FR3110362A1 - Freestanding desk with folding top - Google Patents

Abstract

The invention relates to a freestanding desk (2) with a folding top comprising: - a main structure (3) comprising a rear wall and two side walls (5), - a top (7) comprising a first flat, fixed and horizontal portion, a second movable flat portion (9) and a third movable flat portion (10), the second flat portion (9) and the third flat portion (10) being movable between a folded position in which the second flat portion (9) and the third planar portion (10) are located in the internal space and an unfolded position in which the second planar portion (9) and the third planar portion (10) are aligned with the first planar portion (8); - a movable support foot (13), the support foot (13) being movable, in a folding/unfolding direction (18) normal to the rear wall, between a rear position in which the support foot (13) is located in the internal space and a front position in which the support foot (13) is located at a distance from the main structure (3), the movement of the support foot (13) from the rear position to the front position causing the movement of the second and third planar portions from the folded position to the unfolded position and vice versa, - an extendable support element, the extendable support element being located under the plate (7) and being movable, when the foot of the support (13), from a retracted position to an extended position in which the second planar portion (9) and the third planar portion (10) rest against the extensible support element. Figure for the abstract: Fig. 3

Description

Folding Top Freestanding Desk

The invention relates to the field of office furniture and in particular to that of offices. In this area, there are two main types of desks, desks with a fixed top which, once mounted, do not offer freedom of movement for the top, and desks with a folding top which, once mounted, allow the top to take a plurality of positions depending on the situation.

Technology background

The document US4560101 describes a desk with a folding top designed to be fixed to a wall such as a wall.

The desk illustrated in this document comprises a main structure formed by a rear wall, two side walls and a bottom wall, and a top formed by a fixed portion which is screwed to the rear wall and a movable portion linked to the fixed portion.

The movable portion is rotatable from an elevated position where it is aligned with the fixed portion so as to form a flat plate to a retracted position where the latter is parallel to the rear wall. In order to block the movable portion in the raised position, it is equipped with a movable leg which extends diagonally in the raised position and bears against the rear wall.

However, such a desk is necessarily attached to a wall to be stable during use and therefore cannot be self-supporting. Indeed, when using and pressing a user on the mobile portion, the desktop could topple as a whole. In addition, in such a desk, the mobile portion of the tabletop is cantilevered so that its length is limited to avoid excessively stressing the structure during use, for example the application of a weight on the end of the mobile portion, and thus risk damage.

It is also known for freestanding desks whose top is modular. However, these are expensive, complex during use and/or require additional assembly steps.

The invention aims to remedy the drawbacks of the prior art.

Summary

An idea underlying the invention is to produce a self-supporting desk with a folding top, that is to say one that does not require attachment to another structure such as a wall, that can be spacious and stable when use and compact when storing.

Another idea underlying the invention is to simplify the opening/closing kinematics of such a freestanding desk with a folding top.

According to one embodiment, the invention provides a freestanding desk comprising:
- a main structure comprising a vertical rear wall and two vertical side walls, the two side walls being fixed on either side of the rear wall so as to define an internal space,
- a plate comprising a first planar portion, fixed and horizontal, having one end fixed to the rear wall, a second movable planar portion and a third movable planar portion, the plate also comprising at least a first pivot connection connecting the first planar portion and the second planar portion and at least one second pivot connection linking the second planar portion and the third planar portion, the second planar portion and the third planar portion being movable between a folded position in which the second planar portion and the third planar portion are located in the internal space of the main structure above the first flat portion and an unfolded position in which the second flat portion and the third flat portion are aligned with the first flat portion so as to form a flat work surface;
- a movable support foot comprising a lower end intended to be in contact with the ground and an upper end linked by means of at least one third pivot connection to the third flat portion, the support foot being movable, in a folding/unfolding direction normal to the rear wall, between a rear position in which the support foot is located in the internal space of the main structure so as to form a lower front wall portion for the main structure and a front position in which the support foot is located at a distance from the main structure, the movement of the support foot from the rear position to the front position causing the movement of the second and third planar portions from the folded position to the unfolded position and vice versa,
- an extendable support element comprising a first end linked to the main structure and a second end linked to the support leg, the extendable support element being located under the top and being mobile, when the support leg moves from its position rear position to its front position, from a retracted position to an extended position, in which the second planar portion and the third planar portion rest against the extensible support element, and vice versa.

