EP3793878A1 - Ascent aid on a rail vehicle - Google Patents
Ascent aid on a rail vehicleInfo
- Publication number
- EP3793878A1 EP3793878A1 EP19746026.4A EP19746026A EP3793878A1 EP 3793878 A1 EP3793878 A1 EP 3793878A1 EP 19746026 A EP19746026 A EP 19746026A EP 3793878 A1 EP3793878 A1 EP 3793878A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail vehicle
- ascent
- folding mechanism
- connecting rod
- folding
- 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
Links
- 101100366707 Arabidopsis thaliana SSL11 gene Proteins 0.000 claims abstract description 9
- 101100366562 Panax ginseng SS12 gene Proteins 0.000 claims abstract description 9
- 101100366711 Arabidopsis thaliana SSL13 gene Proteins 0.000 claims abstract description 6
- 101100366561 Panax ginseng SS11 gene Proteins 0.000 claims abstract description 6
- 101100202463 Schizophyllum commune SC14 gene Proteins 0.000 claims abstract description 4
- 210000003734 kidney Anatomy 0.000 claims 1
- 238000011161 development Methods 0.000 description 14
- 230000018109 developmental process Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D23/00—Construction of steps for railway vehicles
- B61D23/02—Folding steps for railway vehicles, e.g. hand or mechanically actuated
- B61D23/025—Folding steps for railway vehicles, e.g. hand or mechanically actuated electrically or fluid actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D23/00—Construction of steps for railway vehicles
- B61D23/02—Folding steps for railway vehicles, e.g. hand or mechanically actuated
Definitions
- the invention relates to an ascent to a rail vehicle with a step and with two side bars, the rail vehicle having a vehicle body and the tread in the longitudinal direction is arranged laterally on the vehicle body.
- Rail vehicles such as traction vehicles and control cars, have a driver's cab from which the rail vehicle is controlled.
- the driver's cab is arranged very high in the rail vehicle to ensure an optimal view of the track system.
- steps are arranged on the outside of the rail vehicle as an ascent or descent, which are provided for connecting the driver's cab to the track level.
- the steps are arranged along a vertical line and thus have the comparable function of a vertical ladder.
- the treads Due to operational accident prevention regulations, the treads have large tread areas.
- handrails are provided on the side of the ladder to enable the rail vehicle driver to safely get on and off the rail vehicle. Steps and handrails thus form components of the ladder or the ladder functionality.
- the handrails and / or treads protrude outwards in relation to the outside of the rail vehicle are limited in position and dimensions by a clearance profile of the rail vehicle that must also be maintained.
- the clearance profile is defined perpendicular to the longitudinal axis of the rail vehicle and is a measure of the cross-section of the rail vehicle. It tapers in the lower area towards the track body. This creates a safe area to be kept clear between the conductor components on the one hand and the track body on the other, taking into account the conditions of the track body (for example signaling devices such as balises, switch drives, etc.) and thus avoiding collisions in the operational (driving) operation of the rail vehicle.
- signaling devices such as balises, switch drives, etc.
- the bottom step is thus arranged at a predetermined height on the rail vehicle.
- This predetermined height of the lowest step must be overcome by a rail vehicle driver, who is located on the track body, for example, by a wide step in the vertical direction.
- a further step on the rail vehicle that can be used as an ascent. According to the above description, this should be arranged between the track body and the predetermined height, but is only available during the ascent or descent of the vehicle driver.
- the specified clearance profile is to be kept free, so that solutions with a movably designed lower step are known.
- a swiveling step is known which has a step held on two arms and a drive for swiveling the arms about a common swiveling axis. The treadmill is moved from a retracted position to an extended position and vice versa via the drive.
- FIG. 6 also shows another known solution for an improved ladder on the basis of a locomotive from SKODA, BR 102 series.
- the lowest ascent level is designed to be extendable or retractable in the vertical direction.
- the invention relates to an ascent to a rail vehicle, which has a vehicle body, with a step and with at least one folding mechanism.
