EP4486628A1 - Weiche mit auffahrmechanismus - Google Patents
Weiche mit auffahrmechanismusInfo
- Publication number
- EP4486628A1 EP4486628A1 EP23716419.9A EP23716419A EP4486628A1 EP 4486628 A1 EP4486628 A1 EP 4486628A1 EP 23716419 A EP23716419 A EP 23716419A EP 4486628 A1 EP4486628 A1 EP 4486628A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- switch
- spiral spring
- adjusting slide
- torsion
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/10—Locking mechanisms for points; Means for indicating the setting of points
Definitions
- the invention relates to a switch with an adjusting device, which is set up to set the switch with a drive via an adjusting slide, the switch having a drive mechanism with a mechanical clutch and a spring element, the clutch being set up to provide the drive to decouple from the adjusting slide when the adjusting slide leaves a target position when moving up, and the spring element is set up to couple the drive with the adjusting slide when the adjusting slide is in the target position.
- the invention also relates to an adjusting device for a switch, comprising a spring element, the adjusting device being designed to be installed in a fallback switch according to one of the preceding claims.
- a mobile switch drive should allow the movement of the switch tongues forced by the moving wheel to move non-destructively from a specified opening force.
- This opening mechanism in the drive must also be reversible so that the point drive is then ready for use again and can return or be returned to the original end position.
- a mobile switch is described, for example, in WO 9629227 Al.
- the switch which is normally controlled by the switch drive (only possible when controlling switch blades, not possible when controlling a frog)
- considerable forces are introduced into the switch drive from the switch side via the adjusting slide.
- the adjusting slide starts moving in one direction or the other under the influence of the force acting on it from outside (depending on which end position the switch is opened from).
- the locking slide is moved out of the recess against the force of a pressure spring acting on it via bevels on the locking slide and corresponding bevels on a recess in the adjusting slide. If the locking slide is finally completely disengaged from the recess of the adjusting slide, the axial fixing of the adjusting slide is removed, so that it can follow the further movement of the switch tongue that is lying down due to the opening.
- a coil spring or a stack of disc springs can be used, which is held in a suitable housing and stores energy for resetting the switch when the switch is opened.
- the opening force must overcome a resistance force, which is determined, for example, by a preload force via an adjusting screw.
- a vertical force resulting from the pretensioning force is transmitted to the adjusting slide. Accordingly, the resistance force to be overcome is ideally a function of the vertical force and the coefficient of friction on the adjusting slide.
- the adjusting screw is subject to settling effects that can lead to a loss of force.
- the coefficient of friction on the adjusting slide depends on many parameters, including: a. the condition of the lubricant, the surface properties of the frictional contact and coatings.
- the object of the invention is to provide a switch with an opening mechanism with which the properties of the opening mechanism can be guaranteed to be as constant as possible over the operating time with regard to the forces required for opening.
- the spring element consists of a structural unit or an assembly, comprising a torsion spring and a spiral spring, the torsion spring and the spiral spring being mechanically coupled to one another in a torsionally rigid manner, such that a torque due to the introduction of force into the spiral spring is perpendicular to the axis of rotation of the rotation spring, is transmitted between the rotation spring and the spiral spring.
- a structural unit exists when the torsion spring and the spiral spring are permanently connected to one another (for example by welding).
- An assembly exists when the torsion spring and the spiral spring represent two components that are connected to one another, for example by a detachable splined shaft connection.
- the connection between the spiral spring and the torsion spring is torsionally rigid. In connection with the invention, this means that a bending moment, which is introduced into the torsion spring via the spiral spring, is completely or at least largely transferred to the torsion spring. Of course, every connection between two components is not absolutely rigid.
- connection whose elasticity is negligibly low compared to the technical spring properties of the torsion spring and the torsion spring (elasticity, which is described by a spring constant CB of the torsion spring, CT of the torsion spring) and can therefore technically be described as rigid .
- torsionally rigid also means that a torque, for example due to the introduction of force into the spiral spring perpendicular to the axis of rotation of the rotational spring, can actually be transferred between the rotational spring and the spiral spring.
