JP2005238903A - Point switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a point switch capable of minimizing a gap between the side face of an operating rod and lock pieces, and suppressing variations in close contacting force before the end of conversion and at the time of disappearance of conversion power of the operating rod after being locked. <P>SOLUTION: A driving mechanism 30 for linearly reciprocating the operating rod 20 coupled with a tongue rail, and a lock mechanism 50 connected to the tongue rail to lock are provided. The lock mechanism 50 consists of a cam plate 60 for driving the lock pieces integrally rotated with a conversion gear 40, the lock pieces 70, 80, and lock rods 90a, 90b. The lock pieces 70, 80 are divided into lock pieces 71, 81 for locking the operating rod and lock pieces 75, 85 for checking the lock rods. When lock rod notches 95a, 95b and the lock pieces 75, 85 for checking lock rods are deviated from an engagement position, the lock pieces 75, 85 for checking lock rods are not forcedly engaged with the lock rod notches 95a, 95b but remained at a non-lock position while the lock pieces 71, 81 for locking the operating rod are engaged with operating rod locking faces 27a, 27b. Furthermore, they are forcibly released at the time of lock release operation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a turning machine that is attached to a turnout of a railway track and changes a traveling direction of a train by changing a Tongleil into a fixed position and an inverted position by an operation lever.

  As a technique of a conventional turning machine, for example, there is one disclosed in Japanese Patent Laid-Open No. 04-71958 of Patent Document 1. That is, the side of the disk on which the roller attached to the lock piece is coaxially and integrally rotated with the gear with the conversion roller by constantly applying pressure in the direction in which the lock piece is inserted into the operating and locking canopy notches by the spring force. This is a turning machine having a structure in which the movement of the lock piece is driven and controlled by being engaged with the cam surface formed in this way, and the operation lever and the lock are locked.

  In addition to reducing the play time when driving the lock piece, this turning machine controls the drive of the lock piece with spring pressure so that there is no gap where the lock piece can be inserted into the lock notch. Even if it happens, it will not be inserted with a force greater than the spring pressure, so if the spring pressure is designed appropriately, the lock piece will not be inserted into the lock notch even if there is little locking error. There is an advantage that can prevent the lock notch from being cut out.

Japanese Patent Laid-Open No. 04-71958

  However, in such a conventional technique, a gap in which the lock piece can be inserted is required on the side surface of the motion rod in order to lock the motion rod. Since the insertion force is reduced, even if the lock piece can be inserted into the lock notch, it cannot be inserted and there is a possibility that it cannot be converted. Therefore, the operation of the convertible locking mechanism can be performed reliably by taking a slightly larger gap between the operation side surface and the lock piece.

  However, since the gap between the side surface of the operation lever and the lock piece is somewhat larger, after the lock piece is inserted into the side surface of the operation rod, the gap between the side surface of the operation lever and the lock piece will be lost if the power for converting the operation rod is lost. This means that the contact force will be reduced due to the absence of the lock piece, and when using it attached to a branching device that requires a larger contact force setting, the lock piece must be operated in order to ensure a predetermined contact force. It is necessary to make the adhesive force just before the insertion into the gap large enough to fill the gap, and the value is very large. There was a problem that it was in a situation where it could not be set.

  The present invention has been made by paying attention to such problems of the prior art, and can reduce the gap between the side surface of the operation lever and the lock piece as much as possible. It is an object of the present invention to provide a rolling machine that is capable of suppressing the fluctuation of the adhesion force when the conversion power of the operation lever is lost by locking.

  The gist of the present invention for achieving the object lies in the inventions of the following items.

