FR2593862A1 - Locking component for devices for assembling a hollow section to another element at an angle and assembly devices comprising this locking component - Google Patents

Abstract

The invention relates to a locking component for devices for assembling a hollow section to another element at an angle. It extends to assembly devices comprising this locking component. This locking component, of adapted shape to allow it to be fitted inside the section, comprises a hollow journal 11, housed in a recessed part 2, 6 and mounted so as to pivot about an axis X,X'. This journal is provided, on its peripheral wall, on the one hand, with a slot 12 allowing a retractable peg 13 to be passed and, on the other hand, with a projecting stud 16. Inside this journal 11 there are arranged elastic means 15 allowing the peg 13 to project with respect to one face 1b of the locking component. This component also comprises displacement means 7, 8 adapted for actuating the stud 16 so as to cause a rotation of the journal 11 in the direction for bringing the section close to the second element.

Description

HANGING PIECE FOR ANGLE JOINING DEVICES
OF A HOLLOW PROFILE WITH ANOTHER ELEMENT AND DEVICES
ASSEMBLY COMPRISING THIS LOCKING PART
The invention relates to a blocking piece for devices for joining at an angle two elements.

It extends to assembly devices comprising this blocking piece and, more particularly, to devices allowing the assembly of a first hollow profile bearing end against a face of a second profile or devices allowing a corner connection between two profiles cut at an angle.

 Various devices make it possible, to carry out such assemblies, to bring the faces to be assembled closer to two elements, to put them in abutment and then to tighten them one against the other. Depending on the type of assembly to be carried out (end-to-end assembly or assembly pressing end to end against a face), these devices are of a completely different design.

 A device enabling the connection of an upright and a cross-member is described in particular in French patent applications No. 78.13276 and 82.08151.

This device comprises a slide provided with means for hooking to the cross member (retractable pin), a yoke comprising means for fixing to the upright, and means for ensuring the relative longitudinal displacement of the slide inside the yoke, in the direction of approach of the crosspiece to the upright. The means of fixing the clevis on the upright are either rigidly fixed on the clevis (BF n o 78.13276), or carried by a hinge connected to the clevis and articulated on the latter around an axis perpendicular to the assembly plane . In this second case, this device makes it possible to assemble at any angle. In both cases, the crossing of the crosspiece against the upright is achieved by means of a pressure screw screwed into a tapped hole inclined at 450, formed in one face of the yoke, this screw abutting against an inclined cheek located at the front of the slide. If these devices
Sot de mie in quick and simple simple and allow to ensure a good joining of the two profiles, their major drawback comes from the inclination of the axis of the tapped hole allowing the approach of the crosspiece to the amount. tilting causes certain difficulties in positioning the corresponding hole in the face of the profile and poses accessibility problems by means of the clamping tools; in addition, the displacement force exerted on the slider is equivalent only to the value of the horizontal projection of the force actually applied at the clamping means.

 The devices allowing the assembly at any angles of two profiles previously cut at an angle, are, for their part, mainly constituted by an assembly core capable of being inserted inside the profiles, and two tie rods, each connected to one of the sections, joined and articulated by means of a movable link relative to the core; the end of each tie rod further comprises means for hooking to the profiles. Such devices are described in particular in French patent applications Nos. 81.07978 and 82.13459 and allow the abutment and tightening of the profiles to be assembled in a single operation. The drawback of these devices mainly comes from the fact that the holes drilled in the profiles can be made only, either on the faces of these profiles located on the side of the top of the connection angle, or on the faces located on the opposite side. Depending on the faces subsequently seen or the accessibility conditions, this restriction may indeed pose aesthetic or implementation problems.

 The present invention proposes to provide a blocking piece capable of being used to produce assembly devices falling into one or the other category of the devices mentioned above and retaining the advantages already mentioned of solidity and speed. laying, while overcoming the disadvantages of these devices.

 An object of the invention is in particular to allow the production of profile assemblies bearing end against the face of a second element, with the guarantee of a perfect tightening and without play, without requiring the application significant effort when tightening.

 Another objective is to simplify the operation of positioning and making the holes made in the profiles.

