WO2015140433A1

WO2015140433A1 - Casing device having a lifting system for an electrical household appliance such as a dishwasher or a piece of furniture having a drawer

Info

Publication number: WO2015140433A1
Application number: PCT/FR2015/050422
Authority: WO
Inventors: Jacques Valdenaire
Original assignee: Jacques Valdenaire
Priority date: 2014-03-18
Filing date: 2015-02-20
Publication date: 2015-09-24
Also published as: FR3018677B1; FR3018677A1

Abstract

The present invention relates to a casing device having a lifting system for an appliance such as a dishwasher or a piece of furniture having a drawer. Said device includes: a casing (1) having a front opening (1a) and a bottom storage element (2); a lifting system (3, 4, 5, 6); and two coupling mountings which are placed on each side of the opening and are upwardly translatable by said lifting system. Each element includes coupling means which can be deployed and are rigidly connected at the rear of the rack to the sides thereof. Said coupling means, when the element is removed, can be automatically deployed into an initial deployment and coupling position capable of engaging with the mountings such as to make it possible, on the one hand, to engage the element in order to lift it by upward translation and, on the other hand, to maintain said element in the translation position by blocking.

Description

Box device with lifting system for household appliances such as dishwashers or drawer units

The present invention relates to the field of household appliances such as dishwashers or furniture such as drawer cabinets and relates to a box device with lifting system for household appliances such as a dishwasher or furniture cabinet. drawer.

It is known that such a device or a cabinet with drawer comprises a generally rectangular prismatic box containing a chamber, according to the appliance or the cabinet, washing or storage, having two side walls, a rear wall, an upper wall , a bottom wall forming the bottom and a front opening, made in the front, allowing access to the box. Such apparatus or furniture further comprises at least one element, such as a basket or tray, which can be moved from a position inside the box to a position outside the box. In the case of a dishwasher, the front opening is generally closed by a door having a flap mounted pivotally upwardly or downwardly about a horizontal axis perpendicular to the side walls. In the case of a cabinet drawer, the front opening is generally closed by at least one vertical panel secured to the drawer, perpendicular to the plane thereof and extending, in the closed state of the drawer, in the plane of the front of the cabinet.

However, depending on the height of the element, the user may encounter difficulties, for example if it has reduced mobility, to access the element when it is close to the ground or to a lower level in the box binding for the user. Storing or removing items or dishes on or in the element can be heavy and constraining especially when they are of a high weight, which is generally the case for a dishwasher, whose dishes most Heavy goods are usually stored in the element at the lowest level.

Such an element requiring easy access will subsequently be called a lower element and may be a single element in the caisson, for example located near its bottom, or forming part of a superposition of elements in the caisson, for example a dishwasher includes generally a superposition of two baskets, namely a lower basket located in the bottom of the box and an upper basket located in the upper part of the box near the top wall.

To remedy this problem, it is known, instead of placing the appliance or the cabinet drawer on the floor as is usually the case, to position it at a height making access easier to the lower element . However, this possibility is often lacking due to the lack of space in the kitchen, related to the number of appliances to place, or in other rooms for the furniture drawer.

To remedy these drawbacks, the document

US2010 / 0045152 proposes a basket device including a lower basket positioned in the lower part of a dishwasher box, below an upper basket, a drive motor designed to drive the lower basket from its lower lower position. in the box to a high advanced position outside the box, substantially at the height of the upper rack of the dishwasher, and drive means connecting the motor and the lower basket. The box comprises two panels, or opposite side walls and, in addition, a panel, or wall, upper, a panel, or rear wall and a door to close the front panel. The drive means comprise two pairs of articulated arms, each pair of arms or rods being mounted at one of its ends on the internal face of one of the side panels and at its other end at the other end. one of the lateral sides of the lower basket. The ends of the pairs of arms mounted on the side panels are mechanically connected to shafts rotated by the motor.

However, if the device of this document US2010 / 0045152 allows to automatically perform the lifting of the lower basket in a box, especially in a dishwasher box, the lifting mechanism is mounted and extends largely in the box , which poses problems of size and maintenance of this mechanism, but also, especially in the case of a household appliance such as a dishwasher, cleaning and hygiene problems. In addition, the lower basket is driven in a pendulum movement since its storage in the box which does not allow to fully out the basket of the box to its lower level for use without lifting. In addition, leverage forces may be important when the basket contains a heavy load and can lead to malfunction or even degradation of the lifting system.