[1] In the switching machine (10) which is attached to the turnout of the railroad track and changes the traveling direction of the train by changing the Tongleil into a fixed position and an inverted position by the operation can (20).
A drive mechanism (30) for reciprocating linear movement of the operating rod (20) connected to the tongue rail, and a locking mechanism (50) for locking by locking to the Tongrel.
The drive mechanism (30) includes a conversion gear (40) that is rotationally driven by a motor and includes a conversion roller (48), and a drive cam plate (25) provided in the operation lever (20). The drive cam plate (25) is provided with operation locking surfaces (27a, 27b), and the conversion roller (48) of the conversion gear (40) is engaged with the drive cam plate (25), When the conversion gear (40) rotates, the operation can (20) reciprocates linearly,
The locking mechanism (50) includes a lock piece drive cam plate (60) that rotates integrally with the conversion gear (40), and a lock piece drive roller (74) by the lock piece drive cam plate (60). , 84) and a lock piece (70, 80) that is linearly driven via the lockable lock surface (27a, 27b) and is connected to the Tongler, and the lock piece (70, 80) is Consists of a locking cane that engages and disengages in the notch
The lock piece (70, 80) is divided into a lock piece (71, 81) for operation lock and a lock piece (75, 85) for lock lock check, and the lock piece for operation lock ( 71, 81) and the locking piece (75, 85) for locking the lock are respectively biased by biasing springs (72, 82, 76, 86) in the direction of pressing against the lock piece driving cam plate (60). Energized,
On the cam surface of the lock piece driving cam plate (60), an engagement cam surface for engaging the operation locking lock piece (71, 81) with the operation locking surface (27a, 27b). (63a, 63b) and a release cam surface (65a, 65b) for detaching the lock piece (71, 81) for operation lock from the operation lock surface (27a, 27b),
The lock pieces (71, 81) for the operation locking lock and the lock pieces (75, 85) for the lock lock check are respectively connected to the biasing springs (72, 82, 76, 86) during normal operation. Due to the urging force, the lock piece driving rollers (74, 84) of the lock pieces (71, 81) for the operation locking locks cause the operation lock locking surfaces (27a, 27b), the engagement cam surfaces (63a, 63b), which integrally operate so as to engage with the detaching cam surface (65a, 65b), and that the lock lock notch and the lock lock check lock piece (75, 85) are displaced from the engagement position. At this time, the locking pieces (71, 81) for the operation locking locks are moved to the operation locking lock surfaces (27a, 27b) by the engagement cam surfaces (63a, 63b) and the lock piece driving rollers (74, 84). Although engaged The lock piece (75, 85) for checking the lock is configured to remain in the non-locked position without forcibly engaging the lock notch, and to be forcibly unlocked during the unlocking operation. A tipper (10) characterized by that.

[2] In the turning machine (10) that is attached to the turnout of the railroad track and changes the traveling direction of the train by changing the Tongleil to the fixed position and the inverted position by the operation can (20),
A drive mechanism (30) for reciprocating linear movement of the operating rod (20) connected to the tongue rail, and a locking mechanism (50) for locking by locking to the Tongrel.
The drive mechanism (30) includes a conversion gear (40) that is rotationally driven by a motor and includes a conversion roller (48), and a drive cam plate (25) provided in the operation lever (20). The drive cam plate (25) is provided with operation locking surfaces (27a, 27b), and the conversion roller (48) of the conversion gear (40) is engaged with the drive cam plate (25), When the conversion gear (40) rotates, the operation can (20) reciprocates linearly,
The locking mechanism (50) includes a lock piece drive cam plate (60) that rotates integrally with the conversion gear (40), and a lock piece drive roller (74) by the lock piece drive cam plate (60). , 84) and a lock piece (70, 80) that is linearly driven via the lockable lock surface (27a, 27b) and is connected to the Tongler, and the lock piece (70, 80) is Consists of a locking cane that engages and disengages in the notch
The lock piece (70, 80) includes a lock piece (71, 81) for operation lock and a lock piece (75, 85) for lock lock contact with the lock piece (71, 81) for operation lock. ) And is provided with a biasing spring (79, 89) for biasing the lock locking lock piece (75, 85), and the operating lock locking piece (71, 81) The biasing spring (79, 89) is biased in the direction of pressing against the lock piece driving cam plate (60) via the locking lock checking lock piece (75, 85).
On the cam surface of the lock piece driving cam plate (60), an engagement cam for engaging the operation locking lock piece (71, 81) with the operation locking surface (27a, 27b). A surface (63a, 63b) and a release cam surface (65a, 65b) for detaching the operation locking lock piece (71, 81) from the operation locking surface (27a, 27b) are formed. ,
The lock piece (71, 81) for operation lock and the lock piece (75, 85) for lock check are operated by the urging force of the urging spring (79, 89) during normal operation. The lock piece drive roller (74, 84) of the lock piece (71, 81) for the operation lock is connected to the operation lock surface (27a, 27b), the engagement cam surface (63a, 63b), and the disengagement. It operates integrally when engaged with the cam surface (65a, 65b), and the operation is performed when the lock notch notch and the lock lock checking lock piece (75, 85) are displaced from the engagement position. The lock piece (71, 81) for the lock is engaged with the operation lock face (27a, 27b) by the engagement cam surface (63a, 63b) and the lock piece drive roller (74, 84). For the lock check The lock piece (75, 85) is configured to remain in the non-locked position without forcibly engaging with the lock notch, and to be forcibly unlocked during the unlocking operation. Machine (10).