- the advantage of the rigid connection is that the forces of the spring element introduced into the spring element lead to a deformation of the spring element as a whole without friction losses (which would act as damping). This can also reduce wear effects that would negatively influence the properties and thus the behavior of the opening mechanism during operation.
- the advantageous consequence is that the spring element also over Has uniform properties over longer operating times and this in particular reduces the maintenance effort for the point drive.
- the spring element consisting of a torsion spring and a spiral spring, also represents the central functional element of a very compact structure mechanism, whereby the required spring stiffness, i.e. H .
- a sufficiently soft spring is achieved by a mechanical coupling of the torsion spring and the spiral spring. This mechanical coupling causes the springs to be connected in series, so that the spring stiffness of the spring element is reduced compared to the torsion spring and the spiral spring, viewed individually, according to the formula:
- the torsion spring can be made comparatively soft in order to be able to primarily absorb the energy that is introduced into the spring element by the adjusting slide when it is opened.
- the spiral spring must deform to such an extent that it allows the spring element to be released from the receptacle (e.g. recess) provided in the adjusting slide.
- the deformation of the torsion spring can also have a supporting effect.
- the spiral spring is coupled with a free end to the adjusting slide in such a way that a displacement of the adjusting slide bends the spiral spring.
- a driving mechanism is possible, which is geometrically very simple and therefore particularly robust.
- the mechanical coupling is formed by a positive connection between the free end of the spiral spring and the adjusting slide.
- a form fit has the advantage that the spring element can be easily mounted in the drive mechanism.
- a mechanical coupling to the adjusting slide is then also easily possible and reversible, i.e. H .
- the mechanical coupling can be canceled when the switch is opened and then restored again.
- the free end of the spiral spring engages in a recess in the adjusting slide.
- the spiral spring is taken along when the adjusting slide moves when the switch is opened.
- the deformation of the spiral spring (and the torsion spring) then causes the end of the spiral spring to move out of the recess and this results in a mechanical decoupling between the spring element and the adjusting slide. This protects the adjusting device from mechanical damage.
- the free end of the spiral spring has play in the recess.
- a recess that allows play between the adjusting slide and the spring element facilitates the movement between these two components, as long as there is still a mechanical connection between the two components in the direction of movement of the adjusting slide when the switch is opened.
- the spiral spring can change the angle as it bends between its end and the adjusting slide without the two components jamming. As a result, the behavior of the spring element when driving up can be better predicted and wear when driving up is advantageously reduced.
- At least one roller is attached to the end of the spiral spring, which is designed to be supported on the spiral spring when the switch is opened.
- Attaching a roller advantageously reduces friction as the end of the spiral spring moves out of the recess. Even if the spiral spring subsequently opens when the switch continues to open, i.e. H . With a further linear movement of the adjusting slide, while the spiral spring has already moved out of the recess, relative to the adjusting slide, the roller reduces the friction between the end of the spiral spring and the adjusting slide as it rolls along on the adjusting slide. In this way, wear can advantageously be further reduced.
- the torsion spring is designed as a torsion bar.
- Torsion springs which are designed as torsion bars, advantageously have design features that make the spring insensitive to notch effects during deformation. This means that the spring can reliably fulfill its function even after prolonged use.
- Torsion springs for example, have a torsion area with a reduced diameter, which merges into a thickening at the ends of the torsion bar, this thickening serving to mechanically connect the ends of the torsion bar to adjacent components (here a clamping in the housing and a connection to the spiral spring).
- the torsion spring is held with a fixed end in a torsionally rigid manner in a holder of the adjusting device. This advantageously ensures that the torsion spring has easily predictable spring behavior.
- the torsionally rigid holder in the adjusting device creates mechanically easily predictable conditions in this regard.
- such a mount is not absolutely torsionally rigid, but compared to the spring stiffness of the torsion spring it can be described as torsionally rigid from a technical point of view.
- the torsion spring is torsionally rigidly bound with a coupling end to a coupling end of the spiral spring to form a coupling point.
- the torsionally rigid connection between the respective coupling ends of the spiral spring and the torsion spring also creates clear and easily predictable conditions.
