the assembly system according to the invention may also comprise, in addition to one or more of the primary amounts Ni. described above, with their cores No, at least one secondary amount N1 in which is inserted at least one secondary core Ni.

 As can be seen in FIGS. 1 and 2, the secondary upright MI1 is a hollow section open on one side which has two equal wings at right angles 20a and 20b, the first of which is extended by a tab 21 folded in relation to it. 135 'inward, and the second of which extends by a wing 22 folded 90-inward, which continues in turn in a narrow band 23 folded 45', always inward, and finally by a tab 24-folded relative to the latter at right angles inwards.

 As seen in Figure 2, the tab 21 of the amount M1 rests, in the mounted position, on a face of a B0 amount, the corresponding edges of these amounts being against each other, as indicated in 25. In other words, the faces 26 and 27 of these two uprights N, and No then form, on either side of the common edge 25, a dihedral angle equal to go. + 45- = 135 *.

 As for the dimensions of the wings 20a, 20b and 22 of the amount N ,, they are such that, in this same mounted position of FIG. 2, the wing 22, supposed to be extended towards the facing face, 28, of the amount No, would cut the latter along its longitudinal axis 29. A simple calculation shows that this corresponds to a width of the wings 20a and 20b - equal to each other, remember it - substantially equal to that of the faces of the primary amount Mo, the ratio being in fact 1 , 06. The leg 24 which ends the amount N, this side then rests on the face 28 of the amount that it caps.

 The secondary core N, which is housed in the corresponding amount N, fills the space between the latter and the amount that it covers. In cross-section, it thus presents the shape of an isosceles right triangle extended on the other side of its hypothenuse by another isosceles-smaller rectangular triangle, the hypothenuses of these two triangles being perpendicular to each other. Stepped recesses allow the passage of the legs 21 and 24.

Amounts No and M1 with their respective cores
No and N1 are secured together by screws 30 which are screwed, for example, as seen in Figure 2, from a core N1 through a core No through the walls of the corresponding amounts, and whose heads 6 'support on a shoulder 31 formed in the body of the core N1.

 These screws 30, just like the screws 9 and 10 of the connectors 1, are advantageously steel screws provided with a female head and hex head and which can be mounted and dismounted by means of an L-shaped wrench with hexagonal cross-section. a well known genre.

 The connectors 1 are mounted on the secondary uprights or as they are on the primary amounts Mo.

However, their prismatic parts must sometimes have one or two cut faces on the side of the adjoining connections, as can be seen in FIG. 2. Thus, the connections 1 'and 1 "mounted on consecutive edges of a amount Mo and Ni amount, and whose axes XX 'form between them an angle of 45, must have cut edges 32 in contact with each other having an angle of 45/2 = 22 *. side, the connection 1 'is free and has no cutaway.

 We see in Figure 3 various combinations of primary amounts Mo and secondary M. which allow to obtain all the departures of crossings that we want, from 45 to 45 '. In this figure. indicated by arrows F the start of the connections and by arrows F 'the screws 30 which join together the amounts used. Other combinations are obviously possible, and it is within the abilities of those skilled in the art to imagine them based on the simple principles that have been described above.

 In addition, it is also possible to provide amounts M. ' symmetrical amounts Mi relative to the plane of the wing 20a amounts Ni, the corresponding cores are also symmetrical. A combination formed of an amount Ni and a symmetrical amount Ml 'is shown at the bottom of the left-hand part of FIG.

 Other possibilities are still open thanks to the connector 180 which is also shown in Figure 1 and which is designated by the reference 40. This connection is a solid prism whose base is an isosceles right triangle perpendicular to its edges, and which, especially for aesthetic reasons, ends at the top with a cut -41 to 45- extending upwards from the large face of the prism. The two faces of the connector 40 which are equal and symmetrical with each other have a width equal to that of the faces of the uprights No or wings 20a, 20b of the uprights M1.

 Coninie it is seen in Figure 2, this connector 40 has holes 42 which allow to fix it by its small faces by means of screws on a mo core. It also has on its large face threaded holes 43 which allow to mount on it connectors 1.

 Finally, feet or "cylinders" 50. screwed into the bottom of the cores No allow to adjust the height of the amounts No when they rest on the ground through these feet.

Claims (10)

- Claims 1. System for assembling profiles, characterized in that it comprises a connection <1) having a prismatic portion (3) terminated on one of its bases by a prismatic surface (5) whose generatrices are perpendicular to those of said prismatic portion (3) and which marries the shape of a portion of the outer surface of the first (Mo, M1) of said profiles to be assembled, part on which it is intended to be fixed by screwing into a core (N0 , N1) housed at low clearance in said first section (No, M), said prismatic portion (3) being extended opposite said prismatic surface (5) by a profiled assembly member (4) on which comes s the second (T> of said profiles to assemble. 2. System according to claim 1, characterized in that each of said profiles to be assembled (No, Ml, T) is a square cross-sectional profile, said prismatic surface (5) being a symmetrical rectangle dihedron whose planes exactly overlap two adjacent sides of said first profile (Mo, M1). 3. System according to any one of claims 1 and 2, characterized in that said profiled assembly member <4) comprises radial fins (8) whose outer edges are exactly circumscribed by the inner surface of said second section ( 6). 4. System according to claim 3, characterized in that said radial fins (8) of the connector (1) extend from an axial tube (7) in which passes a screw (10) which fixes said coupling ( 1) on the corresponding profile CMo, Mol). 5. System according to any one of claims 1 to 4, characterized in that the profile (T) fitted on said connecting member (4) is secured by a radial screw <9). 6. System according to any one of claims 1 to 5, characterized in that said first section (No) is a hollow primary profile of square section and that the corresponding primary core (E0) is a solid prismatic body ss square section can be inserted axially with a low play in said primary section (no). 7. System according to any one of claims 1 to 5, characterized in that said first section (Ml) is a hollow secondary section whose section is a part of a square delimited by. a diagonal plane and a plane perpendicular to the latter which passes substantially through the middle of a face, the corresponding secondary core (N1> being a solid prismatic body which has the same section and which can between axially inserted with a weak Play in said secondary profile (no). 8. System according to claim 7, characterized in that said secondary section (x1) comprises at its ends longitudinal tabs (21, 24> folded inwards whose geometric extensions intersect at right angles. 9. System according to any one of claims 1 to 8, characterized in that the prismatic portion (3> of said connector (1) comprises at least one cutaway (32). 10. System according to any one of claims 1 to 9, characterized in that it further comprises at least one 180 'connection (40) consisting of a right prismatic body whose base is an isosceles right triangle.