  [3] A guide support member (16) integrated with a housing for guiding and supporting the lock locking lock pieces (75, 85) and the operating lock lock pieces (71, 81) is provided. The locking lock locking pieces (75, 85) are provided with widened portions (78, 88) that come into contact with the operating locking lock pieces (71, 81), and the biasing springs (79, 79). 89) is disposed between the widened portion (78, 88) and the guide support member (16) of the lock lock check piece (75, 85). The turning machine according to claim 2 (10).

The present invention operates as follows.
A switch machine (10) is attached to a turnout on the railway track, and changes the traveling direction of the train by changing the Tongleil into a fixed position and an inverted position by means of an operation lever (20). The operation lever (20) is connected to the Tongrel and reciprocates linearly by the drive mechanism (30), and the locking mechanism (50) is connected to the Tongrel and locks after the conversion.

  In the drive mechanism (30), the conversion gear (40) is rotationally driven by the motor at the time of conversion, and the conversion roller (48) of the conversion gear (40) is driven by the drive cam groove (25) of the drive cam plate (25) of the operation lever (20). 28) and is moved by the rotation of the conversion gear (40), whereby the operation lever (20) is reciprocated linearly.

  In the locking mechanism (50), the lock piece driving cam plate (60) rotates integrally with the conversion gear (40) at the time of conversion of the Tongrel. At the time of unlocking at the start of conversion, the lock piece (70, 80) is driven in the unlocking direction by the release cam surface (65a, 65b), and the operation locking lock surface (27a, 27b) and the locking lock notch (95a, 95b), the lock cane engagement end (77, 87) of the lock cane lock piece (75, 85) is pulled out. During the subsequent conversion, the lock piece drive rollers (74, 84) roll against the peripheral surface (64) of the lock piece drive cam plate (60) by the urging force of the urging spring (82). The unlocked state of (70, 80) is maintained.

  During the locking operation at the end of conversion, the lock piece (71, 81) of the lock piece (70, 80) is moved to the release cam surface (65a, 65b) of the lock piece driving cam plate (60). Engagement and engagement end of the locking piece (71, 81) for the locking pad (71, 81) engaged and driven in the locking direction to the locking surface (27a, 27b) and the locking notch (95a, 95b) (73, 83) and the lock cane engagement end (77, 87) of the lock piece (75, 85) for locking the lock can be engaged, and the operation lever (20) is locked.

  If there is a lock error, the following behavior occurs. That is, if it is normal, the lock piece (71, 81) for locking the lock and the lock piece (75, 85) for locking lock are integrated with the locking lock surface (27a, 27b), The cam surface (63a, 63b) and the disengagement cam surface (65a, 65b) are engaged to operate, but the lock cane notch (95a, 95b) and the lock lock check lock piece (75, 85) are provided. When it is displaced from the engaged position, the lock piece (71, 81) for operation lock is engaged with the lock surface (27a, 27b) for operation, but the lock piece (75, 85 for lock check) is engaged. The locking cane engagement ends (77, 87) of the) will hit the locking cane notches (95a, 95b). It does not engage with the notches (95a, 95b).

  The lock piece (71, 81) for the operation lock is moved via the lock lock (75, 85) by the biasing spring (79, 89) of the lock lock (75, 85). What is urged in the direction of pressing against the lock piece driving cam plate (60) acts as follows.

  The action when there is no locking error is the same as described above. When there is a lock error, the lock-cane notch (95a, 95b) and the lock-lock check lock piece (75, 85) are displaced from the engaged position, and the lock-lock check lock piece (75, 85). The locking cane engagement ends (77, 87) of the) will hit the locking cane notches (95a, 95b), but the urging springs (79, 89) of the buffer mechanism will perform a buffering action, forcing the lock canister. It does not engage with the notches (95a, 95b).

  On the other hand, the lock piece (71, 81) for the operation locking lock does not receive the urging force of the urging spring (79, 89), but the lock piece driving roller (74, 84) is engaged with the engagement cam surface (63a, 63b) is engaged and engages the operating locking surface (27a, 27b).