Thanks to these characteristics, the tray can take an unfolded position in which the work surface is formed of three tray portions so as to obtain a spacious surface, while also being able to take a folded position which is compact and makes it possible to greatly limit the office clutter when not in use. Thus, the desk has the shape of a compact cabinet when the top is in the folded position and has the shape of a desk when the top is in the unfolded position.

In addition, the main structure and the support leg make it possible to obtain a stable self-supporting structure in the unfolded position of the top even though the dimension of the desk in the folding/unfolding direction has been greatly increased. Indeed, the main structure has in the unfolded position of the plate a foot function opposite to the support foot.

The extendable support element, on the other hand, allows the tabletop to be supported along its entire length in the folding/unfolding direction when the support leg is in the forward position so as to avoid any risk of damage during use.

The first fixed portion of the top contributes to the general rigidity of the desk by forming a bracket for the main structure.

Finally, in the unfolded position of the tray, the space located under the tray and the extendable support element is left free so as not to interfere with the legs of a user during use.

According to embodiments, such a freestanding desk may comprise one or more of the following characteristics.

According to one embodiment, in the extended position, the first planar portion rests against the extensible support element.

According to one embodiment, the two side walls are flat and spaced from each other in a transverse direction.

According to one embodiment, the at least one first pivot link, the at least one second pivot link and the at least one third pivot link comprise an axis of rotation in the transverse direction.

According to one embodiment, the at least one first pivot connection, the at least one second pivot connection and/or the at least one third pivot connection are made using a hinge.

According to one embodiment, the at least one first pivot connection is configured to allow an angular displacement substantially equal to 90° of the second flat portion relative to the first flat portion.

According to one embodiment, the at least one second pivot link is configured to allow an angular displacement substantially equal to 180° of the third flat portion relative to the second flat portion.

According to one embodiment, the at least one third pivot link is configured to allow an angular displacement substantially equal to 90° of the third flat portion relative to the support foot.

According to one embodiment, the at least one first pivot link and the at least one second pivot link are located on either side of the second planar portion.

According to one embodiment, the at least one second pivot link and the at least one third pivot link are located on either side of the third flat portion.

According to one embodiment, the plate comprises two first pivot links distributed in the transverse direction, and two second pivot links distributed in the transverse direction.

According to one embodiment, the freestanding desk comprises two third pivot links distributed in the transverse direction.

According to one embodiment, the two side walls are parallel.

According to one embodiment, the extendable support element is located under the tray in a horizontal plane.

According to one embodiment, in the folded position, the second flat portion and the third portion are located against each other in vertical planes.

Thus, in the folded position, the tray takes up minimal space in the folding/unfolding direction so as to limit the size of the desk in this position.

According to one embodiment, the side walls of the main structure are spaced from each other in a transverse direction, the extensible support element being fixed in the middle of the rear panel and in the middle of the support leg in the direction transverse so as to be substantially in the middle of the tray in the unfolded position.

Thus, the extendable support element supports the tabletop in a balanced manner.

According to one embodiment, the extensible support element comprises a plurality of bars articulated in a horizontal plane, two adjacent bars being connected to each other using a vertical axis pivot connection.

For example, the expandable support member may include between three to five hinged bars.

According to one embodiment, two adjacent bars are connected to each other by one of their respective ends.

According to one embodiment, in the retracted position, two adjacent bars are inclined relative to each other by an angle between 0 and 45°, and in the extended position, two adjacent bars are inclined relative to the other at an angle between 135° and 175°.