- the division of tasks between the two springs, namely that the spiral spring bends primarily and the torsion spring primarily twists when a load is transferred to the spring by the adjusting slide during opening, is thereby specified in the design.
- the spiral spring and the torsion spring form the legs of a right angle in the coupling point in the relaxed state.
- This geometric design of the spring element advantageously ensures that the introduction of a torsional moment into the torsion spring can be carried out by the spiral spring at the coupling point with a comparatively high degree of mechanical certainty.
- the torsion spring is also subjected to a transverse force, which will lead to a certain bending of the torsion spring.
- the deformation of the torsion spring will primarily be characterized by torsion of the same, which is why it technically has the properties of a torsion spring.
- a further torsion spring is connected to the opposite side of the spiral spring, which is connected to the torsion spring and the same torsion axis.
- the spring element that is created in this way has the shape of a large T, where the spiral spring is the vertical beam of this T and the torsion spring is the cross beam of the T.
- This arrangement has the advantage that a bending moment is introduced at the ends of the two torsion springs at the same time. From a mechanical point of view, the two torsion springs therefore also form a bending beam that is stressed in the middle and is firmly clamped at both ends.
- This structure is significantly stiffer in terms of the bending moment introduced than if only one torsion spring is connected with its end at the coupling point to the end of the spiral spring. Therefore, limiting the stress on the torsion spring to torsion can advantageously be even more isolated from undesirable bending stress.
- the two torsion springs are firmly clamped at their respective other ends. This creates a parallel connection of the torsion springs, so that their individual spring stiffness must be halved compared to the desired spring stiffness of the torsion spring assembly in order to obtain the desired resulting overall spring stiffness of the torsion spring combination.
- the spiral spring and the adjusting slide form the legs of a right angle when the switch is not in the open state.
- the adjusting slide then engages with its connection point at a right angle to the end of the spiral spring with a view to its direction of movement and can deform it in a defined manner.
- the spiral spring simultaneously transmits a torsional moment to the torsion spring connected to the coupling point.
- the spiral spring swings in the lateral direction of the movement of the adjusting slide and at the same time away from it, thus providing the mechanical connection between the spring element and the adjusting slide (at least in the axial direction of the adjusting slide).
- the spring element consists of a structural unit or an assembly, having a torsion spring and a spiral spring, the torsion spring and the spiral spring being mechanically coupled to one another in a torsionally rigid manner, in such a way that a torque due to the introduction of force into the spiral spring is transmitted perpendicular to the axis of rotation of the rotational spring between the rotational spring and the spiral spring.
- the adjusting device can be used to achieve the advantages that have already been explained in connection with the switch described in more detail above. What is stated about the switch according to the invention also applies accordingly to the adjusting device according to the invention.
- the described components of the embodiments each represent individual features of the invention that can be viewed independently of one another, which each also develop the invention independently of one another and thus also individually or in a combination other than that shown as part of the invention are to be viewed. Furthermore, the components described can also be combined with the features of the invention described above.
- Figure 1 shows an exemplary embodiment of the switch according to the invention with its functional relationships schematically
- Figure 2 shows a spring element schematically in a three-dimensional view, as shown in an exemplary embodiment of the switch according to the invention.
- the adjusting device according to the invention can be installed,
- FIG. 3 shows a schematic section showing a detent between the spring element with its spiral spring and the adjusting slide, these two components being shown in different stages of opening and in the closed (installed) state,
- Figures 4 and 5 show exemplary embodiments of spring elements, the spiral springs of which are provided with rollers at the free end in order to reduce friction in the grid RT and in the event of a parallel displacement of the spring element and the adjusting slide,
- FIG. 6 shows a switch drive with an exemplary embodiment of the adjusting device according to the invention in a first drive end position with the locking device according to the invention in a first position - equipped with a further exemplary embodiment of a spring element in the shape of a T.
- a switch is shown in a manner known per se as a schematic top view.
- Rails SN can be seen from the switch, which specify a first route FW1 and a second route FW2.
- the first route FW1 is the one that leads away from the track in curves when the switch is set accordingly, while the second route FW2 runs straight ahead.