To remedy these drawbacks EPI 744656 relates to a dishwasher comprising a cabinet, or box, washing having a bottom, two opposite side walls, an upper wall, a rear wall and a front wall having a front opening, normally covered by a front door. The dishwasher is equipped with a lower basket for the dishes being cleaned. In addition, the lower basket is movable, between a first position, inside the cabinet, and a second position, mainly outside the cabinet. On the other hand, the dishwasher is provided on each side of the opening with a support such as an arm that can rotate or extend, said support being arranged to move mainly vertically, in or near the side walls, to lift the lower basket, from an external low position to an external high position and vice versa. The supports are placed under the influence of lifting means which are activated by an electric motor and comprise for this purpose two slides guided mainly vertically by guide rails.

Still in EPI 744656, such lifting means are arranged to move the supports, from an inactive position out of engagement with the lower basket, to an active position in which they are engaged with the lower basket. Furthermore, maintaining, with locking, the lower basket in the vertical translation position, that is to say in a position extending in a horizontal plane and parallel to the plane of its storage in the cabinet and therefore without tilting or tilt relative to its first position, inside the cabinet, is achieved by acting both on the rear part and on the front part of the basket, that is to say on the back of the basket at means of the lifting supports and the front of the basket by means of the door on the inner side of which bears the front edge of said basket. To carry out the lifting of the door, accompanying that of the basket, in order to maintain the front portion of the basket, the dishwasher further comprises a mechanism for rotating the door, from cables connecting the latter, through openings in the inner side of the door and springs, which synchronizes the lifting movement of the supports with the rotation of the door.

However, such a device, which requires the use of a specific mechanism of rotation of the door to maintain the basket to the front to achieve its lifting in the vertical translation position, is complex and expensive. In addition, the cables that pass through the space between the door and the front opening increase the size of the system outside. On the other hand, the solution of holding the basket by the door, in association with the supports, causes a tilting of the door which can be a little inconvenienced by the user and which disrupts the usual use of the appliance.

The present invention aims to overcome these disadvantages by providing a box device with lifting system for a household appliance such as a dishwasher or a drawer cabinet, allowing a particular user, including a person with reduced mobility , easy access to the lower element, effortlessly, and being simpler and less expensive than the current lifting systems already equipping this type of device or furniture and significantly limiting the size of the system including inside or the outside of the cabinet or cabinet.

For this purpose, the subject of the present invention is a box device with lifting system for household appliances such as a dishwasher or for a drawer cabinet, said device comprising a box of generally rectangular parallelepipedal prismatic shape with a front opening, comprising two opposite side walls and a front face having said front opening, and a lower storage or support element, such as for example a basket or tray, adapted to be moved through said opening between an internal lower position, inside the box, and an external lower position, outside the box, a lifting system comprising two attachment brackets disposed on each side of the opening and able to be moved upwards, on the one hand, from an inactive position out of engagement with the element to an active position in engagement with the element and, on the other hand, in an active position, to lift e last along a translational axis in translation upwards, from its external low position to an external high position while maintaining the element in a translational position substantially without inclination relative to its internal or external lower position, and characterized essentially in that each lower member has two lateral sides each extending in a plane substantially parallel to the side walls between a front side and a rear side and comprises deployable attachment means mounted on the lateral sides in the vicinity on the rear side, said hooking means being adapted to be automatically deployed, upon exit of the element, from a retracted or folded position in or near the corresponding lateral side to an initial position of deployment and hooking adapted to cooperate in engagement with the supports, in the state of their active position, so as to allow, on the one hand, the taking of the element for its lifting by translation upwards and on the other hand its holding, with locking, in the translational position and in that it comprises centering means of the lower element intended to center the latter in an external low position allowing the initial position of deployment and hooking of said means hooking.

The invention will be better understood, thanks to the following description, which relates to at least one preferred embodiment, given by way of non-limiting example, and explained with reference to the attached schematic drawings, in which:

- Figure 1 shows a perspective view of a device according to the invention equipping a dishwasher, in a preferred embodiment of the invention, in the lower internal position of the lower basket in the bottom of the box,

- Figure 2 shows a perspective view of the device shown in Figure 1, in a configuration in the process of output of the lower basket to its lower external position of attachment and start deployment or pivoting of the flaps abutting against the edges supporting side edges,

FIG. 2a shows a detail view corresponding to the part surrounded by a circle in FIG. 2,

FIG. 3 shows a perspective view of the device represented in FIG. 2, in a more advanced basket output configuration and in a more advanced flap deployment state,

FIG. 3a shows a detail view of the part surrounded by a circle in FIG. 3,

FIG. 4 shows a perspective view of the device represented in FIG. 1, in the fully extended state of the lower basket resting on the open door and centered in an external low position allowing the initial deployment and hooking position of the means. hanging out of engagement with the supports, FIG. 4a shows a detail view corresponding to the part surrounded by a circle in FIG. 4,

