EP1501390A1 - Dispositif de reglage a moteur electrique - Google Patents

Dispositif de reglage a moteur electrique

Info

Publication number
EP1501390A1
EP1501390A1 EP03747415A EP03747415A EP1501390A1 EP 1501390 A1 EP1501390 A1 EP 1501390A1 EP 03747415 A EP03747415 A EP 03747415A EP 03747415 A EP03747415 A EP 03747415A EP 1501390 A1 EP1501390 A1 EP 1501390A1
Authority
EP
European Patent Office
Prior art keywords
drive
electromotive
coupling
adjusting device
coupling element
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.)
Granted
Application number
EP03747415A
Other languages
German (de)
English (en)
Other versions
EP1501390B1 (fr
Inventor
Andreas Roither
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.)
Dewert Antriebs und Systemtechnik GmbH and Co KG
Original Assignee
Dewert Antriebs und Systemtechnik GmbH and Co KG
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 Dewert Antriebs und Systemtechnik GmbH and Co KG filed Critical Dewert Antriebs und Systemtechnik GmbH and Co KG
Publication of EP1501390A1 publication Critical patent/EP1501390A1/fr
Application granted granted Critical
Publication of EP1501390B1 publication Critical patent/EP1501390B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/041—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by electric motors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/08—Head -, foot -, or like rests for beds, sofas or the like with means for adjusting two or more rests simultaneously

Definitions

  • the invention relates to an electromotive adjustment device for the adjustable components of a piece of furniture, in particular a slatted frame, which is equipped with at least two drive trains, the output members of which are connected directly or via coupling elements to the component to be adjusted in such a way that the components to be adjusted are optionally individually and / or are adjustable together.
  • the previously known electromotive ner adjusting devices of the type in question are equipped with two drive motors, on each of which a worm drive is arranged. Spindles are driven via the worm drives, on which spindle nuts are placed, which are secured against rotation. These spindle nuts form the output member of each drive train, which consists of the worm drive, the spindle and the spindle nut.
  • the head and foot sections of a slatted frame are usually adjusted using the so-called double drives.
  • Such electromotive ner adjusting devices have proven their worth in practice. However, since they are to be regarded as mass products, they should be able to be manufactured particularly cost-effectively, i.e. they should be structurally simple. However, the costs are influenced significantly by the two drive motors and the actuators.
  • the invention has for its object to design an electromotive adjusting device of the type described in the introduction in such a way that the number of components, in particular the cost-intensive components, can be reduced in order to reduce costs.
  • the task is solved by connecting the drive trains with a single drive motor.
  • the solution according to the invention eliminates at least one of the two drive motors. Even if one assumes that the power of the single drive motor must now be increased if necessary, one motor can be purchased at a lower price than two motors. In addition, there are no electrical or electronic components for controlling the second motor.
  • a speed reduction drive is connected downstream of the drive motor, that it has a rotating body which can be positively and / or non-positively coupled to one or more coupling elements.
  • the speed reduction drive could in turn be a worm drive, so that in the solution according to the invention not only a motor but also a worm drive is saved.
  • This coupling element could be switchable by means of an electrical switching element, preferably an electromagnet or a lifting magnet.
  • the coupling element comes into contact with the rotating body.
  • the coupling element is non-rotatably mounted on a spindle that moves and rotates the output member, preferably the spindle nut.
  • two coupling elements are used in the embodiment according to the invention. In a preferred embodiment, these are designed as pulling couplings which can be moved in the axial direction with respect to the longitudinal axis of the spindles.
  • it should be made of a magnetizable material, for example metal, a sintered material or using the casting process.
  • Figure 1 shows the electromotive adjustment device in a partial view, in a first embodiment
  • Figure 2 shows the electromotive adjustment device in a partial view, in a second embodiment.
  • the electromotive adjustment device contains two spindles 10, 11, which are each part of a drive train.
  • a spindle nut secured against rotation is placed on each spindle 10, 11 and moves in the longitudinal direction of the spindles 10, 11 when the spindles 10, 11 rotate.
  • These spindle nuts can press on a link lever, for example to adjust the head or foot section of a slatted frame.
  • they can also be coupled to the components to be adjusted in a different way.
  • a worm wheel 12 is placed on the mutually facing ends of the spindles 10, 11 in a rotationally fixed manner.
  • This worm wheel 12 is driven by a worm 13 which is non-rotatably mounted on the driven pin 14 of an otherwise not shown drive motor.
  • the output pin of the drive motor could also be designed as a worm.
  • two coupling elements 14, 15 are placed on bushings 16, 17, the bushes 16, 17 being connected to the spindles 10, 11 in a rotationally fixed manner.
  • the coupling elements 14, 15 can be moved in the longitudinal direction of the spindles 10, 11, but take the spindles 10, 11 with them when the worm wheel 12 rotates, provided that they are in the of the worm wheel 12 with the spindles 10, 11, provided that they are in the operating position.
  • the coupling elements 14, 15 or the pulling couplings are moved in the longitudinal directions of the spindles 10, 11 via magnets 18, 19.
  • the worm wheel 12 is positively connected to the coupling elements 14, 15.
  • the coupling elements 14, 15 are provided with projecting pins 20, 21 which engage in corresponding bores in the worm wheel.
  • the pins 20, 21 either engage or disengage from the worm wheel 12.
  • the magnets 18, 19 are provided with two pins, which are located in circumferential grooves of the coupling elements 14 , 15 intervene. These coupling elements are ring-shaped and can also be switched via the magnets 18, 19 in such a way that entrainment takes place by the worm wheel 12 or that they stand still despite the worm wheel 12 rotating.
  • the spindles 10, 11 could be driven via two bevel gears located opposite one another. At right angles to the axes of rotation of the bevel gears or to the longitudinal axes of the spindles 10, 11 is another bevel gear, which could also be switched via a magnet or a similar component and is only in engagement with a bevel gear. To reduce this middle bevel gear could be connected to the worm gear and consequently run synchronously.
  • the adjustment device has at least two drive trains which can be driven by a common motor, either either only one drive train being put into operation, or with a corresponding design of the drive motor for both drive trains.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Gear Transmission (AREA)
  • Valve Device For Special Equipments (AREA)
  • Transmission Devices (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Liquid Crystal Substances (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Blinds (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Lock And Its Accessories (AREA)
EP03747415A 2002-05-03 2003-04-24 Dispositif de reglage a moteur electrique Expired - Lifetime EP1501390B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20207070U DE20207070U1 (de) 2002-05-03 2002-05-03 Elektromotorische Verstelleinrichtung
DE20207070U 2002-05-03
PCT/EP2003/004255 WO2003092443A1 (fr) 2002-05-03 2003-04-24 Dispositif de reglage a moteur electrique

