FR2917106A1 - Plasterboard support frame element i.e. U-shaped cross-sectional corner, fixing device for false ceiling, has lateral relief with support surfaces respectively and partially turned towards rear end section and front opposite to end section - Google Patents

Abstract

The device i.e. tab (8), has a rear end section (2) fixed to a partition of a building, an intermediate section (1), and a front end section (3) connected to a frame element (5). A lateral relief (30) of the front end section includes a support surface (34) partially turned towards the rear end section, and a support surface (35) partially turned towards the front opposite to the rear end section, where the support surfaces retain the frame element. The lateral relief radially extends towards exterior relative to a geometrical axis (10) of an extension direction of the intermediate section.

Description

The present invention relates to a device for attaching an element

  framing, siding plate support, wall or ceiling. If we take the example of a false ceiling, the plates constituting it are fixed to a lattice of horizontal angles which are suspended from the ceiling. The suspension is formed of vertical metal legs whose upper end is fixed in the ceiling and whose lower end is a connector on which we will finally connect the angles. Conventionally, the connector has an inverted T-shaped profile, the horizontal branches ending in vertical returns moving up mutually, that is to say slightly V male. The angles have an expanded U-profile whose upper ends vertical branches end with flaps folded horizontally towards each other. The angle is pushed upwards to impale on the connector, the obliqueness of the branches of the male V then mutually separating the free edges of the two horizontal flaps by wedge effect, until the angle is clipped, when its two flaps reach the free end of the T branch returns. Such a device, however, has a certain game because nothing prevents the angle to go up a little. In principle, gravity prevents it. However, in case of gusts of wind, the false ceiling can undergo an overpressure which tends to lift it. He is shaken. Apart from the noise that this induces, there is also a risk of stall, due to the energy, in the form of percussion, brought by the overpressure. The problem is of course more acute in the case of vertical siding, since the gravity then has no effect with respect to the blocking in precise position of the angles. The present invention aims at providing a solution that reduces the acuity of such a problem.

  To this end, the invention firstly relates to a device for fixing a facing plate support frame element, comprising a rear end section, for fixing to a building wall, an intermediate section. , of the body, and a front end portion, of connection to the frame member, having a lateral relief having a first bearing surface for retaining the frame member, turned, at least partially, towards the rear end section, characterized in that it further comprises a second bearing surface, for the frame member, rotated, at least partially, opposite the rear end section. So, he. it is easy to provide that the frame element comprises a pair of surfaces, respectively gripping and gripping, to cooperate respectively with the first and second bearing surfaces, so that the latter will form a clamp, or a corner according to their relative positions, blocking any forward or backward movement of the frame member relative to the fixing device. The second bearing surface may also be located on the lateral relief, so as to define a lateral relief V, that is to say a notch or a projection. The second bearing surface may also occupy a substantially radial position intersecting an extension direction geometric axis of the intermediate section, the front end section then having for example a dovetail profile. The frame member will then be inserted by elastic compression thereof or by elastic expansion of at least one of the two branches limiting the dovetail. The lateral relief may extend radially outwards with respect to a geometric axis of extension direction of the intermediate section. The device thus has a croc profile, possibly double, that is to say, T, coated or returned depending on whether it carries a vertical facing plate or a false ceiling plate. Preferably, at least one of the first and second bearing surfaces has an elasticity to generate a reaction force opposing the support of the frame member. It is thus possible to make up for an uncertainty of dimension incompatibility between the device and the frame element.

  Advantageously, at least one of the first and second bearing surfaces is situated on a lip extending out of a space gap defined by two parallel planes substantially tangent to two opposite major surfaces of the intermediate section respectively. This increases the width of the device, that is to say in fact according to its thickness, so that increases the lever arm opposing possible parasitic oscillations of the frame member.

