EP0482638A1 - Table - Google Patents

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Publication number
EP0482638A1
EP0482638A1 EP91118155A EP91118155A EP0482638A1 EP 0482638 A1 EP0482638 A1 EP 0482638A1 EP 91118155 A EP91118155 A EP 91118155A EP 91118155 A EP91118155 A EP 91118155A EP 0482638 A1 EP0482638 A1 EP 0482638A1
Authority
EP
European Patent Office
Prior art keywords
table top
legs
table according
gear
front edge
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Withdrawn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
EP91118155A
Other languages
German (de)
English (en)
Inventor
Kurt Schärf
Jürgen Schraysshuen
Andrea Bednar
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.)
Scharf Bueromobel GmbH
Original Assignee
Scharf Bueromobel GmbH
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 Scharf Bueromobel GmbH filed Critical Scharf Bueromobel GmbH
Publication of EP0482638A1 publication Critical patent/EP0482638A1/fr
Withdrawn legal-status Critical Current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
    • A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
    • A47B21/06—Tables or desks for office equipment, e.g. typewriters, keyboards characterised by means for holding, fastening or concealing cables
    • 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
    • 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 invention relates to a table, in particular a writing or office machine table.
  • a table in particular a writing or office machine table.
  • such tables are adjustable in height, and often the inclination of the table top can be changed. For example, it is easier to draw on a table surface sloping towards the front edge of the table. Even when reading, an inclined table surface is perceived as pleasant because you don't have to bend over so far.
  • the table top is preferably supported in the rear area in order to restrict the movement space of the people working at the tables as little as possible. Accordingly, in such tables the hinge axes for pivoting the table top into an inclined position are also relatively far to the rear.
  • this has the disadvantage that when pivoting the height of the front edge of the table top and thus also the area in which e.g. is drawn or a document to be read is placed, is greatly changed. There is therefore a regular need to also adjust the height after setting a desired inclination.
  • the invention has for its object to provide a table in which after changing the inclination of the table top there is normally no need to adjust the height in order to bring the work area on the table top back to the usual height.
  • the table top is pivotally mounted in the rear area about a horizontal axis lying near its front edge.
  • the proposed table thus has a rear-mounted table top, which can freely cantilever forward towards the person working at the table and leaves a lot of room for movement. If the inclination of the table top is changed, the height of the rear edge of the table top changes, while the front edge remains at the same level since it is close to the pivot axis. It is not important for practical purposes that the upper front edge of the table top coincides exactly with the horizontal pivot axis. Even if the swivel axis is nearby, e.g. is only a few centimeters from the front edge of the table top, when swiveling the table top the working area located near its front edge changes its height only so slightly that it is not necessary to readjust the height of the table top.
  • the proposed measure facilitates and accelerates the setting of a table top to a certain inclination.
  • the table legs can be telescopically extended or shortened.
  • a simple swivel joint is sufficient for setting different working heights in connection with the proposal according to the invention, which, e.g. under the surface of the table in the area between the middle and the rear third. If, for example, the working height of the table is to be reduced, the table top can first be pivoted about the last-mentioned joint in such a way that the front edge of the table top is lowered and its rear edge is raised.
  • the entire table top together with the joint mentioned can then be pivoted about the horizontal pivot axis in the region of the front edge of the table top in such a way that the rear edge is lowered until the desired inclination is reached at a lower level, in which case the term 'inclination 'also includes the borderline case zero.
  • the table shown has a table top 10 which is movably mounted and guided on a table frame 12.
  • the table top 10 is divided into one Lower part 14 and an upper part 18 pivotably mounted thereon via a joint 16 with a horizontal axis.
  • the table frame 12 consists of two legs 20 arranged on the lateral edge edges of the table top 10, the upper ends of which are located behind the table top and the lower ends of which rest on the floor approximately perpendicularly below the front edge of the table top.
  • these In the upper area about 3/4 of the height of the legs 20, these have the shape of an arc, the center of which is located approximately at the front edge of the table top 10.
  • the radius can e.g. 67.3 cm.
  • the legs Towards the lower end, which in the example is slightly set back from the front edge of the table top, the legs extend in a straight line with an essentially tangential connection to the upper circular arc.
  • legs 22 extend obliquely backwards and downwards on the legs 20, which extend to approximately perpendicularly below the rear edge of the table.
  • the upper ends of the legs 20 are connected to one another by a flexurally and torsionally rigid cable duct 24, which forms a traverse.
  • 3 shows a cross section through the cable duct 24.
  • the legs 20 be an extruded profile made of an aluminum alloy and be firmly connected to the upper ends of the legs 20 by means of adapters.