  In the case where the urging spring (79, 89) is disposed between the widened portion (78, 88) of the lock piece (75, 85) for locking and locking and the guide support member (16), Since the urging spring (79, 89) fits in the housing (11) of the tipping machine (10) in a compact manner, it is useful for reducing the size and weight.

  According to the turning machine according to the present invention, it becomes possible to forcibly engage the lock piece to the side surface of the operation lever, so that the gap between the side surface of the operation rod and the lock piece can be made as small as possible, and the conversion is completed. It is possible to suppress fluctuations in the adhesion force when the previous adhesion force and the operation lever are locked and the conversion power of the operation chamber is lost. In addition, since the operation can be locked even when the lock is out of order, the lock can be kept stable in the out-of-lock state, and the difference between the lock-can notch and the lock piece, that is, the out-of-lock state can be understood well. Adjustment is easy.

Hereinafter, various preferred embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a first embodiment of the present invention.

  The switch 10 is attached to a branching device on a railroad track, and changes the traveling direction of the train by switching a Tongleil (not shown) between a fixed position and an inverted position by an operation can 20. The switch 10 includes a drive mechanism 30 for reciprocating linear movement of an operation rod 20 connected to the Tongrel and a locking mechanism 50 for connecting and locking to the Tongrel.

  The drive mechanism 30 includes a conversion gear 40 that is rotationally driven by a motor (not shown) and includes a conversion roller 48, and a drive cam plate 25 that is provided in the operation canister 20. The operation canister 20 is supported by the housing 11 of the switch 10 so as to be able to move linearly so as to convert the tongrel. The operation cam lock surfaces 27 a and 27 b are provided on the drive cam plate 25 that moves in the housing 11. Is provided. The operation can 20 moves in a reciprocating linear manner when the conversion roller 48 of the conversion gear 40 engages with the drive cam grooves 28a and 28b of the drive cam plate 25 and the conversion gear 40 rotates.

  The locking mechanism 50 is engaged with and disengaged from the lock piece driving cam plate 60 that rotates integrally with the conversion gear 40, and the locking surfaces 27a and 27b of the operation cannula 20, and locks corresponding to the fixed position and the inverted position. The pieces 70 and 80 and the lock canisters 90a and 90b to which the lock pieces 70 and 80 are engaged and disengaged are connected. The lock canisters 90a and 90b are arranged so as to be integrated with each other in an overlapping manner.

  The lock pieces 70 and 80 are divided into operation lock lock pieces 71 and 81 and lock lock lock pieces 75 and 85, respectively. The lock pieces 71 and 81 for operation locking are arranged so as to be in sliding contact with each other, and the outer end face is guided and supported by a guide support member 15 integral with the housing 11. The lock pieces 71 and 81 for the operation locks lock the operation lock 20 and the lock locks 90a and 90b in the direction of pressing against the lock piece driving cam plate 60 by the biasing springs 72 and 82, respectively. Is biased in the direction.

  The locking lock check pieces 75 and 85 are arranged so as to be in sliding contact with each other, and the outer end surfaces thereof are guided and supported by the guide support member 16 integral with the housing 11. Then, the locking lock check pieces 75 and 85 are urged in the locking direction, which is the direction in which the lock pieces 71 and 81 are elastically contacted by the urging springs 76 and 86 that are buffer mechanisms, respectively. ing.

  The lock canisters 90a and 90b are respectively provided with lock cane cutouts 95a and 95b corresponding to the normal position and the inverted position, and the lock pieces 75 and 85 for the lock lock check of the lock pieces 70 and 80 are respectively locked. The locking cane engagement ends 77 and 87 are supported so as to be able to move linearly with respect to the locking cane notches 95a and 95b of the cans 90a and 90b.

  The lock pieces 71 and 81 for the locks 70 and 80 of the lock pieces 70 are provided with lock pins 73 and 83 that engage and disengage with the lock and lock surfaces 27a and 27b of the drive cam plate 25 of the lock 20. Lock piece drive rollers 74 and 84 that engage with the cam surface of the lock piece drive cam plate 60 are provided.

  On the cam surface of the lock piece driving cam plate 60, the operation cannula engaging ends 73 and 83 of the operation locking lock pieces 71 and 81 are engaged with the operation locking and locking surfaces 27a and 27b of the drive cam plate 25. Engaging cam surfaces 63a and 63b for engaging the locking cane engagement ends 77 and 87 of the locking cane locking check pieces 75 and 85 with the locking cane notches 95a and 95b corresponding to the fixed position and the inverted position. Is formed.

