WO2023000053A1 - Système articulé pour marche rétractable de véhicule, procédé de montage de système articulé et véhicule de transport collectif - Google Patents

Système articulé pour marche rétractable de véhicule, procédé de montage de système articulé et véhicule de transport collectif Download PDF

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Publication number
WO2023000053A1
WO2023000053A1 PCT/BR2022/050270 BR2022050270W WO2023000053A1 WO 2023000053 A1 WO2023000053 A1 WO 2023000053A1 BR 2022050270 W BR2022050270 W BR 2022050270W WO 2023000053 A1 WO2023000053 A1 WO 2023000053A1
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WO
WIPO (PCT)
Prior art keywords
region
articulated
retractable
locking mechanism
regions
Prior art date
Application number
PCT/BR2022/050270
Other languages
English (en)
Portuguese (pt)
Inventor
Luciano Ricardo RESNER
Diego Miguel NUNES
Original Assignee
Marcopolo S.A.
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 Marcopolo S.A. filed Critical Marcopolo S.A.
Publication of WO2023000053A1 publication Critical patent/WO2023000053A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
    • B60R3/02—Retractable steps or ladders, e.g. movable under shock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D31/00—Superstructures for passenger vehicles
    • B62D31/02—Superstructures for passenger vehicles for carrying large numbers of passengers, e.g. omnibus
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/022—Stairways; Layouts thereof characterised by the supporting structure

