EP2240050A1 - Mécanisme d'entraînement double à moteur électrique pour meubles - Google Patents

Mécanisme d'entraînement double à moteur électrique pour meubles

Info

Publication number
EP2240050A1
EP2240050A1 EP08859236A EP08859236A EP2240050A1 EP 2240050 A1 EP2240050 A1 EP 2240050A1 EP 08859236 A EP08859236 A EP 08859236A EP 08859236 A EP08859236 A EP 08859236A EP 2240050 A1 EP2240050 A1 EP 2240050A1
Authority
EP
European Patent Office
Prior art keywords
housing
limit switch
electromotive furniture
double drive
spindle
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
EP08859236A
Other languages
German (de)
English (en)
Other versions
EP2240050B1 (fr
Inventor
Andreas Heinrichs
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.)
Dewertokin GmbH
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 EP2240050A1 publication Critical patent/EP2240050A1/fr
Application granted granted Critical
Publication of EP2240050B1 publication Critical patent/EP2240050B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/042—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by means of screw-and-nut mechanism
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y10T74/18688—Limit stop

Definitions

  • the invention relates to an electromotive furniture double drive, which has a housing, wherein the housing is formed at least in two parts and U-shaped Ausmon ⁇ ngen has, in which pivotable relative to the housing
  • Intervening shafts which are operatively connected to at least one furniture component to be adjusted, and wherein the U-shaped recesses covers, which are positively and preferably in the longitudinal direction of the shafts mountable and hen for fixing the shafts with the housing in operative connection
  • the Furniture double drive is provided with at least one drive motor which is drivingly coupled with a Drehierereduziergetriebe. and wherein by means of the Drehierereduziergcrete a secured against rotation spindle is movable in its longitudinal direction, and wherein at least the Drehierereduziergctriebe and the spindle are arranged in the housing, and in which the Endsteliieux the spindle are limited by at least one limit switch.
  • the housing of the electromotive furniture Doppelantricbs is formed at least in two parts, wherein it has U-shaped recesses, in which engage relative to the housing pivotable shafts, which are operatively connected to at least one furniture component to be adjusted, and wherein the U-shaped recesses have covers, which can be mounted in a form-fitting and preferably longitudinal direction of the shafts and are in communication with the housing for fixing the shafts.
  • the double drive is equipped with two drive motors, which are arranged laterally on the housing in motor pots.
  • the furniture double drive hereafter referred to as a double drive, is equipped with two speed reducers, which are drive-coupled with the corresponding drive motor.
  • a spindle With the output member of each Wheelierereduziergetriebes a spindle is firmly connected to the secured against rotation Spindclmuttcr is attached.
  • This Spindeimuttcr forms Abtricbsglied each ⁇ ntricbszuges the double drive, for example, via a fixedly mounted on the spindle nut lifting a connected thereto furniture component is adjusted.
  • the dual drive is equipped with a drive motor and a speed reduction gear.
  • This speed reduction gear is designed so that a spindle secured against rotation can be moved in its longitudinal direction.
  • This spindle then forms the gliedbtricbsglied the Doppclantriebcs.
  • the two end faces can be in drive connection with components to be adjusted.
  • the limit switches are inserted in a so-called Bndschalterleisie with U-shaped cross-section.
  • the center leg of this limit switch is provided with a hole row so that the limit switches can be placed in different positions in the limit switch strips.
  • the latter embodiment has proven itself, but it is disadvantageous that a relatively high number of components for the function of the furniture drive is necessary.
  • the invention has for its object to make an electric motor Mobel Doppelantricb the type described in more detail so that the number of components is minimized, which can be easily and easily mounted, saving material is produced by the internal force curves are optimized and the power transmission paths are formed short by the walls of the housing, and that nevertheless the reliability is given.
  • the stated object is achieved by a pressure piece is fixedly mounted on the spindle on the side facing away from the Drehierereduziergetriebe, which is in operative connection with a firmly attached to a movable furniture component adjustment.
  • the output member of the Drehierereduziergetriebes is designed as a rotary body with an internal thread, which is in engagement with the external thread of the spindle. Since the pressure piece can be formed very short, it can be driven in the first Endlagensannon up to the Drchierereduzicrgetriebe, so that the engine with the speed reduction gear attached thereto in the smallest possible pitch can be arranged on the adjusting element of the movable furniture component, so that the high Adjustment can be derived by a relatively small housing portion of the housing walls. Since now a relatively large cavity is formed in the housing between the motors, a corresponding space-consuming electrical control of the motors can be used here.
  • the Verstcllelement is when using the double drive for a slatted on the shaft of the backrest or the foot firmly attached adjusting lever.
