Workstation comprising at least one table structure having a work surface adjustable in height

Abstract

A workstation (1), comprising a base structure (2) to place said workstation (1) on a floor (3), at least one table structure (10, 10') supported by said base structure (2); wherein said at least one table structure (10, 10') comprises: an upright structure (30) having a lower end (31) secured to said base structure (2) and an opposite free upper end (32); a horizontal work surface (50) supported by said upright structure (30) completely cantilevered with respect to said upright structure (30) from a front side (35) of said upright structure (30), said work surface (50) being adjustable in height, wherein said upright structure (30) comprises a first vertical sliding column (61) and a second vertical sliding column (62), a first slider (63) sliding along said first vertical sliding column (61) and a second slider (64) sliding along said second vertical sliding column (62), each of said first slider (63) and said second slider (64) comprising a respective connection bracket (65, 66) configured to connect to and support said work surface (50); an adjustment mechanism (60) for adjusting the height (H) of said work surface (50) with respect to said floor (3) between a minimum height and a maximum height; wherein said adjustment mechanism (60) comprises: a rotating element (70) constrained to said upright structure (30) so as to freely rotate about a rotation axis (R-R), said rotating element (70) comprising a first pulley (71) having a varying radius according to a first spiral profile according to a first angular direction, a second pulley (72) having a varying radius according to a second spiral profile equal to the first spiral profile according to a second angular direction opposite to the first angular direction, a third pulley (73) having a constant diameter, said first pulley (71), said second pulley (72) and said third pulley (73) being coaxial with said rotation axis and integral with one another; a first pull cable (81) having a first end wound about said first pulley (71) and an opposite second end connected to said first slider (63), and a second pull cable (82) having a first end wound about said second pulley (72) and an opposite second end connected to said second slider (64); a third pull cable (83) having a first end wound on said third pulley (73) and an opposite second end secured to a balancing spring (93) connected to said upright structure (30) and configured to apply to said third pull cable (83) a balancing tension such as to apply to said rotating element (70) a torque balanced with an opposite torque resulting from the tensions applied by the first pull cable (81) and the second pull cable (82) to the rotating element (70).

Description

"Workstation comprising at least one table structure having a work surface adjustable in height"DESCRIPTIONField of the invention

[0001] The present invention relates to a workstation comprising at least one table structure having a work surface adj ustable in height .Prior art

[0002] In the field of of fice furniture , workstations are well known which comprise one or more tables whose work surface is adj ustable in height .

[0003] Such tables provide a work surface in front of which the operator works for long hours , and on which a keyboard and a monitor of a computer are generally placed .

[0004] In order to ensure a correct posture of the operator during working hours , it is necessary to adj ust the height of the work surface with respect to the floor, in accordance with the dimensions of the operator himsel f .

[0005] In other words , each operator using that speci fic table needs to adj ust its height based on his height .

[0006] This adj ustment operation must be comfortable , intuitive , and must not require a high mechanical ef fort by the operator .

[0007] At the same time , the workstation must have a linear and simple appearance in order to make its use pleasantand comfortable , leaving completely free the space underneath the work surface to allow the operator to place the legs without risk of collision with support structures of the work surface .

[0008] Workstations are known which allow to adj ust the height of the work surface by means of complex electromechanical mechanisms comprising one or more electric motors , rack and pinion transmissions , or by means of electric-driven hydraulic actuators .

[0009] The use of the aforesaid electromechanical components requires the availability of a power source near the workstation itsel f or the presence of an electric battery within the structure of the workstation .

[0010] Therefore , a need is felt to provide a workstation comprising at least one table structure with a work surface adj ustable in height , which allows the adj ustment of the height of the work surface by means of a manual handling of the work surface opposing minimum resistance to the handling itsel f , and which is devoid of electromechanical or hydraulic adj ustment mechanisms or actuators .

[0011] At the same time , there is also a felt need that such workstation has a linear and minimalist aesthetic appearance and is comfortable in use for long working hours .Summary of the invention

[0012] An obj ect of the present invention is to devise and provide a workstation which allows to satis fy the above- mentioned needs and to overcome at least partially the drawbacks complained of above with reference to the known art .

[0013] In particular, an obj ect of the present invention is to provide a workstation comprising at least one table structure with a work surface adj ustable in height , which allows the adj ustment of the height of the work surface by means of a manual handling of the work surface opposing minimum resistance to the handling itsel f .

