WO2018046645A1 - Portable building-site workbench - Google Patents

Portable building-site workbench Download PDF

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Publication number
WO2018046645A1
WO2018046645A1 PCT/EP2017/072555 EP2017072555W WO2018046645A1 WO 2018046645 A1 WO2018046645 A1 WO 2018046645A1 EP 2017072555 W EP2017072555 W EP 2017072555W WO 2018046645 A1 WO2018046645 A1 WO 2018046645A1
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WO
WIPO (PCT)
Prior art keywords
workbench
frame
elements
panel
frames
Prior art date
Application number
PCT/EP2017/072555
Other languages
French (fr)
Inventor
Jean-Yves Marie BOURGUIGNON
Original Assignee
Bourguignon Jean Yves Marie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bourguignon Jean Yves Marie filed Critical Bourguignon Jean Yves Marie
Priority to EP17762141.4A priority Critical patent/EP3509798B1/en
Publication of WO2018046645A1 publication Critical patent/WO2018046645A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/02—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of table type
    • B25H1/04—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of table type portable

Definitions

  • the invention relates to the field of workshop or site equipment. More particularly, the invention relates to a portable workbench.
  • An electrical technician (or other), as part of a maintenance or repair work on site, needs to move with generally documents, a laptop and tools and equipment. It also needs on-site provisions for its effective and safe installation for the duration of the project; his installation must enable him to intervene between a few hours and several days depending on the nature of his intervention. However, an industrial production unit does not generally offer good provisions for an effective and safe installation of the service technician.
  • U.S. Patent No. 5,452,908 discloses a portable wheeled workbench.
  • the bench includes a frame, a hinged and foldable panel on the chassis and a small storage box for tools.
  • the solution is interesting in that the workbench includes a foldable table, facilitating transport and allowing the technician to settle with his equipment, stored in the small chest.
  • This workbench, once folded, is still bulky and seems poorly suited for after-sales service, maintenance in all types of environments, tertiary or industrial.
  • Other folding sets are described in US 2012/217727 and US 6,182,724; these documents also illustrate the lack of robustness and ease of use / transport of known equipment.
  • the object of the invention is to propose a solution for overcoming the disadvantages of the prior art, in particular of the prior art mentioned above. More particularly, the invention aims to provide a bench solution that is easily transportable without compromising its robustness, and economic construction.
  • the invention relates to a portable workbench comprising: a foldable frame; and a main panel, forming a work surface, removably mounted on said frame; remarkable in that the workbench, in mounted position, has a rigid upper frame of square or rectangle shape; the panel comprising opposite first elements front and rear of said frame and the frame comprising second opposing elements of left and right of said frame, connected to said first elements; and in that said main panel comprises a first and a second rigid work plate, said first elements each comprising a first and a second sub-element fixed under said first and second work plates, respectively; said main panel further comprising pivot pins connecting the inner ends of each of said first and second sub-members, said pins being arranged so that said inner ends are contiguous in the mounted position of the workbench and are fit pivot upward to fold the panel to disassemble the workbench.
  • the rigid upper frame comprises only formed of the first front and rear elements as well as second left and right elements related to said first elements front and rear.
  • the rigid upper frame means able to withstand a mass deposited on the work surface and exerting a force in the direction of gravity.
  • the ends of the second elements of left and right extend over less than 20% of the length of said elements which is favorable to the distribution of load forces on the frame.
  • the rigid upper frame is preferably metallic.
  • the rigid plates can be made of wood, for example in multiplex, with a thickness of between 5 mm and 25 mm; other suitable materials may however be used, the rigid plates may for example be sheet metal, stainless steel and rigid polymer.
  • the upper rigid frame of the workbench can extend along the periphery of the panel. The contact between the inner ends of the first and second sub-elements of the front and rear of the frame allows blocking of the panel which, thus, can not pivot downward when a large load rests on the work surface.
  • the main panel in the mounted position on the chassis is configured to support a maximum mass of the order of 50 kg, 70 kg or up to 100 Kg, distributed on the surface.
  • the first and second sub-elements comprise inner contact edges, the inner ends of each of the first and second sub-elements being contiguous at said inner contact edges in the assembled position. the workbench.
  • the first and second sub-elements are metal sections of square or rectangular section and / or the second elements of left and right are round or oval metal profiles.
  • the first and second sub-elements having a square / rectangular profile have sides of length between 20 mm and 60 mm.
  • each of said first and second sub-elements comprises mounting plates for the pivot axes, said plates extending vertically and comprising projecting lower portions. said first and second sub-elements and provided with an orifice for accommodating said pivot axes.
  • the pivot axes are level, in the vertical direction, the lower sides of the first and second sub-elements.
  • This measure of the invention is interesting in that the lower sides of the sub-elements come into contact by pivoting in disassembled position of the frame.
  • the contact edges of the first and second sub-elements of square section have chamfers on the lower horizontal portions of said section, so as to form V-shaped housing for the pivot axes.
  • two rigid plates extend over more than 50% of the panel area, preferably more than 70%, more preferably 100% of the panel area; the space without rigid plate attached to the front and rear elements of the frame can be filled by a removable additional rigid plate.
  • the workbench comprises coupling means which ensure the connection of each of the outer ends of the first elements to the corresponding ends of the second elements.
  • the coupling means are advantageously composed of housing, for example by shoe, and clamping tab made on the first opposed elements front and rear.
  • the coupling means are made by clamp or by clamping clamp.
  • the coupling means are quick release means to facilitate removal of the removable panel.
  • the workbench comprises means for main locking of at least one of the two pivot axes, preferably each of the two pivot axes.
  • the foldable frame comprises in the mounted position of the bench, a rear frame extending vertically along the rear element of the frame and having at each of its horizontal ends a vertical pivot axis receiving a lateral frame, the second elements of the upper frame forming the upper elements of said side frames.
  • the chassis as such once mounted, thus describes a U-shape which comprises only at the structural level, the vertical elements formed by the rear frame and the two side frames.
  • each of the side frames is provided at its base with two steerable wheels with brake for moving the workbench.
  • the portable workbench is mobile and can for example serve as a servant.
  • the rear frame and / or the lateral frames are made by mechanically welded assembly of tubular elements.
  • These tubular elements may have a round section with a diameter of between 20 mm and 40 mm, or an equivalent oval or square section.
  • the rear frame of the frame comprises two half-frames and a vertical central pivot axis of said half-frames, said rear frame including, preferably further, auxiliary locking means of said central axis vertical.
  • the rear frame of the foldable frame comprises upper and lower horizontal elements, the vertical central axis of pivoting being formed by a vertical central rear hinge on each of said upper and lower horizontal elements.
  • the vertical central pivoting axis of the rear half-frames is arranged for a pivoting of said two half-frames towards the inside of the workbench.
  • the frame has a W-shape during its folding.
  • the frame in folded configuration has substantially the same external dimensions (length - width) as the main panel in folded form, so that a rigid plate of work. This measure facilitates the storage of the frame and panel (x) folded, for example in a transport bag of suitable size.
  • the rear half-frames and the side frames are of width between 400 mm and 1000 mm, preferably of the order of 600 to 700 mm. They may be of identical width, which reduces the bulk of the frame in the folded position.
  • the height of these elements can be of the order of 700 to 1000 mm.
  • first and second rigid plates of the panel are of square shape with sides of length between 400 mm and 1000 mm.
  • the workbench further comprises an anti-burglar system comprising fixed flaps extending along at least one of the lateral frames and / or the rear frame, preferably along each of said side and rear frames, and sashes pivotally mounted along the vertical front members of the side frames.
  • the workbench further comprises a secondary panel of the type of the main panel and intended to be mounted on the foldable frame to form a storage surface located below the work surface .
  • the lateral frames comprise horizontal lower elements vis-à-vis the second upper elements, the auxiliary panel being locked to said horizontal lower elements.
  • the measures of the invention are interesting in that the workbench is portable and robust. Indeed, the frame of square or rectangular shape can support a large load disposed on the panel of the workbench. The craftsman can work heavy loads. Thanks to the steerable wheels, the workbench can be easily moved to another workstation, or put into a room separate, allowing the craftsman to isolate himself to sit and do administrative tasks.
  • the panel is foldable and easily removable from the frame as well as simple construction which makes it economical. A very good compactness is achieved in particular with a folding frame in W, greatly facilitating transport in a van or car.
  • FIG. 1 is a perspective view of the portable workbench according to a preferred embodiment of the invention.
  • FIG. 2 is a top view of the foldable frame of the portable bench of Figure 1, removed from the bench and folded;
  • FIG. 3 is a side view of the main panel of the portable workbench of Figure 1, removed from the workbench;
  • FIG. 4 is a horizontal sectional view of the main panel of the portable workbench of FIG. 1;
  • FIG. 5 is a side view of the pivot axis of the main panel of the workbench of Figure 1;
  • FIG. 6 is a side view of the main panel of the workbench of Figure 1, removed from the workbench and unfolded;
  • FIG. 7 is a perspective view of the workbench in an alternative embodiment, with a main panel and a secondary storage panel;
  • FIG. 8 is a horizontal section VIII-VIII of the main panel of the workbench of Figure 1, at the coupling means;
  • FIG. 9 is a vertical section IX-IX of the main panel of the workbench of FIG. 1, at the level of the coupling means;
  • FIG. 10 is a horizontal section XX of the main panel of the workbench of FIG. 1, at the level of the main locking means;
  • - Figure 1 1 is a vertical section XI-XI of the main panel of the workbench of Figure 1, at the main locking means;
  • - Figure 12 is a top view of the main panel of the workbench of Figure 1, disassembled and unfolded;
  • FIG. 13 is a perspective view of the foldable frame of the workbench of Figure 1, removed from the workbench;
  • FIG. 14 is a horizontal section of the frame of the bench of Figure 1, at the auxiliary locking means;
  • FIG. 15 is a vertical section of the frame of the workbench of Figure 1, at a pivot axis of a side frame;
  • FIG. 16 is a perspective view of a workbench according to another alternative embodiment, with an anti-burglar system;
  • - Figure 17 is a view of the rear flaps of the frame of the workbench of Figure 16;
  • FIG. 18 is a view of the side flaps and front openings of the frame of the workbench of Figure 16;
  • FIG. 19 is a top view of the frame of the workbench of Figure 16, the anti-burglary system in the closed position;
  • FIG. 20 is a top view of the frame of the workbench of Figure 16 being folded;
  • FIG. 21 is a view of two modes of attachment of burglar-proof shutters frame frames.
  • Figure 1 is a perspective view of a portable workbench 2 in mounted position according to one embodiment of the invention.
  • the workbench 2 comprises a chassis 4 and a main panel 6 mounted on the frame 4 to form a working surface 8.
  • the main panel 6 comprises two rigid working plates 12 and 12 'as well as opposite rigid front structural elements 10' and rear 10 'which are fixed under the two rigid working plates 12 and 12.
  • the foldable frame 4 comprises second opposing elements of left 14 and right 14 'which are connected to the first elements 10 and 10'.
  • the front 10 and rear elements 10 'connected to the left-hand and right-hand elements 14' form an upper rigid frame 16 of the workbench 2 which is seen in phantom lines.
  • the upper rigid frame 16 of the workbench 2 extends along the peripheral contour of the panel; it can extend away from this contour to for example increase the work surface.
  • the distance of the elements 10, 10 ', 14 and 14' from the framework will preferably be of the order of 30 to 40 mm from the respective edges of the panel 6.
  • the first elements 10 and 10 'each comprise first 18 and second 18 sub-elements which are fixed under the first 12 and second 12 'rigid plates, respectively.
  • the first 18 and second 18 'sub-elements are connected at their respective inner ends 20 and 20' by pivot axes 22 and 22 '.
  • pivot axis 22 One can see the pivot axis 22 in Figure 3 showing a side view of the main panel 6 removed from the frame and semi-folded.
  • the pivot axes 22 and 22 ' are arranged so that the inner ends 20 and 20' of the first and second sub-elements 18 and 18 'are contiguous in mounted position of the panel on the chassis.
