EP0453409B1 - Lifting device, particularly for beds - Google Patents

Lifting device, particularly for beds Download PDF

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Publication number
EP0453409B1
EP0453409B1 EP91810277A EP91810277A EP0453409B1 EP 0453409 B1 EP0453409 B1 EP 0453409B1 EP 91810277 A EP91810277 A EP 91810277A EP 91810277 A EP91810277 A EP 91810277A EP 0453409 B1 EP0453409 B1 EP 0453409B1
Authority
EP
European Patent Office
Prior art keywords
lifting
nuts
frame
guide posts
cantilever
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.)
Expired - Lifetime
Application number
EP91810277A
Other languages
German (de)
French (fr)
Other versions
EP0453409A1 (en
Inventor
Manfred Kronshagen
Original Assignee
Manfred Kronshagen
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 to CH1310/90 priority Critical
Priority to CH1310/90A priority patent/CH680728A5/de
Application filed by Manfred Kronshagen filed Critical Manfred Kronshagen
Publication of EP0453409A1 publication Critical patent/EP0453409A1/en
Application granted granted Critical
Publication of EP0453409B1 publication Critical patent/EP0453409B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C17/00Sofas; Couches; Beds
    • A47C17/84Suspended beds, e.g. suspended from ceiling

Description

  • The invention relates to a lifting device, in particular for beds, with two vertical guide columns in the form of longitudinally slotted hollow profiles, threaded spindles mounted in the interior of the guide columns, and through the longitudinal slot of each guide column connected with spindle nuts, lifting and lowering load-bearing members.
  • Various devices have been proposed which serve to lift a bed against the ceiling when not in use in order to gain space on the floor. Some of these proposals provide complex, special drives installed in the bed frame (DE-A-37 36 012, DE-A-38 27 300), and a further known device has four corner pillars, each with a spindle, all spindles being driven by bevel gearwheels (FR-A-2 584 283). Especially because of the free-standing columns, the practical applicability and the benefits of the devices mentioned are very much in question.
  • A lifting device of the type mentioned (for lifting vehicles in automobile workshops) is known from US-A-1,497,046. There are two free-standing columns, each supported on the floor. The two threaded spindles can be driven together by hand via bevel gear and an intermediate shaft. As a result, there is a right-handed spindle in one column and a left-handed spindle in the other column required with appropriate mother. Two vehicle wheel sensors, each connected to a spindle nut, are located between the two columns.
  • The object of the present invention is to provide a lifting device which avoids the above-mentioned shortcomings of known devices and which is particularly easy to assemble and permits practically complete, free use of the space under, for example, a raised bed.
  • The lifting device according to the invention, which meets these requirements, is characterized in that the guide columns are connected by means of upper and lower cross connectors to form a flat, rigid frame designed for wall mounting, and that two threaded nuts run on each threaded spindle, on which a jib protruding from the plane of the frame is attached.
  • The lifting device designed in this way can be attached "flat" to the wall of the room using the flat frame placed on the floor, e.g. a bed with the long sides parallel to the wall is picked up by the two outriggers. The bed is therefore completely free on three sides. Under the bed are only the two outriggers, which are lifted together with the bed. Of course, the lifting device according to the invention can also take up other loads instead of a bed, in the living area, for example, bulky play equipment such as model railroad systems, etc .; but commercial applications are also conceivable, such as the creation of height-adjustable work surfaces for assembly work or the like.
  • Appropriate, special embodiments of the lifting device according to the invention, defined in claim 1, are specified in claims 2 to 8.
  • An exemplary embodiment of the subject matter of the invention is explained in more detail in connection with the drawing.
  • Fig. 1
    shows the entire lifting device in elevation, with the left guide column partially cut and all four frame sides are shown shortened,
    Fig. 2
    is a vertical section along the line II-II in Fig. 1 and shows the lifting device mounted on a room wall with a bed resting on the outrigger, the bed and outrigger are shown in dash-dotted lines in the upper end position raised against the ceiling,
    Fig. 3
    is a plan view of the left, upper corner of the device of FIG. 1 on a larger scale, and
    Fig. 4
    is a horizontal section through the left guide column at the level of line IV-IV in Fig. 1st
