EP0150254B1 - Support for invalid beds, in particular support for stretcher - Google Patents

Support for invalid beds, in particular support for stretcher Download PDF

Info

Publication number
EP0150254B1
EP0150254B1 EP84103873A EP84103873A EP0150254B1 EP 0150254 B1 EP0150254 B1 EP 0150254B1 EP 84103873 A EP84103873 A EP 84103873A EP 84103873 A EP84103873 A EP 84103873A EP 0150254 B1 EP0150254 B1 EP 0150254B1
Authority
EP
European Patent Office
Prior art keywords
support
sprung
brake
support part
beds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84103873A
Other languages
German (de)
French (fr)
Other versions
EP0150254A2 (en
EP0150254A3 (en
Inventor
Gmbh & Co Binz
Original Assignee
Binz GmbH and Co
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 Binz GmbH and Co filed Critical Binz GmbH and Co
Priority to AT84103873T priority Critical patent/ATE40288T1/en
Publication of EP0150254A2 publication Critical patent/EP0150254A2/en
Publication of EP0150254A3 publication Critical patent/EP0150254A3/en
Application granted granted Critical
Publication of EP0150254B1 publication Critical patent/EP0150254B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/006—Means for reducing the influence of acceleration on patients, e.g. suspension systems of platforms
    • 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
    • A61G1/00—Stretchers
    • A61G1/06—Supports for stretchers, e.g. to be placed in or on vehicles

Definitions

  • the invention relates to a patient bed frame, in particular a stretcher platform or a treatment table or the like, with pneumatic suspension, which may also allow a height adjustment of the spring-loaded frame part, and with a possibility of blocking the spring-loaded frame part at a fixed height.
  • Pneumatically suspended stretcher platforms are known, for example, from DE-A-2 936 617 and are characterized by a high level of suspension comfort with a simple construction. In particular, a highly progressive suspension can also be achieved if desired.
  • the patient to be treated must lie on a firm, non-resilient surface. Therefore, the possibility must be provided on suspended stretcher platforms to switch off the suspension.
  • the platform is often lowered to its lower end position. Apart from the fact that a comparatively large amount of time is required for this, the cardiac massage cannot be carried out on the patient at an optimal working height for the medical personnel. For this reason, provision has already been made to lower the stretcher platform from a raised position onto insertable supports which keep the patient at a working height which is favorable for cardiac massage.
  • operating the stretcher platform here is also relatively time-consuming and cumbersome.
  • a stretcher platform with a spring-loaded frame is known, which can be adjusted to different heights by means of a lifting drive.
  • one or more oil-hydraulic shock absorbers are provided, which can be blocked by blocking the oil flow and thus give the possibility to hold the frame immovably at any desired height.
  • the spring-loaded frame part is connected to a linkage part which executes a longitudinal displacement when the spring-loaded frame part is lifted and can be locked relative to the unsprung frame part or floor by means of a pneumatically actuated brake, which uses the rod part which interacts with it Grips brake shoes like a chuck.
  • the invention is based on the general idea that the sprung frame part on stretcher platforms and the like. is supported with a guide to prevent lurching movements in the lifting direction, so that only approximately vertical movements of the lying surface are permitted and the same maintains their set horizontal position or inclined position (e.g. head-down position) unchanged even when deflected. Because of this design, it is sufficient to lock a single linkage part which is connected directly or via a lifting frame to the sprung frame part in order to switch off the suspension.