  • the "upward" direction means when the panel is mounted on the chassis.
  • the workbench 2 may comprise coupling means 24 and 24 'which ensure the connection of each of the outer ends 25 and 25' of the first front and rear elements 10 'to the corresponding ends of the second left and right 14 elements 14 .
  • the frame is rigid, essentially in that it is able to withstand a mass placed on the work surface.
  • the established may also comprise main locking means 26 pivot axes 22 and 22 'so as to block the possibility of folding the panel 6. It can be seen again in Figure 3, the panel 6 in the disassembled position of the frame 4 and in progress folding, position in which the first and second sub-elements 18 and 18 'carrying the rigid plates 12 and 12' are folded against each other.
  • the coupling means 24 and 24 'and the locking means 26 of the workbench can be observed.
  • a preferred embodiment of the pivot axes 22 and 22 ' is illustrated in Figures 4 to 6.
  • a preferred embodiment of the coupling means 24 and 24' is illustrated in Figures 7 to 9 and finally a preferred embodiment of the means of main lock 26 is illustrated in Figures 10 to 12.
  • the foldable frame 4 which is in the position mounted in Figure 1, is further illustrated in plan view in Figure 2 and in the disassembled and folded position.
  • the foldable chassis 4 comprises a rear frame 28 extending, in mounted position, vertically along the rear element 10 'of the rigid frame 16 of the workbench 2.
  • the rear frame 28 has at its ends 29 and 29 in the horizontal direction of the vertical pivot axes 30 and 30 ', visible in Figure 2, which themselves receive side frames 32 and 32'.
  • the second elements 14 and 14 'of the rigid upper frame 16 form the upper elements of the side frames 32 and 32'.
  • the rear frame 28 of the frame 4 comprises upper and lower horizontal members 36 and 36 'having a central vertical pivoting hinge 38 and auxiliary locking means 40 of these hinges.
  • the activation of the auxiliary locking means 40 of the central vertical pivot hinges 38 makes it possible to block the rear frame 28 in the mounted position.
  • the locking means 40 of the hinges 38 are released and the rear frame 28 folds.
  • the rear frame 28 may comprise two half-frames 42 and 42 'of identical size and which are connected by the vertical pivoting hinges 38.
  • the hinges 38 may be arranged so that the pivoting of the two half-frames 42 and 42' of dimension identical can be done inward from the workbench.
  • the side frames 32 and 32 ' are folded over the two half-frames 42 and 42' by pivoting about the vertical pivot axes 30 and 30 '.
  • the frame 4 has a W-shape during its folding.
  • the bent shaped frame 4 may have the same overall dimensions as the folded main panel.
  • FIG. 6 is a view of the main panel 6 of the workbench in a preferred embodiment, it is shown removed from the workbench.
  • the front element 10 can be seen among the first opposed front and rear elements of the framework, one of the pivot axes 22 linking the inner ends of the first and second sub-elements 18 and 18 ';
  • FIG. 6 also shows the coupling means 24 and 24 ', the main locking means 26 as well as the rigid plates 12 and 12' fixed to the front element 10 and forming the working surface 8.
  • FIG. is an enlarged view of the main panel 6 at one of the pivot axes 22.
  • the first and second sub-elements 18 and 18 ' are metal profiles which comprise mounting plates 44 and 44' of the pivot axes.
  • These plates extend vertically and are welded to each of the vertical faces of the first and second sub-elements 18 and 18 'at the ends of these sub-elements. These plates comprise a lower portion 45 and 45 'projecting from the sub-elements and provided with an orifice 49 for accommodating the pivot axis 22. It can be particularly well observed in this image that the inner ends 20 and 20' first and second sub-elements 18 and 18 'are joined at their contact edges 46 and 46'.
  • the pivot axis 22 is plumb with the contact edges. The mass disposed on the working surface of the panel forces the pivoting of each of the first and second sub-elements 18 and 18 'in the direction of approach of the contact edges 46 and 46'.
  • the sub-elements 18 and 18 ' may be square or rectangular sections, and each of the contact edges 46 and 46' may extend along the square or rectangular section.
  • the section of the square sections is advantageously of a side length "s" of between 25 mm and 60 mm.
  • the rigid plates 12 and 12 ' may be wooden boards, for example solid wood. They can alternatively be multiplex plates, OSB or MDF and secured by screws to the front and back elements of the frame.
  • a clearance "j" visible in FIG.
  • each of the contact edges 46 and 46 'of the inner ends 20 and 20' comprise chamfers 47 and 47 'made on the lower horizontal portions of these edges so as to form V-shaped housings for the pivot axis 22.
  • the pivot axis 22 is level, in the vertical direction, with the lower sides 48 and 48 'of the first and second sub-elements 18 and 18'. This measure is favorable for the folding dimensions in that the sub-elements, once folded, come into contact with each other over their entire length.
  • Fig. 4 is a horizontal sectional view IV-IV at the pivot axis 22.
  • the pivot axis 22 is a stud stopped at one end at the mounting plates by a shoulder and fixed at an opposite end by a nut to opposite mounting plates.
  • FIG. 7 is a perspective view of the portable workbench 2 in an alternative embodiment.
  • the workbench includes a main panel 6 and a secondary storage panel 6 'of material.
  • the storage panel 6 ' is of identical construction to that of the main panel 6. The dimension of the panel 6' may, however, differ from that of the main panel for its arrangement within the interior geometric limits of the frame.
  • the secondary panel 6 ' is mounted on the foldable frame 4 to form a storage surface 8' below the working surface 8.
  • the side frames 32 and 32 'of the foldable frame 4 comprise horizontal lower elements 50 and 50'. opposite the second opposing elements of left and right 14 and 14 '.
  • the storage panel 6 ' is connected to these horizontal lower elements 50 and 50'.
  • the lateral frames finally comprise vertical front elements 52 and 52 'and vertical rear members 54 and 54' which connect the corresponding ends of the upper horizontal members 14 and 14 'and the lower horizontal members 50 and 50'.
  • the side frames 32 and 32 ' may be mechanically welded assemblies of tubular elements. These may have a section of between 20 mm and 40 mm.
  • the workbench preferably has steerable wheels 34 plumb with each of the front vertical members 52 and 52 'and rear 54 and 54'. These wheels 34 may be provided with brake. It can be seen that the side frames 32 and 32 'have intermediate horizontal elements 56 and 56' away from the horizontal lower and upper elements.
  • the storage panel 6 ' can be linked to each of these horizontal elements.
  • the workbench may comprise a second secondary storage panel, the first being connectable to the lower elements 50 and 50 'of the frame, the second being connectable to the intermediate elements 56 and 56' of the side frames 32 and 32 '.
  • the secondary panel 6 'of the workbench 2 in addition to the main panel 6, allows the storage of material which makes the workbench multifunctional.
  • the foldable workbench 2 provided with wheels 34 is thus mobile and may for example serve as a servant.
  • Figures 8 and 9 are longitudinal horizontal sections VIII-VIII and vertical IX-IX of the element 10 of the main panel 6 at the coupling means 24 and 24 'with the frame 4.
  • the coupling means 24 and 24 'can advantageously be quick release means to facilitate removal of the removable panel.
  • the latter provide a coupling, between the main panel 6 and the frame 4, made by positioning the second left and right elements 14 and 14 'of the upper frame between rounded housing 58' and coupling lugs 60 ' which are made at the outer ends 62 and 62 'of the front and rear frame members 10 and 10'.
  • the elements 14 and 14 ' can be held with clearance between the housing 28' and the tabs 60 '.
  • the elements 14 and 14 ' are maintained with a clamping in the coupling means 24 and 24 ', the housing 58' and the tabs 60 'rubbing on the elements 14 and 14' during the activation of the coupling.
  • the rounded housing 58 ' can be made in aluminum shoes fixed in the square sections of front and rear frame 10 and 10'.
  • the coupling lugs 60 ' may be attached to arms 64' able to slide in the profiles 10 and 10 ', preferably spring-mounted 66', and may comprise an activation finger 68 'passing through a light 70' made on the frame profiles.
  • the activation fingers 68 ' are advantageously oriented towards the inside of the workbench.
  • the arms 64 ' can be stopped, for example by screws 72' (or CHC screws which are housed in the profilel O - not shown) to secure the coupling.
  • Figure 12 is a top view of the main panel 6 of the workbench 2. It can be seen the rigid plates 12 and 12 'fixed by means of screws 74 to the front and rear elements 10 and 10' of the frame of the established. In this case, the screws 74 are countersunk to prevent protrusion above the surface of the panel 6 of the workbench, and are engaged in nuts comprising nylon rings to prevent inadvertent loosening.
  • FIG. 11 is a longitudinal vertical section XI-XI of the front element 10 of the framework at the level of the main locking means 26 of the pivot axes 22 which are in this case activated.
  • the main locking means 26 comprise a bolt 76 adapted to straddle the inner ends of the first and second sub-elements 18 and 18 '.
  • the bolt 76 is housed in a passage 78 (also visible on the cross section aa 'of Figure 1 1) delimited by the horizontal upper wall of the profile and ribs extending on the vertical walls of the profile.
  • FIG. 10 is a horizontal section XX of the element 10 of the main panel 6 at the level of the main locking means 26.
  • the main locking means 26 further comprise an activation finger 80 passing through a light 82 made on the profile.
  • FIG. 13 is a perspective view of the frame 4.
  • FIG. 14 is a horizontal section of the auxiliary locking means 40 of the rear pivoting central axis 84.
  • the locking means 40 comprise a tube 90 adapted to engage with two orifices 92 and 92 'made at the ends of the rear elements. horizontally pivoting half-frames 42 and 42 ', respectively. This commitment makes it possible to block the pivoting of the half-frames.
  • the tube 90 may comprise a solid bottom and may be spring-mounted bearing on said bottom.
  • the tube 90 may comprise a handling finger 94 extending in a slot 96 of one of the horizontal elements.
  • FIG. 15 is a vertical section of the frame 4 at one of the pivot axes 30 'of the side frame 32'.
  • the pivot axes 30 and 30 ' are formed by studs 98' constructed at the upper and lower ends of the vertical outer members 86 and 86 'of the side frames 32 and 32'.
  • the studs 98 ' are in this case engaged in inserts 100' housed in the upper and lower horizontal tubes of the half frames 42 and 42 '.
  • Brackets 102 attached to the vertical rear members 54 and 54 'of the side frames 32 and 32' include orifices for the passage studs 98 preferably via a spacer 104 '.
  • a washer 106 ' can be made between the head of the stud and the spacer 104'.
  • Figure 16 is a view of a workbench 2 according to another embodiment further comprising an anti-burglar system 108 of the workbench.
  • the work panel 6 and the material storage panel 6 ' are mounted on the workbench as shown in connection with FIG. 7.
  • the anti-burglar system comprises side flaps 110 and 110 which extend on the side frames. 32 and 32 'and rear flaps 1 12 and 1 12' which extend on the rear frame 28.
  • the burglar-proof system 108 also comprises openings 1 14 and 1 14 'pivotally mounted along the front elements 52 and 52 'side frames 32 and 32'.
  • the shutters can be solid walls, for example metal or fences.
  • Figure 18 is a view of the openings 14 and 14 'removed from the side frames 32 and 32' of the foldable frame.
  • the opening 1 14 'of the right is connected to the side flap 1 10' by a vertical hinge 1 16 '
  • the left opening 1 14 is connected to the side flap 1 10 by a vertical hinge 1 16.
  • the inner edges 120 and 120 'of the openings 1 14 and 1 14' are adapted to engage with each other, one of the edges comprising an orifice 122 adapted to receive a bridge 124 made on the other edges to close access to the interior of the workbench for example by means of a padlock applied to the bridge.
  • Figure 17 is a view of the disassembled rear flaps of the foldable frame.
  • the rear flaps 1 12 and 1 12 ' are connected together by a vertical hinge 1 18. It should be noted that the inward orientation of the activation fingers 68', 80 and 94 presented in connection with FIGS. 10 and 14, respectively, are not accessible from outside the workbench once the flaps and the opening are fixed on the frame: This embodiment avoids any intrusive attempt to dismantle the workbench.
  • FIG. 19 is a top view of the frame 4 of the workbench 2 and equipped with the anti-theft system 108 in the closed position.
  • the burglar-resistant system can be seen which includes the front doors 14 and 14 ', the front vertical hinges 16 and 16', the rear hinge 118, the side flaps 110 and 110 ', and the shutters. rear 1 12 and 1 12 'and the trigger guard 124.
  • the openings 1 14 and 1 14 ' are closed and prevent access to the interior of the workbench.
  • the passages between the rear frame 28 and each of the side frames 32 and 32 ' are not covered with an anti-burglar flap, they are made with a width less than 25 mm, preferably less than 15 mm.
  • FIG. 21 illustrates two alternative embodiments of fastening the flaps on the frames, the first mode by bolt 125 to nut, the second mode by rivet 126.
  • FIG. 20 is a view of the chassis 4 equipped with shutters and openings and semi-folded position, showing the intermediate configuration in W of the frame during folding. The openings 1 14 and 1 14 'can be folded against the flaps 1 10 and 1 10' through the vertical hinges 1 16 and 1 16 ', respectively.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)

Abstract

The invention concerns a portable workbench (2) comprising a foldable frame (4) and a main panel (6) to be mounted on said frame (4) to form a work surface (8); the workbench (2), in its mounted position, has a rigid upper structure (16) extending in a square or rectangular shape; the main panel (6) comprises two pivoting sub-panels (12, 12'), configured to pivot upwards to fold the panel (6) in order to dismantle the workbench (2).