- a switch drive 1 is provided with an adjusting slide 14, which can be moved in the lateral direction LR and is attached to an inner switch tongue WZ I and an outer switch tongue WZA.
- the switch tongues can be deformed, whereby the travel paths FW1, FW2 are set (the target positions of the adjusting slide can be seen in Figure 1 in that these are predetermined by the end positions of the switch tongues, which are solid for the first Route and dash-dotted lines for the second route are indicated).
- the position for the first route FW1 is shown in FIG. 1, with the position of the switch tongues for the second route FW2 being indicated by dash-dotted lines.
- RDL wheel handlebars and a HZ center piece are provided on the switch. These reduce the risk of a vehicle derailing at the switch. This also applies in particular if the switch is driven by a vehicle from a first travel direction AFR1 along the first route FW1 or from a second
- a route FW2 is approached.
- An opening occurs when a vehicle approaches from the second approach direction AFR2 even though the switch has set the first route FW1, or vice versa, a vehicle approaches from the approach direction AFR1 even though the switch has set the route FW2.
- the routes FW1, FW2 can be driven in both directions (double arrow), the directions AFR1, AFR2 only apply from the end of the switch towards the heart, since a switch cannot be opened from the start of the switch (the route is in this direction FW1, FW2 defined by the position of the switch tongues WZ I, WZA.
- the spring element according to the invention is shown schematically in FIG.
- This consists of your torsion spring TF and a spiral spring BF, which are connected to each other at a coupling point KPS.
- the coupling point consists, for example, of a splined shaft connection, not shown, but could also consist of a press fit or be a welded connection.
- the coupling end of the torsion spring KPT at the coupling point KPS is connected to the coupling end KPB of the spiral spring BF in such a way that an introduction of a driving force F in the adjusting slide, which is initiated at right angles (angle 5) to the course of the spiral spring BF, creates a torque M the torsion spring TF transmits.
- the torque is:
- FIG. 2 Shown in Figure 2 is a torsion angle a, which results from a torsion of the torsion spring TF.
- the spiral spring BF bends along a bending line BL, which is drawn in Figure 1 taking into account the torsion angle a.
- a deflection of the free end of the spiral spring ERB by an amount x occurs, which results from a superposition of the torsion of the torsion spring TF by an amount
- the deformation of the spring also results in a deflection of the free end of the spiral spring ERB perpendicular to the lateral direction LR by the amount y, which is why it moves away from the adjusting slide and in this way a mechanical decoupling of these two components can take place (more on this below) .
- the spring element FE stores energy through the deformation, so that after opening, when the switch drive is to be put back into operation, the spring element FE is taken back into the adjusting slide to produce a mechanical coupling by deformation.
- Figure 3 shows schematically how opening can take place.
- the mechanical coupling in Figure 3 is provided by a recess VT, into which the spiral spring BF protrudes with its free end FRB, forming a play SP.
- the game SP is required so that when the adjusting slide 14 is displaced in the lateral direction LR, a tilting movement of the free end FRB of the spiral spring BF can take place without the end FRB of the recess VT tilting.
- FIG. 3 in which the spiral spring BF is shown undeformed in a state a and slightly deformed in a state b during opening.
- state b the free end FRB of the spiral spring BF is supported on the edge of the recess VT and is slowly pushed out of the recess VT without tilting due to the play SP.
- the spiral spring As shown in state c, is completely released from the recess VT and is supported on an upper side OS of the adjusting slide 14. Now the adjusting slide 14 can slide under the spiral spring BF and the switch can thus be opened without other parts of the switch drive 1 being damaged via a mechanical coupling.
- Figure 4 and Figure 5 differ in that Figure 4 two rollers RL are each arranged on the edges of the spiral spring that are perpendicular to the lateral direction, with one or the other of the rollers being used depending on the direction of travel.
- a central roller is arranged which is sufficiently large that it supports both opening in one direction and opening in the other direction.
- the VT specialization is accordingly adapted to the RL role.
- FIG. 6 shows the switch drive 1 with an adjusting device AMSM consisting of a drive module AM and an adjusting module SM in a first drive end position, from which it can be transferred to a second drive end position.
