JPH0776275A - Switching device - Google Patents

Abstract

PURPOSE:To provide a direct closing switch rod which can maintain an almost constant close adhesion between a fundamental rail and a tongue rail. CONSTITUTION:A switch rod 1 operates in reciprocation in the direction (a) or (b) according to the locking or lock releasing operation. A locking mechanism 2 is installed between a fundamental rail 4 and a tongue rail 5, which are directly restrained or released in acoordance with the operation of the switch rod 1. A close adhesion adjusting mechanism 3 includes a spring 31, which is installed between the switch rod 1 and the tongue rail 5, and the tongue rail 5 is applied with a spring load in locking.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a direct locking type rolling device.

[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 an electric switching machine and is known, for example, from Japanese Patent Laid-Open No. 63-41612. The direct locking method is mainly used in foreign countries, and a method using a fish tail is known as a typical example.

[0003]

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 position between the lock rail 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 above-mentioned conversion failure, it is essential to detect the relative positional relationship between the locking rod and the lock piece by using a highly accurate detection technique. Therefore, the structure becomes complicated and the cost becomes high. Moreover, the gap between the locking rod and the lock piece is
Substantially, when it becomes large enough to prevent its use,
It is necessary to adjust the positional deviation between the two in the field, which causes troublesome maintenance work.

The direct locking method represented by the fish tail method does not have the problems of the indirect locking method. However, in the direct locking method, generally, the locking mechanism fixed to the basic rail side is mechanically coupled to the tongue rail side for locking, so that the position between the rolling machine and the basic rail is set. It is difficult to keep the adhesive force between the basic rail and the tongue rail constant because the adhesive force of the tongue rail to the basic rail fluctuates due to displacement or the like. When the adhesion is reduced, it is necessary to adjust the position of the switch adjuster and adjust the adhesion, which makes maintenance and inspection work troublesome.

Further, since a large load is applied directly to the rolling rod when the train passes, the rolling rod, the switch adjuster, the rolling machine and the like are worn out quickly and their life is shortened. When an electric switch is used, the operation, the locking rod, the connecting rod, and the like receive the load when the train passes, resulting in wear and shortening of the service life.

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

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

Yet another object of the present invention is to provide a rolling device capable of maintaining a constant adhesion between the basic rail and the tongue rail.

Still another object of the present invention is to provide a rolling device which does not require an adhesion force adjustment work and is easy to perform maintenance and inspection work.

Still another object of the present invention is to reduce the wear and shortening of the life of various components such as a rolling rod, a switch adjuster, an operation, a locking rod and a connecting rod due to a load when passing a train. It is to provide a tetsu device.

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

[0013]

In order to solve the above-mentioned problems, the present invention is a rolling device having a rolling rod, a locking mechanism, and an adhesion adjusting mechanism. One stick
The locking mechanism is provided to reciprocate in response to a locking and unlocking operation, and the locking mechanism is provided between the basic rail and the tongue rail, and responds to the motion of the rolling rod and the basic rail and the tongue rail. The tongue rail is directly restrained or released, and the adhesion adjusting mechanism includes a spring, and the spring is provided between the rolling rod and the tongue rail, and the tongue rail is locked at the time of locking. Give a spring load to.

[0014]

[Function] The rolling bar reciprocates according to the locking and unlocking motions, and the locking mechanism is provided between the basic rail and the tongue rail and responds to the motion of the rolling bar. Since the basic rail and the tongue rail are directly restrained or released, a direct locking type rolling device can be obtained. For this reason, the locking can be surely performed without causing conversion failure due to external factors. Also, unlike the conventional electric switch,
No lock error detector is required, the structure is simple, the cost is low, and the maintenance and inspection work is easy.

The adhesion force adjusting mechanism includes a spring, and the spring is provided between the rolling rod and the tongue rail and applies a spring load to the tongue rail when locking. For this reason, when a displacement occurs between the rolling machine and the basic rail, the spring expands and contracts to absorb the displacement. As a result, the adhesion of the tongue rail to the basic rail is kept substantially constant despite the displacement. At this time, the adhesive force adjusting action is automatically performed based on the expanding and contracting action of the spring. Therefore, the work of adjusting the adhesion force by aligning the position of the switch adjuster is unnecessary, and the maintenance and inspection work becomes easy.