FIG. 4b shows a rear view of the part shown in FIG. 4a,

FIG. 5 shows a perspective view of the device shown in FIG. 1, in the raised state of the lower basket, being lifted by a displacement either upwards, uphill, up to the height of the upper basket, down, downhill, to its outer low position,

FIG. 5a shows a detail view corresponding to the part surrounded by a circle in FIG. 4,

FIG. 5b shows a plan view of the part shown in FIG. 5a;

FIG. 6 shows a perspective view of the device represented in FIG. 1, in the raised state of the lower basket up to the height or level of the upper basket remaining in the box,

- Figure 7 shows a perspective view of a device according to the invention equipping a cabinet with two drawers, upper and lower, in a preferred embodiment, in the complete output state of the lower drawer containing a basket or a bottom tray resting and centered on its bottom, in the state of deployment of the flaps in the initial position of deployment and hooking,

FIG. 7a shows a detailed view corresponding to the rear part of the slide shown in FIG. 7, during deployment of the flaps in sliding contact with the support and sliding edges of the side edges delimiting laterally the front opening. ,

FIG. 7b shows a detail view corresponding to the part surrounded by a circle in FIG. 7,

- Figure 7c shows a sectional view of the cabinet shown in Figure 7 in a sectional plane parallel to its side walls, in the raised state of the tray or the lower basket, above the bottom of the lower drawer, with a moving the tray or basket up to the height or level of the basket or upper tray left in the box,

FIG. 8a shows a schematic cross-sectional view of the device represented in FIG. 1, in a plane of section parallel to the bottom of the box, said device being equipped with the moving the lower basket, in the lower internal position of the latter in the box,

FIG. 8b shows the device represented in FIG. 8a in the course of automatic output of the lower basket to its external lower hooking position thanks to the displacement system,

FIG. 8c shows the device represented in FIG. 8b in the lower external position of the lower basket,

- Figure 8d shows a cross-sectional view of the part of the device shown in Figure 8c, in a sectional plane perpendicular to the bottom of the box.

- Figure 8e shows a detail corresponding to the part surrounded by a circle in Figure 8d.

The figures show a box device with lifting system, according to the present invention, for household appliances such as a dishwasher or for a drawer cabinet, said device comprising:

a box 1 of generally rectangular parallelepipedal prismatic shape, with a front opening, comprising two opposite side walls 1b and a front face having said front opening, and a lower storage or support element 2, such as for example a basket or a tray, able to be moved, manually or automatically in a motorized manner, through said opening between a lower internal position, inside the box, and an external lower position, outside the box,

a lifting system 3, 4, 5, 6 comprising two hooking supports 3 disposed on each side of the opening 1a and able to be displaced upwards, on the one hand, from an inactive position out of engagement with the element 2 to an active position in engagement with the element 2 and, on the other hand, in the active position, to raise the latter along a translational axis (X) in translation upwards, from its low position external to an external high position, that is to say out of the box, while maintaining the element in a translational position substantially without inclination relative to its internal or external low position.

According to the present invention, in such a device each lower element 2 has two lateral sides 2a each extending in a plane substantially parallel to the side walls 1b between a front side 2d and a rear side 2c and comprises hooking means 7 Deployable mounted on the lateral sides near the rear side 2c. In furthermore, the attachment means are adapted to be deployed automatically, when the element 2 leaves, from a retracted or folded position in or near the corresponding lateral side to an initial position of deploying and fitting snap fit to cooperate in engagement with the supports 3, in the state of their active position, so as to allow, on the one hand, the engagement of the element 2 with a view to its lifting by translation upwards and, on the other hand, part, its holding, with locking, in the translation position.

Still according to the present invention, the device further comprises centering means 10a, 13, 14, 9a, 9d of the lower element 2 which are provided to center the latter in an external low position allowing the initial position of deployment and hooking attachment means 7 deployable.

In a preferred embodiment the hoisting system 3, 4, 5, 6 may comprise:

two sliders 3 each capable of forming one of the hooking supports 3, that is to say that each support 3 can be integrated in one of the sliders 3 in one piece with the slider 3,

- Guiding means 4, such as rails or slides, preferably mounted on the outer faces of the side walls 1b near the front opening, to guide the movement up or down each slide ,

- Drive means 5, such as cables, straps, chains or belts, for moving the slides,

- Motor means 6, such as for example a motor or an electric gear motor, and preferably such motor means 6 fitted to a tabular motor, or a tabular gear motor, blind or shutter, and to activate the means of 5. Such a motor, or gear motor, tabular may comprise a motorized winding tube 5a and / or mechanical braking means and may be for example of the type described in document F 2610668 or in document EP0976909.

FIGS. 1, 2, 3, 4, 5, 6 show, more particularly, drive means 5 consisting of straps wound on the tube 5a rotated by the electric motor 6 which can be housed, in particular in the case where it is of the aforementioned tabular motor type, in the tube 5a partially or totally.