  On the cam surface of the lock piece driving cam plate 60, the operation cannula engaging ends 73, 83 of the operation locking lock pieces 71, 81 are arranged on the cam surface of the driving cam plate 25, contrary to the above. , 27b, and release cam surfaces 65a, 65b are formed for releasing the lock cane engagement ends 77, 87 of the lock cane check lock pieces 75, 85 from the lock cane cutouts 95a, 95b. . The cam surface of the lock piece driving cam plate 60 other than the engaging cam surfaces 63a and 63b and the disengaging cam surfaces 65a and 65b is a peripheral surface 64.

Next, the action will be explained
The switching machine 10 is attached to a turnout of a railway track, and changes the traveling direction of the train by changing the Tongleil into a fixed position and an inverted position by the operation canister 20. The motion can 20 is connected to the Tongrel and reciprocates linearly by the drive mechanism 30, and the locking mechanism 50 is connected to the Tongrel and locks after the end of conversion.

  In the drive mechanism 30, the conversion gear 40 is rotationally driven by the motor at the time of conversion, and the conversion roller 48 of the conversion gear 40 engages with the drive cam grooves 28 a and 28 b of the drive cam plate 25 of the operating can 20 to rotate the conversion gear 40. It moves by movement, and thereby the movement can 20 reciprocates linearly.

  In the locking mechanism 50, the locking canisters 90a, 90b are connected to the Tongrel and reciprocate by the conversion of the Tongrel, and the lock piece driving cam plate 60 rotates integrally with the converting gear 40 to lock the locking mechanism. The lock-locking lock pieces 71 and 81 of the lock pieces 70 and 80 and the lock-locking lock pieces 75 and 85 are linearly driven integrally by the piece driving rollers 74 and 84. The operation cannula engagement ends 73 and 83 of the operation cannula lock pieces 71 and 81 are engaged with and disengaged from the operation cannula lock surfaces 27a and 27b of the operation cannula 20, and are engaged during the lock and engaged during the conversion. Is released. Further, the lock cane engagement ends 77 and 87 of the lock pieces 75 and 85 for lock lock engagement are engaged with the lock cane cutouts 95a and 95b of the corresponding lock canisters 90a and 90b in a fixed position or an inverted position. Lock.

  When the tongue rail is changed, the lock piece driving cam plate 60 rotates integrally with the change gear 40. At the time of unlocking at the start of conversion, the lock pieces 70 and 80 are driven in the unlocking direction by the release cam surfaces 65a and 65b, so that the lock can be checked from the operation locking and unlocking surfaces 27a and 27b and the locking canches notches 95a and 95b. The lock cane engaging ends 77 and 87 of the lock pieces 75 and 85 are pulled out. During the subsequent conversion, the lock piece drive rollers 74 and 84 roll while being pressed against the peripheral surface 64 of the lock piece drive cam plate 60 by the urging force of the urging spring 82, and the unlocked state of the lock pieces 70 and 80 is maintained. Maintained.

  At the time of the locking operation at the end of conversion, the locking pieces 71 and 81 of the lock pieces 70 and 80 are engaged with the release cam surfaces 65a and 65b of the lock piece driving cam plate 60 in the locking direction. It is driven, and the operation lock engaging ends 73 and 83 of the operation lock lock pieces 71 and 81 and the lock lock check lock pieces 75 and 85 are moved to the operation lock lock surfaces 27a and 27b and the lock lock notches 95a and 95b. The locking cane engaging ends 77 and 87 are engaged, and the operation cannula 20 is locked.

  With reference to FIG. 3, the conversion operation of the rolling machine 10 will be described in more detail. FIG. 3 (1) shows a stereotactic locked state. When the conversion roller 48 moves out of the drive cam groove 28a of the drive cam plate 25 of the operation can 20 and enters the operation plate escape surface 29a, the operation cannula engagement surface 73 presses the operation cannula lock surface 27a. Is held in position. The operation cannula engagement end 73 of the lock piece 71 for the operation lock of the lock piece 70 is engaged with the operation lock surface 27a, and the lock engagement end 77 of the lock piece 75 for lock operation is locked. The tongue 90a engages with a lock notch 95a of the can 90a, and the tongrel is locked.

