JP2000318610A - Railroad switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a railroad switch which can prevent the damage of the locking tops of lock pieces and the locked parts of locking rods, by maintaining the safety of the locking as a condition. SOLUTION: Lock pieces 70 and 170 are divided into base side pieces 71 and 171, and front side pieces 72 and 172. And at the second motive power transmitting path when the front side pieces 72 and 172 are engaged with the locked parts 51 and 151 of the locking rods 50 and 150, a shock absorbing means 80 is provided between the base side pieces 71 and 171, and the front side pieces 72 and 172. And when the locked parts 51 and 151 deviate from the regular positions corresponding to the front side pieces 72 and 172, and the front side pieces 72 and 172 are about to engage with the locked parts 51 and 151 of the locking rods 50 and 150, shocks received by the front side pieces 72 and 172, and the locking rods 50 and 150 each other, when the front side pieces 72 and 172 are abutted on the locked parts 51 and 151 of the locking rods 50 and 150, are absorbed by the chock absorbing means 80, so as to prevent the mutual damages of the front side pieces 72 and 172, and the locking rods 50 and 150.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching machine that converts a tong rail between a localization and an inversion in the vicinity of a turnout of a track.

[0002]

2. Description of the Related Art Conventionally, as this type of a point machine, for example, when a motor is started, a conversion gear rotates, a conversion roller provided on the conversion gear rotates, and a conversion roller fits into its cam groove. The corresponding operation can is activated, and the tongue rail is changed to the normal position or the inverted position, and the locking can is linked to the tongue rail.

[0003] On the other hand, a pair of lock pieces of a lock mechanism are respectively linked with the conversion gear, and lock pieces formed at the tips of the pair of lock pieces are notched grooves of the main lock pin and the auxiliary lock pin. In general, each lock piece engages with each notch groove, and the tongue rail is irreversibly restrained in a fixed or inverted position via the main chain lock and the auxiliary chain lock, respectively. is there.

[0004] In order to improve the safety of the lock, such a turning machine is designed to reduce the width of each of the cutout grooves of the main lock and the auxiliary lock as much as possible, and to lock the lock piece of the lock piece. It is desirable to engage the locked portion which is a notched groove with as little play as possible.

[0005]

However, in the above conventional switching machine, the width of each of the notch grooves of the main chain lock and the auxiliary chain lock is set to be narrow, and the main chain lock and the auxiliary chain lock are set. If the locked portion (notched groove) of the main lock or the secondary lock is displaced from the regular position corresponding to the lock piece of the lock piece due to an error in the interlocking operation of the lock, the lock piece is locked. If the lock piece is forcibly engaged with the locked part (notch groove), the lock piece of the lock piece may damage the locked part (notch groove) of the main or secondary lock can. is there. If the groove width of the locked part (notch groove) is increased so as not to damage the locked part (notch groove), the error of the interlocking operation of the main lock or the secondary lock will be out of the allowable range. Even if the lock piece is locked, the lock piece of the lock piece can be engaged with the locked part (notch groove) of the main lock or the secondary lock can, which may cause the lock to be out of order. There has been a problem that it is not possible to provide sufficient play between the lock portion and the notched groove.

The present invention has been made in view of the above-mentioned problems of the prior art, and is based on the premise that the safety of the lock is maintained, and the lock piece of the lock piece and the closed position of the lock can. It is an object of the present invention to provide a point machine capable of preventing damage to a lock.

[0007]

The gist of the present invention to achieve the above object lies in the following inventions. [1] A switching machine that converts a tong rail between a localization and an inversion in the vicinity of a turnout of a track, and a first power transmission path (3)
0), the second power transmission path (40) and the lock can (5).
0, 150), the first power transmission path (30) is connected to a tongue rail, and the second power transmission path (40) has a locking mechanism. (50, 150) is a locked part (51, 151).
In conjunction with the tongue rail, the lock mechanism comprises a lock piece (70, 170) and a shock absorbing means (8).
0), the lock piece (70, 170) includes a base piece (71, 171) located on the base side of the second power transmission path (40), and the second power transmission path (40).
A front piece (72, 72) which is located at the front side of the lock can (50, 150) and which is engaged with and disengaged from the locked part (51, 151) of the lock can (50, 150).
172) and the impact absorbing means (8
0) is the second power transmission path (40) when the front piece (72, 172) is engaged with the locked part (51, 151) of the lock can (50, 150). A rolling machine, which is arranged between the position of the front piece (72, 172) and the position of the base piece (71, 171).

[2] A switching machine for converting the tong rail between the localization and the inversion in the vicinity of the line branching device, comprising a first power transmission path (30), a second power transmission path (40), and
In a device having a lock can (50, 150), the first power transmission path (30) is connected to a tong rail, the second power transmission path (40) has a lock mechanism, The lock can (50, 150) is a locked part (5
1,151) and interlocking with the tongue rail, the lock mechanism has a lock piece (70, 170) and a shock absorbing means (80), and the lock piece (70, 17).
0) is a base piece (71, 171) located on the base side of the second power transmission path (40), and is located on the tip side of the second power transmission path (40), and (50,1
50) is divided into a front piece (72, 172) which is engaged with and disengaged from the locked part (51, 151). The shock absorbing means (80) includes a relay member (81, 181) and a coil. A spring (84, 184);
1, 181) is fixed to one of the base piece (71, 171) or the front piece (72, 172), while the base piece (71, 171) or the front piece ( 72, 172) so as to be movable on the other piece of the coil spring (84, 184).
In the second power transmission path (40) when the front piece (72, 172) is engaged with the locked part (51, 151) of the lock can (50, 150), Rolling member, which is disposed between the other piece and the relay member, and is urged in a direction to maintain a relative positional relationship between the other piece and the relay member (81, 181). Machine.

