EP2095803B1 - Immobilising brake for furniture with rollers, in particular beds and bed with such an immobilising brake - Google Patents

Immobilising brake for furniture with rollers, in particular beds and bed with such an immobilising brake Download PDF

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Publication number
EP2095803B1
EP2095803B1 EP08002250A EP08002250A EP2095803B1 EP 2095803 B1 EP2095803 B1 EP 2095803B1 EP 08002250 A EP08002250 A EP 08002250A EP 08002250 A EP08002250 A EP 08002250A EP 2095803 B1 EP2095803 B1 EP 2095803B1
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EP
European Patent Office
Prior art keywords
immobilizing
brake
immobilizing brake
state
coupling element
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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.)
Not-in-force
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EP08002250A
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German (de)
French (fr)
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EP2095803A1 (en
Inventor
Carlos Bernal
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Wissner Bosserhoff GmbH
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Wissner Bosserhoff GmbH
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Priority to ES08002250T priority Critical patent/ES2388569T3/en
Priority to EP08002250A priority patent/EP2095803B1/en
Publication of EP2095803A1 publication Critical patent/EP2095803A1/en
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Publication of EP2095803B1 publication Critical patent/EP2095803B1/en
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    • 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
    • A61G7/05—Parts, details or accessories of beds
    • 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
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/0528—Steering or braking devices for castor wheels

