JP6713859B2 - Rail flow removal aids - Google Patents

Description

TECHNICAL FIELD The present invention relates to an auxiliary tool used when a so-called rail flow generated in an insulating joint portion of a rail is corrected by a metal cutting saw.

One of means for detecting and notifying whether or not a train is present in a predetermined section on a track is called a track circuit. The track circuit insulates a pair of rails forming a track at a seam at predetermined distances, connects a transmitter for applying a voltage to one end of a conductive section of the pair of rails, and connects the pair of rail conductive sections. The other end is connected to a receiving device such as a traffic signal. Insulation of the rail is performed by interposing a plate-shaped insulating material having the same contour as the cross-sectional shape of the rail and having a thickness of several mm between the end surfaces of the rails facing each other and connecting the rail side surface and the seam. This is often done by interposing a rectangular sheet-shaped insulating material between the plate and the plate.

When a train travels on a seam with an insulating material interposed (hereinafter referred to as an insulation seam part), the end of the rail is slightly crushed by the load of the train. Then, when this operation is repeated, a portion near the surface of the end of the rail is gradually extended in the traveling direction of the train, and a thin plate-shaped scratch called rail flow occurs. When the rail flow becomes large, an event called a bridging that brings the rails insulated from each other through the insulating material into conduction is caused. When the bridging occurs, the current flow in the track circuit is disturbed, the traffic signal does not operate normally, and the operation of the train is greatly hindered.

As a method to prevent the occurrence of entanglement due to rail flow, the conventional method is to carry around a metal cutting saw for rail flow rectification while regularly patrol the insulation seam, and once the rail flow is found, perform manual work. The method of rectifying was used. However, since the saw blade for rail flow cutting is thicker than that for other purposes, unless you are a skilled worker, the saw blade slides on the rail flow and it is quite parallel to the rail end surface. I couldn't make a precise cut. In addition, the force of the force may be mistaken to damage the insulating material with the saw blade.
Therefore, in recent years, instead of a metal cutting saw, a rail flow correction device equipped with a clamp mechanism for fixing to the rail, a disk-shaped cutter, a motor for rotating the cutter, etc. is used to correct the rail flow together with the insulating material. A method has been adopted in which a resin plate is fitted into a notch cut in an insulating material by a cutter, and a protruding portion of the plate is shaved off to repair (see Patent Document 1).

JP, 2008-266915, A

By using the conventional rail rectification device as shown in Patent Document 1, unlike the case of manual work, it is possible to accurately rectify the rail flow without being affected by the skill of the worker. However, the conventional rail trimming device is large and heavy, and needs a generator for rotating the motor when it is used. It is difficult to carry out patrols while carrying such a device, and it also requires personnel. For this reason, in many cases, when the patrol is carried out, the device is not carried, and when the rail flow is discovered, the device is collectively corrected at a later date. However, in such a case, it takes time from the discovery of the rail flow to the correction, and there is a possibility that the bridging may occur during that time. Further, since it takes a relatively long time to carry, install, and remove heavy equipment, it is necessary to restrict train operation in some cases.

The present invention has been made to solve the above problems, and it is easy and accurate to find the rail flow generated in the insulating joint portion of the rail on the spot where it is found, without being affected by the skill of the worker. The purpose is to be able to correct.

In order to solve the above problems, the present invention is a rail flow that can be attached to an insulating joint portion of a rail and can guide a saw blade of a metal cutting saw for correcting the rail flow generated in the insulating joint portion. A rectification assisting device, which is formed in a gate shape capable of straddling the head of a rail by a horizontal portion that extends in the horizontal direction and a hanging portion that extends downward from both ends of the horizontal portion. A pair of base members that are vacantly opposed to each other; a connecting member that connects the pair of base members at the hanging portion; and a base member between one of the pair of base members and the pair of base members. A first roller support member extending to the space and a plurality of straight lines that are arranged at the tip of the first roller support member at predetermined intervals along the extending direction of the horizontal portion and that extend vertically. A second roller that is provided on the other base member and that can rotate in a direction in which the pair of base members are arranged, A plurality of roller supporting members and a plurality of second rollers are arranged at the tip of the second roller supporting member so as to face the first roller, respectively, and the second roller is rotatable about a vertically extending straight line as a rotation axis. And a biasing member that biases the two-roller support member in the direction in which the first roller exists.