 Another objective is to provide an angle assembly device between two sections cut at an angle, making it possible to make the holes either on any of the faces of said sections.

To this end, the present invention relates to a blocking piece for an assembly device at an angle of a hollow profile with another element, said blocking piece being of shape suitable for allowing its accommodation inside the profile and comprising
- means for hooking to said profile comprising a retractable pin associated with elastic means arranged to cause it to protrude relative to one face of the blocking piece, in order to allow said pin to snap into a formed bore in a wall of the profile,
- Means for relative longitudinal displacement of said blocking piece, in the direction of approximation of the profile to the second element.

According to the present invention, this blocking piece is characterized in that the longitudinal displacement means are housed in a recessed part of this piece and include
- a hollow pin of a shape adapted to be positioned in said recessed part and inside which are arranged the elastic means associated with the retractable pin, said pin being pivotally mounted about an axis (X, X ') and comprising a peripheral wall provided on the one hand, a form of light adapted to allow the passage of the pin and, on the other hand, a lug projecting relative to said wall,
- Displacement means adapted to enable the lug to be actuated in the direction of rotation of the journal, bringing the profile closer to the second element.

 According to a preferred embodiment, the axis (X, X ') is substantially orthogonal to the direction of movement of the locking piece. In addition, the displacement means activating the lug advantageously comprise a pressure screw screwed into a threaded hole opening onto the face of the blocking part with respect to which the pin projects and into the hollowed part of said blocking part in look of the lug.

 Thus, the bringing together of the two parts to be assembled and the blocking, without play, of the assembly are carried out very simply by screwing the pressure screw which comes into abutment against the lug and thus causes the rotation of the journal around its axis of rotation, and consequently a displacement of the retractable pin; the latter therefore exerts pressure against the thickness of the wall of the profile inside the bore thereof, thereby transmitting the action of bringing this profile closer.

 Preferably, the pin has a cylindrical shape, the hollowed out part made in the blocking part 9 as of a suitable shape, on the one hand, to accommodate said pin and guide it in rotation and, on the other hand, to allow an angular movement of the pin and lug during this rotation. In addition, the tapped hole is made orthogonally to the face of the blocking piece with respect to which the retractable pin projects.

 The drilling of one of the walls of the profile opposite this tapped hole can therefore be carried out very easily. In addition, the pressure screw moving in a tapped hole orthogonal to the wall of the profile and- positioned at a distance from the axis of rotation of the journal, an action on this screw results in the appearance of significant forces allowing '' obtain a resistant assembly, without play.

 This blocking piece can advantageously be used to produce devices for assembling two hollow profiles cut at an angle at any angle, capable of being contained inside the two profiles and of the type comprising a central assembly core composed of two parts articulated around a transverse axis of rotation. The blocking piece then preferably has a general shape which fits into a square parallelepiped and comprises a rear face comprising a threaded bore formed in said face so as to allow its fixing to the central assembly core mentioned above. comprises, for its part, according to a characteristic of the invention, a face of section identical to the section of the blocking part and comprising an orifice of conjugate dimensions of the tapped hole formed in the rear face of this blocking part.

 Thus, each blocking piece can be screwed onto the central assembly core, the retractable pin being positioned indifferently on the face of the assembly located on the side of the apex of the angle, on the opposite face or on one or the other side face, these positions being in particular authorized by the generally square shape of the blocking piece. Consequently, the holes made on the profiles with a view to serving as housing for the retractable pins can likewise be located on any one of the four faces of these profiles. This ease of use thus makes it possible to adapt to all the situations encountered during the mounting of the profiles and in particular, from an aesthetic point of view, to leave the external faces seen, smooth and in terms of implementation, to choose an easily accessible face for tightening the profiles.

 The blocking piece can also be advantageously used to produce devices for assembling a profiled cross member on the face, provided with a groove, with a profiled upright, of the type comprising means for fixing to the upright comprising a suitable shape to be able to fit in the groove of said upright.

According to the present invention, these means of attachment to the upright are arranged on the rear face of the locking piece. Depending on the applications, these fixing means can be constituted
- Either a tenon of cross-section combined with that of the groove of the upright and secured to the rear face of the blocking piece; the device thus produced then allows assemblies at right angles,
- Or a mortise secured to the rear face of a blocking piece and inside which is housed an articulated hinge carrying a tenon of cross section conjugate with that of the groove of the upright; the device thus produced allows, for its part, assemblies at any angle of a cross member on an upright.