[3] A turning machine for converting the tong rail between the localization and the inversion in the vicinity of the line branching device, comprising a first power transmission path (30), a second power transmission path (40), and
In a device having a lock can (50, 150), the first power transmission path (30) is connected to a tong rail, the second power transmission path (40) has a lock mechanism, The lock can (50, 150) is a locked part (5
1,151) and interlocking with the tongue rail, the lock mechanism has a lock piece (70, 170) and a shock absorbing means (80), and the lock piece (70, 17).
0) is a base piece (71, 171) located on the base side of the second power transmission path (40), and is located on the tip side of the second power transmission path (40), and (50,1
50) is divided into a front piece (72, 172) engaged and disengaged with the locked portion (51, 151), and the shock absorbing means (80) is provided in the second driving force transmission path. A rolling machine characterized in that it is disposed between the position of a front piece (72, 172) and the position of the base piece (71, 171).

[4] The first power transmission path (30)
It has an operation can (31), the operation can (31) is connected to the tongue rail, and the locking mechanism includes a lock piece (70, 170) and a lock plate (90, 1).
90) and a shock absorbing means (80), and the lock plate (90, 190) is provided with a step portion (91, 191).
And a lower plate (92, 192) is provided on one of both sides of the stepped portion (91, 191), and an operation canister (31) is provided above the lower plate (92, 192).
While forming a housing space for the
An upper plate (93, 193) is provided on the other of both sides of 1), and a housing space for the shock absorbing means (80) is formed below the upper plate (93, 193) [ The switching machine according to [1], [2] or [3].

[5] The first power transmission path (30) and the second power transmission path (40) are connected to a conversion roller (26).
And the conversion roller (26) is configured to be able to rotate around by a conversion gear (20), and the operation can (31) includes the lower plate (92, 192) and the conversion gear (20). The conversion roller (26) is disposed between the operation canister (3).
The cam groove formed in the lock plate (90, 190) is fitted into the cam groove formed in the lower plate (92, 192) of the lock plate (90, 190) by fitting through the cam groove formed in 1) [4].
The point machine described in.

Next, the operation of the invention described in each of the above items will be described. According to one configuration of the present invention, the lock piece (70, 170) is divided into a base piece (71, 171) and a front piece (72, 172), and the front piece (7,
2,172) engages with the locked part (51,151) of the lock can (50,150) in the second power transmission path (40) and the base piece (71,171) and the front side. Shock absorbing means (80) between the pieces (72, 172)
Is arranged.

When the switch operates, power is transmitted to the tongue rail via the first power transmission path (30), and the tongue rail is converted into a normal position and a reverse position. When the tong rail is converted between stereotactic and inverted, the lock can (50, 15)
0) moves to a predetermined position in conjunction with the tongue rail.

Further, when the switch is operated, the second power transmission when the front piece (72, 172) is engaged with the locked part (51, 151) of the lock can (50, 150). In the path (40), the power is supplied by the lock pieces (70, 17).
0) is transmitted to the distal end piece via the shock absorbing means (80) from the proximal end piece. That is, the distal piece works integrally with the proximal piece via the shock absorbing means (80).

The error of the interlocking operation of the lock can (50, 150) is within an allowable range, and the locked part (51, 151) of the lock can (50, 150) is a regular one corresponding to the tip piece. When in position, the tip piece is a lock can (50, 1
50) smoothly engages with the locked part (51, 151) and does not come into contact with the locked part (51, 151).
The tip piece is the locked part (5, 5) of the lock can (50, 150).
1, 151) smoothly, so that the tip piece does not receive a large reaction force from the locked part (51, 151).
The shock absorbing means (80) does not receive a large shock.

On the other hand, the error of the interlocking operation of the lock cans (50, 150) falls outside the allowable range, and
When the locked part (51, 151) of (0) is displaced from the regular position corresponding to the tip piece, the tip piece is engaged with the locked part (51, 151) of the lock can (50, 150). When trying to match, the tip piece is a lock can (50, 150)
, While the tip piece receives a reaction force from the tip piece.

At this time, the reaction force from the locked part (51, 151) of the lock can (50, 150) is absorbed by the shock absorbing means (80), so that the lock can (50, 150) is absorbed.
50) The locked part (51, 151) of the front piece (7
2,172), and the front piece (72,172) is secured to the locked part (51,1).
The front piece (72, 172) and the locked part (51, 151) of the lock can (50, 150) are not mutually damaged without receiving a large reaction force from the part (51).

According to another configuration of the present invention, the shock absorbing means (80) is constituted by the relay members (81, 181) and the coil springs (84, 184).

That is, when the switch is operated, the second power transmission when the front piece (72, 172) is engaged with the locked part (51, 151) of the lock can (50, 150). In the path (40), when the base piece operates by receiving power, the relay member (81, 181) moves relative to the base piece or the tip piece, and the coil spring (84, 1).
84) tries to maintain the relative positional relationship between the relay member (81, 181) and the base piece or the tip piece, so that the tip piece follows the movement of the base piece.

The error of the interlocking operation of the lock can (50, 150) is within an allowable range, and the locked part (51, 151) of the lock can (50, 150) is a regular one corresponding to the tip piece. When in the position, the distal piece follows the proximal piece and is locked (51, 15) of the lock can (50, 150).
1) smoothly engages, and does not come into contact with the locked part (51, 151). The tip piece is a lock can (50, 1
50) smoothly engages with the locked part (51, 151), so that the tip piece does not receive a large reaction force from the locked part (51, 151), and the tip piece is connected to the relay member (81, 181). Since the relative positional relationship with the end piece or the tip piece is substantially maintained, the coil spring (84, 184) does not bend significantly.

On the other hand, the error of the interlocking operation of the lock cans (50, 150) is out of the allowable range, and
When the locked part (51, 151) of (0) is displaced from the regular position corresponding to the tip piece, the tip piece is engaged with the locked part (51, 151) of the lock can (50, 150). When trying to match, the tip piece is a lock can (50, 150)
Abuts the locked portion (51, 151) of the relay member (8, 15).
The coil springs (84, 184) bend in an attempt to maintain the relative positional relationship between the base piece and the distal end piece.

