US20130068896A1 - Lock for Railway Switch Actuating Devices - Google Patents

Lock for Railway Switch Actuating Devices Download PDF

Info

Publication number
US20130068896A1
US20130068896A1 US13/699,821 US201113699821A US2013068896A1 US 20130068896 A1 US20130068896 A1 US 20130068896A1 US 201113699821 A US201113699821 A US 201113699821A US 2013068896 A1 US2013068896 A1 US 2013068896A1
Authority
US
United States
Prior art keywords
bolt
guide
tongue
hinge
remote
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.)
Abandoned
Application number
US13/699,821
Other languages
English (en)
Inventor
Ralf Cord-Brüning
Günter Worm
Jens Meinecke
Wolfgang Helas
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.)
Hanning and Kahl GmbH and Co KG
Original Assignee
Hanning and Kahl GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hanning and Kahl GmbH and Co KG filed Critical Hanning and Kahl GmbH and Co KG
Assigned to HANNING & KAHL GMBH & CO. KG reassignment HANNING & KAHL GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CORD-BRUNING, RALF, HELAS, WOLFGANG, MEINECKE, JENS, WORM, GUNTER
Publication of US20130068896A1 publication Critical patent/US20130068896A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/20—Safety means for switches, e.g. switch point protectors, auxiliary or guiding rail members
    • 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 lock for railway switch actuating devices.
  • Switches for track vehicles have switch tongues that are pivotally disposed between so-called stock rails of a switch and can be adjusted in transverse direction of the stock rails by means of the switch actuating device.
  • This tongue is therefore designated as engaging tongue.
  • the other switch tongue is designated as remote tongue because its tip end has a certain distance from the associated stock rail.
  • the lock has the purpose to positively lock the engaging tongue in the engaging position in order to prevent the same from being separated from the stock rail, because this might cause the track vehicle to be derailed.
  • a switch actuating device must therefore have an unlocking mechanism which unlocks the lock before the proper actuating operation may commence.
  • the switch When a track vehicle approaches the switch from the branch side and the switch is not in the right position for allowing the vehicle to pass through, the switch may also be actuated by the track vehicle itself in that the wheels of the track vehicle push the tongue that has been the remote tongue heretofore into the engaging position. This process is termed “riding open” the switch. In this case, the unlocking mechanism must assure that the locked state for the initially engaging tongue is cancelled timely enough.
  • a lock comprising: a locking member having a guide contour that extends in the direction in which the switch is actuated and forms a locking seat that projects transversely from the guide contour; a locking lever that is hinged to an engaging tongue and carries, at the end remote from the tongue, an arresting bolt adapted to be blocked at the locking seat; a guide bolt that is slidable in the guide contour; a hinge bolt connected to a remote tongue; a bearing block that is rotatable about the axis of the guide bolt and in which the arresting bolt, the guide bolt and the hinge bolt are journalled in a triangular configuration such that the arresting bolt and the hinge bolt are positioned on opposite sides of the guide contour and are closer to the engaging tongue than the guide bolt; and a spring that biases the remote tongue in the direction towards its remote position.
  • the engaged tongue remains initially blocked in the engaged position because the arresting bolt abuts at the locking seat.
  • the bearing block is subject to a torque that has the tendency to tilt the bearing block about the axis of the guide bolt.
  • the arresting bolt enters into the guide contour so that it is lifted off from the locking seat.
  • the spring may yield to a certain extent and thereby enable the hinge bolt to move in accordance with the tilting movement of the bearing block.
  • the spring assures that the bearing block is tilted in opposite direction. In this way, it is assured that the arresting bolt abuts again at the locking seat and reliably locks the engaging tongue.
  • FIG. 1 is a schematic cross-section of a switch and a related switch adjusting device
  • FIG. 2 is a top-plan view of the adjusting device shown in FIG. 1 ;
  • FIGS. 3 to 5 are sectional views analogous to FIG. 1 , for different operating states of the adjusting device.
  • FIG. 1 shows a switch 10 for truck vehicles and a lock 12 of an associated switch adjusting device.
  • the switch has two stock rails 14 , 16 and two switch tongues 18 , 20 .
  • the tongue 18 engages the stock rail 14 (engaging tongue), whereas the tongue 20 is remote from the stock rail 16 (remote tongue).
