EP0355451A1 - Raumgerät mit einem Abstützteil und einer höhenverstellbaren Platte - Google Patents

Raumgerät mit einem Abstützteil und einer höhenverstellbaren Platte Download PDF

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Publication number
EP0355451A1
EP0355451A1 EP89113773A EP89113773A EP0355451A1 EP 0355451 A1 EP0355451 A1 EP 0355451A1 EP 89113773 A EP89113773 A EP 89113773A EP 89113773 A EP89113773 A EP 89113773A EP 0355451 A1 EP0355451 A1 EP 0355451A1
Authority
EP
European Patent Office
Prior art keywords
shaft
gear
plate
unit according
height
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Withdrawn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
EP89113773A
Other languages
German (de)
English (en)
French (fr)
Inventor
Karl-Heinz Ganzenmüller
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.)
Lista Degersheim AG
Original Assignee
Lista Degersheim AG
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 Lista Degersheim AG filed Critical Lista Degersheim AG
Publication of EP0355451A1 publication Critical patent/EP0355451A1/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Withdrawn legal-status Critical Current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
    • A47B9/00—Tables with tops of variable height
    • A47B9/04—Tables with tops of variable height with vertical spindle
    • 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
    • A47B9/04—Tables with tops of variable height with vertical spindle
    • A47B2009/043—Tables with tops of variable height with vertical spindle with means connecting the spindles of the various 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
    • A47B9/18—Tables with tops of variable height with additional top or additional legs for varying the height of the top
    • A47B2009/185—Tables with tops of variable height with additional top or additional legs for varying the height of the top being positioned between the table top and the legs or underframe
    • 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
    • A47B2220/00—General furniture construction, e.g. fittings
    • A47B2220/0091—Electronic or electric devices
    • A47B2220/0097—Remote control for furniture, e.g. tables or shelves