  • the profile is closed at the bottom, rear and essentially also at the top.
  • the upper side is expediently covered with a plate 26, which corresponds to the upper part 19 of the table top 10, so that there is a uniform surface impression from the front edge to the rear edge of the plate 26.
  • the cable duct 24 has an opening which is accessible from the front and which can be closed by a front wall 28 in the form of a pivotable flap hinged at the bottom, a slot in the front of which remains open in the closed state, through which cable can be led out of the cable duct 24.
  • These cables extend upwards through a gap between the cover plate 26 and the table plate 10 onto the table surface.
  • Sockets 30 for device plugs are attached to the inside of the rear wall of the cable duct.
  • the legs 20 curved in a circular arc are firmly connected to a concentrically curved toothed rack 32, which could also be referred to as a segment of a ring gear.
  • 4 has a substantially T-shaped cross section, so that it can be engaged by two angled ends of a gear housing.
  • the two gearboxes one of which is located next to each table leg 20, together form the lower part 14 of the table top 10.
  • the arcuate rack 32 on the back of which the angled, circularly curved ends of the gearbox either slidable directly or with the interposition of a layer
  • the material 34 is in sliding contact, thus constituting an arc-shaped guide for the lower part 14 of the table top 10.
  • the play-free engagement of the driving gearwheels 36 mounted in the gearbox housings in the toothed rack 32 also ensures play-free engagement on the rear side of the rack 32.
  • the driving gearwheels 36 are stored approximately in the middle of the guided arc length of the table top lower part.
  • plastic rollers 38 shown in FIG. 5 can be rotatably mounted on the lower part 14 near its lower ends, which are supported on the radially inner surface of the legs 20 when the table top 10 is subjected to very high loads.
  • a screw 40 mounted in the tabletop lower part 14 is rotated from the front of the table via a crank (not shown) according to FIG. 5.
  • the worm 40 drives a worm wheel 42 and thus a gearwheel which is non-rotatably seated on its shaft and which meshes with an intermediate gear 44 which in turn meshes with the driving gearwheel 36.
  • the shaft of the worm wheel 42 extends between the two gear housings in front of the table legs 20, so that in both gear housings, which together form the table lower part 14, gear wheels 36 driving synchronously are driven via intermediate wheels 44.
  • the worm drive 40, 42 ensures because of its self-locking that the table top 14 in a position set by means of the crank on the curved rack 32 remains locked, regardless of how high the table top is loaded.
  • the tabletop upper part 18 is pivoted by hand about the hinge axis 16 relative to the lower part 14.
  • an arcuate row of holes can be made on the latter, for example, which come into flight when the upper part 18 is pivoted with a locking bolt mounted thereon.
  • a rod 46 rotatably supported at its upper end on the upper part 18 is provided, which in a first variant is provided with a series of holes into which a locking bolt 48 mounted on the lower part 14 can be inserted.
  • the rod 46 can be a toothed rack or threaded spindle, which is held by a counter-pressure bearing 50 in engagement with a toothed or worm wheel 52, which can be fixed or released, for example, by means of a releasable clutch or brake, one in the toothed wheel 52 engaging spring-loaded detent ball 54 generates a certain rotational resistance.
  • the table top 10 pivots according to the arrows shown in FIG. 1 with its rear edge upwards or below, while its leading edge remains essentially at the same level.
  • a slope of the table surface falling from back to front of about 8 to 10 ° is sufficient.
  • the front opening of the cable duct 24 can be exposed, e.g. Insert the device plug into the sockets 30 installed on the rear wall of the cable duct from the front of the table.
  • the back of the table can stand against a wall and can be chained to the side of other tables. After the table top 10 has been pivoted back into a central horizontal position, the cable duct 24 is again essentially inconspicuously below the work surface of the table.
  • the shape of the table legs shown allows a lightweight construction with sufficient load-bearing capacity, which gives the person working on the table a lot of freedom of movement.
  • the table could, however, also have essentially closed side walls with arch-shaped guides attached to their inner sides, the center of which lies near the front edge of the table top.
  • a more or less closed rear wall could be provided, which connects the side walls or legs to one another.
  • Another drive could also be provided for the movement of the lower part 14 along the curved guide 32.
  • a worm engages directly in a worm wheel seated on the shaft of the driving gear wheels 36.
  • a gear can also be provided for pivoting the table top part 18 about the hinge axis 16.
  • the toothed or worm wheel 52 could be driven in rotation, and preferably again by means of a crank from the front of the table.
  • the drive could also be derived from one of the gears of the transmission 36-44, it being possible to ensure by means of a coupling device that only the driving gears 36 and the gear or worm wheels 52, which are also arranged in pairs, are driven via the worm 40.
  • both the gears 36 and the toothed or worm gears 52 are driven simultaneously via the worm 40, the speeds being selected by a suitable choice of the gear ratios such that the pivoting movement of the table top part 18 about its leading edge is compensated for by the simultaneous pivoting about the hinge axis 16, so that essentially only a vertical movement of the table top part takes place.