  • the lock 12 has a locking member 22 that is disposed stationary between the stock rails 14 , 16 and forms a guide contour 24 that extends in transverse direction of the stock rails.
  • the guide contour 24 is formed by a slot that extends straight in a wall of the locking member 22 for the largest part of its length and is widened at one end, on the left side in FIG. 1 , so that it forms a locking seat 26 for an arresting bolt 28 , the locking seat projecting transversely from the guide contour 24 .
  • the arresting bolt 28 is mounted on a free end of a Z-shaped angled locking lever 30 the opposite end of which is connected to the engaging tongue 18 by a hinge 32 .
  • the locking lever 30 and the arresting bolt 28 engaging the locking seat 26 assure that the engaging switch tongue 18 is positively locked in the engaged position.
  • the axis of the hinge 32 extends horizontally and the locking seat 26 is formed at the lower side of the guide contour 24 , the own weight of the locking lever 30 helps to reliably trap the arresting bolt 28 is in the locking position.
  • the arresting bolt 28 is held in a bearing block 34 that also accommodates a guide bolt 36 and a hinge bolt 38 .
  • the hinge bolt 38 establishes a hinge connection of the bearing block 34 with a link 40 that is again connected to the remote tongue 20 via a hinge 42 .
  • the axes of the arresting bolt 28 , the guide bolt 36 , and the hinge bolt 38 form a triangle.
  • the guide bolt 36 is slidably guided at the guide contour 24 .
  • the arresting bolt 28 and the hinge bolt 38 are offset towards the engaging tongue 18 , and they are disposed on opposite sides (above and below) the centre axis of the guide contour 24 .
  • the link 40 has a downwardly projecting lug to which a spring 48 is connected via a joint 46 .
  • the other end of the spring 48 is connected to a drive system, which has not been shown, of the switch actuating device via a control rod 50 .
  • the entire lock 12 is accommodated in a box-like casing 52 that is disposed below the stock rails 14 , 16 and has slightly elevated side walls in the part that is located between the stock rails, and the locking member 22 is held between these side walls.
  • the lock 12 in its entirety, has a symmetric construction, the plane of symmetry being defined by the locking lever 30 and the link 40 .
  • the locking member 22 has a C-shaped configuration with side walls disposed symmetrically relative to the locking lever 30 , and with slots that define the guide contour 24 being formed in these side walls.
  • the slots may be formed with congruent shapes in the walls of the casing 52 , so that the casing 52 may also be considered as part of the locking member.
  • the arresting bolt 28 passes through the entire casing 52 . In FIG. 2 , its central part is hidden behind the overlaid hinge bolt 38 .
  • each of the bearing block 34 and the guide bolt 36 are formed by two separate parts disposed on opposite sides of the plane of symmetry. Each part of the guide bolt 36 passes through the guide contour 24 and is supported in the corresponding part of the bearing block 34 .
  • the hinge bolt 38 connects the link 40 with the two parts of the bearing block 34 but does not fully reach up to the walls of the locking member 22 in which the guide contour 24 is formed.
  • the spring 48 is also formed by two symmetrically arranged spring members that are connected to the common joint 46 .
  • the opposite ends of these spring members are connected to the control rod 50 by a shaft 54 that is guided in elongated holes (not shown) in the walls of the casing 52 .
  • the lock 12 is unlocked when the switch is ridden open, i.e. when a track vehicle pushes the remote tongue 20 in the direction of the associated stock rail 16 . Then, a tensile force that is directed to the right side in FIG. 1 is transmitted to the link 40 via the hinge 42 .
  • the spring 48 is a tension spring that may yield under this force so that the joint 46 may be displaced further to the right in FIG. 1 .
  • the hinge bolt 38 that is supported in the bearing block 34 is also subject to a rightward tensile force. However, the bearing block 34 cannot yield to this force because it supports also the arresting bolt 28 that is still trapped at the locking seat 26 . Consequently, the engaging tongue 18 remains preliminarily blocked in the engaged position.
  • the tensile force exerted upon the hinge bolt 38 creates a torque that has the tendency to tilt the bearing block 34 clockwise in FIG. 1 .
  • the arresting bolt 28 is caught at the locking seat 26 and the guide bolt 36 that is also supported in the bearing block 34 engages the lower edge of the guide contour 24 , the bearing block 34 and the hinge bolt 38 tilt about the axis of the guide bolt 36 .
  • This causes the arresting bolt 28 to be levered upwardly and to clear the locking seat 26 .
  • the guide bolt 36 being slideable in the guide contour 24 , a translational movement towards the right in FIG.