  • a second spindle based on the installation position of the furniture Doppelantriebcs. preferably is inclined in accordance with such that the central longitudinal axes of the spindles form an obtuse angle.
  • a force is transmitted to the adjusting element which extends in the direction of the central longitudinal axis of the spindle.
  • both spindles of the double drive are inclined relative to the horizontal, wherein the central longitudinal axes of the spindles are at an obtuse angle, for example, assumes an angle of 170 degrees to each other.
  • the klotzartigc pressure piece is designed as a hollow body. Because then a material-saving design is e ⁇ eicht.
  • the klolzartigc pressure piece is made of a suitable plastic.
  • the Möbcl Doppelantricb is preferably used in the home, is provided to reduce the noise arising during adjustment that at least the Drchierercduzicrgctriebc is at least partially enveloped by a damping body or that this damping body is attached thereto. This dampens the so-called body sound, which extends only minimally from the noise generating motor to the housing.
  • the Drchierercduziergetriebe is designed as a worm drive. and that the worm wheel is rotatably connected to at least one nut. whose threads are in engagement with those of the spindle, or that the
  • Nut forms a one-piece part with the worm wheel
  • the worm wheel and the nut are advantageously made of a plastic, preferably made of POM. So that the width of the housing is as small as possible, and that the material requirement is minimized, it is provided that the drive motor is inserted into a motor pot. which is externally flanged to a Scitenwand of the housing or formed integrally with the housing.
  • the output element and / or the housing has a setting device by means of which the position of the sound pressure of the at least one limit switch can be adjusted from outside the housing.
  • the Einslellvorricht ⁇ ng associated wall of the housing has an opening through which an actuating element of the adjusting device is feasible.
  • the Einslellvorraum is then coupled to the threshold of the at least one limit switch such that the respective Heidelbergschweüc the at least one limit switch against the Drchiererc- duciergetriebe at different intervals can be fixed.
  • the limit switch for example, in the form of a housing-like Endschallerauihahmc is designed. that with appropriate handling, a shift or a setting is possible. wherein after the Vcischiebung the position of the limit switch receptacle and thus also the limit switch is secured.
  • At least one limit switch is used in a housing-like limit switch receptacle, and that the associated wall of the housing in adjacent to the limit switch receptacle
  • the output element and / or the housing has an adjusting device, and that the wall of the housing associated with the adjusting device has a cutout, wherein the adjusting device is coupled to the switching of the at least one limit switch.
  • the respective sound wave of the at least one limit switch gcgcnübcr the Drchierercduzicrgetriebe can be fixed at different intervals.
  • the at least one limit switch is arranged on the Abtricbselement or on a movable element with the Abtricbselement
  • each limit switch receptacle is displaceably guided in a guide adjoining the wall of the housing.
  • edge regions delimiting each slot in the wall of the housing have profilings, and that the final shift cable receptacle is deleted with at least one corresponding gene profiling.
  • these mutually corresponding profilings can also be viewed as Rastmittcl.
  • the Schlupppstange is formed as a flat bar with at least one longitudinal groove. into the one Kihrungssteg the
  • End shift recording engages.
  • the longitudinal groove in conjunction with the guide bar ensures that the Schlupppstange is correct position to the respective limit switch, so that the plunger are also fully actuated to the circuit. So that a gentle operation of the plunger of the limit switch is ensured.
  • Schleppstangc at the respective limit switch facing the free end has a Schrägflambac, which forms the contact surface.
  • a Doppeiantrieb is used to adjust the adjustable parts of a slatted base.
  • a so-called articulated lever is rotatably mounted so that the free end of this articulation lever always has contact with Abtricbselcment the furniture drive.
  • a block-like slider is placed firmly on the end of the spindle facing away from the reduction gear. This slide could be formed in a material-saving manner as a hollow body, wherein the slide and / or the spindle form the Abtriebselcmcnt.
  • the tow bar is attached to the hollow body or on ⁇ bt ⁇ ebsciemcnt and is at a distance from the spindle.
  • the tow bar is fixed to one or more threads. which are facing away from the reduction gear.
  • a scale is arranged on the outside of the housing adjacent to the slot. For example, this could display the stroke in numbers, making it easier for the user to adjust,
  • the output element and / or the housing has an adjustment device.
  • the adjustment can be adjusted either directly manually or by means of a tool.
  • the adjustment of the outside of the housing can be freely accessible or be covered by a cover to prevent example, the ingress of moisture into the housing interior.
  • the plunger actuator or the limit switch on actuation by the Anlauffiä- che on a switching threshold, which switches the at least one switching contact of the limit switch.