The lifting system may further comprise control means for manually or automatically controlling the drive means 6 for lifting, by an upward or downward movement, of the element 2. Such control means can for example be a remote control for a remote control or a control button, type on / off switch, which can be located in the vicinity of the device or furniture or on them.

In a preferred embodiment of each support

3 hooking, the latter may comprise a hooking edge 3a and the hooking means may consist of two fastening flaps 7 each comprising a hooking flange 7a and being each mounted pivoting around a pivot 7b substantially parallel to said translation axis X, on one of the two lateral sides of the element 2 so that it can be deployed, at the exit of the element 2, from a closed position, ie a folded or folded position, in the plane of the lateral side 2 corresponding or in a plane substantially parallel to the latter, to an open position, that is to say unfolded or deployed, preferably with an opening of the order 90 ° relative to their folded or folded position, said open position corresponding to the initial position of deployment and hooking (see in particular Figures 2a, 3a, 4a, 4b, 5a, 5b, 7a, 7b).

To allow the positioning of each flap 7 in the plane of the lateral side 2a concerned of the lower element 2, it may comprise a housing 2b, which may be formed by a recess in the corresponding lateral side 2a, allowing recess or receive the flap 2 in the folded or folded position (see in particular (see in particular Figures 2a, 3a, 4a, 4b, 5a, 5b, 7a, 7b) Furthermore, preferably, as can also be seen on these Figures, each housing 2b can be provided to also receive one of the corresponding pivots 7b.

Preferably, the front opening may be delimited laterally by two side edges extending substantially in the plane of the front opening la and each hooking edge 3a can extend vis-à-vis and at a distance one of said songs to leave a passage space for the hooking flange 7a. In addition, each hooking flange 7a may comprise, on the one hand, a bearing face and positioning to the attachment 7c which can be provided to come to flatten or abut, when deploying the flaps 7 against the edge of the corresponding so as to position each flap 7 in the initial position of deployment and attachment and, d on the other hand, a hanging space 7d which can be provided, when taken in the active position, to receive the engaging edge 3a of the corresponding support 3 which then engages in said space. Furthermore, each support 3 may comprise a tilting support and locking face 3b and each flap 7 may comprise a tilting support and blocking face 7e which may be provided to be pressed against the bearing face. and 3b tilting blocking of the corresponding support 3 so as to achieve, in association with the insertion of each hooking edge 3a in the hanging space 7d, the catch and the holding, with locking, in the translational position the lower element 2 that is to say by preventing any tilting of the latter.

In a particular form facilitating engagement, the portion of each hooking flange having the support and positioning face 7c can be inclined or sloping.

Furthermore, each flap 7 may consist of a flat piece of generally rectangular shape having two opposite faces, internal and external. One of the sides of said piece can join the two opposite inner and outer faces and can be pivotally mounted on the corresponding pivot 7b and one of the sides of the workpiece, substantially perpendicular to the pivoting side, can be extended on the front side external, by a rim of L-shaped cross-section which can form the hooking flange 7a. In addition, the internal space of the L can form the corresponding hanging space 7d, while the outer face of each piece can form, at least partially, the support and blocking face 7e tilt (see particular figures 2a, 3a, 4a, 4b, 5a, 5b, 7a, 7b).

Each flap 7 may be associated with a return means, such as a spring blade, which may be able to exert a restoring force on the flap 7 forcing the latter to open so as to allow its automatic deployment to its position open hooking at the exit of the element 2 to its lower external hanging position, that is to say to its external lower position for the initial position of attachment and deployment of the flaps 7.

In a preferred form of the box 1, it may comprise two ridges ld support and sliding can be formed each by the intersection between one of the edges and the inner face of one of the side walls 1 of the box 1. In addition, each flap 7 may be provided, when pivoted, at the opening or at the closing, to be in sliding contact, where appropriate by its outer face, against one of the edges, so that each edge ld can form a stop edge having the effect in retracted configuration of the lower element 2 , that is to say after stalling or release of the flaps 7 of their respective supports 3, from its lower external position to its lower internal position, to fold down each flap 7 by sliding of the latter pivotally against the corresponding edge, against the restoring force of the return means.

Preferably, for a better security and a good functioning of the device according to the invention, this one can comprise detection means 8 making it possible to detect the initial position of deployment and hooking of the attachment means 7 (figure 5b) to authorize and control the movement of the supports 3 once said detection has been carried out, for example by sending a detection and control signal to the motor means 6.