Description

Etabli portable de chantier  Portable workbench
L'invention a trait au domaine des équipements d'atelier ou de chantier. Plus particulièrement, l'invention a trait à un établi portable. The invention relates to the field of workshop or site equipment. More particularly, the invention relates to a portable workbench.
Un technicien électrique (ou autre), dans le cadre d'une intervention de maintenance ou de dépannage sur chantier, a besoin de se déplacer avec généralement des documents, un ordinateur portable ainsi que des outils et du matériel. Il a aussi besoin sur place de dispositions permettant son installation effective et en toute sécurité pour la durée du chantier ; son installation doit lui permettre d'intervenir entre quelques heures jusqu'à plusieurs jours selon la nature de son intervention. Cependant, une unité de production industrielle n'offre généralement pas de bonnes dispositions pour une installation effective et en toute sécurité du technicien d'intervention. An electrical technician (or other), as part of a maintenance or repair work on site, needs to move with generally documents, a laptop and tools and equipment. It also needs on-site provisions for its effective and safe installation for the duration of the project; his installation must enable him to intervene between a few hours and several days depending on the nature of his intervention. However, an industrial production unit does not generally offer good provisions for an effective and safe installation of the service technician.
Ce besoin d'installer un chantier provisoire permettant de travailler confortablement et en sécurité est encore plus sensible dans les métiers du bâtiment, car le chantier ne se trouve pas dans une usine à accès contrôlé, mais dans un espace accessible à différents corps de métier. Un technicien - par exemple un artisan du bâtiment- aura typiquement besoin d'un établi qu'il puisse facilement transporter sur site, tout en étant robuste. Il aura également besoin d'une solution pour mettre certains de ses outils ou bien du matériel en sécurité lorsqu'il s'absente du chantier. This need to install a temporary work site to work comfortably and safely is even more sensitive in the building trades, because the site is not in a controlled access factory, but in an area accessible to different trades. A technician - for example, a building tradesman - will typically need a workbench that can be easily transported on site, while being robust. He will also need a solution to put some of his tools or equipment safely when he is away from the job site.
Le document de brevet US 5,452,908 divulgue un établi portable sur roues. L'établi comprend un châssis, un panneau monté articulé et pliable sur le châssis ainsi qu'un petit coffre de stockage pour des outils. La solution est intéressante en ce que l'établi comprend une table repliable, facilitant le transport et permettant au technicien de s'installer avec son matériel, stocké dans le petit coffre. Cet établi, une fois replié, reste encore volumineux et semble peu adapté à des travaux de service après-vente, de maintenance en tout type de milieux, tertiaires ou industriels. D'autres établis pliants sont décrits dans les US 2012/217727 et US 6,182,724 ; ces documents illustrent également le manque de robustesse et de facilité d'usage/transport des équipements connus. U.S. Patent No. 5,452,908 discloses a portable wheeled workbench. The bench includes a frame, a hinged and foldable panel on the chassis and a small storage box for tools. The solution is interesting in that the workbench includes a foldable table, facilitating transport and allowing the technician to settle with his equipment, stored in the small chest. This workbench, once folded, is still bulky and seems poorly suited for after-sales service, maintenance in all types of environments, tertiary or industrial. Other folding sets are described in US 2012/217727 and US 6,182,724; these documents also illustrate the lack of robustness and ease of use / transport of known equipment.
L'invention a pour objectif de proposer une solution pour pallier les désavantages de l'art antérieur, en particulier de l'art antérieur ci-dessus cité. Plus particulièrement, l'invention a pour objectif de proposer une solution d'établi qui soit transportable facilement sans compromettre sa robustesse, et de construction économique. The object of the invention is to propose a solution for overcoming the disadvantages of the prior art, in particular of the prior art mentioned above. More particularly, the invention aims to provide a bench solution that is easily transportable without compromising its robustness, and economic construction.
L'invention a pour objet un établi portable comprenant : un châssis pliable ; et un panneau principal, formant surface de travail, monté de manière amovible sur ledit châssis ; remarquable en ce que l'établi, en position montée, présente une ossature supérieure rigide de forme carrée ou rectangle; le panneau comprenant des premiers éléments opposés avant et arrière de ladite ossature et le châssis comprenant des deuxièmes éléments opposés de gauche et de droite de ladite ossature, liés auxdits premiers éléments ; et en ce que ledit panneau principal comprend une première et une deuxième plaque rigide de travail, lesdits premiers éléments comprenant chacun un premier et un deuxième sous-élément fixés sous lesdites première et deuxième plaques de travail, respectivement; ledit panneau principal comprenant, en outre, des axes de pivotement reliant les extrémités intérieures de chacun desdits premier et deuxième sous-éléments, lesdits axes étant arrangés de sorte à ce que lesdites extrémités intérieures sont jointives en position montée de l'établi et sont aptes à pivoter vers le haut pour le pliage du panneau en vue du démontage de l'établi. L'ossature supérieure rigide s'entend uniquement formée des premiers éléments avant et arrière ainsi que des deuxième éléments de gauche et de droite liés auxdits premiers éléments avant et arrière. The invention relates to a portable workbench comprising: a foldable frame; and a main panel, forming a work surface, removably mounted on said frame; remarkable in that the workbench, in mounted position, has a rigid upper frame of square or rectangle shape; the panel comprising opposite first elements front and rear of said frame and the frame comprising second opposing elements of left and right of said frame, connected to said first elements; and in that said main panel comprises a first and a second rigid work plate, said first elements each comprising a first and a second sub-element fixed under said first and second work plates, respectively; said main panel further comprising pivot pins connecting the inner ends of each of said first and second sub-members, said pins being arranged so that said inner ends are contiguous in the mounted position of the workbench and are fit pivot upward to fold the panel to disassemble the workbench. The rigid upper frame comprises only formed of the first front and rear elements as well as second left and right elements related to said first elements front and rear.
Aussi, l'ossature supérieure rigide s'entend comme apte à résister à une masse déposée sur la surface de travail et exerçant une force dans le sens de la gravité. Avantageusement, les extrémités des deuxièmes éléments de gauche et de droite s'étendent sur moins de 20% de la longueur desdits éléments ce qui est favorable à la répartition des efforts de charge sur l'ossature. Also, the rigid upper frame means able to withstand a mass deposited on the work surface and exerting a force in the direction of gravity. Advantageously, the ends of the second elements of left and right extend over less than 20% of the length of said elements which is favorable to the distribution of load forces on the frame.
L'ossature supérieure rigide est préférablement métallique. Les plaques rigides peuvent être en bois, par exemple en multiplex, d'épaisseur comprise entre 5 mm et 25 mm ; d'autres matériaux appropriés peuvent toutefois être employés, les plaques rigides peuvent par exemple être en tôle, en inox et en polymère rigide. L'ossature rigide supérieure de l'établi peut s'étendre le long de la périphérie du panneau. Le contact entre les extrémités intérieures des premier et deuxième sous- éléments avant et arrière de l'ossature permet le blocage du panneau qui, ainsi, ne peut pas pivoter vers le bas lorsqu'une charge importante repose sur la surface de travail. Avantageusement, le panneau principal en position montée sur le châssis est configuré pour soutenir une masse maximale de l'ordre de 50 kg, 70 kg ou jusqu'à 100 Kg, répartie sur la surface. The rigid upper frame is preferably metallic. The rigid plates can be made of wood, for example in multiplex, with a thickness of between 5 mm and 25 mm; other suitable materials may however be used, the rigid plates may for example be sheet metal, stainless steel and rigid polymer. The upper rigid frame of the workbench can extend along the periphery of the panel. The contact between the inner ends of the first and second sub-elements of the front and rear of the frame allows blocking of the panel which, thus, can not pivot downward when a large load rests on the work surface. Advantageously, the main panel in the mounted position on the chassis is configured to support a maximum mass of the order of 50 kg, 70 kg or up to 100 Kg, distributed on the surface.
Selon un mode de réalisation avantageux de l'invention, les premier et deuxième sous-éléments comprennent des bords intérieurs de contact, les extrémités intérieures de chacun des premier et deuxième sous-éléments étant jointives au niveau desdits bords intérieurs de contact en position montée de l'établi. According to an advantageous embodiment of the invention, the first and second sub-elements comprise inner contact edges, the inner ends of each of the first and second sub-elements being contiguous at said inner contact edges in the assembled position. the workbench.
Préférentiellement, les premier et deuxième sous-éléments sont des profilés métalliques de section carré ou rectangulaire et/ou les deuxième éléments de gauche et de droite sont profilés métalliques ronds ou ovales. Preferably, the first and second sub-elements are metal sections of square or rectangular section and / or the second elements of left and right are round or oval metal profiles.
Avantageusement, les premier et deuxième sous-éléments à profil carré/rectangulaire ont des côtés de longueur entre 20 mm et 60 mm. Advantageously, the first and second sub-elements having a square / rectangular profile have sides of length between 20 mm and 60 mm.
Préférentiellement, chacun desdits premier et deuxième sous-éléments comprend des platines de montage des axes de pivotement, lesdites platines s'étendant verticalement et comprenant des portions inférieures en saillie desdits premier et deuxième sous-éléments et munies d'un orifice pour loger lesdits axes de pivotement. Preferably, each of said first and second sub-elements comprises mounting plates for the pivot axes, said plates extending vertically and comprising projecting lower portions. said first and second sub-elements and provided with an orifice for accommodating said pivot axes.
Préférentiellement, les axes de pivotement sont à niveau, dans la direction verticale, des côtés inférieurs des premier et deuxième sous-éléments. Cette mesure de l'invention est intéressante en ce que les côtés inférieurs des sous- éléments viennent en contact par pivotement en position démontée du châssis. Preferably, the pivot axes are level, in the vertical direction, the lower sides of the first and second sub-elements. This measure of the invention is interesting in that the lower sides of the sub-elements come into contact by pivoting in disassembled position of the frame.
Avantageusement, les bords de contact des premier et deuxième sous- éléments de section carré présentent des chanfreins sur les portions horizontales inférieures de ladite section, de sorte à former des logements en V pour les axes de pivotement. Advantageously, the contact edges of the first and second sub-elements of square section have chamfers on the lower horizontal portions of said section, so as to form V-shaped housing for the pivot axes.
De manière avantageuse, deux plaques rigides s'étendent sur plus de 50% de l'étendue du panneau, préférentiellement plus de 70%, plus préférentiellement 100% de l'étendue du panneau ; l'espace sans plaque rigide fixée aux éléments avant et arrière de l'ossature pouvant être comblé par une plaque rigide supplémentaire amovible. Advantageously, two rigid plates extend over more than 50% of the panel area, preferably more than 70%, more preferably 100% of the panel area; the space without rigid plate attached to the front and rear elements of the frame can be filled by a removable additional rigid plate.