  Advantageously, the device comprises two pairs of first and second bearing surfaces, the first bearing surfaces being turned, at least partially, in opposite directions with respect to a radial direction to a geometric axis of extension direction of the intermediate section. . The first bearing surfaces thus form a V, with branches possibly mutually distant, which together will transversely clamp the framing member, while the second bearing surfaces cooperate with the first bearing surfaces to effect a longitudinal pinching or jamming, preventing the frame member from advancing and falling backwards. The second bearing surfaces can be confused. Also provided is a faceplate support frame member having a gripping surface and a gripping surface respectively at least partially turned towards and away from a payload receiving surface. facing plate, so as to cooperate with a fixing device according to the invention.

  The invention will be better understood with the aid of the following description of four embodiments of a fastening device according to the invention, associated with an angle bracket forming a support surface of facing plates, with reference to the appended drawing, according to which: - Figure 1 is formed of Figures 1A, 1B, 1C and 1D, Figure 1A being a plan view of the fastening device according to the first embodiment, which is suspended a U-shaped angle with folded edges to the interior, cross-sectional view, having a facing plate fixing face, FIG. 1B being a cross-sectional detail view of a bearing lip, FIG. 1C showing a variant of the angle profile, and FIG. 1D being a partial side view showing a variant of the support lip, FIG. 2 is a plan view of the fixing device according to the second embodiment, on which is suspended a U-shaped bracket with folded-up edges. Fig. 3 is a plan view of the fastening device according to the third embodiment, to which is suspended a U-shaped bracket with outwardly folded edges, and Fig. 4 is a plan view. of the fastening device according to the fourth embodiment, to which is suspended an inverted T-shaped angle. The first embodiment is illustrated in FIG. 1A, FIGS. 1B, 1C and 1D, constituting variants of FIG. 1A, but the principle underlying these variants is applicable to the other embodiments. FIG. 1A shows a device in the form of a tab 8 for fixing a facing plate support frame element, precisely here an angle iron 5 with a U-shaped transversal profile. The fixing lug 8 constituting a spacer, here a piece of sheet metal, comprises an intermediate portion of elongated body 1, limited by two large opposite faces 6, 7 and extending in a direction of extension 10, connecting a rear end section 2, for attachment to a wall of 3. In all of the examples, the fastening device is a tab extending in the vertical direction, that is to say the section of which is connected to the wall. rear end 2 is attached to a ceiling and the detail of the form of attachment is not shown. It may be, for example, a section of sealing lug or even a section folded at right angles, horizontally, and pierced with a through hole of a vertical screw fixing to the ceiling, the underside of the head will support a lower surface area around the hole. The front end section 3 serves to suspend horizontally the angle 5, the base of the U is a horizontal bottom wall 59 limited by an upper surface 50 and a horizontal lower surface 51 intended to receive, by snapping, a false ceiling siding plate. The invention is however not limited to a suspension brackets, because it can also, turning the figures of a quarter turn, used to support wall facing plates. More generally, it is a matter of constituting an offset spacer angle brackets or equivalent lattice elements having the above function, with respect to a wall of a building, regardless of the direction of extension of this wall, which can also be a floor.

  For simplicity of the presentation, the extension direction 10 of the tab 8 is assumed to be vertical, thus with the angle 5 horizontally extended. If the group of elements were oriented differently, this presentation would remain valid after the desired transposition of the reference directions. Moreover, the numerical references followed by the letter "A", on the left-hand side of the general figures, designate an element of the same nature as an element of the same numerical reference, on the right, the two elements occupying positions generally in symmetry. specular with respect to a median plane perpendicular to the figure and containing the axis 10. Note however that perfect symmetry is not necessary, since it is only necessary to establish a second anchor point of the angle 5 on the left side. In addition, the functional elements have retained their reference in all the figures, with however the addition of a number of hundreds "2", "3" or "4" for the second, third and fourth embodiments respectively when this functional element changed shape.

