JPH06219277A - Point device - Google Patents

Abstract

PURPOSE:To provide a direct lock type point device of high safety without being immediately unlocked even when a switching bar or locking mechanism is broken at lock time by facilitating maintenance inspection work at a low cost with a simple structure. CONSTITUTION:A lock part 2 is supported to a basic rail 4. A lock bar 3, whose supporting point part 32 is supported to a switch rail 5, is rotated in a horizontal surface. The third hook part 34, when rotated with the supporting point part 32 serving as the center, is engaged with a stepped part 21. In a switch bar 1, the first protrusion part 11 is engaged with the first hook part 31 at the time of unlocking action, to disengage the third hook part 34 from the stepped part by rotating the lock bar 3. At the time of locking action, the second hook part 33 is moved along a guide surface 22, to rotate the lock bar 3 when the third hook part 34 is engaged with the stepped part 21, and the second protrusion part 12 rides across the second hook part 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling device having a locking mechanism provided at a connecting portion between a basic rail and a tongue rail.

[0002]

2. Description of the Related Art Conventionally, two types of rolling devices are known, an indirect locking system and a direct locking system.
The indirect locking system is used in electric switch machines, and is known, for example, from Japanese Patent Laid-Open No. 63-41602. The direct locking method is mainly used in foreign countries, and a direct locking method using a fish tail is known as a typical example. FIG. 10 is a diagram showing a configuration of a fishtail type turning device. In the figure, 1 is a rolling rod, 4
1, 42 are basic rails, 51 and 52 are tongue rails, 8
1 and 82 are fish tails, and 9 is a rolling machine. The rolling machine 9 reverses the rolling rod 1 in the a direction or the b direction. The figure shows the case where the tongue rails 51 and 52 are converted to the a direction. The rolling rod 1 has notches 111 and 1
Have twelve. The notch 111 is adapted to hook the fish tail 81 when changing to the b direction. The cutout portion 112 is adapted to hook the fish tail 82 when the cutout portion 112 is turned to the a direction. The fish tails 81 and 82 are connected to the tongue rails 51 and 52.

The case of changing to the b direction will be described. When the rolling rod 1 moves a predetermined distance, the fish tail 81 is hooked on the notch 111 and pushes the tongue rail 51 to convert it. The fish tail 82 is hooked on the notch 112 and pushes the tongue rail 52 to convert it. When the tongue rail 52 comes into close contact with the basic rail 42, the fish tail 82 comes off the notch 112 and rides on the rolling rod 1. The same applies when switching to the a direction.

[0004]

However, among the conventional rolling devices, the indirect locking type rolling device locks in the state where the locking rod has moved by a predetermined stroke. Due to fluctuations in the relative positions of the machine and the basic rail, a positional shift may occur between the locking rod and the lock piece, and in the worst case, conversion may not be possible.

In order to prevent the conversion failure as described above, it is essential to detect the relative positional relationship between the lock rod and the lock piece by using a highly accurate detection technique. Therefore, the structure becomes complicated and the cost becomes high. Moreover, when the displacement between the locking rod and the lock piece becomes so large as to substantially hinder the use, it is necessary to adjust the positional displacement between the two in the field, and maintenance work is required. It causes annoyance.

The direct locking method represented by the fish tail method does not have the problems of the indirect locking method. However, there is a problem that must be solved in terms of reliability, such as the inversion of the tongue rail cannot be reliably prevented when the rolling rod or the fish tail breaks.

[0007] Therefore, a first object of the present invention is to provide a rolling device capable of surely locking without causing conversion failure due to external factors.

A second object of the present invention is to provide a rolling device having a simple structure, low cost and easy maintenance and inspection work.

A third object of the present invention is to provide a highly safe rolling device which is not immediately unlocked even if the rolling rod or the locking mechanism is broken during locking. Is.

[0010]

In order to solve the above-mentioned problems, the present invention is a rolling device including a rolling rod, a locking portion, and a lock bar, wherein the rolling rod is provided. Unlocked
It reciprocates in the front-rear direction according to the locking operation and has a first protrusion and a second protrusion, and the first protrusion and the second protrusion are spaced from each other in the movement direction. The locking portion is provided on the basic rail side, has a guide surface and a step portion, and the guide surface is provided along the operating direction of the rolling rod, A step portion is provided on the rear end side so as to fall from the guide surface, and the lock bar includes a fulcrum portion, a first hook portion, a second hook portion, and a third hook portion. And the fulcrum portion constitutes a main plane of rotation which is rotatably axially fixed to the tongue rail side and intersects with the direction of gravity, and the first hook portion operates in front of the first protrusion portion. The second hooking portion may be provided so as to project into the area, and the second hooking portion may be pressed and driven in the direction of the locking portion by the second protrusion. As described above, the third hooking portion is provided so as to project into the operation region of the second protrusion, and the third hooking portion slides on the guide surface in the front-rear direction so as to project to a position where it can be attached to and detached from the step portion. Has been.

[0011]

First, the unlocking operation will be described. The rolling bar has the first protrusion in the moving direction, the locking part is supported on the basic rail side, and the guide surface is provided along the moving direction of the rolling bar. Since the first hooking portion is provided in front of the first projection so as to project into the operation area thereof, when the rolling bar moves forward during the unlocking operation, the first hooking portion is moved to the first hooking portion. It is pushed forward by the protrusion of 1. Since the fulcrum portion of the lock bar is rotatably attached to the tongue rail side, the first hook portion is the first.
When the lock bar is pushed forward by the protrusion of the lock bar, the lock bar rotates around the fulcrum part. Since the lock bar is provided so as to project to the position where the third hook portion can be attached to and detached from the step portion, the rotation of the lock bar releases the engagement between the third hook portion and the step portion. As a result, it is unlocked.

Next, the operation from the unlocked state to the locked state will be described. When the rolling bar moves backward during the locking operation, the second hook portion is driven rearward by the second protrusion. Since the third hooking portion is provided so as to project on the guide surface at a position where it can be slid backward,
When the second hook portion is driven backward by the second protrusion, the third hook portion moves rearward along the guide surface. The locking portion is provided on the rear end side so that the step portion falls from the guide surface, and the lock bar is provided so as to project to a position where the third hook portion can be attached to and detached from the step portion. The hooking part of the plate moves rearward along the guide surface, and finally reaches the position of the step part. Here, since the fulcrum part of the lock bar is rotatably fixed to the tongue rail side, the third locking part falls from the guide surface to the step part by the rotation of the lock bar and is locked to the step part. . The height of the second hooking portion decreases due to the third hooking portion falling into the step.

The lock bar is configured so that the second hook portion can be pressed and driven in the direction of the locking portion by the second protrusion portion.
Since the third projection is provided so as to project into the operation region of the second projection, the end surface of the second projection, which is low in height due to the engagement of the third projection with the step, The protrusion of 2 gets over. It is locked in this state.

Since the rolling device according to the present invention is a direct locking system, it can be reliably locked without causing conversion failure due to external factors. Further, unlike the conventional electric turning machine, no lock deviation detecting device or the like is required, the structure is simple, the cost is low, and the maintenance and inspection work is easy.

Further, since the lock bar constitutes the main plane of rotation in which the fulcrum portion intersects the direction of gravity, and the second protrusion holds the second hooking portion, the lock portion is formed. Also, even if the rolling bar is broken while the tongue rail is locked to the basic rail via the lock bar, it is difficult to release the locked state due to the action of gravity, etc. It is prevented and a fail-safe property for at least one train is obtained.

The tipping rod may include a third protrusion, and the third protrusion may be configured to engage with the tongue rail during locking. In the case of such a configuration, with the adhesion of the tongue rail to the basic rail, even if the lock bar breaks, the rolling bar prevents the tongue rail from being inverted,
Fail-safe property is obtained.

[0017]

1 is a partial sectional view of a rolling device according to the present invention, and FIG. 2 is a sectional view taken along line A2-A2 of FIG. In the figure, 1 is a rolling rod, 2 is a locking portion, 3 is a lock bar, 4 is a basic rail, and 5 is a tongue rail. In FIG.
The actual basic rail 4 and the tongue rail 5 are located above the illustrated cross-sectional view, but are shown by dotted lines for convenience of explanation.

The rolling rod 1 is a depending on the unlocking / locking operation.
Which reciprocates in the direction b or in the direction b, has a first protrusion 11 and a second protrusion 12, and the first protrusion 11 and the second protrusion 12 move in the operation direction a or b are provided at intervals. It moves in the a direction when performing the unlocking operation, and moves in the b direction when performing the locking operation. The rolling rod 1 is connected to a rolling device (not shown) via a switch adjuster 14.

The lock part 2 is connected via the connecting block 41.
The step portion 21 and the step portion 2 are fixedly provided on the basic rail 4.
And a guide surface 22 continuous with 1. Guide surface 22
Is provided along the moving direction a or b of the rolling rod 1,
The step portion 21 is provided on the rear end side so as to fall from the guide surface 22. The coupling block 41 has a guide surface 411.
The roller 16 provided on the rolling rod 1 moves on the guide surface 411.

The lock bar 3 has a first hook portion 31, a fulcrum portion 32, a second hook portion 33 and a third hook portion 34. The first hooking portion 31 is provided in front of the first protruding portion 11 so as to project into the operation area thereof. The fulcrum portion 32 is rotatably supported by the tongue rail 5 by an axial stopper and constitutes a main rotation plane intersecting the direction of gravity, generally a horizontal rotation plane. In FIG. 2, the connecting block 51 with the tongue rail 5 is omitted for convenience of description, and the fulcrum portion 32 is supported by the connecting block 51. The second hook portion 33 is provided so as to project into the operation area of the second protrusion 12 so that the second hook 33 can be pressed and driven in the direction of the locking portion 2 by the second protrusion 12. The third hook portion 34 is provided so as to slide on the guide surface 22 in the front-rear direction and project to a position where it can be attached to and detached from the step portion 21. 36 and 37 are limit switches. The limit switch 36 operates when the third hook portion 34 and the step portion 21 are engaged and outputs a lock signal, and the limit switch 37 outputs an unlock signal when unlocked. 1 is when unlocking
After moving a certain distance, the first protrusion 11 is engaged with the first hook 31 and the lock bar 3 is rotated to release the engagement between the third hook 34 and the step 21. To do. When performing the locking operation, the second protrusion 12 is moved after moving a certain distance.
Is engaged with the second hook portion 33, and the third hook portion 3
4 is moved along the guide surface 22, and the third hook 34
When the lock engages with the step 21, the lock bar 3 is rotated so that the second protrusion 12 gets over the second hook 33.

FIGS. 3 to 5 are views for explaining the process of unlocking conversion of the tongue rails by the rolling device according to the present invention. 3 is a diagram showing a state immediately before the rolling bar moves a predetermined distance from the locked state of FIG. 2 to be unlocked, FIG. 4 is a diagram showing an unlocked state, and FIG. 5 is a tongle rail conversion. FIG. In the figure, the same reference numerals as those in FIG. 2 denote the same components. Hereinafter, FIGS. 3 to 5 will be described together with the operation.

In the unlocking operation, when the rolling rod 1 moves in the direction a, the limit switch 37 first outputs an unlocking signal. Then, after the rolling rod 1 has moved a certain distance, the first protrusion 11 engages with the first hook 31.
As a result, as shown in FIG. 3, the second protrusion 12 is disengaged from the lock bar 3. When the rolling rod 1 further moves in the direction a, a moment is applied to the first hook portion 31, and the lock bar 3 rotates in the direction c as shown in FIG.
The engagement between the hooking portion 34 and the step portion 21 is released. As a result, the locking of the basic rail 4 and the tongue rail 5 is released. When the rolling rod 1 moves in the a direction in this state,
Since the lock bar 3 hits the second protrusion 12 and cannot rotate in the c direction, the lock bar 3 is pulled by the rolling bar 1 and moves in the a direction. Since the fulcrum 32 is supported by the tongue rail 5, as a result, the tongue rail 5 is supported.
Are converted as shown in FIG.

FIG. 6 and FIG. 7 are views for explaining a process in which the rolling device according to the present invention locks and locks tonguerel. FIG. 6 is a diagram showing a state immediately before the rolling rod 1 moves a predetermined distance to start conversion, and FIG. 7 is a diagram showing a state immediately before locking. In the figure, the same reference numerals as those in FIG. 2 denote the same components. Hereinafter, FIGS. 6 and 7 will be described together with the operation.

In the locking operation, the tipping rod 1 engages the second protrusion 33 with the second hook 33 after moving a certain distance in the direction b. As a result, as shown in FIG. 6, the lock bar 3 rotates in the d direction, and the third hook portion 34 contacts the guide surface 22. When the rolling bar 1 moves in the b direction in this state, the lock bar 3 cannot rotate any more in the d direction, so that the lock bar 3 slides the third hook portion 34 on the guide surface 22. Move in b direction. Thereby, the tongue rail 5 is converted. When the rolling bar 1 further moves in the b direction, as shown in FIG.
When 4 is engaged with the step 21, the lock bar 3 rotates in the d direction. As a result, the basic rail 4 and the tongue rail 5 are locked. Further, when the rolling rod 1 moves in the b direction, the second protrusion 12 gets over the second hooking portion 33 (see FIG. 2) and prevents the lock bar 3 from rotating in the c direction. While the locked state is maintained, the limit switch 36 outputs a locked signal.

As described above, the rolling device according to the present invention is
Since it is a direct locking system, it can be reliably locked without causing conversion failure due to external factors. Further, unlike the conventional electric turning machine, no lock deviation detecting device or the like is required, the structure is simple, the cost is low, and the maintenance and inspection work is easy.

Further, in a state in which the tongue rail 5 is locked to the basic rail 4 via the locking portion 2 and the lock bar 1, the lock bar 1 has a main rotation plane where the fulcrum portion 32 intersects the direction of gravity, which is typical. Since it constitutes a horizontal plane of rotation and the second projecting portion 22 presses the second hooking portion 33, even if the rolling rod 1 breaks, it is caused by the action of gravity or the like. It is difficult to release the locked state, so that the tongue rail 5 is prevented from being inverted, and the fail-safe property for at least one train is obtained.

In the embodiment shown in FIG. 2, the second protrusion 12
Are formed by rollers. The roller 12 is provided on a support body (not shown) that operates integrally with the rolling rod 1. Since the second protrusion 12 is a roller, the second hooking portion 33 can be easily climbed over and the third hooking portion 34 and the step portion 21 can be smoothly engaged.

Further, in the embodiment shown in FIG. 2, the lock bar 3 has a groove 35 extending from the second hook portion 33 toward the first hook portion 31, and the end portion of the groove 35 is formed. The second hook 33 is formed. Since the groove 35 is used, the mechanical strength can be maintained and the lock bar can be downsized. Also,
The side surface of the groove can also be used as a roller guide.

FIG. 8 is a sectional view of another embodiment of the rolling device according to the present invention. In the figure, the same reference numerals as those in FIG. 2 denote the same components.

The tipping rod 1 includes a third protrusion 13. The third protrusion 13 is adapted to engage with the coupling block 51 provided on the tongue rail 5 when locking. Therefore, the adhesion of the tongue rail 5 to the basic rail 4 is obtained, and even if the lock bar 3 is broken,
Since the third protrusion 13 gives the tongue rail 5 a holding force for preventing inversion, fail-safe property is obtained.

FIG. 9 is a diagram showing the construction of still another embodiment of the rolling device according to the present invention. In the figure, the same reference numerals as those in FIG. 1 denote the same components. A1, A
2 is a case including the lock part 2 and the lock bar 3, 41, 4
2 is a basic rail, 51 and 52 are tongue rails, 6 is a tie bar, and 7 is a rolling machine. The tie bar 6 connects the tongue rails 51 and 52, and both ends thereof are the basic rails 41 and 4.
It is in sliding contact with the lower surface of 2 and protrudes to the outside. The tie bar 6 prevents the tongue rails 51, 52 from rising, and stabilizes the operation of the rolling device.

The turning device according to the present invention can be used independently of the electric turning machine or can be used in combination with the electric turning machine.