At this time, the reaction force from the locked part (51, 151) of the lock can (50, 150) is generated by the coil spring (8).
4, 184) is absorbed by bending, so that the locked part (51, 151) of the lock can (50, 150) does not receive a great impact from the front piece (72, 172). Further, the front piece (72, 172) does not receive a large reaction force from the locked part (51, 151),
Tip piece (72, 172) and lock can (50,
Mutual damage to the locked part (51, 151) of the step 150) is prevented.

Further, according to another configuration of the present invention, the lock piece (70, 170) is connected to the base piece (71, 17).
1) and the front piece (72, 172), and in the second power transmission path (40), the base piece (71, 17).
The shock absorbing means (80) is arranged between 1) and the front piece (72, 172).

When the switch is operated, power is supplied from the base piece of the lock piece (70, 170) to the shock absorbing means (8).
0) to the tip piece. That is, the distal piece works integrally with the proximal piece via the shock absorbing means (80).

The error of the interlocking operation of the lock cans (50, 150) is out of the allowable range, and the locked portions (51, 151) of the lock cans (50, 150) are in the proper positions corresponding to the tip pieces. When it is out of position, the tip piece is locked with a lock can (50,
When trying to engage with the locked part (51, 151) of the locking device (150), the tip piece contacts the locked part (51, 151) of the locking can (50, 150), while the tip piece is in contact with the locking piece (51, 151). Received a reaction force from the chain, but a lock can (50, 150)
The reaction force from the locked part (51, 151) is absorbed by the shock absorbing means (80), so that the front piece (7
2,172) and the locked part (51,151) of the lock can (50,150) are prevented from being mutually damaged.

Further, in a state where the front piece (72, 172) is firmly engaged with the locked part (51, 151) of the lock can (50, 150), the front piece (72, 172).
2) replace the locked part (51, 1) of the lock can (50, 150).
When the point machine is operated to remove from the lock piece (51, 151) of the lock can (50, 150), only the base piece does not come off. Operates, the relative positional relationship between the relay member (81, 181) and the base end piece or the distal end piece changes, and the coil spring (8) tries to maintain the relative positional relationship.
4, 184) bends.

The bending of the coil springs (84, 184) causes the front piece (72, 172) to lock the lock can (5).
0, 150) remains engaged with the locked part (51, 151) and is not forcibly removed.
2,172) and the locked parts (51,151) of the lock cans (50,150) do not receive a large frictional force from each other, and can be prevented from being mutually worn.

Further, according to another configuration of the present invention, the movable can (31) is placed above one lower plate (92, 192) on both sides of the step (91, 191) of the lock plate (90, 190). ), While the other upper plate (93, 191) on both sides of the step (91, 191) is formed.
An accommodation space for the shock absorbing means (80) is formed below 193).

As a result, the operation canister (31) and the shock absorbing means (80) are accommodated in the respective accommodation spaces, and the operation canister (3) is provided.
1) and the like are not bulky in the vertical direction, and the overall thickness of the point machine can be reduced.

Further, according to another configuration of the present invention, the operating can (3) is provided in the gap between the conversion gear (20) and the lower plate (92, 192) of the lock plate (90, 190).
1) so that the conversion roller (26) is engaged with the cam groove of the operation can (31) and the lower plate (92, 1).
92) so as to penetrate the cam groove.

That is, when the switching machine starts and the conversion gear (20) rotates, the conversion roller (26) rotates,
The conversion roller (26) operates the can (31) and the lower plate (92, 19) of the lock plate (90, 190).
Since it is fitted in each cam groove of 2), the operation can (31) can be performed with a simple configuration using one conversion roller (26).
In addition, the lock plate (90, 190) can perform a predetermined operation.

Further, the conversion gear (20) and the operation can (3)
1) Since the lower plate (92, 192) of the lock plate (90, 190) is arranged in a three-ply state, the overall thickness of the switch can be reduced.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an exploded perspective view of the point machine, FIG. 2 is a front view of the point machine, FIG. 3 is a plan view of the point machine, and FIG. FIG.

As shown in FIG. 1 to FIG.
Numeral 0 is provided beside a turnout (not shown) of the line. The switch is a tongue rail on the main rail (both not shown)
Is provided so as to be convertible.

An operating can 31 that is connected to the tongue rail side to perform a changing operation is slidably supported on the turning case 11 of the turning machine main body 10. Pointing machine body 1
An installation item (not shown) is disposed outside the unit 0, and the operation can 31 is connected to the tong rail via the installation item.

Similarly, a main lock case 50 and a sub lock case 150 are supported on the switch case 11 so as to be able to reciprocate at a predetermined stroke. Main chain lock can 5
0 and the secondary lock canister 150 are respectively disposed so as to be parallel to the operation can 31 and restrain the tong rail.

The main body 10 of the switch is provided with a case 11 for the switch.
An electric motor M is provided at one end of the inside, and the driving force of the electric motor M is transmitted to the drive mechanism 12.
The electric motor M is operated by a single-phase power supply,
The drive mechanism 12 reduces the rotational speed of the output shaft M1 of the electric motor M, and includes the following gear system.

A bevel pinion 13 is fixed to the output shaft M1 of the electric motor M, and a bevel gear 14 meshes with the bevel pinion 13. A pinion 14a having the rotation axis of the bevel gear 14 coaxial is meshed. Pinion 1
4a is meshed with an intermediate large gear 15;
5 is an intermediate small gear 15b having the same intermediate gear shaft 15a
Are meshed with the conversion gear 20.

A conversion roller 26 is supported by the conversion gear 20, and the conversion roller 26 rotates when the conversion gear 20 rotates. The conversion roller 26 is divided into a first power transmission path 30 and a second power transmission path 40.

The operation can 31 constituting the first power transmission path 30 is disposed below the conversion gear 20. A cam groove member 36 is formed integrally with the first power transmission path 30. An elongated cam groove is formed in the cam groove member 36, and the conversion roller 26 is fitted movably along the cam groove of the cam groove member 36. The conversion roller 26 extends through the cam groove of the cam groove member 36 to lower lock plates 90 and 190 described below.

The lock mechanism 60 constituting the second power transmission path 40 restrains the tongue rail in a fixed or inverted position via the main lock 50 and the auxiliary lock 150. The main chain lock can 50 is reciprocally movable with a predetermined stroke in conjunction with the tongue rail when the tongue rail is switched between the normal position and the inverted position.

The lock mechanism 60 includes a pair of lock pieces 7.
0, 170, shock absorbing means 80, and a pair of lock plates 90, 190. Lock plate 90,1
Numeral 90 is a flat plate having steps 91 and 191 respectively, and one of the steps 91 and 191 is provided with lower plates 92 and 192 which are planes lower by one step, and the other of the steps 91 and 191 is stepped by one step. Upper plates 93 and 193 which are high planes are provided.

The lower plate 92, 1 which is a lower plane.
A housing space is formed between the transfer gear 92 and the conversion gear 20 located above the housing 92, and the cam groove member 36 of the operation can 31 is interposed in the housing space. Lower plate 92, 1
The 92 has cam grooves 95 and 195 formed therein. The conversion roller 26 fitted in the cam groove of the cam groove member 36 is movably fitted along the cam grooves 95 and 195.

The upper plate 93, 1 which is a one-step higher plane
An accommodation space is formed between 93 and the bottom of the switch case 11 located therebelow, and the shock absorbing means 80 is accommodated in the accommodation space.

Each of the pair of lock pieces 70 and 170 is divided into base pieces 71 and 171 and front pieces 72 and 172, respectively. The base pieces 71 and 171 are formed continuously and integrally with the upper plates 93 and 193. The front side pieces 72 and 172 are connected to the main chain lock can 50.
And it is extended toward the auxiliary lock can 150, and each lock piece 75,175 is formed in the front-end | tip part.

On the lower surface of the main lock can 50 and on the upper surface of the auxiliary lock can 150, each lock portion 51, 1 which is a notch of each lock.
51 is recessed. The lock pieces 75 and 175 of the front pieces 72 and 172 are disengaged from the locked parts 51 and 151 of the main lock 50 and the sub-lock 150 to lock the tong rail in the locked state or Unlocked.

The shock absorbing means 80 includes the relay members 81 and 18
1, stopper blocks 83, 183, coil springs 84,
184 and guide screws 85 and 185.

The stopper blocks 83, 183 are screwed to the base pieces 71, 171. Relay member 8
Reference numerals 1 and 181 are provided along the lower surfaces of the base pieces 71 and 171, and one ends of the relay members 81 and 181 are extended along the lower surfaces of the front pieces 72 and 172. Fitting recesses 73, 173 are provided on the lower surfaces of the front pieces 72, 172.
Is recessed. In correspondence with the fitting concave portions 73 and 173,
Fitting projections 82, 182 are provided at one ends of the relay members 81, 181.
Are formed, and the fitting projections 82 and 182 are fitted into the fitting recesses 73 and 1.
73 and screwed to the base pieces 71 and 171. The other ends of the relay members 81 and 181 are bent downward along the stopper blocks 83 and 183.

Guide screws 85 and 185 extend along the lower surfaces of the relay members 81 and 181, and one ends of the guide screws 85 and 185 pass through through holes provided in the other end portions of the relay members 81 and 181. And the stopper block 8
3,183 are fastened by nuts. The coil springs 84 and 184 are wound around the guide screws 85 and 185 while being compressed between the heads of the guide screws 85 and 185 and the other ends of the relay members 81 and 181.

By the restoring force of the coil springs 84 and 184,
Via the relay members 81,181, the front pieces 72,17
2 is urged in the direction of the base pieces 71, 171. If a force (an impact force to be described later) that opposes the restoring force of the coil springs 84, 184 does not occur, the front pieces 72, 17
2 is in contact with the base pieces 71 and 171. That is, the coil springs 84 and 184 are
2 is urged in a direction to maintain the state (relative positional relationship) in contact with the base pieces 71 and 171.

With such a structure of the shock absorbing means 80, the power (pushing force:
The power for setting the tong rail in the unlocked state) is directly transmitted to the front piece 72, not through the shock absorbing means 80.
172, the power from the base pieces 71, 171 (retraction force: power when the tong rail is locked) is transmitted via the shock absorbing means 80 to the front pieces 72, 1.
72.

Even when the tongue rail is in the unlocked state, the power (push-out force) from the base pieces 71 and 171 is transmitted through the shock absorbing means 80 to the front pieces 72 and 1.
72.

Next, the operation of the above embodiment will be described.
When the tongue rail is in the locked state, for example, the lock piece 75 of one lock piece 70 is engaged with the locked part 51 of the main lock 50, and the main lock 50 is locked. Have been. On the other hand, the lock piece 17 of the other lock piece 170
5 is disengaged from the locked part 151 of the secondary lock can 150, and the secondary lock 150 is unlocked.

When the electric motor M is started for the conversion operation, the bevel pinion 13 of the output shaft M1 to the bevel gear 14
~ Pinion 14a ~ Intermediate large gear 15 ~ Intermediate small gear 15b
And the conversion gear 20 meshing with the intermediate small gear 15b is driven to rotate clockwise in FIG.

When the conversion gear 20 is driven to rotate clockwise, the conversion roller 26 moves along the cam groove 95 of the lock plate 90. Thereby, one lock piece 70
The base piece 71 of FIG. 4 moves to the right in FIG. 4 together with the lock plate 90 to push out the front piece 72, and the lock piece 75 of the front piece 72 moves to the locked portion 5 of the main lock can 50.
Then, the lock can 50 is unlocked. Further, the conversion roller 26 moves along the cam groove of the cam groove member 36.
Thereby, the operation can 31 is displaced downward in FIG.

Further, when the conversion gear 20 is rotated clockwise and the operation rod 31 is moved to the lowest position in FIG. 4, the tongue rail is inverted to the opposite position via the conversion locking device (not shown). The auxiliary lock can 150 is linked to the tongue rail. When the tongue rail conversion is completed, the conversion roller 26 moves along the cam groove 195 of the lock plate 190, and the base piece 171 of the other lock piece 170 moves to the left in FIG. The front piece 172 is moved toward the base piece 171 (to the left in FIG. 4) by the urging force of the coil spring 184, and the lock piece 17 of the front piece 172 is moved.
5 is engaged with the locked part 151 of the auxiliary lock can 150 and is locked.

At this time, if the operation error of the secondary lock canister 150 is large and the locked portion 151 of the secondary lock can 150 does not move to the regular position corresponding to the lock piece 175 of the front piece 172, The lock piece 175 of the front piece 172 comes into contact with the peripheral edge of the locked part 151 of the secondary lock can 150, and the front piece 172 receives the reaction force from the secondary lock can 150.

The reaction force from the auxiliary lock can 150 is absorbed by the compression of the coil spring 184, and the
0 does not receive a large impact from the front piece 172, and the front piece 172 does not receive a large reaction force from the lock piece 151, and the front piece 172 and the chain Mutual damage of the locked portion 151 of the lock can 150 can be prevented.

The operating state of the lock pieces 70 and 170 during the conversion operation is detected by a sensor unit not shown. The movements of the lock pieces 70 and 170 indicate the operating states of the operation can 31, the main lock 50 and the auxiliary lock 150, and the sensor section includes the operation can 31, the main lock 50 and the auxiliary lock 50. The operation state of 150 is transmitted to a point control unit (not shown).

When the conversion gear 20 rotates counterclockwise in FIG. 4, the operating rod 31 is displaced upward in FIG. 4, the other lock piece 170 is displaced, and the lock piece of the other lock piece 170 is locked. 175 is a secondary lock can 150
When the tongue rail is shifted to the normal position when the operation can 31 is displaced to the uppermost position in FIG. 4 and one of the lock pieces 70 starts to be displaced, the lock piece 75 of the front piece 72 is displaced. Engages with the locked part 51 of the main lock can 50.

The operation error of the main lock can 50 is large, and the locked portion 51 of the main lock can 50 is locked by the lock piece 7 of the front piece 72.
5, the lock piece 75 of the front piece 72 comes into contact with the periphery of the locked part 51 of the main lock 50, and the front piece 72 moves to the main lock 50. To receive the reaction force from

The reaction force from the main chain lock can 50 is also absorbed by the compression of the coil spring 84 and the front piece 7
2 and the locked portion 51 of the lock can 50 can be prevented from being mutually damaged. That is, the front piece 72, 1
Thus, the lock pieces 70 and 170 and the lock cans 50 and 150 can be prevented from being mutually damaged.

In the above embodiment, the relay members 81, 181 are fixed to the front pieces 72, 172, and the relay members 81, 181 are biased by the coil springs 84, 184.
181 (tip pieces 72, 172) and base piece 71,
171 is maintained in a relative positional relationship (contact state), but the invention is not limited to this, and may be reversed. That is, the relay members 81 and 181 are connected to the base piece 7.
1 and 171, and the relay members 81 and 181 (the base pieces 71 and 17) are urged by the coil springs 84 and 184.
You may make it maintain 1) and the front side piece 72,172 in a relative positional relationship.

Further, the base pieces 71, 171 and the front pieces 72, 172 are maintained in a relative positional relationship by the urging force of the coil springs 84, 184 without interposing the relay members 81, 181. You may.

[0065]

As described above, according to one aspect of the present invention, the lock piece is divided into the base piece and the front piece, and the front piece is engaged with the locked part of the lock can. In the second power transmission path in the case of interlocking, the shock absorbing means is arranged between the base piece and the front piece, so that the error of the interlocking operation of the lock can is out of the allowable range, and the lock can is covered. When the locking part is displaced from the regular position corresponding to the tip piece, when the tip piece is to be engaged with the locking part of the locking can, the tip piece is attached to the locking part of the locking can. In contact, the front piece receives a reaction force from the locked part of the lock can, the reaction force from the locked part of the lock can is absorbed by the shock absorbing means, and the locked piece of the lock can is absorbed. Part does not receive a large impact from the front piece, and the front piece receives a large reaction force from the locked part. It can be without, the front side piece and to prevent mutual damage of the locking portion of the locking cans.

Further, according to another configuration of the present invention, since the shock absorbing means is constituted by the relay member and the coil spring, the error of the interlocking operation of the lock can is out of the allowable range, and the lock can is covered. When the locking part is displaced from the regular position corresponding to the tip piece, when the tip piece is to be engaged with the locking part of the locking can, the tip piece is attached to the locking part of the locking can. The coil spring flexes and is absorbed by the flexure of the coil spring in an attempt to maintain the relative positional relationship by changing the relative positional relationship between the relay member and the base end piece or the distal end piece. The locked part of the lock can is not subjected to a large impact from the front piece, and the front piece is not subjected to a large reaction force from the locked part. Mutual damage of the locking parts is prevented.

Further, according to another configuration of the present invention, the lock piece is divided into a base piece and a front piece, and the shock absorption between the base piece and the front piece in the second power transmission path. In this case, when the error of the interlocking operation of the lock can is out of the allowable range and the locked part of the lock can is displaced from the proper position corresponding to the tip piece, the tip piece is locked. When the tip piece comes into contact with the lock portion of the lock can, the tip piece receives a reaction force from the tip piece when trying to engage with the lock portion of the lock can. The reaction force is absorbed by the shock absorbing means, and mutual damage of the front piece and the locked part of the lock can is prevented. Further, when the leading piece is operated to remove the leading piece from the locked part of the lock can while the leading piece is firmly engaged with the locked part of the lock can, If only the base piece moves without the piece coming off the locked part of the lock can, the relative positional relationship between the relay member and the base piece or the distal piece changes, and the relative positional relationship changes. When the coil spring is bent in an attempt to maintain it, the front piece remains engaged with the locked portion of the lock can by the bending of the coil spring. The locked portions of the lock can do not receive a large frictional force from each other, and can be prevented from being mutually worn.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a switch according to an embodiment of the present invention.

FIG. 2 is a front view of the switch according to the embodiment of the present invention.

FIG. 3 is a plan view of the switch according to the embodiment of the present invention.

FIG. 4 is a plan view showing the inside of the switch according to the embodiment of the present invention.

[Explanation of symbols]

 M ... Electric motor 11 ... Pointer case 12 ... Driving mechanism 13 ... Bell pinion 14 ... Bevel gear 14a ... Pinion 15 ... Intermediate large gear 15a ... Intermediate gear shaft 15b ... Intermediate small gear 20 ... Conversion gear 26 ... Conversion roller 30 .. 1st power transmission path 31... Operating can 36... Cam groove member 40. 2nd power transmission path 50... Main chain lock can 51 51... Locked part 60... Lock mechanism 70 and 170... Lock pieces 71 and 171. Side pieces 72, 172 Front side pieces 73, 173 Fitting recesses 75, 175 Lock pieces 80 Shock absorbing means 81, 181 Relay members 82, 182 Fitting projections 83, 183 Stopper blocks 84, 184 ... Coil springs 85,185 ... Guide screws 90,190 ... Lock plates 91,191 ... Steps 92,192 ... Lower plates 93,193 Upper plate 95,195 ... cam groove 150 ... sub locking cans 151 ... Hikusarijo unit

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] January 28, 2000 (2000.1.2
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

The gist of the present invention to achieve the above object lies in the following inventions. [1] A switching machine that converts a tong rail between a localization and an inversion in the vicinity of a turnout of a track, and a first power transmission path (3)
0), the second power transmission path (40) and the lock can (5).
0, 150), the first power transmission path (30) is connected to a tongue rail, and the second power transmission path (40) has a locking mechanism. (50, 150) is a locked part (51, 151).
In conjunction with the tongue rail, the lock mechanism comprises a lock piece (70, 170) and a shock absorbing means (8).
0), the lock piece (70, 170) includes a base piece (71, 171) located on the base side of the second power transmission path (40), and the second power transmission path (40).
Of the front lock piece (72,
172) and the impact absorbing means (8
0), the front piece (72, 172) and the base piece (71, 172) in the second power transmission path (40).
171), the first power transmission path (30) has an operating can (31), and the operating can (31) is connected to the tong rail, and the chain The lock mechanism has a lock piece (70, 170), a lock plate (90, 190), and an impact absorbing means (80), and the lock plate (90, 190) has a step portion (91, 191). And the stepped portion (9)
1, 191) on one of the two sides of the lower plate (92, 19).
2) to form an accommodating space for the operating rod (31) above the lower plate (92, 192), and an upper plate (93, 193) on the other side on both sides of the step portion (91, 191). ), And the upper plate (93, 1) is provided.
93. A turning machine characterized by forming a housing space for the shock absorbing means (80) below the 93).

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

[2] A switching machine for converting the tong rail between the localization and the inversion in the vicinity of the line branching device, comprising a first power transmission path (30), a second power transmission path (40), and
In a device having a lock can (50, 150), the first power transmission path (30) is connected to a tong rail, the second power transmission path (40) has a lock mechanism, The lock can (50, 150) is a locked part (5
1,151) and interlocking with the tongue rail, the lock mechanism has a lock piece (70, 170) and a shock absorbing means (80), and the lock piece (70, 17).
0) is a base piece (71, 171) located on the base side of the second power transmission path (40), and is located on the tip side of the second power transmission path (40), and (50,1
50) is divided into a front piece (72, 172) which is engaged with and disengaged from the locked part (51, 151). The shock absorbing means (80) includes a relay member (81, 181) and a coil. A spring (84, 184);
1, 181) is fixed to one of the base piece (71, 171) or the front piece (72, 172), while the base piece (71, 171) or the front piece ( 72, 172) so as to be movable on the other piece of the coil spring (84, 184).
Is disposed between the other piece and the relay member in the second power transmission path (40), and maintains a relative positional relationship between the other piece and the relay member (81, 181). The first power transmission path (30) has an operating can (31), and the operating can (31) is connected to the tong rail, and the lock mechanism Has a lock piece (70, 170), a lock plate (90, 190), and an impact absorbing means (80), and the lock plate (90, 190) forms a step portion (91, 191). And the step (9)
1, 191) on one of the two sides of the lower plate (92, 19).
2) to form an accommodating space for the operating rod (31) above the lower plate (92, 192), and an upper plate (93, 193) on the other side on both sides of the step portion (91, 191). ), And the upper plate (93, 1) is provided.
93. A turning machine characterized by forming a housing space for the shock absorbing means (80) below the 93).

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

[3] A turning machine for converting the tong rail between the localization and the inversion in the vicinity of the line branching device, comprising a first power transmission path (30), a second power transmission path (40), and
In a device having a lock can (50, 150), the first power transmission path (30) is connected to a tong rail, the second power transmission path (40) has a lock mechanism, The lock can (50, 150) is a locked part (5
1,151) and interlocking with the tongue rail, the lock mechanism has a lock piece (70, 170) and a shock absorbing means (80), and the lock piece (70, 17).
0) is a base piece (71, 171) located on the base side of the second power transmission path (40), and is located on the tip side of the second power transmission path (40), and (50,1
50) and a front piece (72, 172) engaged with and disengaged from the locked portion (51, 151), and the shock absorbing means (80) is provided in the second power transmission path. Side piece (72, 172) and said base piece (71, 172)
171), the first power transmission path (30) has an operating can (31), and the operating can (31) is connected to the tong rail, and the chain The lock mechanism has a lock piece (70, 170), a lock plate (90, 190), and an impact absorbing means (80), and the lock plate (90, 190) has a step portion (91, 191). And the stepped portion (9)
1, 191) on one of the two sides of the lower plate (92, 19).
2) to form an accommodating space for the operating rod (31) above the lower plate (92, 192), and an upper plate (93, 193) on the other side on both sides of the step portion (91, 191). ), And the upper plate (93, 1) is provided.
93. A turning machine characterized by forming a housing space for the shock absorbing means (80) below the 93).