 Other characteristics and advantages of the invention will emerge from the detailed description which follows and from the examination of the appended drawings which show a preferred embodiment and two examples of application.

On these drawings which form an integral part of the present description
FIG. 1 is a perspective view of a blocking piece according to the invention,
FIG. 2 is a vertical section thereof through an axial plane AA,
FIG. 3 is a horizontal section through a plane BB,
FIGS. 4 and 5 are perspective views of assembly devices between two sections cut at an angle, comprising blocking parts in accordance with the invention,
FIG. 6 is a vertical section through an axial plane CC of one of these devices,
- Figure 7 is a perspective view of a second assembly device comprising a blocking piece according to the invention and allowing the assembly of a hollow profile in support of b or t- against the face of a second element,
FIG. 8 is a vertical section thereof through an axial plane DD,
- Figures 9a, 9b, 9c are diagrams illustrating the process for producing the assembly of a profile bearing end against a face of a second profile.

 The blocking piece shown in Figures 1 to 3 is intended to be used in cooperation with an assembly member in order to allow the angled assembly of two elements.

 This blocking piece firstly comprises a body 1 having a general shape forming part of a square parallelepiped. This shape allows among other advantages to have this blocking piece in any position inside a profile. One end of this body has the shape of a yoke 2 opening towards the front of said body and the two wings 3 of which are each provided with an orifice 4 of circular shape. In the bottom 5 of this yoke is provided an axial lumen 6 opening out on the one hand into said bottom 5 of the yoke and opening on the other hand on the two faces 1a of the body 1 parallel to the wings 3 of the yoke 2.

 In addition, a tapped bore 7 is made in each side lb- of the body orthogonal to the aforementioned faces. These two bores 7, inside which a pressure screw 8 can be screwed, are arranged opposite one another with their axis substantially orthogonal to the faces lb of the body and open on the one hand on one of said faces lb and, on the other hand, in the light 6.

 The body 1 is finally provided on its rear face lo, disposed opposite the yoke 2, with a tapped bore 9 axial inside which can be screwed a screw 10 for securing the blocking part with a member given assembly.

 The blocking piece comprises, in the second place, a hollow pin 11, of cylindrical shape, of outside diameter substantially equal to the diameter of the orifices 4 formed in each wing 3 of the yoke 2 and of length equal to the width of the body 1 at the level of this screed. This pin 11 is provided on its peripheral wall with a lumen 12 of a shape adapted to allow the housing of a retractable pin 13.

This pin can slide perpendicular to the peripheral wall under the action of a bead 15 made of a compressible material, of a shape adapted to fill the cavity of the pin 11. This bead 15 thus causes the pin to protrude relative to the pin 11 and , beyond, - relative to a face lb of the locking piece.

 In addition, the retractable pin 13 conventionally has an abutment flange 14 located in the vicinity of its lower part, in order to avoid the release of this pin under the action of the bead 15. This retractable pin comprises, finally, a shoulder 13a delimiting an extreme section of reduced diameter adapted to penetrate and snap into a bore formed in the wall of a profile.

 On the peripheral wall of the pin 11 is also fixed a lug 16 extending orthogonally to said wall. This lug is positioned so that the respective longitudinal axes of the pin 13 and this lug define an angle substantially equal to 900.

 This pin is therefore adapted to be introduced between the two wings 3 of the yoke 2 so that its ends are housed in the circular orifices 4 formed in each of said wings 3, the lug being positioned in the axial lumen 6. I1 it should be noted that the pin can be positioned indifferently so that the pin 13 projects from one or the other face lb of the body 1. Depending on the positioning chosen, the pressure screw 8 will then be introduced into the either bore 7.