- the folding mechanism is seen in the longitudinal direction of the step at one end of the step with this attached.
- the folding mechanism has two side bars that connect the step to the vehicle body via hinges.
- the folding mechanism has a connecting rod which additionally connects one of the side rods to the vehicle body via hinges.
- the connecting rod is divided by a folding hinge branches.
- the folding hinge is coupled with a force of the kind that by the force acting on the folding hinge the step over the hinges between one first position and a second position with respect to the rail vehicle is folded. In the first position of the step, an ascent to a driver's cab of the rail vehicle is supported. In the second position, the step is folded in such a way that a specified clearance profile of the rail vehicle is maintained.
- a first Klappmecha mechanism is seen in the longitudinal direction of the step at a first end of the step is attached to it.
- a second Klappme mechanism is seen in the longitudinal direction of the step at a second end of the step, which is opposite the first end of the step, attached to it.
- the two sides of the folding mechanism are connected at the respective lower ends via respective hinges to the step.
- the two side bars are connected with their respective upper ends via respective hinges to the vehicle body.
- the first includes
- Folding mechanism a cylinder, the force on the one hand with the folding hinge of the associated connecting rod and on the other hand connected to the vehicle body.
- This cylinder is extended in the first position when the step is folded out, so that the connecting rod has a kink.
- the cylinder is retracted in the second position when the step is folded in, so that the connecting rod is extended to lock the folding mechanism in this second position.
- the second folding mechanism includes a cylinder which, on the one hand, is forcing force to be connected to the folding hinge of the associated connecting rod and, on the other hand, to the vehicle body.
- This cylinder is retracted in the first position with the step folded out, so that the connecting rod is straight in order to lock the folding mechanism in this first position.
- the cylinder is extended in the second position with a folded step, so that the connecting rod has a kink.
- the step on the folding hinge causes the step to be folded in a plane of movement transversely to the longitudinal direction of the rail vehicle.
- the rotation into the second position is realized with a time offset after the pressure drop.
- the cylinders are part of a pneumatic or hydraulic or electrical cylinder system.
- a handrail is arranged on the rail vehicle, which supports the safe ascent of operating personnel to the driver's cab.
- the handrail includes an integrated actuation mechanism that controls the application of force.
- the step is mechanically blocked both in the first position and in the second position by the force acting on the folding hinge in connection with a stop which is arranged on the folding hinge.
- the present invention can be implemented in the rail vehicle without implementation in the rail vehicle software. This means that there are no associated validations.
- the present invention is inexpensive to implement in the rail vehicle.
- the present invention ensures a secure locking of the step in a given position on the rail vehicle to ensure the (driving) operation of the rail vehicle even with a pressure drop.
- FIG. 1 shows a plan view of a rail vehicle with a climb according to the invention in a partial representation
- FIGS. 1 to 3 shows an advantageous further development of the ascent according to the invention
- FIG. 6 shows the prior art described in the introduction.
- 1 shows a plan view of a rail vehicle SFZ with an ascent according to the invention in a partial view
- the rail vehicle SFZ is shown here in length, but only half. It includes a driver's cab FS1 and FS2 at each end.
- step TS For each driver's cab FS1, FS2 there are two ascents according to the invention with step TS, so that a rail vehicle operator as operating personnel has access to each of the driver's cabs FS1, FS2 from each side of the rail vehicle SFZ and can safely and easily access the driver's cab FS1, FS2. can rise or descend from it.
- the step TS has a width BR and a step depth TT, which are defined for safe use by the rail vehicle operator.
- the elongated tread TS with the width BR has two ends in the longitudinal direction.
- first folding mechanism KMER which is referred to as “folding mechanism, latching” and is explained in detail in the following FIG. 2.
- a second folding mechanism KMAR which is referred to as “folding mechanism, latched out” and is explained in detail in the following FIG. 3.
- FIG. 2 shows with reference to FIG. 1 the increase according to the invention in a first view AA with the first folding mechanism KMER (“folding mechanism folded into place”).