Definitions

  • ARTICULATED SYSTEM FOR RETRACTABLE VEHICLE STEP ASSEMBLY PROCESS OF ARTICULATED SYSTEM AND TRANSPORT VEHICLE
  • the present invention describes an articulated system for a vehicle retractable step, a process for assembling the system and a public transport vehicle comprising said system. More specifically, the present invention comprises a system that provides retractable and articulated movement to at least one vehicle step by means of a locking mechanism provided with regions interconnected in an articulated way, so that the locking of the retractable movement of the step is carried out in a mechanical form by means of a lock located in one of the regions of the mechanism, which provides greater stability to the step and better distribution of the opening and closing forces of the retractable movement of the step.
  • the present invention is located in the fields of mechanical engineering, focused on the area of mechanisms for vehicle steps.
  • the retractable step systems of current public transport vehicles are moved using only one pneumatic cylinder with a diameter of 125mm, arranged in the central region of the step on the vehicle doors.
  • the stability of the step is promoted by the pneumatic cylinder, in which, depending on the load requested on the cylinder, it can move, which generates instabilities in the use of the step and the risk of accidents to the users. users.
  • the opening of the step may collide with such obstacles, which may cause failures and damage the system, such as breakages or bending in the structure of the step or any component in a way permanent.
  • Document EP2418124A1 discloses a retractable step arrangement for a vehicle having 4 arms, a first arm being pivotally connected to a support and the step through a pivot point with a second arm, where a lock is arranged at the point of articulation; a second arm pivotally connected to the support and the third arm, wherein the third arm is pivotally connected to the second arm and pivotally connected to the step; a fourth arm pivotally connected between the first arm and the second arm; and an electric actuator connected to the support and the second arm or directly to the step.
  • document EP2418124A1 does not disclose an articulated system for a retractable step comprising a locking mechanism having four regions interconnected in an articulated way and at least one piston cylinder associated in one of the four regions, in which the step is locked in a position open for use by locking a mechanical latch from one region of the locking mechanism to a latch point located on the step support structure.
  • Document CN101497326 discloses a retractable step arrangement for a vehicle having a movement locking mechanism, a step mechanism and an operating mechanism, the upper end of the locking mechanism being attached to a cross member of the vehicle, the lower end of the locking mechanism connected to the step mechanism, the step mechanism having an arm, curved bars and a rod of support, the bar being connected to the step, and one end of the operating mechanism fixed to the motion locking mechanism.
  • document CN101497326 does not disclose an articulated system for a retractable step comprising a locking mechanism having four regions interconnected in an articulated way and at least one piston cylinder associated in one of the four regions, in which the step is locked in a position open for use by locking a mechanical latch from one region of the locking mechanism to a latch point located on the step support structure.
  • Document US2006125204A1 discloses a retractable step arrangement for a vehicle having 2 articulated arms fixing a vehicle support structure to the step.
  • the arm has a mechanical lock/stop that locks the movement, eliminating the need for hydraulic locking by a cylinder.
  • document US2006125204A1 does not disclose an articulated system for a retractable step comprising a locking mechanism having four regions interconnected in an articulated way and at least one piston cylinder associated in one of the four regions, in which the step is locked in a position open for use by locking a mechanical latch from one region of the locking mechanism to a latch point located on the step support structure.
  • the present invention solves the problems of the state of the art from a system that provides retractable and articulated movement to at least one vehicle step by means of a mechanism equipped with interconnected structures in an articulated way, so that the locking of the retractable movement of the step is performed mechanically by means of a lock located in one of the structures of the mechanism, which provides greater stability to the step and better distribution of opening and closing forces of the retractable movement.
  • the present invention presents an articulated system for a vehicle retractable step comprising at least a locking mechanism equipped with at least four regions interconnected in an articulated way and at least one piston cylinder connected in at least one of the four regions , wherein said four interconnected regions provide retractable movement and mechanical locking to a step relative to a vehicle support structure.
  • the present invention presents an assembly process for an articulated system for a vehicle retractable step comprising the steps of: a. pivotal association of at least one piston cylinder to at least one upper flange of a support structure of the vehicle; B. pivotal association of the piston cylinder in at least one of four regions of a locking mechanism; and c. retractable and pivotal association of the support structure in at least one step by means of the pivotal association of at least one of the four regions of the locking mechanism to the step and the support structure.
  • the present invention presents a public transport vehicle comprising at least one body, in which the body comprises user entry and exit regions equipped with a retractable step support structure, in which the vehicle comprises an articulated system for a retractable step comprising at least a locking mechanism provided with at least four regions interconnected in an articulated way and at least one piston cylinder connected in at least one of the four regions, wherein said four interconnected regions provide retractable movement to a step relative to the vehicle support structure.
  • Figure 1 shows an embodiment of the articulated system for retractable step of the present invention, illustrating the locking mechanism comprising four regions (3, 4, 5, 6) interconnected in an articulated way that promote the retractable movement of the step ( 7), in which the mechanism is connected to the structure of the step (7), to a support structure (2) and to a piston cylinder (1).
  • Figure 2 shows an embodiment of the present invention, which illustrates the locking mechanism locking the retractable movement of the step (7) in a closed position, illustrating the articulated movement of the regions (3, 4, 5, 6) of the locking mechanism.
  • Figure 3 shows a perspective view of figure 1, illustrating an embodiment of the articulated system of the present invention.
  • Figure 4 shows an embodiment of the present invention, illustrating the locking mechanism retracting the step (7) in a closed position.
  • Figure 5 shows an embodiment of the present invention, which illustrates the locking mechanism expanding the step (7) in an open position for use by the user.
