FR3043107A1 - ADJUSTABLE SUPPORT DEVICE FOR SUSPENDED CEILINGS - Google Patents

Abstract

Adjustable support device (10) for suspended ceilings. Composition: support body (21); seat stops (22) on the lower part of the support body (21) to support the support body (21) with a rotation along a vertical axis; retaining means, on the lower part of the support body (21) allowing, by means of rotation, to grip the upper flange (13) of a primary framework (12) by preventing any vertical movement of the body of support (21); locking means (24) sliding vertically relative to the support body (21) for the engagement of the upper flange (13) in a housing (25) of the locking means (24), preventing any rotation of the body of support (21); and leveling means, threaded internally and mounted on the support body (21), for housing a threaded rod (18), so as to produce a vertical displacement of the support body (21) along the threaded rod ( 18).

Description

ADJUSTABLE SUPPORT DEVICE FOR SUSPENDED CEILINGS

DESCRIPTION

OBJECT OF THE INVENTION

The present invention can be applied to the construction sector, and in particular in the installation of suspended ceilings in buildings.

More specifically, the object of the invention is an adjustable type of fixing device to be fixed to the roof structure of a building, a beam or a primary frame to support a suspended ceiling.

BACKGROUND OF THE INVENTION

Suspended ceilings, also referred to as false ceilings in the building sector, are masonry pieces including a support system attached to the roof structure (beams, slabs, etc.) of a building, and in addition, the suspended ceilings have also a set of ceiling tiles suspended from the carrier system, so as to define an air chamber with the roof structure.

The installation of a suspended ceiling can be done for several reasons; in particular, this system makes it possible to hide certain installations and, if necessary, to protect these hidden installations from fire; it also makes it possible to improve the behavior of the building and its structures, in particular the acoustic, thermal and fireproof behavior, even improving the aesthetics.

Today, there are many solutions available, both for the definition of slabs and the carrier system, depending on various circumstances. Some of these solutions consist in suspending from the roof structure a grid of profiles, the latter comprising primary frameworks suspended by means of threaded rods arranged vertically, with the upper ends fixed to the roof structure and the lower ends fixed. to profiles. The profiles also have a set of secondary frames which are connected to the primary frames to define the lattice. Once the frames are leveled using the threaded rods, the slabs are then fixed; for example, they can be screwed to secondary frames.

In particular, with regard to the supporting structure, FIG. 1 shows one of the supporting structures which form part of the state of the art, comprising a suspension accessory (1) called "Stil Prim 100 1/4", which is fixed to the upper wing of the primary frame of the supporting structure using sheet metal screws. The mentioned accessory (1) is obtained by folding a plate and has a curved U shape, with a rectangular central portion (2) extending from two opposite sides in the two intermediate portions (3), by means of the corresponding first folds (4), the two intermediate portions (3) being parallel but not facing each other as each of them is moved to one side of the central portion (2). Each intermediate portion (3) extends in turn inward, according to the second corresponding plies (6), in a corresponding end portion (5). Each end portion (5) has two first perforations (7) at 45 °, for its screwing to the upper wing of the corresponding primary frame, one of the end portions (5) being screwed to the face upper of this wing, and the other, on the underside. In the center of the central portion (2) there is a second perforation (8) for insertion of the threaded rod, and in the center of each intermediate portion (3) there is a corresponding third perforation (9).

DESCRIPTION OF THE INVENTION

The present invention discloses an adjustable type support device for suspended ceilings; in particular, the support device of the invention allows the suspension, from the roof structure of a building (in particular, from a beam, a slab, etc.), and in cooperation with a threaded rod, a primary frame forming part of a carrier system for hanging suspended ceiling tiles.

As described below, the support device of the invention facilitates the installation of suspended ceilings by reducing the number of operations and thus, saving time, while greatly simplifying the structure of the necessary components. In particular, the implementation of the support device is based on three simple steps and without the need for screws.