- the step TS is shown here in a lateral view with its step depth TT.
- the step TS is seen in the longitudinal direction at its first end with the respective lower end of two side bars SS11, SS12. This connection is made via two hinges SC11 and SC12.
- the respective upper ends of the two side bars SS11, SS12 are connected to the vehicle body FZK of the rail vehicle SFZ. This connection is made via two hinges SC13 and SC14.
- the second side rod SS12 is additionally connected to the vehicle body FZK via a connecting rod VS1. This connection is also made via two hinges SC15 and SC16.
- the connecting rod VS1 is divided in two by a folding hinge KS1.
- the hinged hinge KS1 preferably has a stop, which forms a mechanical limitation for the movement of the hinged hinge KS1 and thus forms part of a locking mechanism described below.
- the tread TS is rotatably mounted or foldable between a first position P0S1 and a second position P0S2 due to the force acting on the folding hinge KS1 and the hinges SC11 to SC16.
- the step TS In the first position P0S1 of the step TS an ascent (for example a rail vehicle driver) to the driver's stand FS1 of the rail vehicle SFZ is supported. In the second position P0S2, the step TS with respect to the rail vehicle SFZ is folded inwards and upwards, so that a predetermined clearance profile of the rail vehicle SFZ is maintained.
- the clearance profile is selected in such a way that collisions of the step TS during the journey of the SFZ rail vehicle with installations close to the track are avoided.
- the step TS is transversely to the longitudinal direction of the rail vehicle SFZ between the positions POS1 and POS2 by a rotary movement or folded.
- the force acting on the folding hinge KS1 takes place via a first cylinder ZYL1 of a cylinder drive, which is connected both to the folding hinge KS1 and to the vehicle body FZK.
- a further hinge is preferably provided on the vehicle body,
- step TS In the position P0S1 shown here (step TS is “unfolded”), the first cylinder ZYL1 of the cylinder drive is extended (for example maximally) and the connecting rod VS1 has a kink.
- FIG. 3 shows with reference to FIG. 1 the increase according to the invention in a second view BB with the second folding mechanism KMAR (“folding mechanism unfolded latching”).
- the step TS is shown here in a lateral view with its step depth TT.
- the step TS is seen in the longitudinal direction at its two-th end with the respective lower end of two side bars SS21, SS22. This connection is made via two hinges SC21 and SC22.
- the respective upper ends of the two side bars SS21, SS22 are connected to the vehicle body FZK of the rail vehicle SFZ. This connection is made via two hinges SC23 and SC24.
- the second side rod SS22 is additionally connected to the vehicle body FZK via a connecting rod VS2. This connection is also made via two hinges SC25 and SC26.
- the connecting rod VS2 is divided in two by a KS2 folding hinge.
- the hinged hinge KS2 preferably has a stop, which forms a mechanical limitation for the movement of the hinged hinge KS2 and thus forms part of a locking mechanism described below.
- the step TS is rotatably mounted or foldable between the first position P0S1 and the second position P0S2.
- step TS In the first position P0S1 of step TS the ascent to the driver's cab FS1 of the rail SFZ vehicle supports, the level is analogous and quasi "unfolded" with reference to the rail vehicle.
- the step TS with respect to the rail vehicle SFZ is folded inwards and upwards, so that a predetermined clearance profile of the rail vehicle SFZ is maintained.
- the clearance profile is selected in such a way that collisions of the step TS during the journey of the SFZ rail vehicle with installations close to the track are avoided.
- the step TS is transversely to the longitudinal direction of the rail vehicle SFZ between the positions POS1 and POS2 by a rotary movement or folded.
- the force acting on the folding hinge KS2 is via a second cylinder ZYL2 of a cylinder drive, which is probably connected to the folding hinge KS2 as well as to the vehicle box FZK.
- a further hinge is preferably provided on the vehicle body,
- step TS is “unfolded”
- the second cylinder ZYL2 of the cylinder drive (for example maximum) is retracted and the connecting rod VS2 is elongated, ie has no kink.