Thus, in the folded position of the tray, the extendable support element has a minimum bulk, while in the unfolded position, the extendable support element has a zigzag support surface so as to increase the transverse dimension of the surface. support surface compared to a straight support surface and thus improve the support capacity and stability of the structure.

According to one embodiment, the extendable support element comprises one or more telescopic rails, for example two telescopic rails distributed regularly in the transverse direction under the table top.

According to one embodiment, the ratio of one dimension of the freestanding desk in the folding/unfolding direction when the support leg is in the rear position and the second planar portion and the third planar portion are in the folded position, on a dimension of the freestanding desk in the folding/unfolding direction when the support leg is in the forward position and the second flat portion and the third flat portion are in the unfolded position is greater than or equal to 3, preferably between 3 and 6 .

Thus, the freestanding desk can assume an unfolded position of the tabletop in which the dimension of the work surface is three to six times larger than the dimension of the desk when the tabletop is folded in the folding/unfolding direction, which makes it possible to have a very compact piece of furniture when storing and a spacious desk when using it.

According to one embodiment, the lower end of the support foot is equipped with at least one spring-loaded roller intended to be in contact with the ground.

Thus, the spring-loaded roller makes it easier to move the support foot between the rear and front positions while compensating for any unevenness in the floor.

According to one embodiment, the lower end of the support foot is equipped with two spring-loaded rollers distributed in the transverse direction.

According to one embodiment, the main structure comprises height-adjustable feet.

According to one embodiment, the upper end of the support foot is equipped with a recess forming a gripping handle.

According to one embodiment, the recess extends in the transverse direction of the support leg and forms both a grip handle and a storage space.

According to one embodiment, the first planar portion comprises at least one cable passage orifice, preferably two cable passage orifices located on either side of the extendable support element in the transverse direction.

According to one embodiment, the tray comprises at least one locking system, the locking system being configured to lock the second flat portion in the unfolded position relative to the third flat portion.

Thus, the locking system prevents any accidental folding of the desk and thus ensures an unfolded desk locked in position.

According to one embodiment, the top is made of melamine, solid wood, plywood or composite material, preferably melamine.

According to one embodiment, the invention also provides a workstation comprising a aforementioned self-supporting desk and one or more computer equipment located in a zone of the internal space left free by the support leg in the rear position and the tray in the folded position.

The computer equipment can be for example a keyboard, a screen or a central unit.

According to one embodiment, the main structure comprises a support plate fixed to the rear wall and/or to the side walls and located under the extendable support element, the or at least one of the computer equipment being located on the plate support.

Brief description of figures

The invention will be better understood, and other aims, details, characteristics and advantages thereof will appear more clearly during the following description of several particular embodiments of the invention, given solely by way of illustration and not limitation. , with reference to the accompanying drawings.

Figure 1 is a perspective view of a workstation in the folded position according to one embodiment.

Figure 2 is a perspective view of a workstation in an intermediate position between the folded position and the unfolded position according to one embodiment.

Figure 3 is a perspective view of a workstation in the unfolded position according to one embodiment.

Figure 4 is a bottom view of a workstation in the folded position in which the lower part of the main structure has been omitted.

Figure 5 is a side view of a workstation in the intermediate position in which one of the side walls has been omitted.

Figure 6 is a bottom view of a workstation in the unfolded position in which the lower part of the main structure has been omitted

There will be described below a workstation 1 according to one embodiment comprising a self-supporting desk 2 with a folding top and equipment such as, for example, computer equipment 23.

Figures 1 to 6 illustrate the workstation 1 in different positions. Indeed, the freestanding desk 2 can be arranged in a folded position, illustrated in FIGS. 1 and 4, and in an unfolded position, illustrated in FIGS. 3 and 6, the freestanding desk 2 being able to pass from one to the other to using a simple and easily achievable kinematics by a user. An intermediate position between the folded position and the unfolded position has also been illustrated in Figures 2 and 5 so as to more easily visualize this movement kinematics from one position to another.

The freestanding desk 2 thus has a folded or storage position for storage in which the latter has a minimum bulk and has the overall shape of a cupboard. The freestanding desk 2 also has an unfolded or use position to be used as a workstation in which a spacious work surface is formed.

The freestanding desk 2 comprises a main structure 3 comprising a rear wall 4, two side walls 5 fixed in parallel on either side of the rear wall 4, a ceiling wall 25 fixed above the rear wall 4 and a plate support 24 forming the bottom wall. The rear wall 4, the two side walls 5, the ceiling wall 25 and the support plate 24 thus form a main parallelepipedal structure 3 defining an internal space 6. The freestanding desk 2 passes from the folded position to the unfolded position and vice versa in a folding/unfolding direction 18 which is perpendicular to the rear wall 4. The side walls 5 are thus spaced apart from each other in a transverse direction which is perpendicular to the folding/unfolding direction 18. The main structure 3 also includes feet 26 located under the side walls 5 and which can be height-adjustable so as to take up any unevenness in the flatness of the floor.

The self-supporting desk 2 also includes a folding top 7 formed of several movable parts with respect to each other. The plate 7 thus comprises a first fixed planar portion 8 having one end fixed to the rear wall 4 and located in a horizontal plane, a second movable planar portion 9 and a third movable planar portion 10 . In an embodiment not shown, the self-supporting desk 2 could comprise more than two mobile planar portions, for example a fourth mobile planar portion.

The plate 7 also comprises two first pivot connections 11, with an axis parallel to the transverse direction, made at the interface between the first flat portion 8 and the second flat portion 9 and making it possible to link the first flat portion 8 and the second flat portion flat 9. The first pivot connections 11 are each formed by a hinge which is fixed on one side to the first flat portion 8 and on the other side to the second flat portion 9. As can be seen in FIG. 5, the hinge is fixed on an upper face of the first flat portion 8 and of the second flat portion 9, and has an angular displacement limited to 90°. The first pivot links 11 are distributed symmetrically in the transverse direction at the interface between the first flat portion 8 and the second flat portion 9.

The plate 7 also comprises two second pivot links 12 with an axis parallel to the transverse direction, made at the interface between the second flat portion 9 and the third flat portion 10 and making it possible to link the second flat portion 9 and the third flat portion plane 10. The second pivot links 12 are each formed by a hinge which is fixed on one side to the second flat portion 9 and on the other side to the third flat portion 10. As can be seen in FIG. 5, the hinge is fixed on an underside of the second flat portion 9 and of the third flat portion 10, and has an angular movement limited to 180°. The second pivot links 12 are distributed symmetrically in the transverse direction at the interface between the second flat portion 9 and the third flat portion 10.

The freestanding desk 2 also comprises a movable support leg 13 comprising a lower end 14 intended to be in contact with the ground and an upper end 15 connected by means of two third pivot connections 16 to the third planar portion 10. The third pivot links 16 have an axis parallel to the transverse direction and are each produced by a hinge at the interface between the third flat portion 10 and the lower end 14. As can be seen in FIG. 5, the hinge is fixed on one side upper part of the third planar portion 10 and of the lower end 14, and has an angular movement limited to 900°. In the same way as for the second pivot links 12, the third pivot links 16 are distributed symmetrically in the transverse direction.

In addition, as illustrated in Figure 5, the lower end 14 of the support leg 13 is equipped with two spring-mounted rollers 20 distributed symmetrically on the support leg 13 in the transverse direction.

The freestanding desk 2 finally comprises an extendable support element 17 which is, on the one hand, connected at one end to the rear wall 4 of the main structure and, on the other hand, at another end, connected to the support foot 13. The extendable support element 17 is located under the plate 7 substantially in the middle thereof. This extendable support element is more particularly illustrated according to an alternative embodiment in FIGS. 2, 4 and 6 in different extended positions.

In this illustrated variant, the extendable support element 17 comprises a plurality of articulated bars 19. The extensible support element is thus formed in a horizontal plane so that two adjacent bars 19 are connected to each other using a vertical axis pivot connection in order to form an accordion arm. In a variant not shown, the extendable support element may include one or more telescopic rails.

The different positions that can be taken by the freestanding desk 2 will then be described using Figures 1 to 6.

Figures 1 and 4 more particularly illustrate the folded position in which the size is limited, the freestanding desk 2 having the overall shape of a cupboard. As visible in these figures, in this position, the support leg 13 is in a rear position where it is located in the internal space 6 of the main structure 3 so as to form a lower front wall portion for the main structure 3 In addition, the second flat portion 9 and the third flat portion 10 are in a folded position where they are located in the internal space 6 of the main structure 3 so as to be placed above the first flat portion 8. Indeed, the second flat portion 9 and the third flat portion 10 are here located one against the other in vertical planes so as to take up a minimum of space in the folding/unfolding direction 18. The support element extensible 17 is itself folded into a retracted position, that is to say in a position where two adjacent bars 19 are located close to each other in their longitudinal dimension as illustrated in Figure 4. extensible support element 17 is thus located entirely in the internal space 6 and takes up a minimum of space.

Figures 3 and 6 more particularly illustrate the unfolded position in which the tray 7 is unfolded to form a flat work surface. The support foot 13 is in a forward position where it is located at a distance from the main structure. The first flat portion 8, the second flat portion 9 and the third flat portion 10 are aligned with each other so as to form the flat work surface. Indeed, the second portion 9 and the third flat portion 10 are here located in the same horizontal plane as the first flat portion 8 and directly juxtaposed to each other. The extensible support element 17 is itself extended in an extended position, that is to say a position in which two adjacent bars 19 are inclined with respect to each other by an angle greater than 130° in order to produce a sufficiently large support surface in the transverse direction for the plate 7. As can be seen in particular in FIG. 6, the extendable support element 17 has a longitudinal dimension greater than the dimension in the folding/unfolding direction of the tray 7 so that in the extended position, the extendable support element 17 has a zigzag shape allowing it to support the first flat portion 8, the second flat portion 9 and the third portion 10 over a larger dimension in the direction transverse.

A locking system 22 may be provided under the plate 7 in order to block the plate 7 in the unfolded position and the support leg 13 in the front position and thus prevent unwanted closing. For this, the locking system 22 can be located at the interface between the second flat portion 9 and the third flat portion 10, part of the locking system 22 being located on the second flat portion 9 and another part of the lock 22 being located on the third flat portion 10, so that the two parts of the locking system 22 cooperate with each other, for example of the lever/hook type. This locking system 22 can also also be provided at the interface between the first flat portion 8 and the second flat portion 9, or else at the interface between the third flat portion 10 and the support foot 13, or even at the level of an articulation of the extensible support element 17.

In addition, as visible in Figure 6, the first planar portion 8 comprises two cable passage holes 27 crossing right through the first planar portion in a direction of height perpendicular to the direction of folding / unfolding and to the transverse direction allowing cables to pass through the plate 7. In addition, it is advantageous to locate the cable passage holes 27 on either side in the transverse direction of the zone where the extendable support element 17 is fixed to the rear wall 4 so as not to interfere with the unfolding of the extendable support element 17 and to avoid weakening the structure of the freestanding desk 2 in this area. In an embodiment not illustrated, the rear wall 4 may also include a cable passage hole, for example below the first flat portion 8.

In Figures 3 and 5, it is possible to distinguish a recess 21 forming a handle and storage space which is made at the level of the upper end 15 of the support foot 13 and extends along the transverse direction.

Figures 2 and 5 illustrate an intermediate position of the freestanding desk 2 when it moves from a folded position to an unfolded position or vice versa. This position makes it possible to better illustrate the transition from one position to another and the kinematics of movement of the various components of the freestanding desk 2. Indeed, as can be seen in particular in Figure 5, the support foot 13 has been slid in the folding/unfolding direction so as to take it out of the internal space 6 in a position situated between the rear position and the front position. By moving the support foot 13, the second flat portion 9 and the third flat portion 10 have pivoted relative to each other and also relative to the first flat portion 8 so as to be located in planes inclined by relative to the vertical plane. The second flat portion 9 and the third flat portion 10 thus have a V shape in the intermediate position. Additionally, the extendable support member 17 is partially unfolded to a position between its retracted position and its extended position.

A user thus simply moves from a cabinet-like storage position to a desk-use position by gripping the support leg 13 by the recess 21 and pulling it in the folding/unfolding direction 18 so as to move away from the rear wall 4, movement being facilitated by the spring-loaded rollers 20, in order to place the support leg 13 from the rear position to the front position. This simple movement causes the pivoting of the second flat portion 9 and the third flat portion 10 from a vertical folded position to a horizontal unfolded position so as to align with the first flat portion 8 and also causes the extension of the extendable support element 17 from the retracted position, visible in Figure 4, to the extended position, visible in Figure 6.

Similarly, a user also simply moves from a desk use position to a cabinet-like storage position by gripping the support leg 13 by the recess 21 and pushing it in the direction of folding/ unfolding 18 so as to approach the rear wall 4, movement being facilitated by the spring-loaded rollers 20, in order to place the support foot 13 from the front position to the rear position. This simple movement causes the second flat portion 9 and the third flat portion 10 to pivot from a horizontal unfolded position to a vertical folded position so that the second flat portion 9 and the third portion 10 are placed one against the other in the internal space 6, and also causes the retraction of the extensible support element 17 from the extended position, visible in figure 6, towards the retracted position, visible in figure 4.

The workstation 1 formed by the freestanding desk 2 can comprise computer equipment 23 such as a screen, a keyboard, a mouse or a central unit, as illustrated for example in FIGS. 2, 3 and 5. Indeed, that whether in the storage position or the use position, the workstation 1 comprises locations allowing the storage or the use of the computer equipment 23. As can be seen more easily in FIG. 5, the computer equipment 23 can be stored on or above the support plate 24, or even on or above the first flat portion 8 of the tray 7 without the computer equipment 23 interfering with the folding or unfolding of the tray 7 of the desk self-supporting 2.

Although the invention has been described in connection with several particular embodiments, it is obvious that it is in no way limited thereto and that it includes all the technical equivalents of the means described as well as their combinations if these fall within the scope of the invention.

The use of the verb "to comprise", "to understand" or "to include" and of its conjugated forms does not exclude the presence of other elements or other steps than those set out in a claim.

In the claims, any reference sign in parentheses cannot be interpreted as a limitation of the claim.

Examples

An example of the sizing of a freestanding desk 2 according to the invention which also complies with the ergonomics standard for the layout of an office NF X 35-102 will be described below:

Dimension of the freestanding desk 2 in the folding/unfolding direction 18 and in a folded position: 35 cm.

Dimension of the freestanding desk 2 in the folding/unfolding direction 18 and in an unfolded position: 145 cm.

Dimension of the tray 7 outside the internal space 6 in the folding/unfolding direction 18 and in an unfolded position: 100 cm.

Dimension between floor and extendable support element 17 in height direction: 63 cm.

Dimension between the floor and the flat work surface in the height direction: 73 cm.

Dimension of the freestanding desk 2 in the transverse direction: 80 cm.

Dimension of the plate 7 in the transverse direction: 75 cm.

Dimension of freestanding desk 2 in height direction: 133 cm.

