EP3381763A1 - System and switch machine for railroad switches - Google Patents
System and switch machine for railroad switches Download PDFInfo
- Publication number
- EP3381763A1 EP3381763A1 EP18163275.3A EP18163275A EP3381763A1 EP 3381763 A1 EP3381763 A1 EP 3381763A1 EP 18163275 A EP18163275 A EP 18163275A EP 3381763 A1 EP3381763 A1 EP 3381763A1
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- European Patent Office
- Prior art keywords
- switch
- rod
- locking
- unlocking
- control rod
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- 230000033001 locomotion Effects 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 241001669679 Eleotris Species 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- 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
Abstract
Description
- The present invention relates to the railway technical field and in particular it relates to an improved switch machine for railroad switches, in particular used in highspeed switches.
- As known, the switch machines of the railroad switches generally provide at least one shifting actuator, which translates, by movement transmission means, the switch points of the railroad switch between two limit positions. More precisely, at the above mentioned limit positions, one switch point is drawn to the respective switch stock rail and is, therefore, called closed-by switch point, instead the other switch point is far from the respective switch stock rail and is called, therefore, far-removed switch point. At the opposite limit position, instead, the opposite situation occurs, and, therefore, the switch point that in the previous limit position was the closed-by switch point, is arranged at a predetermined distance from the respective switch stock rail and, therefore, becomes the far-removed switch point, instead the switch point that was previously far-removed is arranged close to the respective switch stock rail and, therefore, becomes the closed-by switch point.
- The movement from a limit position to the other is caused, as above disclosed, by an actuator, usually a hydraulic actuator having a predetermined actuation stroke arranged along an actuation direction.
- The switch machines of known type, furthermore, provide locking/unlocking members, also known as switch point lock means, that block the switch points in one of the above disclosed limit positions. Usually, the switch point lock means are moved from an unlocking configuration to a locking configuration through an overstroke of the actuator along the actuation direction.
- The switch machines of prior art have the drawback that if one of the switch points, in particular the one that acts as closed-by switch point, disengages from the operating tie-rod, for example at the respective "paw", owing to a damage of the above mentioned movement transmission means, the system can fail to detect the technical failure. In this situation, in fact, in the switch machines of prior art the operating tie-rod continues to be moved along the above mentioned movement direction by the actuation group anyway.
- As can be easily understood, the above disclosed drawback of switch machines of prior art makes the railway tract at which they are installed not able to satisfy the necessary safety requirements, thus, the safety of passengers is seriously compromised, or, however, damages to the railway carriages traveling in that railway tract can occur, thus causing difficulties and delays because of the interventions that have to be carried out to open up again the railway tract closed for the above mentioned technical failure.
- According to another aspect of the present invention, a switch machine is configured, in particular has a dimension, such that it is possible to mount it on a rail sleeper of the railroad switch.
- It is therefore an object of the present invention to provide an improved switch machine that is able to overcome the above mentioned drawbacks of the switch machines of prior art and, therefore, that are able to assure a high level of safety for the passengers and for the railway carriages traveling in the corresponding railway tract.
- This and other objects are achieved by a switch machine for railroad switches, according to the invention, comprising:
- a movement group provided with:
- at least an operating tie-rod configured in such a way to engage at opposite ends, respectively, a first and a second switch point by means of respective movement transmission members, said, or each, operating tie-rod being arranged to translate along a movement direction in order to move said first and said second switch point between two limit positions in such a way to alternatively displace one between said first and said second switch point in a position closed to the respective switch stock rail, whereby it is called closed-by switch point, and the other switch point in a far position from the respective switch stock rail, whereby it is called far-removed switch point, and vice versa;
- an actuation group arranged to actuate said translation of said, or each, operating tie-rod along said movement direction;
- a locking/unlocking group arranged to move from a locking configuration, in which is arranged to prevent said translation of said, or each, operating tie-rod, from moving from an unlocking configuration, in which it is arranged to allow said translation of said, or each, operating tie-rod, said locking/unlocking group being configured in such a way to be positioned in said locking configuration when said, or each, operating tie-rod is positioned in a position such that one between said first and said second switch point is positioned in a position closed to respective switch stock rail;
- In particular, the actuation group can comprise:
- an actuator provided with a fixed stem;
- an actuation slider provided with a cam portion and slidingly mounted on the fixed stem of the actuator;
- a movable body housed within a housing integral to said, or each, operating tie-rod, said movable body and said cam portion configured in such a way that said translation of said actuation slider and, therefore, of said cam portion along said fixed stem is adapted to cause the movement of said movable body from a locking position, in which it is arranged to engage in a fixed body in order to prevent said, or each, operating tie-rod from translating, and an unlocking position, in which said movable body is not engaged in said fixed body and is arranged to translate integrally to said, or each, operating tie-rod along said movement direction.