[0014] Furthermore , an obj ect of the present invention is to provide a workstation having at least one work surface easily adj ustable in height manually with minimum ef fort and which is devoid of electromechanical or hydraulic actuators or adj ustment mechanisms .

[0015] Another obj ect of the present invention is also to provide a workstation having at least one work surface easily adj ustable in height manual ly, which also presents a linear and minimalist aesthetic appearance and is comfortable in use for long working hours .

[0016] These and further obj ects and advantages are achieved by means of a workstation in accordance with independent claim 1 .

[0017] Further obj ects , solutions and advantages are presentin the embodiments described below and claimed in the dependent claims .

[0018] According to a general embodiment of the invention, the workstation comprises a base structure , at least one table structure supported by said base structure , wherein said at least one table structure comprises an upright structure , a hori zontal work surface supported by said upright structure completely canti levered with respect to said upright structure from a front side of said upright structure , said work surface being adj ustable in height , by means of an adj ustment mechanism comprising a rotating element constrained to said upright structure and comprising a first pulley having a varying radius according to a first spiral profile according to a first angular direction, a second pulley having a varying radius according to a second spiral profile equal to the first spiral profile according to a second angular direction opposite to the first angular direction, a third pulley having a constant diameter, said first pulley, said second pulley and said third pulley being coaxial with said rotation axis and integral with one another, a first pull cable having a first end wound about said first pulley and an opposite second end connected to a first sliding slider supporting the work surface , a second pull cable having a first end wound about said second pulley and an oppositesecond end connected to a second sliding slider supporting the work surface , a third pull cable having a first end wound on said third pulley and an opposite second end secured to a balancing spring connected to said upright structure and configured to apply to said third pull cable a balancing tension such as to apply to said rotating element a torque balanced with an opposite torque resulting from the tensions applied by the f irst pull cable and the second pull cable to the rotating element .

[0019] Advantageously, such adj ustment mechanism is purely mechanical , devoid of any electric or hydraulic actuator, and allows to balance the weight applied by the work surface by means of the elastic action applied by the spring .

[0020] The variation of the elastic force applied by the spring as a function of its elongation is balanced by the variation of the radius of the spiral pulleys .

[0021] Such balancing of forces , in particular of torques , allows the height of the work surface to be adj usted by means of a very light manual action by the operator .

[0022] The features of such adj ustment mechanism allow it to be integrated into a parallelepiped compartment formed by the upright structure , having a reduced transverse thickness .

[0023] In other words , the aforesaid adj ustment mechani smallows the upright structure to be implemented as a parallelepiped having a reduced thickness , like a panel , and to completely integrate the adj ustment mechanism inside the panel-type upright .

[0024] This allows the workstation to have an aesthetic appearance of high quality and refinement , with a minimalist and simple aesthetic line , and at the same time , to make such workstation comfortable for long working hours .Brief description of the Figures

[0025] The invention will now be illustrated with the description of some embodiments thereof , given by way of non-limiting examples , with reference to the accompanying drawings in which :

[0026] - figure 1 shows an isometric top view of a workstation according to the invention, having a single table structure ;

[0027] - figure 2 shows an isometric bottom view of the workstation of figure 1 ;

[0028] - figure 3 shows a front orthogonal view of the workstation of figure 1 , wherein a front closing panel has been removed to allow observation of the components inside the upright structure , and wherein the work surface is shown in dashed line ;

[0029] - figure 4 shows a rotating element belonging toa height adj ustment mechanism of the work surface of a workstation according to the invention, comprising two spiral pulleys mirrored to each other and a constant radius pulley, coaxial and integral with each other ;

[0030] - figure 5 shows a side view of the rotating element of figure 4 , according to the direction V;

[0031] - figure 6 shows the rotating element of figure 4 , wherein the passage of the first , second, and third pull cables is shown;

[0032] - figure 7 shows an isometric top view of a workstation according to the invention, compris ing two opposite table structures , wherein the respective upright structures are integrated with each other side by side ;

[0033] - figure 8 shows an isometric bottom view of the workstation of figure 7 ;

[0034] - figure 9 shows the workstation of figure 8 , wherein the front closing panels have been removed to allow observation of the components inside the upright structure , and wherein the two work surfaces are shown in dashed line ;

[0035] - figure 10 shows a front orthogonal view of the workstation of figure 7 , wherein the front closing panel has been removed to allow observation of the components inside the upright structure ;

[0036] - figure 11 shows the rotating elements andrespective cable paths of two adj ustment mechanisms of two table structures integrated with each other side by side in the workstation of figure 8 ;

[0037] - figure 12 shows the positioning of the rotating elements of the adj ustment mechanisms of the two table structures associated with each other side by side , wherein both adj ustment mechanisms are placed inside the same upright structure .Description of the preferred embodiments

[0038] With reference to the figures , a workstation according to the invention is overall denoted by the reference 1 .

