EP1728493A1 - Safety device for elevation beds - Google Patents

Safety device for elevation beds Download PDF

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Publication number
EP1728493A1
EP1728493A1 EP06010458A EP06010458A EP1728493A1 EP 1728493 A1 EP1728493 A1 EP 1728493A1 EP 06010458 A EP06010458 A EP 06010458A EP 06010458 A EP06010458 A EP 06010458A EP 1728493 A1 EP1728493 A1 EP 1728493A1
Authority
EP
European Patent Office
Prior art keywords
foot
drive
beds
furniture
lifting
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
EP06010458A
Other languages
German (de)
French (fr)
Other versions
EP1728493B1 (en
Inventor
Klaus Dipl.-Ing. Bellingroth
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.)
Okin Gesellschaft fur Antriebstechnik mbH
Original Assignee
Okin Gesellschaft fur Antriebstechnik mbH
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Filing date
Publication date
Application filed by Okin Gesellschaft fur Antriebstechnik mbH filed Critical Okin Gesellschaft fur Antriebstechnik mbH
Publication of EP1728493A1 publication Critical patent/EP1728493A1/en
Application granted granted Critical
Publication of EP1728493B1 publication Critical patent/EP1728493B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C19/00—Bedsteads
    • A47C19/04—Extensible bedsteads, e.g. with adjustment of length, width, height
    • A47C19/045—Extensible bedsteads, e.g. with adjustment of length, width, height with entire frame height or inclination adjustments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/018—Control or drive mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/012—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame raising or lowering of the whole mattress frame

Definitions

  • the present invention relates to a safety device for motor-driven furniture, in particular lift beds and treatment beds, in particular a safety shutdown against too far shutdown of the furniture.
  • the lowering and raising of the lying surface takes place e.g. via bed posts, toggle systems or scissor systems designed as lifting columns, which are driven by motors.
  • the actuation of the drive is often via footswitch to keep the nurses hands free for other activities, such as the support of the patient or the handling of infusion or ventilation equipment.
  • the foot switch is usually placed below the lying surface near the lying surface edge, so that it does not represent a trip hazard. He is only connected via a free, unguided cable with the drive motors for the lifting mechanism or.
  • the switch When the switch is actuated, the operator steps with his foot under the lying surface on the switch. If the lying surface is moved too far down, the foot can become pinched, so that the switch is no longer relieved and thus the lowering movement of the lifting bed or the treatment couch can no longer be stopped. This can lead to pinching of the foot of the person operating the
  • the invention is based on the object, a foot switch and to provide a switching device, which causes in the above-mentioned case, a shutdown of the drive motor of the lifting mechanism, preferably a reversal of the lifting movement to the release of the operator foot.
  • the invention is achieved by a contestbetuschiststeil for motorized furniture, especially lift beds and treatment couches, with motor-driven lifting mechanism and a foot switch for actuating the drive, the drive by loading the foot switch is effected and the foot switch has at least a second switching stage, the increase the foot actuation force can be triggered above the normal load value and the downward movement of the furniture stops.
  • the lowering movement of the furniture is reversed in an upward movement by triggering the second switching stage, as long as the time required for the triggering of the second switching stage load of the foot switch persists.
  • the two-stage circuit can be carried out so that the switching contact of the first stage is unlocked on reaching the (second) overload shift stage and thus goes back to its initial position.
  • a pole reversal can be switched simultaneously or after a short further switching path, which causes a reversal of the lowering of the furniture.
  • FIG. 1 shows by way of example a pull-down bed 1, the bed posts of which are designed as telescopic lifting columns 2, which each have rotating spindles.
  • the drive is effected by the electric motors 3, the drive axle protrudes into the bridge 4, on which two lifting columns are arranged, and from there by means of toothed belt acts on both sides of the spindles.
  • the counselbetusch Medsteil 5 has two pedals 5.1 and 5.2 in the form of spring-loaded rockers, one of which triggers the upward movement of the bed under load and the other the lowering movement.
  • the operating part is placed free standing under the bed and connected via lines 6 to the motors 3.
  • the motors are connected in parallel with respect to the switches.