The support device for suspended ceilings has been designed to suspend from a roof structure a primary framework forming part of a suspended ceiling-carrying system, the primary framework comprising an upper wing with an upper face and a lower face forming a figure. IPN. To do this, the support device includes a support body and at least one seat stop on the lower part of the support body to support the support body on the upper face of the upper wing, so as to allow a rotation of the support body relative to a vertical axis between a first rotational position and a second rotational position.

There are also means of restraint on the lower part of the support body; these retaining means are configured so that, in the second rotational position, they can grip the upper flange between the upper face and the lower face, to prevent any vertical displacement of the support body.

Furthermore, the support device is also provided with locking means vertically slidably mounted to the support body so that, in the second rotational position, it is possible to move from a first position of displacement in which these means of are above the upper wing, at a second position of displacement in which the upper wing remains engaged in a housing defined at the lower level in the locking means, so as to avoid any rotation of the support body relative to to the vertical axis.

For the leveling of the primary framework, the support device comprises leveling means, internally threaded at least in part and mounted on the support body, to accommodate the threaded rod, allowing a helical movement which produces a vertical displacement of the support body along the threaded rod, when the support body is mounted on the primary frame and after reaching the second position of displacement.

DESCRIPTION OF THE FIGURES

To complete the present description and to better understand the features of the invention, according to a preferred embodiment of practical embodiment thereof, a set of figures is provided in the appendix to this description, being an integral part thereof; these drawings are provided for illustrative and non-limiting purposes, and represent the following:

Figure 1, - Representation of a perspective view of a mounting accessory for suspended ceilings, according to the state of the art, as described in the antecedents and referenced as follows: STIL PRIM 100 1/4.

Figure 2, - Representation of a schematic view of a suspended ceiling mounted using the mounting device according to the present invention.

3A to 3C.- Representations of several perspective views of a sequence of installation of a suspended suspended ceiling with the support device of the invention. In particular, Figure 3A illustrates a first step in which the support body descends to land on the primary frame. With regard to FIG. 3B, it illustrates a rotation of the support body on the vertical axis, the latter being pressed against the primary framework, between a first rotational position and a second rotational position. Finally, FIG. 3C shows a vertical displacement of the locking means between a first displacement position and a second displacement position.

Figure 4, - Representation of a view illustrating the configuration of the leveling means.

DESCRIPTION OF A PREFERENTIAL FORMAT OF REALIZATION

On the basis of the figures described above, here is a detailed description of a preferred embodiment of the present invention. The object of the invention is an adjustable support device (10) for the suspension, from a slab (11) forming part of the roof structure of a building, of a primary framework (12) making part of a carrier system for suspended ceiling.

FIG. 2 is a schematic view of the slab (11) from which the suspended ceiling consisting of a set of slabs (34) is suspended by means of a set of primary frameworks (12) (FIG. only one of these primary frames (12)). The primary framework (12) shown in the figures comprises an upper wing (13), a lower wing (14) and a web (15) serving as a link between the upper wing (13) and the lower wing (14). . In turn, the upper wing (13) has an upper face (16) and a lower face (17). The primary framework (12) is suspended from the slab (11) by means of the support device (10) of the invention, in cooperation with a threaded rod (18) whose upper end (19) is fixed to the slab (11). ) and a lower end (20) is connected to the support device (10) of the invention.

The slabs (34) forming part of the suspended ceiling are mounted on the carrier system by means of various solutions already known. In particular, the slabs (34) can be mounted directly on the lower flange (14) of the primary frame (12) or alternatively on secondary frames (not shown) associated with the primary frames (12).

FIGS. 3A, 3B and 3C are a sequence which illustrates the configuration and a mounting mode of the support device (10). The support device (10) comprises a support body (21) for supporting the remaining elements which are described below.