  • the Heidelbergschwcllc of the at least one limit switch is coupled to the adjusting device such that the respective Heidelbergschwclle the at least one limit switch relative to the Drehierereduziergetriebe can be fixed at different intervals.
  • the distance between the contact surface and that limit switch is set, which switches off the electric motor in the fully actuated position or in the fully extended position of the furniture component.
  • the maximum lifting position of the connected furniture component can be adjusted so that the lifting movement of, for example, the head part or the foot part of a slatted frame is limited.
  • At least one limit switch is coupled to at least one adjusting device or fixedly connected to it.
  • the plunger of the at least one limit switch is coupled to or fixedly connected to at least one adjusting device.
  • the linearly movable ablation is tricbsclcmcnt.
  • a spindle or in the form of a displaceable but secured against rotation slider or in the form of a Schleppslange coupled to at least one Einstcllvo ⁇ ichlung or firmly connected to her.
  • an embodiment consists of a combination of the above embodiments.
  • this is formed by a limit switch receptacle with positively locking positions.
  • Other embodiments may have clamping screws or adjusting screws, so that a stufcnlose adjustment is formed.
  • the insert device may be integrated with, attached to, or seated on or in the housing of the dual clutch drive.
  • the adjustment device can also be attached to or in the drive element, inserted therein or coupled thereto.
  • the at least one limit switch is placed on a printed circuit board, on soft continue
  • Control elements for controlling the at least one electric motor for example in the form of branch lines, electrical connections or in the form of electromechanical switches are placed.
  • at least one limit switch associated with the printed circuit board is coupled to at least one: inserting device or fixedly connected to it.
  • FIG. 1 shows an exemplary embodiment of an inventive furniture
  • Figure 2 is a Tcilansicht the housing of the furniture Doppclantricbcs and
  • FIG. 3 shows a detail showing the limit switch recording in perspective view.
  • the furniture double belt 10 illustrated in FIG. 1 is equipped with an electric motor drive motor 11 and a speed-reducing gear 12.
  • This Drchierercduzicrgetricbe 12 consists of a worm and a meshing worm wheel, which is firmly connected to a smntriebsmuücr 13, Contrary to this representation, the bore of the worm wheel as
  • the drive nut 13 is non-rotatably connected to a spindle 14. If this drive nut 13 were omitted, the spindle 14 is non-rotatably inserted into the internally threaded bore of the worm wheel. It can be seen from FIG. 1 that, when the drive motor is switched on, the spindle 14 secured against rotation displaces in its longitudinal direction, the direction of displacement being dependent on the direction of rotation of the worm wheel.
  • a block-like slider 15 is fixedly mounted on the Drchierercduzicrgetriebe 12 facing away from the end of the spindle 14, which is designed as a hollow body.
  • This block-like slider 15 cooperates with an anvil lever 23, which is mounted non-rotatably on a shaft of a furniture component to be adjusted.
  • anvil lever 23 which is mounted non-rotatably on a shaft of a furniture component to be adjusted.
  • a unilaterally open Endschalterholznahrne 16 is arranged, which is open in the direction of the wall of the housing.
  • a limit switch 17 is inserted.
  • This limit switch 17 is equipped in a known manner with plungers to switch the drive motor 1 1.
  • a tow bar 18 is provided, which has at the end of the switch 1 7 facing an inclined or contact surface.
  • FIG. 2 shows the end sound recording 16 as a detail.
  • the limit switch 17 inserted therein is not visible.
  • FIG. 2 clearly shows that the limit switch receptacle 16 on the side facing the housing wall is provided with a spring web 19 is provided, which can be deformed by the action of force from the outside so that it lies within the housing.
  • On both longitudinal sides of the spring bar 19 is provided with an arrow-shaped tip.
  • Spring bar 19 is slidably guided.
  • the slot 20 delimiting edge regions of the housing are provided with a plurality of triangular profiles in which optionally the p-shaped tip of the spring bar 19 engages.
  • the housing is provided with a scale corresponding to the triangular profilings. This shows that in the illustrated embodiment, the linear displacement of the
  • Spindle 14 can be increased or decreased by 23 mm. For the user, therefore, it is immediately apparent to what value he can change the way of the spindle 14 after pressing the spring bar 19.
  • the tow bar 18 may also be attached directly to the spindle 14.
  • the tow bar 1 8 could also be formed as a telescope, wherein the extendable tube then follows the movement of the spindle 14.
  • FIG. 2 also shows that the limit switch receptacle 16 on the spring bar
  • the invention is not limited to illustrated embodiment. It is essential that a pressure block 15 is placed on the spindle 14, and that the spindle 14 is inclined with respect to the horizontal for optimum power transmission. so that at the beginning of a Vcrstcllterrorism a force acting on the Verstelleiement 23 which extends in the longitudinal direction of the spindle 34. It is also important that the speed reducer transmission 12 is body-sound-damped by means of a damping jacket.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Transmission Devices (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Legs For Furniture In General (AREA)