Further, since a large load during train passage is absorbed by the expansion and contraction action of the spring, the wear of various components such as the rolling rod, the switch adjuster, the operation, the locking rod and the connecting rod is mitigated, The life of these various components is extended.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a partially broken sectional view of a rolling device according to the present invention, and FIG. 2 is a sectional view taken along the line A2-A2 of FIG. In the figure, 1 is a rolling rod, 2 is a locking mechanism, 3 is an adhesion adjusting mechanism, 4 is a basic rail, 5 is a tongue rail, and 6 is a coupling member. The rolling rod 1 reciprocates in the a direction or the b direction depending on the unlocking / locking operation. The rolling rod 1 is connected to a rolling machine (not shown) via a switch adjuster 14 or the like. The locking mechanism 2 is provided between the basic rail 4 and the tongue rail 5, and directly reacts the basic rail 4 and the tongue rail 5 in response to the movement of the rolling rod 1 in the a direction or the b direction. Restrain or release.

The locking operation of the locking mechanism 2 is performed via the connecting member 6. The connecting member 6 is a tongue rail side connecting member 6
1 and a basic rail-side coupling member 62. The tongue rail side connecting member 61 is integrally fixed to the tongue rail 5 with bolts 63, and the basic rail side connecting member 6 is provided.
2 is fixed to the basic rail 4. The locking mechanism 2 locks by integrally fixing the tongue rail side connecting member 61 and the basic rail side connecting member 62.

As described above, the rolling rod 1 reciprocates in the a direction or the b direction depending on the locking and unlocking motions, and the locking mechanism 2 operates between the basic rail 4 and the tongue rail 5. Since the basic rail 4 and the tongue rail 5 are directly restrained or released in response to the movement of the rolling rod 1 in the a direction or the b direction, a direct locking type rolling device is provided. can get. For this reason, the locking can be surely performed 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.

The contact force adjusting mechanism 3 includes a spring 31, and the spring 31 is provided between the rolling rod 1 and the tongue rail 5.
A spring load is applied to the tongue rail 5 at the time of locking. The drawing shows the position of the adhesion adjusting mechanism 3 when locked. Therefore, when a displacement occurs between the rolling machine (not shown) and the basic rail 4, the spring 31 expands and contracts in the direction of arrow a or b so as to absorb the displacement. This allows
Despite the displacement of the basic rail 4, the basic rail 4
The adhesive force of the tongue rail 5 to the is maintained substantially constant.

At this time, the adhesive force adjusting action is automatically performed in the a direction or the b direction based on the expanding and contracting action of the spring 31. Therefore, the work of adjusting the adhesion force by aligning the switch adjuster 14 is unnecessary, and the maintenance and inspection work is facilitated.

The load when the train passes is a of the spring 31.
Since it is absorbed by the expansion / contraction action in the direction b or the direction b, the wear of various components such as the rolling rod 1, the switch adjuster 14, the operating rod, the locking rod, the connecting rod, etc. is mitigated, and these various components The life is extended.

The illustrated adhesion adjusting mechanism 3 includes a movable body 32, and the movable body 32 is arranged between the rolling rod 1 and the tongue rail 5 via a spring 31. The tongue rail 5 has a coupling member 61, the rolling rod 1 has a receiving member 33 provided upright, and the movable body 32 has one end received by the receiving portion 33 and the other end. The side is pressed against the connecting member 61 provided on the tongue rail 5. Spring 31
Is interposed between the receiving member 33 and the receiving portion 34 provided on the movable body 32, and is compressed between the two. The illustrated spring 31 is a coil spring, but may be a disc spring or the like. Further, the adhesion adjusting mechanism 3 is supported on the rolling rod 1 side, but may be supported on the tongue rail 5 side.

FIG. 3 shows 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 FIGS. 1 and 2 denote the same components. The spring 31 constituting the adhesion force adjusting mechanism 3 is a leaf spring. One end of the spring 31 is fixed to the rolling rod 1 and the other end, which is a free end, is pressed against the tongue rail-side coupling member 61. Reference numeral 35 is a fixture for fixing the spring 31 to the rod 1 by rolling, and 64 is a screw for connecting the connecting member 62 to the basic rail 4.

FIG. 4 is a sectional view taken along the line A4-A4 in FIG. 2, showing the details of the rolling bar 1 and the locking mechanism 2. In the embodiment, the rolling bar 1 has the first projection 11
And a second protrusion 12. The first protruding portion 11 and the second protruding portion 12 are provided at intervals in the operation direction. When the rolling bar 1 is unlocked, the rolling bar 1 moves the fixed distance and then moves the first protrusion 11 to the first position.
The lock bar 22 is rotated by engaging with the hooking portion 221 of the second locking portion 221 to release the engagement between the third hooking portion 224 and the step portion 211. When the locking operation is performed, the second protrusion 12 is engaged with the second hook 223 after moving a certain distance, and the third hook 224 is moved along the guide surface 212, When the third hooking portion 224 engages with the step portion 211, the lock bar 22 is rotated so that the second protrusion 12 gets over the second hooking portion 223.