- the switch drive 1 according to the invention can be positioned to the right or left of a switch on a track and is suitable for connection to movable switch parts that can be moved back and forth, namely both switch tongues and a movable centerpiece (however, the opening mechanism according to the invention only works with mounting on switch tongues). It is therefore assumed below that the switch drive 1 is connected to two switch tongues of a switch (see Figure 1).
- a drive housing 2 of this point machine 1 consists of a preferably metallic housing trough 3 and a non-slip and non-slip cover (not shown here), both of which together accommodate essential parts of the point machine.
- a drive motor 4 of a drive module AM designed for example as a three-phase motor, moves a ball screw drive 8 via a gear stage 5 with a pinion, an intermediate wheel and a large wheel or a chain drive (neither shown in detail).
- This ball screw drive 8 consists of a spindle 7, a spindle nut guided on the spindle 7 and an adjustable actuating force clutch 6 comprising the spindle nut.
- the actuating force clutch 6 acts on a drive mechanism 9 (also called a holding clutch device) of an actuating module SM.
- the driving mechanism 9 includes a clutch housing 10 and an adjustable holding clutch 11, which receives the spring element according to the invention.
- the torque-safe, longitudinally guided actuating force clutch 8 which includes the spindle nut, moves from the first end position shown, in which it rests against a stop 12 of the clutch housing 10 a free travel in an adjusting direction RI on the spindle 7 until it arrives at a stop 13 of the clutch housing 10 of the adjusting module SM.
- This clutch housing 10 is structurally united with the adjustable holding clutch 11 of the opening mechanism 9.
- the holding clutch 11 is positively connected to an adjusting slide 14 of the switch drive 1 via the detent RT (see FIGS. 3 to 5). Until the stops
- Actuating force clutch 6 against the stop 13 of the clutch housing 10 is taken from the first end position shown to the left in the adjusting direction RI and thereby moves the adjusting slide 14 via the retaining clutch 11 from the first end position shown, in which the adjusting slide is largely located in the drive housing 2, to a second end position in which it is extended furthest from the drive housing.
- the end of the adjusting slide 14 is connected via an external closure in the adjusting direction RI or R2 connected back and forth to switch tongues WZ I, WZA (see Figure 1).
- the holding clutch 11 is designed to protect the switch drive 1 from damage when the switch is opened.
- the holding clutch 11 then responds and releases the adjusting slide 14 when the switch is opened and high external forces are carried into the switch drive 1 .
- the process of opening a switch will be discussed in more detail later.
- the adjusting slide 14 is fixed in its two end positions in a non-positive and positive manner.
- a first locking slide 15 and a second locking slide 16 of a locking device designated as a whole by SPV are used, the first locking slide 15 being able to fall into a corresponding first recess of the adjusting slide 14 - not shown here - and the second locking slide 16 being able to fall into a - here too not shown - corresponding second recess of the adjusting slide 14 can occur.
- the locking slide 15 In the first drive end position of the switch drive 1 shown in FIG. 6, the locking slide 15 has collapsed into the first recess, not shown, of the adjusting slide 14 under the action of the coil springs of the spring device. A first drive contact, not shown, had changed its switching position and interrupted the supply circuit for the drive motor 4.
- the switch drive 1 is reversed into the second drive end position, with the locking slide 15 being disengaged from the first recess of the adjusting slide 14 and the first drive contact being reversed again, the locking slide 16 falls into the second recess of the adjusting slide 14 assigned to it, also not shown as soon as this recess is aligned with the longitudinal axis of the locking slide 16.
- the switch drive 1 according to the invention also has a test slide arrangement 21 with two test slides.
- test slides 22 One of the two test slides is visible in FIG. 1 and is designated by reference number 22. It is - not shown here - hinged to the adjacent switch tongue of the switch, not shown (see Fig. 1). The other of the two test slides is located underneath and is therefore not visible. It is - also not shown here - linked to the remote switch tongue of the switch.
- the two test slides 22 serve to report the actual position of the switch tongues controlled by the adjusting slide 14 to the switch drive 1. In this way, the breakage of the adjusting slide 14, the no longer existing articulation of the adjusting slide 14 to the switch tongues or the breakage of the switch tongues themselves should be detected.