Abstract

Mécanisme d'entraînement double à moteur électrique pour meubles (10), comprenant : un carter qui est équipé d'un moteur d'entraînement (11) et qui est accouplé, techniquement associé, avec un réducteur de vitesse de rotation (12), et pour lequel, au moyen dudit réducteur de vitesse (12), une broche (14) bloquée en rotation peut se déplacer en direction longitudinale, et au moins le réducteur de vitesse de rotation (32) et la broche (14) sont logés dans le carter, cependant que les positions de fin de course de chaque broche (14) sont limitées par au moins un interrupteur de fin de course (17). L'invention a pour but de configurer ledit mécanisme de manière à minimiser le nombre de composants et, en outre, à avoir une construction simple et d'un montage facile, avec économie de matériau, les profils de force internes étant, par ailleurs optimisés et les parcours de transfert de force étant configurés de faible longueur par les parois du carter. A cet effet, l'invention est caractérisée en ce que sur les broches (14) situées du côté opposé au réducteur de vitesse de rotation (12), est disposée une pièce de pression (15) qui est en liaison coopérante avec un élément de réglage (23) monté fixe sur un composant mobile du meuble. En outre, la broche (14) est inclinée par rapport à l'horizontale, par rapport à la position de montage de l'entraînement double, cependant que la seconde broche est également inclinée par rapport à l'horizontale, de telle façon que l'angle inclus soit un angle obtus. Le mécanisme d'entraînement double à moteur électrique pour meubles selon l'invention est approprié de préférence pour le réglage du dossier et des pieds d'un ensemble à lattes mobiles.
EP08859236.5A 2007-12-13 2008-12-04 Mécanisme d'entraînement double à moteur électrique pour meubles Active EP2240050B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200720017534 DE202007017534U1 (de) 2007-12-13 2007-12-13 Elektromotorischer Möbel-Doppelantrieb
PCT/EP2008/066789 WO2009074505A1 (fr) 2007-12-13 2008-12-04 Mécanisme d'entraînement double à moteur électrique pour meubles

Publications (2)

Publication Number Publication Date
EP2240050A1 true EP2240050A1 (fr) 2010-10-20
EP2240050B1 EP2240050B1 (fr) 2015-12-02

Family

ID=40451146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08859236.5A Active EP2240050B1 (fr) 2007-12-13 2008-12-04 Mécanisme d'entraînement double à moteur électrique pour meubles

Country Status (8)

Country Link
US (1) US8763483B2 (fr)
EP (1) EP2240050B1 (fr)
JP (1) JP2011506871A (fr)
CN (1) CN101896095B (fr)
DE (1) DE202007017534U1 (fr)
DK (1) DK2240050T3 (fr)
ES (1) ES2561036T3 (fr)
WO (1) WO2009074505A1 (fr)

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DE102012219113A1 (de) * 2011-11-09 2013-05-16 Dewertokin Gmbh Elektromotorischer Linearantrieb, insbesondere zum Verstellen von Liege- und Sitzmöbeln
DE102011086037A1 (de) * 2011-11-09 2013-05-16 Dewertokin Gmbh Elektromotorischer Linearantrieb, insbesondere zum Verstellen von Liege- und Sitzmöbeln
TWM473004U (zh) * 2013-11-28 2014-02-21 Timotion Technology Co Ltd 線性致動器
DK3190927T3 (en) * 2014-09-09 2019-08-19 Linak As Linear dual actuator
DE202015101317U1 (de) * 2015-03-13 2016-06-14 Dewertokin Gmbh Elektromotorischer Möbelantrieb
DE202015101316U1 (de) * 2015-03-13 2016-06-15 Dewertokin Gmbh Elektromotorischer Doppelantrieb
CN106724344A (zh) * 2017-02-24 2017-05-31 邢川明 能调睡角的床及其床头靠板装置
DE102019113392A1 (de) 2019-05-20 2020-11-26 Hettich Franke Gmbh & Co. Kg Elektromotorische Verstelleinheit zur Neigunsverstellung eines Stützteils eines Sitzmöbels und Sitzmöbel mit einer elektromotorischen Verstelleinheit
TWI803397B (zh) * 2022-07-21 2023-05-21 施權航 電動床

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Also Published As

Publication number Publication date
US8763483B2 (en) 2014-07-01
JP2011506871A (ja) 2011-03-03
DE202007017534U1 (de) 2009-04-23
DK2240050T3 (en) 2016-02-15
ES2561036T3 (es) 2016-02-24
US20110025150A1 (en) 2011-02-03
EP2240050B1 (fr) 2015-12-02
WO2009074505A1 (fr) 2009-06-18
CN101896095A (zh) 2010-11-24
CN101896095B (zh) 2012-10-10

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