[0039] The workstation 1 comprises a base structure 2 to place said workstation 1 on a floor 3 , at least one table structure 10 , 10 ' supported by said base structure 2 , wherein said at least one table structure 10 , 10 ' comprises an upright structure 30 having a lower end 31 secured to said base structure 2 and an opposite free upper end 32 , a hori zontal work surface 50 supported by said upright structure 30 completely cantilevered with respect to said upright structure 30 from a front side 35 of said upright structure 30 , wherein said work surface 50 is adj ustable in height .

[0040] According to an embodiment , the base structure 2 may comprise support wheels to allow a movement of theworkstation 1 along said floor 3 .

[0041] The upright structure 30 comprises a first vertical sliding column 61 and a second vertical sliding column 62 , a first slider 63 sliding along said first vertical sliding column 61 and a second slider 64 s liding along said second vertical sliding column 62 , each of said first slider 63 and said second slider 64 comprising a respective connection bracket 65 , 66 configured to connect to and support said work surface 50 .

[0042] The at least one table structure 10 , 10 ' comprises an adj ustment mechanism 60 to adj ust the height H of said work surface 50 with respect to said floor 3 between a minimum height and a maximum height .

[0043] The adj ustment mechanism 60 comprises a rotating element 70 constrained to said upright structure 30 so as to freely rotate about a rotation axis R-R, said rotating element 70 comprising a first pulley 71 having a varying radius according to a first spiral profile according to a first angular direction, a second pulley 72 having a varying radius according to a second spiral profile equal to the first spiral profile according to a second angular direction opposite to the first angular direction, a third pulley 73 having a constant diameter, said first pulley 71 , said second pulley 72 and said third pulley 73 being coaxial with said rotation axis and integral with oneanother .

[0044] In other words , the second spiral profile is identical and mirrored with respect to the first spiral profile .

[0045] In yet other words , the first spiral profile and the second spiral profile are equal and reversed with respect to each other .

[0046] According to an embodiment , the first spiral profile of the first pulley 71 has a peripheral cable housing channel which develops along a hel ical path so as to extend for a circumferential length greater than one turn .

[0047] According to an embodiment , the second spiral profile of the second pulley 72 has a peripheral cable housing channel which develops along a hel ical path so as to extend for a circumferential length greater than one turn .

[0048] According to an embodiment , the third pulley has a peripheral cable housing channel which develops along a helical path so as to extend for a circumferential length greater than one turn .

[0049] In this way, it is possible to wind a cable portion having a length greater than the circumference of the respective pulley .

[0050] According to an embodiment , the first pulley 71 is axially interposed between the second pulley 72 and the third pulley 73 .

[0051] According to an embodiment , the first pulley 71 , thesecond pulley 72 and the third pulley 73 are made altogether as a single piece .

[0052] The rotation axis R-R is preferably orthogonal to the front side 35 o f the upright structure 30 , pre ferably hori zontal .

[0053] The adj ustment mechanism 60 further comprises a first pull cable 81 having a first end wound about said first pulley 71 and an opposite second end connected to said first slider 63 , and a second pull cable 82 having a first end wound about said second pulley 72 and an opposite second end connected to said second slider 64 , a third pull cable 83 having a first end wound on said third pulley 73 and an opposite second end secured to a balancing spring 93 connected to said upright structure 30 and configured to apply to said third pull cable 83 a balancing tension such as to apply to said rotating element 70 a torque balanced with an opposite torque resulting from the tensions applied by the first pull cable 81 and the second pull cable 82 to the rotating element 70 .

[0054] According to an embodiment , the second end of said first pull cable 81 is connected to said first slider 63 by means of a first tensioning assembly 91 comprising a first idle pulley 84 and a first return cable 85 , wherein said first idle pulley 84 is rotatably connected to the second end of said first pull cable 81 and said firstreturn cable 85 has a first end secured to said first slider 63 and a second end secured at a first securing point 86 to said upright structure 30 .

[0055] According to an embodiment , a first screw tensioner101 is interposed between said second end of said first return cable 85 and said first securing point 86 to said upright structure 30 .