  When the conversion gear 40 rotates counterclockwise in the figure to convert the tongue rail to the reverse position, the release cam surface 65a pushes the lock piece drive roller 74, and the lock piece drive roller 74 moves from the escape surface 64a to the engagement cam surface. 63a, the lock piece 70 moves to the right in the drawing via the operation lock lock piece 71, and the lock lock engaging end 77 of the lock lock checking lock piece 75 is connected to the lock lock 90a. The lock piece drive roller 74 moves onto the peripheral surface 64 of the lock piece drive cam plate 60, and the state shown in FIG. When the conversion gear 40 further rotates, the conversion roller 48 pushes the drive cam groove 28b to convert the operation lever 20 to the inverted position, and after the state of FIG. 3 (3), the lock start state at the end of conversion in FIG. 3 (4). It becomes.

  When the conversion gear 40 further rotates from the position before the locking shown in FIG. 3 (4), the conversion roller 48 moves out of the drive cam groove 28b of the drive cam plate 25 of the operation can 20 and enters the operation plate escape surface 29b. The lock surface 27b is held in an inverted position by the operation cannula engaging end 83 being pressed, and the engagement cam surface 63b pushes the lock piece drive roller 84 to move the lock piece 80 to the left in the figure, and the operation of the lock piece 80 The locking cane engagement end 83 of the lock locking lock 81 is engaged with the operation locking surface 27b, and the locking lock engaging end 87 of the locking lock locking lock 85 is locked to the locking lock 90b. The state shown in FIG. 3 (5) where the tongue notch 95b is engaged and the tongrel is locked is obtained.

  Note that the lock piece 81 for the operation lock can be forcibly engaged by the engagement cam surface 63b even if there is no gap with the operation lock surface 27b. Compared with the force, the decrease in the adhesion of the Tongrel after the conversion can be suppressed. Therefore, when the contact force after the end of conversion is set to be large, it is not necessary to set the contact force immediately before the end of the conversion to be larger, and a failure that cannot be converted does not occur.

  The above is a normal operation without a lock error, but when there is a lock error as shown in FIG. 4, the following operation is performed. That is, if it is normal, the operation locking lock piece 81 and the lock adjustment lock piece 85 are integrally engaged with the operation locking surface 27b, the engagement cam surface 63b, and the release cam surface 65b. Works. However, when the lock lock notch 95b and the lock lock check lock piece 85 are displaced from the engagement position, the operation lock lock piece 81 is engaged with the operation lock surface 27b and the operation lock 20 is moved. However, as shown in FIG. 4, the lock lever engagement end 87 of the lock lock check lock 85 hits the lock ring notch 95b, but the biasing spring 86 of the buffer mechanism is buffered. It operates and does not forcibly engage with the lock notch 95b.

  In other words, when the positional relationship between the locking cane notch 95b and the locking lock checking lock piece 85 shifts, that is, a so-called lock failure state, the locking force of the urging spring 86 causes the locking of the locking lock checking lock piece 85. The can-engagement end 87 cannot be engaged with the locking cane notch 95b. However, even if there is little play in the gap between the operation locking padlock 81 and the operation locking surface 27b, it can be forcibly engaged with the operation locking surface 27b by the engagement cam surface 63b. It becomes locked. Therefore, the lock adjustment can be performed in the locked state without causing a decrease in the adhesion of the Tongrel, and the adjustment can be performed quickly.

  The same applies when the lock piece 70 is out of lock. When there is a lock error and the lock lock notch 95a and the lock lock checking lock piece 75 are displaced from the engagement position, the operation lock lock piece 71 is engaged with the operation lock surface 27a. Although the operation lever 20 is locked, the lock cane engagement end 77 of the lock piece 75 for locking the lock check strikes the lock notch 95a, and the urging spring 76 of the buffer mechanism performs the buffer operation, so that it is impossible. The lock can not be engaged with the lock notch 95a. Further, the lock piece 71 for the operation lock can be forcibly engaged with the operation lock surface 27a by the engagement cam surface 63a even if there is little play in the gap with the operation lock surface 27a. The lock can be locked and the lock adjustment can be performed in the locked state without causing a decrease in the adhesion of the Tongrel, and the adjustment can be made quickly.

FIG. 5 shows a second embodiment of the present invention.
In addition, the same code | symbol is attached | subjected to the site | part similar to the said embodiment, and the overlapping description is abbreviate | omitted.