Definitions

  • the invention relates to a space device, consisting of a support part and a, mounted on the support part, horizontally or inclined plate, which is adjustable in height above the ground by a lifting device arranged on the support part, which is from the area of the two ends of the Plate assembled, which are coupled to each other via a connecting shaft.
  • a room unit is to be understood here as meaning various devices which are provided with a height-adjustable plate. It can be a piece of furniture on which the plate is mounted. However, there can also be only two columns with one foot, which are connected to each other by trusses. But it can also be only attached to a wall housing for receiving the height adjustment.
  • the height adjustability of the plate is therefore required in order to be able to take ergonomic aspects into account.
  • the plate therefore requires that the plate not only be adjustable in height but also in its inclination.
  • Height-adjustable plates are known from hoist construction.
  • four spindle drives are provided at the corners of the plate, which are mechanically or electrically coupled to one another if only simple height adjustability is required. If the inclination of the plate is also required, this can be achieved by actuating the individual spindle drives differently.
  • Such a height and / or incline-adjustable plate is known from DE-A-3 343 066.
  • the plate is arranged on a frame, which is composed of two C-shaped side parts and a connection carrier.
  • Gear jacks are arranged in the support arms of the C-shaped side parts in the area of the four corners of the plate. These jacks have two parallel threaded spindles, between which a gear is arranged.
  • Two gearwheels opposite each other are connected to each other with their gearwheels by a connecting shaft.
  • Two connecting shafts are therefore required for the height adjustment of the plate, both the rack-side geared lifting gear being coupled to one another by means of a connecting shaft. This allows the plate to be adjusted both in height and in inclination.
  • a hand crank is provided for each lifting gear, when the plate is rotated in the same direction, the height is adjusted and when the plate is rotated in the same direction, the inclination of the plate is adjusted.
  • each gear lifting gear two height-spaced gears are provided with a horizontal axis of rotation, of which at least one gear is rotatably connected to the connecting shaft and on the shafts of the plate freely cantilever is supported.
  • the room unit shown in FIG. 1 has a support part 1 which carries a height-adjustable plate 2.
  • the support part 1 is essentially designed as a frame with two columns 3, which is provided with a foot part 4 to the frame to give necessary stability.
  • the two columns 3 are connected to each other by crossbeams.
  • the two columns 3 have a cuboid shape, the columns being arranged in such a way that two columns facing each other enclose an angle of 90 ° . This makes it possible to use the columns 3 to connect another room unit without the need for additional columns.
  • a gear jack 6, 7 is fixed, the structure of which is explained with reference to FIGS. 2 and 3.
  • Both gearwheels 6, 7 are similar to each other and have a housing 8 in which a vertically arranged threaded shaft 9, two spaced-apart gears 10, 11 and a parallel to the threaded shaft 9, smooth auxiliary shaft 12 are mounted.
  • the gear wheels 10, 11 are arranged between the two shafts 9, 12 and have shaft pieces 13, 14 directed horizontally inwards.
  • a connecting shaft 15 is coupled to one another via articulated couplings 16 on the two upper shaft pieces 13 of the two gearwheel lifting gear 6, 7.
  • a gear wheel countershaft 17 is installed in the connecting shaft 15, on the drive side of which a drive shaft 18 extending transversely to the connecting shaft 15 is arranged with a hand crank 19.
  • the gear train 17 On the drive side, the gear train 17 has two shaft ends, which are coupled to corresponding parts of the connecting shaft 15 (not shown).
  • the plate 2 is freely cantilevered and has a subframe on the two sides and possibly on the edge on the support part side, of which two support arms 20 can be seen in FIG. 1.
  • the support arms 20 are angled in the area of the columns and have bearings (not shown) which are supported on the shaft pieces 13, 14. This way the plate is over hers Support frame mounted on the two gears 6, 7 arranged one above the other.
  • gears 10, 11 of the two gear lifting gears 6, 7 move up or down.
  • the gearwheels 10, 11 form a rack and pinion drive with the threaded shaft 9 and the auxiliary shaft 12, the auxiliary shaft 12 merely forming a support for the gearwheels 10, 11.
  • FIG. 1 A height-adjustable plate is thus realized in FIG. 1, in which the height adjustability is achieved solely by the gear-lifting gear pair 6, 7 and the connecting shaft 15. It is also possible to use a motor instead of the crank handle 19 to adjust the height of the plate 2.
  • the motor can be switched on or off by a switch, but switching on and off can also be carried out by a sensor that is activated by an infrared pulse generator. These two switching options are shown schematically in Figure 4.
  • FIG. 4 shows another room unit that largely corresponds to that of FIG. 1.
  • the support part 1 and the plate 2 are of the same design, which is why the relevant reference numerals are not explained again.
  • the difference from the embodiment according to FIG. 1 is that part of the connecting shaft 15 is formed by a motor 22 which has two opposite shaft ends 23 which are coupled by a coupling sleeve 24 to coupling pins 25 of the connecting shaft 15.
  • the coupling pins 25 can have a polygonal profile or a toothing, while the coupling sleeve 24 is provided with the corresponding counter profile.
  • the gear jacks 6, 7 are of exactly the same design as in the room unit according to FIG. 1, which is why they are not shown again are.
  • the plate 2 is also provided with support arms 20 of the subframe and thus supported on the two shaft pieces 13, 14 of the gears 10, 11.
  • the connection between the shaft piece 13 and the connection shaft 15 also takes place in the same way as in the embodiment according to FIG. 1.
  • FIG. 4 shows a switch 26 for switching on and off, with which the motor 22 is operated.
  • a remote control with a sensor 27 and a pulse generator 28 is also shown schematically in FIG.
  • a third room unit is partially shown, in which the height adjustment of the plate 2 is carried out with a gearwheel pair (only lifting gear 6 shown) and a connecting shaft 15.
  • the height adjustability of the plate 2 is not achieved by a drive via the connecting shaft 15, but by a hand crank 19, with which the threaded shaft 9, see Figure 6, is driven.
  • the auxiliary shaft 12 is not designed as a smooth shaft but also as a threaded shaft.
  • the gear jack 6 is of the same design as in the embodiments according to FIGS. 1 and 4, also the associated gear jack 7, which, however, retains the smooth auxiliary shaft 12.
  • FIGS. 7 and 10 show room units in which the plate 2 can be adjusted not only in height but also in inclination, which is also the case only one pair of gear-jacks is required.
  • the two columns 3 of the support part 1 have prism shapes, one Side of the triangular profile is aligned parallel to the corresponding side of the opposite column.
  • the triangular profile of column 3 allows a second triangular profile column to be arranged in another room unit without requiring additional space.
  • the two triangular columns complement each other to form a cuboid like the column according to the devices according to FIGS. 1, 4 and 5.
  • two motors 22 and two connecting shafts 15 are also required, which are connected to the shaft pieces 13, 14 of the gear lifting gear 6, 7, see FIGS. 8 and 9.
  • the two gear wheels 10, 11 are not arranged exactly with respect to one another, but rather interact with one threaded shaft 9, 30 each.
  • a smooth auxiliary shaft 12 is arranged between the two gear wheels 10, 11, on which the two gear wheels 10, 11 can be supported.
  • the second gear lifting gear 7, see FIG. 9, has a simpler construction in that it has only a single threaded shaft 9 with which the gear wheels 10, 11 cooperate.
  • two auxiliary shafts 12, 32 are required to support the gears 10, 11.
  • the room unit with its plate 2 is of the same design as the room units already described. Since plate 2 is also inclinable, it is necessary to provide the lower bearing on the shaft piece 14 with a slot 33 so that the plate can be inclined accordingly.
  • the motor 22 connected to the shaft piece 14 is also designed to be pivotable.
  • FIG. 10 another room unit is partially shown, in which the plate 2 is adjustable not only in height, but also in the inclination.
  • the drive is carried out by two Hand cranks 19, see Figure 11.
  • the gear jack 6 is equipped with a third threaded shaft 34 instead of the smooth auxiliary shaft 12.
  • the gear wheel lifting gear 6 has three threaded shafts 9, 30, 34 lying next to one another, between which the gear wheels 10 lie. Because of the inclinability of the plate 2, it is not possible to arrange the shaft pieces 13, 14 at an angle to the connecting shafts 15, but rather these shafts are aligned with the connecting shafts 15.
  • the second gear-type lifting gear 7 of the gear pair required for the room unit according to FIG. 10 is exactly the same designed like the gear jack 7 according to FIG.
  • this gear has a threaded shaft 12 and two smooth auxiliary shafts 12, 32.
  • a slot 33 must also be provided for the lower mounting in the room unit according to FIG. 10.