Definitions

  • the present invention relates to a parking brake for furniture with rollers, especially beds, with which in a first state of the parking brake the furniture against rolling are detectable and in a second state of the parking brake rollers are rotatable.
  • a bed with such a parking brake is from the European patent application, which is under the publication number EP 1 645 257 A1 was published known.
  • the parking brake disclosed in this patent application has at least one one-part or multi-part locking means which is suitable and arranged for fixing the bed.
  • the parking brake has at least one single- or multi-part actuating means with which the parking brake can be transferred from the first state to the second state and vice versa.
  • a special feature of the European patent application with the publication number EP 1 645 257 A1 disclosed parking brake is that the actuating means can be actuated by a force in the same direction to release the brake and locking the brake.
  • An actuating pedal of the actuating means can be pressed down both for releasing the brake and for setting the brake.
  • By a mechanism, in particular by the locking means is then achieved that after actuation of the actuating means, the parking brake in the then assumed state remains until the next operation.
  • the mechanism with which the retention of the parking brake in the assumed state is achieved after a discharge of the actuating means is very complex. It consists of a large number of individual parts that interact with each other.
  • the present invention has for its object to improve a parking brake of the type mentioned so that the whereabouts of the parking brake is secured in the occupied state after an operation until the next operation with simple, commercially available components.
  • the locking means comprises a lockable gas spring which is blocked in the first state of the parking brake and which is blocked in the second state of the parking brake and which is suitable and adapted when changing the parking brake from first state to be solved in the second state.
  • Blockable springs in the context of the invention are those springs whose length can be blocked in at least two different states. By releasing the blocking, the length of a lockable spring can be changed.
  • the principle of a lockable spring is known, for example, from ballpoint pens, in which by arrangements with lockable springs a ballpoint pen refill can be pushed out of the ballpoint pen housing by repeated pressing on a release button, which protrudes from a ballpoint pen housing at the front or can be pulled into the ballpoint pen housing.
  • Lockable springs are also known as lockable gas springs.
  • Blockable gas springs are available as commercially available components on the market and for example from the document DE 42 36 150 A1 known. Stabilus GmbH offers such blockable gas springs, for example, under the name "Bloc-O-Lift”.
  • the length of the gas spring is different in the first state and in the second state of the parking brake.
  • the gas spring may be suitable and arranged by an actuation, i. H. a force to be released in the same direction and be brought to a different length.
  • the gas spring may comprise a cylinder and a piston, wherein the piston is slidably disposed in the cylinder.
  • the gas spring is preferably designed so that the gas spring can be released by a force in the direction of the piston rod to be transferred to another state or in another position.
  • the actuating means may be coupled to the piston rod or to the cylinder for the purpose of releasing the gas spring and transferring the gas spring to another state.
  • the locking means may further comprise at least one pressure element which is suitable and adapted to block the rollers in the first state of the parking brake and to release the roller in the second state of the parking brake.
  • the pressure element can be suitable and arranged to be displaced between a first position in the first state of the parking brake and a second position in the second state of the parking brake.
  • the locking element may further comprise a coupling element, via which the piston rod or the cylinder of the gas spring is coupled to the pressure element.
  • the coupling element is pivotally mounted and adapted and adapted to be pivoted between a first position in the first state of the parking brake and a second position in the second state of the parking brake.
  • the pivot position is preferably determined by the length of the gas spring.
  • the cylinder or the piston rod is pivotally connected to a coupling element.
  • the coupling element of a parking brake according to the invention may have a guide contour for guiding the pressure element, on which the pressure element preferably bears against the pre-pressure of a spring element.
  • the spring element can thus be suitable and arranged for pressing the pressure element on the guide contour of the coupling element.
  • the actuating means of a parking brake according to the invention may be coupled via the coupling element with the pressure element to transmit actuating forces from the actuating means to the pressure element.
  • the actuating means may be coupled via the Koppeieiement with the gas spring to transmit a force to the gas spring to release the blockage.
  • the actuating means is preferably hingedly connected to the coupling element.
  • the actuating means of a parking brake may comprise an actuating lever or an actuating pedal and a transmission element for transmitting an actuating force from the actuating lever or actuating pedal to the coupling element.
  • the coupling element may be designed in several parts and comprise a first coupling part, a connecting part and a second coupling part, which are preferably rigidly connected to each other.
  • the actuating means may be hingedly connected to the first coupling part of the coupling element.
  • the gas spring is preferably connected to the second coupling part of the coupling element.
  • the guide contour may be provided on the second coupling part of the coupling element.
  • a bed according to the invention in particular a nursing bed, can have footrests resting on castors and at least one parking brake of the aforementioned type.
  • Each two rollers can each be assigned to a parking brake.
  • Such a parking brake may then have, in addition to the pressure element, a further pressure element, wherein each pressure element is associated with a respective role.
  • Each parking brake may also have to the coupling element another coupling element, and the further coupling element may be assigned to the further pressure element.
  • the two coupling elements of each parking brake can be coupled to each other via a respective power transmission member.
  • the parking brake may comprise, in addition to the actuating means, a further actuating means, and the further actuating means may be associated with the further coupling element.
  • FIG. 1 illustrated footrest A of a bed according to the invention rests on rollers B1, which are mounted on arms A1 of the footrest.
  • the arms A1 are connected to lower ends A2 of lifting columns, the lifting cylinder A4 in the FIG. 1 are only indicated.
  • the lower end A2 of the lifting columns is connected to a connecting plate A3, whereby the right half and a left half of the footrest are held together.
  • a cross member A5 On the movable upper end of the lifting cylinder A4 rests a cross member A5, on which a bed frame or a mattress frame of the bed according to the invention can rest.
  • the rollers B1 are part of a roller assembly B, which also includes a roller holder B2 in addition to the roller B1, in which the roller B1 is rotatably supported.
  • the roller holder B2 is in turn mounted rotatably about a vertical axis on the arm A1 of the footrest of the bed.
  • a pin is slidably mounted, which is hereinafter referred to as pressure element 11.
  • This pressure element 11 can be displaced between a position in which it presses on the roller B1 and thereby blocks a rotation of the roller B1. In another position, the pressure element 11 has a distance from the roller B1, so that they can rotate freely relative to the pressure element 11.
  • a spring element not shown, the pressure element 11 is pressed into the position in which the roller B1 is not blocked.
  • the pressure element 11 is part of the locking means 1 of the parking brake C of the bed according to the invention.
  • the pressure element 11 also include a coupling element 12 and a gas spring 10 to the locking means 1.
  • the locking means 1 is thus formed in several parts.
  • the coupling element 12, which is also designed in several parts, is pivotally mounted on the arm A1 of the footrest A.
  • the coupling element 12 has a first coupling part 120, a connecting part 121 and a second coupling part 122, which are rigidly connected to each other.
  • the connecting part 121 also forms an axis of rotation, with which the coupling element 12 is pivotally mounted on the arm A1.
  • the second coupling part 122 has a guide contour 1220 on which the pressure element 11 constantly bears due to the spring pressure of the spring element, not shown. Since the guide contour in a region a greater distance from the pivot axis of the Coupling element 12 has as in another area, can be moved by pivoting the second coupling part 122, the pressure element 11 from the one position in which the roller B1 can rotate freely to another position in which the roller B1 is blocked.
  • roller B1 In the presentation of the FIG. 3 and the FIG. 4 is the roller B1 is not blocked, that is, the pressing member 11 is in an upper position, while in the illustration of the FIG. 5 and the FIG. 6 the roller B1 is blocked and the pressure element 11 is pressed by the guide contour 1220 against the roller B1.
  • the coupling element 12 is connected to the actuating means 2.
  • the actuating means 2 has an actuating pedal 20 which is pivotally connected to a transmission element 21 of the actuating means 2.
  • the transmission element 21 is pivotally connected to the coupling element 12.
  • the operating pedal 20 is pivotally mounted on the arm A1 of the footrest A. When the operation pedal 20 is pivoted downward, the operation force acting on the operation pedal is transmitted from the operation pedal 20 to the transmission member 21 and from the transmission member 21 to the coupling member 12. Characterized the coupling element is pivoted to its first position or its second position and at the same time causes an actuation of the gas spring 10, which changes its length.
  • the lockable gas spring 10 has a cylinder 101 which is pivotally mounted on a cantilever A11 of the Outrigger A1 is attached.
  • the gas spring also has a piston rod 102 which is connected to a piston in the cylinder 101. The end of the piston rod 102 is pivotally connected to the second coupling part 122 of the coupling element 12.
  • the lockable gas spring 10 is actuated by an axial pressure on the piston rod.
  • the piston rod is displaced.
  • the piston rod is thereby brought in each case in a blocked position.
  • the piston rod can be released from this blocked position and transferred to the other blocked position.
  • the distance between the articulation point of the piston rod 102 and the articulation point of the cylinder 101 changes.
  • the second coupling part or the entire coupling element is thereby blocked and held in its various positions by the gas spring .
  • an axial force is exerted on the piston rod 102 to release the blockage and pivot the coupling element 12 to its other position, thereby releasing or tightening the parking brake.
  • the parking brake has a power transmission member 3, which leads to a further actuating means 2a and further locking means 1 a on the other side of the footrest.
  • the further locking means 1a and the further actuating means 2a are formed analogously to the previously described locking means 1 and the actuating means 2 described so far.
  • the locking means 1a do not comprise a gas spring 10, since the blockage by the gas spring 10 on one side of the footrest is sufficient for blocking the Coupling elements 12 and the further coupling element 12a on both sides of the footrest is.
  • the further coupling element which likewise has a first coupling part 120a, a second connecting part 121a and a second coupling part 122a with a guide contour 1220a, thus also presses on a pressure element 11a to block the roller B1.
  • the further actuating means 2 comprise an actuating pedal 20a and a transmission element 21 a. These allow actuation of the parking brake also from the opposite side of the footrest.
  • the parking brake of the bed can thus be operated from both sides of the footrest, ie from both sides of the bed.

Description

Die vorliegende Erfindung betrifft eine Feststellbremse für Möbel mit Rollen, insbesondere Betten, mit welcher in einem ersten Zustand der Feststellbremse das Möbel gegen ein Wegrollen feststellbar sind und in einem zweiten Zustand der Feststellbremse die Rollen drehbar sind.The present invention relates to a parking brake for furniture with rollers, especially beds, with which in a first state of the parking brake the furniture against rolling are detectable and in a second state of the parking brake rollers are rotatable.