 A locking piece comprising in association a body 1 and a pin 11 as described above can be used to produce the angle assembly of two sections cut at an angle (FIGS. 4 and 5). To this end, two blocking parts are fixed on either side of a central assembly core 17 of transverse size identical to that of the blocking parts. This assembly core 17 consists, in the example, of two yokes 18 whose branches are linked and articulated, two by two around a transverse axis of rotation 19. In addition, the rear face 20 of these yokes 18 is provided with an axial bore 21 adapted to receive a screw 10 making it possible to fix a blocking piece on said rear face.

 The design of this device makes it possible to assemble the profiles at any angle perfectly adjusted by the bias cut of the profiles.

 In addition, the method of fixing each blocking piece on the assembly core 17 makes it possible to position the retractable pin 13 opposite any face of the profile, and therefore to pierce the latter indifferently on any one regardless of the position of the retractable pin of the second locking piece.

 The retractable pins of the two blocking parts can thus be arranged so as to project with respect to one and the same face of the two profiles (FIG. 4) or with respect to two faces situated in orthogonal planes (FIG. 5), or even by relation to two opposite faces. The choice between these various positions will depend, in particular, on the accessibility to the different faces of the profiles and / or of the faces of these profiles seen or hidden after completion of the assembly.

 The blocking piece can also be used for the assembly of two profiles, one being in abutment end against one face of the other, which face is provided with a return groove.

 To this end, a fixing member 22 is secured to the rear face lo of this blocking part so that it can be housed in the groove which is provided on the face of the second profile. In the example, this fixing member has the shape of a dovetail, combined with the inverted dovetail section of the groove (Figures 7 and 8).

 This fixing member can also be constituted by a tenon of conjugate shape of the groove, carried by an articulated hinge, housed inside a mortise, itself secured to the rear face of the blocking piece. Compared to the previous one, this solution has the advantage of allowing assemblies at any angle.

 Figures 9a, 9b, 9c show schematically an assembly process using a device for assembling a profile bearing end against the face of a second profile. These figures allow a better understanding of the functions of the various means of the invention, it being understood that the end-to-end assembly of two sections is carried out according to the same process.

 In a first phase, the pin 22 is introduced into the groove R of the profile M and is caused to slide to the desired height. The blocking part is then introduced into the section T by a simple push on this section parallel to the arrows shown in FIG. 9a; at the start of the introduction, pressure is applied to the pin 13 to retract it and allow it to pass through the profile.

 At the end of introduction (FIG. 9b), the pin 13 arrives at a hole 23 in the profile and snaps into it. It should be noted that an imprecision in the positioning of this bore 23 only causes greater play between the edge of the section T and the face of the section M, play which is easily compensated for during the tightening operation described below.

 In a second phase, the pressure screw 8 is maneuvered and thus comes into abutment against the lug 16, which it displaces, according to a circular trajectory, inside the slot 6. This displacement of the lug 16 causes , thanks to the rotation of the pin 11, in a first step, a misa in abutment of the shoulder 13a of the pin 13 against the thickness of the wall of the profile T and in a second step, through the contact between the pin and profile, a displacement of this profile T until its edge comes to bear against the face of the profile M (Figure 9c).

 An additional action on the pressure 8 then conditions a tightening of the two sections against one another and a blockage without play of the assembly. I1 it should be noted that the pressure screw moving in a tapped hole orthogonal to the wall of the profile and positioned at a distance from the axis of rotation of the cylindrical part 11, an action on this screw results in the appearance of significant efforts tending to block the profiles against each other.

Claims (15)