On the other hand, in the case where the device according to the invention further comprises at least one element 2 'higher, the invention may provide that the device may further comprise detection means, not shown, such as for example a position sensor which can for example be fixed on the inner face of the rear wall of the box 1, the upper element 2 'to detect the retracted position of the latter in the box 1 so as to allow lifting, by upward movement of the lower element 2 when the upper element 2 'is in said position retracted into the caisson 1

In addition, preferably, the lifting system may comprise a high-end fm detector 6a for detecting the up position of the lower member 2 during its lifting and may comprise a low-end fm detector 6b, not shown. , making it possible to detect the lower external position of the lower element 2 (see in particular FIGS. 1, 4 and 5). The low stroke fm detector may be provided or adjusted to meet a dimension necessary for the release of the flaps 7, that is to say by detecting a lower position of the release of the supports 3 located at a level lower than that putting them in position. snap hook with the flaps 7, in order to release the element 2 of its attachment during its descent, that is to say by putting it out of reach with the supports 3 to allow the re-entry of the lower element 2 in the box 1. The upper limit switch 6a can be adjusted according to its environment (worktop). These two up and down detectors 6a and 6b can be positioned so as to be made accessible outside the casing 1.

Preferably, the up and down limit switches 6a, 6b can be housed in the, or mounted on or near the tube 5a of a motor, or gear motor, tabular.

Referring now to FIGS. 8a, 8b, 8c and 8d it can be seen that the device may further advantageously comprise a motorized automatic movement system 9 of the lower element 2 for remotely controlling its movement from its internal low position in the casing 1 to its external lower hanging position on the outside of the latter. Such a system makes it possible to further facilitate access to the lower basket by a person with reduced mobility by preventing him from manually pulling out the lower basket 2 (FIGS. 8a, 8b, 8c, 8d).

As can be seen again in FIGS. 8a, 8b, 8c and 8d, 8e, the lower element 2 may have a rear side 2c perpendicular to its lateral sides. Furthermore, in a preferred form of the present invention, the displacement system 9 may comprise, on the one hand, a slide 9d, mounted on the rear side 2c or made in the latter or made in the element 2, for example in its bottom, near the rear side 2c, the slide 9d being able to extend along the rear side 2c and, on the other hand, a rotary drive arm 9a which can extend, in the bottom of the box 1, under the element 2, and can be mounted, on the one hand, at one of its ends, pivotally about a pivot 9b substantially parallel to the translation axis X and, secondly, to its another end, sliding, through a sliding member 9c, in the slide 9d. The system may further comprise a drive motor 9e, which may be an electric motor, (FIG. 8d) connected to the pivot 9b to drive it in rotation and thereby the arm 9a with the effect of moving the element 2 lower in or out depending on the direction of rotation of the arm. The slide 9d may be a light formed in the bottom of the lower element 2 substantially parallel to its rear side 2c and the sliding part 9c may be a finger or an axis, preferably substantially parallel to the pivot 9b, and which is inserted in the light to slide in the latter and perform the driving of the element 2 by the movement of the arm 9a (Figure 8e).

Note that, in the case where the device according to the invention is intended to equip a dishwasher or a household appliance with a similar box 1, the box 1 for dishwasher, may comprise a door 10 tilting up or downwards, in a manner known in the present dishwashing machines, to allow the closure of the front opening and to support, in the lower external position, the lower element 2, such as for example a basket, preferably mounted on rollers 2e, that is to say in the open state of the door 10 and resting on its inner face (FIGS. 1, 2, 2a, 3, 3a, 4, 4a, 4b, 5, 5a, 5b, 6 , 7, 7a, 7b, 8a, 8b, 8c).

Referring now to FIGS. 7, 7a, 7b, it can be seen that in the case where the device according to the invention is intended to equip a drawer cabinet, the box 1 for a drawer cabinet may comprise at least one drawer 1 1 slider comprising a bottom supporting the lower member 2 and side rails, not visible in the accompanying figures, for sliding the drawer 1 1 for its return or exit from the box 1. The slides may each comprise, in a known manner , a limit stop limiting the displacement output of the drawer. The element 2 can thus rest on the bottom of the drawer in its internal and external low positions and in particular in its inoperative external locking position out of engagement by the supports 3. The or each drawer 1 1 may further comprise a panel 1 1 a, substantially perpendicular to the bottom, allowing to close, in the retracted position of the drawer 1 1, at least partially, the front opening of the box 1.

In the case of a box 1 for dishwashers or the like, the centering means of the lower element 2 may consist of a flange 10a, or a shoulder, stop and / or, where appropriate, in the arm 9a and the drive slide 9d. The stop flange 10a can be made in the inner face of the door 10 and can form a limit stop against which the element 2 comes into abutment when it is released into the external lower hanging position, for example by its 2nd wheels which come into abutment against the rim 10a stop. Thus, the centering of the element 2, in an external low position allowing the position of deployment and hooking of the attachment means 7, can be achieved by the positioning at the output of the lower element 2 in its external position of end of stroke in abutment against the stop edge designed for this purpose and / or, where where appropriate, by the end of travel of the arm 9a in the slide 9d of the element 2 (FIG. 4).