Ein Bett mit einer solchen Feststellbremse ist aus der europäischen Patentanmeldung, die unter der Veröffentlichungsnummer EP 1 645 257 A1 veröffentlicht wurde, bekannt. Die Feststellbremse, die in dieser Patentanmeldung offenbart ist, weist zumindest ein ein- oder mehrteiliges Feststellmittel auf, das zum Feststellen des Bettes geeignet und eingerichtet ist. Außerdem weist die Feststellbremse zumindest ein ein- oder mehrteiliges Betätigungsmittel auf, mit welchem die Feststellbremse aus dem ersten Zustand in den zweiten Zustand überführbar ist und umgekehrt.A bed with such a parking brake is from the European patent application, which is under the publication number EP 1 645 257 A1 was published known. The parking brake disclosed in this patent application has at least one one-part or multi-part locking means which is suitable and arranged for fixing the bed. In addition, the parking brake has at least one single- or multi-part actuating means with which the parking brake can be transferred from the first state to the second state and vice versa.

Eine Besonderheit der in der europäischen Patentanmeldung mit der Veröffentlichungsnummer EP 1 645 257 A1 offenbarten Feststellbremse ist, dass die Betätigungsmittel durch eine Krafteinwirkung in die gleiche Richtung zum Lösen der Bremse und Feststellen der Bremse betätigt werden können. Ein Betätigungspedal der Betätigungsmittel kann sowohl zum Lösen der Bremse als auch zum Festsetzen der Bremse nach unten gedrückt werden. Durch einen Mechanismus, insbesondere durch die Feststellmittel wird dann erreicht, dass nach einer Betätigung der Betätigungsmittel die Feststellbremse in dem dann eingenommenen Zustand verbleibt und zwar bis zur nächsten Betätigung.A special feature of the European patent application with the publication number EP 1 645 257 A1 disclosed parking brake is that the actuating means can be actuated by a force in the same direction to release the brake and locking the brake. An actuating pedal of the actuating means can be pressed down both for releasing the brake and for setting the brake. By a mechanism, in particular by the locking means is then achieved that after actuation of the actuating means, the parking brake in the then assumed state remains until the next operation.

Der Mechanismus, mit welchem der Verbleib der Feststellbremse in dem eingenommenen Zustand nach einer Entlastung der Betätigungsmittel erreicht wird, ist sehr aufwändig. Er besteht aus einer Vielzahl von Einzelteilen, die miteinander zusammenwirken.The mechanism with which the retention of the parking brake in the assumed state is achieved after a discharge of the actuating means is very complex. It consists of a large number of individual parts that interact with each other.

Hier setzt die vorliegende Erfindung an.This is where the present invention begins.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Feststellbremse der eingangs genannten Art so zu verbessern, dass der Verbleib der Feststellbremse in dem nach einer Betätigung eingenommenen Zustand bis zur nächsten Betätigung mit einfachen, handelsüblichen Bauteilen gesichert ist.The present invention has for its object to improve a parking brake of the type mentioned so that the whereabouts of the parking brake is secured in the occupied state after an operation until the next operation with simple, commercially available components.

Diese Aufgabe von den Merkmalen des Anspruchs erfindungsgemäß dadurch gelöst, dass das Feststellmittel eine blockierbare Gasfeder umfasst, die in dem ersten Zustand der Feststellbremse blockiert ist und die in dem zweiten Zustand der Feststellbremse blockiert ist und die geeignet und eingerichtet ist, beim Wechsel der Feststellbremse vom ersten Zustand in den zweiten Zustand gelöst zu werden.This object of the features of claim according to the invention achieved in that the locking means comprises a lockable gas spring which is blocked in the first state of the parking brake and which is blocked in the second state of the parking brake and which is suitable and adapted when changing the parking brake from first state to be solved in the second state.

Blockierbare Federn im Sinne der Erfindung sind solche Federn, deren Länge in zumindest zwei verschiedenen Zuständen blockierbar ist. Durch ein Aufheben der Blockierung kann die Länge einer blockierbare Feder verändert werden. Das Prinzip einer blockierbaren Feder ist beispielsweise von Kugelschreibern bekannt, bei denen durch Anordnungen mit blockierbaren Federn eine Kugelschreibermine durch ein wiederholtes Drücken auf einen Auslöseknopf, der stirnseitig aus einem Kugelschreibergehäuse herausragt, aus dem Kugelschreibergehäuse herausgedrückt werden kann oder in das Kugelschreibergehäuse hereingezogen werden kann.Blockable springs in the context of the invention are those springs whose length can be blocked in at least two different states. By releasing the blocking, the length of a lockable spring can be changed. The principle of a lockable spring is known, for example, from ballpoint pens, in which by arrangements with lockable springs a ballpoint pen refill can be pushed out of the ballpoint pen housing by repeated pressing on a release button, which protrudes from a ballpoint pen housing at the front or can be pulled into the ballpoint pen housing.

Bekannt sind blockierbare Federn auch als blockierbare Gasfedern. Blockierbare Gasfedern sind als handelsübliche Bauteile auf dem Markt erhältlich und beispielsweise aus der Druckschrift DE 42 36 150 A1 bekannt. Die Stabilus GmbH bietet derartige blockierbare Gasfedern beispielsweise unter der Bezeichnung "Bloc-O-Lift" an.Lockable springs are also known as lockable gas springs. Blockable gas springs are available as commercially available components on the market and for example from the document DE 42 36 150 A1 known. Stabilus GmbH offers such blockable gas springs, for example, under the name "Bloc-O-Lift".

Die Länge der Gasfeder, wie in einer erfindungsgemäßen Feststellbremse verwendet werden kann, ist im ersten Zustand und im zweiten Zustand der Feststellbremse unterschiedlich. Durch das Blockieren der Gasfeder in den beiden unterschiedlichen Zuständen der Feststellbremse und der gleichzeitigen unterschiedlichen Länge der Gasfeder in den beiden Zuständen kann ein Blockieren der Drehung der Rollen erreicht werden.The length of the gas spring, as can be used in a parking brake according to the invention, is different in the first state and in the second state of the parking brake. By blocking the gas spring in the two different states of the parking brake and the simultaneous different length of the gas spring in the two states, a blocking of the rotation of the rollers can be achieved.