 1 / - Locking piece for a device for angled assembly of a hollow profile with another element, said locking piece being of a shape adapted to allow it to be housed inside the profile and comprising  - means for hooking to said profile comprising a retractable pin (13) associated with elastic means (15) arranged to cause it to protrude relative to a face (lb) of the blocking piece, in order to allow said pin to snap into a bore (23) formed in a wall of the profile,  - longitudinal displacement means (6, 7, 8, 11, 12, 16) of said blocking piece, in the direction of bringing the profile towards the second element,  said blocking piece being characterized in that the longitudinal displacement means are housed in a recessed part (2, 6) of this piece and comprise  - a pin (11) of a shape adapted to be positioned in said recessed part (2, 6) and inside which are arranged the elastic means (15) associated with the retractable pin (13), said pin (11) being mounted pivoting about an axis (X, X1) and comprising a peripheral wall provided, on the one hand, with a lumen (12) of a shape adapted to allow the passage of the pin (13) and, on the other hand, d 'a lug (16) projecting from said wall,  - displacement means (7, 8) adapted to enable the lug to be actuated in the direction of rotation of the pin (11) causing the profile to move towards the second element.  2 / - P i to that of b 1 ocage according to claim 1, characterized in that the pin (11) is pivotally mounted about an axis (X, X ') substantially orthogonal to the direction of movement of the workpiece blocking.  3 / - Locking piece according to one of claims 1 or 2, characterized in that the displacement means (7, 8) actuating the lug, comprise a pressure (8) screwed into a tapped hole opening onto the -face (lb) of the blocking piece with respect to which the pin (13) protrudes and in the recessed part (2, 6) of said blocking piece opposite the lug (16).  4 / - Locking piece according to one of claims 1, 2 or 3, characterized in that the pin (11) has a cylindrical shape, the recessed part (2, 6) of the locking piece being of suitable shape, on the one hand, to accommodate said pin and guide it in rotation and, on the other hand, to allow angular movement of the pin (13) and the lug (16) during this rotation and ion.  5 / - P iè cede blo cages elo n claim 4, characterized in that the lights (12) and lug (16) are arranged on the cylindrical wall of the pin (11) so that their respective longitudinal axes define a substantially angle equal to 900.  6 / - Locking piece according to one of claims 3, 4 or 5, characterized in that the threaded hole (7) is made substantially orthogonally to the face (lb) of the locking piece.  7 / - Locking piece according to one of claims 1, 2, 3, 4, 5 or 6, characterized in that the elastic means associated with the retractable pin (13) consist of a bead (15) of a material compressible in shape adapted to fill the inside of the pin (11).  8 / - Locking piece according to one of claims 4, 5, 6 or 7, characterized in that the recessed part (2, 6) is constituted by  a yoke (2) formed at one end of said blocking piece, and each of the wings (3) of which has an orifice (4) of conjugate shape of the pin (11),  - An axial light (6) opening into the bottom (5) of the yoke (2) and opening on two faces (la) of the blocking part parallel to the wings (3) of the yoke (2).  9 / - Locking piece according to claims 3 and 8 taken together, characterized in that it comprises two threaded holes (7) aligned, of conjugate diameter of the pressure screw (8), formed on two parallel faces (lb) of said blocking piece, so as to face vis-à-vis in the lumen (6).  10 / - Locking piece according to one of claims 1, 2, 3, 4, 5, 6, 7, 8 or 9, consisting of a body (1) having a general shape forming part of a square parallelepiped.  11 / - Locking piece according to one of claims 8, 9 or 10, characterized in that it comprises a rear face (il), opposite the end in the form of a yoke (2), comprising a bore (9 ) tapped formed in said rear face so as to allow the fixing of the blocking piece on an assembly member.  12 / - Device for assembling two hollow profiles cut at an angle at any angle, capable of being contained inside the two profiles and of the type comprising a central assembly core (17) composed of two parts (18 ) articulated around an axis (19) of transverse rotation, said device being characterized in that the end of each piece opposite the axis of rotation comprises a face (20) of section identical to the section of the piece of blocking according to one of the preceding claims, said faces (20) being pierced with an orifice (21) of dimensions combined with the dimensions of the tapped hole (9) formed in the rear face (lake) of the blocking parts.  13 / - Device for assembling a hollow profiled cross member (T) on the face, provided with a groove (R), of a profiled upright (M), of the type comprising means for fixing to the upright comprising a member suitably shaped to be able to be housed in the groove of said upright, said assembly device being characterized in that the fixing means are arranged on the rear face (1 c) of a blocking piece conforming to one of the claims 1 to 11.  14 / - An assembly device according to claim 13, in which the fixing means consist of a stud (22) of cross section conjugate with that of the groove (R) of the upright (M) and secured to the rear face ( lc) a blocking piece.  15 / - assembly device according to claim 13, wherein the fixing means are  consisting of a mortise secured to the rear face of a  blocking piece and inside which is housed a  articulated hinge carrying a tenon of cross-section combined with that of the post groove.