EP0618125B1 - Schwenkbarer Einstieg für eine Tür eines Eisenbahnfahrzeuges - Google Patents

Schwenkbarer Einstieg für eine Tür eines Eisenbahnfahrzeuges Download PDF

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Publication number
EP0618125B1
EP0618125B1 EP94400475A EP94400475A EP0618125B1 EP 0618125 B1 EP0618125 B1 EP 0618125B1 EP 94400475 A EP94400475 A EP 94400475A EP 94400475 A EP94400475 A EP 94400475A EP 0618125 B1 EP0618125 B1 EP 0618125B1
Authority
EP
European Patent Office
Prior art keywords
footstep
pivoting
motive means
shaft
nut
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.)
Expired - Lifetime
Application number
EP94400475A
Other languages
English (en)
French (fr)
Other versions
EP0618125A1 (de
Inventor
Francis Ancelet
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.)
ANF Industrie
Original Assignee
ANF Industrie
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Filing date
Publication date
Application filed by ANF Industrie filed Critical ANF Industrie
Publication of EP0618125A1 publication Critical patent/EP0618125A1/de
Application granted granted Critical
Publication of EP0618125B1 publication Critical patent/EP0618125B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a mobile step for a rail vehicle door, comprising a pivoting step with at least two positions, namely a raised position retracted with respect to the template and a horizontal position of use.
  • the known steps are of a complex construction: the step pivots on an axis which is itself mobile, and above all a linkage system is used to maneuver the step.
  • These assemblies are fragile and take up a lot of space so that one is obliged to house part of them between the two side sills. As a result, access for maintenance and possible repairs is made difficult.
  • these systems because of their complexity, are sensitive to the external environment (snow, ice, dust, etc.)
  • the invention aims to provide another mobile step system, which is robust and compact, so that it can be housed entirely outside the side rails of the rocker panel.
  • the step is integral with a shaft pivoting on bearings around a fixed axis, disposed parallel to and close to the side sill, said shaft extending longitudinally by a portion of screws meshing with a nut locked in rotation and sliding longitudinally, the nut receiving its longitudinal movement in the direction leading to the lowering (by rotation about the axis) of the step of a first motor device arranged longitudinally, and in the opposite direction of a second motor device also arranged longitudinally, the two motor devices being housed in a low thickness disposed on the outer face of the spar below and in the vicinity of the step.
  • the first motor device consists of at least one pneumatic cylinder, and preferably of two cylinders for safety reasons.
  • the second motor device can also consist of at least one pneumatic cylinder, but it preferably consists of a mechanical return device, and in particular of a compression spring device, preferably comprising at least two springs in parallel .
  • the first and second motor devices can be constituted by the same double-acting pneumatic cylinder.
  • the screw part is formed by helical grooves with a small tilt angle, which makes it possible to obtain the necessary torque while having a diameter and therefore a very small overall size.
  • the grooves are preferably of square section and the angle of inclination is close to 10 °.
  • the operating mechanism according to the invention can be easily mounted on the rails of a railway box, is easy to access from the outside, offers a small footprint, is compact and can be enclosed in a sealed casing making it protected from dirt and projections to which its position exposes it.
  • the steps 5 according to the invention include movable step 6 proper, in the vertical position retracted in Figure 1, and its casing 7 housing the operating mechanism.
  • the casing 7 extends under the step 6 and projects laterally. It is fully pressed against the beam 2.
  • the mobile step 6 includes a step nose 8, made of a suitable profiled material, for example aluminum, secured by frangible assembly means 9, to a pivoting part 10 advantageously molded.
  • This comprises, at its ends, a sleeve 11 surrounding a shaft 12 (or half-shaft) on which it is locked in rotation by a key 13.
  • An intermediate sleeve 11 '(cf. FIG. 1) is also provided.
  • One end of the shaft 12 is received in rotation about a fixed parallel axis of the spar and close to it, in a bearing 14 housed under the step and produced in a molded case 27 fixed to the spar 2, while the outer end of the shaft 12 is provided on a cardboard portion 15 of its length with helical grooves, this portion forming a screw being received in rotation in a nut 16 slidably mounted on a smooth guide shaft 17 parallel to the drive shaft 12, and located above it.
  • the nut 16 has a thread complementary to that of the screw 15.
  • the guide shaft 17 is fixed at its ends to the housing 27.
  • the shaft 12 is extended beyond its screw portion 15 by a nozzle 18 carrying cams 19 coming, during the rotation of the shaft, engaging and triggering pneumatic contacts 20, opening and closing compressed air passages intended to the actuator cylinders.
  • the nut 16 is biased in movement, at its lower part, on one side by the heads 21 of the rods of two pneumatic cylinders 22 arranged laterally and superimposed and on the other side, by two superimposed parallel compression springs 23,24 .
  • Each spring 23, 24 is possibly composed of several springs, in series, for example a spring 23 guided by an internal rod 25 linked to the nut 16, and a spring 24 guided in a bore 26 of the mechanism housing 27.
  • the two mechanism housings 27, at the end of the steps, are for example made in foundry, and connected by a connecting beam 28 made of mechanically welded steel.
  • the connecting beam 28 comprises in its middle a bearing 29 receiving a pivot shaft intended for the intermediate sleeve 11 '.
  • the assembly is covered with a casing 7, possibly in several parts.
  • the step 6 is normally in its retracted retracted position, the mechanism being in the position shown in FIG. 2: the nut 16 is pushed completely outwards by the springs 23, 24, the force of which is sufficient to oppose the descent of the step by gravity.
  • FIG. 4 shows in dotted lines intermediate positions of the step, and in solid lines, the final horizontal position of the step.
  • the single-acting cylinders 22 can be replaced by double-acting cylinders whose rod head is hooked to the nut 16, and the springs 23, 24 can be eliminated.
  • the movement of the step is then determined in one direction and in the other by the push and the traction of the jacks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Body Structure For Vehicles (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Transmission Devices (AREA)
  • Seats For Vehicles (AREA)

Claims (7)

  1. Schwenkbarer Einstieg für eine Tür (4) eines Eisenbahnwagens, der eine in mindestens zwei Positionen schwenkbare Stufe aufweist, nämlich eine im Verhältnis zur Spurlehre hochgezogene, rückgestellt vertiefte und eine horizontale Benutzungsposition,
    dadurch gekennzeichnet, daß die Stufe (6) aus einem Stück mit einer auf einer festen Achse drehbar gelagerten Welle (12) besteht, die parallel zur Rahmenwange (2) des Karosseriebodens und nahe desselben angeordnet ist, wobei die Welle (12) sich längs mittels eines Schneckenteils (15), das mit einer drehfesten und längsverschiebbaren Mutter (16) ineinandergreift, verlängert ist, wobei die Mutter (16) ihre Längsbewegung in der Richtung, die zur Absenkung der Stufe einer ersten, längs angeordneten Antriebsvorrichtung (22) führt und in der anderen Richtung von einer ebenfalls längs angeordneten, zweiten Antriebsvorrichtung (23, 24) erhält, wobei die beiden Antriebsvorrichtungen (22; 23, 24) in einem Gehäuse (27) geringer Stärke, das auf der Außenseite der Rahmenwange (2) unterhalb und in Nachbarschaft mit dem Einstieg angeordnet ist, gelagert sind.
  2. Einstieg nach Anspruch 1,
    dadurch gekennzeichnet, daß die erste Antriebsvorrichtung (22) aus mindestens einem Pneumatikzylinder aufgebaut ist.
  3. Einstieg nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, daß die zweite Antriebsvorrichtung aus mindestens einem Pneumatikzylinder aufgebaut ist.
  4. Einstieg nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, daß die zweite Antriebsvorrichtung aus einer mechanischen Rückstellvorrichtung (23, 24) aufgebaut ist.
  5. Einstieg nach Anspruch 4,
    dadurch gekennzeichnet, daß die Rückstellvorrichtung eine Zusammendrückfedervorrichtung (23, 24) ist.
  6. Einstieg nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, daß die erste und zweite Antriebsvorrichtung aus ein und demselben doppeltwirkenden Pneumatikzylinder aufgebaut ist.
  7. Einstieg nach einem der Ansprüche 1 bis 6,
    dadurch gekennzeichnet, daß das Schneckenteil (15) aus Schraubennuten mit niedrigem Neigungswinkel aufgebaut ist.
EP94400475A 1993-03-29 1994-03-07 Schwenkbarer Einstieg für eine Tür eines Eisenbahnfahrzeuges Expired - Lifetime EP0618125B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9303594 1993-03-29
FR9303594A FR2703318B1 (fr) 1993-03-29 1993-03-29 Emmarchement mobile pour porte de vehicule ferroviaire.

Publications (2)

Publication Number Publication Date
EP0618125A1 EP0618125A1 (de) 1994-10-05
EP0618125B1 true EP0618125B1 (de) 1996-06-19

Family

ID=9445452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94400475A Expired - Lifetime EP0618125B1 (de) 1993-03-29 1994-03-07 Schwenkbarer Einstieg für eine Tür eines Eisenbahnfahrzeuges

Country Status (5)

Country Link
EP (1) EP0618125B1 (de)
AT (1) ATE139498T1 (de)
DE (1) DE69400251T2 (de)
ES (1) ES2091101T3 (de)
FR (1) FR2703318B1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1627749A (en) * 1925-01-10 1927-05-10 Nat Pneumatic Co Manually-operable door and step
CH443160A (de) * 1965-05-12 1968-01-31 Bulova Watch Co Inc Piezoelektrisch angetriebene Stimmgabel
DE3320267A1 (de) * 1983-06-04 1984-12-06 Schultz, Rainer M., 2000 Hamburg Fahrgasttransportfahrzeug, insbesondere busse, wie reisebusse od. dgl.
FR2632592B1 (fr) * 1988-06-08 1990-08-17 Alsthom Emmarchement a marches escamotables pour porte d'acces a un vehicule ferroviaire de transport de voyageurs
FR2633576B1 (fr) * 1988-07-01 1991-02-15 Alsthom Emmarchement a marches escamotables pour porte d'acces et de sortie d'un vehicule ferroviaire de transport de voyageurs

Also Published As

Publication number Publication date
ATE139498T1 (de) 1996-07-15
ES2091101T3 (es) 1996-10-16
FR2703318B1 (fr) 1995-06-23
EP0618125A1 (de) 1994-10-05
DE69400251T2 (de) 1996-11-07
FR2703318A1 (fr) 1994-10-07
DE69400251D1 (de) 1996-07-25

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