The locking mechanism 2 includes a locking portion 21 and a lock bar 22.
Is included. The locking portion 21 is the basic rail-side coupling member 6
2 is fixedly provided, and thus is fixed to the basic rail 4 via the basic rail-side coupling member 62. The illustrated locking portion 21 includes a movable adjusting mechanism 200, a movable body 210, and a step portion 2.
11 and a guide surface 212. The step portion 211 is provided on the movable body 210, and the movable body 210 is the movable adjustment mechanism 2
The movement of the rolling bar 1 is adjusted in the direction of movement a or b by 00. The guide surface 212 is provided along the movement direction a or b of the rolling bar 1, and the step portion 211 is formed by the guide surface 212.
It is provided on the rear end side so that it falls from the bottom. The basic rail-side coupling member 62 has a guide surface 621,
The roller 16 provided on the rolling rod 1 moves on the guide surface 621.

The lock bar 22 includes a first hook portion 221,
The fulcrum portion 222, the second hook portion 223, and the third hook portion 2
Has 24. The lock bar 22 further has a groove 225 from the second hooking portion 223 toward the first hooking portion 221, and an end portion of the groove 225 forms the second hooking portion 223. The first hooking portion 221 is provided in front of the first protrusion 11 so as to project into the operation area. The fulcrum portion 222 is rotatably supported by the tongue rail 5 by means of a shaft and constitutes a main rotation plane intersecting the direction of gravity, generally a horizontal rotation plane. The fulcrum portion 222 is supported by the tongue-rail-side coupling member 61. Second hook 223
Is provided at a distance from the first hooking portion 221 to the rear of the first hooking portion 221, and can be pressed and driven by the second protrusion 12 toward the locking portion 21. It is provided so as to project inward. Third hook 22
4 is provided at a distance from the first hooking portion 221 to the rear of the first hooking portion 221, and is also provided so as to project to a position where it can be attached to and detached from the step portion 211 by sliding the guide surface 212 in the front-back direction.

226 and 227 are limit switches. The limit switches 226 and 227 are attached to the basic rail coupling member 62. Limit switch 22
6 is that the lock portion 224 of the lock bar 22 is the step portion 21 of the locking portion.
A lock signal is output when it is locked to 1, and a release signal is output when the lock is released. In the limit switch 227, the locking portion 224 of the lock bar 22 is engaged with the stepped portion 211 of the locking portion, and the second protrusion 12 attached to the rolling bar 1 is the locking portion 223 of the lock bar 22. A lock signal is output when reaching a position where the lock bar 22 is overcome, and a release signal is output when the second protrusion 12 moves and the lock bar 22 rotates.

Next, the locking and unlocking operation will be described with reference to FIGS. In the unlocking operation, the rolling rod 1 is a
When moving in the direction, first, the limit switch 227 outputs an unlock signal. Then, after the rolling rod 1 has moved a certain distance, the first protrusion 11 engages with the first hooking portion 221. As a result, the second protrusion 12 is disengaged from the lock bar 22 as shown in FIG. When the rolling rod 1 further moves in the direction a, a moment is applied to the first hooking portion 221 and the lock bar 22 rotates in the direction c as shown in FIG. The engagement with the stepped portion 211 is released, and the limit switch 226 outputs a release signal. As a result, the locking of the basic rail 4 and the tongue rail 5 is released. When the rolling bar 1 moves in the a direction in this state, the lock bar 22 hits the second protrusion 12 and cannot rotate in the c direction. Therefore, the lock bar 22 is connected to the rolling bar 1 and is in the a direction. To move to. Since the fulcrum part 222 is supported by the tongue rail 5, the tongue rail 5 is consequently converted as shown in FIG.

FIG. 8 and FIG. 9 are views for explaining a process in which the rolling device according to the present invention shifts and locks tonguerel. FIG. 8 is a diagram showing a state immediately before the rolling rod 1 moves a predetermined distance to start conversion, and FIG. 9 is a diagram showing a state immediately before locking.