  In addition, in the figures, the surfaces in contact have possibly been drawn with an intermediate gap, for clarity of the drawing. The front end section 3 here has a T-shaped profile limited by a front surface 31, with two lateral reliefs or lugs 30, respectively 30A, each comprising, on a radially outer rim 32, 32A, an indentation 33 in FIG. V, thus female, respectively 33A, limited by a first lower bearing surface 34, 34A partially turned towards the rear end section 2, that is to say constituting a lower branch of the female V, for the The notch 33, 33A, is further limited by a second bearing surface 35, 35A, upper, for the bracket 5, constituting an upper branch of the V female, that is to say partially facing away from the rear end section 2. The bottom wall 59 continues laterally by two rising walls 52, 52A, here purely vertical and therefore perpendicular to the bottom wall 59, which end with a band folded, that is to say e flap or flange folded internally, here substantially horizontally, 53, respectively 53A. In other words, the overall profile of the angle is rectangular, except for an upper slot 58 separating the two free edges facing the two flaps 53, 53A, the free end of the T, that constitutes the section of front end 3, is of a size adapted to be introduced by force through the slot 58 in the housing that constitutes the bracket 5. As drawn, the rising edge 32, 32A can be inclined relative to the axis 10, that is that is, having a narrower bevel profile near the front surface 31 so that it has a width slightly smaller than the width of the associated slot 58. On the other hand, the upper end points of the opposing bevels, that is to say the two radially outer ends of the first bearing surfaces 34, 34A, are spaced a distance greater than the width of the slot 58 , so that the angle 5 can be clipped on the lower end of the T, this by elastic deflection of the two walls or rising branches 32, 32A.

  The respective bottoms of the notches 33, 33A are located at a determined mutual distance which substantially corresponds to the width of the slot 58. More specifically, the distance between the notch bottoms 33, 33A is such that the angle 5 clamps the leg horizontally 8 at this level. Indeed, the free edge of each flap 53, 53A has a first surface, hooking, or a simple lower edge, 54, 54A which rests on the first bearing surface 34, 34A and has a second surface, of stop, or a single edge, upper, 55, 55A resting on the second bearing surface 35, 35A upper. The support on the first lower bearing surface 34 is here due to the gravity, while the bearing on the second bearing surface 35 is due to the fact that the free edge of the flap 53, 53A is elastically biased towards the bottom of the notch 33, 33A. Thus, to summarize, the angle 5 clamp transversely, horizontally, the tab 8 at an intermediate level of the branches of the T constituted by the reliefs in ears 30, 30A, while the two edges of each notch 33, 33A of the T block by pinching , substantially longitudinal, the free edges of the flaps 53, respectively 53A.