  • the brake can preferably cooperate with a linkage part of the pneumatic suspension unit, for example with the piston rod of a piston-cylinder unit serving to provide resilient support for the support frame, or also with a plunger which is resiliently supported on a diaphragm supported by the pneumatic medium or a pneumatic bellows.
  • the brake shoes preferably cooperate with a pneumatically actuated slide part by means of wedge surfaces.
  • a pneumatically actuated slide part by means of wedge surfaces.
  • the slide part is actuated pneumatically in the brake actuating direction and in the brake releasing direction by means of a tensioned spring, so that the pneumatic actuator actuating the brake only has to be pressurized during a cardiac massage or other treatment requiring the fixed positioning of the patient and the Brake is held securely in its inactive position when not in use, without causing undesirable friction.
  • a stretcher platform 1 is arranged on the floor of an ambulance, which essentially consists of a frame 2, the two longitudinal beams 3 of which are designed as U-rails, in which a positioning slide 4 forming an upper frame can be displaced in the longitudinal direction by means of rollers 5 is led.
  • the stretcher sled 4 serves to accommodate a stretcher 6, which in turn rests on the longitudinal rails of the sled 4 by means of its feet 7 and can be locked thereon.
  • the frame 2 and thus the entire umanthagenbühne 1 is pivotally mounted on its rear end facing the rear door of the ambulance, not shown, in a joint 8 with a horizontal transverse axis on the ground and at its front end by a scissor system 9, which, for. B. is formed from two sides of the vertical median plane of the stretcher handlebar pairs, guided in the vertical direction or secured against lateral evasion.
  • a scissor system 9 may also be omitted.
  • Pneumatic medium can be supplied to the interior of the pressure vessel 14 via a line 15 from a pressure source, not shown.
  • the pressure vessel 14 is fastened to a bracket 16 mounted on the floor, on which a pneumatically actuable brake 17 is also arranged, which cooperates with the tappet 12.
  • a pneumatically actuable brake 17 is also arranged, which cooperates with the tappet 12.
  • the frame 2 is supported by a scissor frame 20, the scissor arms are pivotally mounted on their left ends in the drawing on the frame 2 or a base frame 21 about transverse axes, while the other ends of the scissor arms on the frame 2nd and on the base frame 21 are pivotally and displaceably mounted in guide links 22.
  • the scissor-type frame 20 can thus be adjusted to different heights by means of a pneumatic piston-cylinder unit 23, which is connected to a pneumatic pressure source (not shown) and is arranged between the one scissor arm of the scissor-type frame 20 and the floor or the base frame 21 the compressibility of the pneumatic medium in any height setting, a suspension of the frame 2 remains possible.
  • the pneumatically actuated brake 17 is arranged on the cylinder of the piston-cylinder unit, which cooperates with the piston rod 23 'of the piston-cylinder unit.
  • the pneumatically actuable brake has an annular housing 25, the axial opening of which is penetrated by the plunger 12 (see FIG. 1) or the piston rod 23 '(see FIG. 2). Inside the housing 25 there is an annular space 26 which can be changed in volume and which is closed off by means of an annular piston 27 which is arranged displaceably within the housing 25.
  • a return spring 28 tries to push the annular piston 27 upward into a rest position in FIG. 3, while pneumatic medium introduced into the annular space 26 is able to push the annular piston 27 downward against the force of the spring 28.
  • a cylinder part 29 is arranged on the piston 27, or the like by means of corresponding bearing shells.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Massaging Devices (AREA)

