EP0680708A2 - Vorrichtung für Höhenverstellung einer neigbaren Arbeitsplatte - Google Patents

Vorrichtung für Höhenverstellung einer neigbaren Arbeitsplatte Download PDF

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Publication number
EP0680708A2
EP0680708A2 EP95460016A EP95460016A EP0680708A2 EP 0680708 A2 EP0680708 A2 EP 0680708A2 EP 95460016 A EP95460016 A EP 95460016A EP 95460016 A EP95460016 A EP 95460016A EP 0680708 A2 EP0680708 A2 EP 0680708A2
Authority
EP
European Patent Office
Prior art keywords
feet
support
work surface
foot
supports
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP95460016A
Other languages
English (en)
French (fr)
Other versions
EP0680708A3 (de
Inventor
Gérard Michel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BRETAGNE CONCEPT SARL
Original Assignee
BRETAGNE CONCEPT SARL
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
Priority claimed from FR9404414A external-priority patent/FR2718333A1/fr
Application filed by BRETAGNE CONCEPT SARL filed Critical BRETAGNE CONCEPT SARL
Publication of EP0680708A2 publication Critical patent/EP0680708A2/de
Publication of EP0680708A3 publication Critical patent/EP0680708A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B41/00—School desks or tables
    • A47B41/02—Adjustable, inclinable, sliding or foldable desks tops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B17/00—Writing-tables
    • A47B17/02—Writing-tables with vertically-adjustable parts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B3/00—Folding or stowable tables
    • A47B3/02—Folding or stowable tables with foldable cross legs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/004—Top adjustment
    • A47B2200/0043—Inclination adjustable work top

Definitions

  • the present invention relates to a device consisting of a work surface mounted on two supports and which can be tilted.
  • the device of the invention can be applied as a table for school, office or business production.
  • a device according to the invention is of the type where each support comprises two feet articulated relative to each other at a point of their length.
  • This type of table has the advantage of being able to be adjusted in height relatively easily.
  • the object of the invention is to provide a device as it has just been described but which allows one to independently adjust one of the other height and inclination of the work surface.
  • a device comprises two feet articulated with respect to each other at a point of their length. It is characterized in that at least one of said feet of each support is such that the three end points on the ground, of articulation and of upper end are not aligned, the work surface being mounted at the upper ends feet of each support.
  • At least one of the feet of each support is provided, at any point of the support, with a system of rotation of a branch with respect to the other branch of the same foot, thus allowing adjustment of the inclination of the worktop.
  • it comprises a spring intended to tend to maintain the cohesion of the assembly.
  • the work surface is pivotally mounted at the upper ends of two feet which correspond on the two supports and is mounted, by means of adjustment and locking means, at the upper ends of the two other feet.
  • said adjustment and blocking means consist of a rack between the teeth of which the ends of the two corresponding feet can be positioned.
  • said adjustment and blocking means consist of a slide, the fixed part of which is mounted under the work surface and the movable part of which is integral with the ends of said two feet.
  • said fixed part consists of a profile provided with an upper longitudinal face and with a lower longitudinal face parallel to said upper face and in that the movable part comprises two pins arranged so that '' they are respectively in contact with said two faces of said fixed part only when the work surface is in its inclined position.
  • said movable part comprises means for guiding in translation on the fixed part.
  • the branch of one foot of each support is of greater length than that of the branch of the other foot of the same support.
  • the end of a foot has a 90 ° reference.
  • a device By acting on the angle DOB, equal to the angle D'O'B ', as shown in FIG. 1, it is possible to vary the height of the work surface 3 of the table.
  • a device consists of two identical supports 10 and 11 each comprising two feet linked in O and in 0 ', at least one of the feet of each support of the work surface being such that the three ground end, hinge, and upper end points are not aligned.
  • the parallel to the ground AX defines with AC an angle CAX which represents the inclination of the plane.
  • At least one of the supports of each pair of supports can be provided with a system of rotation of one strand of the support relative to the other, at any point of the support, the purpose being to fix the inclination of the worktop.
  • the work surface (3) is articulated to the pivots A and A 'while a rack (4) makes it possible to block the assembly at the height chosen by the user.
  • a return spring (r) connects the supports at R and T. It has the effect of preventing the collapse of the assembly when the rack (4) is not engaged and of facilitating the adjustment by relieving the user of part of the weight.
  • the device according to the invention comprises adjustment and blocking means (4) which consist of said rack between the teeth of which the ends of the two corresponding feet can be positioned.
  • the rack could be replaced by any other indexing or continuous adjustment and blocking device.
  • the spring can be replaced by a device having the same effects: gas spring, counterweight, ...
  • FIG. 7 An advantageous embodiment of a device according to the invention applied to a table. This table was represented without its work plan. In this Fig. 7, the same references have been used for the same elements.
  • the device thus represented comprises a first support 10 consisting of two feet 10a and 10b articulated at a point of their length along an axis xx '. It comprises a second support 11 identical to the first support 10 and comprising two articulated legs 11a and 11b.
  • the lower branches 1a and 1b of the feet 10a and 10b have the same length from the axis xx 'to the ground.
  • the high branches 2a and 2b have the same length from the axis xx 'to their upper ends. It is the same for support 11.
  • the feet 10a and 11a are rectilinear
  • the feet 10b and 11b are, according to the invention, bent at the level of the hinge axis xx 'of pivoting with respect to the feet 10a and 11a.
  • the lower ends of the legs 10b and 11b are interconnected by a bar 5.
  • the upper ends of the upper branches 2b are connected to each other by a horizontal tube 5 or bar 5 in the middle of which a slide 60 is articulated which will be described below.
  • the upper ends of the branches 2a have a reference 6 at the end of which is mounted a fixing lug 7 articulated so as to be able to pivot along an axis yy '.
  • the work surface of the table is fixed on the fixing lugs 7 and on the slide 60.
  • Z axes are shown the axes of the fixing screws necessary for this mounting.
  • a slide 60 is shown according to a preferred embodiment of the invention. We will recognize the bar 5.
  • a plate 61 On this bar 5, is mounted, pivotally along the longitudinal axis of the bar 5, a plate 61 provided for sliding and locking in a rail 62. As will be seen later, the plate 61 constitutes the movable part of the slide 60 while the rail 62 constitutes the fixed part.
  • the rail 62 consists of a section of rectangular section which is open in its lower part according to a slot 63. It comprises a longitudinal upper face 62a and a logitudinal lower face 62b which is parallel to the upper face 62a.
  • the free end of the plate 61 penetrates inside the rail 62 passing through the slot 63.
  • the plate 61 is provided with three pins 611 to 613 projecting on either side of the plate 61. They are arranged in a triangle with the base substantially in the longitudinal axis of the rail 62.
  • the distance between the straight line passing through the two pins 61 pig and 612 from the base of the triangle and the rod 613 from the top is such in the inclined position of the rail 62, that is to say when the work surface is normally inclined and when the table is in normal use, one of the base rods 611 and the top pin 613 are in force contact with respectively the lower face of the rail 62 (the one which includes the slot 63) and the opposite face, that is to say the upper face of the rail 62.
  • This position is shown in FIG. 9b. In this position, the friction forces between the rail 62 and the pins 611 and 613 are such that the plate 61 is wedged in the rail 62.
  • FIG. 9a There is shown in FIG. 9a, the rail 62 which is no longer inclined so that only the pins 611 and 612 are in contact with the single underside of the rail.
  • the plate 61 is then guided in the rail 62. This position is that taken by the rail 62 when the height of the device of the invention is modified, by moving the feet of the supports 10 and 11 apart or closer.
  • the function of the rod 612 is to provide guiding in translation of the plate 61 in the rail 62. In particular, it does not perform any function when the rail 62 is inclined. It will be understood that it would thus be possible to omit it without harming the wedging function of the plate 61 in the rail 62.
  • the axis xx 'materialized by the bar 5 and the axes yy' of the front pivoting of the work plane intersect the same circles C and C 'with respective centers O and O'. As we have seen and demonstrated previously, this ensures a constant inclination of the worktop with its height.
  • FIG. 10 Another embodiment which differs from that which is the subject of FIG. 6 in that the length of the branches 2a is greater so that the axis yy 'is on a circle with center O of radius greater than that on which the axis xx' is located.
  • the table can thus be folded up with the work surface 3 coming to assume an almost vertical position.
  • the variation of its height by bringing the feet 10a and 10b closer or further away, this time results in a variation of the tilt. But this is minimal and only becomes important when the yy axis 'passes over the xx axis'.
  • the advantage which also results from this embodiment lies in the fact that the axis xx ′ can remain close to the work plane 3.
  • the plate 61 can remain in the rail 62, facilitating the unfolding of the table.
  • the system according to the invention applies inter alia to any support for school activity, office or production in business.