In particular, as shown in FIG. 3A, the lower part of the support body (21) has at least one seat stop (22), and preferably two seat stops (22), to press on the upper face (16) of the upper flange (13) of the primary frame (12), for sliding by contact the support body (21) relative to the upper face (16), and allowing the rotation of the body of support (21) along a vertical axis between a first rotational position and a second rotational position. The vertical arrow of FIG. 3A shows the direction and the direction of vertical movement of the support body (21) until the seat stops (22) come into contact with the upper face (16) of the wing. upper (13) of the primary framework (12). Figure 3A shows the first rotational position.

Preferably, the seat stop (s) (22) is / are configured as a horizontal / horizontal flap (s), and in particular it (they) is / are folded (s) relative to the support body (21), either inwardly or outwardly (in the figures, they are folded inwardly). Even more preferably, according to the example shown, the seat stops (22), and in particular the flaps, are shaped with the support body (21), that is to say, that they are part of one piece. Similarly, the figures show an example with two seat stops (22) in the form of two flaps, unfolded inward, integrated with the support body (21) and diagonally face to face. On the other hand, and also on the lower part of the support body (21), there are retaining means (23) which are configured so that, in the second rotational position, they can grip the wing upper (13) between the upper face (16) and the lower face (17) of the upper wing (13), to prevent any vertical displacement of the support body (21).

In the example shown in the figures, the retaining means (23) extend with respect to the support body (21), downwards, beyond the seating abutments (22). Thus, when the seat stops (22) come into contact with the primary framework (12), the retaining means (23) remain at a lower dimension than that of the lower face (17) of the upper wing (13) of the primary framework (12), so that when the support body (21) moves from the first rotational position to the second rotational position, the retaining means (23) is located under the upper flange (13) of the primary frame (12) to prevent vertical movement of the support body (21). FIG. 3B shows the passage between the first rotational position and the second rotational position, which is represented by the curved arrow of FIG. 3B, whereas FIG. 3C illustrates the second rotational position in which the retaining means (FIG. 23) enclose the upper wing (13) of the primary frame (12).

Preferably, the retaining means (23) are configured as if they were one or more tongues (preferably two tabs). Even more preferably, according to the example shown, the retaining means (23), and in particular the tongues, are shaped with the support body (21), that is to say, that it is part of one piece. Similarly, the figures show an example with retaining means (23) as two tabs which are integrated with the support body (21) and diagonally face to face, and in particular, they are face to face along a diagonal complementary to the diagonal from which the seat stops (22) are placed face to face.

Locking means (24) are slidably associated vertically with the support body (21) so that, in the second rotational position, they can move vertically downwards to pass as indicated by the arrow. vertical view of FIG. 3C, of a first displacement position in which these locking means (24) are above the upper wing (13), at a second displacement position in which the upper wing (13) remains nested in a housing (25) defined at the lower level in the locking means (24), so as to avoid any rotation of the support body (21) on the vertical axis. Once the second displacement position has been reached, as shown in FIG. 3C, the support body (21) is mounted on the primary framework (12) while preserving a certain degree of longitudinal freedom of movement along the this primary framework (12), as explained below.

Preferably, the locking means (24) have a projection (26) to push them if they do not descend automatically by the effect of gravity. In the example shown in the figures, the projection (26) is configured as a tongue located in the upper part of the locking means (24).

Furthermore, the locking means (24) can be configured as a wafer, the housing (25) consists of an opening in the lower portion of the wafer.

In addition, the support device (10) is provided with leveling means (27), threaded internally, at least in part, and mounted on the support body (21), for housing the threaded rod (18), allowing a helical movement which produces a vertical displacement of the support body (21) along the threaded rod (18), when the support body (21) is mounted on the primary framework (12) and after reaching the second displacement position. The primary frame (12) is thus adjusted in height with respect to the roof structure; in this particular case, it is adjusted in height relative to the slab (11). Figure 3C illustrates this situation in the second displacement position.