  Also in the second embodiment, the lock pieces 70, 80 are the lock pieces 71, 81 for the operation lock and the lock pieces 75, 85 for the lock lock abutment against the lock pieces 71, 81 for the operation lock. However, there is no spring for urging the lock pieces 71 and 81 for the operation lock, and biasing springs 79 and 89 for urging the lock pieces 75 and 85 for the lock lock are provided. Yes.

  A guide support member 16 integrated with the housing 11 is provided so as to guide and support the lock pieces 75 and 85 for the lock lock and the lock pieces 71 and 81 for the operation lock, respectively. The pieces 75 and 85 are provided with widened portions 78 and 88 that come into contact with the locking pieces 71 and 81 for the operation lock, and the urging springs 79 and 89 include the widened portions 78 and 88 and the lock for locking check. The pieces 75 and 85 are disposed between the guide support members 16. The lock pieces 71 and 81 for the operation lock are in a direction to be pressed against the cam plate 60 for driving the lock piece via the lock pieces 75 and 85 for lock check by the biasing springs 79 and 89. And the locking canisters 90a and 90b are urged in the locking direction.

  The second embodiment operates as follows. During normal operation, the lock pieces 71 and 81 for the lock locks 70 and 80 and the lock pieces 75 and 85 for lock lock checking work together, so that they are the same as in the first embodiment. To work. When there is a lock error, as shown in FIG. 6, the lock pieces 71 and 81 for the operation lock are engaged with the operation lock surfaces 27 a and 27 b.

  When there is a lock error, the lock lock notches 95a and 95b and the lock lock checking lock pieces 75 and 85 are displaced from the engaged positions, and the lock lock lock 75 and 85 lock lock locks 75 and 85 are engaged. The joint ends 77 and 87 come into contact with the lock notches 95a and 95b. However, the urging springs 79 and 89 of the buffer mechanism perform a buffering operation, and do not forcefully engage with the lock notches 95a and 95b. The lock pieces 71 and 81 for the operating cannula lock do not receive the urging force of the urging springs 79 and 89, but the lock piece driving rollers 74 and 84 are drawn into the engaging cam surfaces 63a and 63b to operate the cannula lock. Engages with surfaces 27a and 27b.

  As a result, the lock piece 81 for the operation lock can be forcibly engaged by the engagement cam surface 63b even if there is no gap with the operation lock surface 27b. Compared with the adhesion force, it is possible to suppress a decrease in the adhesion force of the Tongrel after completion of the conversion. Therefore, when the contact force after the end of conversion is set to be large, it is not necessary to set the contact force immediately before the end of the conversion to be larger, and a failure that cannot be converted does not occur.

  Further, since the urging springs 79 and 89 are disposed between the widened portions 78 and 88 of the lock locking check locking pieces 75 and 85 and the guide support member 16, the urging springs 79 and 89 are provided. It can be compactly housed inside the housing 11 of the turning machine 10 and can be reduced in size and weight.

It is an explanatory top view of the switch machine concerning a 1st embodiment of the present invention. It is a description front view of the turning machine which concerns on the 1st Embodiment of this invention. It is operation | movement explanatory drawing of the switch machine which concerns on the 1st Embodiment of this invention. It is operation | movement explanatory drawing in the case of the lock | fluctuation lock | rock of the switching machine based on the 1st Embodiment of this invention. It is a description top view of the turning machine which concerns on the 2nd Embodiment of this invention. It is operation | movement explanatory drawing in the case of the lock | fluctuation lock | rock of the switching machine based on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Rolling machine 16 ... Guide support member 20 ... Operation lever 25 ... Driving cam plate 27a, 27b ... Operation locking surface 28a, 28b ... Drive cam groove 29a, 29b ... Operation plate escape surface 30 ... Drive mechanism 40 ... Conversion gear 48 ... Conversion roller 50 ... Locking mechanism 60 ... Lock piece drive cam plate 63a, 63b ... Engagement cam surface 64 ... Peripheral surface 64a, 64b ... Escape surface 65a, 65b ... Release cam surface 70, 80 ... Lock piece 71, 81... Lock piece 72 for moving chain lock 72, 82... Energizing spring 76, 86... Energizing spring 79, 89. , 85 ... Lock piece for locking lock check 77, 87 ... Locking lock engaging end 78, 88 ... Widening part 90a, 90b ... Locking lock 95a, 95b ... Locking lock notch

