Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
  • B61B13/00—Other railway systems
  • B61B13/12—Systems with propulsion devices between or alongside the rails, e.g. pneumatic systems
  • B61B13/125—Systems with propulsion devices between or alongside the rails, e.g. pneumatic systems the propulsion device being a rotating shaft or the like

Definitions

• the invention relates to a transport system using passive vehicles, driven at variable speed by orientable rollers and rotating tubes.
• continuous operation systems which mainly include conveyor belts, at constant or variable speed, also called accelerated moving walks,
• Discontinuous systems among which are reversible and irreversible vehicle systems.
• Semi-continuous transport systems do not have favorable capacity characteristics over short distances compared to the above-mentioned continuous systems, but have the advantage over discontinuous shuttle-type systems of maintaining them independently of the distance traveled.
• Cable systems whose vehicle speed is limited to 10 m / s, are therefore slower than active systems.
• cable systems if they have certain advantages (simplified collision avoidance, simple kinematic chain, etc.) have the disadvantage, in addition to their low speed of movement, of requiring the use of several strands and disengageable clamps , when the route includes non-equi distant intermediate stations, and to resort, in certain cases, to a complementary variable speed drive means, to obtain a progressive and sufficient speed reduction during the passage in the stations.
• This system which retains the cable drive, is therefore not suitable for winding routes, and requires heavy and expensive infrastructure.
• the object of the present invention is to remedy these drawbacks.
• the invention as it is characterized solves the problem of creating a transport system by passive vehicles, at variable speed, on its own site or not, suitable for the creation of mesh networks with winding paths, with the possibility of intersection. , or even integration with other means of transport, with no constraint on the accumulation or spacing of vehicles, deceleration, stopping and acceleration in a fully mechanical station, opening of automatic doors, security system acting on braking, emergency stop and possibility of adaptation to variations in passenger flow.
• the system according to the invention is mainly characterized in that it essentially comprises rotating drive tubes arranged in a polygonal line following the layout of the track, in that the vehicles are fitted with one or more of several pivoting drive rollers, in contact with the rotating tubes, the orientation of which, relative to the rotating tubes, is obtained by means of a parallelogram articulated comprising, on the front, one or more actuating rollers for receiving cams, in that the vehicle chassis comprises, on the rear, an accumulation device making it possible to reduce the speed of a vehicle overtaking up to a speed at most equal to that of the overtaken vehicle, in that each vehicle is equipped with an emergency braking device comprising a jaw intended to grip, in an emergency, the running rail, in that the doors access, controlled from the platform by cams, come, in the open position, to hide the space left free between two vehicles, in that the movement in the opposite direction is obtained, ultimately, by a turntable comprising two track elements arranged symmetrically with respect to the axis of rotation of the table or by a cam secured to
• the rotation of the tubes is ensured, individually or collectively, through motors incorporated in the track.
• the collective drive of certain sections of tube is ensured by universal joints or by flexible shafts.
• the rotational drive is carried out by means of a toothed belt, mounted in a toothed groove whose depth corresponds to the thickness of the belt.
• the power and speed of the rotating tube drive motors are determined according to the terrain and certain particular features of the route.
• the motors located at crossroads are controlled by low beam or other similar devices.
• the accumulation device making it possible to reduce the speed of a overtaking vehicle, consists of a tail, comprising a ramp with progressive slope, on which comes to rest the maneuvering roller of the paral lelogram articulated orientation of the rollers d pivoting drive of the overtaking vehicle.
• the jaws intended to enclose, in an emergency, one of the running rails, are actuated by springs, the release of which is controlled by a pressurized gas actuator operable manually, or automatically by the front shield.
• the pivoting drive rollers are coated, at their periphery, with a bandage of material promoting their grip and reducing rolling noise.
• this material is polyurethane.
• the vehicle is guided laterally by rollers located on either side of the core of one of the rails.
• FIG. 1 represents a perspective view of a vehicle in place on the track
• FIG. 2 shows a side view of a vehicle in place on the track
• Figure 3 shows a top view of a vehicle in place on the track
• Figure 4 shows a top view of the drive mechanism
• FIG. 5 shows a front view of a vehicle in place on the track
• FIG. 6 shows a perspective view of the drive mechanism.
• the figures represent a transport system by passive vehicles, driven at variable speed by rotating tubes and orientable rollers, essentially comprising a vehicle 1, driven on rails 2 and 3 by means of tubes 4 rotating in bearings 13 and rollers 5 and 6 orientable by an articulated parallelogram 7, under the action of a lever 8 provided at its free end with an operating roller 9, controlled by cams located at the edge of the track or by the tail with ramp 10 arranged at the rear of the previous vehicle.
