EP3582654A1

EP3582654A1 - Device for controlling the movements of a horizontal sleeping platform, stowable at the ceiling, via the opening of its feet or legs

Info

Publication number: EP3582654A1
Application number: EP18717405.7A
Authority: EP
Inventors: Benoit Barbier; Claude DEBUIGNE
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-02-20
Filing date: 2018-02-02
Publication date: 2019-12-25
Also published as: FR3062995A1; WO2018150107A1; FR3062995B1

Abstract

Device for controlling the movements of a horizontal sleeping platform (2), stowable at the ceiling, via the opening of its feet or legs (3). The aim of the invention is to deliberately force the legs (3) to open and to ensure that the platform (2) is fully supported in the sleeping position. The invention relates to a device providing for the vertical movements of a platform (2) and controlled by the opening of its legs (3). The device ensures that the legs (3) are open when the platform (2) is in the sleeping position. The device according to the invention is particularly intended for beds (1) having a sleeping platform (2) which can be stowed at the ceiling.

Description

DEVICE FOR CONDITIONING THE MOVEMENTS OF A TRAY

HORIZONTAL SELF RETRACTABLE AT THE CEILING AT THE OPENING OF ITS FEET

The present invention relates to a storage or sleeping tray or any other type of horizontal tray equipped with legs or legs or any other type of vertical movement supports lodged on the ceiling, suspended and motorized or in balance with a mobile counterweight or any other similar device. The present invention relates to a device which conditions the movement of said plate to the opening of said feet or legs.

We know beds equipped with a horizontal tray for storage or sleeping or use in other areas lodged on the ceiling, moving vertically while remaining horizontal. These trays are suspended by a system of pulleys and cables, bands or chains and sometimes guided by a wall frame, said frame also housing a counterweight or motor. The storage position corresponds to a tray in the high position, often stored in a ceiling frame for aesthetic reasons. The sleeping position corresponds to a plateau in low position, often placed on legs or jambs. These beds bring a saving of space in the houses of small surface.

We know CN202234153U which describes a bed whose tray is guided sidewall support. It is suspended by two cables placed on its median axis, the first side wall support and the second side opposite the wall bracket and the feet are opened and folded manually. It is always possible with this solution to forget to deploy the feet and thus have the tray in the sleeping position without open feet. This results in a risk of destruction of the equipment if a significant load is applied to the end of the plate side opposite the wall bracket.

We also know CN2051836U which describes a bed whose lifting tray is suspended by four motorized cables and FR2882635A1 which describes a bed whose tray is suspended by two motorized strips. In these inventions, the feet open

automatically during the descent of the sleeping tray. The automatic opening of the feet brings comfort of use during the descent of the tray to its sleeping position but has the disadvantage of not being controlled. It is possible that an uninformed person remains in the field of the opening of said feet and is hit, even injured by a foot opening automatically. In the event of a malfunction, it is always possible that the feet will seize and not open properly, resulting in a sleeping position of the cantilever tray not provided. For example, we know the claims 7 and 8 of the invention FR2882635A1 which describes a device of assisted opening of

SUBSTITUTE SHEET RULE 26 feet triggered by the descent plateau. We note that the descent of said plate is not stopped in case of failure of the opening of said feet.

We also know WO2010121788A1 which describes a bed whose storage position of the sleeping plate is vertical and retracted into a wall frame and where the plate tilts along a horizontal axis located at the bottom of said wall frame. The opening of the feet makes it possible to unlock the sleeping plate and allows the tilting of said tray from its stored position towards its lying position, but this bed does not answer the problem solved by the present invention because, on the one hand, it concerns a vertically arranged tray and therefore not offering the same comfort of use as a tray arranged horizontally on the ceiling, on the other hand the rocker of the sleeping tray is possible without the feet are completely open, not guaranteeing that the tray will rest on its feet in the sleeping position and this device does not provide any locking solution of the sleeping trays during its rocking movement from the stowed position to the sleeping position.

These trays rest in sleeping position on legs, jambs, stops, which bring stability and security. It is therefore critical to ensure that said feet, when retractable, are in place to perform their support function in the low position, which is not the case of trays that we know in the state of the art, since they do not guarantee the full opening of the feet during the descent of the plateau.