Abstract

1. Support for invalids'beds, in particular a stretcher support or treatment table in ambulances or the like, with pneumatic springing which optionally also permits vertical adjustment of the sprung support part, and also with a possibility for blocking the spring support part to render it vertically immovable, characterized in that the sprung support part (2) is connected with a rod part (12, 13') which executes a longitudinal displacement during sprung strokes of the sprung support part (2) and can be fixed relative to the non-sprung support part (21) or the floor by means of a pneumatically actuatable brake (17), which engage with its brake jaws (31) in chuck-like manner around the rod part (12, 23') which cooperates with it.

Description

Die Erfindung betrifft ein Krankenliegengestell, insbesondere eine Krankentragenbühne oder einen Behandlungstisch od.dgl., mit pneumatischer Federung, welche gegebenenfalls auch eine Höhenverstellung des gefederten Gestellteiles zuläßt, sowie mit einer Möglichkeit zur höhenunbeweglichen Blockierung des gefederten Gestellteiles.The invention relates to a patient bed frame, in particular a stretcher platform or a treatment table or the like, with pneumatic suspension, which may also allow a height adjustment of the spring-loaded frame part, and with a possibility of blocking the spring-loaded frame part at a fixed height.

Pneumatisch gefederte Krankentragenbühnen sind beispielsweise aus der DE-A-2 936 617 bekannt und zeichnen sich bei einfacher Konstruktion durch hohen Federungskomfort aus. Insbesondere läßt sich gewünschtenfalls auch eine stark progressive Federung erzielen. Zur Durchführung einer Herzmassage muß allerdings der zu behandelnde Patient auf einer festen, nicht federnden Unterlage liegen. Deshalb muß an gefederten Krankentragenbühnen die Möglichkeit vorgesehen werden, die Federung auszuschalten. Bei pneumatisch gefederten Krankentragenbühnen wird dazu die Bühne oftmals in ihre untere Endlage abgesenkt. Abgesehen davon, daß dazu vergleichsweise viel Zeit benötigt wird, kann die Herzmassage nicht in einer für das Sanitätspersonal optimalen Arbeitshöhe am Patienten durchgeführt werden. Aus diesem Grunde wurde schon vorgesehen, die Tragenbühne aus einer angehobenen Lage auf einsetzbare Stützen abzusenken, welche den Patienten auf einer für die Herzmassage günstigen Arbeitshöhe halten. Jedoch ist auch hier die entsprechende Bedienung der Krankentragenbühne relativ zeitraubend und darüber hinaus umständlich.Pneumatically suspended stretcher platforms are known, for example, from DE-A-2 936 617 and are characterized by a high level of suspension comfort with a simple construction. In particular, a highly progressive suspension can also be achieved if desired. To carry out a cardiac massage, however, the patient to be treated must lie on a firm, non-resilient surface. Therefore, the possibility must be provided on suspended stretcher platforms to switch off the suspension. In the case of pneumatically suspended stretcher platforms, the platform is often lowered to its lower end position. Apart from the fact that a comparatively large amount of time is required for this, the cardiac massage cannot be carried out on the patient at an optimal working height for the medical personnel. For this reason, provision has already been made to lower the stretcher platform from a raised position onto insertable supports which keep the patient at a working height which is favorable for cardiac massage. However, operating the stretcher platform here is also relatively time-consuming and cumbersome.

Aus der DE-B-2 552 344 ist eine Krankentragenbühne mit abgefedertem Gestell bekannt, welches durch einen Hubantrieb in verschiedene Höhenlagen einstellbar ist. Zur Dämpfung der Federungshübe sind ein oder mehrere ölhydraulische Stoßdämpfer vorgesehen, welche durch Sperrung des Ölflusses blockiert werden können und damit die Möglichkeit geben, das Gestell in jeder gewünschten Höhenlage unbeweglich festzuhalten.From DE-B-2 552 344 a stretcher platform with a spring-loaded frame is known, which can be adjusted to different heights by means of a lifting drive. To dampen the suspension strokes, one or more oil-hydraulic shock absorbers are provided, which can be blocked by blocking the oil flow and thus give the possibility to hold the frame immovably at any desired height.

Abgesehen davon, daß derartige sperrbare Stoßdämpfer relativ teure Sonderbauteile darstellen, ist zu berücksichtigen, daß bei einer pneumatischen Federung von Tragenbühnen od.dgl. oftmals auf zusätzliche Stoßdämpfer verzichtet werden kann.In addition to the fact that such lockable shock absorbers are relatively expensive special components, it must be taken into account that with a pneumatic suspension of stretcher platforms or the like. additional shock absorbers can often be dispensed with.

Deshalb ist es Aufgabe der Erfindung, Tragenliegengestelle der eingangs angegebenen Art dahingehend zu verbessern, daß eine Arretierung der im Normalfalle abgefederten Gestellteile in jeder gewünschten und durch die Konstruktion der pneumatischen Federung zugelassenen Höhe bei einfachster Bedienung möglich ist.It is therefore an object of the invention to improve stretcher frames of the type specified at the outset in such a way that the frame parts, which are normally sprung, can be locked in any desired height and permitted by the construction of the pneumatic suspension with simple operation.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das gefederte Gestellteil mit einem Gestängeteil verbunden ist, welches bei Federungshüben des gefederten Gestellteiles eine Längsverschiebung ausführt und gegenüber dem ungefederten Gestellteil bzw. Boden mittels einer pneumatisch betätigbaren Bremse feststellbar ist, welche das mit ihr zusammenwirkende Gestängeteil mittels ihrer Bremsbacken spannfutterartig umgreift.This object is achieved in that the spring-loaded frame part is connected to a linkage part which executes a longitudinal displacement when the spring-loaded frame part is lifted and can be locked relative to the unsprung frame part or floor by means of a pneumatically actuated brake, which uses the rod part which interacts with it Grips brake shoes like a chuck.

