JP3662987B2 - Seam member for track with insulation member - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a track seam member such as a rail, and more particularly to a track seam member with an insulating member capable of insulating a rail joint.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for connecting rail joints such as railroad tracks, so-called steel rail joint members are used which are provided over both side surfaces of the joint and are fastened by bolts.
[0003]
On the other hand, rails used at installation locations of traffic lights and railroad crossing alarms must be divided into sections to form an electric circuit, and therefore, the track seam member is required to have insulation.
Thus, the track seam member used in the section requiring the insulation of the rail is classified from the track seam member used in the section where the insulation is not required, and is called an insulated track seam member.
[0004]
Since the conventional steel seam member for a track is an electric conductor and cannot be used as it is, for example, as shown in FIG. 5, an insulating member (insulating plate, insulating tube, etc.) together with the track seam members 100, 100 ) 200 has been used together so as to be sandwiched between the joints of the rail 300.
[0005]
However, the steel track joint member as described above is very heavy with a weight of about 14 kg per piece, and because of this weight, the installation workability at the site is poor, and this requires a lot of man-hours. did.
[0006]
In order to solve the above problems, in recent years, the track seam member is formed of a thermosetting resin reinforced with fiber (glass fiber is generally used), and is light in weight and easy to install. Excellent ones have been developed (see Japanese Patent Application Laid-Open Nos. 50-47302 and 7-145601).
[0007]
Also, between the end surfaces of the rail joints, a gap of 10 mm to 15 mm is usually provided, but the rail expands and contracts due to changes in the temperature, and prevents the end surfaces from coming into contact with each other to prevent poor insulation. For this reason, a method has been devised in which an insulating member having the same shape as the cross-section of the rail is sandwiched between the end surfaces of the rail to insulate it (see Japanese Utility Model Publication No. 62-114901).
[0008]
[Problems to be solved by the invention]
However, in the method of insulating by sandwiching the insulating member as described above, the side surface of the insulating member is compressed due to the extension of the rail during actual use, and when the train passes, the rail Breaking occurs at the neck with the smallest cross-sectional area of the insulating member due to deflection, vibration, and impact, and the entire insulating member falls off, causing malfunction of the signal and level crossing circuit breaker due to poor insulation. It was.
[0009]
The present invention has been made paying attention to the above-mentioned problems, and the object of the present invention is to solve these problems and to prevent poor insulation even if a part of the insulating member falls off due to breakage. Therefore, there is provided a track seam member with an insulating member that does not cause a malfunction and does not cause a malfunction of a signal or a crossing circuit breaker.
[0010]
[Means for Solving the Problems]
The track seam member with an insulating member according to claim 1 of the present invention is a track made of a thermosetting resin reinforced by fibers, provided on both sides of a rail joint such as a railroad track. A plate-like insulating member that protrudes from a side surface that is in contact with the rail of the joint member is firmly attached integrally, and the shape of the plate-like insulating member is substantially the same as the cross-sectional shape of the rail, and It is characterized in that the left and right halves are divided into two in the vertical direction from the center .
[0011]
According to a second aspect of the present invention, there is provided a track seam member with an insulating member according to the present invention, wherein the insulating member of the track seam member with an insulating member according to the first aspect is formed integrally with the track seam member. And
[0012]
As the thermosetting resin used for forming the track seam member of the present invention, an unsaturated polyester resin, an epoxy resin, a vinyl ester resin, a phenol resin, or the like is preferable.
[0013]
As the fibers used for reinforcement, glass fiber, aramid fibers, those of the non-conductive acrylic fibers, vinylon fibers, also may be used in combination.
[0014]
As for the form of these reinforcing fibers, a roving, a chopped strand mat, a continuous strand mat, a roving cloth, and the like may be raised, and these may be used in combination.
[0015]
Furthermore, as a synthetic resin that is a material of the insulating member of the track joint member with the insulating member, general-purpose thermoplastic resins such as polyvinyl chloride, polyethylene, polyethylene, and polystyrene, general-purpose resins such as polyamide, polyacetal, and ultrahigh molecular weight polyethylene are used. Engineering resins or super engineering resins such as polyamide imide and polyether ether ketone, and thermosetting resins such as vinyl esters, unsaturated polyester resins, and epoxy resins can be used.