In fact we do not know any device for opening retractable feet, often rotating, which guarantees the complete opening of said feet at the time of the descent of the tray, nor does it control the moment of the opening of said feet. None of these devices also prevents the further descent of the tray in case of non-opening, late opening, or closing of the previously fully opened feet. Thus, we do not know a foot opening device that ensures that the plate rests on his feet or jambs in the low position, critical design situation.

We also do not know devices for assisting opening feet actuating voluntarily remotely said feet. This assistance to the opening of the feet is not an automatic opening of the feet as described in CN2051836U and

FR2882635A1. The automatic opening devices feet according to the two inventions mentioned above do not control the time of opening of said feet and therefore to ensure that no one is in their field of opening. None of the known devices encourage the user to be outside the opening field of said feet. None of the known devices allows the user to control an assisted opening feet remote, giving him the opportunity to verify that no third is in the field of opening of the feet.

SUBSTITUTE SHEET RULE 26 In the remainder of this document, we denote by "tray" a horizontal tray bed or storage or other use, retractable ceiling and moving in a vertical translational movement.

In the remainder of this document we will call "feet" the tray elements such as feet, legs, crutches or retractable supports, telescopic or retractable tray allowing said tray to rest on reliable and stable supports.

In the remainder of this document we call "storage position" position ^■ high plateau, "sleeping position" the low position of the tray and "intermediate position" a position between the upper and lower positions.

The device according to the invention relates to a tray suspended from a ceiling support cable, chain, fabric band and pulley or other suspension means, which can be guided by a wall frame. The device according to the invention relates to said plate equipped with at least one foot supporting it in the sleeping position. The device according to the invention makes it possible, for said plate, motorized or in equilibrium with a mobile counterweight, to remedy, on the one hand, the risk of destruction of the equipment when large loads are applied to said plate in the lying position, and secondly to control the opening of said feet, assisted or manual, conditioning the movement of the plate at the opening of said feet. Indeed, the invention comprises one or more locking devices that hold the tray in its storage position until all the feet open.

According to a particular embodiment, in order to guarantee that the user controls the movement of the plate and its environment, the invention requires that the plate locking device or devices be unlocked only at the end of the foot opening stroke. . Unlocking any of the tray locks is delayed relative to the opening of the foot so as to remain locked even when the foot is partially open. This is achieved for example by the action of a control cable of the tray locking system which is tensioned when the foot is fully open, and relaxed when the foot is partially open.

According to one embodiment, the invention ensures that a moving plate will be stopped in at least one intermediate position as soon as at least one foot is closed. Thus, the closure of a foot causes the blocking of the plate during its descent or climb movement.

According to a particular embodiment, the invention ensures that the feet remain open to ensure that the platform rests on its feet in the sleeping position. Thus the feet of the tray according to this embodiment remain open after opening as soon as the tray is not in its storage position. When the tray is in the storage position, the feet are unlocked and it is possible to retract them in the tray.

SUBSTITUTE SHEET RULE 26 The unblocking of the feet is therefore conditioned storage of the tray to its storage position.

According to an advantageous embodiment for reasons of simplicity, reliability and cost, the movement of the foot is rotatable and non-telescopic. The foot causes in its rotary opening movement a cable or a chain or a rod or other device able to unlock the blocking device of the plate.

This can be achieved by a control system, not illustrated by a drawing, such as a cable attached to the periphery of a cam of variable diameter of the axis of rotation of the foot connected to the blocking device of the plate.

Or it can be achieved by a control system, not illustrated by a drawing, such as a rod or lug secured to the foot actuating a cable or a rod connected to the tray locking device at a given moment of the rotational movement of opening of the foot.

Or it can be achieved by a control system, not illustrated by a drawing, such as a cam actuating a connecting rod, said rod actuates the blocking device of the plate.

Or it can be achieved by a cable attached to the upper part of the foot and connected to the tray locking device.

