EP3400922A1 - Vorrichtung zum absorbieren eines aufpralls am heck eines fahrzeuges mit einer faltbaren rampe - Google Patents

Vorrichtung zum absorbieren eines aufpralls am heck eines fahrzeuges mit einer faltbaren rampe Download PDF

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Publication number
EP3400922A1
EP3400922A1 EP17000795.9A EP17000795A EP3400922A1 EP 3400922 A1 EP3400922 A1 EP 3400922A1 EP 17000795 A EP17000795 A EP 17000795A EP 3400922 A1 EP3400922 A1 EP 3400922A1
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EP
European Patent Office
Prior art keywords
brace
interlocking
vehicle
main
device under
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.)
Pending
Application number
EP17000795.9A
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English (en)
French (fr)
Inventor
Miroslav Bartos
Marek HUISL
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.)
API CZ sro
Original Assignee
API CZ sro
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 API CZ sro filed Critical API CZ sro
Priority to EP17000795.9A priority Critical patent/EP3400922A1/de
Publication of EP3400922A1 publication Critical patent/EP3400922A1/de
Pending legal-status Critical Current

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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
    • 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
    • A61G3/061—Transfer using ramps, lifts or the like using ramps

Definitions

  • the invention concerns a device absorbing impact on the rear part of a vehicle equipped with a foldable ramp designed particularly to move manual and electric wheelchairs into and out of a vehicle through the rear door.
  • the foldable ramp takes up as little space inside the vehicle as possible and that normal operation of the vehicle is possible when the ramp is folded. It is also necessary to make the control of folding of the ramp in and out simple, safe and physically undemanding even for persons who are not physically strong or who may have certain limitations due to their health condition or age.
  • the entry platform is attached to the edge of the floor well by means of a pivotal hinge. If the platform is made of one part, after the wheelchair drives into the vehicle, the platform is lifted to a vertical transport position between the wheelchair and the door and it is locked with a safety latch. After the wheelchair moves out of the vehicle, the platform is folded into the vehicle, while the pivotal hinge is moved into another height configuration, and the platform covers the floor well. In this position there is a luggage room created in the rear part of the vehicle corresponding to common vehicles, with no limitation of access. If the platform is made of two parts there is no need to change the height configuration of the pivotal hinge. In the entry position and in the transport position both parts are in an interlocking position. After the wheelchair moves out of the vehicle the lock is released and the second part of the platform is folded on the floor well, while the first part creates the rear face.
  • the trajectory of this movement is defined by guiding grooves created in the tiltable side parts and in the carriers and by pins that engage into the guiding grooves.
  • the vertical position of the entry platform is called the transport position. The rear door in this position is closed and the wheelchair with the transported person is located and secured in front of the entry platform arrested in the transport position.
  • the deformation is directed inside the rear part of the vehicle, i.e. where the passenger is sitting in the wheelchair and the passenger is only protected with the rear door and the entry platform of the foldable ramp in the vertical transport position.
  • this is not sufficient from the viewpoint of safety of the transported persons.
  • even small impacts may deform the rear part of the vehicle and make it wider from the center to the sides, which means that a relatively small impact may cause a damage requiring an extensive repair of the rear part.
  • This invention seeks to eliminate the shortcomings described above and to create a device for efficient absorption of impacts on the rear part of vehicles provided with a foldable ramp.
  • the device consists of two interlocking modules.
  • Each interlocking module is situated between the end of the horizontal brace of the bottom part of the foldable ramp and the adjoining main bearer.
  • Each interlocking module consists of a fixed interlocking element connected with the main bearer and a moving interlocking element connected with the brace and moving with it, while in the transport position the bottom parts of the interlocking elements mutually snap in.
  • the interlocking module thus forms a firm connection between the main bearers and the brace, horizontally in the driving direction of the vehicle and also in the direction perpendicular to it.
  • the force of an impact on the rear side is transferred via the interlocking modules to the main bearers in the driving direction and, at the same time, the interlocking modules prevent deformation of the body in the direction perpendicular to the driving direction, i.e. from the center to the sides.
  • the fixed interlocking element is not connected directly to the main bearer but to a bracket connected with the main bearer.
  • the bracket may also have an additional function as we will describe below.
  • the fixed interlocking element consists of a dowel pin linked with a retainer and the movable interlocking element consists of the side wall of the brace provided with a groove and a stop, while in the transport position the dowel pin engages in the groove and rests on the stop and the retainer falls behind the side wall inside the brace.
  • the brace is made out of a hollow steel U-shaped section with its open side towards the bottom part of the foldable ramp.
  • the vertical retainer is L-shaped, its one arm forming the retainer and the other arm is attached to the bracket connected to the main bearer.
  • bracket has the base attachable to the end of the main bearer and its arm is perpendicular to the base in the extended direction of the main bearer towards the end of the brace, while the fixed interlocking element is attached to the arm of the bracket.