Abstract

The bed (1) or bench is fitted with telescopic bars (2) at its four corners and an electric drive (3) attached to the transversal elements (4) between the legs (2) for lifting and lowering the sleeping area by extending the bars (2) with a spindle mechanism. The electric drive (3) is controlled with a foot pedal (5) comprising two separately controlled segments (5.1, 5.2). One segment (5.1) is used for activating the lifting or lowering mechanism, the second (5.2) initiates a stop function when the lowered area is moved across a limit, threatening to squash the foot of the user.

Description

Die vorliegende Erfindung betrifft eine Sicherheitseinrichtung bei motorisch bewegten Möbeln, insbesondere Hubbetten und Behandlungsliegen, insbesondere eine Sicherheitsabschaltung gegen ein zu weites Herunterfahren des Möbels.The present invention relates to a safety device for motor-driven furniture, in particular lift beds and treatment beds, in particular a safety shutdown against too far shutdown of the furniture.

Moderne Hubbetten, Behandlungsliegen und dergleichen, wie sie in Krankenhäusern und Pflegestationen zum Einsatz kommen, erlauben es, die Liegefläche nahezu in Bodennähe abzusenken. Das Absenken und Anheben der Liegefläche erfolgt z.B. über als Hubsäulen ausgebildete Bettpfosten, Kniehebel- oder Scherensysteme, die über Motoren angetrieben werden. Die Betätigung des Antriebes erfolgt oftmals über Fußschalter, um dem Pflegepersonal die Hände für andere Verrichtungen, wie die Stützung des Patienten oder die Handhabung von Infusions- oder Beatmungsgeräten frei zu halten. Der Fußschalter wird in der Regel unterhalb der Liegefläche in der Nähe der Liegeflächenkante abgestellt, so dass er keine Stolperfalle darstellt. Er ist lediglich über ein freies, ungeführtes Kabel mit dem oder den Antriebsmotoren für die Hubmechanik verbunden. Bei der Betätigung des Schalters tritt der Bedienende mit dem Fuß unter die Liegefläche auf den Schalter. Wird dabei die Liegefläche zu weit heruntergefahren, kann es zum Einklemmen des Fußes kommen, so dass der Schalter nicht mehr entlastet und damit die Absenkbewegung des Hubbettes oder der Behandlungsliege nicht mehr zum stehen gebracht werden kann. Dabei kann es zum Einquetschen des Fußes der den Schalter betätigenden Person kommen.Modern lift beds, treatment couches and the like, as used in hospitals and nursing stations, allow to lower the bed surface almost near the floor. The lowering and raising of the lying surface takes place e.g. via bed posts, toggle systems or scissor systems designed as lifting columns, which are driven by motors. The actuation of the drive is often via footswitch to keep the nurses hands free for other activities, such as the support of the patient or the handling of infusion or ventilation equipment. The foot switch is usually placed below the lying surface near the lying surface edge, so that it does not represent a trip hazard. He is only connected via a free, unguided cable with the drive motors for the lifting mechanism or. When the switch is actuated, the operator steps with his foot under the lying surface on the switch. If the lying surface is moved too far down, the foot can become pinched, so that the switch is no longer relieved and thus the lowering movement of the lifting bed or the treatment couch can no longer be stopped. This can lead to pinching of the foot of the person operating the switch.

Der Erfindung liegt die Aufgabe zugrunde, einen Fußschalter und eine Schalteinrichtung anzugeben, die in dem vorstehend erwähnten Falle eine Abschaltung des Antriebsmotors der Hubmechanik, vorzugsweise eine Umkehr der Hubbewegung bis zur Freigabe des Bedienerfußes, bewirkt.The invention is based on the object, a foot switch and to provide a switching device, which causes in the above-mentioned case, a shutdown of the drive motor of the lifting mechanism, preferably a reversal of the lifting movement to the release of the operator foot.