In the locking operation, the tipping rod 1 engages the second protrusion with the second hook 223 after moving a certain distance in the direction b. As a result, as shown in FIG.
The lock bar 22 rotates in the d direction, and the third hook 224
Hits the guide surface 212. In this state, the rolling rod 1 is b
When the lock bar 22 moves in the direction, the lock bar 22 cannot rotate any more in the d direction.
While moving 24 on the guide surface 212, it moves in the b direction. Thereby, the tongue rail 5 is converted. When the rolling rod 1 further moves in the b direction, as shown in FIG.
When the third hook portion 224 engages with the step portion 211, the lock bar 22 rotates in the d direction. As a result, the basic rail 4 and the tongue rail 5 are locked, and the limit switch 226 outputs a locking signal. Furthermore, the rolling rod 1 is b
Moving in the direction, the second protrusion 12 moves into the second hook 2.
Since the lock bar 22 is prevented from rotating in the c direction by overcoming 23, the lock state is maintained and the limit switch 227 outputs a lock signal.

In the state where the tongue rail 5 is locked to the basic rail 4 via the lock portion 21 and the lock bar 22, the lock bar 22 has a main rotation plane where the fulcrum portion 222 intersects the gravity direction, typically. Constructing a horizontal plane of rotation, and
Since the second protrusion 12 presses the second hooking portion 223, even if the rolling rod 1 breaks, it is difficult to release the locked state due to the action of gravity or the like. Inversion of the rail 5 is prevented, and fail-safe property for at least one train is obtained.

In the embodiment, the second protrusion 12 is formed of a roller. 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 hook 22
3 can be easily overcome, and the third hooking portion 224
The engagement with the stepped portion 211 can be done smoothly.

Further, the lock bar 22 includes the second hook 2
23 has a groove 225 from the first hook portion 221 to
Since the end portion of the groove 225 forms the second hook portion 223, the lock bar can be downsized. The side surface of the groove 225 can also be used as a roller guide.

FIG. 10 is a partially broken sectional view of another embodiment of the rolling device according to the present invention, and FIG. 11 is A11-A11 of FIG.
It is sectional drawing on a line. In the figure, FIG. 1 and FIG.
The same reference numerals as in FIG.

In this embodiment, the connecting mechanism 7 is provided. The connecting mechanism 7 is basically a locking mechanism 2 and a tongue rail 5.
It is provided between the side. In the coupling mechanism 7, the tongue-rail-side coupling member 61 has a first coupling member 612 and a second coupling member 6
13 and 13. First coupling member 612 and second
The connecting member 613 is connected at the connecting portion 71.
The first coupling member 612 is integrated with the tongue rail 5, and the second coupling member 613 connects the output of the locking mechanism 2 to the first coupling member 6.
12 and the tongue rail 5 are formed. The second coupling member 613 is connected to the guide portion 611 that passes under the basic rail 4 and the tongue rail 5. The guide portion 611 is in sliding contact with the guide portion 621 guided from the basic rail-side coupling member 62. The connecting portion 71 has at least a degree of freedom F1 around an axis O1 taken in the longitudinal direction of the tongue rail 5, and the first connecting member 612 and the second connecting member 613.
And are connected. Such a specific structure of the connecting portion 71 can be realized by connecting the first connecting member 612 and the second connecting member 613 with a rotating shaft extending along the longitudinal direction of the tongue rail 5. The connecting portion 71 is positioned within the height of the tongue rail 5 or the basic rail 4, preferably near the center thereof.

As described above, the connecting mechanism 7 is provided between the locking mechanism 2 and the tongue rail 5 side, and the first connecting member 61 is provided.
2 is integrated with the tongue rail 5, and the second coupling member 613
Is integrated with the locking mechanism 2, and the connecting portion 71 has a degree of freedom F1 around at least an axis O1 taken in the longitudinal direction of the tongue rail 5, and the first connecting member 612 and the second connecting member 613. Since they are connected to each other, the force transmitted from the rolling rod 1 to the locking mechanism 2 acts on the tongue rail 5 at the position of the connecting portion 71. Since the position of the connecting portion 71 is closer to the tongue rail than the fixed position of the locking mechanism 2,
The torsional moment acting on is significantly reduced. Therefore, when the rolling bar operates in the locking direction with the foreign matter sandwiched between the tip of the tongue rail 5 and the basic rail 4, the amount of twist of the tongue rail 5 decreases, and I can't lock it. For this reason, false locking due to the so-called "small turnback phenomenon" is prevented.

FIG. 12 is a diagram showing the configuration 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,
A2 is a case including a lock part 21 and a lock bar 22, 4
1, 42 are basic rails, 51 and 52 are tongue rails, 8
Is a tie bar, and 9 is a rolling machine. The tie bar 8 connects the tongue rails 51 and 52, and both ends thereof are the basic rail 4
It is in sliding contact with the lower surfaces of the Nos. 1 and 42 and protrudes to the outside. The tie bar 8 prevents the tongue rails 51 and 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.