Preferably, the leveling means (27) comprise a bushing (28) made of an electrically insulating material, for example a polymer, preferably by molding. In addition, the leveling means (27) are provided with a nut (29), threaded internally and housed inside the sleeve (28), in the lower part of this sleeve (28). The nut (29) can be attached to the bushing (28) after manufacture of the bushing (28), but it is preferable that the bushing (28) is in focus with the integral nut (29) from the start . The lower end (20) of the threaded rod (18) is inserted from above into the leveling means (27), in particular through the sleeve (28), and is then screwed into these leveling means (27), and in particular in the nut (29). In this particular case, when the lower end (20) of the threaded rod (18) is screwed to the nut (29), no electrical contact occurs between the threaded rod (18) and the support body (21). ).

Preferably, the support body (21) has a blind hole (30) for mounting the sleeve (28), preferably so that the sleeve (28) can rotate freely relative to the support body ( 21) along the vertical axis. In particular, the hole (30) may have at least two peripheral grooves (31), preferably opposite, as shown in the figures, and the sleeve (28) may have two peripheral and deformable projections (32) corresponding to the grooves (31). The upper part of the sleeve (28) is inserted through the lower part of the hole (30), the projections (32) deform to pass through the grooves (31) and the sleeve (28) is thus retained between the projections ( 32) and the area of the nut (29), which is larger than the hole (30).

Thanks to the previous configuration, in case of fire, even if the bushing (28) is melted due to the temperature reached because of the fire, the nut (29) withstands the weight of the suspended ceiling for longer.

Preferably, as shown in the figures, the support body (21) has an inverted U-shaped profile, with a central section and two lateral sections that extend from the central section, where the hole (30) is located on the central section of the profile, while on the lateral sections, are configured the seat stops (22) in the form of flaps, but also the retaining means (23) in the form of tabs. On their side, the tongue-shaped locking means (24) are slidable with respect to the lateral sections of the U-shaped profile, for example by means of guides (33), which start at the edges of the locking means. (24), and which are bent inwards to surround the lateral sections.

According to the example shown, on one side of each of the lateral sections, one of the flap-shaped seat stops (22) is configured, and on the other side of each of the lateral sections is configured the one of the tongue-shaped retaining means (23), wherein the flaps face each other diagonally, and the tabs are also diagonally opposite each other. The invention described allows to mount the supporting structure of a suspended ceiling with ease and speed, without the need to use screws in three movements only, as shown in Figures 3A, 3B and 3C. The invention makes it possible first to mount the support device (10) on the primary framework (12) and then to level the primary framework (12) with the aid of the threaded rod (18). Alternatively, and depending on the circumstances, it is also possible to first mount the support device (10) on the threaded rod (18) and then to suspend the primary framework (12) of the support device (10). . The degree of freedom of longitudinal displacement that the support body (21) has with respect to the primary framework (12), as specified above, simplifies the assembly.

Claims (20)

