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EP0595093A1 - Device for locking or fixing an invalid lift - Google Patents

Device for locking or fixing an invalid lift Download PDF

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Publication number
EP0595093A1
EP0595093A1 EP93116290A EP93116290A EP0595093A1 EP 0595093 A1 EP0595093 A1 EP 0595093A1 EP 93116290 A EP93116290 A EP 93116290A EP 93116290 A EP93116290 A EP 93116290A EP 0595093 A1 EP0595093 A1 EP 0595093A1
Authority
EP
European Patent Office
Prior art keywords
compressed air
lift according
locking
lift
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93116290A
Other languages
German (de)
French (fr)
Other versions
EP0595093B1 (en
Inventor
Johann Santl
Achim Feige
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge AG
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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Publication of EP0595093A1 publication Critical patent/EP0595093A1/en
Application granted granted Critical
Publication of EP0595093B1 publication Critical patent/EP0595093B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
    • A61G3/06—Transfer using ramps, lifts or the like
    • 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
    • A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
    • A61G3/06—Transfer using ramps, lifts or the like
    • A61G3/062—Transfer using ramps, lifts or the like using lifts connected to the vehicle
    • 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
    • A61G2220/00—Adaptations of particular transporting means
    • A61G2220/16—Buses

Definitions

  • the invention relates to a handicapped lift in a vehicle, in particular a bus.
  • the object of the invention is to optimize the safety precautions on a handicapped lift.
  • a mechanical, compressed air or hydraulically actuated locking device for optionally locking or unlocking the lift frame with the vehicle frame in the floor level of the vehicle.
  • the upper end position of the lift in the floor level of the vehicle is not precisely determined by the end position of a hydraulic or compressed air-operated drive, which may have leaks, or an electric drive.
  • the fluid-related end position is redundantly secured by the mechanical locking device according to the invention, so that even if the fluid system fails, or due to twisting of the lift platform or the vehicle floor frame due to vibration when driving on bad roads, the lift cannot sink.
  • the locking position is achieved by a compressed air cylinder designed as a spring-loaded cylinder, the locking position here also being determined solely by the mechanical compression spring, independently of the functioning of the compressed air or hydraulic transmitter. This also ensures that there is no drop in the handicap lift level from the floor level of the bus.
  • the unlocking between the vehicle frame and the lift frame is then carried out by applying compressed air to the piston surface opposite the compression spring, in an emergency from an external compressed air source.
  • the locking element is expediently provided as an end piece of the piston rod of the compressed air cylinder, the end being complementary to the conical, spherical or wedge-shaped receptacle in the lift frame.
  • the cylindrical part of the locking element connected to the piston rod is guided and supported in a bearing bush fixed in the vehicle frame, or the cylinder is guided in the bearing bush with a centering projection.
  • FIG. 1 and 2 show a lift frame 1 with a receiving element 3 arranged therein that has a conical or spherical receiving bore 17.
  • a bearing bush 5 is arranged in the vehicle frame 2, in which a cylindrical locking element 4 is mounted so as to be longitudinally displaceable.
  • the locking element 4 is formed at its free end 18 complementary to the receiving bore 17 of the receiving element 3.
  • the locking element 4 is the end piece of the piston rod 16 connected to the piston 15.
  • the piston 15 is arranged in the compressed air cylinder 7 designed as a spring-loaded cylinder, a compression spring 8 being installed on the side opposite the piston rod, which presses the locking position of the locking element 4 into the receiving element 3 of the lift frame 1 causes.
  • the compressed air cylinder 7 is fastened to a holder 6 of the vehicle frame 2.
  • the compressed air cylinder 7 is acted on via the line 14, in which a 3/2-way valve 13 is installed.
  • a throttle 10 or a can be inserted into a line 14 adjustable throttle valve 12 can be mounted, with the throttle valve 12 the locking and unlocking, or only one or the other direction of actuation can be damped.
  • a ventilation line 9 is also provided, which relieves the secondary space of the spring-loaded cylinder.
  • the compressed air cylinder 7 is centered and supported in the bearing bush 5.
  • An emergency solution can be provided via a filling valve 11 from an external compressed air source if the vehicle compressed air system fails.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Lock And Its Accessories (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The invention relates to an invalid lift in a vehicle, in particular a bus. The invalid lift has a mechanical locking device operated by compressed air or hydraulically for the selective locking or unlocking of the lift frame (1) to the vehicle frame (2) in the floor plane of the vehicle. The locking device comprises a reception element (3) located on the frame (1) of the invalid lift and a locking element (4) which is located on the vehicle frame (2) via a mounting (6) and can selectively be moved into and out of the reception element (3). The reception element (3) is conical, spherical or wedge-shaped, and the locking element (4) has a complementary design. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Behindertenlift in einem Fahrzeug, insbesondere Omnibus.The invention relates to a handicapped lift in a vehicle, in particular a bus.