Gemäß der Erfindung kann die Gasfeder geeignet und eingerichtet sein, durch eine Betätigung, d. h. eine Krafteinwirkung in die gleiche Richtung gelöst zu werden und auf eine andere Länge gebracht zu werden.According to the invention, the gas spring may be suitable and arranged by an actuation, i. H. a force to be released in the same direction and be brought to a different length.

Gemäß der Erfindung kann die Gasfeder einen Zylinder und einen Kolben aufweisen, wobei der Kolben in dem Zylinder verschiebbar angeordnet ist. Die Gasfeder ist vorzugsweise so ausgebildet, dass durch eine Krafteinwirkung in Richtung der Kolbenstange die Gasfeder gelöst werden kann, um in einen anderen Zustand bzw. in eine andere Stellung überführt zu werden.According to the invention, the gas spring may comprise a cylinder and a piston, wherein the piston is slidably disposed in the cylinder. The gas spring is preferably designed so that the gas spring can be released by a force in the direction of the piston rod to be transferred to another state or in another position.

Das Betätigungsmittel kann mit der Kolbenstange oder mit dem Zylinder zum Zwecke des Lösens der Gasfeder und Überführen der Gasfeder in einen anderen Zustand gekoppelt sein. Das Feststellmittel kann ferner zumindest ein Andruckelement umfassen, das geeignet und eingerichtet ist, im ersten Zustand der Feststellbremse die Rollen zu blockieren und die Rolle im zweiten Zustand der Feststellbremse frei zu geben. Dazu kann das Andruckelement geeignet und eingerichtet sein zwischen einer ersten Stellung im ersten Zustand der Feststellbremse und einer zweiten Stellung im zweiten Zustand der Feststellbremse verschoben zu werden.The actuating means may be coupled to the piston rod or to the cylinder for the purpose of releasing the gas spring and transferring the gas spring to another state. The locking means may further comprise at least one pressure element which is suitable and adapted to block the rollers in the first state of the parking brake and to release the roller in the second state of the parking brake. For this purpose, the pressure element can be suitable and arranged to be displaced between a first position in the first state of the parking brake and a second position in the second state of the parking brake.

Das Feststellelement kann ferner ein Koppelelement umfassen, über welches die Kolbenstange oder der Zylinder der Gasfeder mit dem Andruckelement gekoppelt ist. Das Koppelelement ist schwenkbar gelagert und geeignet und eingerichtet, zwischen einer ersten Stellung im ersten Zustand der Feststellbremse und einer zweiten Stellung im zweiten Zustand der Feststellbremse geschwenkt zu werden. Die Schwenkstellung wird dabei vorzugsweise durch die Länge der Gasfeder bestimmt.The locking element may further comprise a coupling element, via which the piston rod or the cylinder of the gas spring is coupled to the pressure element. The coupling element is pivotally mounted and adapted and adapted to be pivoted between a first position in the first state of the parking brake and a second position in the second state of the parking brake. The pivot position is preferably determined by the length of the gas spring.

Vorzugsweise ist der Zylinder oder die Kolbenstange mit einem Koppelelement gelenkig verbunden.Preferably, the cylinder or the piston rod is pivotally connected to a coupling element.

Das Koppelelement einer erfindungsgemäßen Feststellbremse kann eine Führungskontur zum Führen des Andruckselements aufweisen, an welcher das Andruckelement vorzugsweise unter dem Vordruck eines Federelements anliegt. Das Federelement kann somit zum Drücken des Andruckelements an die Führungskontur des Koppelelements geeignet und eingerichtet sein.The coupling element of a parking brake according to the invention may have a guide contour for guiding the pressure element, on which the pressure element preferably bears against the pre-pressure of a spring element. The spring element can thus be suitable and arranged for pressing the pressure element on the guide contour of the coupling element.

Das Betätigungsmittel einer erfindungsgemäßen Feststellbremse kann über das Koppelelement mit dem Andruckelement gekoppelt sein, um Betätigungskräfte von dem Betätigungsmittel auf das Andruckelement zu übertragen.The actuating means of a parking brake according to the invention may be coupled via the coupling element with the pressure element to transmit actuating forces from the actuating means to the pressure element.

Außerdem kann das Betätigungsmittel über das Koppeieiement mit der Gasfeder gekoppelt sein, um zum Aufheben der Blockierung eine Kraft auf die Gasfeder zu übertragen.In addition, the actuating means may be coupled via the Koppeieiement with the gas spring to transmit a force to the gas spring to release the blockage.

Das Betätigungsmittel ist vorzugsweise gelenkig mit dem Koppelelement verbunden.The actuating means is preferably hingedly connected to the coupling element.

Das Betätigungsmittel einer erfindungsgemäßen Feststellbremse kann einen Betätigungshebel oder ein Betätigungspedal und ein Übertragungselement zur Übertragung einer Betätigungskraft vom Betätigungshebel oder Betätigungspedal zum Koppelelement aufweisen.The actuating means of a parking brake according to the invention may comprise an actuating lever or an actuating pedal and a transmission element for transmitting an actuating force from the actuating lever or actuating pedal to the coupling element.

Das Koppelelement kann mehrteilig ausgebildet sein und ein erstes Kopplungsteil, ein Verbindungsteil und ein zweites Kopplungsteil umfassen, die vorzugsweise starr miteinander verbunden sind. Das Betätigungsmittel kann mit dem ersten Kopplungsteil des Koppelelements gelenkig verbunden sein. Die Gasfeder ist dagegen vorzugsweise mit dem zweiten Kopplungsteil des Koppelelements verbunden. Die Führungskontur kann an dem zweiten Kopplungsteil des Koppelelements vorgesehen sein.The coupling element may be designed in several parts and comprise a first coupling part, a connecting part and a second coupling part, which are preferably rigidly connected to each other. The actuating means may be hingedly connected to the first coupling part of the coupling element. By contrast, the gas spring is preferably connected to the second coupling part of the coupling element. The guide contour may be provided on the second coupling part of the coupling element.