- the test slides 22 are each articulated to one of the switch tongues to be moved in the outdoor system. They are moved back and forth in the drive housing 2 in a similar way to the adjusting slide 14, but not driven by the drive motor 4 like the adjusting slide 14, but rather driven by the switch tongue that is to be monitored.
- the drive housing 2 has a prepared installation space for the test slide arrangement 21 to the left and right of the adjusting slide 14.
- the installation of the test slide arrangement 21 in one of the prepared installation spaces takes place depending on the position of the switch drive 1 in relation to the switch.
- the test slide arrangement 21 is to be installed on the side of the adjusting slide 14 that faces the tongue tips of the switch tongues.
- FIG. 6 An alternative embodiment of the retaining clutch is shown in FIG. 6 compared to the geometric shape of the spring element FE shown in FIG. 2.
- the spring element FE according to FIG. 6 has a T-shaped shape, whereby according to FIG. 6 one looks at the T from above, so to speak.
- the torsion spring TF and another torsion spring WTF form the crossbar of the T, which is firmly clamped at the edge in the upper region of the tubular coupling housing 10.
- the spiral spring BF is attached to the two coupling ends of the torsion spring TF and the other torsion spring WTF pointing towards the center and protrudes downwards in the perspective shown, where the free end of the spiral spring BF is in the figure 3 to 5 engages in a recess of the adjusting slide 14.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022203037.0A DE102022203037A1 (de) | 2022-03-28 | 2022-03-28 | Weiche mit Auffahrmechanismus |
| PCT/EP2023/057711 WO2023186747A1 (de) | 2022-03-28 | 2023-03-24 | Weiche mit auffahrmechanismus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4486628A1 true EP4486628A1 (de) | 2025-01-08 |
| EP4486628C0 EP4486628C0 (de) | 2026-01-21 |
| EP4486628B1 EP4486628B1 (de) | 2026-01-21 |
Family
ID=85984933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23716419.9A Active EP4486628B1 (de) | 2022-03-28 | 2023-03-24 | Weiche mit auffahrmechanismus |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4486628B1 (de) |
| CN (1) | CN119013183A (de) |
| DE (1) | DE102022203037A1 (de) |
| WO (1) | WO2023186747A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US531238A (en) * | 1894-12-18 | wirben | ||
| US4637579A (en) | 1983-02-10 | 1987-01-20 | General Signal Corporation | Railroad switch mechanism |
| EP0814996B1 (de) | 1995-03-17 | 1999-10-27 | Siemens Aktiengesellschaft | Weichenantrieb |
| DE19518400A1 (de) | 1995-05-19 | 1996-11-21 | Friedrich Fischer | Vorrichtung zur Kraftspeicherung in Federspeichern |
| DE10330999A1 (de) | 2003-07-03 | 2005-02-03 | Siemens Ag | Einrichtung zum Umstellen von Weichen |
| DE202010005519U1 (de) * | 2010-05-28 | 2011-10-05 | Hanning & Kahl Gmbh & Co. Kg | Verschluss für Weichenstellvorrichtungen |
| KR101880586B1 (ko) | 2016-04-12 | 2018-07-23 | 주식회사 대명엔지니어링 | 선로전환기 |
| DE202018101643U1 (de) * | 2018-03-23 | 2019-06-27 | Hanning & Kahl Gmbh & Co. Kg | Weichenantrieb |
-
2022
- 2022-03-28 DE DE102022203037.0A patent/DE102022203037A1/de not_active Withdrawn
-
2023
- 2023-03-24 CN CN202380031641.0A patent/CN119013183A/zh active Pending
- 2023-03-24 EP EP23716419.9A patent/EP4486628B1/de active Active
- 2023-03-24 WO PCT/EP2023/057711 patent/WO2023186747A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP4486628C0 (de) | 2026-01-21 |
| CN119013183A (zh) | 2024-11-22 |
| DE102022203037A1 (de) | 2023-09-28 |
| EP4486628B1 (de) | 2026-01-21 |
| WO2023186747A1 (de) | 2023-10-05 |
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