1, - Support device (10) adjustable for suspended ceilings, for suspending from a roof structure a primary framework (12) forming part of a suspended ceiling carrying system, where the primary framework (12) comprises a wing upper (13) with an upper face (16) and a lower face (17); The support device being characterized in that it comprises: - a support body (21); at least one seating abutment (22) on the lower part of the support body (21) for supporting the support body (21) on the upper face (16) of the upper wing (13) so as to allowing rotation of the support body (21) relative to a vertical axis, between a first rotational position and a second rotational position; - retaining means (23) on the lower part of the support body (21) configured so that, in the second rotational position, they enclose the upper flange (13) between the upper face (16) and the lower face (17) to prevent vertical movement of the support body (21). locking means (24) slidably associated vertically with the support body (21) in order to pass, in the second rotational position, a first displacement position in which these locking means (24) remain above the upper flange (13), at a second displacement position in which the upper flange (13) remains nested in a housing (25) defined at the lower level in the locking means (24), so as to avoid any rotation of the support body (21) along the vertical axis; and - leveling means (27) threaded internally, at least in part, and mounted on the support body (21), for housing the threaded rod (18), allowing a helical movement which produces a vertical movement of the body support member (21) along the threaded shank (18), when the support body (21) is mounted on the primary framework (12) and after reaching the second displacement position. 2, - Support device (10) adjustable for suspended ceilings, according to claim 1, characterized in that the seat stop (s) (22) is / are configured as a flap (s) ( s) horizontal / horizontal. 3, - Support device (10) adjustable for suspended ceilings, according to any one of claims 1 to 2, characterized in that the / the seat stop (s) (22) is / are put (s) shaped with the support body (21) so as to constitute a single piece. 4, - Support device (10) adjustable for suspended ceilings, according to any one of claims 1 to 3, characterized by the fact that the seat stop (s) (22) is / are folded (s) relative to the support body (21). 5, - Support device (10) adjustable for suspended ceilings, according to claim 1, characterized in that the retaining means (23) are shaped with the support body (21) so as to constitute a single piece . 6, - Support device (10) adjustable for suspended ceilings, according to any one of claims 1 and 5, characterized in that the retaining means (23) are configured as one or more tabs. 7, - Support device (10) adjustable for suspended ceilings, according to any one of claims 1,5 and 6, characterized in that the retaining means (23) extend relative to the support body (21) downward beyond the seat stops (22). 8, - Support device (10) adjustable for suspended ceilings, according to claim 1, characterized in that the locking means (24) have a projection (26) to push them down. 9, - Support device (10) adjustable for suspended ceilings, according to either of claims 1 and 8, characterized in that the locking means (24) are configured in the form of a plate, where the housing (25) is formed by an opening in the lower part of this plate. 10, - Support device (10) adjustable for suspended ceilings, according to claim 1, characterized in that the leveling means (27) comprise a sleeve (28) made of an electrically insulating material. 11, - Support device (10) adjustable for suspended ceilings, according to claim 10, characterized in that the sleeve (28) is made of a polymeric material. 12, - Support device (10) adjustable for suspended ceilings, according to either of claims 10 and 11, characterized in that the leveling means (27) further comprise a nut (29) metal, internally threaded and housed inside the sleeve (28) in the lower part of this sleeve (28). 13, - Support device (10) adjustable for suspended ceilings, according to any one of claims 10 to 12, characterized in that the support body (21) has a blind hole (30) for mounting of the socket (28). 14, - Support device (10) adjustable for suspended ceilings, according to claim 13, characterized in that the sleeve (28) can be mounted in the hole (30) so as to allow free rotation of the sleeve (28). ) relative to the support body (21) along a vertical axis. 15, - Support device (10) adjustable for suspended ceilings, according to any one of claims 13 and 14, characterized in that the hole (30) has at least two grooves (31) peripheral, and the sleeve (28) has two deformable peripheral projections (32) n corresponding to the grooves (31), for insertion of the upper part of the sleeve (28) through the lower part of the hole (30), so that the protrusions (32) deform to be able to pass through the grooves (31) and the bushing (28) remains retained between the projections (32) and the region of the nut (29), having dimensions larger than the hole (30). 16, - Support device (10) adjustable for suspended ceilings, according to claim 1, characterized in that the support body (21) has an inverted U-shaped profile. 17, - Support device (10) adjustable for suspended ceilings, according to claims 13 and 16, wherein the U-shaped profile has a central section and two lateral sections, the hole (30) being located on the central section of the profile. 18, - Support device (10) adjustable for suspended ceilings, according to claims 2, 6 and 17, characterized in that on one side of each of the lateral sections, is configured one of the seat stops (22). ) in the form of flap, and on the other side of each of the lateral sections is configured one of the retaining means (23) in the form of a tongue, the flaps being face to face diagonally, and the tongues also facing face diagonally. 19, - Support device (10) adjustable for suspended ceilings, according to claims 1 and 17, characterized in that the locking means (24) are in the form of sliding plates relative to the lateral sections of the profile. 20, - Support device (10) adjustable for suspended ceilings, according to claim 19, characterized in that the locking means (24) in the form of a wafer have guides (33) which start at the edges of the means of latch (24) and which are bent inwardly from the lateral sections.