JP2538755Y2 - Railway branching equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branching device for switching courses in a magnetic levitation railway or the like.

[0002]

2. Description of the Related Art As a branching method of a magnetic levitation type railway, as shown in FIG. This direction is connected to the front-rear direction and the direction perpendicular thereto is referred to as the left-right direction) to form a branch track 3, and the branch track 3 is connected to a reference position connected to a reference line A as shown by a solid line in FIG. In general, a traverser method is known in which the traverser moves between a branch position connected to a branch line B as shown by the virtual line.

In the traverser type branching device, a stop lock mechanism 4 that stops the branch orbit 3 (each moving girder 2) at a reference position and a branch position and locks it so as not to move from this position. Is provided.

The structure of the conventional stop lock mechanism 4 will be described with reference to FIGS.

A stopper 5 is provided on the roadbed C on which the branch track 3 is installed, and stopper receivers 6 are provided on both right and left sides of the movable girder 2 so as to project downward. When the line reaches the branch position, the stopper 5 comes into contact with the stopper receiver 6 as shown in FIG.
Stops moving. Reference numerals 5a and 6a denote corresponding surfaces of the stopper 5 and the stopper receiver 6 (hereinafter, referred to as stopper surfaces).

On the other hand, the stopper 5 has a lock lever 7
Are located around a horizontal axis 8 in the left-right direction (a direction perpendicular to the stopper surfaces 5a, 6a).
It is mounted to be rotatable on a plane parallel to.

The lock lever 7 is driven by a lock cylinder (hydraulic cylinder) 9, and the end of the operation point side is opposite to the stopper surface 6 a of the stopper receiver 6 as shown by the solid line in FIG. 6b) and an unlocked position in which the same end portion is separated from the lock surface 6b as shown by the imaginary line in the drawing, and the stopper receiver 6 moves the stopper 5 and the lock lever 7 in the locked position. The lock is released at the unlocked position, and the movable girder 2 can be moved.

[0008] At the end of the lock lever 7 on the action point side,
A roller 10 is provided for reducing frictional resistance during locking and unlocking operations.

[0009]

However, according to the conventional stop lock mechanism 4, as described above, the lock lever 7 rotates on a plane parallel to the stopper surfaces 5a, 6a to lock the lock.
For unlocking, it is necessary to make the gap α between the stopper surface 5a of the stopper 5 and the lock lever 7 equal to the thickness dimension of the stopper receiver 6.

Therefore, strict dimensional control is required, and the precision of component production and assembly must be increased, which complicates component production and assembly. In addition, since these dimensions change due to the influence of heat, maintenance is also troublesome.

If the distance α is smaller than the thickness of the stopper receiver 6, the locking operation is not performed. Therefore, in practice, the space α is slightly larger than the thickness to provide a margin. For this reason, especially when the difference becomes large due to thermal influence, rattling occurs in the locked state, and there is a problem in the reliability of the lock.

Therefore, the present invention is to produce a stop lock mechanism,
An object of the present invention is to provide a railway branching device that can be easily assembled and maintained, and can improve locking reliability.

[0013]

According to a first aspect of the present invention, a branch track is moved on a track bed between a reference position connected to a reference line and a branch position connected to the branch line. In the configured railway branching device, as a stop lock mechanism for stopping and locking the branch track at the reference position and the branch position, a stopper is provided on the roadbed, and a stopper receiver that abuts the stopper is provided on the branch track, A lock which presses the lock lever on the roadbed, with the end on the application point side pressing the stopper receiver against the stopper on a plane perpendicular to the contact surface with the axis parallel to the contact surface between the stopper and the stopper receiver as the center. And a drive means for rotatably driving the lock lever between a position and an unlocked position at which the end of the action point side is separated from the stopper receiver. It is intended.

According to a second aspect of the present invention, in the configuration of the first aspect, the end of the lock lever at the lock position on the side of the operation point, the contact point of the stopper receiver, and the rotation center of the lock lever are defined by the rotation center axis of the lever. This is almost the same on an orthogonal horizontal line.

According to a third aspect of the present invention, in the configuration of the first or second aspect, the lock lever is provided with lock biasing means for applying a rotational force toward the lock position.

[0016]

According to the above construction, the lock lever is not placed on a plane parallel to the contact surface of the stopper with the stopper receiver, but on a plane perpendicular to the contact surface about an axis parallel to the contact surface. Since the lock and the unlocking action are performed by rotating, even if an error occurs in the positional relationship between the lock lever and the stopper receiver, the locking action is reliably performed only by changing the amount of rotation of the lever and the contact point. Done.

Accordingly, since the dimensional accuracy of the stop lock mechanism is loosened, parts production and assembly become easy, and
The locking reliability is high.

Further, according to the configuration of the second aspect, it is possible to reduce the rotational moment in the unlock direction acting on the lock lever in the locked state.

Accordingly, the lock holding force of the drive means of the stop lock mechanism is increased so that the lock is not released or the lock is not caused by this rotational moment (for example, when the drive means is a hydraulic cylinder, the cylinder pressure is increased. ) No longer needed.

On the other hand, according to the structure of the third aspect, even if the lock holding force of the driving means is lost in the locked state, the locked state can be ensured by the lock urging means.

[0021]

An embodiment of the present invention will be described with reference to FIGS.

In the drawing, reference numeral 11 denotes a stopper provided on the track bed C, and 12 denotes a stopper receiver projecting downward from the moving girder 2. And is locked at that position by a lock lever 13 provided on the stopper 11. Reference numeral 14 denotes a pedestal for installing the stopper 11 on the roadbed C.

The lock lever 13 is formed substantially in a T-shape, and the intersection of the T-shape is rotated by the horizontal shaft 15 in the front-rear direction with the end 13a of the force point side facing downward and the end 13b of the application point side facing sideways. Supported as possible.

Reference numeral 16 denotes a roller provided at the end 13b on the working point side, and reference numeral 17 denotes a buffer provided on a contact surface 11a of the stopper 11 with the stopper receiver 12 (hereinafter, both contact surfaces are referred to as a stopper surface). It is a rubber sheet for use.

Reference numeral 18 denotes a lock cylinder (hydraulic cylinder) serving as a driving means provided on the pedestal 14. The piston rod end of the lock cylinder 18 is
3 is pin-connected to the power point side end 13a.

When the lock cylinder 13 is contracted or extended, the lock cylinder 18 is rotated by a roller 16 around a horizontal shaft 15 parallel to the stopper surfaces 11a and 12a of the stopper 11 and the stopper receiver 12 as shown by a solid line in FIG. A lock position where the stopper receiver 12 comes into contact with a surface (hereinafter, referred to as a lock surface) 12b opposite to the stopper surface 12a;
As shown by the imaginary line in the drawing, the roller 16 rotates between an unlock position where the roller 16 is detached downward from the lock surface 12, and the stopper receiver 12 is sandwiched between the roller 16 and the stopper 11 at the lock position. Locked.

As described above, since the lock lever 13 rotates and performs locking and unlocking operations not on a plane parallel to the stopper surfaces 11a and 12a but on a plane perpendicular to the stopper surfaces 11a and 12a, for example, the lock lever 13 and the stopper receiving member are not rotated. 12, the amount of rotation of the lock lever 13 and the contact point P
Only a slight change in the locking action (shown in FIG. 2) ensures the locking action.

As shown in FIG. 2, the contact point P is located at substantially the same height as the rotation center O of the lock lever 13 (the center of the horizontal shaft 15) (a position slightly higher than the rotation center O by a small dimension β). ) Is set to

In this way, in the locked state, the force F in the direction of the arrow is applied to the roller 16 from the movable girder 2 via the stopper receiver 12.
, The rotational moment (F × β) acting on the lock lever 13 in the unlock direction decreases.

Therefore, since the lock holding force of the lock cylinder 18 against the rotational moment, that is, the cylinder pressure can be reduced, the cylinder 18 and its related devices,
This facilitates the design of the hydraulic piping and is advantageous in terms of cost.

On the other hand, between the other end 13c of the lock lever 13 and the pedestal 14, a tension coil spring 19 is provided as lock urging means for constantly applying a turning force to the lock lever 13 toward the lock position. Have been.