- Advantageously, the above disclosed translation of the actuation slider and of the cam portion integral to it, along the fixed stem of the actuator, is adapted to cause a rotation of the movable body about a rotation axis, in particular orthogonal to the movement direction, in order to cause the movable body to move from the unlocking position to the locking position, with respect to the fixed body.
- Advantageously, the control device is configured in such a way to prevent the movable body from rotating about the rotation axis and, therefore, from moving from the unlocking position to the locking position, if the first and the second control rods are not positioned in the above mentioned respective predetermined positions.
- According to an embodiment of the invention, the control device provides mutual engagement members positioned in predetermined positions of the first and of the second control rod and adapted to engage with respective mutual engagement members integral to the movable body only if the first and the second control rod are positioned in the predetermined positions. More in particular, the locking/unlocking group is adapted to move from the unlocking configuration to the locking configuration only if both the mutual engagement members are mutually engaged. For example, the mutual engagement members can be gears, for example gear wheels, adapted to be in gear only if the control rods are positioned in the above mentioned predetermined positions, in particular with respect to the locking/unlocking group. Advantageously, the control device comprises:
- a first and a second recessed portion each of which provided at a predetermined position of a respective control rod;
- a first and a second touching arm integral to said movable body, each said first and second touching arm adapted to be arranged in a respective recessed portion of a respective control rod allowing to said movable body to rotate about said rotation axis to move from said unlocking position to said locking position, only if said first and second control rod are positioned in said respective predetermined positions, in particular with respect to said locking/unlocking group.
- Preferably, the actuator is a double-effect hydraulic actuator. In particular, the hydraulic actuator is provided with a first and a second feeding channel of an actuation fluid and is configured in such a way to define a first and a second opposite push chambers. These are hydraulically connected to the first and to the second feeding channel, respectively. The actuation slider is driven to slide in a direction, or in the opposite direction, by pressure exerted on the first and/or on the second push chamber, by the actuation fluid.
- Preferably, the movable body provides a first and a second engagement portion adapted to engage, respectively, in a first and in a second locking seat provided in the fixed body, respectively, at a first and at a second position of the fixed body.
- In particular, each recessed portion can be a circumferential groove made on a respective control rod.
- Advantageously, each touching arm provides a contact portion substantially "fork-shaped" having a first and a second end arranged, in use, at opposite sides of the same control rod. More precisely, each end of the same touching arm is adapted to be positioned alternatively and selectively in the same circumferential groove, but at the opposite side with respect to the control rod.
