WO2015022364A1

WO2015022364A1 - Method and device for locking a rail vehicle sliding door

Info

Publication number: WO2015022364A1
Application number: PCT/EP2014/067331
Authority: WO
Inventors: Franz FORET; Winfried MAREK; Martin Kronabeter
Original assignee: Siemens Ag Österreich
Priority date: 2013-08-14
Filing date: 2014-08-13
Publication date: 2015-02-19
Also published as: AT514630A1; AT514630B1; ES2654369T3; EP3033257A1; EP3033257B1

Abstract

The invention relates to a method for locking a rail vehicle door, which rail vehicle door comprises a movably supported door leaf (3), which door leaf can be moved by means of an axially movable rod (1). In a closed position of the door leaf (3), a locking lever (4) engages in a hole of a gate element (5). The locking motion is caused by a threaded connection (6, 7) between the rod (1) and the locking lever (4), and the door leaf (3) has an axial play (X) with respect to the rod (1).

Description

description

Method and device for locking a

Rail vehicle sliding door.

Technical area

The invention relates to a method and a device for locking a rail vehicle sliding door.

PRIOR ART Passenger compartment doors of rail vehicles are very often designed as sliding doors and must be secured against unintentional opening. In particular, while driving such a door must never open, neither by pressing a passenger compartment side

Signaling device (opening button) still by manual violence, e.g. Vandalism. For this purpose, on the one hand to provide an electrical or pneumatic locking of the drive components, which prevents a drive component in the current moment

receives invalid opening command. On the other hand, one is

Passenger door in the closed position also mechanically lock. For this purpose, several possibilities are known from the prior art. A frequently used option is a so-called safety position switch, which mechanically locks the door leaf in the closed position, wherein this lock can be opened electromagnetically. Other solutions include, for example, electric motors or pneumatic cylinders for this purpose. All of these

Solutions in common is the disadvantage that they have a variety require components for each appropriate

Attachment points are necessary on the vehicle and the

additional electrical and / or pneumatic lines must be performed to these components. Furthermore, for these solutions are appropriate controls on the part of

Vehicle electronics required, as well as an expense for the development of the control software is to be made. If a Schienenfahrzeugpassagierraumtüre be safely locked in this closed position without this considerable effort, so a system can be used, which

Rotary movement of a threaded spindle, as with some

Door systems is provided for door leaf movement, are used to actuate a locking device. For door operators with linear actuation, e.g. Racks or pneumatic cylinder drive, this system can not be used.

Presentation of the invention

The invention is therefore based on the object, a method and an apparatus for locking a

Specify rail vehicle sliding door, which ensures free locking of a rail vehicle door by the operation of a linear drive free of electrical or pneumatic components.

The object is achieved by a method having the features of claim 1 and a device having the features of

Claim X solved. Advantageous embodiments are

Subject of subordinate claims. According to the basic idea of the invention, a method for locking a rail vehicle sliding door is described, wherein a door leaf is slidably mounted and between an open and a closed position by means of a

Drive is movable, and wherein the drive via an axially movable rod transmits a driving force to the door leaf. The method comprises closing the door by the following method steps:

- Moving the rod in the closing direction, wherein the rod is provided in a longitudinal section with an external thread, and in this external thread engages an internal thread which is arranged on a locking lever and said locking lever is guided along a fixedly connected to the car body of the rail vehicle backdrop and opposite the rod retains its relative position,

- Upon reaching the closed position of the door leaf continue to move the rod in the closing direction, with a

Axial play between the rod and the door leaf is provided, whereby the rod after moving to the closed position of the door leaf is moved by a certain length section,

- Simultaneously with the latter method step, rotating the locking lever by the external thread of the rod during the advancement of the rod in

Closing direction relative to the rod and positive engagement of the locking lever in a recess of the backdrop,

as well as the following steps to open the door:

Moving the rod in the opening direction by the amount of axial play between the rod and the door leaf, wherein the

Locking lever is rotated by the external thread of the rod from its positively connected with the backdrop locked position - Moving the rod in the opening direction wherein the locking lever is guided along the gate and relative to the rod retains its relative position. As a result, the advantage can be achieved to perform a locking of a rail vehicle door in door drives with a linear drive movement can be done without any kind of additional modules are required.

In particular, the locking function can be performed without additional electrical or electromechanical components.

This method of locking a rail vehicle door, effected in the closed position of the door leaf

Engagement of a locking lever in a recess of a link, wherein the locking movement by a

Threaded connection between the rod and the

Locking lever is effected while the door leaf has an axial play with respect to the rod. In this way, after closing the door leaf, the bar can be closed by one

certain length section to be further moved in the closing direction, said longitudinal movement is converted by the threaded connection in a locking movement. According to the invention, a door leaf of a sliding door is actuated by means of a rod (linear drive). For example, this linear drive may be a pneumatic or hydraulic cylinder or a power operated rod, e.g. a toothed rack moved by a pinion.

At this rod a door leaf is fixed so that this door leaf has a certain axial play, thus by a certain amount of length along the rod is displaceable. This attachment is advantageously carried out by means of a sleeve-shaped driver, which encloses the rod and which has suitable attachment points to a door leaf. This makes it possible, both sliding doors and swing-sliding doors with an inventive

Equip door lock, since the driver can be easily adapted to the respective door.

Furthermore, the rod is provided in a longitudinal section with an external thread. This external thread has such a great slope that no self-locking occurs. In this external thread engages an internal thread, which is arranged on a locking lever. On the car body of the rail vehicle a backdrop is arranged so that the locking lever, or a shape of the

Locking lever along the sliding portion of the door leaf is guided on this backdrop and in this area his

Angular position with respect to the rod maintains. If the door leaf is in the closed position, then the

Engage locking lever in a correspondingly shaped recess of the link, or in a correspondingly shaped tail of the backdrop.

During a closing movement, the door leaf reaches its

End position (closed position), wherein the axial play between the door leaf and the rod assumes the value zero, so that the rod after reaching the end position of the door leaf still by the amount of axial play

advanced. This amount of length, in which the door leaf has already taken its final position, but the rod is still moving and the locking lever is already in the recess of the backdrop is

according to the pitch of the thread in one

Angle position change of the locking lever

(Locking movement) implemented so that the

Locking lever engages in the recess of the gate. In this locked position, a force acting directly on the door leaf can not cause any opening of the door leaf, since this force is transmitted via the sleeve-shaped driver to the locking lever which is in this position

Position, however, engages in the recess of the guide slot, and thus positively connected with this slide guide. When opening, the rod is moved in the opening direction. The rod moves due to the in

locked position of the door leaf maximum axial clearance between the rod and the door leaf first around the

Length of axial play. On the door leaf, or the driver acts while no driving force. During the movement around this length section becomes by the thread between the rod and the locking lever a

Rotary movement of the locking lever caused, which rotates the locking lever from its locked position in the recess of the gate and thereby releases the lock.

The inventive method is to be carried out by means of a device which is movable for a rail vehicle door with a slidably mounted door leaf which is movable between an open and a closed position by means of a drive, and wherein the drive via an axial

movable rod is designed to transmit a driving force to the door leaf, wherein the door leaf is connected by means of a driver with the rod, wherein a

Axial play between the rod and the driver is provided, and wherein the rod is provided with an external thread into which the internal thread of a locking lever engages, wherein this thread pairing is not self-locking and wherein a shape of the locking lever is guided along a fixed to the car body scenery, wherein the relative movement range of the driver is limited by a projection on the rod and the locking lever, and wherein the gate has a recess in which the shape of the locking lever engages when the

Door leaf assumes its closed position and the rod is moved in the closing direction by the amount of axial play.

A preferred embodiment of the invention provides to provide the external thread on a rod enclosing the threaded bush, which is torsionally rigidly connected to the rod. As a result, the advantage can be achieved to optimize the material pairing of the threaded connection or a

Provide external thread on a rod designed as a rack can. A further preferred embodiment of the invention provides to reduce the friction at the point of contact of the locking lever with the backdrop. For this purpose, a rotatably mounted roller can be provided at this contact point, whereby the wear is significantly reduced.

With the objective underlying the underlying method, it is possible to lock a

Rail vehicle door to perform, being used both for actuating the door leaf as well as for locking the same drive. Brief description of the drawings

They show by way of example:

Fig.l door lock, principle - locked.

Fig.2 Door lock, principle - locked, top view.

Fig.3 Door lock, principle - unlocked, top view.

Fig.4 Door lock, locked.

Fig.5 door lock, locked, oblique view.

Fig.6 Door lock, unlocked, oblique view.

Embodiment of the invention

Fig.l shows an example and schematically the principle of a door lock in the locked position. It is, abstracted abstract illustrated a door lock, wherein a rod 1 by means of a sleeve-shaped driver 2 a

Door leaf 3 moves. The rod 1 is along her

Slidably mounted longitudinally, so that they can be moved together with the driver 2 and the door leaf 3 in the opening direction A and in the closing direction B. In Fig.l the door leaf 3 assumes the closed position in which it is to be locked. A locking lever 4 has a bore in which an internal thread 7 is made, which engages in a corresponding external thread 6 of the rod 1. The slope of this thread pairing 6, 7 is chosen so that no self-locking occurs. This allows a rotation of the locking lever 4 by linear

Move the rod 1 done when the axial position the locking lever 4 is fixed. Furthermore, a backdrop 5 is provided, which with the car body of the

Rail vehicle is firmly connected, and on which a shape of the locking lever 4 is guided. In

shown locked position, this shape of the locking lever 4 is engaged in a recess of the gate 5. The rod 1 has an approach, wherein between the neck and the driver 2 is an axial play X.

The locking lever 4 increases depending on the axial

Position of the rod 1 each a certain angular position with respect to the rod 1 a. When the door leaf is open, the entire area of the door completely open until just before the locked position, the

Locking lever 4 an angular position, which is determined by the gate 5, since the locking lever is moved together with the driver 2. The thread pairing is blocked 6.7, there can be no rotation about the axis of the rod 1, since the shape of the locking lever 4 is guided along the gate. The axial clearance X assumes the value zero in the entire range from fully opened door leaf until just before the locked position. This ensures that the driver 2 is clamped between the locking lever 4 and a neck of the rod 1 and thereby the door leaf 3 with the door open no longitudinal play in the direction of movement.

In a closing operation, the rod 1 is moved in the closing direction B, whereby the door leaf 3 is moved by means of the driver 2 in the closing direction B. The axial clearance is zero. If the door leaf 3 reaches its closed position, then the corresponding end stops

Movement of the door leaf stopped. The rod 1 is still the amount of axial play X in the closing direction B moves, in this movement section of the rod 1, the door leaf 3 and the driver 2 are fixed. The gate 5 has a recess at a suitable position, so that the

Locking lever 4 when reaching the closed position of the door panel 3 is no longer guided by the link 5, but from this position about the longitudinal axis of the rod 1 is rotatable. Moving the rod 1 around the

Length section of the axial clearance X is converted over the slope of the thread pairing 6.7 in a rotation of the locking lever 4, so that it is rotated in the recess of the gate 5 and positively engages. At the end of

Locking process takes the axial clearance X its

Maximum value. In this case, the door leaf 3, or the driver 2 is clamped between end stops and the locking lever 4, so that the door leaf 3 has no play in this direction in the direction of movement. Fig.l shows this locked state in the end position.

In an opening operation, starting from a locked position, the rod 1 is moved in the opening direction A, wherein in a first movement portion, the rod 1 is moved to the reduction of the axial play X to zero. In this first movement section, the driver 2 and thus the door leaf 3 remain at rest. The locking lever 4 is rotated about the axis of the thread pairing 6.7, since its axial position in relation to the gate 5 is still fixed, the longitudinal movement of the rod 1 in the opening direction A thus on the slope of the thread pairing 6.7 a

Angle change of the locking lever 4 causes whereby this is pivoted from the locked position. From this position of the rod 1, the axial clearance X assumes the value zero and the driver 2 and attached to him door leaf are moved in the opening direction A. 2 shows by way of example and schematically the principle of a door lock in the locked position in a view from above. It is shown the Türverriegelung Fig.l, the view from above, that is shown on the door leaf level. In this view, the lock of the

Locking lever 4 in a recess of the link 5 particularly clearly visible. The recess of the gate 5 is executed in this schematic diagram as a beveled end of the gate 5.

3 shows by way of example and schematically the principle of a door lock in the unlocked position in a view from above. It is the abstracted embodiment of FIGS. 1 and 2 shown, wherein the door leaf 3 (not visible in Figure 3) is located at a position in the range of completely open door leaf to immediately before the locked position, ie in an intermediate position. In this position, the amount of axial play X is zero and the

Formation of the locking lever 4 is guided on the link 5.

4 shows an example and schematically a door lock in the locked position. FIGS. 4 to 6 show a

Door lock according to the inventive principle shown in Fig.l to 3, but with a concrete

Application example is shown. The door lock comprises a rod 1, a sleeve-shaped driver 2, a locking lever 4 and a link 5. The shape of the locking lever 4 is provided with a roller 8 to reduce the friction on the slide 5. The rod 1 has a lug, between which and a nut 12, the threaded bushing 11 clamped and thus firmly and non-rotatably connected. The driver 2 is by means of a Anti-rotation 10 sliding but angle stable connected to the rod 1 and the threaded bushing 11, wherein the rotation 10 is secured by a nut 9.

By providing the threaded bushing 11, in the

Making critical and expensive cutting of a male thread 6 directly into the rod 6 can be avoided. In addition, so can an optimal material pairing with the material of

Locking lever 4 can be achieved.

5 shows an example and schematically door lock in the locked position in an oblique view. It is shown the door lock of Figure 4, wherein the positive engagement of the locking lever 4 in a recess of the link 5 is particularly clear.

6 shows an example and schematically door lock in the unlocked position in an oblique view. It is a sectional view through a door lock as shown in Figure 4. The axial clearance X assumes in this unlocked position at approximately half-open door, as well as at all other positions except the locked position to zero.

List of terms

I rod

2 drivers

3 door leaf

4 locking lever

5 backdrop

6 external threads

7 internal thread

8 roll

9 union nut

10 anti-rotation device

II threaded bush

12 mother

A opening direction

B closing direction

X axial play

Claims

claims

A method for locking a rail vehicle door, wherein a door leaf (3) is slidably mounted and is movable between an open and a closed position by means of a drive, and wherein the drive via an axially movable rod (1) transmits a driving force to the door leaf (3) , with the following steps to close the door:

- Moving the rod (1) in the closing direction, wherein the rod (1) in a longitudinal section with a

External thread (6) is provided, and in this

External thread (6) an internal thread (7) engages which is arranged on a locking lever (4) and wherein said locking lever (4) along a fixed to the car body of the rail vehicle link (5) is guided and relative to the rod (1) its relative Position retains,

- when reaching the closed position of the

Door leaf (3) move the rod (1) in

Closing direction, wherein an axial clearance (X) between the rod (1) and the door leaf (3) is provided, whereby the rod (1) after reaching the closed

Position of the door leaf (3) to a specific

Length section is further movable,

- Simultaneously with the latter method step, twisting of the locking lever (4) by the

External thread (6) of the rod during the advancement of the rod (1) in the closing direction relative to the rod (1) and positive engagement of the

Locking lever (4) in a recess of the link (5), and with the following steps to open the door:

- Moving the rod (1) in the opening direction by the amount of axial clearance (X) between the rod (1) and the door leaf (3), wherein the locking lever (4) through the external thread (6) of the rod from his with the backdrop ( 5) positively locked locked position is rotated

- Moving the rod (1) in the opening direction wherein the locking lever (4) along the link (5) is guided and relative to the rod (1) retains its relative position.

Door locking device for a

Rail vehicle door with a slidably mounted door leaf (3) which is movable between an open and a closed position by means of a drive, and wherein the drive via an axially movable rod (1) transmits a driving force to the door leaf (3), characterized in that the Door leaf (3) by means of a driver (2) with the rod (1) is connected, wherein an axial clearance (X) between the rod (1) and the driver (3) is provided, and wherein the rod (1) with an external thread (6) is provided, in which the internal thread (7) of a locking lever (4) engages, said

Thread pairing is not self-locking and wherein a shape of the locking lever (4) along a fixed to the car body gate (5) is guided, wherein the relative range of movement of the driver (2) by an approach to the rod (1) and the

Locking lever (4) is limited, and wherein the Sliding link (5) has a recess into which the shape of the locking lever (4) engages when the door leaf (3) assumes its closed position and the rod (1) in the closing direction by the amount of axial clearance (X) is moved on.

Door locking device according to claim 2, characterized in that the driver (2) is designed to receive a pivot sliding door.

Door locking device according to one of claims 2 or 3, characterized in that the external thread (6) is provided on a with the rod (1) torsionally rigidly connected threaded bushing (11).

Door locking device according to one of claims 2 to 4, characterized in that the shaping of the locking lever (4) at the contact point with de backdrop (5) with a rotatably mounted roller (8) is equipped.