  • The lifting device shown has a flat, rigid frame as a supporting structure, consisting of two vertical guide columns 10, which are connected at the top and bottom by a cross connector 12 each (axes 13 of connecting screws in the cross section of the column 10 shown in FIG. 4). Fastening tabs or brackets 14 are attached to both cross connectors 12 (and / or to the guide columns 10). With the help of these fastening elements, the lifting device, placed on the floor, can easily be mounted on a room wall 6 (FIG. 2). Each of the guide columns 10 is expediently formed by a square hollow profile with a longitudinal slot 11; they are preferably produced as an extruded profile from a light metal alloy, so that post-processing is not necessary. Each of the guide columns 10 is assigned a threaded spindle 20 which runs parallel to the column inside the profile and is mounted in a bearing 21 on the frame or in each case in the upper and lower cross connector. Run on each threaded spindle 20 two spaced nuts 22, which are guided on the associated guide column 10, in the present case on the inner walls of the square hollow profile. The nuts 22 are expediently made of an abrasion-resistant plastic; With regard to abrasion and sliding properties compared to the guide column 10 and a threaded spindle 20 with a rolled thread, a low-pressure polyethylene mixture (trade name "Polydur") is particularly suitable.
  • Seen in the frame plane, the longitudinal slots 11 of both guide columns 10 face each other, and the nuts 22 protrude somewhat from the profile 10 through the slot in question (FIG. 4). On the two superimposed nuts 22 of each guide column, an outrigger projecting from the plane of the frame is attached for the load bearing. In the present example, the cantilevers are designed as essentially flat plates 24, with the upper edge of which is connected to a square tube 25. When the two spindles 20 are driven synchronously, the arms 24 can be raised and lowered in the same direction along the associated guide columns 10; in Fig. 1, the two arms are shown near their lower end position. Holding members 26 are mounted on the upper edge of each boom to receive the frame or frame 8 of a bed 7 (Fig. 2). If necessary, the holding members 26 can be slidably attached to the outriggers, or the outriggers can be adjustable in length (extendable) in order to allow adaptation to bed frames 8 of different widths. At the free end of each boom, a support foot 27 can be attached, which can be folded up when the boom is raised and thereby comes to rest under the square tube 25 (not shown in FIG. 1).
  • For the synchronous drive of the two threaded spindles 20, a common drive motor 15 is provided, which, for. B. is mounted on the upper cross connector 12. The drive connection from the pinion 17 of the motor to a pinion 19 at the upper end of each spindle 20 takes place by means of a toothed belt 16, which via the said pinion and guide rollers 18 and one Tension roller 18 'rotates. Thanks to this drive of the spindles with the same direction of rotation, identical spindles and nuts with right-hand thread can be used on both sides. The upper and lower end positions of the brackets 24 are fixed by means of limit switches 33 mounted on the guide columns 10, which interact with the nuts 22.
  • A cover for the longitudinal slot 11 on the associated guide column 10 is also connected to each boom; it is a band 31 formed into a loop, which is guided over lower and upper deflection rollers 32 and moves with the lifting and lowering of the booms. As a result, the spindles 20 and the inner sliding surfaces of the guide columns 10 are protected against dirt and unauthorized access.
  • The lifting device described can be transported very easily as a unit, with only the two arms not yet being screwed to the nuts 22. The flat frame can be easily attached to a room wall, and then the two brackets are installed. After establishing the electrical connection for the drive motor 15, the device is ready for use. A motor switch with key lock or security by entering a code number or the like is advantageously provided so that the jibs cannot be raised or lowered unauthorized or willfully (e.g. by children); remote control using infrared control or the like is also conceivable.
  • The construction shown with two nuts 22 guided on the columns 10 enables a very effective load absorption and guidance of the loaded cantilevers on the guide columns. In addition, the height spacing of the two nuts on the spindles can be selected as required in order to be able to fasten boom plates of different heights. Commercially available beds can be used with the lifting device, on the frame of which no changes or assembly work are required. The bed is with one long side parallel to the wall or frame of the two outriggers, leaving the three remaining sides of the bed completely free. Above all, it is advantageous that when the bed is raised, the space underneath, apart from the flat frame mounted on the wall, is completely freely accessible and usable, as can be seen above all from FIG. 2. The load suspension via self-locking nuts on spindles also offers a high degree of safety, in contrast to the load suspension on cables, chains or the like. In order to achieve a homely appearance, the entire frame can be hidden behind a cladding, for example designed as a wall unit (not shown), in which only two narrow slots are to be provided for carrying out the two plate-shaped brackets.