• the vehicles 1 are guided laterally by rollers 11 and 12 located on either side of the core of one of the rails 3, fixed on the crosspieces 14, and held firmly plumb relative to the rails 2 and 3 via the rollers 11 and 12 and brackets 15 and 16 located on either side of the core of the other rail 2.
• the vehicles 1 rest on the track consisting of the rails 2 and 3, relative to one of which they are guided by the rollers 11 and 12 arranged on either side of the core of the one of the rails 3, and on which they are held vertically by means of the rollers 11 and 12 and the brackets 15 and 16 connecting under the running sole of the rails 2 and 3; which eliminates all possibilities of overturning vehicles under any action whatsoever.
• the vehicles are driven via the tubes 4, rotating in bearings
• the articulated parallelogram 7, ensuring the pivoting of the drive rollers, makes it possible to obtain, by means of the lever 8 and the drive roller 9, different positions of the drive rollers corresponding, for example, to the disengagement of the training; the rollers 5 and 6 then being oriented across the tubes 4. Different drive speeds can be obtained by this means, as well as immobilization on the track, the rollers 5 and 6 then being, in the latter case, arranged perpendicularly to the tube 4, or the reversal of the direction of movement of the vehicle, when the latter position is crossed and the rollers 5 and 6 are oriented symmetrically relative to their initial position.
• the operating roller 9, of the lever 8 for controlling the articulated parallelogram 7, is acted upon when the vehicle catches up with another, since the ramp tail 10 of the latter penetrates under the chassis and gradually inclines the lever 8 until synchronization of the speeds of the two vehicles.
• the doors When the speed is sufficiently low, the doors are opened by means of a cam located along the platform. Vehicles parade at slow speed in the station, which is large enough to hold three or four vehicles simultaneously. At the end of the platform, the doors are closed by means of another cam. The closure is controlled by means of a limit switch. The vehicle can then resume speed which is a function of the profile of the cam located at the exit of the station.
• Each station is equipped with a remote surveillance installation which allows remote reset of the door open safety and the complete stopping of a cabin to facilitate boarding.
• the track is streamlined by means of a platform, so as to leave only the top of the track visible.
• the vehicle is guided on its track under the deck.
• the rotating tubes 4 are slightly visible, so as to guarantee sufficient contact with the drive rollers. This is achieved by arranging the lips on either side of the tube, or by machining therein a series of notches, in which the teeth of a comb engage, so as to obtain a level of safety equivalent to that existing on escalators.
• the rotating tube is reinforced in this part to allow the passage of motor vehicles without fear of deterioration. In order to take safety into account in the passage area, the speed of the vehicles is reduced when approaching it.
• Authorization to pass vehicles is associated with external information and free passage detection.
• One of the pivoting drive rollers 5 or 6 of each vehicle drives a dynamo ensuring the charging of an on-board storage battery, supplying energy to the on-board electrical circuit; which allows, for example, to provide autonomous signaling and sound.
• the track can be placed on an overhead frame, to ensure the crossing of works or to free up the occupied surface on the ground.
• the vehicle can also be suspended for the same purpose.
• the track may have radii of curvature reduced to 10 meters.
• the flow of vehicles can be intermittent, constant or flexible, depending on the number of users. This flow is managed by taking into account the number of passengers on board, when validating access tickets or checking magnetic transport cards.
• the remote control, the remote control and the transmissions are ensured in liaisoan by optical fibers and self-controlled processors.
• the system according to the invention is intended mainly for the transport of people on their own site or not for junctions of the periphery / city center and periphery / periphery type, the mesh of central spaces and activity centers in cities, the extension urban lines, when it can take the form of a bipolar junction between a station of a regional express network and a pole of concentrated activity, in particular in new urbanization; drawdowns of residential areas towards public transport terminals; internal connections to exhibition centers, industrial sites, large shopping complexes and the transport of equipment and products.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Escalators And Moving Walkways (AREA)
• Train Traffic Observation, Control, And Security (AREA)
• Platform Screen Doors And Railroad Systems (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

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ID=9336018

Family Applications (1)

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Families Citing this family (7)

Family Cites Families (22)

• 1986
  • 1986-06-05 FR FR8608092A patent/FR2599694B1/fr not_active Expired - Lifetime
• 1987
  • 1987-06-04 JP JP62503500A patent/JPS63503452A/ja active Pending
  • 1987-06-04 AU AU74858/87A patent/AU7485887A/en not_active Abandoned
  • 1987-06-04 WO PCT/FR1987/000200 patent/WO1987007572A1/fr active IP Right Grant
  • 1987-06-04 US US07/163,970 patent/US4909153A/en not_active Expired - Fee Related
  • 1987-06-04 EP EP87903704A patent/EP0269687B1/de not_active Expired - Lifetime

Non-Patent Citations (1)

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