[0056] According to an embodiment , the second end of said second pull cable 82 is connected to said second slider 64 by means of a second tensioning assembly 92 comprising a second idle pulley 87 and a second return cable 88 , wherein said second idle pulley 87 is rotatably connected to the second end of said second pull cable 82 and said second return cable 88 has a first end secured to said second slider 64 and a second end secured at a second securing point 89 to said upright structure 30 .

[0057] According to an embodiment , a second screw tensioner102 is interposed between said second end of said second return cable 88 and said second securing point 89 to said upright structure 30 .

[0058] According to an embodiment , said balancing spring 93 comprises a traction spring having a first spring end 94 secured to said second end of said third pull cable 83 and an opposite second spring end 95 connected to said upright structure 30 .

[0059] According to an embodiment , the adj ustment mechanism 60 comprises a third tensioning assembly 97 interposed between said second spring end and said upright structure , wherein said third tensioning assembly 97 comprises a third screw tensioner 103 secured at a third securing point 104 to said upright structure 30 , said third screw tensioner 103 being arranged so as to be operable from the outside of said upright structure 30 .

[0060] According to an embodiment , the third tensioning assembly 97 comprises a third pulley 99 rotatably engaged with a fourth securing point 96 to said upright structure 30 and a third return cable 98 engaged with said third pulley 99 and having a first end secured to said second spring end 95 and an opposite second end secured to said third screw tensioner 103 .

[0061] According to an embodiment , said upright structure 30 comprises a lower connection crosspiece 33 and an opposite upper connection crosspiece 34 , said lower connection crosspiece 33 connecting the lower ends of said first vertical sliding column 61 and said second vertical sliding column 62 to each other, and said upper connection crosspiece connecting the upper ends of said first vertical sliding column 61 and said second vertical sliding column 62 to each other .

[0062] According to an embodiment , said rotating element 70is connected to said upper connection crosspiece 34 , and said balancing spring 93 is connected to said lower connection crosspiece 33 .

[0063] According to an embodiment , said first securing point 86 belongs to said lower connection crosspiece 33 .

[0064] According to an embodiment , said second securing point 89 belongs to said lower connection crosspiece 33 .

[0065] According to an embodiment , said third securing point 104 belongs to said upper connection crosspiece 34 .

[0066] According to an embodiment , said third screw tensioner 103 is operable from an upper surface of said upper connection crosspiece 34 .

[0067] According to an embodiment , said fourth securing point 96 belongs to said lower connection crosspiece 33 .

[0068] According to an embodiment , said adj ustment mechanism 60 comprises a brake mechanism 40 conf igured to lock the work surface 50 at a desired height H, operable between a locked position and a free position by means of an operating handle 45 .

[0069] According to an embodiment , said brake mechanism 40 comprises a first bar 41 parallel and close to said first vertical sliding column 61 preferably secured to said upright structure 30 , a second bar 42 parallel and close to said second vertical sliding column 62 preferably secured to said upright structure , a first stick-slip slide43 sliding along said first bar 42 and integral with said first slider 63 , a second stick-slip slide 44 sliding along said second bar 42 and integral with said second slider 64 , wherein said first stick-slip slide 43 and said second stick-slip slide 44 are connected to said operating handle 45 .

[0070] According to an embodiment , the first bar 41 and / or the second bar 42 has its opposite ends secured to said upper connection crosspiece 32 and to said lower connection crosspiece 33 respectively .

[0071] According to an embodiment , said first stick-sl ip slide 43 and said second stick-slip slide 44 comprise a plurality of foils having a central slot in which the respective bar 41 , 42 passes and a contrast spring which biases the foils to tilt against the bar 41 , 42 to stick along the bar in the desired position, and wherein said foils are connected to said operating handle by means of a cable pulling in opposition to said spring .

[0072] According to an embodiment , said first vertical sliding column 61 , said second vertical sliding column 62 , said upper connection crosspiece 32 and said lower connection crosspiece 33 together form the four sides of a rectangular frame .

[0073] According to an embodiment , said upright structure 30 comprises a front closing panel 36 defining said frontside 35 , said front closing panel being shaped along a peripheral edge of said rectangular frame so as to cover and completely hide behind it said rectangular frame and said adj ustment mechanism 60 .

[0074] According to an embodiment , said work surface 50 has a proximal edge 51 facing said upright structure 30 and an opposite distal edge 52 .

[0075] According to an embodiment , the proximal edge 51 is arranged at a minimum distance from said front closing panel 36 .

[0076] According to an embodiment , the upright structure 30 has a box-shaped form, housing inside it said adj ustment mechanism 60 .