  • the present invention describes a system that provides retractable and articulated movement to a vehicle step by means of a mechanism equipped with structures interconnected in an articulated way, so that the locking of the retractable movement of the step is performed mechanically by means of a lock located in one of the structures of the mechanism, which provides greater stability of the step and better distribution of the opening and closing forces of the retractable movement.
  • the "vehicle” can be considered a public transport vehicle such as, for example, bus, minibus, van, etc., or any vehicle that has steps to access the interior of the vehicle .
  • the present invention presents an articulated system for a vehicle retractable step comprising at least a locking mechanism, the locking mechanism having at least four regions (3, 4, 5, 6) interconnected in a manner articulated and at least one piston cylinder (1) connected in at least one of the four regions (3, 4, 5, 6), in which said four interconnected regions (3, 4, 5, 6) provide retractable movement and mechanical locking to a step (7) in relation to a support structure (2) of the vehicle.
  • the support structure (2) of the vehicle comprises a step structure fixed to the vehicle body and arranged in the entry and exit regions of vehicle users, in which the structure is positioned above the retractable step (7).
  • the locking mechanism is formed by a first region (3), a second region (4), a third region (5) and a fourth region (6) interconnected to each other in a hinged manner, and connected to the step (7) and the support structure (2), so that the connection arrangement of the four regions (3, 4, 5, 6) provides retractable and articulated movement to the step (7), as well as mechanical locking of the retractable movement.
  • the first region (3) of the four interconnected regions (3, 4, 5, 6) of the locking mechanism comprises an end (3.1) pivotally connected to the step (7) and an end (3.2) ) hingedly connected to a support structure (two).
  • the structure of the first region (3) comprises straight geometry connecting the step (7) to the support structure (2).
  • a second region (4) of the four interconnected regions (3, 4, 5, 6) of the locking mechanism comprises: a flap provided with a mechanical lock (4.3); an end (4.1) connected at a point between the end (3.1) and the end (3.2) of the first region (3); and one end (4.2) connected in a third region (5).
  • the structure of the second region (4) comprises curved geometry connecting the first region (3) to the third region (5).
  • the mechanical lock (4.3) of the flap of the second region (4) comprises a limiting device attached to the flap by means of a screw having the function of limiting and locking the retractable opening movement of the step (7) in a predetermined position.
  • locking the opening movement of the step (7) is performed when the mechanical lock (4.3) is in an articulated position next to the support structure (2).
  • a third region (5) of the four interconnected regions (3, 4, 5, 6) of the locking mechanism comprises: an end (5.1) connected to the end (4.2) of the second region (4); one end (5.2) pivotally connected to a support structure (2) and one end (6.1) to a fourth region (6); a connection point (5.3) articulated with the piston cylinder (1) between the end (5.1) and the end (5.2); and a locking flap (5.2) for the movement of the mechanical lock (4.3).
  • the locking tab (5.2) of the third region (5) comprises a structure that limits the movement of the articulated opening of the mechanical lock (4.3) of the second region (4), since the locking tab (5.2 ), when coming into contact with the mechanical lock (4.3) in a predetermined position of the retractable opening movement of the step (7), limits the joint movement of the second region (4) and, consequently, limits the movement of all four regions (3, 4, 5, 6) of the locking mechanism.
  • the structure of the third region (5) comprises curved boomerang-type geometry.
  • the end (5.1) of the third region (5) is connected to the end (4.2) of the second region (4) and the end (5.2) of the third region (5) is hingedly connected to the support structure ( 2) and to the end (6.1) of a fourth region (6).
  • the lower end of the piston cylinder (1) is attached to a connection point (5.3) articulated between the end (5.1) and the end (5.2) of the third region (5).
  • the upper end of the piston cylinder is the upper end of the piston cylinder
  • a fourth region (6) of the four interconnected regions (3, 4, 5, 6) of the locking mechanism comprises an end (6.1) hingedly connected to a support structure
  • the fourth region (6) pivotally connects the step (7) to the support structure (2).
  • the structure of the fourth region (6) comprises curved geometry and is provided with at least one projection (6.3) that assists in locking the opening movement of the step (7).
  • the retractable movement of the step (7) is limited in an open position of use by locking the mechanical lock (4.3) of the flap of the second region (4) next to the locking flap (5.2) of the third region (5) at a point located next to the support structure (2), that is, when the locking flap (5.2) comes into contact with the mechanical lock (4.3) during the retractable opening movement of the step (7).
  • Said mechanical movement limitation performed by the system of the present invention provides greater stability to the step (7) and better distribution of the opening and closing forces of the retractable movement of the step (7), since the stability of the step (7) does not depend on the work done by the piston cylinder (1), but on the mechanical locking of the mechanical lock (4.3) next to the locking tab (5.2).
  • the present invention presents an assembly process for an articulated system for a vehicle retractable step comprising the steps of: a. articulated association of at least one piston cylinder (1) in at least one upper flap (2.1) of a support structure (2) of the vehicle; B. articulated association of the piston cylinder (1) in at least one of four regions (3, 4, 5, 6) of a locking mechanism; and c. retractable and articulated association of the support structure (2) in at least one step (7) through the articulated association of at least one of the four regions (3, 4, 5, 6) of the locking mechanism to the step (7) and to the support structure (2).
  • the retractable and articulated association of the support structure (2) to the step (7) is provided by a locking mechanism provided with regions (3, 4, 5, 6) articulately interconnected with the step (7), with the support structure (2) and with at least one piston cylinder (1).
  • the locking mechanism is formed by a first region (3), a second region (4), a third region (5) and a fourth region (6) interconnected to each other in a hinged manner, and connected to the step (7) and the support structure (2), so that the connection arrangement of the four regions (3, 4, 5, 6) provides retractable and articulated movement to the step (7), as well as mechanical locking of the retractable movement.
  • said association of the locking mechanism to the step (7) and the support structure (2) comprises the following steps: The. articulated association of one end (3.1) of the first region (3) of the locking mechanism to the step (7) and articulated association of one end (3.2) of the first region (3) with the support structure (2); B. pivotal association of one end (4.1) of the second region (4) of the locking mechanism at a point between the end (3.1) and the end (3.2) of the first region (3), and pivotal association of one end (4.2) to a third region (5) of the locking mechanism; ç.
  • the third region (5) comprises a locking flap (5.2) provided with a structure that limits the movement of the hinged opening of a mechanical lock (4.3) of the second region (4), since the locking flap locking (5.2), when in contact with the mechanical lock (4.3) in a predetermined position of the retractable opening movement of the step, limits the joint movement of the second region (4) and, consequently, limits the movement of all four regions (3, 4, 5, 6) of the locking mechanism.