In the case of a drawer cabinet 1, the lower member 2 may comprise a lower outer face forming a contact surface with the bottom of the drawer 1 1 when the lower member 2 rests on said bottom and the means for centering the lower element 2 may consist, on the one hand, pins 13 or other male interlocking element fixed on the outer face of the bottom of the lower element 2 and holes 14 formed in the inner face the bottom of the drawer, so as to center the element 2 on the bottom of the drawer and, secondly, in each limit stop end of the side rails. Thus, the centering of the element 2 in an external low position allowing the position of deployment and hooking of the attachment means 7 can be achieved by the end position of the drawer through the end stops and by the centering of the element 2 on the bottom of the drawer through the interlocking of the pins 13 in the holes 14. On the other hand, it will be understood that when the element 2 is brought from its outer high position (Figure 7c) at its lower external position (Figures 7, 7a, 7b) resting on the bottom of the drawer, the latter is automatically centered on the bottom, for a new lifting upward movement, by the interlocking of the pins 13 in the corresponding holes 14.

It will be understood that the present invention may provide an electronic control, not shown, designed to receive, by wire or radio, the various signals from the detection means or other position sensors or end-of-travel aforementioned, for analyzing said signals and for sending, by wire or radio, control signals to the motor means of the lifting system and / or the motorized automatic moving system.

An exemplary operating principle using at least one of the means described above, may be the following in several phases from the lower internal position of the lower element 2 in the chamber 1 until it returns to said position after its lifting, by an upward movement, to a determined height for example at or one of the upper elements 2 ', once the door 10 of the apparatus opened or the drawer of the open drawer cabinet:

in a first phase: to produce the output of the lower element 2 from its internal low position in the caisson 1 to the external low position where the element 2 can rest on the inner face of the door 10 of the appliance (FIGS. 2, 3, 4) or on the bottom of a drawer 1 1 of a drawer furniture (FIG. 7) being centered by the centering means 10a or 13, 14 in the external lower hooking position allowing the position of deployment and attachment of the flaps 7, while said output, which can be manual or, where appropriate automatic to using the motorized displacement system 9, (figures let 8a), is accompanied by the automatic and progressive deployment of the flaps 7 to their initial position of deployment and hooking, under the effect of the return means 7b, in support against the edges ld side edges (Figures 2, 2a 3, 3a, 7a, 8b),

in a second phase: to detect, by the detection means 8 concerned, the lower element 2 in its external low position ready for lifting (external lower position allowing the initial position of deployment and hooking of the attachment means 7 ), that is to say when each flap 7 is in contact or in abutment, thanks to its bearing surface 7c, against the bearing face 3b of each support 3, (FIGS. 4, 4a, 4b, 7 , 7b, 8a), then to be controlled, by means of the control means, if necessary after having detected by the detection means provided for this purpose the retracted position of the at least one upper element 2 ', the operation of the drive means 6 (start) which, via the drive means 5, can cause the upward movement of the supports 3 (slides) along the guide means 4 (slides) to engage with the shutters 7 and more particularly in contact snap with their edges of hanging 7a,

- In a third phase: to achieve the lifting (upward movement) of the lower element 2 by the upward movement of the supports 3 in engagement with the flaps 7, for example to the top level of the box 1 which can be that of one or more of the upper elements 2 '(FIGS. 5, 5a, 5b),

in a fourth phase: to detect the external high position of the lower element 2, for example by means of the high limit detector 6a,

- In a fifth phase: to control the motor means 6 to achieve the descent of the lower element 2 downwards, that is to say to its lower external position can rest on the door 10 in the state open of the latter, for example by releasing the straps 5 so as to lower the lower element 2 by its own weight, to the lower position of the support 3 disengaging the latter with the lower element 2 and the latter in its lower external position resting on the door 10 of the appliance (Figures 2, 3, 4) or, with centering on the bottom of the drawer 1 1 of the drawer cabinet (Figure 7), said lower position of the supports 3 can be detected by the low stroke fm detector 6b which can then be provided to automatically control the stopping of the drive means 6

- In a sixth phase: to enter manually or, if necessary automatically through the motorized displacement system 9, the element 2 from its outer low position out of engagement with the supports 3 to its lower internal position in the casing 1 during said reentry, the flaps 7 are then forced, upon retraction of the lower element 2, to fold, or fall back, automatically against the side walls 2a of the lower element 2 due to the pressure exerted on the flaps 7, against the biasing means, by their permanent sliding contact, upon retraction of the lower element 2, against the edges ld internal songs forward.