[0077] According to an embodiment , the work surface 50 has a width, measured orthogonally to the proximal edge 51 , equal to the width of the upright structure 30 measured in the same direction .

[0078] According to an embodiment , said at least one table structure 10 , 10 ' is formed by two table structures 10 , 10 ' equal to each other and j oined together along a rear side of said upright structure 30 , opposite to said front side 35 of said upright structure 30 , wherein said upright structure 30 of each of said two table structures 10 , 10 ' are integrated with each other, preferably forming a single box-shaped structure housing inside it both adj ustmentmechanisms 60 of both table structures 10 and 10' .

[0079] In other words, the two table structures 10, 10' are joined side by side.

[0080] According to an embodiment, the rotating elements 70 of the adjustment mechanisms 60 of both table structures 10 and 10' are equal to each other, preferably have the rotation axes R-R parallel to each other, and are arranged in axially reversed position with respect to each other.

[0081] According to another embodiment, the workstation 1 comprises a number of table structures 10 greater than two, for example arranged around a central space.

[0082] To the embodiments of the device described above, a person skilled in the art, in order to meet contingent needs, may make modifications, adaptations, and replacements of elements with other functionally equivalent ones, without thereby departing from the scope of the following claims. Each of the features described as pertaining to a possible embodiment may be implemented independently of the other embodiments described.

Claims

CLAIMS1. A workstation (1) , comprising:- a base structure (2) to place said workstation (1) on a floor ( 3 ) ;- at least one table structure (10, 10' ) supported by said base structure (2) ; wherein said at least one table structure (10, 10' ) comprises :- an upright structure (30) having a lower end (31) secured to said base structure (2) and a free opposite upper end (32) ;- a horizontal work surface (50) supported by said upright structure (30) completely cantilevered with respect to said upright structure (30) from a front side (35) of said upright structure (30) , said work surface (50) being adjustable in height,- wherein said upright structure (30) comprises a first vertical sliding column (61) and a second vertical sliding column (62) , a first slider (63) sliding along said first vertical sliding column (61) and a second slider (64) sliding along said second vertical sliding column (62) , each of said first slider (63) and said second slider (64) comprising a respective connection bracket (65, 66) configured to connect to and support said work surfacean adjustment mechanism (60) for adjusting the height(H) of said work surface (50) with respect to said floor (3) between a minimum height and a maximum height;- wherein said adjustment mechanism (60) comprises:- a rotating element (70) constrained to said upright structure (30) so as to freely rotate about a rotation axis (R-R) , said rotating element (70) comprising a first pulley (71) having a varying radius according to a first spiral profile according to a first angular direction, a second pulley (72) having a varying radius according to a second spiral profile equal to the first spiral profile according to a second angular direction opposite to the first angular direction, a third pulley (73) having a constant diameter, said first pulley (71) , said second pulley (72) , and said third pulley (73) being coaxial to said rotation axis and integral with one another;- a first pull cable (81) having a first end wound about said first pulley (71) and an opposite second end connected to said first slider (63) , and a second pull cable (82) having a first end wound about said second pulley (72) and an opposite second end connected to said second slider (64) ;- a third pull cable (83) having a first end wound on said third pulley (73) and an opposite second end secured to a balancing spring (93) connected to said upright structure(30) and configured to apply, to said third pull cable(83) , a balancing tension such as to apply to said rotating element (70) a torque balanced with an opposite torque resulting from the tensions applied by the first pull cable (81) and the second pull cable (82) to the rotating element (70) .

2. A workstation (1) according to claim 1, wherein the second end of said first pull cable (81) is connected to said first slider (63) by means of a first tensioning assembly (91) comprising a first idle pulley (84) and a first return cable (85) , wherein said first idle pulley(84) is rotatably connected to the second end of said first pull cable (81) and said first return cable (85) has a first end secured to said first slider (63) and a second end secured at a first securing point (86) to said upright structure (30) .

3. A workstation (1) according to claim 2, wherein a first screw tensioner (101) is interposed between said second end of said first return cable (85) and said first securing point (86) to said upright structure (30) .

4. A workstation (1) according to claim 1, wherein the second end of said second pull cable (82) is connected to said second slider (64) by means of a second tensioning assembly (92) comprising a second idle pulley (87) and a second return cable (88) , wherein said second idle pulley(87) is rotatably connected to the second end of said second pull cable (82) and said second return cable (88) has a first end secured to said second slider (64) and a second end secured at a second securing point (89) to said upright structure (30) .