[0033]

As described above, according to the present invention, the following effects can be obtained. (A) It is possible to provide a rolling device capable of reliably locking without causing conversion failure due to an external factor. (B) It is possible to provide a rolling device having a simple structure, low cost, and easy maintenance and inspection work. (C) Even if the rolling stick or the locking mechanism breaks during locking,
It is possible to provide a highly safe rolling device that is not unlocked immediately. (D) The tipping bar includes a third protrusion, and when the third protrusion is adapted to engage with the tongue rail at the time of locking, together with the adhesion of the tongue rail to the basic rail, It is possible to provide a rolling device capable of providing fail-safe property even if the lock bar breaks.

[Brief description of drawings]

FIG. 1 is a partial sectional view of a rolling device according to the present invention.

FIG. 2 is a sectional view taken along line A2-A2 of FIG.

FIG. 3 is a diagram showing a state immediately before the rolling device is unlocked.

FIG. 4 is a diagram showing a state in which the rolling device is unlocked.

FIG. 5 is a view showing a state in which the rolling device has changed the tongue rail.

FIG. 6 is a diagram showing a state immediately before starting a conversion for the rolling device to lock.

FIG. 7 is a view showing a state immediately before the rolling device is locked.

FIG. 8 is a sectional view of another embodiment of the rolling device according to the present invention.

FIG. 9 is a diagram showing the configuration of still another embodiment of the rolling device according to the present invention.

FIG. 10 is a diagram showing a configuration of a fishtail type turning device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rolling bar 11 1st protrusion part 12 2nd protrusion part 2 Locking part 21 Step part 22 Guide surface 3 Lock bar 31 1st latching part 32 Support point part 33 2nd latching part 34 3rd Hook part 4 Basic rail 5 Tong rail

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nobuo Anzai No. 6-5 Marunouchi, Chiyoda-ku, Tokyo Within East Japan Railway Company (72) Inventor Takahashi Ritsue 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Noriaki Sugimoto 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Minoru Tadokoro 2-29 Heian-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Address 1 Kyosan Manufacturing Co., Ltd. (72) Inventor Kunio Sasakawa 2-29 Heian-cho, Tsurumi-ku, Yokohama, Kanagawa Prefecture 1 Kyosan Manufacturing Co., Ltd. (72) Hisao Takahashi 1-13 Kamikizaki, Urawa City, Saitama Prefecture No. 8 Japan Signal Co., Ltd. in the Yono Works (72) Inventor Minoru Fujii 1-13-8 Kamikizaki, Urawa City, Saitama Japan Signal Stock Association Yono business premises (72) inventor Iino HiroshiShiro Saitama Prefecture Urawa Kamikizaki 1-chome 13th No. 8 Nippon Signal Co., Ltd. Yono workplace

Claims (5)

[Claims] 1. A rolling device including a rolling bar, a locking portion, and a lock bar, wherein the rolling bar reciprocates in the front-rear direction in response to an unlocking / locking operation. A first protrusion and a second protrusion, wherein the first protrusion and the second protrusion are provided at intervals in the operation direction, Is supported on the basic rail side and has a guide surface,
A step portion, the guide surface is provided along the operating direction of the rolling rod, the step portion is provided on the rear end side so as to fall from the guide surface, the lock bar, It has a fulcrum part, a first hooking part, a second hooking part, and a third hooking part, and the fulcrum part is rotatably axially locked to the tongue rail side and intersects the direction of gravity. A main rotation plane is formed, and the first hooking portion is provided in front of the first protruding portion so as to project into the operation area thereof.
The second hooking portion is provided so as to project into the operation area of the second protrusion so that the second hooking portion can be pressed and driven in the direction of the locking portion by the second protrusion, and the third hooking portion is provided. A rolling device in which a stopper slides on the guide surface in the front-rear direction and is provided so as to project to a position where it can be attached to and detached from the step. 2. The rolling device according to claim 1, wherein the second protrusion is a roller. 3. The lock bar has a groove extending from the second hooking portion toward the first hooking portion, and an end portion of the groove forms the second hooking portion. Claim 1 or 2
The rolling device described in. 4. The rolling rod includes a third protrusion,
The rolling device according to claim 1, 2 or 3, wherein the third protrusion engages with the tongue rail during locking. 5. The rolling according to claim 1, wherein the tie bar includes one end side of which is interlocked with the rolling bar and the other end side of which is connected to the tongue rail. One device.