The present invention can also further provide at least one counterweight 12 fixed on or integrated in each support 3 to fully release the flaps 7 when they are in their initial position of deployment and attachment and that the lower element 2 is in its lower external position resting on the tilting door or on the bottom of the drawer. Such counterweights 12 have the effect of always allowing the downward movement of the supports 3, when the straps 5 are released from their drive motor, to a low level where they are no longer in contact with the flaps 7. The counterweights thus make it possible to compensate the frictional forces of the supports 3 on the slides 4 which can block the supports 3 to a higher level where they would be in engagement with the flaps 7 by preventing their release in order to allow the entry of the element 2 into caisson 1 (FIGS. 1, 2, 2a, 3, 3a, 4, 4a, 4b, 5, 5a, 5b, 6, 7, 7a, 7b).

Of course, the invention is not limited to the embodiment described and shown in the accompanying drawings. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention defined by the claims.

Claims

EVENDICATIONS

1) Box device with lifting system for household appliances such as a dishwasher or furniture drawer, said device comprising a box (1) of generally rectangular parallelepipedal prismatic shape, with opening (la) frontal, comprising two walls opposing sides (1b) and a front face having said front opening (1a), and a lower storage or support member (2), such as a basket, tray or grill, adapted to be moved through said opening between a lower internal position, inside the box, and an external lower position, outside the box, a lifting system (3, 4, 5, 6) comprising two support brackets (3) arranged each side of the opening (la) and able to be moved upwards, on the one hand, from an inactive position out of engagement with the element (2) to an active position in engagement with the element ( 2) and, on the other hand, in active position, to lift this last according to a translation axis (X) in translation upwards, from its external low position to an external high position while maintaining the element in a translation position substantially without inclination relative to its internal or external lower position ,

characterized in that each lower element (2) has two lateral sides (2a) each extending in a plane substantially parallel to the side walls (1b) between a front side (2d) and a rear side (2c) and comprises fastening means (7) deployable mounted on the lateral sides near the rear side (2c), said attachment means being adapted to be automatically deployed at the exit of the element (2) from a retracted position or folded in or near the corresponding lateral side into an initial position of deployment and hooking adapted to cooperate in engagement with the supports (3), in the state of their active position, so as to allow a on the other hand, grasping the element (2) with a view to lifting it upwardly and, secondly, holding it in the translational position with locking, and in that it comprises centering means (10a, 13, 14) of the el lower element (2) provided to center the latter in an external low position for the initial position of hooking and deployment of said hooking means. 2) Device according to claim 1, characterized in that the lifting system (3, 4, 5, 6) comprises two sliders (3) each adapted to form one of the supports (3), guide means ( 4), such as rails or slides, preferably mounted on the outer faces of the side walls (1b) near the front opening (1a), for guiding the upward or downward movement of each slider , drive means (5), such as cables, chains or belts, for moving the sliders and motor means (6), preferably motor means (6) fitted to a tubular motor or geared motor for shutter rolling or blind, for activating the drive means (5).

3) Device according to claim 1 or claim 2, characterized in that each support (3) comprises a hooking edge (3a) and the attachment means consist of two flaps (7) of attachment each comprising a hooking flange (7a) and being mounted each pivoting around a pivot (7b) substantially parallel to said translation axis (X), on one of the two lateral sides of the element (2) so as to be able to to be deployed, when the element (2) leaves, from a closed position, ie a folded or folded position, in the plane of the lateral side (2) corresponding or in a plane substantially parallel thereto , to an open position, that is to say unfolded or deployed, preferably with an opening of the order of 90 ° with respect to their folded or folded position, said open position corresponding to the initial deployment position and hanging.

4) Device according to claim 3, characterized in that the front opening (la) is delimited laterally by two side edges (le) extending substantially in the plane of the front opening (la) and each edge of hooking (3a) extends opposite and at a distance from one of said edges, in that each hooking flange (7a) comprises, on the one hand, a support and positioning face to the hooking (7c) provided to come flat or abut, when deploying the flaps (7) against the edge (the) corresponding so as to position each flap (7) in the initial position of deployment and hooking and, on the other hand, a gripping space (7d) provided, when engaged in the active position, to receive the fastening edge (3a) of the corresponding support (3) and in that each support (3) comprises a support and tilting locking face (3b) and each flap (7) comprises a tilting support and locking face (7e) intended to be pressed against the bearing surface and tilting blocking (3b) of the support (3) corresponding to achieve, in combination with the insertion of each hooking edge (3a) in the hooking space (7d), the gripping and holding, with locking, in the translational position of the element (2).