- The invention will now be shown with the following description of its exemplary embodiments, exemplifying but not limitative, with reference to the attached drawings in which:
-
Fig. 1 diagrammatically shows a front view partially sectioned, in order to highlight some constitutive elements, of a switch machine according to the invention; -
Fig. 2 diagrammatically shows a plan view of the switch machine offigure 1 ; -
Fig. 3 diagrammatically shows a perspective front view of the switch machine offigure 1 ; -
Fig. 4 shows an enlargement of a portion offigure 3 in order to highlight some technical features; -
Fig. 5 diagrammatically shows a rear perspective view of the switch machine offigure 3 ; -
Fig. 6 diagrammatically shows a longitudinal section of a possible embodiment, according to the invention, of the actuation group that operates the translation of the, or each, operating tie-rod; -
Fig. 7 diagrammatically shows a front view partially sectioned of the locking/unlocking group according to the invention, in a locking configuration; -
Fig. 8 shows an enlargement of the engagement portion of the movable body and of the respective engagement seat of the locking/unlocking group offigure 7 ; -
Fig. 9 shows a perspective view of the switch machine according to the invention with the locking/unlocking group in a locking configuration; -
Fig. 10 shows in detail a front view partially sectioned of the control device, according to the invention, in a position in which it permits the unlocking of the locking/unlocking group, and therefore of the translation of the operating actuator; -
Fig. 11 shows in detail a front view partially sectioned of the control device according to the invention in a impediment position in which it prevents the locking/unlocking group from be locked; -
Figures 12 and13 show the locking/unlocking group in an unlocking configuration in which it translates from a first to a second locking position; -
Fig. 14 shows the locking/unlocking group in a locking configuration alternative to the locking configuration offigure 9 . - As diagrammatically shown in
figure 1 , a switch machine forrailroad switches 1, according to the invention, essentially provides amovement group 20 comprising at least an operating tie-rod having a first and asecond portion portions opposite ends second switch point movement transmission members rod movement direction 120, that is in particular substantially orthogonal to thetracks switch machine 1 is positioned. More in particular, the translation of theportions second switch point second switch point switch stock rail other switch point switch stock rail actuation group 70 is provided adapted to actuate the translation of the operating tie-rod 20, or of eachportion movement direction 120. - The
switch machine 1 furthermore, provides, a locking/unlockinggroup 50 arranged to move from a locking configuration, in which it prevents the operating tie-rod 20 from moving along themovement direction 120, to an unlocking configuration, in which, instead, it allows the above disclosed translation. More in particular, the locking/unlockinggroup 50, also known as switch point lock means, is configured in such a way to arrange itself in the locking configuration when the operating tie-rod 20, or eachportion second switch point switch stock rail - Furthermore, according to the invention, and illustrated in
figure 2 , theswitch machine 1 provides afirst control rod 31 and asecond control rod 32, advantageously but not essentially coaxially arranged one with respect to the other, adapted to translate independently one with respect to the other, along a direction parallel to the above mentionedmovement direction 120. More precisely, the first and thesecond control rod respective end first switch point 101 and to thesecond switch point 102. - In particular, the first and the
second control rod second switch point portions rod 20 are fixed to the switch points 101 and 102. More in particular, the first and thesecond control rod movement transmission members movement transmission members portions rod 20 are fixed to the switch points 101 and 102 (figure 2 ). - The ends 31b and 32b opposite to the
ends control rod support body 34. - In particular, the
actuation group 70 comprises anactuator 71 provided with a fixedstem 72, which is supported atopposite support portions actuation slider 75 is, then, provided slidingly mounted on the fixedstem 72 and provided with acam portion 73. - The
actuation group 70, furthermore, provides amovable body 41 housed within ahousing 42 integral to, or each, operating tie-rod portion respective end respective switch point end containment body 45 in which the above disclosedhousing 42 of themovable body 41 is provided. - In particular, the
movable body 41 and thecam portion 73 are configured in such a way that the translation ofactuation slider 75 and, therefore, ofcam portion 73 integral to it, along the fixedstem 72, causes themovable body 41 to move from a locking position, in which it is arranged to engage in a fixedbody 43, in particular integral to arail sleeper 200 of the railway tract at which theswitch machine 1 is provided, in order to prevent the operating tie-rod 20, or each itsportion movable body 41 is not engaged in the fixedbody 43 and is arranged to translate integrally to the, or each, operating tie-rod movement direction 120. The movement from the unlocking configuration to the locking configuration of locking/unlockinggroup 50 is caused, in particular, by an overstroke ofactuator 71 along an actuation direction parallel to themovement direction 120 of operating tie-rod - In particular, the translation of the
actuation slider 75, and in particular ofcam portion 73, along thestem 72 of theactuator 71, causes a rotation of themovable body 41 about arotation axis 141 that is orthogonal to themovement direction 120. In particular, themovable body 41 is pivoted to thecontainment body 45 at apivot 44. - In this way, the movement is caused of the
movable body 41 from the unlocking position (figures 12 and13 ) to the locking position (figures 7 and 8 ) about therotation axis 141. More precisely, thecam portion 73 provides a pushingsurface 37 arranged to cooperate with at least a guide roller, for example 2guide rollers movable body 41, in order to guide the movement of themovable body 41 into thehousing 42. At this regards, it is suitable to specify that, even though in the embodiment shown in the figures a first and asecond guide roller surface 37 provides a first and asecond portion straight portion 37c, in such a way to substantially define a trapezium-shaped cam portion (see example offigure 12 ). - More precisely, at determined positions of the
movable body 41, theguide rollers surface 37 by which they are guided towards above, or below, depending on the translation direction ofcam portion 73, causing, alternatively a translation along amovement direction 120, or a clockwise, or an anticlockwise rotation, ofmovable body 41 about therotation axis 141. In this way, the movement is caused ofmovable body 41, in particular of afirst engagement portion 41a, or of asecond engagement portion 41b, of the same, into, or out (depending on the direction of rotation that has been driven), respectively of a first, or of a second, lockingseat body 43, at the locking position, or the unlocking position, respectively. - A
control device 60 is furthermore provided configured in such a way to prevent the locking/unlockinggroup 50 from moving from the unlocking configuration to the locking configuration if both the first and thesecond control rod second switch point - In particular, the
control device 60 is configured in such a way to preventmovable body 41 from rotating about therotation axis 141 and, therefore, from moving from the unlocking position to the locking position, if the first and thesecond control rod figure 11 ). More in particular, thecontrol device 60 prevent theengagement portions movable body 41, depending if in that operative condition the first, or the second,switch point seat body 43. - The above disclosed situation, i.e. the missing positioning of both the
control rods rod 20, for example owing to a disengagement occurred at the respective "paw". In this situation, in fact, in the switch machines of prior art, the operating tie-rod continue, however, to be moved along the above disclosed movement direction by the actuation group e, therefore, the system does not detect the failure occurring. The technical solution proposed by the present invention, instead, allows to detect the above disclosed drawback, because thecontrol device 60 "detects" a relative motion between thecontrol rod 31 and thecontainment body 45, to which thesupport body 34 is integral, and, therefore, does not permit the locking/unlockinggroup 50 to move from the unlocking configuration to the locking configuration. In fact, if one of the two switch points, in particular if the closed-by switch point, due to the above disclosed mechanical failure, or for any other reason, is not actually moved by the operating tie-rod, and therefore remains closed to the respective switch stock rail, or, however, is not moved in the correct position of closed-by switch point, thecontrol rod control device 60, owing to the missing detection of the correct position of thecontrol rods group 50 to move in the locking configuration. In view of the above, theswitch machine 1, according to the present invention allows to considerably increase, with respect to the prior art solutions, the level of safety of the railway tract where it is installed. - Practically the