  • the arresting bolt 28 may not have to move towards the left during the tilting movement, in which case it would interfere with the locking lever 30 that is supported at the tongue 18 .
  • a certain bearing play and a certain play of the guide bolt 36 in the guide contour 24 may help avoiding that the bearing block 34 gets jammed in the process described above.
  • FIG. 3 shows the condition in which the bearing block 34 has been tilted so far that the arresting bolt 28 has cleared the locking seat 26 and is now accommodated in the guide contour.
  • the exact shape of the locking seat 26 may therefore be seen more clearly in FIG. 3 .
  • the remote tongue 20 and the link 40 have slightly moved to the right in FIG. 3 .
  • the link has slightly been tilted about the hinge 42 because the bearing block 38 has been lifted.
  • the joint 46 to which the spring 48 is connected has also been displaced somewhat to the right. As the control rod 50 has not been actuated in the process of riding open the switch, the spring 48 has been expanded slightly.
  • FIG. 4 illustrates the condition at the end of this process.
  • the tongue 20 now engages the stock rail 16 whereas the tongue 18 is separated from the stock rail 14 .
  • the guide bolt 36 has been displaced to the right end of the guide contour 24 .
  • the arresting bolt 38 engages the straight upper edge of the guide contour 24 with its ends and has thereby prevented the bearing block 34 from being tilted further, so that the bearing block 34 has made a pure translational movement.
  • the spring 48 is expanded to a high degree and is thus under considerable tension. When the track vehicle has left the switch, the restoring force of the spring 48 may cause the switch to return to the initial position shown in FIG. 1 . In the end phase of this movement, the arresting bolt 28 will again fallin at the locking seat 26 , partly because of the own weight of the locking lever 30 but mainly because of the torque that the bearing bolt 38 exerts upon the bearing block 34 and now acts in counter-clock sense.
  • this self-locking effect is enhanced by the fact that the locking lever 30 has a Z-shape, so that a rightwardly directed force that acts upon the hinge 32 , together with the resisting force of the locking seat 26 , creates a torque in clock-sense which presses the locking bolt 28 deeper into the recess at the end of the guide contour 24 that forms the locking seat 26 .
  • this shape of the locking lever 30 has the consequence that the locking bolt 28 must slightly move to the right in the unlocking process.
  • the shape of the locking seat 26 may be selected such that, on the one hand, it permits this movement, but on the other hand assures the self-locking effect when the force is introduced via the locking lever 30 and the locking bolt is not lifted by the tilting movement of the bearing block 34 .
  • FIG. 5 illustrates the case that the switch is not ridden open but is actuated actively by means of the drive system (not shown) that acts upon the control rod 50 and pushes this control rod 50 towards the right in FIG. 5 .
  • the spring 48 is configured such that, in the initial condition shown in FIG. 1 , the windings of the spring are in block-engagement, so that the spring may transmit thrust forces. Then, the force of the control rod 50 is transmitted via the spring 48 and the joint 46 and further via the link 40 to the bearing bolt 38 . Then, the locked state may be cancelled in the same way as has been described above in conjunction with FIGS. 1 to 3 . Subsequently the tongue 20 is pushed into the engaged position by means of the control rod 50 and the spring 48 .
  • the lock 12 that has been shown here, it is not possible, however, to lock the tongue 20 in the engaged position. If this is desired, it is possible, however, to provide a second lock for the tongue 20 , this second lock having the same construction as the lock 12 that has been described here but is arranged mirror-symmetrically thereto (except for the spring 48 and the control rod 50 ). Then, however, the springs 48 should be configured such that, in the condition shown in FIGS. 1 and 5 , their windings are not in block-engagement but in a neutral position permitting the spring to be both, expanded and compressed, so that it is also possible to ride the switch open when the tongue 20 is the engaging tongue.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Lock And Its Accessories (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
US13/699,821 2010-05-28 2011-05-27 Lock for Railway Switch Actuating Devices Abandoned US20130068896A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202010005519U DE202010005519U1 (de) 2010-05-28 2010-05-28 Verschluss für Weichenstellvorrichtungen
DE202010005519.9 2010-05-28
PCT/EP2011/058723 WO2011147961A1 (de) 2010-05-28 2011-05-27 Verschluss für weichenstellvorrichtungen