5) Device according to claim 4, characterized in that each flap (7) consists of a flat piece of generally rectangular shape having two opposite faces, inner and outer, one side of said piece joining said two opposite faces being pivotally mounted on the corresponding pivot (7b) and one of the sides of said workpiece, substantially perpendicular to said pivoting side, extending on the outer side thereof by an L-shaped cross-section rim forming the hooking flange (7a) , the internal space of the L forming the corresponding hanging space (7d), while the outer face of each piece forms, at least partially, the support face and blocking rocker (7e).

6) Device according to any one of claims 3 to 5, characterized in that each flap (7) is associated with a biasing means, such as a spring blade, capable of exerting a restoring force on the shutter (7) forcing the latter to open so as to allow its automatic deployment to its open hooking position at the exit of the element (2) to its lower external hanging position.

7) Device according to claim 6, characterized in that it comprises two edges (ld) support and sliding each formed by the intersection between one of the songs (the) and the inner face of one side walls (1) of the box (1) and in that each flap (7) is provided, when pivoted, to open or close, to be in sliding contact, if necessary by its face external, against one of said edges, so that each edge (ld) forms an abutment edge having the effect in retracting configuration of the element (2) from its lower external position to its lower internal position, to fold down each flap (7) by sliding of the latter pivotally against the corresponding edge, against the restoring force of the return means.

8) Device according to any one of claims 1 to 7, characterized in that it comprises detection means (8) for detecting the initial position of deployment and attachment of the hooking means (7) for authorizing and controlling the movement of the supports (3) once said detection is performed. 9) Device according to any one of claims 1 to 8, characterized in that it further comprises a member (2 ') and further in that it further comprises means for detecting the element (2 ') upper to detect the retracted position of the latter in the box (1) so as to allow lifting of the element (2) lower when the element (2') upper is in said position retracted into the box ( 1).

10) Device according to any one of claims 1 to 9, characterized in that it further comprises a motorized automatic displacement system (9) of the lower element (2) for remotely controlling its displacement since its lower internal position in the box (1) to its external lower hooking position.

1 1) Device according to claim 10, characterized in that the lower element (2) has a rear side (2c) perpendicular to its lateral sides and in that the displacement system (9) comprises on the one hand, a slide (9d), mounted on the rear side (2c) or made in the latter or made in the element (2) below, for example in its bottom, near the rear side (2c), the slide (9d) extending along the latter and, on the other hand, a rotary drive arm (9a) extending, in the bottom of the box (1), under the element (2), and being mounted, on the one hand, at one of its ends, pivoting about a pivot (9b) substantially parallel to the translation axis (X) and, on the other hand, at its other end, in sliding direction, by intermediate of a sliding part (9c) in the slide (9d), said system further comprising a drive motor (9e) connected to the pivot (9b) for driving it in rotation and by the same the arm (9a) with the effect of the displacement of the lower element (2) in or out in the direction of rotation of the arm (9a).

12) Device according to claim 1 1, characterized in that the slide (9d) is a slot in the bottom of the element (2) lower substantially parallel to its rear side (2c) and the sliding part (9c ) is a finger or an axis, preferably substantially parallel to the pivot (9b), and which is inserted into the light to slide in the latter.

13) Device according to any one of claims 1 to 12, characterized in that the box (1) is a box for dishwasher and comprises a door (10) tilting upwards or downwards to allow closure the front opening (1a) and support, in the lower external position, the lower element (2), such as for example a basket, of preferably mounted on rollers (2e), and in that the centering means of the lower element (2) consist of a stop flange (10a) and / or, if appropriate, in the arm (9a) and the drive slide (9d), said flange being formed in the inner face of the door (10) so as to form a limit stop fm against which abuts the lower element (2) when it leaves the external low position, for example by its rollers (2e) which abut against said flange, and / or, where appropriate, by the fm run of the movement of the arm (9a) in the slide (9d).

14) Device according to any one of claims 1 to 12, characterized in that the box (1) is a drawer cabinet and comprises at least one slide (1 1) sliding comprising a bottom (the) supporting the lower element (2) and lateral slides making it possible to slide the drawer for its retraction or its exit from the box (1), said slides each including a limit stop of travel limit limiting the displacement at the exit of the drawer and in that the element (2) rests on said bottom (1c) in its internal and external low positions and in particular in its inactive position out of engagement by the supports (3) and in that the lower element (2) comprises a lower outer face forming a contact surface with said bottom (1c) when the lower element (2) rests on the latter and the centering means of the lower element (2) consist, on the one hand, of trunnions (13) of centering, or other male interlocking element, fixed on said lower outer face and in holes (14) formed in the inner face of the bottom (1e) of the drawer for receiving said trunnions, so as to be able to center the element (2) below on the bottom (the) of the drawer and, on the other hand, in each stop fm run lateral slides.