Ein erfindungsgemäßes Bett, insbesondere ein Pflegebett kann auf Rollen ruhende Fußstützen und zumindest eine Feststellbremse nach der vorgenannten Art aufweisen. Je zwei Rollen können dabei jeweils einer Feststellbremse zugeordnet sein. Eine solche Feststellbremse kann dann zusätzlich zu dem Andruckelement ein weiteres Andruckelement aufweisen, wobei jedem Andruckelement jeweils eine Rolle zugeordnet ist. Jede Feststellbremse kann außerdem zu dem Koppelelement ein weiteres Koppelelement aufweisen, und das weitere Koppelelement kann dem weiteren Andruckelement zugeordnet sein. Die beiden Koppelelemente jeder Feststellbremse können über je ein Kraftübertragungsglied miteinander gekoppelt sein.A bed according to the invention, in particular a nursing bed, can have footrests resting on castors and at least one parking brake of the aforementioned type. Each two rollers can each be assigned to a parking brake. Such a parking brake may then have, in addition to the pressure element, a further pressure element, wherein each pressure element is associated with a respective role. Each parking brake may also have to the coupling element another coupling element, and the further coupling element may be assigned to the further pressure element. The two coupling elements of each parking brake can be coupled to each other via a respective power transmission member.

Die Feststellbremse kann zusätzlich zu dem Betätigungsmittel ein weiteres Betätigungsmittel aufweisen, und die weiteren Betätigungsmittel können dem weiteren Koppelelement zugeordnet sein.The parking brake may comprise, in addition to the actuating means, a further actuating means, and the further actuating means may be associated with the further coupling element.

Ein Ausführungsbeispiel für eine erfindungsgemäße Feststellbremse sowie einer Fußstütze eines Bettes mit Rollen und erfindungsgemäßer Feststellbremse sind anhand der Zeichnungen näher beschrieben. Darin zeigen:

Fig. 1
eine Fußstütze, Rollen und Feststellbremse eines erfindungsgemäßen Bettes,
Fig. 2
eine perspektivische Darstellung der Feststellbremse und der Rollen gemäß Figur 1,
Fig. 3
eine Ansicht der Feststellbremse und der Rolle gemäß Figur 2 von vorne bei ungebremsten Rollen,
Fig. 4
ein Detail aus Figur 3,
Fig. 5
die Anordnung gemäß Figur 3 jedoch bei festgestellten Rollen und
Fig. 6
ein Detail aus Figur 5.
An embodiment of a parking brake according to the invention and a footrest of a bed with rollers and inventive parking brake are described in more detail with reference to the drawings. Show:
Fig. 1
a footrest, rollers and parking brake of a bed according to the invention,
Fig. 2
a perspective view of the parking brake and the rollers according to FIG. 1 .
Fig. 3
a view of the parking brake and the role according to FIG. 2 from the front with unbraked rollers,
Fig. 4
a detail from FIG. 3 .
Fig. 5
the arrangement according to FIG. 3 however, with identified roles and
Fig. 6
a detail from FIG. 5 ,

Die in Figur 1 dargestellte Fußstütze A eines erfindungsgemäßen Bettes ruht auf Rollen B1, die an Auslegern A1 der Fußstütze angebracht sind. Die Ausleger A1 sind mit unteren Enden A2 von Hubsäulen verbunden, deren Hubzylinder A4 in der Figur 1 nur angedeutet sind. Zugleich ist das untere Ende A2 der Hubsäulen mit einem Verbindungsblech A3 verbunden, womit die rechte Hälfte und eine linke Hälfte der Fußstützes zusammengehalten werden.In the FIG. 1 illustrated footrest A of a bed according to the invention rests on rollers B1, which are mounted on arms A1 of the footrest. The arms A1 are connected to lower ends A2 of lifting columns, the lifting cylinder A4 in the FIG. 1 are only indicated. At the same time, the lower end A2 of the lifting columns is connected to a connecting plate A3, whereby the right half and a left half of the footrest are held together.

Auf dem verfahrbaren oberen Ende der Hubzylinder A4 ruht ein Querträger A5, auf welchem ein Bettobergestell oder ein Matratzenrahmen des erfindungsgemäßen Bettes ruhen kann.On the movable upper end of the lifting cylinder A4 rests a cross member A5, on which a bed frame or a mattress frame of the bed according to the invention can rest.

Die Rollen B1 (siehe Figur 4 und Figur 6) sind Teil einer Rollenbaugruppe B, die neben der Rolle B1 auch einen Rollenhalter B2 umfasst, in dem die Rolle B1 drehbar gehalten ist. Der Rollenhalter B2 ist seinerseits um eine senkrechte Achse drehbar an dem Ausleger A1 der Fußstütze des Bettes gelagert.The rollers B1 (see FIG. 4 and FIG. 6 ) are part of a roller assembly B, which also includes a roller holder B2 in addition to the roller B1, in which the roller B1 is rotatably supported. The roller holder B2 is in turn mounted rotatably about a vertical axis on the arm A1 of the footrest of the bed.

An dem Rollenhalter B1 der Rolle ist ein Stift verschiebbar gelagert, der nachfolgend als Andruckelement 11 bezeichnet wird. Dieses Andruckelement 11 kann zwischen einer Stellung verschoben werden, in der es auf die Rolle B1 drückt und dadurch eine Drehung der Rolle B1 blockiert. In einer anderen Stellung hat das Andruckelement 11 einen Abstand zur Rolle B1, so dass sich diese gegenüber dem Andruckelement 11 frei drehen kann. Durch ein nicht dargestelltes Federelement wird das Andruckelement 11 in die Stellung gedrückt, in welcher die Rolle B1 nicht blockiert ist.On the roll holder B1 of the roller, a pin is slidably mounted, which is hereinafter referred to as pressure element 11. This pressure element 11 can be displaced between a position in which it presses on the roller B1 and thereby blocks a rotation of the roller B1. In another position, the pressure element 11 has a distance from the roller B1, so that they can rotate freely relative to the pressure element 11. By a spring element, not shown, the pressure element 11 is pressed into the position in which the roller B1 is not blocked.

Das Andruckelement 11 ist Teil der Feststellmittel 1 der Feststellbremse C des erfindungsgemäßen Bettes. Neben dem Andruckelement 11 zählen auch ein Koppelelement 12 und eine Gasfeder 10 zum Feststellmittel 1. Das Feststellmittel 1 ist somit mehrteilig ausgebildet. Das Koppelelement 12, welches ebenfalls mehrteilig ausgebildet ist, ist schwenkbar an dem Ausleger A1 der Fußstütze A gelagert. Das Koppelelement 12 weist ein erstes Kopplungsteil 120 auf, ein Verbindungsteil 121 und ein zweites Kopplungsteil 122 auf, die starr miteinander verbunden sind. Das Verbindungsteil 121 bildet zugleich eine Drehachse, mit welchem das Koppelelement 12 an dem Ausleger A1 schwenkbar befestigt ist.The pressure element 11 is part of the locking means 1 of the parking brake C of the bed according to the invention. In addition to the pressure element 11 also include a coupling element 12 and a gas spring 10 to the locking means 1. The locking means 1 is thus formed in several parts. The coupling element 12, which is also designed in several parts, is pivotally mounted on the arm A1 of the footrest A. The coupling element 12 has a first coupling part 120, a connecting part 121 and a second coupling part 122, which are rigidly connected to each other. The connecting part 121 also forms an axis of rotation, with which the coupling element 12 is pivotally mounted on the arm A1.

Das zweite Kopplungsteil 122 weist eine Führungskontur 1220 auf, an welcher das Andruckelement 11 aufgrund des Federdrucks des nicht dargestellten Federelements ständig anliegt. Da die Führungskontur in einem Bereich einen größeren Abstand zur Schwenkachse des Koppelelements 12 hat als in einem anderen Bereich, kann durch ein Schwenken des zweiten Kopplungsteils 122 das Andruckelement 11 aus der einen Stellung, in welcher die Rolle B1 frei drehen kann, in eine andere Stellung, in welcher die Rolle B1 blockiert ist, verschoben werden.The second coupling part 122 has a guide contour 1220 on which the pressure element 11 constantly bears due to the spring pressure of the spring element, not shown. Since the guide contour in a region a greater distance from the pivot axis of the Coupling element 12 has as in another area, can be moved by pivoting the second coupling part 122, the pressure element 11 from the one position in which the roller B1 can rotate freely to another position in which the roller B1 is blocked.

In der Darstellung der Figur 3 und der Figur 4 ist die Rolle B1 nicht blockiert, dass heißt das Andruckelement 11 ist in einer oberen Stellung, während in der Darstellung der Figur 5 und der Figur 6 die Rolle B1 blockiert ist und das Andruckelement 11 durch die Führungskontur 1220 gegen die Rolle B1 gedrückt wird.In the presentation of the FIG. 3 and the FIG. 4 is the roller B1 is not blocked, that is, the pressing member 11 is in an upper position, while in the illustration of the FIG. 5 and the FIG. 6 the roller B1 is blocked and the pressure element 11 is pressed by the guide contour 1220 against the roller B1.

Zum Schwenken des Koppelelements 12 und somit auch des zweiten Kopplungsteils 122 mit der Führungskontur 1220 ist das Koppelelement 12 mit dem Betätigungsmittel 2 verbunden. Das Betätigungsmittel 2 weist ein Betätigungspedal 20 auf, das gelenkig mit einem Übertragungselement 21 des Betätigungsmittels 2 verbunden ist. Das Übertragungselement 21 ist gelenkig mit dem Koppelelement 12 verbunden. Das Betätigungspedal 20 ist schwenkbar an dem Ausleger A1 der Fußstütze A gelagert. Wird das Betätigungspedal 20 nach unten geschwenkt, wird die Betätigungskraft, die auf das Betätigungspedal einwirkt, vom Betätigungspedal 20 auf das Übertragungselement 21 und von dem Übertragungselement 21 auf das Koppelelement 12 übertragen. Dadurch wird das Koppelelement in seine erste Stellung oder seine zweite Stellung geschwenkt und gleichzeitig eine Betätigung der Gasfeder 10 bewirkt, die ihre Länge ändert.For pivoting the coupling element 12 and thus also the second coupling part 122 with the guide contour 1220, the coupling element 12 is connected to the actuating means 2. The actuating means 2 has an actuating pedal 20 which is pivotally connected to a transmission element 21 of the actuating means 2. The transmission element 21 is pivotally connected to the coupling element 12. The operating pedal 20 is pivotally mounted on the arm A1 of the footrest A. When the operation pedal 20 is pivoted downward, the operation force acting on the operation pedal is transmitted from the operation pedal 20 to the transmission member 21 and from the transmission member 21 to the coupling member 12. Characterized the coupling element is pivoted to its first position or its second position and at the same time causes an actuation of the gas spring 10, which changes its length.

Damit nach der Wegnahme der Betätigungskraft, das Koppelelement in seiner eingenommenen Stellung bleibt, ist die blockierbare Gasfeder 10 vorgesehen. Die blockierbare Gasfeder 10 weist einen Zylinder 101 auf, der schwenkbar an einem Kragarm A11 des Auslegers A1 befestigt ist. Die Gasfeder weist darüber hinaus auch eine Kolbenstange 102 auf, die mit einem Kolben in dem Zylinder 101 verbunden ist. Das Ende der Kolbenstange 102 ist gelenkig mit dem zweiten Kopplungsteil 122 des Koppelelements 12 verbunden.So that after removal of the actuating force, the coupling element remains in its assumed position, the blockable gas spring 10 is provided. The lockable gas spring 10 has a cylinder 101 which is pivotally mounted on a cantilever A11 of the Outrigger A1 is attached. The gas spring also has a piston rod 102 which is connected to a piston in the cylinder 101. The end of the piston rod 102 is pivotally connected to the second coupling part 122 of the coupling element 12.

Die blockierbare Gasfeder 10 wird durch einen axialen Druck auf die Kolbenstange betätigt. Die Kolbenstange wird dabei verschoben. Durch einen in den Figuren nicht näher dargestellten, aus dem Stand der Technik jedoch bekannten Mechanismus wird die Kolbenstange dabei bei jeder Betätigung in einer blockierten Stellung gebracht. Durch eine weitere Betätigung kann die Kolbenstange aus dieser blockierten Stellung gelöst werden und in die andere blockierte Stellung überführt werden. Bei jedem Wechsel aus der einen blockierten Stellung der Gasfeder in die andere ändert sich der Abstand zwischen dem Anlenkpunkt der Kolbenstange 102 und dem Anlenkpunkt des Zylinders 101. Das zweite Kopplungsteil bzw. das gesamte Koppelelement wird dadurch in seinen verschiedenen Stellungen durch die Gasfeder blockiert und gehalten. Bei einer Betätigung des Betätigungspedals 20 wird eine axiale Kraft auf die Kolbenstange 102 ausgeübt, um die Blockierung aufzuheben und das Koppelelement 12 in seine jeweils andere Stellung zu schwenken und dadurch die Feststellbremse zu lösen oder anzuziehen.The lockable gas spring 10 is actuated by an axial pressure on the piston rod. The piston rod is displaced. By a non-illustrated in the figures, however, known from the prior art mechanism, the piston rod is thereby brought in each case in a blocked position. By further actuation, the piston rod can be released from this blocked position and transferred to the other blocked position. At each change from one blocked position of the gas spring to the other, the distance between the articulation point of the piston rod 102 and the articulation point of the cylinder 101 changes. The second coupling part or the entire coupling element is thereby blocked and held in its various positions by the gas spring , Upon actuation of the actuating pedal 20, an axial force is exerted on the piston rod 102 to release the blockage and pivot the coupling element 12 to its other position, thereby releasing or tightening the parking brake.

Die Feststellbremse weist ein Kraftübertragungsglied 3 auf, welches zu einem weiteren Betätigungsmittel 2a und weiteren Feststellmitteln 1 a auf der anderen Seite der Fußstütze führt. Das weitere Feststellmittel 1a und die weiteren Betätigungsmittel 2a sind analog zu dem bisher beschriebenen Feststellmittel 1 und dem bisher beschriebenen Betätigungsmittel 2 ausgebildet. Ein einziger Unterscheid besteht darin, dass die Feststellmittel 1a keine Gasfeder 10 umfassen, da die Blockierung durch die Gasfeder 10 auf der einen Seite der Fußstütze ausreichend für die Blockierung der Koppelelemente 12 bzw. des weiteren Koppelelementes 12a auf beiden Seiten der Fußstütze ist. Das weitere Koppelelement, welches ebenfalls ein erstes Kopplungsteil 120a, ein zweites Verbindungsteil 121a und ein zweites Kopplungsteil 122a mit einer Führungskontur 1220a aufweist, drückt also ebenso auf ein Andruckelement 11a, um die Rolle B1 zu blockieren. Die weiteren Betätigungsmittel 2 umfassen ein Betätigungspedal 20a und ein Übertragungselement 21 a. Diese ermöglichen eine Betätigung der Feststellbremse auch von der gegenüberliegenden Seite der Fußstütze. Die Feststellbremse des Bettes kann somit von beiden Seiten der Fußstütze, d. h. von beiden Seiten des Bettes betätigt werden.The parking brake has a power transmission member 3, which leads to a further actuating means 2a and further locking means 1 a on the other side of the footrest. The further locking means 1a and the further actuating means 2a are formed analogously to the previously described locking means 1 and the actuating means 2 described so far. A single distinction is that the locking means 1a do not comprise a gas spring 10, since the blockage by the gas spring 10 on one side of the footrest is sufficient for blocking the Coupling elements 12 and the further coupling element 12a on both sides of the footrest is. The further coupling element, which likewise has a first coupling part 120a, a second connecting part 121a and a second coupling part 122a with a guide contour 1220a, thus also presses on a pressure element 11a to block the roller B1. The further actuating means 2 comprise an actuating pedal 20a and a transmission element 21 a. These allow actuation of the parking brake also from the opposite side of the footrest. The parking brake of the bed can thus be operated from both sides of the footrest, ie from both sides of the bed.

Claims (25)