Publications (1)

Publication Number Publication Date
US20130068896A1 true US20130068896A1 (en) 2013-03-21

Family

ID=44543992

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/699,821 Abandoned US20130068896A1 (en) 2010-05-28 2011-05-27 Lock for Railway Switch Actuating Devices

Country Status (12)

Country Link
US (1) US20130068896A1 (zh)
EP (1) EP2576314B1 (zh)
CN (1) CN103003129A (zh)
AU (1) AU2011257172B2 (zh)
BR (1) BR112012030283A2 (zh)
CL (1) CL2012003297A1 (zh)
DE (1) DE202010005519U1 (zh)
ES (1) ES2460068T3 (zh)
PL (1) PL2576314T3 (zh)
PT (1) PT2576314E (zh)
WO (1) WO2011147961A1 (zh)
ZA (1) ZA201208879B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120068022A1 (en) * 2010-09-16 2012-03-22 Chadda Iqbal Mechanical lock
CN108842534A (zh) * 2018-08-16 2018-11-20 西南交通大学 一种用于空轨道岔的大扭矩弹性可变约束铰

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112719998B (zh) * 2020-12-24 2022-04-22 广东普拉迪科技股份有限公司 一种可自由移动的夹具
DE102022203037A1 (de) * 2022-03-28 2023-09-28 Siemens Mobility GmbH Weiche mit Auffahrmechanismus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6616105B2 (en) * 2000-01-11 2003-09-09 Schreck-Mieves Gmbh Rail switch lock for points tongues
US20040069911A1 (en) * 2001-01-11 2004-04-15 Karl Schnedl Device for locking the end positions of moving points components
US7300023B2 (en) * 2003-11-19 2007-11-27 General Electric Company Machine for railway switching
US7484695B2 (en) * 2003-02-18 2009-02-03 Alstom Ferroviaria S.P.A. Switch machine for railway and tramway switches or the like

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE397696B (sv) * 1976-04-22 1977-11-14 Personer Sparteknik Ab Anordning vid sparvexel
DE29709420U1 (de) * 1997-05-30 1998-10-01 Hanning & Kahl GmbH & Co., 33813 Oerlinghausen Vorrichtung zum Verriegeln von beweglichen Weichenteilen
FR2905922B1 (fr) * 2006-09-14 2008-12-05 Vossloh Cogifer Sa Mecanisme de manoeuvre d'aiguilles
CN201385684Y (zh) * 2009-05-22 2010-01-20 新铁德奥道岔有限公司 道岔基尖轨锁闭装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6616105B2 (en) * 2000-01-11 2003-09-09 Schreck-Mieves Gmbh Rail switch lock for points tongues
US20040069911A1 (en) * 2001-01-11 2004-04-15 Karl Schnedl Device for locking the end positions of moving points components
US7484695B2 (en) * 2003-02-18 2009-02-03 Alstom Ferroviaria S.P.A. Switch machine for railway and tramway switches or the like
US7300023B2 (en) * 2003-11-19 2007-11-27 General Electric Company Machine for railway switching

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120068022A1 (en) * 2010-09-16 2012-03-22 Chadda Iqbal Mechanical lock
US8684318B2 (en) * 2010-09-16 2014-04-01 Spx International Limited Mechanical lock
CN108842534A (zh) * 2018-08-16 2018-11-20 西南交通大学 一种用于空轨道岔的大扭矩弹性可变约束铰

Also Published As

Publication number Publication date
WO2011147961A1 (de) 2011-12-01
ES2460068T3 (es) 2014-05-13
CN103003129A (zh) 2013-03-27
DE202010005519U1 (de) 2011-10-05
CL2012003297A1 (es) 2013-12-06
AU2011257172A1 (en) 2012-12-20
PL2576314T3 (pl) 2014-08-29
EP2576314A1 (de) 2013-04-10
PT2576314E (pt) 2014-04-30
BR112012030283A2 (pt) 2016-08-09
ZA201208879B (en) 2013-07-31
AU2011257172B2 (en) 2014-06-19
EP2576314B1 (de) 2014-03-19

Similar Documents

Publication Publication Date Title
CA2307644C (en) Switch box for railway, tramway points, or similar, particularly of the so called english type
CA1076886A (en) Retractable running-board, especially for a railway car door
US4286797A (en) Pin retracting mechanism for a trailer
US20130068896A1 (en) Lock for Railway Switch Actuating Devices
US20060174540A1 (en) Device for actuating and locking elevator doors comprising driving runners
EP3421700B1 (en) Door operator system, emergency release device and door isolation lock for a transit vehicle door
US11192755B2 (en) Device for actuating a car or shaft door of an elevator system
US7240913B2 (en) Sliding latch for fifth wheel hitch
US20130292982A1 (en) Longitudinal seat adjuster for a vehicle seat having easy entry functionality and folding functionality
CN103842207A (zh) 用于座椅调节器组件的形状配合接合闭锁件
US20180354533A1 (en) Switching machine for a railroad
JP6081192B2 (ja) プラットホーム用転落防止装置
CA1213239A (en) Cabin for an aerial cableway
JP2019514777A (ja) ケーブル輸送装置
CN104053846A (zh) 锁
JP5475164B1 (ja) プラットホーム用転落防止装置
EP2814710B1 (de) Fördervorrichtung
EP0448017B1 (en) Device and procedure for opening the doors of an elevator
US4016379A (en) Lock for safety cut-out switches
JP5477705B2 (ja) 搬送装置
EP1470983A1 (en) Point regulator
US859324A (en) Automatic railway-switch.
EP1865132A1 (en) Multi-point lock supplement for use with safe, garage, apartment or other door locks
US358933A (en) Safety-lock for switch-points
KR20220018151A (ko) 안전바와 연동된 휠체어 브레이크 장치

Legal Events

Date Code Title Description
AS Assignment

Owner name: HANNING & KAHL GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CORD-BRUNING, RALF;WORM, GUNTER;MEINECKE, JENS;AND OTHERS;REEL/FRAME:029347/0050

Effective date: 20121121

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE