JP2000064201A - Crosstie for protecting cable and connecting structure thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure screw nail tightening force when a tightening device such as a tie plate is mounted by fixing square timber along a longitudinal direction on the lower part of a side surface of a crosstie main body and forming a cable mounting part along an upper surface of square timber. SOLUTION: In a crosstie for protecting cable 1, square timber 12, 12 made of the same material as that of a crosstie main body 11 are fixed with adhesive along a longitudinal direction on the lower parts of both side surfaces of the crosstie main body 11 made of glass fiber reinforced hard foaming polyurethane and cable mounting parts 2, 2 are formed along the upper surfaces of the square timer 12, 12. Therefore, because a width W of an upper surface of the crosstie 11 is secured in the crosstie 1, screw nail tightening force is secured when a tightening device such as a tie plate is mounted. Because a cable can be wired so as to be stored on the cable mounting part 2 when the crosstie 1 is laid on a ballast in a branching part of a track rail, the cable is not damaged also when the ballast is required to be tamped by a tamper for an adjustment of a track level.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable protection sleeper in which a cable placing portion is formed and a connection structure thereof.

[0002]

2. Description of the Related Art Conventionally, a track rail of a rail car is supported,
As sleepers for distributing the load on the roadbed, wooden ones have been used for a long time, but recently, sleepers made of reinforced concrete are often used. However, since sleepers made of reinforced concrete and the like are heavy, there is a problem in that they have poor transportability to a laying site where the scaffolding is poor, and handleability when laying on a roadbed. In view of this point, sleepers have also been used.

On the other hand, conventionally, at the branch portion of the track rail, cables such as signal cables and cables for snow-melting heaters have been laid along the sides of the sleepers. Since it will sink, it is sometimes necessary to tamper the ballast with a tamper etc. to adjust the track level, but at this time it is necessary to provide a cable mounting part that does not damage the cable laid along the side of the sleeper. is there.

As a sleeper used for such a branch portion,
In order to manufacture the cable mounting portion on the sleeper, a rectangular sleeper is manufactured once as shown in FIG. 6A, and both upper edge portions of this sleeper are manufactured as shown in FIG. 6B. Was cut to form the cable storage portions a, a. Therefore, the width of the upper surface of the sleeper becomes narrow, and when attaching a fastening device such as a tie plate, the screwed position is close to the edge of the sleeper,
The screw nail fastening force sometimes became a problem.

Further, in the case of the adjoining double track, it is necessary to use a long sleeper at the scissor crossing (scissors crossing or double crossover) portion, but it is not possible to manufacture a sleeper of a required length in advance. It is possible, but since the weight becomes large, it is more efficient to connect and use a plurality of them in the field.

[0006]

SUMMARY OF THE INVENTION The present invention solves the problems of the conventional sleepers and secures a screw nail fastening force when attaching a fastening device such as a tie plate, and a long sleeper. The purpose of the present invention is to provide a connection structure for a sleeper for cable protection in the case where the above is required.

[0007]

According to a first aspect of the present invention (invention 1), a lumber is fixed to a lower part of a side surface of a sleeper body along a longitudinal direction, and a cable is mounted along an upper surface of the lumber. It is a sleeper for cable protection in which a storage part is formed.

The invention according to claim 2 of the present application (invention 2)
Using a plurality of cable protection sleepers according to the first aspect of the present invention, the ends of the sleepers main body are connected in a butt state such that the ends of the above-mentioned lumber face each other. It is a connection structure for cable sleepers.

The invention according to claim 3 of the present application (invention 3)
Was attached to the lower part of the side of the sleeper body, leaving the end, but the ends of the cable protection sleeper with the timbers fixed along the longitudinal direction were butted against each other, and connected with a connecting tool so as to straddle both ends. A connecting structure for a cable protection sleeper, wherein the connecting tool comprises a pair of U-shaped connecting tool bodies provided with flanges outside both ends of the connecting tool body. Straddle both ends of the cable protection sleeper,
Both flange parts are fastened together so that the flange part is sandwiched so as to project to the side of the cable protection sleeper, and along the upper surface of the square bar and the upper surface of the flange part of the connector, a cable placement part along the longitudinal direction is provided. It is a connection structure for the formed sleepers for cable protection.

In the present invention, as the material of the sleeper body,
For example, if glass fiber reinforced rigid polyurethane foam is used, light weight, high strength, and long life (for example, about 5 times that of wood for 10 years) can be obtained. For example, a suitable adhesive such as two-component epoxy resin is used. By doing so, the joint can be expected to have substantially the same strength as the base material, which is preferable.

In the present invention, the same material as the sleeper main body is preferably used as the timber. As a method of fixing the timber to the lower side surface of the sleeper body, for example, a nail, a wood screw, a coach screw or the like can be mechanically fixed, but a method of fixing with an adhesive is simple and preferable. .

[0012]

In the cable protection sleeper according to the present invention 1, the lumber main body is formed by fixing the square bar along the longitudinal direction to the lower side surface of the sleeper main body and forming the cable mounting portion along the upper surface of the square bar. Since the width W of the upper surface of the sleeper is secured, the strength of the sleeper main body is improved by the timber, and the screw nail fastening force is secured when the fastening device such as the tie plate is attached,
Also, when installed on the roadbed at the branch of the track rail, it is possible to wire the cable so that it will be stored on the cable mounting part, so it is necessary to tamper the ballast with a tamper or the like to adjust the track level. Even if there is no damage to the cable.

The connection structure for the cable protection sleeper of the present invention 2 is in a butt state such that the ends of the main body of the cable protection sleeper of the present invention 1 are opposed to each other so that the ends of the lumber face each other. Because of the connection, when laying on a wide roadbed such as a shisa crossing section in the case of adjacent double tracks, it is possible to arrange the cables so that they can be stored on the cable placing section continuous in the longitudinal direction. Even if it is necessary to tamper the ballast with a tamper to adjust the track level, the cable will not be damaged.

In the connection structure of the cable protection sleeper according to the third aspect of the present invention, as the connection tool, one having a pair of U-shaped connection tool bodies provided with flanges outside both ends thereof is used. , The both ends are fastened to each other by straddling both ends of the cable protection sleeper with the connection tool and sandwiching the flange portion so as to project to the side of the cable protection sleeper, and the upper surface of the timber and the connection tool Since the cable mounting part along the longitudinal direction is formed along the upper surface of the collar part of the cable, when the cable is laid on a wide roadbed such as a shisa crossing part in the case of adjacent double lines, the cable is Since the wiring can be stored so as to be stored on the continuous cable mounting portion, the cable is not damaged even when it is necessary to tamper the ballast with a tamper or the like for adjusting the track level.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a cable protection sleeper of the present invention. As shown in FIG. 1, the cable protection sleeper 1 includes a timber 12 made of the same material as the sleeper main body 11 along the longitudinal direction at the lower portions of both sides of the sleeper main body 11 made of glass fiber reinforced rigid foamed polyurethane.
12 are fixed by an adhesive, and the cable mounting portions 2 and 2 are formed along the upper surfaces of the square members 12 and 12.

This cable protection sleeper 1 comprises a sleeper body 1
The width W of the upper surface of 1 is secured, and the screw nail fastening force is secured when a fastening device such as a tie plate is attached. When laying on the roadbed at the branch part of the track rail, it is possible to wire so that the cable can be stored on the cable mounting part, so it is necessary to tamper the ballast with a tamper etc. to adjust the track level. However, it does not damage the cable.

FIG. 2 is an explanatory view of an example of a connecting structure for a cable protection sleeper according to the present invention, in which (a) is a plan view thereof.
(B) is the front view, (c) is the side view. Figure 2
As shown in (a) to (c), the ends of the sleeper bodies 11, 11 'of the cable protection sleepers 1, 1'shown in FIG.
They are butted so as to have a joining surface diagonally along the longitudinal direction, and are fastened by two rows of fasteners so as to penetrate vertically between the ends. Reinforcing plates 13 are provided on the upper surface side and the lower surface side of the joint surface between the ends of the sleeper main bodies 11, 11 ', respectively. The ends of the square members 12 and 12 'are arranged so as to face each other. As a result, a cable protection sleeper connection structure is provided which has the cable placement portion 2 continuous in the longitudinal direction along the upper surfaces of the square members 12 and 12 '.

When the connection structure for this cable protection sleeper is laid on a wide roadbed such as a shisa crossing portion in the case of adjacent double tracks, the cable is stored on the cable placing portion 2 continuous in the longitudinal direction. Therefore, even if it is necessary to tamper the ballast with a tamper for adjusting the track level, the cable will not be damaged.

3 to 5 are explanatory views of another example of the connection structure of the cable protection sleeper of the present invention. The connection structure of the cable protection sleeper of this example includes the cable protection sleepers 3 and 3'shown in FIG. 3 and the connection tool 4 shown in FIG.

As shown in FIG. 3, in the cable protection sleepers 3 and 3 ', square members 32 and 32' are fixed along the longitudinal direction of the sleeper main bodies 31 and 31 'along the longitudinal direction except for the end portions. Made of one, these cable protection sleepers 3,3 '
The ends of the rectangular members 32, 32 'on which the square members 32, 32' are not provided are butted against each other, and are connected by a connecting tool described later so as to straddle these ends.

As shown in FIG. 4, the connecting tool 4 is composed of a pair of U-shaped connecting tool bodies 41, each of which is provided with a flange 42 on the outside of both ends thereof.

As shown in FIG. 5, a pair of connecting tool bodies 41 of the connecting tool 4 straddle both ends of the sleeper bodies 31, 31 'of the cable protecting sleepers 3, 3', and the collar portion 42 has the brim portion 42. The brim portions 42 are fastened together by fasteners 43 so as to be sandwiched so as to project laterally from 3, 3 ′.
The connector main body 41 is fixed to both ends of the sleeper main bodies 31, 31 ′ with screws 44. This allows the timber 32, 32 '
Along with the upper surface of the cable and the upper surface of the collar portion 42 of the connector 4, a cable-protective sleeper connection structure is provided which has cable mounting portions 5 and 5 continuous in the longitudinal direction on both sides.

When the connection structure for this cable protection sleeper is laid on a wide roadbed such as a shisa crossing portion in the case of adjacent double tracks, the cable is stored on the cable placing portion 5 continuous in the longitudinal direction. Therefore, even if it is necessary to tamper the ballast with a tamper for adjusting the track level, the cable will not be damaged.

[0024]

Since the cable protection sleeper of the present invention 1 is configured as described above, the strength of the sleeper main body is improved,
The screw nail fastening force when attaching a fastening device such as a tie plate is secured, and when laying on the roadbed at the branch part of the track rail, it is possible to wire so that the cable is stored on the cable mounting part. it can.

Since the connection structure for the cable protection sleeper of the second aspect of the present invention is as described above, when the cable is laid on a wide roadbed such as a shisa crossing portion in the case of adjacent double tracks, the cable is longitudinally aligned. The wiring can be arranged so as to be housed on the cable mounting portion continuous with the above.

Since the connection structure of the cable protection sleeper of the third aspect of the present invention is as described above, when the cable is laid on a wide roadbed such as a shisa crossing portion in the case of adjacent double tracks, the cable is longitudinally aligned. The wiring can be arranged so as to be housed on the cable mounting portion continuous with the above.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a cable protection sleeper of the present invention.

FIG. 2 is an explanatory view showing an example of a connection structure for a cable protection sleeper of the present invention, (a) is a plan view thereof, (b) is a front view thereof, and (c) is a side view thereof.

FIG. 3 is a perspective view showing a cable protection sleeper used in the connection structure for the cable protection sleeper of the present invention.

FIG. 4 is a side view showing a connector used in the connection structure for the cable protection sleeper of the present invention.

FIG. 5 is a perspective view showing another example of the connection structure of the cable protection sleeper of the present invention.

6A and 6B are explanatory views of a process of manufacturing the conventional cable placing portion on the sleeper, FIG. 6A is a side view showing the sleeper before the cable placing portion, and FIG. 6B is a view after providing the cable placing portion. It is a side view which shows a sleeper.

[Explanation of symbols]

Sleepers for 1,1 ', 3,3' cable protection 2,5 cable holder 4 connection tools 11, 11 ', 31, 31' Sleeper body 12,12 ', 32,32' Square bar 13 Reinforcement material 41 Connection tool body 42 collar part 43 Fastener

Claims (3)

[Claims] 1. A sleeper for protecting cables, characterized in that a lumber is fixed to a lower part of a side surface of a sleeper body along a longitudinal direction, and a cable mounting portion is formed along an upper surface of the lumber. 2. A plurality of the cable protection sleepers according to claim 1 are used, and the ends of the sleepers main body are connected in a butt state such that the ends of the lumber face each other. Connecting structure for cable protection sleepers characterized by being 3. The end portion is left below the side surface of the sleeper body,
A connection structure for a cable protection sleeper in which ends of cable protection sleepers to which timbers are fixed along the longitudinal direction are butted against each other and are connected by a connecting tool so as to straddle both ends, wherein the connecting tool is , A pair of U-shaped connecting tool main bodies having flanges provided on the outer sides of both ends of the connecting tool body, the connecting tool straddling both ends of the cable protection sleeper, Both flanges are fastened to each other so as to project to the side of the cable protection sleeper, and along the upper surface of the square bar and the upper surface of the flange of the connector, a cable placing portion along the longitudinal direction is formed. Connection structure for cable protection sleepers, characterized by being