The present invention is installed on the insulating seam where rail flow occurs so that the tangent lines contacting the plurality of first rollers are orthogonal to the extending direction of the rail, and the cutting saw is connected to the first roller and the first roller. When applied between the two rollers, the second roller is pushed by the metal-cutting saw and moved slightly toward the other base member, and the saw blade is passed between the first roller and the second roller. Since the biasing member also pushes the second roller at this time, the saw blade is pushed by the second roller and is in contact with the stationary first roller, that is, the saw blade extends in the direction orthogonal to the extending direction of the rail. Can be maintained. Since the saw blade is guided by the first roller and the second roller, even a worker who does not have sufficient skill can accurately correct the rail flow in the direction orthogonal to the extending direction of the rail. You can

In the above invention, the first roller and the second roller may be a continuous body formed by arranging a plurality of annular members in the vertical direction, or an integral structure formed in a columnar shape extending in the vertical direction.
In this way, each tangent line formed by the contact between the first roller and the second roller extends in the vertical direction as shown in FIG. 2, so that the side surface of the saw blade contacts the first roller. It is possible to maintain the state in which the rail is closed, that is, the state parallel to the end surface of the rail. Since the saw blade is guided by the first roller and the second roller, the worker can accurately correct the rail flow so as to be parallel to the end surface of the rail.

Further, in the above invention, a fixing means may be provided which is provided in a part of the pair of base members and is capable of fixing the base member to the rail when the base member is straddled over the rail. Good.
In this case, since it is not necessary to hold the present invention with hands or feet during the correction, the correction work becomes easier.

Further, in the above invention, at least one of the other base member side end of the first roller support member and the one base member side end of the second roller support member is a corresponding base member. It may be recessed in the direction in which exists.
With this configuration, when the present invention is attached to the insulating joint portion of the rail, the insulating joint portion can be looked into through the recess from above the present invention, so that the saw blade can be easily positioned.

ADVANTAGE OF THE INVENTION According to this invention, the rail flow which generate|occur|produced in the insulation joint part of a rail can be easily and correctly rectified on the spot discovered, without being influenced by the skill of a worker.

It is the front view showing the state where it was attached to the rail of the rail flow removal assisting device which concerns on embodiment of this invention. FIG. 2 is a side view of the rail flow removal assisting device of FIG. 1. FIG. 2 is a plan view of the rail flow removal assisting device of FIG. 1. It is the perspective view which showed the state which is correcting the rail flow using the rail flow correction auxiliary tool of FIG. FIG. 7 is a side view showing a positional relationship between a metal cutting saw and a connecting member when correcting a rail flow generated in a curved surface portion between an upper surface and a side surface of a rail head.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing a state where a rail flow removal assisting device (hereinafter referred to as assisting device 1) according to the present embodiment is attached to a rail R, FIG. 2 is a side view thereof, and FIG. 3 is a plan view thereof.
As shown in FIGS. 1 to 3, the assisting device 1 of the present embodiment includes a pair of base members 2, a connecting member 3 that connects the base members 2 and the base member 2, and a base on one side (front side in FIG. 1). It comprises a fixing means 4 provided on the member 2, a saw blade guide mechanism 5 provided over the pair of base members 2, and the like.

As shown in FIG. 1, the base member 2 includes a bar-shaped horizontal portion 21 and a hanging portion 22 extending from both ends of the horizontal portion 21 in a direction orthogonal to the extension direction of the horizontal portion. It is formed in a portal shape (inverted U shape). The material of the base member 2 is not particularly limited, but it is preferable to use plastic from the viewpoint of weight reduction and insulation from the rail.
The lower surface of the horizontal portion 21 is a portion that comes into contact with the upper surface of the rail R when the auxiliary device 1 is attached to the rail R, so that the upper surface of the curved rail R can come into contact without any gap. It is slightly bent.
The distance between the hanging portions 22 is the same as or slightly longer than the width of the rail head portion. That is, the base member 2 has a shape capable of straddling the head of the rail.

As shown in FIGS. 2 and 3, the pair of base members 2 are arranged so as to face each other at a predetermined interval so that the horizontal portions 21 and the hanging portions 22 are parallel to each other.
Hereinafter, the pair of base members 2 may be referred to as one base member 2A and the other base member 2B, if necessary.

The connecting member 3 has a rod shape, and connects the hanging parts 22 and the hanging parts 22 of the pair of base members 2 facing each other. FIG. 1 shows an example in which the screw 31 is screwed into the base member 2 through the screw hole formed in the hanging portion of the base member 2, but the base member 2 is joined by another method such as bonding. Alternatively, it may be formed integrally with the base member 2 in advance.
As shown in FIGS. 2 and 3, a narrowed portion 32 that is thinner than the end portion is formed in the intermediate portion of the connecting member 3.

As shown in FIG. 2, the fixing means 4 of the present embodiment is attached to a hollow box body 41, a rotating body 42 provided from the front to the inside of the box body 41, and a rotation shaft 42 in the box body 41. The magnet 43 and the like are formed.
The rotating body 42 is horizontally arranged in the box body 42, and has a rod-like shaft portion 42 a rotatable about the central axis thereof and a knob portion provided at the tip of the shaft portion 42 extending from the box body 41. 42b. The magnet 43 is attached to the shaft portion 42a of the rotating body 42 so that its center is displaced (eccentric) from the rotating shaft of the rotating body 42 in a direction orthogonal to the rotating shaft. ..
In the fixing means 4 configured in this way, when the knob portion 42b is rotated, the magnet 43 is moved away from the lower surface of the box body (the upper surface of the head of the rail R to which the auxiliary device 1 is attached), or in FIG. It is possible to switch to the state in which the lower surface of the box body 41 shown is approached.

As shown in FIGS. 2 and 3, the saw blade guide mechanism 5 includes a first roller support member 51 provided on one of the base members 2A, a first roller 52 attached to the first roller support member 51, The second roller support member 53 is provided on the other base member 2, and the second roller 54 is attached to the second roller support member 53.

As shown in FIG. 2, the first roller support member 51 extends from above the one base member 2A in a direction opposite to the hanging portion 22 of the one base member 2A, and is a standing portion 51a. The horizontal portion 51b extends from the tip of the standing portion 51a in the direction in which the other base member 2B is present, and the pair of shaft rods 51c attached to the lower surface of the horizontal portion 51b.
The pair of shaft rods 51c are round rods, and are attached so that their axes are oriented in the vertical direction, parallel to the side surfaces of the horizontal portion 21 of the base member 2, and spaced apart from each other by a predetermined distance. Has been. The length of the shaft rod 51c is set such that the lower end thereof is located above the lower surface of the horizontal portion 21 of the base member 2.

The first roller 52 is an annular member, and is inserted into each shaft 51c of the first roller support member 51. Then, the first roller 52 is formed to be long in the vertical direction. Although FIG. 2 shows an example in which the first roller 52 is long in the vertical direction by inserting a plurality of members into the single shaft rod 51c, a single cylindrical roller may be used. Further, if the first roller is formed of a bearing, the rotation becomes smooth and a commercially available product can be used, which is economical.
Further, as shown in FIG. 3, the other end of the first roller 52, which is inserted into the shaft rod 51c, on the side of the other base member 2B is located at the other end than the tip of the horizontal portion 51b of the first roller support member 51. It protrudes in the direction in which the base member 2B exists.
As shown in FIG. 3, the central portion of the horizontal portion 51b of the first roller support member 51, which is located between the first roller 52 and the first roller 52, faces toward the direction in which the standing portion 51a exists. It is dented.

As shown in FIG. 2, the second roller support member 53 extends from above the other base member 2B in the direction opposite to the hanging portion 22 of the other base member 2B, and is a standing portion 53a. In such a manner that the pair of base members 2 can be moved in the direction in which the pair of base members 2 are lined up (the extending direction of the connecting member 3) with respect to the standing portion 53a, on the side where the one base member 2A is present at one end of the standing portion 53a. The movable portion 53b is provided, a pair of shaft rods 53c attached to the lower surface of the movable portion 53b, and a biasing member 53d that biases the movable portion 53b toward the direction in which the one base member 2A exists.
The pair of shaft rods 53c are round rods similar to the shaft rods 51c of the first roller support member 51, and their axes are oriented in the vertical direction and are parallel to the side surfaces of the horizontal portion 21 of the base member 2. In this manner, the first roller support member 51 is attached so as to face each shaft rod 51c.

The second roller 54 is configured similarly to the first roller 52, and is inserted into each shaft rod 53c of the second roller support member 53.
In addition, as shown in FIG. 3, the end portion of the second roller 54, which is inserted through the shaft rod 53c, on the side of the one base member 2A is located on one side of the tip end of the movable portion 53b of the second roller support member 53. It protrudes in the direction in which the base member 2A exists.

As shown in FIG. 3, the central portion of the movable portion 53b of the second roller support member 53, which is located between the second roller 54 and the second roller 54, faces toward the direction in which the standing portion 53a exists. It is dented. As a result, a window 5a is formed between the first roller support member 51 and the second roller support member 53 so that the upper surface of the rail R to which the auxiliary device 1 is attached can be viewed. In the present embodiment, both the horizontal portion 51b and the movable portion 51b are recessed to form the window 5a, but only one of them may be recessed.
Further, as shown in FIGS. 2 and 3, the narrowed portion 32 of the connecting member 3 is located on an extension of a plane passing through the tangents of the pair of first and second rollers 52 and 54.

The auxiliary device 1 of the present embodiment configured as described above has the side surface of each first roller 52 in a state where the auxiliary device 1 is attached to the rail R and is not rectified (not guiding the metal cutting saw). , Abuts on the side surface of each second roller 54. Each tangent line formed by the contact between the first roller 52 and the second roller 54 extends in the vertical direction as shown in FIG. 2, and the plane passing through both tangent lines is the rail as shown in FIGS. It becomes parallel to the end surface Ra of R.

Next, a rail flow correction method using the above-described auxiliary device 1 will be described. FIG. 4 is a perspective view showing a state in which the rail flow is corrected by using the auxiliary device 1, and FIG. 5 shows a rail flow corrected in the curved surface portion between the upper surface and the side surface of the rail head. It is the side view which showed the positional relationship with the metal cutting saw and the connection member at the time of doing.
First, the rail R is patrol while holding the auxiliary device 1 and the metal cutting saw 6. Since the auxiliary device 1 of the present embodiment is small and lightweight, it is possible to perform patrol while carrying it around. When the rail flow is found on the insulating joint J, as shown in FIG. 4, the auxiliary device 1 is hung on the head of the rail R so as to cover the insulating joint J and hang down with the hanging portion 22. Place the rail R so that the head of the rail R is sandwiched by the portion 22.

After mounting the auxiliary device 1 on the rail R, the saw blade 61 of the gold cutting saw 6 is passed between the first roller support member 51 and the second roller support member 53. When the saw blade 61 is pressed against the first roller 52 and the second roller 54 as it is, the second roller 54 moves toward the direction in which the other base member 2B exists, and the saw blade 61 moves the first roller 52 and the second roller 54. It comes into contact with the head of the rail R through the gap between 54 and. In this state, while looking into the window 5a, the position of the auxiliary device 1 is finely adjusted so that one side surface of the saw blade 61 contacting the first roller 52 matches the end surface Ra of the rail R (root of the rail flow). To do. After the position of the auxiliary device 1 is determined, the knob 42b of the fixing means 4 is turned so that the magnet 43 inside approaches the rail R. Then, the adjustment tool 1 is strongly attracted to the rail R by the magnetic force of the magnet 43, and the auxiliary tool 1 is fixed on the rail.

After fixing the auxiliary device 1 to the rail R, the metal cutting saw 6 is ground to correct the rail flow. Even while the saw blade 61 moves back and forth between the first roller 52 and the second roller 54, the second roller 54 is urged toward the first roller 52, so the saw blade 61 is It is possible to maintain a state in which one side surface of the rail R is pressed by 54 and is in contact with the stationary first roller 52, that is, a state parallel to the end surface Ra of the rail R. Since the saw blade 61 is guided by the first roller 52 and the second roller 54, even a worker who does not have a sufficient skill can accurately correct the rail flow parallel to the end surface Ra of the rail R. be able to.

When the rail flow also occurs on the curved surface between the upper surface and the side surface of the head of the rail R, as shown in FIG. The gold cutting saw 6 is ground in a state of being inclined by about 45° with respect to. Since the correction of the rail flow formed in such a place requires a technique more than the correction of the one generated on the upper surface of the rail R, the gold cutting saw 6 is used to manually cut the insulating material I on the other side of the rail flow. It is easy to get hurt.