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

[4] The first power transmission path (30) and the second power transmission path (40) are connected to a conversion roller (26).
And the conversion roller (26) is configured to be able to rotate around by a conversion gear (20), and the operation can (31) includes the lower plate (92, 192) and the conversion gear (20). The conversion roller (26) is disposed between the operation canister (3).
The cam groove formed in the lock plate (90, 190) is fitted into the cam groove formed in the lower plate (92, 192) of the lock plate (90, 190) by fitting the cam groove formed in 1). The point machine according to [2] or [3].

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Deleted

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction contents]

Further, when the switch is operated, the second power transmission when the front piece (72, 172) is engaged with the locked part (51, 151) of the lock can (50, 150). In the path (40), the power is supplied by the lock pieces (70, 17).
0) from the base piece (71, 171) via the shock absorbing means (80) to the front piece (72, 172). That is, the front piece (72, 172) operates integrally with the base piece (71, 171) via the shock absorbing means (80).

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

The error of the interlocking operation of the lock cans (50, 150) is within an allowable range, and the locked parts (51, 151) of the lock cans (50, 150) are not connected to the front pieces (72, 17).
When in the proper position corresponding to 2), the front piece (72, 172) smoothly engages with the locked part (51, 151) of the lock can (50, 150), and Department (5
1,151). Tip piece (7
2,172) smoothly engages with the locked part (51,151) of the lock can (50,150), so that the front piece (72,172) is separated from the locked part (51,151). And the shock absorbing means (80) does not receive a large shock.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction contents]

On the other hand, the error of the interlocking operation of the lock cans (50, 150) falls outside the allowable range, and
The locked part (51, 151) of the front side piece (72,
172), when the front piece (72, 172) is engaged with the locked part (51, 151) of the lock can (50, 150), The pieces (72, 172) abut against the to-be-locked portions (51, 151) of the locking cans (50, 150), while the front pieces (72, 172) are reacted by the front pieces (72, 172). Receive.

[Procedure amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction contents]

That is, when the switch is operated, the second power transmission when the front piece (72, 172) is engaged with the locked part (51, 151) of the lock can (50, 150). In the path (40), the base piece (7
1,171) operates, the relay member (81,181)
Is the base piece (71, 171) or the front piece (7
2, 172) and coil springs (84, 18).
4) is the relay member (81, 181) and the base piece (7).
1, 171) or the front piece (72, 172), the front piece (72, 172) follows the movement of the base piece (71, 171).

[Procedure amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0020

[Correction method] Change

[Correction contents]

The error of the interlocking operation of the lock cans (50, 150) is within an allowable range, and the locked portions (51, 151) of the lock cans (50, 150) are not connected to the front pieces (72, 17).
When the front piece (72, 172) is at the regular position corresponding to (2), the front piece (72, 172) follows the base piece (71, 171), and the locked part (51) of the lock can (50, 150). , 1
51) smoothly engages with the locked part (51, 151).
Never abut. The front piece (72, 172) is the locked part (51, 151) of the lock can (50, 150).
To the front piece (72, 17)
2) does not receive a large reaction force from the locked part (51, 151), and the relay member (81, 181) and the base piece (71, 151).
171) or the front piece (72, 172), the relative positional relationship is substantially maintained, so that the coil spring (8
4,184) does not bend significantly.

[Procedure amendment 12]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction contents]

On the other hand, the error of the interlocking operation of the lock cans (50, 150) is out of the allowable range, and
The locked part (51, 151) of the front side piece (72,
172), when the front piece (72, 172) is engaged with the locked part (51, 151) of the lock can (50, 150), The piece (72, 172) abuts the locked part (51, 151) of the lock can (50, 150), and the relay member (81, 172).
181) and the relative position of the base piece (71, 171) or the front piece (72, 172) is changed, and the coil springs (84, 184) are moved to maintain the relative position. Bend.

[Procedure amendment 13]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction contents]

When the switch is operated, power is supplied from the base pieces (71, 171) of the lock pieces (70, 170) via the shock absorbing means (80) to the front pieces (72, 17).
It is transmitted to 2). That is, the front piece (72, 172)
Are connected to the base piece (71, 1) via the shock absorbing means (80).
71) and operates integrally.

[Procedure amendment 14]

[Document name to be amended] Statement

[Correction target item name] 0025

[Correction method] Change

[Correction contents]

The error of the interlocking operation of the lock can (50, 150) is out of the allowable range, and the locked part (51, 151) of the lock can (50, 150) is moved to the front piece (72, 172).
When the front piece (72, 172) is to be engaged with the locked part (51, 151) of the lock can (50, 150) when it is deviated from the regular position corresponding to 72, 172) abuts the locked part (51, 151) of the locking can (50, 150), while the front piece (7,
2,172) receives a reaction force from the front piece (72,172), but the locked part (5, 5) of the lock can (50, 150).
1, 151) is absorbed by the shock absorbing means (80), so that the front piece (72, 172) and the locked parts (51, 15) of the locking cans (50, 150).
The mutual damage of 1) is prevented.

[Procedure amendment 15]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction contents]

Further, in a state where the front piece (72, 172) is firmly engaged with the locked part (51, 151) of the lock can (50, 150), the front piece (72, 172).
2) replace the locked part (51, 1) of the lock can (50, 150).
When the tipping machine is operated to remove from the locking piece (51, 151), the leading piece (72, 172) does not come off from the locked part (51, 151) of the locking can (50, 150). 7
1, 171), the relay member (81, 18) operates.
The relative positional relationship between 1) and the base piece (71, 171) or the distal piece (72, 172) changes, and the coil spring (8)
4, 184) bends.