Publications (2)

Publication Number Publication Date
EP1501390A1 true EP1501390A1 (fr) 2005-02-02
EP1501390B1 EP1501390B1 (fr) 2006-06-28

Family

ID=28459030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03747415A Expired - Lifetime EP1501390B1 (fr) 2002-05-03 2003-04-24 Dispositif de reglage a moteur electrique

Country Status (6)

Country Link
EP (1) EP1501390B1 (fr)
AT (1) ATE331452T1 (fr)
DE (2) DE20207070U1 (fr)
DK (1) DK1501390T3 (fr)
ES (1) ES2268396T3 (fr)
WO (1) WO2003092443A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005062999B4 (de) * 2005-12-30 2016-10-27 Dewertokin Gmbh Elektromotorischer Möbelantrieb
DE202007015811U1 (de) * 2007-11-13 2009-03-26 Dewert Antriebs- Und Systemtechnik Gmbh Möbelantrieb

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2725887B1 (fr) * 1994-10-25 1997-01-03 Neige Jean Francois Dispositif de relevage de matelas
DE19542321A1 (de) * 1995-11-14 1997-05-15 Dewert Antriebs Systemtech Motorischer Verstellantrieb für Lattenroste
DE19962540A1 (de) * 1999-12-23 2001-12-20 Cimosys Ag Goldingen Elektromotorischer Möbelantrieb
DE10017978C2 (de) * 1999-12-23 2001-10-31 Cimosys Ag Goldingen Möbelantrieb

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03092443A1 *

Also Published As

Publication number Publication date
DE50304062D1 (de) 2006-08-10
EP1501390B1 (fr) 2006-06-28
DE20207070U1 (de) 2003-09-18
DK1501390T3 (da) 2006-10-30
ATE331452T1 (de) 2006-07-15
ES2268396T3 (es) 2007-03-16
WO2003092443A1 (fr) 2003-11-13

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