Landscapes

  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Supports Or Holders For Household Use (AREA)
EP95460016A 1994-04-07 1995-04-07 Vorrichtung für Höhenverstellung einer neigbaren Arbeitsplatte. Withdrawn EP0680708A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9404414A FR2718333A1 (fr) 1994-04-07 1994-04-07 Système de réglage en hauteur d'un plan de travail incliné.
FR9404414 1994-04-07
FR9408946 1994-07-13
FR9408946A FR2718334A1 (fr) 1994-04-07 1994-07-13 Système de réglage en hauteur d'un plan de travail incliné.

Publications (2)

Publication Number Publication Date
EP0680708A2 true EP0680708A2 (de) 1995-11-08
EP0680708A3 EP0680708A3 (de) 1996-09-18

Family

ID=26231083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95460016A Withdrawn EP0680708A3 (de) 1994-04-07 1995-04-07 Vorrichtung für Höhenverstellung einer neigbaren Arbeitsplatte.

Country Status (2)

Country Link
EP (1) EP0680708A3 (de)
FR (1) FR2718334A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR900206A (fr) * 1943-11-30 1945-06-22 Bureau et siège scolaires pliants
US2560679A (en) * 1945-11-19 1951-07-17 Albert M Zalkind Multiuse folding table
US3080202A (en) * 1959-12-23 1963-03-05 Fortline Inc Foldable table
US3349727A (en) * 1966-06-30 1967-10-31 Hamilton Cosco Inc Tray table
FR2594662B1 (fr) * 1986-02-24 1989-06-30 Multigift Tablette pliante et son support de reception

Also Published As

Publication number Publication date
FR2718334A1 (fr) 1995-10-13
EP0680708A3 (de) 1996-09-18

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