Die Erfindung wird durch ein Fußbetätigungsteil für motorisch bewegbare Möbel, insbesondere Hubbetten und Behandlungsliegen, mit motorisch angetriebener Hubmechanik und einem Fußschalter zur Betätigung des Antriebes gelöst, wobei der Antrieb durch Belastung des Fußschalters bewirkbar ist und der Fußschalter zumindest eine zweite Schaltstufe aufweist, die bei Erhöhung der Fußbetätigungskraft über den normalen Belastungswert auslösbar ist und die Abwärtsbewegung des Möbels stoppt.The invention is achieved by a Fußbetätigungsteil for motorized furniture, especially lift beds and treatment couches, with motor-driven lifting mechanism and a foot switch for actuating the drive, the drive by loading the foot switch is effected and the foot switch has at least a second switching stage, the increase the foot actuation force can be triggered above the normal load value and the downward movement of the furniture stops.

Vorzugsweise wird durch Auslösung der zweiten Schaltstufe die Absenkbewegung des Möbels in eine Aufwärtsbewegung reversiert, solange die für die Auslösung der zweiten Schaltstufe erforderliche Belastung des Fußschalters andauert.Preferably, the lowering movement of the furniture is reversed in an upward movement by triggering the second switching stage, as long as the time required for the triggering of the second switching stage load of the foot switch persists.

Vorzugsweise werden als elektrische Antriebe Niedervolt-Gleichstrommotoren eingesetzt.Preferably, low-voltage direct-current motors are used as electric drives.

Die zweistufige Schaltung kann so erfolgen, dass der Schaltkontakt der ersten Stufe bei Erreichen der (zweiten) Überlastschaltstufe entrastet wird und so in seine Ausgangsstellung zurückgeht. Dabei kann gleichzeitig oder nach kurzem weiterem Schaltweg eine Polumkehr geschaltet werden, die eine Reversierung der Absenkbewegung des Möbels bewirkt.The two-stage circuit can be carried out so that the switching contact of the first stage is unlocked on reaching the (second) overload shift stage and thus goes back to its initial position. In this case, a pole reversal can be switched simultaneously or after a short further switching path, which causes a reversal of the lowering of the furniture.

Ein Ausführungsbeispiel der Erfindung wird im Folgenden anhand der Zeichnung näher beschrieben. In der Zeichnung zeigt:

Fig.1
eine perspektivische Darstellung eines Hubbettes mit Fußbetätigungsteil.
An embodiment of the invention will be described below with reference to the drawing. In the drawing shows:
Fig.1
a perspective view of a lift bed with Fußbetätigungsteil.

Fig.1 zeigt beispielhaft ein Hubbett 1, dessen Bettpfosten als Teleskop-Hubsäulen 2, die jeweils Drehspindeln aufweisen, ausgebildet sind. Der Antrieb wird durch die Elektromotoren 3 bewirkt, deren Antriebsachse in die Brücke 4, auf der je zwei Hubsäulen angeordnet sind, hineinragt und von dort mittels Zahnriemen nach beiden Seiten auf die Spindeln wirkt. Das Fußbetätigungsteil 5 weist zwei Pedale 5.1 und 5.2 in Form federbelasteter Wippen auf, von denen eines bei Belastung die Aufwärtsbewegung des Bettes auslöst und das andere die Absenkbewegung. Das Betätigungsteil ist frei stehend unter den Bett aufgestellt und über Leitungen 6 mit den Motoren 3 verbunden. Dabei sind die Motoren bezüglich der Schalter parallel geschaltet.1 shows by way of example a pull-down bed 1, the bed posts of which are designed as telescopic lifting columns 2, which each have rotating spindles. The drive is effected by the electric motors 3, the drive axle protrudes into the bridge 4, on which two lifting columns are arranged, and from there by means of toothed belt acts on both sides of the spindles. The Fußbetätigungsteil 5 has two pedals 5.1 and 5.2 in the form of spring-loaded rockers, one of which triggers the upward movement of the bed under load and the other the lowering movement. The operating part is placed free standing under the bed and connected via lines 6 to the motors 3. The motors are connected in parallel with respect to the switches.