[0016]
When the insulating member is formed integrally with the track seam member, it is preferable to use the same thermosetting resin.
[0017]
In the present invention, the plate-like insulating member can be attached to the track seam member by fixing with an adhesive, mechanical joining by fitting a projection or the like, and means for integrally molding with the track seam member. However, it is not particularly limited to these, and other means may be used as long as it can be firmly fixed.
[0018]
It is preferable that the shape of the plate-like insulating member is substantially the same as the cross-sectional shape of the rail, and the plate-like insulating member is attached to one side of the track seam member provided opposite to the rail, or is vertically You may make it divide into 2 in a direction and attach to the joint member for both track | orbits.
[0019]
[Action]
In the track seam member with an insulating member according to the first aspect of the present invention, the plate-like insulating member is firmly attached integrally to the track joint member so as to protrude from the side surface in contact with the rail of the track seam member . Since the shape of the insulating member is substantially the same as the cross-sectional shape of the rail, and the left and right are divided into two halves in the vertical direction from the central portion, the load that the insulating member repeatedly applies through the rail Even if it is damaged due to fatigue and part of it falls off, the contact between the end surfaces of the rails is prevented, insulation between the rails is maintained, and malfunction of the signal and level crossing circuit breaker is prevented. It is possible.
[0020]
Moreover, in the joint member for a track with an insulating member according to the second aspect of the present invention, since the insulating member is formed integrally with the joint member for the track, the same effect as described above can be obtained and the strength can be further increased. It is strong and can be advantageous in terms of cost without the need for post-installation work.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an example of a track seam member with an insulating member according to the present invention.
In FIG. 1, a track seam member 10 with an insulating member is constituted by a track seam member 11 and an insulating member 12 provided so as to protrude from a side surface 11 a that is in contact with the rail of the track seam member 11. Yes.
Further, on the opposite side of the side surface 11a of the track for the seam member 11 recess 11b to be yield capacity of bolts and nuts is provided.
[0022]
The shape of the plate-like insulating member 12 is substantially the same as the cross-sectional shape of the rail, and its end surface 12a is firmly fixed to the side surface 11a of the insulating member 12 with an adhesive and is integrated.
On the other hand, a member without the insulating member 12 is used as a track seam member (not shown) opposed across the rail.
[0023]
The outer shape of the insulating member 12 is formed in a shape that substantially matches the cross-sectional shape of the rail to be attached.
Therefore, in a state of being clamped and fixed at the joint of the rail, it is considered to be substantially flush with the outer surface of the rail so that an extra load is not required.
[0024]
The track seam member 10 with an insulating member is connected to the side surface over both sides of the rail joint.
That is, for fastening to the rail, the bolt holes 13, 13,... Provided on the side face are passed through the through holes provided in the rail, and the nuts are integrally formed with the symmetrical seam member on the opposite side. This is done by tightening.
[0025]
FIG. 2 is a perspective view showing another example of the track seam member with an insulating member according to the present invention. In FIG. 2, the track seam member 20 with an insulating member is constituted by a track seam member 21 and an insulating member 22 provided so as to protrude from a side surface 21 a that is in contact with the rail of the track seam member 21. Yes.
Further, on the opposite side of the side surface 21a of the track for the seam member 21 recess 21b to be yield capacity of bolts and nuts is provided.
[0026]
The shape of the plate-like insulating member 22 is substantially the same as the cross-sectional shape of the rail, and the half portion obtained by dividing the left and right in the vertical direction from the central portion has its end surface 22 a as the side surface of the insulating member 22. It is firmly fixed to 21a with an adhesive and integrated.
On the other hand, a half portion of the insulating member 22 is firmly fixed to the joint member (not shown) opposed to each other across the rails by an adhesive in the same manner as described above.
[0027]
The outer shape of the insulating member 22 is formed in a shape that substantially matches the cross-sectional shape of the rail to be attached.
Therefore, in a state of being clamped and fixed at the joint of the rail, it is considered to be substantially flush with the outer surface of the rail so that an extra load is not required.
[0028]
The track seam member 20 with an insulating member is connected to the side surface over both sides of the rail joint.
That is, for fastening to the rail, the bolt holes 23, 23,... Provided on the side surface are passed through the through holes provided in the rail, and the opposite side of the symmetrical seam member with the insulating member for the track is provided. It is performed by tightening with a nut integrally.