In one embodiment, opening a foot actuates a cable or rod that unlocks the tray lock. This is achieved by the removal of a bolt of a strike or several latches forming rack. When a foot closes, the locking device locks and blocks the tray in its movement of descent or rise to an intermediate position, forcing the user to reopen the feet to complete the movement started.

In a particular design mode not shown by a drawing, the bolt and strike are secured to the plate. The tray is suspended by four chains fixed at its four angles. The path of at least one chain is made so that it comes to wrap around a notched wheel secured to the plate. The bolt of the locking device engages in a tooth of said toothed wheel and blocks the movement of the plate.

In a particular embodiment, the plate has at least two feet and the opening of said feet is simultaneous for at least two of them to make this maneuver easier for the user. Simply open or close one of the synchronized feet for the other to open or close.

In an advantageous embodiment, to ensure that the user is positioned outside the opening field of the feet and that he will be able to verify that no third party is in the opening field of the feet, the opening of the feet can be controlled remotely. This is achieved by a handle pulled, tilted or rotated, able to trigger the opening of said feet. This handle will be advantageously positioned on the periphery of the tray or the wall frame and out of reach of children. The opening of all feet causes

SUBSTITUTE SHEET RULE 26 unlocking the tray. The handle will also be advantageously positioned integral with the plate, to manually accompany the movement of said plate.

The accompanying drawings illustrate the invention:

Figure 1 shows in perspective a bed having a wall frame, a ceiling frame and a tray with two retractable legs. Said tray is guided at the wall frame.

Figure 2 shows the bed seen from the side. The feet are retracted into the tray and the tray is locked in its storage position.

Figure 3 shows the bed seen from the side. The feet are open and the tray is unlocked in its storage position.

Figure 4 shows the bed seen from the side. The feet are not fully open and the tray is locked in an intermediate position.

Figure 5 shows a top view of the tray locked in the storage position by a cable control system and two rotary legs partially open and unlocked. Said feet are synchronized by a wired connection.

Figure 6 shows a partial top view of the unblocked platen by a rotary rod control system and a blocked open rotary foot. Said feet are synchronized by their common axis.

With reference to these drawings, the present invention according to FIG. 1 shows a perspective view of a tray (2) of bed (1) suspended, and motorized or in equilibrium with a mobile counterweight. Said plate has one or more locking devices (5) which hold it in its storage position until all the feet (3) open. This Figure 1 also shows a power assisted control handle (4) of said feet positioned at an angle of the plate (2) wall frame side.

In a particular application according to FIGS. 2, 3 and 4, a foot (3) of the plate (2) is rotatable and the locking system of the plate (5) is formed by a latch constituted by a bolt (51) integral with the plate (2) engaging latches (52) (53). The strikes (52) (53) are provided on a member of the rack frame (11). A control cable (61) connects the bolt (51) of the plate locking system (5) to the foot (3) of the plate (2). This cable (61) is guided by pulleys (63) (64) so as to attach to the upper part of the foot (31). When opening the rotary foot (3), the upper part of the foot (31) moves upwards and away from the pulley (63) to tension the cable (61).

In a particular application according to Figures 2 and 3, a locking system of the plate (5) according to the invention is unlocked when the foot (3) is completely open.

Figure 2 shows the tray (2) locked in its storage position. A foot (3) is retracted into the plate (3) and held in place by unrepresented magnets. The bolt

SUBSTITUTE SHEET RULE 26 (51) is engaged in the storage lock (53) in the wall frame (11). The control cable (61) connecting the bolt (51) to the upper part of the foot (31) is relaxed.

Figure 3 shows the plate (2) unlocked in its storage position. The tray can begin to descend when all its feet (3) are fully open. The fully open position of a foot (3) corresponds to an opening angle greater than the right angle relative to the retracted position to oppose the forces and moments applied by the mass of the plate (2) at its center. gravity. The control cable (61) connecting the upper part of the foot (31) to the bolt (51) is expanded at the opening of the foot (3) to the right angle and extends beyond the right angle. Thus the cable (61) retracts the bolt (51) of the striker (53) when the foot (3) is fully open.

In a particular application according to Figure 4, the plate (2) locks in the intermediate position as soon as a foot (3) is no longer fully open.