Claims (11)

Freestanding desk (2) comprising:
- a main structure (3) comprising a vertical rear wall (4) and two vertical side walls (5), the two side walls (5) being fixed on either side of the rear wall (4) so as to define an internal space (6),
- a plate (7) comprising a first flat portion (8), fixed and horizontal, having one end fixed to the rear wall (4), a second flat portion (9) movable and a third flat portion (10) movable, the plate (7) also comprising at least one first pivot link (11) linking the first flat portion (8) and the second flat portion (9) and at least one second pivot link (12) linking the second flat portion (9) and the third planar portion (10), the second planar portion (9) and the third planar portion (10) being movable between a folded position in which the second planar portion (9) and the third planar portion (10) are located in the internal space (6) of the main structure (3) above the first planar portion (8) and an unfolded position in which the second planar portion (9) and the third planar portion (10) are aligned with the first flat portion (8) so as to form a flat work surface;
- a mobile support foot (13) comprising a lower end (14) intended to be in contact with the ground and an upper end (15) connected by means of at least one third pivot connection (16) to the third flat portion (10), the support foot (13) being movable, in a folding/unfolding direction (18) normal to the rear wall (4), between a rear position in which the support foot (13) is located in the internal space (6) of the main structure (3) so as to form a lower front wall portion for the main structure (3) and a front position in which the support foot (13) is located at a distance from the main structure (3), the movement of the support leg (13) from the rear position to the front position causing the movement of the second and third flat portions from the folded position to the unfolded position and vice versa,
- an extendable support element (17) having a first end linked to the main structure (3) and a second end linked to the support leg (13), the extendable support element (17) being located under the top ( 7) and being movable, during movement of the support foot (13) from its rear position to its front position, from a retracted position to an extended position, in which the second planar portion (9) and the third planar portion ( 10) rests against the extendable support element (17), and vice versa. Freestanding desk (2) according to claim 1, wherein in the folded position the second planar portion (9) and the third portion lie against each other in vertical planes. A freestanding desk (2) as claimed in claim 1 or claim 2, wherein the side walls (5) of the main structure (3) are spaced apart in a transverse direction, the extendable support member ( 17) being fixed in the middle of the rear panel and in the middle of the support leg (13) in the transverse direction so as to be substantially in the middle of the tray (7) in the unfolded position. Freestanding desk (2) according to one of Claims 1 to 3, in which the extendable support element (17) comprises a plurality of hinged bars (19) in a horizontal plane, two adjacent bars being connected to each other. the other using a pivot connection with a vertical axis. Freestanding desk (2) according to claim 4, wherein in the retracted position, two adjacent bars are inclined with respect to each other by an angle comprised between 0 and 45°, and in the extended position, two bars adjacent are inclined relative to each other by an angle between 135° and 175°. Freestanding desk (2) according to one of claims 1 to 5, wherein the ratio of a dimension of the freestanding desk (2) in the folding/unfolding direction (18) when the supporting leg (13) is in the rear position and the second planar portion (9) and the third planar portion (10) are in the folded position, over one dimension of the freestanding desk (2) in the folding/unfolding direction (18) when the support leg (13 ) is in the forward position and the second flat portion (9) and the third flat portion (10) are in the unfolded position is greater than or equal to 3, preferably between 3 and 6. Freestanding desk (2) according to one of Claims 1 to 6, in which the lower end (14) of the support leg (13) is equipped with at least one roller (20) on a spring intended to be in contact with floor. Freestanding desk (2) according to one of Claims 1 to 7, in which the upper end (15) of the support foot (13) is equipped with a recess (21) forming a grip handle. Freestanding desk (2) according to one of Claims 1 to 8, in which the at least one first pivot connection (11), the at least one second pivot connection (12) and/or the at least one third connection pivot (16) are made using a hinge. Freestanding desk (2) according to one of Claims 1 to 9, in which the top (7) comprises at least one locking system (22), the locking system (22) being configured to lock in the unfolded position the second flat portion (9) with respect to the third flat portion (10). Workstation comprising a freestanding desk (2) according to one of Claims 1 to 10 and one or more computer equipment items (23) located in an area of the internal space (6) left free by the support leg (13) in the rear position and the tray (7) in the folded position.