Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
  • B60F1/00—Vehicles for use both on rail and on road; Conversions therefor
  • B60F1/04—Vehicles for use both on rail and on road; Conversions therefor with rail and road wheels on different axles
  • B60F1/043—Vehicles comprising own propelling units
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
  • B60F2301/00—Retractable wheels
  • B60F2301/04—Retractable wheels pivotally

Definitions

• the present invention relates to a vehicle of the kind defined in the preamble of Claim 1.
• vehicles of this nature function well for the purpose for which they are intended and, among other things, when in their railroad-driving mode can be turned around on the tracks without affecting traffic on an adjacent track.
• the standard vehicle wheels as the driving wheels in the railroad track mode of the vehicle, in which case the distance between the front wheels and the rear wheels - possibly the inner rear wheels when the rear wheels are comprised of "twin wheels" - will correspond to the track width or gauge, at least approximate ⁇ ly.
• the use of the standard driving wheels of a vehicle for railroad propulsion also enables the use of a separate power unit on the rear rail-wheel unit to be omitted, which can further simplify and lower the cost of the construction as a whole in relation to what has been usual hitherto when practicing the principles described in the aforesaid publica ⁇ tions and where the possibility is given of using a single axle provided with rail-running wheels or a bogey as the rear rail-wheel unit, both alternatives with or without a separate power unit.
• the phenomenon occurs irrespective of whether the vehicle is reversed onto the track with the aid of front vehicle-drive wheels or is pulled onto the track with the aid of a power unit, such as an hydraulic motor, mounted on the rear rail- wheel unit.
• a power unit such as an hydraulic motor
• one object of the invention is to eliminate the aforesaid serious drawbacks so as to also enable the track- mounting and turning principles described in the aforesaid publications to be applied in practice with smaller and lighter vehicles, without the use of a bogey as a rear rail- wheel unit.
• Another object is to provide a vehicle of the aforesaid kind which can be converted from a road-driving mode to a rail ⁇ road-driving mode either with the aid of standard road- driving wheels or with the aid of a drive arrangement, e.g. an hydraulic motor, mounted adjacent the rear rail-wheel unit, wherein said drive arrangement can be used in conjunc ⁇ tion with drawing the vehicle up onto the track, in accor ⁇ dance with the inventive purpose, particularly in those cases when the vehicle concerned is equipped with a rear-wheel drive.
• a drive arrangement e.g. an hydraulic motor
• the articulated rail-wheel unit to which the support element is fitted is designed advantageously to be fixed in its position parallel with the track and the longitudinal axis of the vehicle. This ensures effective driving of the vehicle with the vehicle in its railroad-driving mode, wherewith the standard road-running drive wheels of the vehicle may also be used to drive the vehicle through engagement with the rails of the track.
• a separate drive unit e.g. an hydraulic motor, may be mounted on the rail-wheel unit.
• the rail-wheel unit provided with said support element will preferably be located at that end of the vehicle which is distal from the vehicle drive wheels.
• the rail- wheel unit is located rearwardly of the vehicle and the vehicle is reversed up onto the track.
• the scope of the invention enables the use of a vehicle equipped with a rear wheel drive, in which case the rail-wheel unit is instead located in front of the vehicle or in the region of its forward end.
• the support element is conveniently provided with a rail-running wheel which is located for coaction with the rail that is distal from the vehicle-mounting side of the track.
• the rail- wheel of the support element will instead coact with the rail that is proximal to the vehicle-mounting side of the track.
• the vehicle can be pulled up onto the track with the aid of the drive motor of the rail-wheel unit - which is particularly advantageous in those cases when the vehicle is a rear-wheel drive vehicle - wherein the interaction of forces between the component units is best taken into account when the arrangement is the described arrangement.
• Fig. 1 is a side view of a vehicle which can be driven on a road and on railroad tracks and which is equipped in accor ⁇ dance with the present invention.
• Fig. 2 is a view which illustrates the active elements of the vehicle from above,, and also shows the railroad track in a first stage of mounting the vehicle on the track.
• Fig. 3 is a view corresponding to the view of Fig. 2, illustrating an operational state in which the rear rail- wheel unit has been mounted on the track and driving or pulling of the vehicle onto the track continues.
• Fig. 4 is a perspective view of the rear part of a vehicle according to Fig. 1, and illustrates the rail-wheel unit, associated support element and additional rail-wheel.
• Fig. 5 is a view corresponding to the views of Figs. 2 and 3 and illustrates the vehicle converted to its railroad- driving mode.
• Fig. 6 is a side view illustrating the operational state of the vehicle shown in Fig. 5, i.e. the railroad-driving mode of the vehicle, wherein the standard road wheels of the vehicle can be used to drive the vehicle along the rails.
• Fig. 7 is a side view corresponding to the view of Fig. 6 and shows the vehicle raised from the track while being propelled by a power unit mounted on the rear rail- wheel unit, e.g. an hydraulic motor.
• Figs. 1-4 illustrate a vehicle 1 which can be driven on a road surface and on a railroad track.
• the vehicle includes a wheel chassis la having a front steerable wheel axle 2a and a rear-wheel axle 3a, each of which carries a respective road-running wheel 2 and 3.
• the wheel chassis la also carries a front rail-running wheel unit 5 and a rear rail-running unit 7, of which the rear unit 7 can be swung about a vertical axle 8.
• the front unit 5 includes an axle 4a which carries rail-runn ⁇ ing wheels 4.
• the unit can be placed against a railroad track for the purpose of lifting the vehicle, with the aid of hydraulics 12.
• Corresponding hydraulics are provided for coaction with the rear rail-wheel 7.
• the shaft or axle of the rear rail-wheel unit is referenced 6a and the two rail-wheels are referenced 6.
• the rear rail- wheel unit 7, which is pivotal around the axle 8, is provided with an outwardly swingable support element 15 having a shaft 16a and a rail-wheel 16.
• the vehicle mounts the track with the aid of the vehicle front wheels 2, which are the vehicle drive wheels.
• the vehicle is thus backed onto the track after having brought the rear rail- wheel unit 7 into engagement with the track so that the rear part of the vehicle carrying the rear wheels 3 is raised, said rail-wheel unit 7 being moved by means of its hydraulic motor, the piston rod 14 of which is shown in Fig. 4.
• the vehicle can then be lowered slightly, so as to bring the wheels 2, 3 of the vehicle into abutment with the track.
• the wheel span is assumed to correspond to the gauge of the track.
• the vehicle is then moved along the track while powered by its standard road-driving power system.
• the rear rail-wheel unit 7 is provided with a power unit 18 in the form of a hydraulic motor having an output shaft which functions to transmit power to the rail-wheel axle 6a carrying the rail-wheel 6.
• the power unit 18 can also be used to draw the vehicle onto the track, which is particularly advantageous when the vehicle rear-wheels 3 are the driving wheels of the vehicle.
• the support element 15 provided with the addi- tional rail-wheel 16 will preferably be arranged so that the rail-wheel 16 will coact with the rail 10a that lies proximal to the track-mounting side of the vehicle.
• the arrangement may optionally be one in which the rail-wheel unit 7 includes means for switching the support element 15 between the aforesaid two different positions. In this case, the rail-wheel 16 must be reversed in relation to the position shown in Fig. 4.
• the rail unit 7 When the rail unit 7 is provided with a power unit 18 of the aforesaid kind, it may also be used to drive the vehicle along the track in the mode shown in Fig. 7, i.e. with the two road-running wheels out of engagement with the track.
• Dismounting of the vehicle and turning of the vehicle on the track are effected in the reverse order to that described with reference to Figs. 2, 3 and 5.
• the rail-wheel unit 7 includes a power unit 18, the unit may also be used in conjunction with dismounting the vehicle from and turning the vehicle on the track.
• the support element 5 When the vehicle is driven along the track with the rail- wheel units 5 and 7 fixed and the vehicle parallel with said units and with the longitudinal axis of the track, the support element 5 is conveniently swung away from the position shown in Fig. 4 so that the additional rail-wheel 16 will no longer be in engagement with the rail 10b.