Figure 4 shows the tray (2) locked in an intermediate position. The control cable (61) connecting the upper part of the foot (31) to the bolt (51) is expanded when said foot is partially open at an angle less than or equal to the right angle relative to the retracted position. The bolt (51) engages the striker (52) under the effect of the return spring (54).

In particular applications according to Figures 5 and 6, a foot (3) has an axis (32) rotatable relative to the plate (2). A foot locking system (7) holds the foot (3) in the open position after it is opened as soon as the plate (2) is not in its storage position.

In a particular application according to FIGS. 5 and 6, the blocking device of the plate (5) between the plate (2) and the wall frame (11) is formed by a latch constituted by a bolt (51) engaging in a storage lock (53) as shown in FIG. 5, and the foot (3) remains locked open after its opening as long as the tray (2) does not return to its storage position as shown in FIG. for blocking the foot (7) is formed by a bolt consisting of a bolt (71) engaging in an elongated striker (73) so as to allow the foot (3) to start closing movement of the position

completely open to the partially open position of plus or minus the right angle. In another particular application according to Figures 5 and 6 the plate (2) has two feet (3) synchronized with each other.

Figure 5 shows the tray (2) in storage position. A foot (3) is unlocked and shown partially open at right angles to the plate. It then becomes possible to retract it into the tray (2). The unblocking of the foot (3) is conditioned to the storage of the plate (2).

According to FIG. 5, the user has begun to close the foot (3) from the fully open position to the stop of the striker (73) allowing said foot (3) to be

SUBSTITUTE SHEET RULE 26 partially open at right angles. The control cable (61) of the tray lock (5) has relaxed. The return spring (54) then engages the bolt (51) in the storage keeper (53): the blocking device of the plate (5) is locked. The bolt (51) being engaged, it tends the control cable (91) which connects the locking device of the plate (5) to the bolt (71) of the foot locking device (7). Since the cable (91) is stretched and the force of the return spring (54) is greater than the force of the return spring (74), it retracts the bolt (71) of the striker (73) and unlocks the locking system. foot (7): it is possible for the user to finish retracting said foot in the tray (2).

In addition, Figure 5 shows a synchronization system of the two feet (3) of the plate (2) opposite side to the wall frame (11) by the use of a cable (81) closed circuit in eight winding on the axes (32) of the rotating feet (3). The cable (81) is attached to the pulleys (33). Said pulleys are secured to the foot axes (32) to maintain synchronized movements of the two feet (3) over time. When the user manipulates one of the feet, the other foot follows the movement.

According to Figure 6, the foot (3) is integral with the axis (32) which rotates the rod (62) via the gear (66). The rod (62) is helically connected to the piston (55). The piston

(55) is slidably mounted within the bolt (51) by means of a key coupling. The bolt (51) is slippily connected by means of a wedge coupling with the cylindrical support

(56) integral with the plate (2). Figure 6 shows the plate (2) unlocked and free in an intermediate position. All feet (3) are locked and open at an angle greater than or equal to the right angle. It is not possible to hide them in the tray.

Indeed, when the user tries to close the foot (3) from the fully open position until abutting in the striker (73) allowing said foot (3) to be partially open at right angles, the piston (55) advances towards the wall frame (11). The compression return spring (54) then also advances the bolt (51) which abuts on the wall frame (11) because the plate (5) is in an intermediate position without striker. Since the bolt (51) has not engaged in a strike, it can not tension the control cable (91) which connects said bolt (51) of the blocking device of the plate (5) to the bolt (71) of the locking device. foot lock (7). The cable (91) thus remains relaxed and the bolt (71) remains engaged in the striker (73): the locking system of the foot (7) thus remains locked as the tray is not in the storage position. It is therefore not possible for the user to finish retracting said foot in the tray (2).

When the foot (3) is initially retracted into the plate (2), the bolt (51) is engaged in a keeper (53) not visible in Figure 6. When the user leaves the foot (3) from its retracted position the piston (55) moves away from the wall frame (11). At the beginning of the translation of the piston (55), the stop of the bolt (57) is not in contact with the piston (55). From a translation value of the piston (55) defined to correspond to the partial opening of the foot in a

SUBSTITUTE SHEET RULE 26 right angle relative to the retracted position, the stop of the bolt (57) comes into contact with the piston (55) and thus retracts the bolt (51) of its striker. The tray is unlocked and the user can move it from its storage position to its sleeping position.