  • said assembly of the locking mechanism allows the step (7) to move in an articulated and retractable manner and be limited and locked mechanically when the locking flap (5.2) comes into contact with the mechanical lock (4.3) during the retractable opening movement of the step (7).
  • Said mechanical movement limitation provided by the articulated association of the four regions (3, 4, 5, 6) of the locking mechanism provides greater stability to the step (7) and better distribution of the opening and closing forces of the movement retractable step (7), since the stability of the step (7) does not depend on the work done by the piston cylinder (1), but on the mechanical locking of the mechanical lock (4.3) next to the locking tab (5.2).
  • the present invention presents a public transport vehicle comprising at least one body, in which the body comprises user entry and exit regions equipped with a support structure (2) with retractable step (7) , the vehicle comprising an articulated system for a retractable step comprising at least a locking mechanism provided with at least four regions (3, 4, 5, 6) interconnected in an articulated way and at least one piston cylinder (1) connected in at least one of the four regions (3, 4, 5, 6), wherein said four interconnected regions (3, 4, 5, 6) provide retractable movement to a step (7) relative to a support structure (2) of the vehicle.
  • the locking mechanism is formed by a first region (3), a second region (4), a third region (5) and a fourth region (6) interconnected to each other in a hinged manner, and connected to the step (7) and the support structure (2), so that the connection arrangement of the four regions (3, 4, 5, 6) provides retractable and articulated movement to the step (7), as well as mechanical locking of the retractable movement.
  • the third region (5) comprises a locking flap (5.2) provided with a structure that limits the movement of the hinged opening of a mechanical lock (4.3) of the second region (4), since the locking flap lock (5.2), when in contact with the mechanical lock (4.3) in a predetermined position of the retractable opening movement of the step, limits the articulated movement of the second region (4) and, consequently, limits the movement of all four regions (3, 4, 5, 6) of the locking mechanism.
  • the locking mechanism allows the step (7) to move in an articulated and retractable way and to be mechanically limited and locked when the locking tab (5.2) comes into contact with the mechanical lock (4.3) during the retractable opening movement of the step (7).
  • the vehicle having said articulated system for the retractable step of the present invention allows the step (7) to have its opening movement limited mechanically through the articulated association of the four regions (3, 4, 5, 6) of the locking mechanism, which provides greater stability to the step (7) and better distribution of the opening and closing forces of the retractable movement of the step (7), since the stability of the step (7) does not depend on the work performed by the piston cylinder (1), but by the mechanical locking of the mechanical lock (4.3) next to the locking tab (5.2).
  • an articulated system was developed for a retractable bus step with a mechanical locking mechanism.
  • the locking mechanism has 4 regions (3, 4, 5, 6) interconnected to each other in an articulated way that provide articulated retractable movement to the step (7) in relation to a fixed step (2) of the bus structure, as well as the mechanical locking of the retractable movement.
  • the locking mechanism is associated with the two sides of the step (7).
  • Figure 3 shows a perspective view illustrating in detail the locking mechanism and the interconnections between each of the four regions (3, 4, 5, 6).
  • Figure 1 shows a front view of the joint system for the retractable step developed, with the step (7) being in an open/expanded position for use by users, and figure 2 shows a front view of the joint system developed , and the step (7) is in a closed/retracted position.
  • Figures 1 and 2 illustrate all the interconnections between regions (3, 4, 5, 6) of the locking mechanism, which are described and detailed below.
  • the first region (3) of the four regions (3, 4, 5, 6) has straight geometry and has an end (3.1) connected to the step (7) and an end (3.2) connected to the fixed step (2) .
  • the second region (4) of the four regions (3, 4, 5, 6) has curved geometry and has a flap equipped with a mechanical lock (4.3). Still, it has an end (4.1) connected at a point between the end (3.1) and the end (3.2) of the first region (3), and an end (4.2) connected to a third region (5).
  • the third region (5) of the four regions (3, 4, 5, 6) has boomerang-type geometry, where one end (5.1 ) is connected to the end (4.2) of the second region (4), one end ( 5.2) is connected to the fixed step (2) and at one end (6.1) of the fourth region (6)
  • a pneumatic cylinder (1) is connected to the third region (5) at a connection point (5.3) located between the end (5.1) and the end (5.2) and an upper flap (2.1) of the structure support (2).
  • the third region (5) has a locking flap (5.2) of the movement of the mechanical lock (4.3) of the second region (4).
  • the locking tab (5.2) of the third region (5) limits the hinged opening movement of the mechanical lock (4.3) of the second region (4), since the locking tab (5.2), when in contact with the mechanical lock (4.3) in a predetermined position of the retractable opening movement of the step (7), limits the articulated movement of the second region (4) and, consequently, limits the movement of all four regions (3, 4, 5, 6) of the locking mechanism, as all four regions (3, 4, 5, 6) are interconnected.
  • the fourth region (6) of the four interconnected regions (3, 4, 5, 6) has curved geometry with an end (6.1) connected to the fixed step (2) and to the end (5.1) of the third region (5 ), and one end (6.2) connected to the step (7). Still, the fourth region (6) is equipped with two protrusions (6.3) that help in locking the opening movement of the step (7).
  • the retractable movement of the step (7) is limited in an open position of use by locking the mechanical lock (4.3) of the flap of the second region (4) next to the locking flap (5.2) of the third region (5) at a point located next to the support structure (2), that is, when the locking flap (5.2) comes into contact with the mechanical lock (4.3) during the retractable opening movement of the step (7).
  • Figure 5 illustrates the locking mechanism expanding the step (7) in an open position for use by the user and the figure illustrates the locking mechanism retracting the step (7) in a closed position.
  • the mechanical locking provided by the developed system provides greater stability to the step (7) and better distribution of the opening and closing forces of the retractable movement of the step (7), since the stability of the step (7) does not depend on the work performed by the piston cylinder (1), but by the mechanical locking of the mechanical lock (4.3) next to the locking tab (5.2).
  • the opening and closing forces of the step (7) are optimized, with the work performed through two pneumatic cylinders whose total force is not capable of hurting anyone or damaging the system if there is any obstruction of the opening movement /closing the step (7).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Lock And Its Accessories (AREA)