Landscapes

• Engineering & Computer Science (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Platform Screen Doors And Railroad Systems (AREA)
• Train Traffic Observation, Control, And Security (AREA)
• Automatic Cycles, And Cycles In General (AREA)
• Handcart (AREA)
• Motorcycle And Bicycle Frame (AREA)
• Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
• Metal Rolling (AREA)
• Devices For Checking Fares Or Tickets At Control Points (AREA)
• Valve-Gear Or Valve Arrangements (AREA)
• Escalators And Moving Walkways (AREA)
• Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20393837

Family Applications (1)

Country Status (11)

Cited By (10)

Families Citing this family (5)

Citations (1)

• 1994
  • 1994-04-29 SE SE9401479A patent/SE502692C2/sv not_active IP Right Cessation
• 1995
  • 1995-04-27 DE DE69510343T patent/DE69510343T2/de not_active Expired - Lifetime
  • 1995-04-27 DK DK95918241T patent/DK0757631T3/da active
  • 1995-04-27 EP EP95918241A patent/EP0757631B1/en not_active Expired - Lifetime
  • 1995-04-27 AT AT95918241T patent/ATE181289T1/de not_active IP Right Cessation
  • 1995-04-27 AU AU24233/95A patent/AU2423395A/en not_active Abandoned
  • 1995-04-27 WO PCT/SE1995/000469 patent/WO1995029822A1/en active IP Right Grant
  • 1995-04-27 JP JP52815095A patent/JP3612548B2/ja not_active Expired - Fee Related
  • 1995-04-27 ES ES95918241T patent/ES2135729T3/es not_active Expired - Lifetime
• 1996
  • 1996-10-23 NO NO964496A patent/NO306767B1/no unknown
  • 1996-10-25 FI FI964313A patent/FI112628B/fi active

Patent Citations (1)

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