Claims (3)

Fußbetätigungsteil für motorisch bewegbare Möbel, insbesondere Hubbetten (1) und Behandlungsliegen, mit motorisch angetriebener Hubmechanik und einem Fußschalter zur Betätigung des Antriebes, wobei der Antrieb durch Belastung des Fußschalters bewirkbar ist, dadurch kennzeichnet, dass der Fußschalter zumindest eine zweite Schaltstufe aufweist, die bei Erhöhung der Fußbetätigungskraft über den normalen Belastungswert hinaus auslösbar ist und die Abwärtsbewegung des Möbels stoppt.Foot operating part for motorized furniture, in particular lift beds (1) and treatment couches, with motor-driven lifting mechanism and a foot switch for actuating the drive, wherein the drive can be effected by loading the foot switch, characterized in that the foot switch has at least a second switching stage at Increasing the Fußbetätigungskraft beyond the normal load value is triggered and the downward movement of the furniture stops. Fußbetätigungsteil nach Anspruch 1, wobei durch Auslösung der zweiten Schaltstufe der Antrieb reversierbar ist, indem die Ausgangsspannung umgepolt wird, solange die für die Auslösung der zweiten Schaltstufe erforderliche Fußbetätigungskraft andauert.Foot control part according to claim 1, wherein by triggering the second switching stage, the drive is reversible by the output voltage is reversed, as long as required for the triggering of the second switching stage Fußbetätigungskraft persists. Fußbetätigungsteil nach Anspruch 1 oder 2, wobei zur Schaltung der beiden Pole des Antriebes je ein Relais vorgesehen ist.Foot control part according to claim 1 or 2, wherein a relay is provided for switching the two poles of the drive.
EP06010458A 2005-05-30 2006-05-20 Safety device for elevation beds Expired - Fee Related EP1728493B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005008523U DE202005008523U1 (en) 2005-05-30 2005-05-30 Height adjustable bed or therapeutic bench, comprising safety function for downwards movement

Publications (2)

Publication Number Publication Date
EP1728493A1 true EP1728493A1 (en) 2006-12-06
EP1728493B1 EP1728493B1 (en) 2009-03-11

Family

ID=35034504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06010458A Expired - Fee Related EP1728493B1 (en) 2005-05-30 2006-05-20 Safety device for elevation beds

Country Status (5)

Country Link
US (1) US20070180620A1 (en)
EP (1) EP1728493B1 (en)
JP (1) JP2006334403A (en)
DE (2) DE202005008523U1 (en)
DK (1) DK1728493T3 (en)

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DE102005005471A1 (en) * 2005-02-04 2006-08-24 Barthelt, Hans-Peter, Dipl.-Ing. Care bed with balancing circuit
JP2009193323A (en) 2008-02-14 2009-08-27 Sharp Corp Display apparatus
CA2743223C (en) * 2008-11-11 2016-05-17 Starwove Pty Ltd An infant bed
KR101088706B1 (en) 2009-05-04 2011-12-06 이혜린 A Table for Convenient Cleaning
KR101056176B1 (en) 2009-05-04 2011-08-16 이혜린 Easy to clean table
US20120167299A1 (en) * 2011-01-05 2012-07-05 Peter Tarquinio Crib frame with lifting device
US9013313B2 (en) * 2011-01-18 2015-04-21 Alan Paine Bed pre-exit patient monitor
GB2520507B (en) * 2013-11-21 2017-03-01 Huntleigh Technology Ltd Footswitch Assembly
CN103908389A (en) * 2014-03-21 2014-07-09 无锡怡生医疗设备有限公司 Portable wireless control device for operating table
CN104116341B (en) * 2014-08-05 2016-09-21 萧永明 The bed body of adjustment height and installation method
CN104433486B (en) 2014-10-29 2018-03-06 嘉兴赛诺机械有限公司 Electric drive mechanism and electric furniture
JP5988528B1 (en) * 2016-04-07 2016-09-07 有限会社渥美不動産アンドコーポレーション Assembled traveling cart
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Also Published As

Publication number Publication date
US20070180620A1 (en) 2007-08-09
JP2006334403A (en) 2006-12-14
EP1728493B1 (en) 2009-03-11
DE502006003058D1 (en) 2009-04-23
DK1728493T3 (en) 2009-06-02
DE202005008523U1 (en) 2005-09-15

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