Die Erfindung geht von dem allgemeinen Gedanken aus, daß das gefederte Gestellteil bei Krankentragenbühnen u.dgl. zur Verhinderung von Schlingerbewegungen in Hubrichtung mit Führung abgestützt ist, so daß lediglich nur etwa vertikale Bewegungen der Liegefläche zugelassen werden und dieselbe auch beim Einfedern ihre eingestellte Horizontallage oder Schrägstellung (z. B. Kopf-Tief-Lage) unverändert beibehält. Aufgrund dieser Bauweise genügt es, ein einziges unmittelbar oder über ein Hubgestell mit dem gefederten Gestellteil verbundenes Gestängeteil zur Ausschaltung der Federung zu arretieren.The invention is based on the general idea that the sprung frame part on stretcher platforms and the like. is supported with a guide to prevent lurching movements in the lifting direction, so that only approximately vertical movements of the lying surface are permitted and the same maintains their set horizontal position or inclined position (e.g. head-down position) unchanged even when deflected. Because of this design, it is sufficient to lock a single linkage part which is connected directly or via a lifting frame to the sprung frame part in order to switch off the suspension.

Dabei kann die Bremse bevorzugt mit einem Gestängeteil des pneumatischen Federungsaggregates zusammenwirken, beispielsweise mit der Kolbenstange eines zur federnden Abstützung des Tragengestelles dienenden Kolben-Zylinder-Aggregates oder auch mit einem Stößel, welcher federnd auf einer vom pneumatischen Medium gestützten Membrane oder einem Pneumatikbalg abgestützt ist.The brake can preferably cooperate with a linkage part of the pneumatic suspension unit, for example with the piston rod of a piston-cylinder unit serving to provide resilient support for the support frame, or also with a plunger which is resiliently supported on a diaphragm supported by the pneumatic medium or a pneumatic bellows.

Die Bremsbacken wirken vorzugsweise mit einem pneumatisch betätigbaren Schieberteil mittels Keilflächen zusammen. Bei derartiger Anordnung können auch bei geringen Pneumatikdrucken durch entsprechend spitzwinkelig angeordnete Keilflächen sehr hohe Bremskräfte erreicht werden. Zweckmäßigerweise wird dabei das Schieberteil in die Bremse betätigender Richtung pneumatisch und in die Bremse lösender Richtung mittels gespannter Feder beaufschlagt, so daß das die Bremse betätigende Pneumatikorgan lediglich während einer Herzmassage oder einer sonstigen die feste Lagerung des Patienten erfordernden Behandlung unter Druck gesetzt werden muß und die Bremse bei Nichtgebrauch sicher in ihrer unwirksamen Stellung gehalten wird, ohne unerwünschte Reibung zu verursachen.The brake shoes preferably cooperate with a pneumatically actuated slide part by means of wedge surfaces. With such an arrangement, very high braking forces can be achieved even at low pneumatic pressures by means of wedge surfaces arranged at an acute angle. Advantageously, the slide part is actuated pneumatically in the brake actuating direction and in the brake releasing direction by means of a tensioned spring, so that the pneumatic actuator actuating the brake only has to be pressurized during a cardiac massage or other treatment requiring the fixed positioning of the patient and the Brake is held securely in its inactive position when not in use, without causing undesirable friction.

Nachfolgend wird die Erfindung anhand der Zeichnung noch genauer erläutert, in der bevorzugte Ausführungsbeispiele der Erfindung in schematisierter Form dargestellt sind.The invention is explained in more detail below with reference to the drawing, in which preferred exemplary embodiments of the invention are shown in schematic form.

Dabei zeigtIt shows

  • Fig. 1 eine Seitenansicht eines pneumatisch gefederten Tragenlagerungsgestelles,1 is a side view of a pneumatically suspended stretcher rack,
  • Fig. 2 eine abgewandelte Ausführungsform eines erfindungsgemäßen Tragenlagerungsgestelles undFig. 2 shows a modified embodiment of a stretcher rack according to the invention and
  • Fig. 3 ein schematisiertes Schnittbild der pneumatisch betätigbaren Bremse.Fig. 3 is a schematic sectional view of the pneumatically actuated brake.