Abstract

La présente invention concerne un système articulé pour marche rétractable de véhicule et son procédé de montage. Plus particulièrement, la présente invention concerne un système permettant le mouvement rétractile et articulé d'au moins une marche de véhicule au moyen d'un mécanisme de blocage doté de zones reliées entre elles de manière articulée, de sorte que le blocage du mouvement rétractile de la marche est réalisé mécaniquement au moyen d'un élément de blocage situé dans l'une des zones du mécanisme, conférant ainsi une stabilité accrue à la marche et offrant une meilleure répartition des forces d'ouverture et de fermeture du mouvement rétractile de la marche. La présente invention trouve une application dans le domaine de l'ingénierie mécanique, notamment dans le secteur des mécanismes pour marches de véhicule.
PCT/BR2022/050270 2021-07-20 2022-07-20 Système articulé pour marche rétractable de véhicule, procédé de montage de système articulé et véhicule de transport collectif WO2023000053A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102021014222A BR102021014222A2 (pt) 2021-07-20 2021-07-20 Sistema para degrau de veículo de transporte coletivo, processo de montagem de sistema para degrau e veículo de transporte coletivo
BR1020210142227 2021-07-20

Publications (1)

Publication Number Publication Date
WO2023000053A1 true WO2023000053A1 (fr) 2023-01-26

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PCT/BR2022/050270 WO2023000053A1 (fr) 2021-07-20 2022-07-20 Système articulé pour marche rétractable de véhicule, procédé de montage de système articulé et véhicule de transport collectif

Country Status (3)

Country Link
AR (1) AR126518A1 (fr)
BR (1) BR102021014222A2 (fr)
WO (1) WO2023000053A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020113400A1 (en) * 2001-02-15 2002-08-22 Horst Leitner Retractable vehicle step
US20060125204A1 (en) * 2002-10-16 2006-06-15 Horst Leitner Retractable vehicle step
EP2418124A1 (fr) * 2010-08-12 2012-02-15 Thule Sweden AB Agencement de marchepied extensible et rétractable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020113400A1 (en) * 2001-02-15 2002-08-22 Horst Leitner Retractable vehicle step
US20060125204A1 (en) * 2002-10-16 2006-06-15 Horst Leitner Retractable vehicle step
EP2418124A1 (fr) * 2010-08-12 2012-02-15 Thule Sweden AB Agencement de marchepied extensible et rétractable

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BR102021014222A2 (pt) 2023-01-31
AR126518A1 (es) 2023-10-18

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