Landscapes

  • Tables And Desks Characterized By Structural Shape (AREA)
EP91118155A 1990-10-24 1991-10-24 Table Withdrawn EP0482638A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904033769 DE4033769A1 (de) 1990-10-24 1990-10-24 Tisch
DE4033769 1990-10-24

Publications (1)

Publication Number Publication Date
EP0482638A1 true EP0482638A1 (fr) 1992-04-29

Family

ID=6416933

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118155A Withdrawn EP0482638A1 (fr) 1990-10-24 1991-10-24 Table

Country Status (2)

Country Link
EP (1) EP0482638A1 (fr)
DE (1) DE4033769A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113995235A (zh) * 2021-10-29 2022-02-01 合肥工业大学 一种适合会计学教学使用的可移动式实验桌

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425611C2 (de) * 1994-07-20 1997-12-11 Johannes Prof Dr Phil Uhlmann Arbeitstisch für Rechnerarbeitsplätze
DE10000344B4 (de) * 2000-01-07 2004-04-29 Moll System- und Funktions-Möbel GmbH Tisch, insbesondere Arbeits- oder Schreibtisch für Kinder und Jugendliche

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3512201A1 (de) * 1985-04-03 1986-10-09 Inaba Seisakusho Ltd., Tokio/Tokyo Tisch mit einem tischgestell
DE3514603A1 (de) * 1985-04-23 1986-10-23 Inaba Seisakusho Ltd., Tokio/Tokyo Tisch mit einem tischgestell
US4703700A (en) * 1985-04-19 1987-11-03 Inaba Seisakusho Ltd. Height adjustable desk
DE3801403A1 (de) * 1987-01-28 1988-08-25 Krause Robert Gmbh Co Kg Verstelleinrichtung zur neigungs- und/oder hoehenverstellung einer arbeits- oder tischplate eines moebels

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7719844U1 (de) * 1977-06-24 1977-09-29 Erich Bolte Gmbh, 6632 Saarwellingen Schreibtisch mit einem kabelkanal
DE3732150A1 (de) * 1987-09-24 1989-04-06 Werndl Wilhelm Gmbh & Co Kg Arbeitstisch, insbesondere buerotisch mit einer hoehen- und neigungsverstelleinrichtung
DE8911868U1 (de) * 1988-10-19 1990-01-11 Korb, Daniel, 7000 Stuttgart Tisch mit Tischgestell und Tischplatte sowie Stelleinrichtung zum Verändern der Höhe und Neigung der Tischplatte

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3512201A1 (de) * 1985-04-03 1986-10-09 Inaba Seisakusho Ltd., Tokio/Tokyo Tisch mit einem tischgestell
US4703700A (en) * 1985-04-19 1987-11-03 Inaba Seisakusho Ltd. Height adjustable desk
DE3514603A1 (de) * 1985-04-23 1986-10-23 Inaba Seisakusho Ltd., Tokio/Tokyo Tisch mit einem tischgestell
DE3801403A1 (de) * 1987-01-28 1988-08-25 Krause Robert Gmbh Co Kg Verstelleinrichtung zur neigungs- und/oder hoehenverstellung einer arbeits- oder tischplate eines moebels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113995235A (zh) * 2021-10-29 2022-02-01 合肥工业大学 一种适合会计学教学使用的可移动式实验桌
CN113995235B (zh) * 2021-10-29 2023-03-10 合肥工业大学 一种适合会计学教学使用的可移动式实验桌

Also Published As

Publication number Publication date
DE4033769A1 (de) 1992-04-30

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