- FIG. 4 shows, with reference to FIGS. 1 to 3, an advantageous development of the ascent according to the invention.
- a handrail HS is arranged on the SFZ rail vehicle, which supports the safe ascent of the operating personnel.
- the handrail HS contains an integrated actuation mechanism BL, SE with which the two cylinders ZYL1, ZYL2 of the cylinder drive are controlled.
- Pressure lines for the cylinders ZYL1, ZYL2 are controlled via a switch EN, which is an integrated part of the handrail HS.
- the switch EN is preferably formed as part of an actuating strip which is integrated in the handrail HS.
- the operating bar is designed in such a way that it can be operated both in an upper area (i.e. when the rail vehicle driver leaves the driver's cab) and in the lower area (i.e. when the rail vehicle driver is standing in the track bed).
- the actuating bar preferably activates the switching element SE, which is designed, for example, as a pneumatic valve.
- the step TS is extended via the pressure lines to the first position POS1, but only as long as the rail vehicle operator has a hand on the handrail HS with the actuating bar BL.
- the step TS retracts with a time delay until the POS2 position has been reached.
- the time delay is necessary because in the event of an accidental brief release of the operating bar BL, the step TS must not immediately retract in order to prevent accidents.
- the driver When getting in or out, the driver actuates the operating bar BL. This activates the switching element SE and the pressure chamber of the cylinder ZYL1 and the pressure chamber of the cylinder ZYL2 are pressurized (e.g. by air or oil).
- the second cylinder ZYL2 retracts, the first cylinder ZYL1 extends and so the two cylinders ZYL1, ZYL2 push the step TS into the extended position P0S1.
- the second cylinder ZYL2 moves against the stop of the KS2 folding hinge and blocks the unfolding movement.
- the associated hinged connecting rod VS2 is stretched out.
- the TS step is audible with hissing noises. The driver can climb the TS step safely.
- the step TS acts stable because the second connecting rod VS2 is extended.
- the first cylinder ZYL1 slowly retracts and the second cylinder ZYL2 slowly extends.
- the step TS is slowly retracted and moved to the second position P0S2.
- the first cylinder ZYL1 moves against the stop of the folding hinge KS1 and fixes the step TS in the retracted state by the associated connecting rod VS1 being stretched out.
- the arrangement according to the invention has a fail-safe functionality. In the event of line breaks and the associated loss of pressure, the respective springs in the cylinders ZYL1, ZYL2 push the step TS into the position P0S2.
- FIG 5 shows an alternative embodiment of the ascent according to the invention in a schematic diagram.
- the step moves here again between a first position POS1 (unfolded position) and a second position P0S2 (folded position).
- FIGS. 1 to 4 describe a collapse or unfolding of the step TS achieved by a rotary movement of parallel side bars.
- the step TS is in this side view again via side bars SSI, SS2 and hinges or bearings FL1,
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
- Mechanical Control Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018213727.7A DE102018213727A1 (en) | 2018-08-15 | 2018-08-15 | Ascent on a rail vehicle |
PCT/EP2019/069031 WO2020035247A1 (en) | 2018-08-15 | 2019-07-15 | Ascent aid on a rail vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3793878A1 true EP3793878A1 (en) | 2021-03-24 |
EP3793878B1 EP3793878B1 (en) | 2024-05-08 |
Family