At the same time as the removal of the bolt (51), the control cable (91) connecting said bolt (51) of the plate locking device (5) to the bolt (71) of the foot locking device (7) relaxes. The cable (91) being relaxed, the return spring (74) engages the bolt (71) in the striker (73) and locks the foot locking system (7): it is not possible to close said foot in the tray when said tray is no longer in its storage position.

In addition, Figure 6 shows a common axis synchronization system (32) of two rotating feet (3) of the tray opposite side wall frame (11). When the user manipulates one of the feet, the other foot follows the movement.

In a particular application not shown, the opening of the feet is actuated remotely by the assisted opening control handle (4) positioned at an angle of the plate (2) wall frame side.

The handle (4) is articulated on an axis mounted on the plate and held in its stored position by a return torsion spring. The action of the handle tends a cable connecting said handle to a cam. Said cam is articulated in rotation on an axis integral with the plate and is placed above the foot (3) in the retracted position. The shape of the cam is such that its rotation pushes the foot and releases the foot of its magnets. The cam also has a return torsion spring which makes it resume its initial position when the cable relaxes.

The device according to the invention is particularly intended for beds with retractable sleeping tray ceiling. It is an integral part of a bed designed and manufactured for the sake of optimum safety and security of the user and the components of the bed or buildings. In some cases, it is particularly adaptable to existing beds.

SUBSTITUTE SHEET RULE 26

Claims

claims

1) A storage or sleeping arrangement which comprises a horizontal tray (2) retractable ceiling movable between a low position, an intermediate position and a high position, at least one vertical guide and at least one retractable foot (3) characterized in that it has a blocking device of the plate (5) actuated by a control cable (61) moved by the foot or feet (3) configured to be unlocked by the removal of the bolt (51) of its striker driven by said cable (61) tensioned foot (3) completely open, and to be locked when said cable (61) is relaxed foot (3) closed or partially open.

2) A storage or sleeping arrangement which comprises a horizontal tray (2) retractable ceiling movable between a low position, an intermediate position and a high position, at least one vertical guide and at least one retractable foot (3) characterized in that it has a blocking device of the plate (5) actuated by a sliding piston (55) moved by the foot or feet (3) via a threaded rod (62) configured to be unlocked in a delayed manner by removing the bolt (51) from its striker driven by said piston (55) coming into contact with the bolt stop (57) completely open foot, and to be locked when the bolt stop (57) is no longer in contact with the piston (55) foot closed or partially open.

3) A storage or sleeping arrangement according to claim 1 or 2 characterized in that it comprises a foot locking device (7) in the open foot position operated by a control cable (91) moved by the locking system of a tray (5) configured to be unlocked by said cable (91) tensioned by locking the tray lock (5) when the tray (2) is in the storage position, and to be locked when said cable (91) ) is relaxed when the tray lock (5) is unlocked tray (2) out of the storage position.

4) storage or sleeping arrangement according to any one of claims 1 or 2 "characterized in that the blocking device of the plate (5) is formed by a latch consisting of a bolt (51) engaging in the storage lock (53) or a plurality of intermediate latches (52) forming a rack for locking the tray in position if a foot (3) closes.

5) A storage or sleeping arrangement according to any one of claims 1 or 2 characterized in that the blocking device of the plate (5) is formed by a bolt engaging in a tooth of a notched wheel driven in rotation by the movement of the plate.

6) storage or sleeping arrangement according to any one of the preceding claims characterized in that the or feet (3) are rotatable.

7) storage or sleeping arrangement according to any one of the preceding claims characterized in that the movements of the feet (3) are synchronized between at least two of them via a cable (81) or by their common axis (32).

8) A storage or sleeping arrangement according to any one of the preceding claims characterized in that the opening of the foot or feet (3) is actuated by a remote control comprising a handle (4), a cable and a cam.