Claims (8)

  1. Lifting device, particularly for beds, having two vertical guide posts (10) formed as hollow profiles incorporating a longitudinal slot, screw-shaft spindles (20) mounted within the guide posts and adapted to be jointly operated, and load-carrying elements adapted to be raised and lowered and which are connected to spindle nuts (22) through the longitudinal slot (11) of each guide post,
    characterised in that the guide posts (10) are connected by means of upper and lower cross-struts (12) to a flat, rigid frame suitable for wall fixing, and in that on each screw-shaft spindle (20) ride two nuts (22) spaced one above the other, a cantilever (24) projecting from the plane of the frame (10, 12) being attached to said nuts (22).
  2. Lifting device according to claim 1, characterised in that the guide posts (10) are made of an extrusion-moulded light-alloy section and the nuts (22) are made of an abrasion-resistant synthetic material.
  3. Lifting device according to claim 1, characterised in that the cantilevers (24) are designed as substantially flat panels or plates and the longitudinal slots (11) of the two guide posts (10) face one another in the plane of the frame.
  4. Lifting device according to claim 1, characterised in that a supporting foot (27) adapted to be folded or hinged up is attached to the free end of each cantilever (24).
  5. Lifting device according to claim 1, characterised in that each cantilever (24) is provided with at least one retaining element (26) for a bed frame (8).
  6. Lifting device according to claim 1, characterised by having a cover (31) extending from each cantilever (24) and moving therewith to close the longitudinal slot (11) of the associated guide post (10).
  7. Lifting device according to claim 1, characterised in that a common drive motor (15) with pinion (17) is fixed to one of the cross-struts (12) and in that the spindles (20) are adapted to be operated in the same sense of rotation by means of a toothed belt (16) passing via the motor pinion (17) and a respective spindle pinion (19).
  8. Lifting device according to claim 1, characterised by having end switches (33) to define the upper and lower end position of the cantilevers (24).
EP91810277A 1990-04-18 1991-04-12 Lifting device, particularly for beds Expired - Lifetime EP0453409B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH1310/90 1990-04-18
CH1310/90A CH680728A5 (en) 1990-04-18 1990-04-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT91810277T AT99895T (en) 1990-04-18 1991-04-12 Lifting device, in particular for beds.

Publications (2)

Publication Number Publication Date
EP0453409A1 EP0453409A1 (en) 1991-10-23
EP0453409B1 true EP0453409B1 (en) 1994-01-12

Family

ID=4207451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810277A Expired - Lifetime EP0453409B1 (en) 1990-04-18 1991-04-12 Lifting device, particularly for beds

Country Status (7)