ID=67480179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19746026.4A Active EP3793878B1 (en) | 2018-08-15 | 2019-07-15 | Rail vehicle with an ascent aid |
Country Status (7)
Country | Link |
---|---|
US (1) | US11753050B2 (en) |
EP (1) | EP3793878B1 (en) |
CN (1) | CN112566831B (en) |
DE (1) | DE102018213727A1 (en) |
ES (1) | ES2980172T3 (en) |
PL (1) | PL3793878T3 (en) |
WO (1) | WO2020035247A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022200380A1 (en) | 2022-01-14 | 2023-07-20 | Siemens Mobility GmbH | Tread assembly and method of operating the tread assembly |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3371623A (en) * | 1965-10-21 | 1968-03-05 | Raymond L Therrien | Convertible rail-highway vehicle with retractable step |
DE2129223C3 (en) * | 1971-06-12 | 1979-04-12 | Linke-Hofmann-Busch Waggon-Fahrzeug-Maschinen Gmbh, 3320 Salzgitter | Multi-level entry for rail vehicles in the vehicle profile |
DE3301746C2 (en) * | 1983-01-20 | 1987-01-22 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Folding step for rail vehicles |
US4623160A (en) * | 1985-09-06 | 1986-11-18 | Trudell Jerry W | Extensible step assembly for vehicles |
US4720116A (en) * | 1986-11-24 | 1988-01-19 | Williams Michael G | Storable stairway and platform apparatus for recreational vehicles |
DE4016620A1 (en) * | 1990-05-23 | 1991-11-28 | Man Ghh Schienenverkehr | MULTI-STAGE FOLDING STEP FOR TRACKED VEHICLES |
JP3241952B2 (en) * | 1994-12-06 | 2001-12-25 | 日産ディーゼル工業株式会社 | Vehicle step device |
ITTO20030080A1 (en) * | 2003-02-06 | 2004-08-07 | Fiat Auto Spa | RETRACTABLE FOOTBOARD WITH ELECTROMECHANICAL CONTROL FOR A VEHICLE. |
WO2006078195A1 (en) * | 2005-01-21 | 2006-07-27 | Volvo Lastvagnar Ab | Step for a vehicle |
US9944231B2 (en) * | 2006-10-27 | 2018-04-17 | Lund Motion Products, Inc. | Retractable vehicle step |
JP5383450B2 (en) * | 2009-11-24 | 2014-01-08 | 川崎重工業株式会社 | Railway vehicle stepping device |
DE202010000524U1 (en) * | 2009-12-07 | 2011-04-21 | Gebr. Bode Gmbh & Co. Kg | Sliding step with additional folding step |
CN202782932U (en) * | 2012-05-18 | 2013-03-13 | 镇江捷诚方舱部件有限公司 | Folding type step ladder for boarding vehicle |
DE102013017573A1 (en) * | 2013-10-24 | 2015-04-30 | Bombardier Transportation Gmbh | Rail vehicle, in particular traction vehicle |
DE102016114269B4 (en) | 2016-06-06 | 2018-05-30 | Schaltbau Refurbishment Gmbh | Pivoting step especially for rail vehicles and vehicles with such a swivel step |
CN206124902U (en) * | 2016-10-31 | 2017-04-26 | 陕西汽车实业有限公司 | Heavy van driver's cabin device of marking time of getting on bus |
CN206317748U (en) * | 2016-12-30 | 2017-07-11 | 明光浩淼安防科技股份公司 | Automatic turning step device |
-
2018
- 2018-08-15 DE DE102018213727.7A patent/DE102018213727A1/en not_active Withdrawn
-
2019
- 2019-07-15 US US17/267,069 patent/US11753050B2/en active Active
- 2019-07-15 ES ES19746026T patent/ES2980172T3/en active Active
- 2019-07-15 CN CN201980053610.9A patent/CN112566831B/en active Active
- 2019-07-15 PL PL19746026.4T patent/PL3793878T3/en unknown
- 2019-07-15 EP EP19746026.4A patent/EP3793878B1/en active Active
- 2019-07-15 WO PCT/EP2019/069031 patent/WO2020035247A1/en active Search and Examination
Also Published As
Publication number | Publication date |
---|---|
ES2980172T3 (en) | 2024-09-30 |
WO2020035247A1 (en) | 2020-02-20 |
DE102018213727A1 (en) | 2020-02-20 |
CN112566831A (en) | 2021-03-26 |
EP3793878B1 (en) | 2024-05-08 |
CN112566831B (en) | 2023-06-23 |
US11753050B2 (en) | 2023-09-12 |
US20210309266A1 (en) | 2021-10-07 |
PL3793878T3 (en) | 2024-09-16 |
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