Selon un mode de réalisation avantageux de l'invention, l'établi comprend des moyens d'accouplement qui assurent la liaison de chacune des extrémités extérieures des premiers éléments aux extrémités correspondantes des deuxièmes éléments. Les moyens d'accouplement sont avantageusement composés de logement, par exemple par sabot, et de patte de serrage réalisés sur les premiers éléments opposés avant et arrière. En alternative, les moyens d'accouplement sont réalisés par collier ou bien par genouillère de serrage. According to an advantageous embodiment of the invention, the workbench comprises coupling means which ensure the connection of each of the outer ends of the first elements to the corresponding ends of the second elements. The coupling means are advantageously composed of housing, for example by shoe, and clamping tab made on the first opposed elements front and rear. Alternatively, the coupling means are made by clamp or by clamping clamp.
Préférentiellement, les moyens d'accouplement sont des moyens à libération rapide pour faciliter le retrait du panneau amovible. Selon un mode de réalisation avantageux de l'invention, l'établi comprend des moyens de verrouillage principal d'au moins un des deux axes de pivotement, préférentiellement de chacun des deux axes de pivotement. Preferably, the coupling means are quick release means to facilitate removal of the removable panel. According to an advantageous embodiment of the invention, the workbench comprises means for main locking of at least one of the two pivot axes, preferably each of the two pivot axes.
Selon un mode de réalisation avantageux de l'invention, le châssis pliable comprend en position montée de l'établi, un cadre arrière s'étendant verticalement le long de l'élément arrière de l'ossature et présentant à chacune de ses extrémités horizontales un axe de pivotement vertical recevant un cadre latéral, les deuxièmes éléments de l'ossature supérieure formant les éléments supérieurs desdits cadres latéraux. En particulier, le châssis en tant que tel, une fois monté, décrit ainsi une forme en U qui comprend uniquement, au niveau structurel, les éléments verticaux formés par le cadre arrière et les deux cadres latéraux. According to an advantageous embodiment of the invention, the foldable frame comprises in the mounted position of the bench, a rear frame extending vertically along the rear element of the frame and having at each of its horizontal ends a vertical pivot axis receiving a lateral frame, the second elements of the upper frame forming the upper elements of said side frames. In particular, the chassis as such, once mounted, thus describes a U-shape which comprises only at the structural level, the vertical elements formed by the rear frame and the two side frames.
Selon un mode de réalisation avantageux de l'invention, chacun des cadres latéraux est muni, à sa base, de deux roues orientables avec frein pour le déplacement de l'établi. L'établi portable est ainsi mobile et peut par exemple servir de servante. According to an advantageous embodiment of the invention, each of the side frames is provided at its base with two steerable wheels with brake for moving the workbench. The portable workbench is mobile and can for example serve as a servant.
Avantageusement, le cadre arrière et/ou les cadres latéraux sont réalisés par assemblage mécano-soudé d'éléments tubulaires. Ces éléments tubulaires peuvent avoir une section ronde de diamètre compris entre 20 mm et 40 mm, ou une section ovale ou carrée équivalente. Advantageously, the rear frame and / or the lateral frames are made by mechanically welded assembly of tubular elements. These tubular elements may have a round section with a diameter of between 20 mm and 40 mm, or an equivalent oval or square section.
Selon un mode de réalisation avantageux de l'invention, le cadre arrière du châssis comprend deux demi-cadres et un axe central vertical de pivotement desdits demi-cadres, ledit cadre arrière comprenant, préférentiellement en outre, des moyens de verrouillage auxiliaires dudit axe central vertical. Selon un mode de réalisation avantageux de l'invention, le cadre arrière du châssis pliable comprend des éléments horizontaux supérieur et inférieur, l'axe central vertical de pivotement étant formé par une charnière arrière centrale verticale sur chacun desdits éléments horizontaux supérieur et inférieur. According to an advantageous embodiment of the invention, the rear frame of the frame comprises two half-frames and a vertical central pivot axis of said half-frames, said rear frame including, preferably further, auxiliary locking means of said central axis vertical. According to an advantageous embodiment of the invention, the rear frame of the foldable frame comprises upper and lower horizontal elements, the vertical central axis of pivoting being formed by a vertical central rear hinge on each of said upper and lower horizontal elements.
Selon un mode de réalisation avantageux de l'invention, l'axe central vertical de pivotement des demi-cadres arrière est arrangé pour un pivotement desdits deux demi-cadres vers l'intérieur de l'établi. Le châssis présente une forme en W au cours de son pliage. According to an advantageous embodiment of the invention, the vertical central pivoting axis of the rear half-frames is arranged for a pivoting of said two half-frames towards the inside of the workbench. The frame has a W-shape during its folding.
Avantageusement, le châssis en configuration pliée présente sensiblement les mêmes dimensions extérieures (longueur - largeur) que le panneau principal en forme pliée, donc qu'une plaque rigide de travail. Cette mesure facilite le rangement des châssis et panneau(x) pliés, par exemple dans une housse de transport de dimension adaptée. Advantageously, the frame in folded configuration has substantially the same external dimensions (length - width) as the main panel in folded form, so that a rigid plate of work. This measure facilitates the storage of the frame and panel (x) folded, for example in a transport bag of suitable size.
Avantageusement, les demi-cadres arrière et les cadres latéraux sont de largeur comprise entre 400 mm et 1000 mm, de préférence de l'ordre de 600 à 700 mm. Ils peuvent être de largeur identique, ce qui réduit l'encombrement du châssis en position pliée. La hauteur de ces éléments peut être de l'ordre de 700 à 1000 mm. Advantageously, the rear half-frames and the side frames are of width between 400 mm and 1000 mm, preferably of the order of 600 to 700 mm. They may be of identical width, which reduces the bulk of the frame in the folded position. The height of these elements can be of the order of 700 to 1000 mm.
Encore avantageusement, les première et deuxième plaques rigides du panneau sont de forme carrée avec des côtés de longueur comprise entre 400 mm et 1000 mm. Still advantageously, the first and second rigid plates of the panel are of square shape with sides of length between 400 mm and 1000 mm.
Selon un mode de réalisation avantageux de l'invention, l'établi comprend, en outre, un système antieffraction comprenant des volets fixes s'étendant le long d'au moins un des cadres latéraux et/ou du cadre arrière, préférentiellement le long de chacun desdits cadres latéraux et arrière, et des ouvrants montés pivotant le long des éléments avant verticaux des cadres latéraux. According to an advantageous embodiment of the invention, the workbench further comprises an anti-burglar system comprising fixed flaps extending along at least one of the lateral frames and / or the rear frame, preferably along each of said side and rear frames, and sashes pivotally mounted along the vertical front members of the side frames.
Selon un mode de réalisation avantageux de l'invention, l'établi comprend en outre un panneau secondaire du type de celui du panneau principal et destiné à être monté sur le châssis pliable pour former une surface de stockage située en dessous de la surface de travail. According to an advantageous embodiment of the invention, the workbench further comprises a secondary panel of the type of the main panel and intended to be mounted on the foldable frame to form a storage surface located below the work surface .
De manière avantageuse, les cadres latéraux comprennent des éléments inférieurs horizontaux en vis-à-vis des deuxièmes éléments supérieurs, le panneau auxiliaire étant verrouillé auxdits éléments inférieurs horizontaux. Advantageously, the lateral frames comprise horizontal lower elements vis-à-vis the second upper elements, the auxiliary panel being locked to said horizontal lower elements.
Les mesures de l'invention sont intéressantes en ce que l'établi est portable et robuste. En effet, l'ossature de forme carrée ou rectangulaire permet de soutenir une charge importante disposée sur le panneau de l'établi. L'artisan peut donc travailler des charges lourdes. Grâce aux roues orientables, l'établi peut être facilement déplacé sur un autre poste, ou mis dans une pièce séparée, permettant à l'artisan de s'isoler pour s'attabler et faire des tâches administratives. The measures of the invention are interesting in that the workbench is portable and robust. Indeed, the frame of square or rectangular shape can support a large load disposed on the panel of the workbench. The craftsman can work heavy loads. Thanks to the steerable wheels, the workbench can be easily moved to another workstation, or put into a room separate, allowing the craftsman to isolate himself to sit and do administrative tasks.
Le panneau est pliable et amovible aisément du châssis ainsi que de construction simple ce qui le rend économique. Une très bonne compacité est notamment atteinte avec un châssis pliable en W, facilitant grandement le transport en camionnette ou voiture. The panel is foldable and easily removable from the frame as well as simple construction which makes it economical. A very good compactness is achieved in particular with a folding frame in W, greatly facilitating transport in a van or car.
D'autres caractéristiques et avantages de la présente invention seront mieux compris à l'aide de la description et des dessins parmi lesquels : Other features and advantages of the present invention will be better understood from the description and the drawings, among which:
- La figure 1 est une vue en perspective de l'établi portable selon un mode préféré de réalisation de l'invention ; - Figure 1 is a perspective view of the portable workbench according to a preferred embodiment of the invention;
- La figure 2 est une vue de dessus du châssis pliable de l'établi portable de la figure 1 , démonté de l'établi et replié ; - Figure 2 is a top view of the foldable frame of the portable bench of Figure 1, removed from the bench and folded;
- La figure 3 est une vue de côté du panneau principal de l'établi portable de la figure 1 , démonté de l'établi ; - La figure 4 est une vue en coupe horizontale du panneau principal de l'établi portable de la figure 1 ; - Figure 3 is a side view of the main panel of the portable workbench of Figure 1, removed from the workbench; FIG. 4 is a horizontal sectional view of the main panel of the portable workbench of FIG. 1;
- La figure 5 est une vue de côté de l'axe de pivotement du panneau principal de l'établi de la figure 1 ; - Figure 5 is a side view of the pivot axis of the main panel of the workbench of Figure 1;
- La figure 6 est une vue de côté du panneau principal de l'établi de la figure 1 , démonté de l'établi et déplié ; - Figure 6 is a side view of the main panel of the workbench of Figure 1, removed from the workbench and unfolded;
- La figure 7 est une vue en perspective de l'établi dans un mode alternatif de réalisation, avec un panneau principal et un panneau secondaire de stockage ; FIG. 7 is a perspective view of the workbench in an alternative embodiment, with a main panel and a secondary storage panel;
- La figure 8 est une section horizontale VIII-VIII du panneau principal de l'établi de la figure 1 , au niveau des moyens d'accouplement ; - Figure 8 is a horizontal section VIII-VIII of the main panel of the workbench of Figure 1, at the coupling means;
- La figure 9 est une section vertical IX-IX du panneau principal de l'établi de la figure 1 , au niveau des moyens d'accouplement ; - La figure 10 est une section horizontale X-X du panneau principal de l'établi de la figure 1 , au niveau des moyens de verrouillage principal ; FIG. 9 is a vertical section IX-IX of the main panel of the workbench of FIG. 1, at the level of the coupling means; FIG. 10 is a horizontal section XX of the main panel of the workbench of FIG. 1, at the level of the main locking means;
- La figure 1 1 est une section verticale XI-XI du panneau principal de l'établi de la figure 1 , au niveau des moyens de verrouillage principal ; - La figure 12 est une vue de dessus du panneau principal de l'établi de la figure 1 , démonté et déplié ; - Figure 1 1 is a vertical section XI-XI of the main panel of the workbench of Figure 1, at the main locking means; - Figure 12 is a top view of the main panel of the workbench of Figure 1, disassembled and unfolded;
- La figure 13 est une vue en perspective du châssis pliable de l'établi de la figure 1 , démonté de l'établi ; - Figure 13 is a perspective view of the foldable frame of the workbench of Figure 1, removed from the workbench;
- La figure 14 est une section horizontale du châssis de l'établi de la figure 1 , au niveau des moyens de verrouillage auxiliaire ; - Figure 14 is a horizontal section of the frame of the bench of Figure 1, at the auxiliary locking means;