However, in the assisting device 1 according to the present embodiment, the rollers 52 and 54 are formed to be long in the vertical direction. Therefore, even if the saw blade 61 is inclined, the side surface of the saw blade 61 is parallel to the end surface Ra of the rail R. Can be kept Further, the connecting member 3 is present between the hanging parts 22 of the pair of base members 2, and the narrowed part 32 thereof passes through the tangents of the pair of first and second rollers 52, 54. Since it is located on the extension of the plane, the narrowed portion 32 comes into contact with the inclined saw blade 61 and functions as a stopper for restricting the saw blade 61 from further inclining. Therefore, it is possible to prevent the insulating material I from being damaged by the saw blade 61.

As described above, since the auxiliary device 1 of the present embodiment is small and lightweight, it is possible to carry out a patrol while carrying it and to carry out on-the-spot correction as soon as the rail flow is discovered. Further, by using the auxiliary tool 1 of the present embodiment, no matter what skill the worker performs, it is possible to perform accurate correction in parallel with the end surface Ra of the rail R. Further, by frequently correcting the rail flow using the auxiliary device 1 of the present embodiment, it becomes unnecessary to carry out a full-scale repair using a large-scale device.

Although the present invention has been specifically described above based on the embodiment, the present invention is not limited to the above embodiment and can be modified within the scope of the invention.
For example, in the above embodiment, the standing portions 51a and 53a are provided, and the shafts 51c and 53c and the rollers 52 and 54 are supported from above (the horizontal portion 51b and the movable portion 53b), but the standing portions are provided. Alternatively, members corresponding to the horizontal portion 51b and the movable portion 53b may be directly provided on the side surface of the horizontal portion 21 of the base member 2 to support the shafts 51c and 53c and the rollers from below.
Further, in the above embodiment, the first and second roller members 51 and 53 are separate members from the base member 2, but they may be formed integrally with the base member 2.

Further, in the above embodiment, the magnetic force is used for fixing, but for example, one hanging portion 22 of the base member 2 is provided with a screw hole penetrating in the direction in which the other hanging portion 22 exists, Clamp-type fixing means may be provided by screwing a threaded rod.

1 Rail Flow Cutting Aid Device 2 Base Member 21 Horizontal Part 22 Hanging Part 3 Connecting Member 31 Screw 32 Narrowing Part 4 Fixing Means 41 Box Body 42 Rotating Shaft 43 Magnet 5 Saw Blade Guide Mechanism 5a Window 51 First Roller Supporting Member 51a Standing Installation portion 51b horizontal portion 51c shaft rod 52 first roller 53 second roller support member 53a standing portion 53b movable portion 53c shaft rod 53d biasing member 54 second roller 6 cutting saw 61 saw blade R rail J insulating joint I Insulating material

Claims (4)

A rail flow correction auxiliary device that can be attached to an insulating joint portion of a rail and can guide a saw blade of a metal cutting saw for correcting a rail flow generated in the insulating joint portion,
A pair of horizontally-extending horizontal parts and a hanging part extending downward from both ends of the horizontal part are formed in a gate shape capable of straddling the head of the rail, and are arranged to face each other at a predetermined interval. A base member,
A connecting member that connects the pair of base members at the hanging portion;
From one base member of the pair of base members, a first roller support member extending to the space between the pair of base members,
A plurality of first rollers, which are arranged at the tip of the first roller support member at predetermined intervals along the extending direction of the horizontal portion, and each of which is rotatable about a straight line extending vertically as a rotation axis,
A second roller support member which is provided on the other base member and is movable between the other base member and the first roller in a direction in which the pair of base members are arranged,
A plurality of second rollers, each of which is arranged at the tip of the second roller support member so as to face the first roller, and is rotatable around a vertically extending straight line as a rotation axis,
A biasing member for biasing the rail flow, comprising: a biasing member that biases the second roller support member in a direction in which the first roller exists. The first roller and the second roller are a continuous body formed by arranging a plurality of annular members in the vertical direction, or an integral structure formed in a columnar shape extending in the vertical direction. Rail flow removal aids. 2. A fixing means, which is provided on a part of the pair of base members and is capable of fixing the base member to the rail when the base member is straddled over the rail. The rail flow correction auxiliary device described in 2. At least one of the other base member side end of the first roller support member and the one base member side end of the second roller support member is recessed in the direction in which the corresponding base member exists. The rail flow removal aid according to any one of claims 1 to 3, wherein the rail flow removal aid is provided.

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