Es werden in zunehmendem Maße Behindertenlifte in Omnibusse eingebaut. Im Zuge dieses Trends werden an diese Lifte auch immer höhere Anforderungen gestellt.Disabled lifts are increasingly being installed in buses. In the course of this trend, increasingly higher demands are being placed on these lifts.

Der Erfindung liegt die Aufgabe zugrunde, die Sicherheitsvorkehrungen an einem Behindertenlift zu optimieren.The object of the invention is to optimize the safety precautions on a handicapped lift.

Dies wird erfindungsgemäß durch eine mechanische, druckluft- oder hydraulisch betätigte Verriegelungseinrichtung zur wahlweisen Ver- oder Entriegelung des Liftrahmens mit dem Fahrzeugrahmen in der Fußbodenebene des Fahrzeugs erreicht. Solcherart ist die obere Endstellung des Liftes in der Fußbodenebene des Fahrzeuges nicht durch die Endstellung eines hydraulischen oder druckluftbetätigten Antriebes, der Leckagen aufweisen kann, oder eines elektrischen Antriebes genau festgelegt. Vielmehr wird die fluidbedingte Endstellung durch die erfindungsgemäße mechanische Arretiereinrichtung redundant gesichert, so daß auch bei Ausfall der Fluidik, oder durch Verwindung der Liftplattform oder des Fahrzeugbodenrahmens durch Erschütterung beim Befahren schlechter Straßen, kein Absinken des Liftes möglich ist. Die Arretierstellung wird durch einen als Federspeicherzylinder ausgebildeten Druckluftzylinder erzielt, wobei die Arretierstellung auch hier unabhängig von dem Funktionieren des Druckluft- oder Hydraulikgebers allein durch die mechanische Druckfeder vorgegeben ist. So ist auch hier gewährleistet, daß es kein Absinken des Behindertenliftniveaus vom Fußbodenniveau des Omnibusses geben kann. Die Entriegelung zwischen Fahrzeugrahmen und Liftrahmen erfolgt dann durch Beaufschlagung der der Druckfeder entgegengesetzten Kolbenfläche mit Druckluft, im Notfall von einer Fremddruckluftquelle aus.This is achieved according to the invention by a mechanical, compressed air or hydraulically actuated locking device for optionally locking or unlocking the lift frame with the vehicle frame in the floor level of the vehicle. In this way, the upper end position of the lift in the floor level of the vehicle is not precisely determined by the end position of a hydraulic or compressed air-operated drive, which may have leaks, or an electric drive. Rather, the fluid-related end position is redundantly secured by the mechanical locking device according to the invention, so that even if the fluid system fails, or due to twisting of the lift platform or the vehicle floor frame due to vibration when driving on bad roads, the lift cannot sink. The locking position is achieved by a compressed air cylinder designed as a spring-loaded cylinder, the locking position here also being determined solely by the mechanical compression spring, independently of the functioning of the compressed air or hydraulic transmitter. This also ensures that there is no drop in the handicap lift level from the floor level of the bus. The unlocking between the vehicle frame and the lift frame is then carried out by applying compressed air to the piston surface opposite the compression spring, in an emergency from an external compressed air source.

In sinnvoller Weise ist das Verriegelungselement als Endstück der Kolbenstange des Druckluftzylinders vorgesehen, wobei das Ende komplementär zu der kegeligen, kugligen oder keilförmigen Aufnahme im Liftrahmen ausgebildet ist.The locking element is expediently provided as an end piece of the piston rod of the compressed air cylinder, the end being complementary to the conical, spherical or wedge-shaped receptacle in the lift frame.

Um keine Scherkräfte auf die Kolbenstange und den Kolben des Zylinders zu bekommen, ist der zylindrische Teil des mit der Kolbenstange verbundenen Verriegelungselementes in einer im Fahrzeugrahmen befestigten Lagerbuchse geführt und abgestützt, bzw. der Zylinder mit einem Zentrieransatz in der Lagerbuchse geführt.In order to avoid shear forces on the piston rod and the piston of the cylinder, the cylindrical part of the locking element connected to the piston rod is guided and supported in a bearing bush fixed in the vehicle frame, or the cylinder is guided in the bearing bush with a centering projection.

Die Erfindung ist in einem Ausführungsbeispiel dargestellt und beschrieben.The invention is shown and described in an exemplary embodiment.

Es zeigen:

Fig. 1
eine Verriegelungsvorrichtung für einen Behindertenlift in einem Fahrzeug,
Fig. 2
eine leicht modifizierte Ausführung der Verriegelungseinrichtung.
Show it:
Fig. 1
a locking device for a handicapped lift in a vehicle,
Fig. 2
a slightly modified version of the locking device.

Die Fig. 1 und 2 zeigen einen Liftrahmen 1 mit einem darin angeordneten Aufnahmeelement 3, daß eine kegelige oder kugelförmige Aufnahmebohrung 17 aufweist. Im Fahrzeugrahmen 2 ist eine Lagerbuchse 5 angeordnet, in der ein zylindrisches Verriegelungselement 4 längsverschieblich gelagert ist. Das Verriegelungselement 4 ist an seinem freien Ende 18 komplementär zu der Aufnahmebohrung 17 des Aufnahmeelementes 3 ausgebildet. Das Verriegelungselement 4 ist Endstück der mit dem Kolben 15 verbundenen Kolbenstange 16. Der Kolben 15 ist in dem als Federspeicherzylinder ausgebildeten Druckluftzylinder 7 angeordnet, wobei auf der der Kolbenstange entgegengesetzten Seite eine Druckfeder 8 eingebaut ist, die die Arretierstellung des Verriegelungselementes 4 in das Aufnahmeelement 3 des Liftrahmens 1 bewirkt. Der Druckluftzylinder 7 ist an einer Halterung 6 des Fahrzeugrahmens 2 befestigt. Soll die Verriegelung zwischen Liftrahmen 1 und Fahrzeugrahmen 2 gelöst werden, so wird der Druckluftzylinder 7 über die Leitung 14, in der ein 3/2-Wege-Ventil 13 eingebaut ist, beaufschlagt. Bei Betätigung des Behindertenliftes wird unter Einhaltung einer bestimmten Vorlaufzeit über das 3/2-Wege-Magnetventil 13 Druckluft in den Druckluftzylinder 7 geleitet, dabei wird die Druckfeder 8 zusammengedrückt und der Lift somit pneumatisch entriegelt. Um die Betätigungsgeschwindigkeit regulieren bzw. dämpfen zu können, kann in eine Leitung 14 eine Drossel 10 oder ein einstellbares Drosselventil 12 montiert werden, wobei mit dem Drosselventil 12 die Ver- und Entriegelung, oder nur jeweils die eine oder die andere Betätigungsrichtung gedämpft werden kann. Es ist weiterhin eine Entlüftungsleitung 9 vorgesehen, die den Sekundärraum des Federspeicherzylinders entlastet. In einer besonders vorteilhaften Ausführungsform ist der Druckluftzylinder 7 in der Lagerbuchse 5 zentriert und abgestützt. Über ein Füllventil 11 kann von einer Fremddruckluftquelle, bei Ausfall der Fahrzeugdruckluftanlage, eine Notloslösung erfolgen.1 and 2 show a lift frame 1 with a receiving element 3 arranged therein that has a conical or spherical receiving bore 17. A bearing bush 5 is arranged in the vehicle frame 2, in which a cylindrical locking element 4 is mounted so as to be longitudinally displaceable. The locking element 4 is formed at its free end 18 complementary to the receiving bore 17 of the receiving element 3. The locking element 4 is the end piece of the piston rod 16 connected to the piston 15. The piston 15 is arranged in the compressed air cylinder 7 designed as a spring-loaded cylinder, a compression spring 8 being installed on the side opposite the piston rod, which presses the locking position of the locking element 4 into the receiving element 3 of the lift frame 1 causes. The compressed air cylinder 7 is fastened to a holder 6 of the vehicle frame 2. If the locking between the lift frame 1 and the vehicle frame 2 is to be released, the compressed air cylinder 7 is acted on via the line 14, in which a 3/2-way valve 13 is installed. When the handicapped lift is actuated, compressed air is fed into the compressed air cylinder 7 via the 3/2-way solenoid valve 13, the compression spring 8 being compressed and the lift thus being pneumatically unlocked. In order to be able to regulate or dampen the actuation speed, a throttle 10 or a can be inserted into a line 14 adjustable throttle valve 12 can be mounted, with the throttle valve 12 the locking and unlocking, or only one or the other direction of actuation can be damped. A ventilation line 9 is also provided, which relieves the secondary space of the spring-loaded cylinder. In a particularly advantageous embodiment, the compressed air cylinder 7 is centered and supported in the bearing bush 5. An emergency solution can be provided via a filling valve 11 from an external compressed air source if the vehicle compressed air system fails.

BezugszeichenlisteReference list

11
LiftrahmenLift frame
22nd
FahrzeugrahmenVehicle frame
33rd
AufnahmeelementReceiving element
44th
VerriegelungselementLocking element
55
LagerbuchseBearing bush
66
Halterung an 2Bracket on 2nd
77
DruckluftzylinderAir cylinder
88th
DruckfederCompression spring
99
EntlüftungsleitungVent line
1010th
Drosselthrottle
1111
Füllventil (f. Notloslösung)Filling valve (for emergency solution)
1212th
DrosselventilThrottle valve
1313
3/2-Wege-Ventil3/2-way valve
1414
DruckluftleitungCompressed air line
1515
DruckluftkolbenAir pistons
1616
KolbenstangePiston rod
1717th
kegelige und kugelige Aufnahmebohrungconical and spherical mounting hole
1818th
Endstück von 4Tail of 4

Claims (10)

Behindertenlift in einem Fahrzeug, insbesondere Omnibus, gekennzeichnet durch eine mechanische, druckluft- oder hydraulisch betätigte Verriegelungseinrichtung zur wahlweisen Ver- oder Entriegelung des Liftrahmens (1) mit dem Fahrzeugrahmen (2) in der Fußbodenebene des Fahrzeugs.Disabled lift in a vehicle, in particular a bus, characterized by a mechanical, compressed air or hydraulically operated locking device for optionally locking or unlocking the lift frame (1) with the vehicle frame (2) in the floor level of the vehicle. Behindertenlift nach Anspruch 1, dadurch gekennzeichnet, daß die Verriegelungseinrichtung ein am Rahmen (1) des Behindertenliftes angeordnetes Aufnahmeelement (3) und ein am Fahrzeugrahmen (2) angeordnetes, wahlweise in das Aufnahmeelement (3) ein- oder ausfahrbares Verriegelungselement (4) aufweist.Handicapped lift according to claim 1, characterized in that the locking device has a receiving element (3) arranged on the frame (1) of the handicapped lift and a locking element (4) arranged on the vehicle frame (2), which can optionally be extended or retracted into the receiving element (3). Behindertenlift nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Aufnahmeelement (3) eine kegelige, kugelige oder keilförmige Aufnahmebohrung (17) aufweist und das Endstück (18) des Verriegelungselementes (4) dazu komplementär ausgebildet ist.Disabled lift according to claim 1 or 2, characterized in that the receiving element (3) has a conical, spherical or wedge-shaped receiving bore (17) and the end piece (18) of the locking element (4) is complementary thereto. Behindertenlift nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß an einer Halterung (6) des Fahrzeugrahmens (2) ein Druckluftzylinder (7) mit einem Druckluftkolben (15) angeordnet ist, dessen Kolbenstange (16) an ihrem freien Ende fest mit dem Verriegelungselement (4) verbunden ist.Disabled lift according to claims 1 to 3, characterized in that a compressed air cylinder (7) with a compressed air piston (15) is arranged on a holder (6) of the vehicle frame (2), the piston rod (16) of which is fixed to the locking element at its free end (4) is connected. Behindertenlift nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Verriegelungselement (4) mit seinem zylindrischen Teil in einer im Fahrzeugrahmen (2) angebrachten Lagerbuchse (5) geführt und abgestützt ist.Disabled lift according to one or more of claims 1 to 4, characterized in that the locking element (4) is guided and supported with its cylindrical part in a bearing bush (5) mounted in the vehicle frame (2). Behindertenlift nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Druckluftzylinder (7) in der Lagerbuchse (5) zentriert und abgestützt ist.Disabled lift according to one or more of Claims 1 to 5, characterized in that the compressed air cylinder (7) is centered and supported in the bearing bush (5). Behindertenlift nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Druckluftzylinder (7) als Federspeicherzylinder ausgebildet ist, wobei in der Behindertenlift mit Fahrzeug arretierten Stellung eine Druckfeder (8) auf den mit dem Verriegelungselement (4) verbundenen Kolben (15) wirksam gesetzt ist, während die nicht arretierte Stellung durch Druckluftbeaufschlagung der der Druckfeder (8) entgegengesetzten Kolbenfläche erzielt wird.Handicapped lift according to one or more of claims 1 to 6, characterized in that the compressed air cylinder (7) is designed as a spring-loaded cylinder, a pressure spring (8) on the piston (15) connected to the locking element (4) in the position locked in the vehicle locked position ) is set effective, while the unlocked position is set by Compressed air is applied to the piston surface opposite the compression spring (8). Behindertenlift nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß in der Druckluftleitung (14) ein 3/2-Wege-Ventil (13) und eine Drossel (10) oder ein einstellbares Drosselventil (12) integriert ist.Disabled lift according to one or more of claims 1 to 7, characterized in that a 3/2-way valve (13) and a throttle (10) or an adjustable throttle valve (12) is integrated in the compressed air line (14). Behindertenlift nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß dem federseitigen Raum des Druckluftzylinders (7) eine Entlüftungsleitung (9) angeschlossen ist.Disabled lift according to one or more of claims 1 to 8, characterized in that a vent line (9) is connected to the spring-side space of the compressed air cylinder (7). Behindertenlift nach einem oder mehreren der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß ein Füllventil (11) zur Druckluftbeaufschlagung des Kolbens (15) von einer Fremddruckluftquelle vorgesehen ist.Handicapped lift according to one or more of claims 1 to 9, characterized in that a filling valve (11) is provided for pressurizing the piston (15) with compressed air from an external compressed air source.
EP93116290A 1992-10-28 1993-10-08 Device for locking or fixing an invalid lift Expired - Lifetime EP0595093B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4236335A DE4236335C2 (en) 1992-10-28 1992-10-28 Device for locking or fixing a lift for the disabled
DE4236335 1992-10-28

Publications (2)

Publication Number Publication Date
EP0595093A1 true EP0595093A1 (en) 1994-05-04
EP0595093B1 EP0595093B1 (en) 2001-06-20

Family

ID=6471521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116290A Expired - Lifetime EP0595093B1 (en) 1992-10-28 1993-10-08 Device for locking or fixing an invalid lift

Country Status (3)

Country Link
EP (1) EP0595093B1 (en)
AT (1) ATE202271T1 (en)
DE (2) DE4236335C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002071995A1 (en) * 2001-03-13 2002-09-19 Suministros Y Servicios Unificados De Carroceria, S.L. Bus access platform for persons of reduced mobility
CN102744217A (en) * 2012-06-29 2012-10-24 黑龙江大学 Unlocking lifting rod mechanism used for ball bearing inner and outer lantern ring sorting and assembly machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR568610A (en) * 1923-07-12 1924-03-29 New auto-pneumatic safety lock
US3295878A (en) * 1964-07-06 1967-01-03 Dow Chemical Co Fastening apparatus
US3524334A (en) * 1969-04-21 1970-08-18 Segal Products Co Inc Gas action locking system
JPH03197243A (en) * 1989-12-26 1991-08-28 Fuji Heavy Ind Ltd Lock device of elevating platform in vertical lift device for automobile
WO1992007731A1 (en) * 1990-10-24 1992-05-14 Hogan Mfg., Inc. Wheelchair lift for railway cars

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820339A1 (en) * 1988-06-15 1989-12-21 Gustav Bruns Gmbh & Co Kg Wheel-chair access in the region of the driver's seat of passenger transport vehicles, especially buses
DE8910746U1 (en) * 1989-09-08 1989-10-19 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Boarding device for motor vehicles, in particular for buses
DE4033799A1 (en) * 1990-10-24 1992-04-30 Plm Paulmichl Fahrzeug Und Anl Method of loading wheelchair into bus - involves using raisable platform with extending rail

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR568610A (en) * 1923-07-12 1924-03-29 New auto-pneumatic safety lock
US3295878A (en) * 1964-07-06 1967-01-03 Dow Chemical Co Fastening apparatus
US3524334A (en) * 1969-04-21 1970-08-18 Segal Products Co Inc Gas action locking system
JPH03197243A (en) * 1989-12-26 1991-08-28 Fuji Heavy Ind Ltd Lock device of elevating platform in vertical lift device for automobile
WO1992007731A1 (en) * 1990-10-24 1992-05-14 Hogan Mfg., Inc. Wheelchair lift for railway cars

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 463 (M - 1183) 25 November 1991 (1991-11-25) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002071995A1 (en) * 2001-03-13 2002-09-19 Suministros Y Servicios Unificados De Carroceria, S.L. Bus access platform for persons of reduced mobility
CN102744217A (en) * 2012-06-29 2012-10-24 黑龙江大学 Unlocking lifting rod mechanism used for ball bearing inner and outer lantern ring sorting and assembly machine
CN102744217B (en) * 2012-06-29 2014-01-29 黑龙江大学 It is used to unlock the lifting lever mechanism on the sorting machine of ball bearing inner and outer rings

Also Published As

Publication number Publication date
DE4236335A1 (en) 1994-05-05
ATE202271T1 (en) 2001-07-15
EP0595093B1 (en) 2001-06-20
DE4236335C2 (en) 2000-02-24
DE59310178D1 (en) 2001-07-26

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