[0029]
FIG. 3 is a front view showing an example of use of the track seam member with an insulating member of the present invention, and FIG. 4 is a cross-sectional view taken along line AA of FIG.
In FIG. 3 and FIG. 4, the track seam member 10 with an insulating member is attached across both ends of the joint of the rails 1 and 2, but the shape is in a state of facing the rails 1 and 2. It is symmetrical.
[0030]
The track seam member 10 is fastened to the rails 1 and 2 by inserting the insulating member 12 of the track seam member 10 with one insulating member into the gap 1 a provided between the rails 1 and 2, and the track seam member 10. The side surface 11a of the rail 11 is brought into contact with the side surface of the rail, and the bolt holes 13, 13,... This is done by passing through the through-hole 4 provided in the inner side and tightening the joint member for the raceway where the insulating member 12 is not provided with the nut 3a through the washer 3b on the opposite side.
[0031]
The track seam member 10 or 20 with an insulating member of the present embodiment has a length L of 560 mm, a height H of 105 mm, a total thickness T of approximately 55 mm, and currently used steel 50 kgN It is manufactured by molding to have the same shape as that for the mold rail.
[0032]
The track seam member 10 or 20 with an insulating member is molded by impregnating a reinforcing fiber in a liquid thermosetting resin mixed with a curing agent, and heating the reinforcing fiber while guiding the reinforcing fiber to a molding die. It is carried out by drawing it out in the longitudinal direction and curing it and cutting it into a predetermined length.
The bolt hole can be formed by post-processing.
[0033]
The track seam member 10 with an insulating member according to the present invention described in claim 2 or the track seam member 11 or 21 of the track with the insulating member 12 or 22 is integrally formed with each mold. A liquid thermosetting resin mixed with an agent is impregnated with reinforcing fibers, and the reinforcing fibers are heated while being guided to a molding die, pulled out in the longitudinal direction of the die, and then united and cured. be able to.
Further, it is possible to form the insulating member 12 or 22 integrally from the beginning by using a molding die in which the insulating member 12 or 22 is integrated.
[0034]
【The invention's effect】
In the track seam member with an insulating member according to the first aspect of the present invention, the plate-like insulating member is firmly attached integrally to the track joint member so as to protrude from the side surface in contact with the rail of the track seam member . Since the shape of the insulating member is substantially the same as the cross-sectional shape of the rail, and the left and right are divided into two halves in the vertical direction from the central portion, the load that the insulating member repeatedly applies through the rail Even if it is damaged due to fatigue and part of it falls off, the contact between the end surfaces of the rails is prevented, insulation between the rails is maintained, and malfunction of the signal and level crossing circuit breaker is prevented. It is possible.
[0035]
Moreover, in the joint member for a track with an insulating member according to the second aspect of the present invention, since the insulating member is formed integrally with the joint member for the track, the same effect as described above can be obtained and the strength can be further increased. It is strong and can be advantageous in terms of cost without the need for post-installation installation work.
Therefore, it can be suitably used as a track seam member with an insulating member.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a track seam member with an insulating member according to the present invention.
FIG. 2 is a perspective view showing another example of a track seam member with an insulating member according to the present invention.
FIG. 3 is a front view showing an example of use of a track seam member with an insulating member according to the present invention.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a perspective view showing an example of use of a conventional track seam member.
[Explanation of symbols]
1, 2 Rail 3 Bolt 3a Nut 3b Washer 4 Through hole 10, 20 Seam member for track with insulation member 11, 21 Seam member for track 11a, 12a, 21a, 22a Side surface 11b, 21b Recess 12, 22 Insulation member 13, 23 Bolt hole L Length H Height T Thickness

Claims (2)

Plate-like insulation that protrudes from the side of the rail of the joint member for the track made of thermosetting resin, which is provided on both sides across the side of the joint of the rail, such as a railroad track, and is reinforced with fibers The members are firmly and integrally attached, and the shape of the plate-like insulating member is substantially the same as the cross-sectional shape of the rail, and the left and right are half parts divided vertically from the center part. A seam member for a track with an insulating member.   2. The track seam member with an insulating member according to claim 1, wherein the insulating member is formed integrally with the track seam member.

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