control device 60 is arranged to move from a consent position, in which it allows the locking/unlockinggroup 50 to move from the unlocking configuration to the locking configuration, if thecontrol rods figure 10 ), to an impediment position, in which it prevents the locking/unlockinggroup 50 from moving from the unlocking configuration to the locking configuration, if thecontrol rods figure 11 ). - In the embodiment shown, in detail, in
figure 4 , thecontrol device 60 provides a first and a second recessedportion respective control rod - As shown in the figures from 3 to 14, the
control device 60, furthermore, provides a first and a secondtouching arm movable body 41, in particular at opposite sides of it, advantageously at, or in proximity of, theengagement portions arms control rods containment body 45. - In this way, the touching
arms portion respective control rod movable body 41 to rotate about therotation axis 141 in order to move from the unlocking position to the locking position, only if both the first and thesecond control rod group 50. Instead, if, for example owing to the disengagement of a switch point from the operating tie-rod, one of the twocontrol rods movable body 41, that is caused from pushingsurface 37, is stopped. In fact, the corresponding touchingarm control rod portion movable body 41 is not able to exit the lockingseat body 43. In other words, thecontrol device 60 "does not permit" the locking/unlockinggroup 50 to move from the unlocking configuration to the locking configuration. - In the embodiment shown, for example, in the
figures 10 and11 , each recessedportion respective control rod arm contact portion second end same control rod movable body 41 is positioned at the first locking position, i.e. when theengagement portion 41a is positioned at the lockingseat 43a, if thecontrol rods movable body 41 about therotation axis 141 is not prevented by thecontrol device 60, and, therefore, theengagement portion 41a can disengage from the lockingseat 43a. This is because, theends arms movable body 41 to which they are fixed, aboutaxis 141, arrange in the respective recessedportions second end touching arm circumferential groove control rod engagement portions movable body 41 and therespective engagement seats body 43, are arranged in the first locking position (figures 7-9 ), or in the second locking position (figure 14 ). - As shown in detail in
figure 6 , the above disclosedactuator 71 can be a hydraulic actuator, in particular a double-effect hydraulic actuator. More in particular, thehydraulic actuator 71 provides a first and asecond feeding channel hydraulic actuator 71 is configured in such a way to define a first and a secondopposite push chambers second feeding channel actuation slider 75 is, therefore, driven to slide in a direction, or in the opposite direction, by pressure exerted in the first and/or in thesecond push chamber - Once the operating tie-
rod 20 is positioned in the correct position with the switch point lock means locked, i.e. with the locking/unlockinggroup 50 in the locking configuration, an electric control device of the switch points is furthermore provided, that is not in figure for reasons of simplicity, but of known type in the technical field. - Notwithstanding reference has been always made to the case in which the control device prevents the locking/unlocking group from moving from the unlocking configuration to the locking configuration when the control rods are not positioned in the respective predetermined positions, the skilled person in the art will have, however, no difficulty to adopt the solution according to the present invention also in the case that the control device is configured in such a way to prevent the locking/unlocking group from moving from the locking configuration to the unlocking configuration in the same condition, i.e. when the control rods are not positioned in the respective predetermined positions.
- According to another aspect of the invention, a system for operating a multipoint switch machine provides a plurality of switch machines for railroad switches as above disclosed and illustrated in the figures from 1 to 14.
- The foregoing description exemplary embodiments of the invention will so fully reveal the invention according to the conceptual point of view, so that others, by applying current knowledge, will be able to modify and/or adapt for various applications such embodiment without further research and without parting from the invention, and, accordingly, it is therefore to be understood that such adaptations and modifications will have to be considered as equivalent to the specific embodiments. The means and the materials to realize the different functions described herein could have a different nature without, for this reason, departing from the field of the invention. It is to be understood that the phraseology or terminology that is employed herein is for the purpose of description and not of limitation.