5. A workstation (1) according to claim 4, wherein a second screw tensioner (102) is interposed between said second end of said second return cable (88) and said second securing point (89) to said upright structure (30) .

6. A workstation (1) according to claim 1, wherein said balancing spring (93) comprises a traction spring having a first spring end (94) secured to said second end of said third pull cable (83) and an opposite second spring end (95) connected to said upright structure (30) .

7. A workstation (1) according to claim 6, wherein the adjustment mechanism (60) comprises a third tensioning assembly (97) interposed between said second spring end and said upright structure, wherein said third tensioning assembly (97) comprises a third screw tensioner (103) secured at a third securing point (104) to said upright structure (30) , said third screw tensioner (103) being arranged so as to be operable from the outside of said upright structure (30) .

8. A workstation (1) according to claim 7, wherein said third tensioning assembly (97) comprises a third pulley(99) rotatably engaged with a fourth securing point (96) to said upright structure (30) and a third return cable (98) engaged with said third pulley (99) and having a first end secured to said second spring end (95) and an opposite second end secured to said third screw tensioner (103) .

9. A workstation (1) according to claim 1, wherein said upright structure (30) comprises a lower connection crosspiece (33) and an opposite upper connection crosspiece (34) , said lower connection crosspiece (33) connecting the lower ends of said first vertical sliding column (61) and said second vertical sliding column (62) to each other, and said upper connection crosspiece connecting the upper ends of said first vertical sliding column (61) and said second vertical sliding column (62) to each other.

10. A workstation (1) according to claim 9, wherein said rotating element (70) is connected to said upper connection crosspiece (34) , and wherein said balancing spring (93) is connected to said lower connection crosspiece (33) .

11. A workstation (1) according to claims 2 and 10, wherein said first securing point (86) belongs to said lower connection crosspiece (33) .

12. A workstation (1) according to claims 4 and 10, wherein said second securing point (89) belongs to said lower connection crosspiece (33) .

13. A workstation (1) according to claims 7 and 10, wherein said third securing point (104) belongs to said upper connection crosspiece (34) .

14. A workstation (1) according to claim 13, wherein said third screw tensioner (103) is operable from an upper surface of said upper connection crosspiece (34) .

15. A workstation (1) according to claim 13, wherein said fourth securing point (96) belongs to said lower connection crosspiece ( 33 ) .

16. A workstation (1) according to at least one preceding claim, wherein said adjustment mechanism (60) comprises a brake mechanism (40) configured to lock the work surface (50) at a desired height (H) , operable between a locked position and a free position by means of an operating handle (45) .

17. A workstation (1) according to claim 16, wherein said brake mechanism (40) comprises a first bar (41) parallel and close to said first vertical sliding column (61) , a second bar (42) parallel and close to said second vertical sliding column (62) , a first stick-slip slide (43) sliding along said first bar (42) and integral with said first slider (63) , a second stick-slip slide (44) sliding along said second bar (42) and integral with said second slider (64) , wherein said first stick-slip slide (43) and said second stick-slip slide (44) are connected to saidoperating handle (45) .

18. A workstation (1) according to claim 17, wherein said first stick-slip slide (43) and said second stick-slip slide (44) comprise a plurality of foils having a central slot in which the respective bar (41, 42) passes and a contrast spring which biases the foils to tilt against the bar (41, 42) to stick along the bar in the desired position, and wherein said foils are connected to said operating handle by means of a cable pulling in opposition to said spring.

19. A workstation (1) according to claim 9, wherein said first vertical sliding column (61) , said second vertical sliding column (62) , said upper connection crosspiece (32) , and said lower connection crosspiece (33) together form the four sides of a rectangular frame.

20. A workstation (1) according to claim 16, wherein said upright structure (30) comprises a front closing panel (36) defining said front side (35) , said front closing panel being shaped along a peripheral edge of said rectangular frame so as to cover said rectangular frame and said adjustment mechanism (60) and completely hide them therebehind.

21. A workstation (1) according to claim 20, wherein said work surface (50) has a proximal edge (51) facing said upright structure (30) and an opposite distal edge (52) ,wherein said proximal edge (51) is arranged at a minimum distance from said front closing panel (36) .

22. A workstation (1) according to at least one preceding claim, wherein said at least one table structure (10, 10' ) is formed by two table structures (10, 10' ) equal to each other and joined together along a rear side of said upright structure (30) , opposite to said front side (35) of said upright structure (30) , wherein the upright structures (30) of each of said two table structures (10, 10' ) are integrated with each other in a single common upright structure .

Images