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  • Invalid Beds And Related Equipment (AREA)
EP89113773A 1988-08-03 1989-07-26 Raumgerät mit einem Abstützteil und einer höhenverstellbaren Platte Withdrawn EP0355451A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH294288A CH676658A5 (ja) 1988-08-03 1988-08-03
CH2942/88 1988-08-03

Publications (1)

Publication Number Publication Date
EP0355451A1 true EP0355451A1 (de) 1990-02-28

Family

ID=4245100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113773A Withdrawn EP0355451A1 (de) 1988-08-03 1989-07-26 Raumgerät mit einem Abstützteil und einer höhenverstellbaren Platte

Country Status (2)

Country Link
EP (1) EP0355451A1 (ja)
CH (1) CH676658A5 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262030A (en) * 1991-12-06 1993-06-09 Energy Facilities Management L A levelling workstation
US5601037A (en) * 1995-06-09 1997-02-11 Haworth, Inc. Table with recessed height-adjusting crank
NL1007311C2 (nl) * 1997-10-20 1999-04-27 Elmeq Nederland B V Aandrijving.
EP0928579A3 (de) * 1997-12-16 2002-01-30 Dewert Antriebs- und Systemtechnik GmbH & Co. KG Möbelantrieb
DE102016116300B4 (de) 2016-04-26 2023-10-05 Timotion Technology Co., Ltd. Elektrischer tischständer, kupplung desselben und elektrischer tisch mit dem elektrischen tischständer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627364A (en) * 1985-12-20 1986-12-09 Lear Siegler, Inc. Vertically-adjustable desk structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627364A (en) * 1985-12-20 1986-12-09 Lear Siegler, Inc. Vertically-adjustable desk structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262030A (en) * 1991-12-06 1993-06-09 Energy Facilities Management L A levelling workstation
GB2262030B (en) * 1991-12-06 1995-08-02 Energy Facilities Management L Improved workstation
US5601037A (en) * 1995-06-09 1997-02-11 Haworth, Inc. Table with recessed height-adjusting crank
NL1007311C2 (nl) * 1997-10-20 1999-04-27 Elmeq Nederland B V Aandrijving.
WO1999020152A1 (en) * 1997-10-20 1999-04-29 Elmeq Nederland B.V. A drive unit
EP0928579A3 (de) * 1997-12-16 2002-01-30 Dewert Antriebs- und Systemtechnik GmbH & Co. KG Möbelantrieb
DE102016116300B4 (de) 2016-04-26 2023-10-05 Timotion Technology Co., Ltd. Elektrischer tischständer, kupplung desselben und elektrischer tisch mit dem elektrischen tischständer

Also Published As

Publication number Publication date
CH676658A5 (ja) 1991-02-28

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