Country Link
US (1) US5056170A (en)
EP (1) EP0453409B1 (en)
JP (1) JPH0759211B2 (en)
AT (1) AT99895T (en)
CH (1) CH680728A5 (en)
DE (1) DE59100832D1 (en)
ES (1) ES2048001T3 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2158212Y (en) * 1993-03-16 1994-03-09 林柏青 Hanging type bed
US5404767A (en) * 1993-09-03 1995-04-11 Sutherland; James M. Oil well pump power unit
JP3442863B2 (en) * 1994-06-10 2003-09-02 隆 松浦 Patient bed with release frame and moving device for release frame
AT402003B (en) * 1995-02-09 1997-01-27 Waagner Biro Ag Device for changing the position of an object used occasionally
AT2047U1 (en) * 1997-08-22 1998-04-27 Trattner Manfred Adjustable bed
DE29720337U1 (en) * 1997-11-17 1998-01-22 Dewert Antriebs Systemtech Drive arrangement of an electromotive height adjustment device
US5967728A (en) * 1997-11-26 1999-10-19 Emtrol, Inc. Precision placement storage and retrieval system
GB2349073A (en) * 1999-04-10 2000-10-25 Alison Jayne Cooper Cantilevered bedframe
EP1201163A1 (en) * 2000-10-30 2002-05-02 Gerhart W. Vilsmeier Elevation bed with belt drive
EP1216633B1 (en) * 2000-12-15 2007-02-21 Gerhart W. Vilsmeier Elevation bed
DE10201008B4 (en) * 2002-01-11 2010-07-08 Mettler-Toledo Ag Weighing system with a lifting system
US6629322B1 (en) * 2002-05-03 2003-10-07 Skyline Corporation Manual assisted vertical lift bed
SE525363C2 (en) * 2003-06-10 2005-02-08 Andreas Tillman Height adjustable bed
WO2005012156A2 (en) 2003-07-31 2005-02-10 Happijac Company System and method for moving objects
ES1060203Y (en) * 2005-04-29 2005-11-16 Hernandez Andres Menor Housing furniture conditioner
WO2009024972A2 (en) * 2007-08-20 2009-02-26 Srour, Mark A continuously height adjustable baby mattress support and apparatus therefor
US7874026B2 (en) * 2007-08-24 2011-01-25 Double Space Bed Systems, Inc. System and method for raising and lowering a bed
DE202008009848U1 (en) 2008-07-17 2008-11-27 Walser, Alfred Device for automatically raising beds
WO2015087054A1 (en) * 2013-12-13 2015-06-18 Dandi Living Limited A support system
US9656590B2 (en) 2014-05-15 2017-05-23 Lippert Components, Inc. Bed lift mounting member
CN105540490A (en) * 2016-02-03 2016-05-04 中国原子能科学研究院 Jacking device
GB2549533B (en) * 2016-04-22 2020-01-01 Healthcare Storage Solutions Ltd Apparatus for storing bed frames
US10463161B2 (en) * 2016-07-26 2019-11-05 Lippert Components, Inc. Furniture lifting system

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1170929A (en) * 1915-03-29 1916-02-08 Joseph L Nylander Bed-lifter.
US1497046A (en) * 1923-07-09 1924-06-10 Charles F Trusler Automobile jack
CH280939A (en) * 1950-01-16 1952-02-15 Villars Julio Lifting device for a vehicle.
GB897231A (en) * 1959-06-12 1962-05-23 Million Guiet Tubauto Improvements in or relating to sleeping-berths
US3512314A (en) * 1967-07-05 1970-05-19 Warren T George Portable layover units
DE2052869A1 (en) * 1970-10-28 1972-05-10
ZA7304148B (en) * 1972-08-21 1974-05-29 Uniroyal Inc Combination"v"and"timing"belt
DE2257810A1 (en) * 1972-11-25 1974-05-30 Herbert Fenk In particular movable aerial work platform
JPS53156706U (en) * 1977-05-13 1978-12-08
AT359680B (en) * 1979-04-05 1980-11-25 Ressmann Horst Ing Adjustable bed
JPS5691713A (en) * 1979-12-25 1981-07-24 Suda Kensetsu Yuugen Bed
JPS60120022A (en) * 1983-12-05 1985-06-27 Hitachi Ltd Plastic gear
JPS61198125U (en) * 1985-06-03 1986-12-11
FR2584283A1 (en) * 1985-07-08 1987-01-09 Leroger Robert Bedding elevator system
JPH0728783B2 (en) * 1986-04-23 1995-04-05 三和シヤツタ−工業株式会社 Lifting bed adjustment device
GB2199803B (en) * 1987-01-20 1991-05-29 Sanwa Shutter Corp Elevation bed
DE8711298U1 (en) * 1987-08-20 1987-10-01 Schroff Gmbh, 7541 Straubenhardt, De
FR2633814A1 (en) * 1988-06-09 1990-01-12 Berthilier Gilbert Retractable bed system for small sized living rooms

Also Published As

Publication number Publication date
AT99895T (en) 1994-01-15
JPH0759211B2 (en) 1995-06-28
CH680728A5 (en) 1992-10-30
DE59100832D1 (en) 1994-02-24
JPH05309028A (en) 1993-11-22
ES2048001T3 (en) 1994-03-01
US5056170A (en) 1991-10-15
EP0453409A1 (en) 1991-10-23

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