Einander entsprechende Teile haben in allen Figuren gleiche Bezugszeichen.Corresponding parts have the same reference numerals in all figures.

Nach Fig. 1 ist auf dem Boden eines Krankenfahrzeuges eine Krankentragenbühne 1 angeordnet, welches im wesentlichen aus einem Rahmengestell 2 besteht, dessen beide Längsträger 3 als U-Schienen ausgebildet sind, in denen ein einen oberen Gestellrahmen bildender Lagerungsschlitten 4 in Längsrichtungrichtung verschiebbar mittels Rollen 5 geführt ist.According to Fig. 1, a stretcher platform 1 is arranged on the floor of an ambulance, which essentially consists of a frame 2, the two longitudinal beams 3 of which are designed as U-rails, in which a positioning slide 4 forming an upper frame can be displaced in the longitudinal direction by means of rollers 5 is led.

Der Tragenlagerungsschlitten 4 dient zur Aufnahme einer Krankentrage 6, die ihrerseits mittels ihrer Füße 7 auf den Längsschienen des Schlittens 4 aufruht und auf demselben arretiert werden kann.The stretcher sled 4 serves to accommodate a stretcher 6, which in turn rests on the longitudinal rails of the sled 4 by means of its feet 7 and can be locked thereon.

Das Rahmengestell 2 und damit die gesamte Krankenthagenbühne 1 ist an ihrem der nicht dargestellten Hecktür des Krankenfahrzeuges zugewandten hinteren Ende in einem Gelenk 8 mit waagerechter Querachse am Boden schwenkbar gelagert und an seinem vorderen Ende durch ein Scherensystem 9, welches z. B. aus zwei beiderseits der lotrechten Mittelebene der Krankentragenbühne angeordnete Lenkerpaare gebildet wird, in Höhenrichtung geführt bzw. gegen seitliches Ausweichen gesichert. Bei entsprechend stabiler Ausbildung des Gelenkes 8 kann das Scherensystem 9 gegebenenfalls auch entfallen.The frame 2 and thus the entire Krankenthagenbühne 1 is pivotally mounted on its rear end facing the rear door of the ambulance, not shown, in a joint 8 with a horizontal transverse axis on the ground and at its front end by a scissor system 9, which, for. B. is formed from two sides of the vertical median plane of the stretcher handlebar pairs, guided in the vertical direction or secured against lateral evasion. With a correspondingly stable design of the joint 8, the scissors system 9 may also be omitted.

Zur Abfederung des Tragengestelles dient eine pneumatische Federung 10, welche einen mit dem Rahmengestell 2 verbundenen Stößel 12 aufweist, welcher in an sich bekannter Weise auf der pneumatisch abgestützten Membrane 13 eines pneumatischen Druckgefäßes 14 abgestützt ist. Dem Innenraum des Druckgefäßes 14 kann über eine Leitung 15 pneumatisches Medium von einer nicht dargestellten Druckquelle zugeführt werden.A pneumatic suspension 10, which has a plunger 12 connected to the frame 2, which is supported in a manner known per se on the pneumatically supported membrane 13 of a pneumatic pressure vessel 14 serves to cushion the support frame. Pneumatic medium can be supplied to the interior of the pressure vessel 14 via a line 15 from a pressure source, not shown.

Das Druckgefäß 14 ist an einem am Boden montierten Bock 16 befestigt, an dem außerdem eine pneumatisch betätigbare Bremse 17 angeordnet ist, die mit dem Stößel 12 zusammenwirkt. Bei Arretierung des Stößels 12 wird das Rahmengestell 2 unfederbar festgehalten.The pressure vessel 14 is fastened to a bracket 16 mounted on the floor, on which a pneumatically actuable brake 17 is also arranged, which cooperates with the tappet 12. When the plunger 12 is locked, the frame 2 is held in place without springing.