- La figure 15 est une section verticale du châssis de l'établi de la figure 1 , au niveau d'un axe de pivotement d'un cadre latéral ; - Figure 15 is a vertical section of the frame of the workbench of Figure 1, at a pivot axis of a side frame;
- La figure 16 est une vue en perspective d'un établi selon un autre mode alternatif de réalisation, avec un système anti-effraction ; - La figure 17 est une vue des volets arrières du châssis de l'établi de la figure 16 ; - Figure 16 is a perspective view of a workbench according to another alternative embodiment, with an anti-burglar system; - Figure 17 is a view of the rear flaps of the frame of the workbench of Figure 16;
- La figure 18 est une vue des volets latéraux et des ouvrants avant du châssis de l'établi de la figure 16 ; - Figure 18 is a view of the side flaps and front openings of the frame of the workbench of Figure 16;
- La figure 19 est une vue de dessus du châssis de l'établi de la figure 16, le système antieffraction en position fermée ; - Figure 19 is a top view of the frame of the workbench of Figure 16, the anti-burglary system in the closed position;
- La figure 20 est une vue de dessus du châssis de l'établi de la figure 16 en cours de pliage ; - Figure 20 is a top view of the frame of the workbench of Figure 16 being folded;
- La figure 21 est une vue de deux modes de fixation des volets antieffraction aux cadres du châssis. La figure 1 est une vue en perspective d'un établi portable 2 en position montée selon un mode de réalisation de l'invention. L'établi 2 comprend un châssis 4 et un panneau principal 6 monté sur le châssis 4 pour former une surface de travail 8. Le panneau principal 6 comprend deux plaques rigides de travail 12 et 12' ainsi que des premiers éléments rigides structurels opposés avant 10 et arrière 10' qui sont fixés sous les deux plaques rigides de travail 12 et 12. Le châssis 4 pliable comprend des deuxième éléments opposés de gauche 14 et de droite 14' qui sont liés aux premiers éléments 10 et 10'. Les éléments avant 10 et arrière 10' liés aux éléments de gauche 14 et de droite 14' forment une ossature rigide supérieure 16 de l'établi 2 que l'on voit en traits interrompus. L'ossature rigide supérieure 16 de l'établi 2 s'étend le long du contour périphérique du panneau; elle peut s'étendre à distance de ce contour pour par exemple augmenter la surface de travail. La distance des éléments 10, 10', 14 et 14' de l'ossature sera préférentiellement de l'ordre de 30 à 40 mm des bords respectifs du panneau 6. Les premiers éléments 10 et 10' comprennent chacun des premier 18 et deuxième 18' sous-éléments qui sont fixés sous les première 12 et deuxième 12' plaques rigides, respectivement. Les premier 18 et deuxième 18' sous-éléments sont reliés au niveau de leurs extrémités intérieures respectives 20 et 20' par des axes de pivotement 22 et 22'. On peut voir l'axe de pivotement 22 à la figure 3 illustrant une vue de côté du panneau principal 6 démonté du châssis et semi-replié. Les axes de pivotement 22 et 22' sont arrangés de sorte à ce que les extrémités intérieures 20 et 20' des premier et deuxième sous-éléments 18 et 18' sont jointives en position montée du panneau sur le châssis. Les axes de pivotement 22 et 22' sont aussi arrangés de sorte à ce que les extrémités intérieures 20 et 20' sont aptes à pivoter vers le haut pour le pliage du panneau 6 en vue du démontage de l'établi. La direction "vers le haut" s'entend lorsque le panneau est monté sur le châssis. L'établi 2 peut comprendre des moyens d'accouplement 24 et 24' qui assurent la liaison de chacune des extrémités extérieures 25 et 25' des premiers éléments avant 10 et arrière 10' aux extrémités correspondantes des deuxièmes éléments de gauche 14 et de droite 14'. Les extrémités des deuxièmes éléments de gauche 14 et de droite 14' s'étendent préférentiellement sur moins de 20% de la longueur de ces éléments 14 et 14'. L'ossature est rigide, essentiellement en ce qu'elle est apte à résister à une masse posée sur la surface de travail. L'établi peut aussi comprendre des moyens de verrouillage principal 26 des axes de pivotement 22 et 22' de sorte à bloquer la possibilité de plier le panneau 6. On peut voir encore à la figure 3, le panneau 6 en position démontée du châssis 4 et en cours de pliage, position dans laquelle les premier et deuxième sous- éléments 18 et 18' portant les plaques rigides 12 et 12' se rabattent l'un contre l'autre. On peut observer les moyens d'accouplement 24 et 24' et les moyens de verrouillage 26 de l'établi. Un mode préféré de réalisation des axes de pivotement 22 et 22' est illustré aux figures 4 à 6. Un mode préféré de réalisation des moyens d'accouplement 24 et 24' est illustré aux figures 7 à 9 et enfin un mode préféré des moyens de verrouillage principal 26 est illustré aux figures 10 à 12. - Figure 21 is a view of two modes of attachment of burglar-proof shutters frame frames. Figure 1 is a perspective view of a portable workbench 2 in mounted position according to one embodiment of the invention. The workbench 2 comprises a chassis 4 and a main panel 6 mounted on the frame 4 to form a working surface 8. The main panel 6 comprises two rigid working plates 12 and 12 'as well as opposite rigid front structural elements 10' and rear 10 'which are fixed under the two rigid working plates 12 and 12. The foldable frame 4 comprises second opposing elements of left 14 and right 14 'which are connected to the first elements 10 and 10'. The front 10 and rear elements 10 'connected to the left-hand and right-hand elements 14' form an upper rigid frame 16 of the workbench 2 which is seen in phantom lines. The upper rigid frame 16 of the workbench 2 extends along the peripheral contour of the panel; it can extend away from this contour to for example increase the work surface. The distance of the elements 10, 10 ', 14 and 14' from the framework will preferably be of the order of 30 to 40 mm from the respective edges of the panel 6. The first elements 10 and 10 'each comprise first 18 and second 18 sub-elements which are fixed under the first 12 and second 12 'rigid plates, respectively. The first 18 and second 18 'sub-elements are connected at their respective inner ends 20 and 20' by pivot axes 22 and 22 '. One can see the pivot axis 22 in Figure 3 showing a side view of the main panel 6 removed from the frame and semi-folded. The pivot axes 22 and 22 'are arranged so that the inner ends 20 and 20' of the first and second sub-elements 18 and 18 'are contiguous in mounted position of the panel on the chassis. The pivot axes 22 and 22 'are also arranged so that the inner ends 20 and 20' are able to pivot upwards for the folding of the panel 6 for dismantling the workbench. The "upward" direction means when the panel is mounted on the chassis. The workbench 2 may comprise coupling means 24 and 24 'which ensure the connection of each of the outer ends 25 and 25' of the first front and rear elements 10 'to the corresponding ends of the second left and right 14 elements 14 . The ends of the second elements of left 14 and right 14 'preferentially extend less than 20% of the length of these elements 14 and 14'. The frame is rigid, essentially in that it is able to withstand a mass placed on the work surface. The established may also comprise main locking means 26 pivot axes 22 and 22 'so as to block the possibility of folding the panel 6. It can be seen again in Figure 3, the panel 6 in the disassembled position of the frame 4 and in progress folding, position in which the first and second sub-elements 18 and 18 'carrying the rigid plates 12 and 12' are folded against each other. The coupling means 24 and 24 'and the locking means 26 of the workbench can be observed. A preferred embodiment of the pivot axes 22 and 22 'is illustrated in Figures 4 to 6. A preferred embodiment of the coupling means 24 and 24' is illustrated in Figures 7 to 9 and finally a preferred embodiment of the means of main lock 26 is illustrated in Figures 10 to 12.
Le châssis pliable 4 qui est en position montée sur la figure 1 , est par ailleurs illustré en vue de dessus à la figure 2 et en position démontée et repliée. Le châssis 4 pliable comprend un cadre arrière 28 s'étendant, en position montée, verticalement le long de l'élément arrière 10' de l'ossature rigide 16 de l'établi 2. Le cadre arrière 28 présente à ses extrémités 29 et 29' dans la direction horizontale des axes de pivotement vertical 30 et 30', visibles sur la figure 2, qui eux-mêmes reçoivent des cadres latéraux 32 et 32'. Les deuxièmes éléments 14 et 14' de l'ossature supérieure rigide 16 forment les éléments supérieurs des cadres latéraux 32 et 32'. Les cadres latéraux 32 et 32' comprennent, à leur base, des roues orientables 34 d'un diamètre minimum de 100 mm pour le déplacement de l'établi. Le cadre arrière 28 du châssis 4 comprend des éléments horizontaux supérieur et inférieur 36 et 36' disposant d'une charnière de pivotement vertical central 38 et de moyens de verrouillage auxiliaires 40 de ces charnières. L'activation des moyens de verrouillages auxiliaires 40 des charnières de pivotement vertical central 38 permet de bloquer en position montée le cadre arrière 28. En position pliée du châssis 4 à la figure 2, les moyens de verrouillage 40 des charnières 38 sont libérés et le cadre arrière 28 se plie. Le cadre arrière 28 peut comprendre deux demi-cadres 42 et 42' de dimension identique et qui sont liés par les charnières de pivotement vertical 38. Les charnières 38 peuvent être arrangées pour que le pivotement des deux demi-cadres 42 et 42' de dimension identique puisse se faire vers l'intérieur de l'établi. En position pliée du châssis 4, les cadres latéraux 32 et 32' sont rabattus sur les deux demi-cadres 42 et 42' par pivotement autour des axes de pivotement vertical 30 et 30'. Le châssis 4 présente une forme en W au cours de son pliage. Le châssis 4 en forme plié peut présenter les mêmes dimensions générales que le panneau principal en forme pliée. The foldable frame 4 which is in the position mounted in Figure 1, is further illustrated in plan view in Figure 2 and in the disassembled and folded position. The foldable chassis 4 comprises a rear frame 28 extending, in mounted position, vertically along the rear element 10 'of the rigid frame 16 of the workbench 2. The rear frame 28 has at its ends 29 and 29 in the horizontal direction of the vertical pivot axes 30 and 30 ', visible in Figure 2, which themselves receive side frames 32 and 32'. The second elements 14 and 14 'of the rigid upper frame 16 form the upper elements of the side frames 32 and 32'. The side frames 32 and 32 'comprise, at their base, steerable wheels 34 with a minimum diameter of 100 mm for moving the workbench. The rear frame 28 of the frame 4 comprises upper and lower horizontal members 36 and 36 'having a central vertical pivoting hinge 38 and auxiliary locking means 40 of these hinges. The activation of the auxiliary locking means 40 of the central vertical pivot hinges 38 makes it possible to block the rear frame 28 in the mounted position. In the folded position of the frame 4 in FIG. 2, the locking means 40 of the hinges 38 are released and the rear frame 28 folds. The rear frame 28 may comprise two half-frames 42 and 42 'of identical size and which are connected by the vertical pivoting hinges 38. The hinges 38 may be arranged so that the pivoting of the two half-frames 42 and 42' of dimension identical can be done inward from the workbench. In the folded position of the frame 4, the side frames 32 and 32 'are folded over the two half-frames 42 and 42' by pivoting about the vertical pivot axes 30 and 30 '. The frame 4 has a W-shape during its folding. The bent shaped frame 4 may have the same overall dimensions as the folded main panel.