The spring 19 causes the cylinder 18 to lock due to, for example, oil leakage from the piping of the lock cylinder 18.
The lock lever 13 is held in the lock position even when the lock holding force is lost due to the lock.

By the way, instead of the spring 19 of the above-described embodiment, the lock lever 13 is provided with an end 1
A weight may be attached to 3c.

Further, as the driving means of the lock lever 13, instead of the hydraulic cylinder 18 of the above embodiment, a configuration may be adopted in which the torque of a hydraulic motor or an electric motor is transmitted to the lock lever 13 by a chain, a rope, a gear mechanism or the like.

[0035]

According to the present invention, as described above, the lock lever is not moved on a plane parallel to the contact surface between the stopper and the stopper receiver, but on an axis parallel to the contact surface. Since the lock and unlock functions are performed by rotating on a perpendicular surface, even if there is an error in the positional relationship between the lock lever and the stopper holder, the amount of rotation of the lever and the contact point will change. Just by doing so, the locking action is ensured.

Therefore, the dimensional accuracy of the stop lock mechanism becomes loose, so that the manufacture and assembly of parts becomes easy,
The lock does not loosen and rattle does not occur, and the lock has high reliability.

According to the second aspect of the present invention, the rotational moment in the unlock direction acting on the lock lever in the locked state can be reduced.

Therefore, the lock holding force of the drive means of the stop lock mechanism is increased so that the lock is not released or the lock is not caused by this rotational moment (for example, when the drive means is a hydraulic cylinder, the cylinder pressure is increased. ) No longer needed.

On the other hand, according to the invention of claim 3, even if the lock holding force of the driving means is lost in the locked state, the locked state can be ensured by the lock urging means. Therefore, the security is high.

[Brief description of the drawings]

FIG. 1 is a sectional view of a stop lock mechanism in a branching device according to an embodiment of the present invention.

FIG. 2 is a partially enlarged view of FIG.

FIG. 3 is a schematic plan view for explaining an outline of the entire branching device.

FIG. 4 is a cross-sectional view of a stop lock mechanism for explaining a conventional technique and its problems.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

[Description of Signs] 2 Moving girders forming a branch track D Roadbed 11 Stopper 12 Stopper receiver 13 Lock lever 15 Horizontal axis serving as a rotation center axis of the lock lever 18 Lock cylinder as drive means 19 Spring as lock urging means

Continued on the front page (72) Inventor Wataru Hashimoto 2-8-3 Hikaricho, Kokubunji-shi, Tokyo Inside the National Railway Technical Research Institute (72) Toshiyuki Ono 2-8-8 Hikaricho, Kokubunji-shi, Tokyo 38 assets Inside the Railway Technical Research Institute (72) The creator Osamu Wakatsuki 2-8-8 Hikaricho, Kokubunji-shi, Tokyo 38 Within the Railway Technical Research Institute (72) The creator Shiro Nagai 2-5 Nishikanda, Chiyoda-ku, Tokyo -2 Japan Transportation Technology Co., Ltd. (72) Katsuhiko Yoshida 1-3-18 Wakihama-cho, Chuo-ku, Kobe Kobe Steel Ltd. Kobe Head Office

Claims (3)

(57) [Scope of request for utility model registration] 1. A railway branching device configured to move a branch track on a track bed between a reference position connected to a reference line and a branch position connected to a branch line. As a stop lock mechanism that stops and locks at the reference position and the branch position, a stopper is provided on the track bed, and a stopper receiver that contacts the stopper is provided on the branch track, and a lock lever is provided on the track bed,
A locking position where the end on the operation point side presses the stopper receiver against the stopper on a plane perpendicular to the contact surface about an axis parallel to the contact surface between the stopper and the stopper receiver; A branching device for a railway, characterized in that the branching device is provided so as to be rotatable between an unlocked position where the portion is detached from the stopper receiver, and a driving unit that rotationally drives the lock lever. 2. The railway branching device according to claim 1, wherein the end of the lock lever at the locking position on the side of the working point, the contact point of the stopper receiver, and the rotation center of the lock lever are orthogonal to the lever rotation center axis. A railway branching device characterized by being substantially aligned on a horizontal line. 3. The railway branching device according to claim 1, wherein the lock lever is provided with lock biasing means for applying a rotational force toward the lock position.