Claims (15)
- A switch machine for railroad switches (1) comprises:- a movement group (20) provided with:- at least an operating tie-rod (20a,20b) configured to be engaged at opposite ends (21,22), respectively, to a first and to a second switch point (101,102) by respective movement transmission members, said, or each, operating tie-rod (20a,20b) being arranged to translate along a movement direction (120) in order to shift said first and said second switch point (101,102) between two limit positions, in such a way to alternatively displace one between said first and said second switch point (101,102) in a position closed to the respective switch stock rail (111,112), whereby it is called closed-by switch point, and the other switch point (101,102) in a far position from the respective switch stock rail (111,112), whereby it is called far-removed switch point, and vice versa;- an actuation group (70) arranged to actuate said translation of said, or each, operating tie-rod (20a,20b) along said movement direction (120);- a locking/unlocking group (50) arranged to move from a locking configuration, where is arranged to prevent said, or each, operating tie-rod (20a,20b) from moving to an unlocking configuration, where is arranged to allow said, or each, operating tie-rod (20a,20b) to translate, said locking/unlocking group (50) being configured in such a way to place in said locking configuration when said, or each, operating tie-rod (20a,20b) is positioned in a position such that one between said first and said second switch point (101,102) is positioned in a position closed to the respective switch stock rail (111,112);said switch machine (1) being characterised in that it, furthermore, provides a first control rod (31) and a second control rod (32) movable independently one with respect to the other, each said first and second control rod (31,32) being configured in such a way to translate along a direction parallel to said movement direction (120) of said, or each, operating tie-rod (20a,20b), in that said first and said second control rod (31,32) have an end respectively fixed to said first and to said second switch point (101,102), and in that a control device (60), is furthermore provided, configured in such a way to prevent said locking/unlocking group (50) from moving from said unlocking configuration to said locking configuration, if said first and second control rod (31,32), and, therefore, if said first and said second switch point (101,102), are not positioned in respective predetermined positions.
- Switch machine for railroad switches (1), according to claim 1, wherein said actuation group (70) comprises:- an actuator (71) provided with a fixed stem (72);- an actuation slider (75) provided with a cam portion (73) and slidingly mounted on said fixed stem (72) of said actuator (71);- a movable body (41) housed within a housing (42) provided in a containment body (45) integral to said, or each, operating tie-rod (20), said movable body (41) and said cam portion (73) configured in such a way that said translation of said actuation slider (75) and, therefore, of said cam portion (73) along said fixed stem (72) is arranged to cause said movable body (41) to move from a locking position, where is arranged to engage in a fixed body (43) in order to prevent said translation of said, or each, operating tie-rod (20), and an unlocking position, where said movable body (41) is not engaged in said fixed body (43) and is arranged to translate integrally to said, or each, operating tie-rod (20) along said movement direction (120).
- Switch machine for railroad switches (1), according to claim 2, wherein said translation of said actuation slider (75) and of said cam portion (73) integral to it, along said fixed stem (72) of said actuator (71), is arranged to cause a rotation of said movable body (41) about a rotation axis (141) in order to cause said movable body (41) to move from said unlocking position to said locking position.
- Switch machine for railroad switches (1), according to claim 3, wherein said rotation axis (141) is orthogonal to said movement direction (120).
- Switch machine for railroad switches (1), according to claim 3, or 4, wherein said control device (60) is configured to prevent said movable body (41) from rotating about said rotation axis (141) and, therefore, from moving from said unlocking position to said locking position, if said first and said second control rod (31,32) are not positioned in respective predetermined positions.
- Switch machine for railroad switches (1), according to any previous claim, wherein said control device (60) provides mutual engagement members positioned in predetermined portions of said first and of said second control rod (31,32) and arranged to engage with respective mutual engagement members integral to said movable body (41) only if said first and said second control rod (31,32) are positioned in said respective predetermined positions, said locking/unlocking group (50) being arranged to move from said locking configuration to said unlocking configuration only if said mutual engagement members are mutually engaged.
- Switch machine for railroad switches (1), according to any claim from 3 to 6, wherein said control device (60) comprises:- a first and a second recessed portion (35,36) each of which provided at a predetermined position of a respective control rod (31,32);- a first and a second touching arm (65,66) integral to said movable body, each said first and second touching arm (65,66) arranged to position in a respective recessed portion (35,36) of a respective control rod (31,32) allowing said movable body to rotate about said rotation axis (141) in order to move from said unlocking position to said locking position, only if said first and second control rod (31,32) are positioned in said predetermined positions, in particular with respect to said locking/unlocking group (50).
- Switch machine for railroad switches (1), according to any previous claim, wherein said control rod (31,32) have respective end (31a,32a) integral to respective switch points (101,102) at engagement points (B,B') different from the engagement points (A,A') at which the ends of said, or each, operating tie-rod (20) are connected to said switch points (101,102), at the opposite ends (31b,32b), said control rod (31,32) being supported by a support body (34) integral to said containment body (45).