  Figure 1B shows a variant in which the lower bearing surface 34 is carried by a lip 34V formed by twisting the nozzle that constitutes the junction zone of the upper portion of the rising edge 32 with the first lower bearing surface 34. In this way, the free end of the first lower support surface 34 is offset outside a space gap defined by two vertical parallel planes 6P, 7P, respectively tangent to the two large opposite faces 6, 7 of the Thus, the first and second bearing surfaces 34 and 35 are mutually offset laterally, so that they have an increased reaction torque if the angle 5 tends to tilt in the opposite direction to that of the needles. a watch in Figure 1B. To also better withstand a tilting force in the other direction, it is here provided that a spout bearing the bearing surface 34A is twisted the same (34VA), but the opposite side to the slice of space ci- above. The nozzle or beaks above can be provided on all embodiments. In addition, it may further be provided that they have a vertical elasticity, so as to tolerate uncertainties of correspondence between the dimensions of the cutting details of the section front end 3 and the angles 5. FIG 1C shows a variant of the right profile of the angle 5, in which the flap 53 has been transformed into a flap 53R even more folded, inclined downward towards its free edge, so that the slot 58 and has a flared mouth, the flap 53A, not redesigned, having been folded likewise. The rising edge 32, 32A can thus separate these two flaps even if it is provided parallel to the axis 10. It will be noted that the fact of providing two attachment zones, respectively on either side of the axis 10, is an optimal but not imperative embodiment. Indeed, it could be provided only one hooking, at the rising edge 32, while the rising edge 32A would be free of notch 33A. In particular, insofar as the indentation 33 has a profile of substantially the same shape as the profile of the flap 53 or 53R, it would not be likely to pivot in the opposite direction to that of the needles, so that the angle 5 would be locked in pivoting. The rising edge 32A would therefore not be likely to descend below the level of the front surface 31 of the T, so that it would, without fail, ensure its transverse clip function in cooperation with the flap 53 or 53R. FIG. 1D, which is an enlarged partial view of the modified indentation 33 and the flap 53, illustrates that at least one of the four bearing surfaces 34, 35 and hooking or abutment 54, 55 may be carried by an elastically flexible tongue 34L. The tongue 34L, here carrying the first lower bearing surface 34, is for example, as drawn, cantilevered on one side, to facilitate its flexion. Preferably as drawn, the tongue 34L extends, from a mouth area of the notch 33 which it is integral, towards the bottom of the notch 33, thereby to avoid any risk of abutment of the free edge of the flap 53 on the free end of the tongue 34L. Alternatively, the tongue 34L may be curved and held at both ends, thereby forming an arch that the flap 53 will partially crush, because it limits a passage slot flap 53, also limited by the second bearing surface 35 upper, next to the tongue 34L. As a variant, the edge zone comprising the rising edge 32, 32A may itself be a radially elastic ascending tongue, of which an upper free end section bears the first bearing surface 34, inclined downwardly outwards, to thereby form a pawl that will be radially compressed. The assembly forms a crimp folded towards the axis 10. In this way, when the flap 53, 53A passes above the point, radially extreme, junction of the rising edge 32, 32A with the first bearing surface 34, 34A, the tongue expands radially outwards. The first bearing surface 34, 34A, inclined, then slides under the flap 53, 53A and thus exerts, by wedge effect, on the first attachment surface 54, 54A below, a lifting force of the angle 5, until the second stop surface 55, 55A reaches the second bearing surface 35, 35A. In general, the flap 53, 53A and the first bearing surface 54, 54A may have any desired angle of drawdown towards the axis 10, provided however that the first bearing surface 34, 34A is more inclined relative to the axis 10, so as to be able to exert the corner effect. FIG. 2, according to the second embodiment, illustrates a variant of FIG. 1, in which the flap 253, respectively 253A, cooperates with its first fastening surface 254, 254A, which is less than with the first surface. 234, 234A, lower support, formed in the lateral side 232, 232A of the lateral relief 230, 230A, constituting a first clamp leg in the end end portion 203. The second upper bearing surface is functionally replaced by a second bearing surface 231F located on a zone, possibly in excess of thickness and optionally curved, of the front surface 231, that is to say facing towards the upper surface 250 of the angle 205, and therefore opposite the rear end section 2. It is then an upper surface area 250F of the upper surface 250 which constitutes a second branch of said clamp. In fact, this clip 234, 231F here constitutes a corner, and it is the angle 205 which constitutes an elastic clip. The second upper support surface 35A is likewise omitted, and the principle of clamping applies equally to the left-hand part of FIG. 2. For convenience, the second lower branch of the left-hand corner bears on the same 250F surface area as the right corner. This is why the second area of front support surface 231F has been drawn straddling the axis 10, which is however not a necessity. FIG. 3 illustrates the third embodiment, which is a variant of FIG. 1. The essential difference lies in the fact that the flaps 353 and 353A are turned radially outwards, extending horizontally, as shown in FIG. drawn, or oblique.