Claims (3)

In a turning machine that is attached to a turnout on a railroad track and changes the traveling direction of the train by changing the Tongleil into a fixed position and an inverted position by means of operation,
A drive mechanism for reciprocating linearly moving the operation rod connected to the tongue rail, and a locking mechanism for locking by locking with the Tongrel.
The drive mechanism is constituted by a conversion gear that is rotationally driven by a motor and provided with a conversion roller, and a drive cam plate that is provided in the operation plate, and the drive cam plate is provided with an operation locking surface. , The conversion roller of the conversion gear engages with the drive cam plate, and the conversion gear rotates to reciprocate linearly when the conversion gear rotates.
The locking mechanism includes a lock piece drive cam plate that rotates integrally with the conversion gear, and is linearly driven by the lock piece drive cam plate via a lock piece drive roller to A lock piece that is engaged and disengaged, and a lock cane that is connected to the Tongrel and that engages and disengages the lock cane.
The lock piece is configured to be divided into a lock piece for operation lock and a lock piece for lock lock check, and the lock piece for lock lock and the lock piece for lock check are respectively the lock piece. Energized by an energizing spring in the direction of pressing against the drive cam plate,
On the cam surface of the cam plate for driving the lock piece, an engagement cam surface for engaging the lock piece for operation lock and the lock surface for operation, and an operation lock for the lock piece for operation lock. A release cam surface for releasing from the lock surface,
In the normal operation, the lock piece for the operation lock and the lock piece for the lock check are locked by the urging force of each urging spring so that the lock piece drive roller of the lock piece for the operation lock is , The locking lock surface, the engagement cam surface, the locking cam notch and the lock locking check piece are displaced from the engagement position. When the locking lock piece for operation locking is engaged with the locking surface for operation by the engagement cam surface and the lock piece driving roller, the locking piece for locking lock check is not A force switch that is configured to remain in the unlocked position without being forcibly engaged with and forcibly unlocked during the unlocking operation. In a turning machine that is attached to a turnout on a railroad track and changes the traveling direction of the train by changing the Tongleil into a fixed position and an inverted position by means of operation,
A drive mechanism for reciprocating linearly moving the operation rod connected to the tongue rail, and a locking mechanism for locking by locking with the Tongrel.
The drive mechanism is constituted by a conversion gear that is rotationally driven by a motor and provided with a conversion roller, and a drive cam plate that is provided in the operation plate, and the drive cam plate is provided with an operation locking surface. , The conversion roller of the conversion gear engages with the drive cam plate, and the conversion gear rotates to reciprocate linearly when the conversion gear rotates.
The locking mechanism includes a lock piece drive cam plate that rotates integrally with the conversion gear, and is linearly driven by the lock piece drive cam plate via a lock piece drive roller to A lock piece that is engaged and disengaged, and a lock cane that is connected to the Tongrel and that engages and disengages the lock cane.
The lock piece is configured to be divided into a lock piece for an operation lock and a lock piece for a lock lock check that abuts on the lock piece for an operation lock, and an energizing force for energizing the lock lock check piece. A biasing spring is provided, and the locking piece for the operation locking lock is biased by the biasing spring in the direction of pressing against the lock piece driving cam plate via the lock locking check piece;
On the cam surface of the lock piece driving cam plate, there are provided an engagement cam surface for engaging the operation locking padlock piece with the operation locking pad surface, and the operation locking padlock piece. And a release cam surface for releasing from the operating lock surface,
The lock piece for the operation lock and the lock piece for lock check are in normal operation, the urging force of the urging spring causes the lock piece drive roller of the lock piece for operation lock to be The locking lock surface, the engagement cam surface, and the release cam surface operate integrally so that the locking lock notch and the locking lock locking piece are displaced from the engagement position. In this case, the lock piece for the operation lock is engaged with the operation lock by the engagement cam surface and the lock piece drive roller, but the lock piece for the lock lock check is not in the lock lock notch. A tipping machine characterized by being configured to remain in the unlocked position without being forcibly engaged, and to perform a forced unlocking operation during the unlocking operation.   A guide support member integral with a housing for guiding and supporting the lock locking check piece and the operation lock lock piece is provided, and the lock lock check lock piece is provided for the operation lock. A widening portion that abuts against the lock piece is provided, and the biasing spring is disposed between the widening portion and the guide support member of the lock piece for locking lock check. The turning machine according to claim 2.

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