Bei der in Fig. 2 dargestellten Krankentragenbühne ist das Rahmengestell 2 mittels eines Scherengestelles 20 abgestützt, dessen Scherenarme an ihren in der Zeichnung linken Enden am Rahmengestell 2 bzw. einem Sockelrahmen 21 um Querachsen schwenkbar gelagert sind, während die anderen Enden der Scherenarme am Rahmengestell 2 sowie am Sockelrahmen 21 in Führungskulissen 22 schwenk- und verschiebbar gelagert sind. Damit kann das Scherengestell 20 mittels eines pneumatischen Kolben-Zylinder-Aggregates 23, welches mit einer nicht dargestellten pneumatischen Druckquelle verbunden und zwischen dem einen Scherenarm des Scherengestelles 20 sowie dem Boden bzw. dem Sockelrahmen 21 angeordnet ist, in verschiedene Höhen verstellt werden, wobei aufgrund der Kompressibilität des Pneumatikmediums in jeder Höheneinstellung eine Federung des Rahmengestelles 2 möglich bleibt.In the stretcher platform shown in Fig. 2, the frame 2 is supported by a scissor frame 20, the scissor arms are pivotally mounted on their left ends in the drawing on the frame 2 or a base frame 21 about transverse axes, while the other ends of the scissor arms on the frame 2nd and on the base frame 21 are pivotally and displaceably mounted in guide links 22. The scissor-type frame 20 can thus be adjusted to different heights by means of a pneumatic piston-cylinder unit 23, which is connected to a pneumatic pressure source (not shown) and is arranged between the one scissor arm of the scissor-type frame 20 and the floor or the base frame 21 the compressibility of the pneumatic medium in any height setting, a suspension of the frame 2 remains possible.

Zur Ausschaltung der Federung ist hier am Zylinder des Kolben-Zylinder-Aggregates die pneumatisch betätigte Bremse 17 angeordnet, welche mit der Kolbenstange 23' des Kolben-Zylinder-Aggregates zusammenwirkt.To switch off the suspension, the pneumatically actuated brake 17 is arranged on the cylinder of the piston-cylinder unit, which cooperates with the piston rod 23 'of the piston-cylinder unit.

Gemäß Fig. 3 besitzt die pneumatisch betätigbare Bremse ein ringförmiges Gehäuse 25, dessen axiale Öffnung vom Stößel 12 (vgl. Fig. 1) bzw. der Kolbenstange 23' (vgl. Fig.2) durchsetzt wird. Innerhalb des Gehäuses 25 befindet sich ein volumenveränderlicher Ringraum 26, welcher mittels eines ringförmigen Kolbens 27 abgeschlossen ist, der innerhalb des Gehäuses 25 verschiebbar angeordnet ist. Eine Rückstellfeder 28 sucht den Ringkolben 27 in Fig. 3 nach oben in eine Ruhelage zu schieben, während in den Ringraum 26 eingeleitetes Pneumatikmedium den Ringkolben 27 gegen die Kraft der Feder 28 nach unten zu schieben vermag. Am Kolben 27 ist ein Zylinderteil 29 angeordnet, welches mittels entsprechender Lagerschalen od.dgl. zur Lagerung von Kugeln 30 dient, die bei Verschiebung des Kolbens 27 über die Rückseite von Bremskeilen 31 geschoben werden, die an der inneren Umfangswand des Gehäuses 25 angeordnet sind und aufgrund ihres keilförmigen Querschnittes bei Verschiebung der Kugeln 30 nach aufwärts zunehmend gegen die Kolbenstange 23' bzw. den Stößel 12 angedrückt werden und denselben unbeweglich gegenüber dem Gehäuse 25 festhalten. Wird der Kolben bei Druckverminderung im Ringraum 26 durch die Feder 28 wiederum zurückgeschoben, können die von den Kugeln 30 nunmehr freigegebenen Bremskeile 31 unter Einwirkung nicht dargestellter Rückholfedern von der Kolbenstange 23' bzw. dem Stößel 12 abheben, d.h. eine Federung der Krankentragenbühnen ist wiederum möglich.According to FIG. 3, the pneumatically actuable brake has an annular housing 25, the axial opening of which is penetrated by the plunger 12 (see FIG. 1) or the piston rod 23 '(see FIG. 2). Inside the housing 25 there is an annular space 26 which can be changed in volume and which is closed off by means of an annular piston 27 which is arranged displaceably within the housing 25. A return spring 28 tries to push the annular piston 27 upward into a rest position in FIG. 3, while pneumatic medium introduced into the annular space 26 is able to push the annular piston 27 downward against the force of the spring 28. A cylinder part 29 is arranged on the piston 27, or the like by means of corresponding bearing shells. serves to support balls 30 which are pushed over the back of brake wedges 31 when the piston 27 is displaced, which are arranged on the inner peripheral wall of the housing 25 and, due to their wedge-shaped cross-section, when the balls 30 are displaced upwards increasingly against the piston rod 23 ' or the plunger 12 are pressed and hold it immovably with respect to the housing 25. If the piston is pushed back again by the spring 28 when the pressure in the annular space 26 is reduced, the brake wedges 31 now released by the balls 30 can lift off from the piston rod 23 'or the plunger 12 under the action of return springs (not shown), i.e. a suspension of the stretcher platforms is again possible.

Claims (4)

1. Support for invalids' beds, in particular a stretcher support or treatment table in ambulances or the like, with pneumatic springing which optionally also permits vertical adjustment of the sprung support part, and also with a possibility for blocking the sprung support part to render it vertically immovable, characterised in that the sprung support part (2) is connected with a rod part (12, 13') which executes a longitudinal displacement during sprung strokes of the sprung support part (2) and can be fixed relative to the non-sprung support part (21) or the floor by means of a pneumatically actuatable brake (17), which engages with its brake jaws (31) in chuck-like manner around the rod part (12, 23') which cooperates with it.
2. Support for invalids' beds in accordance with claim 1, characterised in that the sprung support part (2) is compulsorily guided approximately vertically relative to the non-sprung support part (21) and is resiliently supported by means of a single pneumatic spring unit (10, 23), the rod part (12, 23) of which, which is supported on the pneumatic medium, cooperates with the brake (15).
3. Support for invalids' beds in accordance with one of the claims 1 and 2, characterised in that the brake jaws (31) cooperate with a pneumatically actuatable slider part (27, 29, 30) by means of wedge surfaces.
4. Support for invalids' beds in accordance with claim 3, characterised in that the slider part (27, 29, 30) is pneumatically loadable in the brake (17) actuating direction and is urged in the brake (17) releasing direction by means of a stressed spring (28).
EP84103873A 1984-01-24 1984-04-07 Support for invalid beds, in particular support for stretcher Expired EP0150254B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103873T ATE40288T1 (en) 1984-01-24 1984-04-07 STRETCHER FRAME, PARTICULARLY STRETCHER PLATFORM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8401865U 1984-01-24
DE8401865 1984-01-24

Publications (3)

Publication Number Publication Date
EP0150254A2 EP0150254A2 (en) 1985-08-07
EP0150254A3 EP0150254A3 (en) 1986-12-03
EP0150254B1 true EP0150254B1 (en) 1989-01-25

Family

ID=6762713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103873A Expired EP0150254B1 (en) 1984-01-24 1984-04-07 Support for invalid beds, in particular support for stretcher

Country Status (3)

Country Link
EP (1) EP0150254B1 (en)
AT (1) ATE40288T1 (en)
DE (1) DE3476333D1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7657953B2 (en) 2005-11-17 2010-02-09 Hill-Rom Services, Inc. Birthing bed calf support
US9009893B2 (en) 1999-12-29 2015-04-21 Hill-Rom Services, Inc. Hospital bed
IT202100030476A1 (en) * 2021-12-02 2022-03-02 Francesco Dadone HANDLING SYSTEM OF A STRETCHER SUPPORT BASE

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203032B (en) * 1987-02-12 1990-05-02 Hoskins Ltd Resiliently suspended load carrier
FR2636230B1 (en) * 1988-09-15 1990-11-02 Heuliez Henri France Design SELF-CARRIER SUPPORT DEVICE FOR LOGE STRETCHER, PARTICULARLY IN A SANITARY VEHICLE
DE4340960C1 (en) * 1993-12-01 1994-11-10 Siemens Ag Patient-bearing device for medical examination units
DE19814233A1 (en) * 1998-03-30 1999-10-07 Mark Hanke Hospital stretcher transport trolley with lifters
US6282738B1 (en) 1998-08-07 2001-09-04 Hill-Rom, Inc. Ob/Gyn stretcher
US7296312B2 (en) 2002-09-06 2007-11-20 Hill-Rom Services, Inc. Hospital bed
ES2642418B2 (en) * 2017-05-12 2018-07-09 Kartsana, Sl ANCHORAGE SYSTEM OF A STRETCHER
WO2023129136A1 (en) * 2021-12-28 2023-07-06 Jelka, Llc Ambulance shock-absorbing platform for stretcher

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1910111C2 (en) * 1969-02-28 1971-03-04 Binz & Co Stretcher platform for ambulances
DE2552344B2 (en) * 1975-11-21 1979-09-06 Christian Miesen Fahrzeug- Und Karosseriewerk Gmbh, 5300 Bonn A spring-loaded frame which is arranged in an ambulance and can be adjusted to different heights within the sick bay by a lifting drive
DE2948005C2 (en) * 1979-11-29 1986-05-07 Keiper Dynavit GmbH & Co, 6750 Kaiserslautern Bracket for a seat support

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9009893B2 (en) 1999-12-29 2015-04-21 Hill-Rom Services, Inc. Hospital bed
US7657953B2 (en) 2005-11-17 2010-02-09 Hill-Rom Services, Inc. Birthing bed calf support
US7676868B2 (en) 2005-11-17 2010-03-16 Hill-Rom Services, Inc. Birthing bed foot support release handle
IT202100030476A1 (en) * 2021-12-02 2022-03-02 Francesco Dadone HANDLING SYSTEM OF A STRETCHER SUPPORT BASE

Also Published As

Publication number Publication date
EP0150254A2 (en) 1985-08-07
DE3476333D1 (en) 1989-03-02
EP0150254A3 (en) 1986-12-03
ATE40288T1 (en) 1989-02-15

Similar Documents

Publication Publication Date Title
DE2538411C3 (en) Stretcher storage frame with liftable, spring-loaded stretcher platform
DE3225354C2 (en) Wheelchair for the disabled
EP0150254B1 (en) Support for invalid beds, in particular support for stretcher
DE10238059B4 (en) spring element
WO1986006053A1 (en) Lifting device
DE102011108347B4 (en) operating table
EP0139939A1 (en) Seat support for chairs, particularly office swivel chairs
DE19753412A1 (en) Four or five wheeled fork lift truck
DE4016497A1 (en) Fork-lift truck with tilting fork support frame - has roof of driver's cab supported on hydraulic cylinders
DE4227954A1 (en) Tricycle vehicle, in particular industrial truck
DE3710776A1 (en) Pallet truck with a steerable drive section, and a vertically movable load section guided on the latter
DE19821021C2 (en) Framework for a wheelchair
DE2536178A1 (en) SAFETY DEVICE FOR TRANSVERSIBLE VEHICLES
DE8401865U1 (en) Sick bed frame, in particular stretcher platform
DE3009195C2 (en) A lift truck that is divided transversely within the wheel base
DE2936617C2 (en)
DE19524075C1 (en) Braking device for an industrial truck
AT500201A2 (en) DEVICE FOR SECONDARY SUSPENSION OF A VEHICLE BOX IN A RAIL VEHICLE WITH AN ACTIVE SPRING ELEMENT
DE2335377C3 (en) Ambulance
DE19604226A1 (en) Utility vehicle for stacking goods
DE2361623C3 (en)
EP4029756B1 (en) Footrest with height adjustable footplate for guiding a vehicle
DE2335741B2 (en) FRAME ARRANGED IN A EMERGENCY TRANSPORT VEHICLE, ADJUSTABLE IN DIFFERENT HEIGHT POSITIONS, FOR ACCOMMODATION OF A STRETCHER
DE10114702C1 (en) Height adjustable patient support has tilting moment received by support parallel to lifting axis
DE102016013725A1 (en) Device for fixing a movable transport device and / or for coupling with units and traction devices of a transport system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT DE FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19870122

17Q First examination report despatched

Effective date: 19880325

ITF It: translation for a ep patent filed

Owner name: LENZI & C.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT NL SE

REF Corresponds to:

Ref document number: 40288

Country of ref document: AT

Date of ref document: 19890215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3476333

Country of ref document: DE

Date of ref document: 19890302

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19900308

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900331

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19900417

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19900423

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19900425

Year of fee payment: 7

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19900430

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910407

Ref country code: AT

Effective date: 19910407

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19910408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19911101

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19911230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 84103873.0

Effective date: 19911108