La figure 6 est une vue du panneau principal 6 de l'établi dans un mode de réalisation préféré, il est présenté démonté de l'établi. On peut y voir l'élément avant 10 parmi les premiers éléments opposés avant et arrière de l'ossature, un des axes de pivotement 22 liant les extrémités intérieures des premier et deuxième sous-éléments 18 et 18' ; on voit à la figure 6 également les moyens d'accouplement 24 et 24', des moyens de verrouillage 26 principal ainsi que les plaques rigides 12 et 12' fixées à l'élément avant 10 et formant la surface de travail 8. La figure 5 est une vue agrandie du panneau principal 6 au niveau d'un des axes de pivotement 22. Les premier et deuxième sous-éléments 18 et 18' sont des profilés métalliques qui comprennent des platines de montage 44 et 44' des axes de pivotement. Ces platines s'étendent verticalement et sont soudées sur chacune des faces verticales des premier et deuxième sous- éléments 18 et 18' au niveau des extrémités de ces sous-éléments. Ces platines comprennent une portion inférieure 45 et 45' en saillie des sous- éléments et munie d'un orifice 49 pour le logement de l'axe de pivotement 22. On peut particulièrement bien observer sur cette image que les extrémités intérieures 20 et 20' des premier et deuxième sous-éléments 18 et 18' son jointives au niveau de leurs bords de contact 46 et 46'. L' axe de pivotement 22 est à l'aplomb des bords de contact. La masse disposée sur la surface de travail du panneau force le pivotement de chacun des premier et deuxième sous-éléments 18 et 18' dans le sens de rapprochement des bords de contact 46 et 46'. Les sous-éléments 18 et 18' peuvent être des profilés de section carrée ou rectangulaire, et chacun des bords de contact 46 et 46' peut s'étendre le long de la section carrée ou rectangulaire. La section des profilés carrés est avantageusement d'une longueur de côté "s" comprise entre 25 mm et 60 mm. Les plaques rigides 12 et 12' peuvent être des planches de bois, par exemple en bois massif. Elles peuvent alternativement être des plaques de multiplex, OSB ou MDF et fixées au moyen de vis aux éléments avant et arrière de l'ossature. Les plaques rigides 12 et 12' sont avantageusement d'épaisseur "e" comprise entre 5 mm et 25 mm. Un jeu " j ", visible sur la figure 2, entre les plaques rigides 12 et 12' peut être réalisé à l'aplomb des bords de contact 46 et 46' des premier et deuxième sous-éléments 18 et 18' de sorte à ce que la liaison rigide, sous charge, soit réalisée entre les bords de contact 46 et 46' et non entre les bords intérieurs des plaques rigides ce qui, si tel n'était pas le cas, engendrerait un hyper statisme. Un tel jeu peut être avantageusement de quelques dixièmes de millimètre. Chacun des bords de contact 46 et 46' des extrémités intérieures 20 et 20' comprennent des chanfreins 47 et 47' réalisés sur les portions horizontales inférieures de ces bords de sorte à former des logements en V pour l'axe de pivotement 22. Dans un mode préféré de réalisation, l'axe de pivotement 22 est à niveau, dans la direction verticale, des côtés inférieurs 48 et 48' des premier et deuxième sous-éléments 18 et 18'. Cette mesure est favorable pour l'encombrement au pliage en ce que les sous- éléments, une fois repliés, viennent en contact l'un avec l'autre sur toute leur longueur. La figure 4 est une vue en coupe horizontale IV-IV au niveau de l'axe de pivotement 22. L'axe de pivotement 22 est un goujon arrêté à une extrémité aux platines de montage par un épaulement et fixé à une extrémité opposée par un écrou aux platines de montage opposées. Figure 6 is a view of the main panel 6 of the workbench in a preferred embodiment, it is shown removed from the workbench. The front element 10 can be seen among the first opposed front and rear elements of the framework, one of the pivot axes 22 linking the inner ends of the first and second sub-elements 18 and 18 '; FIG. 6 also shows the coupling means 24 and 24 ', the main locking means 26 as well as the rigid plates 12 and 12' fixed to the front element 10 and forming the working surface 8. FIG. is an enlarged view of the main panel 6 at one of the pivot axes 22. The first and second sub-elements 18 and 18 'are metal profiles which comprise mounting plates 44 and 44' of the pivot axes. These plates extend vertically and are welded to each of the vertical faces of the first and second sub-elements 18 and 18 'at the ends of these sub-elements. These plates comprise a lower portion 45 and 45 'projecting from the sub-elements and provided with an orifice 49 for accommodating the pivot axis 22. It can be particularly well observed in this image that the inner ends 20 and 20' first and second sub-elements 18 and 18 'are joined at their contact edges 46 and 46'. The pivot axis 22 is plumb with the contact edges. The mass disposed on the working surface of the panel forces the pivoting of each of the first and second sub-elements 18 and 18 'in the direction of approach of the contact edges 46 and 46'. The sub-elements 18 and 18 'may be square or rectangular sections, and each of the contact edges 46 and 46' may extend along the square or rectangular section. The section of the square sections is advantageously of a side length "s" of between 25 mm and 60 mm. The rigid plates 12 and 12 'may be wooden boards, for example solid wood. They can alternatively be multiplex plates, OSB or MDF and secured by screws to the front and back elements of the frame. The rigid plates 12 and 12 'are advantageously of thickness "e" of between 5 mm and 25 mm. A clearance "j", visible in FIG. 2, between the rigid plates 12 and 12 'can be made directly above the contact edges 46 and 46' of the first and second sub-elements 18 and 18 'so that that the rigid connection, under load, is performed between the contact edges 46 and 46 'and not between the inner edges of the rigid plates which, if this were not the case, would generate a hyper droop. Such a game can be advantageously a few tenths of a millimeter. Each of the contact edges 46 and 46 'of the inner ends 20 and 20' comprise chamfers 47 and 47 'made on the lower horizontal portions of these edges so as to form V-shaped housings for the pivot axis 22. In a In a preferred embodiment, the pivot axis 22 is level, in the vertical direction, with the lower sides 48 and 48 'of the first and second sub-elements 18 and 18'. This measure is favorable for the folding dimensions in that the sub-elements, once folded, come into contact with each other over their entire length. Fig. 4 is a horizontal sectional view IV-IV at the pivot axis 22. The pivot axis 22 is a stud stopped at one end at the mounting plates by a shoulder and fixed at an opposite end by a nut to opposite mounting plates.
La figure 7 est une vue en perspective de l'établi portable 2 dans un mode alternatif de réalisation. L'établi comprend un panneau principal 6 ainsi qu'un panneau secondaire de stockage 6' de matériel. Le panneau de stockage 6' est de construction identique à celle du panneau principal 6. La dimension du panneau 6' peut cependant différer de celle du panneau principal pour son arrangement dans les limites géométriques intérieures du châssis. Le panneau secondaire 6' est monté sur le châssis pliable 4 pour former une surface de stockage 8' en dessous de la surface de travail 8. Les cadres latéraux 32 et 32' du châssis pliable 4 comprennent des éléments inférieurs 50 et 50' horizontaux en vis-à-vis des deuxièmes éléments opposés de gauche et de droite 14 et 14'. Le panneau de stockage 6' est lié à ces éléments inférieurs horizontaux 50 et 50'. Les cadres latéraux comprennent enfin des éléments avant verticaux 52 et 52' ainsi que des éléments arrière verticaux 54 et 54' qui relient les extrémités correspondantes des éléments horizontaux supérieurs 14 et 14' et horizontaux inférieurs 50 et 50'.Figure 7 is a perspective view of the portable workbench 2 in an alternative embodiment. The workbench includes a main panel 6 and a secondary storage panel 6 'of material. The storage panel 6 'is of identical construction to that of the main panel 6. The dimension of the panel 6' may, however, differ from that of the main panel for its arrangement within the interior geometric limits of the frame. The secondary panel 6 'is mounted on the foldable frame 4 to form a storage surface 8' below the working surface 8. The side frames 32 and 32 'of the foldable frame 4 comprise horizontal lower elements 50 and 50'. opposite the second opposing elements of left and right 14 and 14 '. The storage panel 6 'is connected to these horizontal lower elements 50 and 50'. The lateral frames finally comprise vertical front elements 52 and 52 'and vertical rear members 54 and 54' which connect the corresponding ends of the upper horizontal members 14 and 14 'and the lower horizontal members 50 and 50'.
Les cadres latéraux 32 et 32' peuvent être des assemblages mécano-soudés d'éléments tubulaires. Ces derniers peuvent avoir une section comprise entre 20 mm et 40 mm. L'établi présente de préférence des roues orientables 34 à l'aplomb de chacun des éléments verticaux avant 52 et 52' et arrière 54 et 54'. Ces roues 34 peuvent être munies de frein. On peut observer que les cadres latéraux 32 et 32' présentent des éléments horizontaux intermédiaires 56 et 56' à distance des éléments horizontaux inférieur et supérieur. Alternativement, le panneau de stockage 6' peut être lié à chacun de ces éléments horizontaux. Encore alternativement, l'établi peut comprendre un deuxième panneau secondaire de stockage, le premier pouvant être lié aux éléments inférieurs 50 et 50' du cadre, le deuxième pouvant être lié aux éléments intermédiaires 56 et 56' des cadres latéraux 32 et 32'. Le panneau secondaire 6' de l'établi 2, en sus du panneau principal 6, permet le rangement de matériel ce qui rend l'établi multifonctionnel. L'établi 2 pliable muni de roues 34 est ainsi mobile et peut par exemple servir de servante. Par ailleurs, les première et deuxième plaques rigides du panneau secondaire de stockage 6' peuvent être de longueur comprise entre 400 mm et 1000 mm ce qui offre une grande surface de stockage. Les figures 8 et 9 sont des sections horizontale VIII-VIII et verticale IX-IX longitudinale de l'élément 10 du panneau principal 6 au niveau des moyens d'accouplement 24 et 24' avec le châssis 4. Les moyens d'accouplement 24 et 24' peuvent avantageusement être des moyens à libération rapide pour faciliter le retrait du panneau amovible. Ces derniers prévoient un accouplement, entre le panneau principal 6 et le châssis 4, réalisé par positionnement des deuxièmes éléments de gauche et de droite 14 et 14' de l'ossature supérieure entre des logements arrondis 58' et des pattes d'accouplement 60' qui sont réalisés aux extrémités extérieures 62 et 62' des éléments d'ossature avant et arrière 10 et 10'. Les éléments 14 et 14' peuvent être maintenus avec du jeu entre les logements 28' et les pattes 60'. Dans un mode préféré de réalisation, les éléments 14 et 14' sont maintenus avec un serrage dans les moyens d'accouplement 24 et 24', les logements 58' et les pattes 60' frottant sur les éléments 14 et 14' lors de l'activation de l'accouplement. Les logements arrondis 58' peuvent être réalisés dans des sabots en aluminium fixés dans les profilés carrés d'ossature avant et arrière 10 et 10'. Les pattes d'accouplement 60' peuvent être fixées à des bras 64' apte à coulisser dans les profilés 10 et 10', préférentiellement monté sur ressort 66', et pouvant comprendre un doigt d'activation 68' passant dans une lumière 70' réalisée sur les profilés d'ossature. Les doigts d'activation 68' sont avantageusement orientés vers l'intérieur de l'établi. Les bras 64' peuvent être arrêtés, par exemple par des vis 72' (ou bien des vis CHC venant se loger dans le profilél O - non montré) pour sécuriser l'accouplement. The side frames 32 and 32 'may be mechanically welded assemblies of tubular elements. These may have a section of between 20 mm and 40 mm. The workbench preferably has steerable wheels 34 plumb with each of the front vertical members 52 and 52 'and rear 54 and 54'. These wheels 34 may be provided with brake. It can be seen that the side frames 32 and 32 'have intermediate horizontal elements 56 and 56' away from the horizontal lower and upper elements. Alternatively, the storage panel 6 'can be linked to each of these horizontal elements. Still alternatively, the workbench may comprise a second secondary storage panel, the first being connectable to the lower elements 50 and 50 'of the frame, the second being connectable to the intermediate elements 56 and 56' of the side frames 32 and 32 '. The secondary panel 6 'of the workbench 2, in addition to the main panel 6, allows the storage of material which makes the workbench multifunctional. The foldable workbench 2 provided with wheels 34 is thus mobile and may for example serve as a servant. Furthermore, the first and second rigid plates of the secondary storage panel 6 'can be of length between 400 mm and 1000 mm which offers a large storage area. Figures 8 and 9 are longitudinal horizontal sections VIII-VIII and vertical IX-IX of the element 10 of the main panel 6 at the coupling means 24 and 24 'with the frame 4. The coupling means 24 and 24 'can advantageously be quick release means to facilitate removal of the removable panel. The latter provide a coupling, between the main panel 6 and the frame 4, made by positioning the second left and right elements 14 and 14 'of the upper frame between rounded housing 58' and coupling lugs 60 ' which are made at the outer ends 62 and 62 'of the front and rear frame members 10 and 10'. The elements 14 and 14 'can be held with clearance between the housing 28' and the tabs 60 '. In a preferred embodiment, the elements 14 and 14 'are maintained with a clamping in the coupling means 24 and 24 ', the housing 58' and the tabs 60 'rubbing on the elements 14 and 14' during the activation of the coupling. The rounded housing 58 'can be made in aluminum shoes fixed in the square sections of front and rear frame 10 and 10'. The coupling lugs 60 'may be attached to arms 64' able to slide in the profiles 10 and 10 ', preferably spring-mounted 66', and may comprise an activation finger 68 'passing through a light 70' made on the frame profiles. The activation fingers 68 'are advantageously oriented towards the inside of the workbench. The arms 64 'can be stopped, for example by screws 72' (or CHC screws which are housed in the profilel O - not shown) to secure the coupling.