  1. Immobilizing brake (C) for furniture with rollers (B1), in particular a bed, with which, in a first state of the immobilizing brake (C), the rollers (B1) of the furniture can be immobilized and, in a second state of the immobilizing brake (C), the rollers (B1) can be rotated,
    - with at least one single- or multi-part immobilizing means (1) which is suitable and is designed for immobilizing the rollers (B1),
    - with at least one single- or multi-part actuating means (2) by means of which the immobilizing brake (C) can be transferred from the first state into the second state, and vice versa,
    characterized in that
    the immobilizing means (1) comprises a blockable gas-filled spring (10) which is blocked in the first state of the immobilizing brake (C) and which is blocked in the second state of the immobilizing brake (C) and which can be released when the immobilizing brake (C) is changed from the first state into the second state and which can be released when the immobilizing brake (C) is changed from the second state into the first state, and
    in that the gas-filled spring (10) has a cylinder (101) and a piston which is arranged displaceably in the cylinder.
  2. Immobilizing brake (C) according to Claim 1, characterized in that the gas-filled spring (10) can be released in the first state of the immobilizing brake by an application of force in the direction of a piston rod (102).
  3. Immobilizing brake (C) according to Claim 2, characterized in that the gas-filled spring (10) can be released in the second state of the immobilizing brake, as in the first state, by an application of force in the same direction of the piston rod.
  4. Immobilizing brake (C) according to Claim 2 or 3, characterized in that the actuating means (2) is coupled to the piston rod (102) or to the cylinder (101) in order to release the gas-filled spring (10).
  5. Immobilizing brake (C) according to one of Claims 1 to 4, characterized in that the immobilizing means (1) comprises at least one press-on element (11) with which the rollers (B1) can be blocked in the first state of the immobilizing brake (C) and which releases the rollers (B1) in the second state of the immobilizing brake (C).
  6. Immobilizing brake (C) according to Claim 5, characterized in that the press-on element (11) can be displaced between a first position in the first state of the immobilizing brake (C) and a second position in the second state of the immobilizing brake (C).
  7. Immobilizing brake (C) according to Claim 5 or 6, characterized in that the immobilizing means (1) comprises a coupling element (12) via which the piston rod (102) or the cylinder (101) of the gas-filled spring (10) is coupled to the press-on element (11).
  8. Immobilizing brake (C) according to Claim 7, characterized in that the coupling element (12) is mounted pivotably and can be pivoted between a first position in the first state of the immobilizing brake (C) and a second position in the second state of the immobilizing brake (C).
  9. Immobilizing brake (C) according to Claim 8, characterized in that the cylinder (101) or the piston rod (102) is attached to the coupling element (12) in an articulated manner.
  10. Immobilizing brake (C) according to Claim 8 or 9, characterized in that the coupling element (12) has a guide contour (1220) for guiding the press-on element (11), against which guide contour the press-on element (11) bears.
  11. Immobilizing brake (C) according to Claim 10, characterized in that the immobilizing brake has a spring element with which the press-on element (11) can be pressed against the guide contour (1220) of the coupling element (12).
  12. Immobilizing brake (C) according to one of Claims 7 to 11, characterized in that the actuating means (2) is coupled to the press-on element (11) via the coupling element (12).
  13. Immobilizing brake (C) according to one of Claims 7 to 12, characterized in that the actuating means (2) is coupled to the gas-filled spring (10) via the coupling element (12).
  14. Immobilizing brake (C) according to Claim 12 or 13, characterized in that the actuating means (2) is connected to the coupling element (12) in an articulated manner.
  15. Immobilizing brake (C) according to one of Claims 12 to 14, characterized in that the actuating means (2) comprises an actuating lever or an actuating pedal (20) and at least one transmission element (21) for transmitting an actuating force from the actuating lever or actuating pedal (20) to the coupling element (12).
  16. Immobilizing brake (C) according to one of Claims 7 to 15, characterized in that the coupling element (12) comprises a first coupling part (120), a connecting part (121) and a second coupling part (122), which are connected rigidly to one another.
  17. Immobilizing brake (C) according to Claim 16, characterized in that the actuating means (2) are connected to the first coupling part (120) of the coupling element (12) in an articulated manner.
  18. Immobilizing brake (C) according to Claim 16 or 17, characterized in that the gas-filled spring (10) is connected to the second coupling part (122) of the coupling element (12).
  19. Immobilizing brake (C) according to one of Claims 16 to 18, characterized in that the guide contour (1220) is provided on the second coupling part (122) of the coupling element (12).
  20. Bed, in particular care bed, with foot rests resting on rollers (B1) and with immobilizing brakes (C),
    characterized in that
    the immobilizing brake (C) is designed according to one of Claims 1 to 19.
  21. Bed according to Claim 20, characterized in that one immobilizing brake (C) is in each case assigned to two rollers (B1).
  22. Bed according to Claim 21, characterized in that each immobilizing brake (C) has a further press-on element (11a) in addition to the press-on element (11) and the two press-on elements (11, 11a) are each assigned to a roller (B1).
  23. Bed according to Claim 22, characterized in that each immobilizing brake (C) has a further coupling element (12a) in addition to the coupling element (12), and the further coupling element is assigned to the further press-on element (11a).
  24. Bed according to Claim 23, characterized in that the coupling elements (12, 12a) of each immobilizing brake (C) are coupled to each other via a force transmission member (3).
  25. Bed according to Claim 23, characterized in that each immobilizing brake (C) has a further actuating means (2a) in addition to the actuating means (2), and the further actuating means (2a) are assigned to the further coupling element (12a).
EP08002250A 2008-02-07 2008-02-07 Immobilising brake for furniture with rollers, in particular beds and bed with such an immobilising brake Not-in-force EP2095803B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES08002250T ES2388569T3 (en) 2008-02-07 2008-02-07 Immobilization brake for furniture with rollers, in particular beds, and bed with an immobilization brake of this type
EP08002250A EP2095803B1 (en) 2008-02-07 2008-02-07 Immobilising brake for furniture with rollers, in particular beds and bed with such an immobilising brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08002250A EP2095803B1 (en) 2008-02-07 2008-02-07 Immobilising brake for furniture with rollers, in particular beds and bed with such an immobilising brake

Publications (2)

Publication Number Publication Date
EP2095803A1 EP2095803A1 (en) 2009-09-02
EP2095803B1 true EP2095803B1 (en) 2012-05-23

Family

ID=39524930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08002250A Not-in-force EP2095803B1 (en) 2008-02-07 2008-02-07 Immobilising brake for furniture with rollers, in particular beds and bed with such an immobilising brake

Country Status (2)

Country Link
EP (1) EP2095803B1 (en)
ES (1) ES2388569T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2484329A3 (en) * 2011-02-08 2013-10-16 Hill-Rom Services, Inc. Brake pedal mechanism for hospital bed
DE202013103226U1 (en) * 2013-07-18 2014-10-21 Wissner-Bosserhoff Gmbh Bed with wheels and blocking agents

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB677613A (en) * 1949-10-27 1952-08-20 Whitfields Bedsteads Ltd Improvements in castors for bedsteads
DE4236150A1 (en) 1992-10-27 1994-04-28 Stabilus Gmbh Gas damper fully lockable along stroke length - has groove in piston head for seal, with flat recess extending axially along surface
DE29507087U1 (en) * 1995-04-27 1995-06-29 Muennekehoff Gerd Dipl Ing Locking device for castors
US6460205B1 (en) * 2000-06-12 2002-10-08 Stryker Corporation Caster brake mechanism
ATE431730T1 (en) 2004-10-08 2009-06-15 Wissner Bosserhoff Gmbh BED, ESPECIALLY A SICK OR NURSING BED
US7657953B2 (en) * 2005-11-17 2010-02-09 Hill-Rom Services, Inc. Birthing bed calf support

Also Published As

Publication number Publication date
EP2095803A1 (en) 2009-09-02
ES2388569T3 (en) 2012-10-16

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