  The T-section of the front end section 303 has therefore been modified, that is to say that the front surface 331 has a front notch 331E for receiving the upper part of the rising walls 352, 352A of the bracket 305 carrying the flaps 353, 353A. Two side edges 332, 332A of the lateral reliefs or ears 330, 330A, limiting the notch 331E and slightly bevelled relative to the vertical, have, in the upper part, that is to say near the bottom of the notch 331E, said two indentations 333, 333A, but which are open towards each other, delimiting first lower bearing surfaces 334, 334A and second bearing surfaces 335, 335A greater. FIG. 4 illustrates the fourth embodiment, which is a variant of FIG. 3. The bracket 405 has an inverted T or rail profile, that is to say that the two rising walls 352, 352A of the Figure 3 have been brought together and joined in a rib 501 here central, represented on an enlarged scale to better illustrate the details. As for FIG. 3, the bracket 405 is hooked, by two first lower hooking surfaces 454, 454A, onto two first bearing surfaces 434, 434A, respectively, on the rising edges 432, 432A of the lateral reliefs 430. , 430A radially reentrant, constituting the first branch of each of the two clamps in the end end portion 403. The essential difference lies in the fact that the second respective gripper legs are constituted by a zone of second bearing surface 431F located in the bottom of a front notch 431E, dovetail, homologous to the frontal notch 331E. A free end edge at the top of the rib 501 carries a second abutment surface 455, facing rearward, cooperating with the second bearing surface 431F. Due to the inversion of the profile with respect to FIG. 2, the second bearing surface 231F situated further forward than the first bearing surface 234 is here functionally replaced by the second bearing surface 431F, which is located further back than the first bearing surface 434. As exposed for the second bearing surface 231F, the bearing surface 431F could be split, this for each clamp.

  As an alternative to the above, and again for convenience of use, Fig. 4, it can be provided that the second, forward facing, bearing surface 431F is functionally replaced by a pair of second surfaces. support 435, 435A also turned forwardly and located respectively on two sections 431, 431A of front surface, constituting the free end edges at the outlet of the notch 431E. The upper face 450 of the bracket 405 has corresponding upper abutment faces 456, 456A, facing upwards, and replacing the upper abutment surface 455.

Claims (10)

claims   1. Device for fastening a facing plate support frame element (5, 205, 305, 405), comprising a rear end section (2), for fixing to a building wall, a section intermediate (1), and a front end section (3, 203, 303, 403) for connection to the frame member (5, 205, 305, 405), having a lateral relief (30 , 30A) having a first bearing surface (34, 34A, or 234, 234A, or 334, 334A, or 434, 434A) for retaining the frame member (5, 205, 305, 405), rotated, at least partially towards the rear end section (2), characterized in that it further comprises a second bearing surface (35, 35A or 31F, 231E or 335, 335A or 435, 435A), for the frame member (5, 205, 305, 405) rotated at least partially away from the rear end portion (2).   The device of claim 1, wherein the second bearing surface (35, 335, 435) is located on the lateral relief (30, 330, 430).   3. Device according to claim 1, wherein the second bearing surface (231F, 431F) occupies a substantially radial position intersecting a geometric axis (10) of extension direction of the intermediate section (1).   4. Device according to claim 3, wherein the end end section (303, 403) has a dovetail profile.   5. Device according to one of claims 1 to 3, wherein the lateral relief (30, 230) extends radially outwardly with respect to a geometric axis (10) of direction of extension of the intermediate section ( 1).   6. Device according to one of claims 1 to 5, wherein at least one of the first and second bearing surfaces (34, 34A or 234, 234A, or 334, 334A, or 434, 434A and 35, 35A or 31F, 231F or 335, 335A or 435, 435A) has an elasticity to generate a reaction force opposing the support of the frame member (5, 105).   7. Device according to one of claims 1 to 6, wherein at least one of the first (34, 34A) and second bearing surfaces is located on a lip (34L, 34LA) extending out of a space gap defined by two parallel planes (6P, 7P) substantially tangent to respectively two opposite major surfaces (6, 7) of the intermediate section (1).   8. Device according to one of claims 1 to 7, comprising two pairs of first and second bearing surfaces (34, 34A or 234, 234A, or 334, 334A, or 434, 434A and 35, 35A or 31F, 231F or 335, 335A or 435, 435A), the first bearing surfaces (34, 34A or 234, 234A, or 334, 334A, or 434, 434A) being rotated, at least partially, in opposite directions with respect to a direction radial to a geometric axis (10) of extension direction of the intermediate section (1).   9. Device according to claim 8, wherein the second bearing surfaces (231F, 431F) are merged.   A framing plate support frame member (5, 105) having a hooking surface (54, 54A or 454, 454A) and an abutment surface (55, 55A or 455 or 456, 456A) respectively turned at least partially towards and away from a face plate receiving surface (51) so as to cooperate with a fastening device according to one of claims 1 to 9.