[Procedure amendment 16]

[Document name to be amended] Statement

[Correction target item name] 0065

[Correction method] Change

[Correction contents]

[0065]

As described above, according to one aspect of the present invention, the lock piece is divided into the base piece and the front piece, and the front piece is engaged with the locked part of the lock can. In the second power transmission path in the case of interlocking, the shock absorbing means is arranged between the base piece and the front piece, so that the error of the interlocking operation of the lock can is out of the allowable range, and the lock can is covered. When the locking part is displaced from the regular position corresponding to the leading piece, when the leading piece tries to engage with the locking part of the locking can, the leading piece is locked by the locking can. In contact with the lock portion, the front piece receives a reaction force from the lock portion of the lock can, the reaction force from the lock portion of the lock can is absorbed by the shock absorbing means, The locked part does not receive a large impact from the front piece, and the front piece receives a large reaction force from the locked part. It can be without, the front side piece and to prevent mutual damage of the locking portion of the locking cans.

[Procedure amendment 17]

[Document name to be amended] Statement

[Correction target item name] 0066

[Correction method] Change

[Correction contents]

Further, according to another configuration of the present invention, since the shock absorbing means is constituted by the relay member and the coil spring, the error of the interlocking operation of the lock can is out of the allowable range, and the lock can is covered. When the locking part is displaced from the regular position corresponding to the leading piece, when the leading piece tries to engage with the locking part of the locking can, the leading piece is locked by the locking can. By contacting the lock, the relative positional relationship between the relay member and the base piece or the front side piece changes, and the coil spring flexes to maintain the relative positional relationship. Absorbed, the locked part of the lock can is not subjected to a large impact from the front piece, and the front piece is not subjected to a large reaction force from the locked part. Mutual damage of the locked portions of the lock can is prevented.

[Procedure amendment 18]

[Document name to be amended] Statement

[Correction target item name] 0067

[Correction method] Change

[Correction contents]

Further, according to another configuration of the present invention, the lock piece is divided into a base piece and a front piece, and the shock absorption between the base piece and the front piece in the second power transmission path. If the error of the interlocking operation of the lock can is out of the allowable range and the locked part of the lock can deviates from the regular position corresponding to the front piece, the front piece is locked. When trying to engage the locked part of the lock can, the front piece abuts the locked part of the lock can, while the front piece receives a reaction force from the front piece. The reaction force from the locked part is absorbed by the shock absorbing means, and mutual damage of the front piece and the locked part of the locking can is prevented. Further, when the leading piece is operated to remove the leading piece from the locked part of the lock can while the leading piece is firmly engaged with the locked part of the lock can, If only the base piece moves without the piece coming off the locked part of the lock can, the relative positional relationship between the relay member and the base piece or the front piece changes, and the relative positional relationship changes. When the coil spring flexes and the coil spring flexes, the front piece remains engaged with the locked portion of the lock can, without being forcibly removed, and the front piece and It is possible to prevent the locked portions of the lock can from being mutually abraded without receiving a large frictional force therebetween.

Claims (5)

[Claims] 1. A switching machine for converting a tongue rail between a localization and an inversion in the vicinity of a turnout of a track, comprising a first power transmission path, a second power transmission path, and a lock can. The first power transmission path is connected to a tongue rail; the second power transmission path has a locking mechanism; the locking can has a locked part; The lock mechanism has a lock piece and a shock absorbing means, and the lock piece has a base piece located on a base side of the second power transmission path and a tip side of the second power transmission path. And the front piece is engaged with and disengaged from the locked part of the lock can. The shock absorbing means engages the front piece with the locked part of the lock can. In the case of the second power transmission path, the position of the front piece and the position of the Point lock device, characterized in that arranged between the position of the side pieces. 2. A switching machine for converting a tong rail between a localization and an inversion in the vicinity of a turnout of a track, comprising a first power transmission path, a second power transmission path, and a lock can. The first power transmission path is connected to a tongue rail; the second power transmission path has a locking mechanism; the locking can has a locked part; The lock mechanism has a lock piece and a shock absorbing means, and the lock piece has a base piece located on a base side of the second power transmission path and a tip side of the second power transmission path. The impact absorbing means has a relay member and a coil spring, and is divided into a front piece that engages with and disengages from the locked portion of the lock can. Fixed to one of the base piece or the tip piece On the other hand, the base piece or the other piece of the front piece is movably disposed on the other piece, and the coil spring is configured to engage the front piece with the locked part of the lock can. In the second power transmission path, the second piece is disposed between the other piece and the relay member, and is urged in a direction to maintain a relative positional relationship between the other piece and the relay member. And point machine. 3. A switching machine for converting a tong rail between a normal position and a reverse position beside a turnout of a line, comprising a first power transmission path, a second power transmission path, and a lock can. The first power transmission path is connected to a tongue rail; the second power transmission path has a locking mechanism; the locking can has a locked part; The lock mechanism has a lock piece and a shock absorbing means, and the lock piece has a base piece located on a base side of the second power transmission path and a tip side of the second power transmission path. And the front piece is engaged with and disengaged from the locked part of the lock can, and the shock absorbing means is configured such that, in the second driving force transmission path, the position of the front piece and It is arranged between the position of the base piece and Iron machine. 4. The first power transmission path has an operating can, the operating can is connected to the tongue rail, the locking mechanism includes a lock piece, a locking plate, and
A shock absorbing means, wherein the lock plate forms a step portion, and a lower plate is provided on one of both sides of the step portion to form a housing space for the operation lever above the lower plate. 4. The rolling device according to claim 1, wherein an upper plate is provided on the other side on both sides of the step, and a housing space for shock absorbing means is formed below the upper plate. Machine. 5. The first power transmission path and the second power transmission path are separated from a conversion roller, and the conversion roller is configured to be able to orbit by a conversion gear. The conversion roller is disposed so as to be sandwiched between the lower plate and the conversion gear, and the conversion roller is inserted into a cam groove formed in the operation can to form a cam groove formed in the lower plate of the lock plate. 5. The point machine according to claim 4, wherein the point machine is fitted to the point.