- Switch machine for railroad switches (1), according to any claim from 2 to 8, wherein said movable body (41) provides a first and a second engagement portion (41a,41b) arranged to engage, respectively, in a first and in a second locking seat (43a,43b) made in said fixed body (43), respectively, at a first and at a second position of said fixed body (43).
- Switch machine for railroad switches (1), according to claim 7, wherein each said recessed portion (35,36) is a circumferential groove provided in a respective control rod (31,32).
- Switch machine for railroad switches (1), according to claim 10, wherein each touching arm (65,66) has a contact portion (67,68) substantially "fork-shaped" having a first and a second end (67a,67b, 68a,68b) arranged, in use, at the opposite sides of the same control rod (31,32), each said first and second end (67a,67b, 68a,68b) of the same touching arm (65,66) being arranged to alternatively and selectively position in the same circumferential groove (35,36), but at the opposite side with respect to the control rod.
- Switch machine for railroad switches (1), according to claim 7, or 11, wherein each said touching arm (65,66) is integral to said movable body (41) at, or in the proximity of, a respective engagement portion (41a, 41b).
- Switch machine for railroad switches (1), according to any claim from 7 to 12, wherein said touching arms (65,66) are arranged to protrude towards said control rods (31,32) through respective apertures, or windows, (46a,46b) provided in said containment body (45).
- Switch machine (1) for railroad switches, according to any previous claim, characterised in that it is configured to be mounted on a rail sleeper (200) of the railway tract of interest.
- A system for operating railroad switches characterised in that it comprises a plurality of switch machines (1) for railroad switches according to any claim from 1 to 14.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102017000035928A IT201700035928A1 (en) | 2017-03-31 | 2017-03-31 | PERFORMANCE CONTROL CASE FOR RAILWAY DEVIATIVES |
Publications (2)
Publication Number | Publication Date |
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EP3381763A1 true EP3381763A1 (en) | 2018-10-03 |
EP3381763B1 EP3381763B1 (en) | 2020-01-08 |
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ID=59683812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP18163275.3A Active EP3381763B1 (en) | 2017-03-31 | 2018-03-22 | System and switch machine for railroad switches |
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EP (1) | EP3381763B1 (en) |
IT (1) | IT201700035928A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114475702A (en) * | 2022-01-24 | 2022-05-13 | 中车长江运输设备集团有限公司 | Pivot type suspension type monorail multi-turnout system and auxiliary switching device thereof |
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DE19535578A1 (en) * | 1995-09-14 | 1997-03-20 | Siemens Ag | Points drive with inner lock |
-
2017
- 2017-03-31 IT IT102017000035928A patent/IT201700035928A1/en unknown
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2018
- 2018-03-22 EP EP18163275.3A patent/EP3381763B1/en active Active
Patent Citations (4)
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DE2928194B1 (en) * | 1979-07-12 | 1980-10-16 | Siemens Ag | Point machine |
DE3511891A1 (en) * | 1985-04-01 | 1986-10-16 | Siemens AG, 1000 Berlin und 8000 München | Control, safety and monitoring device on points |
DE19535578A1 (en) * | 1995-09-14 | 1997-03-20 | Siemens Ag | Points drive with inner lock |
DE29610174U1 (en) * | 1996-05-29 | 1996-08-14 | Siemens Ag | Device for tester break detection |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114475702A (en) * | 2022-01-24 | 2022-05-13 | 中车长江运输设备集团有限公司 | Pivot type suspension type monorail multi-turnout system and auxiliary switching device thereof |
CN114475702B (en) * | 2022-01-24 | 2024-02-23 | 中车长江运输设备集团有限公司 | Pivot type suspension single-rail multi-switch system and auxiliary switch device thereof |
Also Published As
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EP3381763B1 (en) | 2020-01-08 |
IT201700035928A1 (en) | 2018-10-01 |
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