  • bracket arm is provided with a front hitch with openings, arranged in parallel with the base, and with an upper hitch with openings, arranged perpendicularly to the base, with a deformation element between the front hitch and the base, which is attached to the hitches with screws placed in the openings.
  • the device under this invention consist in the fact that even if the impact hits the center of the rear part of the vehicle the force will be transferred to the lengthwise main bearers with deformation elements and an extensive deformation of the vehicle in the driving direction will be prevented. At the same time, the device under this invention prevents deformation of the rear part also in the transversal direction from the center to the sides.
  • the vehicle 1 is in its rear part, i.e. in the luggage compartment, provided with a lowered floor well 2 which is embedded in the floor between two main bearers 3 , 3' arranged lengthwise under the sides of the vehicle 1 and under the rear wheel houses. Ends of the main bearers 3 , 3 ' are linked with deformation elements 20 that carry a left segment of the bumper 23 and a right segment of the bumper 23' .
  • a platform-like bottom part 6 of the foldable ramp 4 is pivotally attached on hinges to the rear edge of the lowered floor well 2 .
  • the bottom part 6 has tiltable side parts revolving on hinges and thus the bottom part 6 moves from the transport position A to the entry position B and vice versa.
  • the tiltable side parts are provided with moving carriers connected with the entry platform 5 . When the bottom part 6 is in the transport position A the carriers can be used to fold the platform 5 into the vehicle on edges of the lowered floor well 2 , into the so-called passive position not shown in Figures 1 - 9 .
  • the foldable ramp 4 is also provided with a system of pulleys that conduct ropes attached to springs to ensure smooth movement of the foldable ramp 4 between the individual working positions.
  • the bottom part 6 of the foldable ramp 4 is provided with a horizontal brace 7 .
  • the brace 7 is supposed to retain an impact on the rear part of the vehicle 1 and it consists of a steel "U" section with its open side towards the bottom part 6 of the foldable ramp 4 and it stretches all along its length.
  • the brace 7 can have a number of other possible embodiments.
  • interlocking modules that arrest the brace 7 in relation to the main bearers 3 , 3 ' in the transport position A and create a firm connection between them that prevents displacement of the brace 7 and the whole bottom part 6 inside towards the front part of the vehicle 1 during impact from the back.
  • the connection is also firm in the perpendicular direction to the vehicle's driving direction 1 and thus it also prevents transverse deformation in the direction from the center to the sides.
  • Each interlocking module consists of a fixed interlocking element 8 attached to the main bearer 3 , 3 ' and from a moving interlocking element 9 attached to the brace 7 .
  • the movable interlocking element 9 moves on a trajectory in the shape of a part of a circle, jointly with the brace 7 and the bottom part 6 of the foldable ramp 4 .
  • the transport position A the movable interlocking element 9 snaps in with the fixed interlocking element 8 and the firm connection is created in the mentioned directions.
  • Figures 1 through 9 illustrate an example of embodiment in which the fixed interlocking element 8 consists of a dowel pin 10 and a related retainer 11 .
  • the dowel pin 10 is arranged horizontally and the retainer 11 is a flat slab formation arranged vertically.
  • the dowel pin 10 and the retainer 11 form an integral steel weldment.
  • the movable interlocking element 9 is integrated in the brace 7 so that the side wall 12 that closes both ends of the hollow brace 7 has an arched groove 13 that engages the dowel pin 10 .
  • At the end of the groove 13 there is radius forming the stop 14 on which rests the dowel pin 10 in the transport position A and in case of an impact it prevents displacement of the brace 7 to the front.
  • the dowel pin 10 passes through the groove 13 inside the brace 7 , along with the retainer 11 , which is at the end of the dowel pin 10 .
  • the retainer 11 rests from the inside on the side wall 12 of the brace 7 and prevents the fixed interlocking element 8 from shifting from the end of the brace 7 .
  • the fixed interlocking element 8 is connected with the main bearers 3 , 3 ', it prevents deformation of the vehicle 1 in the transverse direction perpendicular to the driving direction.
  • Another specific embodiment of the fixed interlocking element 8 and moving interlocking element 9 may feature signs of inverse kinematics or it may be resolved by another method obvious to persons skilled in the art.
  • FIG. 1 through 9 show only one interlocking module, specifically at the left main bearer 3
  • the other interlocking module at the right main bearer 3 ' is designed identically, only as the mirror image.
  • the connection of the interlocking element 8 with the main bearers 3 , 3 ' is implemented with a bracket 15.
  • the bracket 15 is a die stamping with a flat base 16 attached to the end of the main bearer 3 , 3' .
  • the base 16 forms the right angle with the flat arm 17 that runs toward the back in the extended direction of the main bearer 3 , 3 '.
  • the fixed interlocking element 8 made of an L-section with the retainer 11 and the dowel pin 10 is welded to the arm 17 .
  • the bracket 15 is not indispensable but it is advantageous, among other things, also for placement of the deformation element 20 .
  • the fixed interlocking element 8 may be attached to the main bearer 3 , 3 ' directly or indirectly via a simple arm or strut.
  • the device under this invention may be used in vehicles equipped with a rear foldable ramp.
EP17000795.9A 2017-05-09 2017-05-09 Vorrichtung zum absorbieren eines aufpralls am heck eines fahrzeuges mit einer faltbaren rampe Pending EP3400922A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17000795.9A EP3400922A1 (de) 2017-05-09 2017-05-09 Vorrichtung zum absorbieren eines aufpralls am heck eines fahrzeuges mit einer faltbaren rampe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17000795.9A EP3400922A1 (de) 2017-05-09 2017-05-09 Vorrichtung zum absorbieren eines aufpralls am heck eines fahrzeuges mit einer faltbaren rampe

Publications (1)

Publication Number Publication Date
EP3400922A1 true EP3400922A1 (de) 2018-11-14

Family

ID=58707275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17000795.9A Pending EP3400922A1 (de) 2017-05-09 2017-05-09 Vorrichtung zum absorbieren eines aufpralls am heck eines fahrzeuges mit einer faltbaren rampe

Country Status (1)

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EP (1) EP3400922A1 (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0390431A2 (de) 1989-03-31 1990-10-03 Rodney John Brotherwood Einen Fahrgast beförderndes Fahrzeug
US5137413A (en) 1990-10-05 1992-08-11 Paul Ressler Expanded interior space and improved access mini-van
GB2275030A (en) 1993-02-16 1994-08-17 Rodney John Brotherwood Passenger carrying vehicle for invalids
WO1997002171A1 (en) 1995-07-04 1997-01-23 Rodney John Brotherwood Improvements in passenger carrying vehicles
WO2000009060A1 (de) 1998-08-11 2000-02-24 Daimlerchrysler Ag Fahrzeug mit einem zur aufnahme eines rollstuhles gegenüber dem fahrzeugboden abgesenkten ladeboden
WO2003059685A2 (en) 2002-01-15 2003-07-24 The Braun Corporation Wheelchair access system for a vehicle
WO2010003387A1 (en) * 2008-07-08 2010-01-14 Api Cz S.R.O. Foldable ramp allowing an invalid wheelchair passenger enter into a vehicle
US20140255138A1 (en) * 2013-03-07 2014-09-11 Amf-Bruns Gmbh & Co. Kg Ramp System for Installation in a Vehicle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0390431A2 (de) 1989-03-31 1990-10-03 Rodney John Brotherwood Einen Fahrgast beförderndes Fahrzeug
US5137413A (en) 1990-10-05 1992-08-11 Paul Ressler Expanded interior space and improved access mini-van
GB2275030A (en) 1993-02-16 1994-08-17 Rodney John Brotherwood Passenger carrying vehicle for invalids
WO1997002171A1 (en) 1995-07-04 1997-01-23 Rodney John Brotherwood Improvements in passenger carrying vehicles
WO2000009060A1 (de) 1998-08-11 2000-02-24 Daimlerchrysler Ag Fahrzeug mit einem zur aufnahme eines rollstuhles gegenüber dem fahrzeugboden abgesenkten ladeboden
WO2003059685A2 (en) 2002-01-15 2003-07-24 The Braun Corporation Wheelchair access system for a vehicle
WO2010003387A1 (en) * 2008-07-08 2010-01-14 Api Cz S.R.O. Foldable ramp allowing an invalid wheelchair passenger enter into a vehicle
EP2293755A1 (de) 2008-07-08 2011-03-16 Api Cz S.R.O. Faltbare rampe für den einstieg eines invaliden rollstuhlfahrers in ein fahrzeug
US20140255138A1 (en) * 2013-03-07 2014-09-11 Amf-Bruns Gmbh & Co. Kg Ramp System for Installation in a Vehicle

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