La figure 12 est une vue de dessus du panneau principal 6 de l'établi 2. On peut voir les plaques rigides 12 et 12' fixées au moyen de vis 74 aux éléments avant et arrière 10 et 10' de l'ossature de l'établi. En l'occurrence, les vis 74 sont à tête fraisée pour éviter le dépassement au-dessus de la surface du panneau 6 de l'établi, et sont engagées dans des écrous comprenant des bagues en nylon pour éviter un desserrage intempestif. Les deux plaques rigides de travail 12 et 12' s'étendent en l'occurrence sur 100% de l'étendue du panneau 6. Alternativement, elles peuvent s'étendre sur une portion de cette étendue, par exemple une portion comprise entre 50% et 100%, une plaque supplémentaire pouvant venir se rapporter aux éléments avant et arrière 10 et 10' de l'ossature, par exemple entre les plaques 12 et 12'. La figure 1 1 est une section verticale longitudinale XI-XI de l'élément avant 10 de l'ossature au niveau des moyens de verrouillage principal 26 des axes de pivotement 22 qui sont en l'occurrence activés. Les moyens de verrouillage principal 26 comprennent un pêne 76 apte à s'engager à cheval sur les extrémités intérieures des premier et deuxième sous-éléments 18 et 18'. Le pêne 76 est logé dans un passage 78 (visible aussi sur la section transversale a-a' de la figure 1 1 ) délimité par la paroi supérieure horizontale du profilé et des nervures s'étendant sur les parois verticales du profilé. La figure 10 est une section horizontale X-X de l'élément 10 du panneau principal 6 au niveau des moyens de verrouillage principal 26. Les moyens de verrouillage principal 26 comprennent, en outre, un doigt d'activation 80 passant dans une lumière 82 réalisée sur le profilé. Les doigts d'activation 80 sont avantageusement orientés vers l'intérieur de l'établi. Le pêne 76 peut être arrêté pour sécuriser le verrouillage, par exemple au moyen d'une vis 85 (de préférence CHC). La figure 13 est une vue en perspective du châssis 4. Les moyens de verrouillage auxiliaires 40 de l'axe central arrière de pivotement 84 des deux demi-cadres arrière 42 et 42' sont illustrés en position activées c'est-à-dire que les demi-cadres arrière sont bloqués en position de montage. Les demi-cadres arrière 42 et 42' comprennent des éléments extérieurs verticaux 86 et 86' portant les axes de pivotement 30 et 30' des cadres latéraux 32 et 32' ; ils comprennent aussi des éléments intérieurs verticaux de renfort 88 et 88' à distance desdits éléments extérieurs verticaux 86 et 86'. Les éléments intérieurs verticaux 88 et 88' sont en l'occurrence situés dans les moitiés des demi-cadres 42 et 42' opposées aux moitiés comprenant lesdits éléments extérieurs verticaux 86 et 86'. La figure 14 est une section horizontale des moyens de verrouillage auxiliaire 40 de l'axe central arrière de pivotement 84. Les moyens de verrouillage 40 comprennent un tube 90 apte à s'engager avec deux orifices 92 et 92' réalisés aux bouts des éléments arrières horizontaux pivotant des demi-cadres 42 et 42', respectivement. Cet engagement permet de bloquer le pivotement des demi-cadres. Le tube 90 peut comprendre un fond plein et peut être monté sur ressort en appui sur ledit fond. Le tube 90 peut comprendre un doigt de manipulation 94 s'étendant dans une lumière 96 d'un des éléments horizontaux. Les doigts d'activation 94 sont avantageusement orientés vers l'intérieur de l'établi. La figure 15 est une section verticale du châssis 4 au niveau d'un des axes de pivotement 30' du cadre latéral 32'. Les axes de pivotement 30 et 30' sont réalisés par des goujons 98' construits aux extrémités supérieure et inférieure des éléments extérieurs verticaux 86 et 86' des cadres latéraux 32 et 32'. Les goujons 98' sont en l'occurrence engagés dans des inserts 100' logés dans les tubes horizontaux supérieur et inférieur des demi- cadres 42 et 42'. Des équerres 102 fixées sur les éléments arrière verticaux 54 et 54' des cadres latéraux 32 et 32' comprennent des orifices pour le passage des goujons 98 via préférentiellement une entretoise 104'. Une rondelle 106' peut être réalisée entre la tête du goujon et l'entretoise 104'. Figure 12 is a top view of the main panel 6 of the workbench 2. It can be seen the rigid plates 12 and 12 'fixed by means of screws 74 to the front and rear elements 10 and 10' of the frame of the established. In this case, the screws 74 are countersunk to prevent protrusion above the surface of the panel 6 of the workbench, and are engaged in nuts comprising nylon rings to prevent inadvertent loosening. The two rigid working plates 12 and 12 'extend in this case over 100% of the extent of the panel 6. Alternatively, they may extend over a portion of this extent, for example a portion of between 50% and 100%, an additional plate that can come to relate to the front and rear elements 10 and 10 'of the frame, for example between the plates 12 and 12'. FIG. 11 is a longitudinal vertical section XI-XI of the front element 10 of the framework at the level of the main locking means 26 of the pivot axes 22 which are in this case activated. The main locking means 26 comprise a bolt 76 adapted to straddle the inner ends of the first and second sub-elements 18 and 18 '. The bolt 76 is housed in a passage 78 (also visible on the cross section aa 'of Figure 1 1) delimited by the horizontal upper wall of the profile and ribs extending on the vertical walls of the profile. FIG. 10 is a horizontal section XX of the element 10 of the main panel 6 at the level of the main locking means 26. The main locking means 26 further comprise an activation finger 80 passing through a light 82 made on the profile. The activation fingers 80 are advantageously oriented towards the inside of the workbench. The bolt 76 can be stopped to secure the locking, for example by means of a screw 85 (preferably CHC). FIG. 13 is a perspective view of the frame 4. The auxiliary locking means 40 of the rear pivoting central axis 84 of the two rear half-frames 42 and 42 'are illustrated in the activated position, that is to say that the rear half-frames are locked in the mounting position. The rear half-frames 42 and 42 'comprise vertical outer members 86 and 86' bearing the pivot axes 30 and 30 'of the side frames 32 and 32'; they also comprise vertical inner reinforcing elements 88 and 88 'remote from said vertical outer members 86 and 86'. The vertical inner members 88 and 88 'are in fact located in the halves of the half-frames 42 and 42' opposite the halves comprising said vertical outer members 86 and 86 '. FIG. 14 is a horizontal section of the auxiliary locking means 40 of the rear pivoting central axis 84. The locking means 40 comprise a tube 90 adapted to engage with two orifices 92 and 92 'made at the ends of the rear elements. horizontally pivoting half-frames 42 and 42 ', respectively. This commitment makes it possible to block the pivoting of the half-frames. The tube 90 may comprise a solid bottom and may be spring-mounted bearing on said bottom. The tube 90 may comprise a handling finger 94 extending in a slot 96 of one of the horizontal elements. The activation fingers 94 are advantageously oriented towards the inside of the workbench. Figure 15 is a vertical section of the frame 4 at one of the pivot axes 30 'of the side frame 32'. The pivot axes 30 and 30 'are formed by studs 98' constructed at the upper and lower ends of the vertical outer members 86 and 86 'of the side frames 32 and 32'. The studs 98 'are in this case engaged in inserts 100' housed in the upper and lower horizontal tubes of the half frames 42 and 42 '. Brackets 102 attached to the vertical rear members 54 and 54 'of the side frames 32 and 32' include orifices for the passage studs 98 preferably via a spacer 104 '. A washer 106 'can be made between the head of the stud and the spacer 104'.
La figure 16 est une vue d'un établi 2 selon un autre mode de réalisation comprenant, en outre, un système anti-effraction 108 de l'établi. Le panneau 6 de travail et le panneau 6' de rangement de matériel sont montés sur l'établi comme présenté en relation avec la figure 7. Le système antieffraction comprend des volets latéraux 1 10 et 1 10' qui s'étendent sur les cadres latéraux 32 et 32' et des volets arrière 1 12 et 1 12' qui s'étendent sur le cadre arrière 28. Le système anti-effraction 108 comprend aussi des ouvrants 1 14 et 1 14' montés pivotant le long des éléments avant 52 et 52' des cadres latéraux 32 et 32'. Les volets peuvent être des parois pleines, par exemple métalliques ou bien des grillages. La figure 18 est une vue des ouvrants 1 14 et 1 14' démontés des cadres latéraux 32 et 32' du châssis pliable. L'ouvrant 1 14' de droite est lié au volet latéral 1 10' par une charnière verticale 1 16', l'ouvrant de gauche 1 14 est lié au volet latéral 1 10 par une charnière verticale 1 16. Les bords intérieurs 120 et 120' des ouvrants 1 14 et 1 14' sont aptes à s'engager l'un avec l'autre, l'un des bords comprenant un orifice 122 apte à recevoir un pontet 124 réalisé sur l'autre des bords en vue de fermer l'accès à l'intérieur de l'établi par exemple au moyen d'un cadenas appliqué sur le pontet. La figure 17 est une vue des volets arrière démontés du châssis pliable. Les volets arrière 1 12 et 1 12' sont liés ensemble par une charnière verticale 1 18. Il est à noter que l'orientation vers l'intérieur des doigts d'activation 68', 80 et 94 présentés en relation avec les figures 8, 10 et 14, respectivement, ne sont pas accessibles de l'extérieur de l'établi une fois que les volets et les ouvrants sont fixés sur le châssis : Ce mode de réalisation évite toute tentative intrusive de démontage de l'établi. Figure 16 is a view of a workbench 2 according to another embodiment further comprising an anti-burglar system 108 of the workbench. The work panel 6 and the material storage panel 6 'are mounted on the workbench as shown in connection with FIG. 7. The anti-burglar system comprises side flaps 110 and 110 which extend on the side frames. 32 and 32 'and rear flaps 1 12 and 1 12' which extend on the rear frame 28. The burglar-proof system 108 also comprises openings 1 14 and 1 14 'pivotally mounted along the front elements 52 and 52 'side frames 32 and 32'. The shutters can be solid walls, for example metal or fences. Figure 18 is a view of the openings 14 and 14 'removed from the side frames 32 and 32' of the foldable frame. The opening 1 14 'of the right is connected to the side flap 1 10' by a vertical hinge 1 16 ', the left opening 1 14 is connected to the side flap 1 10 by a vertical hinge 1 16. The inner edges 120 and 120 'of the openings 1 14 and 1 14' are adapted to engage with each other, one of the edges comprising an orifice 122 adapted to receive a bridge 124 made on the other edges to close access to the interior of the workbench for example by means of a padlock applied to the bridge. Figure 17 is a view of the disassembled rear flaps of the foldable frame. The rear flaps 1 12 and 1 12 'are connected together by a vertical hinge 1 18. It should be noted that the inward orientation of the activation fingers 68', 80 and 94 presented in connection with FIGS. 10 and 14, respectively, are not accessible from outside the workbench once the flaps and the opening are fixed on the frame: This embodiment avoids any intrusive attempt to dismantle the workbench.
La figure 19 est une vue de dessus du châssis 4 de l'établi 2 et équipé du système antieffraction 108 en position fermée. On peut observer le système anti-effraction qui comprend les ouvrants avant 1 14 et 1 14', les charnières verticales avant 1 16 et 1 16', la charnière arrière 1 18, les volets latéraux 1 10 et 1 10', et les volets arrière 1 12 et 1 12' ainsi que le pontet 124. Les ouvrants 1 14 et 1 14' sont fermés et empêchent l'accès à l'intérieur de l'établi. Les passages entre le cadre arrière 28 et chacun des cadres latéraux 32 et 32' n'étant pas recouvert de volet anti-effraction, ils sont réalisés avec une largeur inférieure à 25 mm, préférentiel lement inférieure à 15 mm. La figure 21 illustre deux modes alternatifs de réalisation de fixation des volets sur les cadres, le premier mode par goujon 125 à écrou, le deuxième mode par rivet 126. La figure 20 est une vue du châssis 4 équipé des volets et des ouvrants et en position semi-repliée, montrant la configuration intermédiaire en W du châssis au cours du pliage. Les ouvrants 1 14 et 1 14' peuvent se rabattre contre les volets 1 10 et 1 10' grâce aux charnières verticales 1 16 et 1 16', respectivement. Figure 19 is a top view of the frame 4 of the workbench 2 and equipped with the anti-theft system 108 in the closed position. The burglar-resistant system can be seen which includes the front doors 14 and 14 ', the front vertical hinges 16 and 16', the rear hinge 118, the side flaps 110 and 110 ', and the shutters. rear 1 12 and 1 12 'and the trigger guard 124. The openings 1 14 and 1 14 'are closed and prevent access to the interior of the workbench. The passages between the rear frame 28 and each of the side frames 32 and 32 'are not covered with an anti-burglar flap, they are made with a width less than 25 mm, preferably less than 15 mm. FIG. 21 illustrates two alternative embodiments of fastening the flaps on the frames, the first mode by bolt 125 to nut, the second mode by rivet 126. FIG. 20 is a view of the chassis 4 equipped with shutters and openings and semi-folded position, showing the intermediate configuration in W of the frame during folding. The openings 1 14 and 1 14 'can be folded against the flaps 1 10 and 1 10' through the vertical hinges 1 16 and 1 16 ', respectively.