[0040]

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) It is possible to provide a rolling device capable of keeping the adhesion between the basic rail and the tongue rail almost constant. (D) It is possible to provide a rolling device which does not require an adhesion force adjustment work and is easy to perform maintenance and inspection work. (E) It is possible to provide a rolling device capable of mitigating wear and shortening of life of various components such as a rolling rod, a switch adjuster, an operation, a locking rod and a connecting rod due to a load when a train passes. . (F) Even if the rolling rod or the locking mechanism breaks during locking,
It is possible to provide a highly safe rolling device that is not unlocked immediately.

[Brief description of drawings]

FIG. 1 is a plan view of a tipping device according to the present invention.

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

FIG. 3 is a cross-sectional view of another embodiment of the rolling device according to the present invention.

FIG. 4 is a cross-sectional view taken along the line A4-A4 of FIG.

FIG. 5 is a diagram showing a state immediately before the rolling device is unlocked.

FIG. 6 is a view showing a state in which the rolling device is unlocked.

FIG. 7 is a view showing a state in which the rolling device has converted the tongue rail.

FIG. 8 is a diagram showing a state immediately before starting the conversion for the rolling device to lock.

FIG. 9 is a view showing a state immediately before the rolling device is locked.

FIG. 10 is a partial sectional view of another embodiment of the rolling device according to the present invention.

11 is a cross-sectional view taken along the line A11-A11 of FIG.

FIG. 12 is a plan view showing another embodiment of the rolling device according to the present invention.

[Explanation of symbols]

 1 Rolling rod 2 Locking mechanism 3 Adhesion adjustment mechanism 4 Basic rail 5 Tong rail

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kunio Sasakawa 2-29-1, Heian-cho, Tsurumi-ku, Yokohama-shi, Kanagawa 1 Kyosan Manufacturing Co., Ltd. (72) Hisao Takahashi 1-13, Kamikizaki, Urawa-shi, Saitama No. 8 Japan Signal Co., Ltd. at Yono Works (72) Inventor Minoru Fujii 1-13-8 Kamikizaki, Urawa City, Saitama Prefecture Japan Signal Co., Ltd. at Yono Works (72) Inventor Koshiro Iino Kamikizaki, Urawa City, Saitama Prefecture 1-13-8 Nihon Signal Co., Ltd. Yono Works

Claims (8)

[Claims] 1. A rolling device having a rolling bar, a locking mechanism, and an adhesion adjusting mechanism, wherein the rolling bar reciprocates in response to locking and unlocking motions. The locking mechanism is provided between the basic rail and the tongue rail, and directly restrains or releases the basic rail and the tongue rail in response to the movement of the rolling rod. The contact force adjusting mechanism includes a spring, and the spring is provided between the rolling rod and the tongue rail to apply a spring load to the tongue rail when locking. 2. The adhesion adjusting mechanism includes a movable body,
The rolling device according to claim 1, wherein the movable body is arranged between the rolling rod and the tongue rail via the spring. 3. The rolling device according to claim 1, wherein the spring is a coil spring. 4. The rolling device according to claim 1, wherein the spring is a leaf spring. 5. The rolling device according to claim 1, wherein the adhesion adjusting mechanism is supported on the rolling rod side. 6. The rolling device according to claim 1, wherein the adhesion adjusting mechanism is supported on the tongue rail side. 7. The rolling bar comprises a first protrusion and a second protrusion.
The first protrusion and the second protrusion are provided at a distance from each other in the movement direction, and the locking mechanism includes a locking part and a lock bar. The locking part is supported on the basic rail side, and includes 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, Fulcrum part, first hooking part, second hooking part, third
And the fulcrum portion is rotatably pivoted to the tongue rail side to form a main plane of rotation intersecting the direction of gravity, and the first hook portion is the first projection portion. The movement of the second protrusion is provided so as to project forward in the operation region thereof so that the second hook can be pressed and driven in the direction of the locking portion by the second protrusion. 7. The protrusion is provided in the area, and the third hooking portion is provided so as to project at a position where it can slide on the guide surface and can be attached to and detached from the step portion. The rolling device described in. 8. A connecting mechanism is provided, wherein the connecting mechanism is provided between the locking mechanism and the tongue rail side, and
A first connecting member integrated with the tongue rail, the second connecting member including a connecting member, a second connecting member, and a connecting portion;
The connecting member constitutes a path for transmitting the output of the locking mechanism to the first connecting member and the tongue rail, and the connecting portion is
At least, the first coupling member and the second coupling member are coupled to each other with a degree of freedom around an axis taken in the direction of the tongue rail. The rolling device according to 6 or 7.