Claims

Revendications claims
Etabli (2) portable comprenant : Workbench (2) including:
un châssis pliable (4) ; et  a foldable frame (4); and
un panneau principal (6), formant surface de travail, monté de manière amovible sur ledit châssis (4) ;  a main panel (6), forming a work surface, removably mounted on said frame (4);
caractérisé en ce que l'établi (2) en position montée présente une ossature (16) supérieure rigide de forme carrée ou rectangulaire ; characterized in that the workbench (2) in the mounted position has a rigid upper frame (16) of square or rectangular shape;
le panneau (6) comprenant des premiers éléments opposés avant (10) et arrière (10') de ladite ossature (16) et le châssis (4) comprenant des deuxièmes éléments opposés de gauche (14) et de droite (14') de ladite ossature (16), liés auxdits premiers éléments (10, 10') ; et en ce que ledit panneau principal (6) comprend une première (12) et une deuxième (12') plaque rigide de travail, lesdits premiers éléments (10, 10') comprenant chacun un premier (18) et un deuxième (18') sous-élément fixés sous lesdites première (12) et deuxième (12') plaques de travail, respectivement; ledit panneau principal (6) comprenant, en outre, des axes de pivotement (22, 22') reliant les extrémités intérieures (20, 20') de chacun des premier (18) et deuxième (18') sous-éléments, lesdits axes (22, 22') étant arrangés de sorte à ce que lesdites extrémités intérieures (20, 20') sont jointives en position montée de l'établi (2) et sont aptes à pivoter vers le haut pour le pliage du panneau (6) en vue du démontage de l'établi (2). the panel (6) comprising opposite first elements (10) and rear (10 ') of said framework (16) and the frame (4) comprising second opposing elements of left (14) and right (14') of said framework (16), connected to said first elements (10, 10 '); and in that said main panel (6) comprises a first (12) and a second (12 ') rigid working plate, said first elements (10, 10') each comprising a first (18) and a second (18 ') sub-element fixed under said first (12) and second (12 ') work plates, respectively; said main panel (6) further comprising pivot axes (22, 22 ') connecting the inner ends (20, 20') of each of the first (18) and second (18 ') sub-elements, said axes (22, 22 ') being arranged so that said inner ends (20, 20') are contiguous in the mounted position of the workbench (2) and are able to pivot upwards for the folding of the panel (6) for dismantling the workbench (2).
Etabli (2) portable selon la revendication 1 , caractérisé en ce que les premier (18) et deuxième (18') sous-éléments comprennent des bords intérieurs de contact (46, 46'), les extrémités intérieures (20, 20') de chacun des premier et deuxième sous-éléments (18, 18') étant jointives au niveau desdits bords intérieurs (46, 46') de contact en position montée de l'établi. Portable workbench (2) according to claim 1, characterized in that the first (18) and second (18 ') sub-elements comprise inner contact edges (46, 46'), the inner ends (20, 20 ') each of the first and second sub-elements (18, 18 ') being contiguous at said inner edges (46, 46') of contact in the mounted position of the workbench.
Etabli (2) portable selon l'une des revendications 1 et 2, caractérisé en ce qu'il comprend des moyens d'accouplement (24, 24') qui assurent la liaison de chacune des extrémités extérieures (25, 25') des premiers éléments (10, 10') aux extrémités correspondantes des deuxièmes éléments (14, 14'). Workbench (2) according to one of claims 1 and 2, characterized in that it comprises coupling means (24, 24 ') which provide the connection of each of the outer ends (25, 25') of the first elements (10, 10 ') at the corresponding ends of the second elements (14, 14').
Etabli (2) portable selon l'une des revendications 1 à 3, caractérisé en ce qu'il comprend des moyens de verrouillage (26) principal d'au moins un des deux axes de pivotement (22, 22'), préférentiellement de chacun des deux axes (22, 22') de pivotement. Workbench (2) according to one of claims 1 to 3, characterized in that it comprises means (26) for locking at least one of the two pivot axes (22, 22 '), preferably each two axes (22, 22 ') of pivoting.
Etabli (2) portable selon l'une des revendications 1 à 4, caractérisé en ce que le châssis (4) pliable comprend en position montée de l'établi, un cadre arrière (28) s'étendant verticalement le long de l'élément arrière (10') de l'ossature (16) et présentant à chacune de ses extrémités horizontales (29, 29') un axe de pivotement vertical (30, 30') recevant un cadre latéral (32, 32'), les deuxièmes éléments (14, 14') de l'ossature supérieure (16) formant les éléments supérieurs desdits cadres latéraux (32, 32'). Portable workbench (2) according to one of claims 1 to 4, characterized in that the foldable frame (4) comprises in the mounted position of the workbench, a rear frame (28) extending vertically along the element rear (10 ') of the framework (16) and having at each of its horizontal ends (29, 29') a vertical pivot axis (30, 30 ') receiving a lateral frame (32, 32'), the second elements (14, 14 ') of the upper framework (16) forming the upper elements of said side frames (32, 32').
Etabli (2) selon la revendication 5, caractérisé en ce que le cadre arrière (28) du châssis (4) comprend deux demi-cadres (42, 42') et un axe central (84) vertical de pivotement desdits demi-cadres (42, 42'), ledit cadre arrière (28) comprenant, préférentiellement en outre, des moyens (40) de verrouillage auxiliaires dudit axe central vertical (84). Workbench (2) according to claim 5, characterized in that the rear frame (28) of the frame (4) comprises two half-frames (42, 42 ') and a central axis (84) of vertical pivoting said half-frames ( 42, 42 '), said rear frame (28) further including, preferably, auxiliary locking means (40) of said vertical central axis (84).
Etabli (2) selon la revendication 6, caractérisé en ce que le cadre arrière (28) du châssis pliable (4) comprend des éléments horizontaux supérieur (36) et inférieur (36'), l'axe central vertical de pivotement (84) étant formé par une charnière arrière centrale verticale (38) sur chacun desdits éléments horizontaux supérieur (36) et inférieur (36'). Workbench (2) according to claim 6, characterized in that the rear frame (28) of the folding frame (4) comprises upper (36) and lower (36 ') horizontal elements, the vertical pivoting central axis (84). being formed by a vertical central rear hinge (38) on each of said upper (36) and lower (36 ') horizontal members.
Etabli (2) selon la revendication 6 ou 7, caractérisé en ce que l'axe central vertical (84) de pivotement des demi-cadres arrières (42, 42') est arrangé pour un pivotement desdits deux demi-cadres (42, 42') vers l'intérieur de l'établi (2). Workbench (2) according to claim 6 or 7, characterized in that the vertical pivot axis (84) of the rear half-frames (42, 42 ') is arranged for pivoting of said two half-frames (42, 42 ') towards the inside of the workbench (2).
Etabli (2) selon l'une des revendications 5 à 8, caractérisé en ce qu'il comprend, en outre, un système anti-effraction (108) comprenant des volets (1 10, 1 10', 1 12, 1 12') fixes s'étendant le long d'au moins un des cadres latéraux (32, 32') et/ou du cadre arrière (28), préférentiellement le long de chacun desdits cadres latéraux et arrière, et des ouvrants (1 14, 1 14') montés pivotant le long d'éléments avant verticaux (52, 52') des cadres latéraux (32, 32'). 10. Etabli (2) selon l'une des revendications 1 à 9, caractérisé en ce que le châssis (4) en configuration pliée présente sensiblement les mêmes longueur et largeur que le panneau principal (6) en forme pliée. Workbench (2) according to one of claims 5 to 8, characterized in that it further comprises an anti-intrusion system (108) comprising flaps (1 10, 1 10 ', 1 12, 1 12' ) extending along at least one of the side frames (32, 32 ') and / or the rear frame (28), preferably along each of said side and rear frames, and sashes (1 14, 1 14') pivotally mounted along vertical front members ( 52, 52 ') of the side frames (32, 32'). 10. Workbench (2) according to one of claims 1 to 9, characterized in that the frame (4) in folded configuration has substantially the same length and width as the main panel (6) folded form.
1 1 . Etabli (2) selon l'une des revendications 1 à 10, caractérisé en ce qu'il comprend en outre, un panneau secondaire (6') du type de celui du panneau principal (6) et destiné à être monté sur le châssis pliable pour former une surface de stockage (8') située en dessous de la surface de travail (8). 1 1. Workbench (2) according to one of claims 1 to 10, characterized in that it further comprises a secondary panel (6 ') of the type of the main panel (6) and intended to be mounted on the foldable frame to form a storage surface (8 ') located below the working surface (8).
PCT/EP2017/072555 2016-09-12 2017-09-08 Portable building-site workbench WO2018046645A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17762141.4A EP3509798B1 (en) 2016-09-12 2017-09-08 Portable building-site workbench

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1658470 2016-09-12
FR1658470A FR3055824B1 (en) 2016-09-12 2016-09-12 PORTABLE WORKSHOP

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Publication number Priority date Publication date Assignee Title
IT202200002225A1 (en) * 2022-02-08 2023-08-08 Ff Di Falconi V & C S N C WORKSTATION

Citations (5)

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Publication number Priority date Publication date Assignee Title
WO1995020892A1 (en) * 1994-02-04 1995-08-10 Carter Mark C Collapsible display table
US5452908A (en) 1994-04-25 1995-09-26 Bencic; Mirko Collapsible work stowage cart
US6182724B1 (en) 1999-09-07 2001-02-06 Gin Cherng Chou Foldable working bench
US20120217727A1 (en) 2011-02-25 2012-08-30 P & F Brother Industrial Corporation Wheeled Collapsible Stand for a Power Driven Machine
DE202012103666U1 (en) * 2012-09-25 2013-01-04 Michael Schmitz Collapsible assembly table

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995020892A1 (en) * 1994-02-04 1995-08-10 Carter Mark C Collapsible display table
US5452908A (en) 1994-04-25 1995-09-26 Bencic; Mirko Collapsible work stowage cart
US6182724B1 (en) 1999-09-07 2001-02-06 Gin Cherng Chou Foldable working bench
US20120217727A1 (en) 2011-02-25 2012-08-30 P & F Brother Industrial Corporation Wheeled Collapsible Stand for a Power Driven Machine
DE202012103666U1 (en) * 2012-09-25 2013-01-04 Michael Schmitz Collapsible assembly table

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200002225A1 (en) * 2022-02-08 2023-08-08 Ff Di Falconi V & C S N C WORKSTATION

Also Published As

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FR3055824A1 (en) 2018-03-16
FR3055824B1 (en) 2018-09-28
EP3509798B1 (en) 2020-06-17
EP3509798A1 (en) 2019-07-17

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