JPH0718604A - Tie plug - Google Patents

Abstract

PURPOSE:To embed a tie plug in a short time by a winding an electric heating wire around the outer peripheral surface of a tie plug body or embedding the electric heating wire close to the outer peripheral wall surface of the tie plug body. CONSTITUTION:A spiral groove 12 is engraved on the outer periphery of a tubular tie plug body 1 and an electric heating wire 2 is wound around along the groove 12. After the tie plug body 1 is embedded in a hole 4 provided in a tie 3 through reaction type epoxide adhesive 5, the electric heating wire 2 is electrified. As a result, the electric heating wire 2 generates heat to promote quickly the hardening reaction of the adhesives 5 and complete the joining of the tie plug in a short time. Thus, the positional defection of the tie plug is eliminated so that the laying and changing operations of a rail can be carried out quickly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embedding plug which is embedded in a hole of a sleeper and used for fixing a screw nail or the like.

[0002]

2. Description of the Related Art In order to screw rail fixing screw nails and the like into a sleeper laid on a train track, a tubular embedding plug having an internal thread engraved on its inner surface is embedded. In addition, when rehabilitating the track, a rod-shaped embedding plug may be embedded in the sleeper so that a new dog nail, such as a previously opened dog nail, can be buried in the sleeper. 65703
Issue).

These embedding plugs are holes made in the sleepers,
It is fixed to the hole marks of dog nails, etc. by a reactive adhesive such as an epoxy adhesive, but it is required that the adhesive hardens and the joining is completed in a very short time on a train track. However, a reactive adhesive such as an epoxy-based adhesive has a slow curing reaction at a low temperature in winter, which hinders rail laying work. Further, if it takes time for the adhesive to harden, the embedding plug may shift during that time, and the embedding plug may not be embedded at a predetermined position.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object thereof is to provide an embedding plug capable of performing an embedding operation of the embedding plug in a short time. To do.

[0005]

In the embedding plug of the present invention, a heating wire is wound around the outer peripheral surface of the embedding plug main body, or the heating wire is embedded near the outer peripheral wall surface of the embedding plug main body. It is characterized by being.

The material of this plug is not particularly limited,
Usually polyethylene, polypropylene, nylon, FR
P and other plastics are preferably used. In addition, in the case of a rod-shaped plug for filling holes such as dog nails,
For example, so-called synthetic wood such as thermosetting resin foam reinforced with long fibers such as glass roving is preferably used.

As the heating wire, a wire that generates heat at several tens of degrees, preferably 40 to 50 degrees, is used.

[0008]

In the embedding plug of the present invention, since there is a heating wire on the outer peripheral surface of the embedding plug body, or in the vicinity of the outer peripheral surface,
When the heating wire is energized, heat is generated to accelerate the curing reaction of the adhesive. Therefore, the joining of the embedding plugs is completed in a short time, there is no displacement of the embedding plugs, and it is possible to quickly perform the laying and replacement work of the rail.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a cutaway front view of a left half portion of an embodiment of the embedding plug of the present invention. In FIG. 1, reference numeral 1 denotes a cylindrical plug body, which is made of polyethylene, polypropylene, nylon, plastic such as FRP, or the like.
A female screw is engraved on the inner surface of the embedding plug body 1 so that a screw nail can be screwed therein, and a spiral groove 12 is engraved on the outer periphery thereof. The heating wire 2 is wound along the groove 12 on the outer periphery to form an embedding plug.

FIG. 2 is a front view of a left half cutaway showing another embodiment, in which the embedding plug body 1a has the same shape as the embedding plug body 1 of FIG. Unlike in FIG. 1, the heating wire 2a is a spiral plug buried near the outer peripheral wall of the plug main body 1a in a spiral shape.

Next, a usage mode of the embedded plug shown in FIG. 1 will be described.

As shown in FIG. 3, the embedding plug body 1 is embedded in a hole 4 formed in a predetermined portion of the sleeper 3 via a reactive epoxy adhesive 5. Next, the heating wire 2 is energized. The heating wire 2 generates heat, and the curing reaction of the reactive epoxy adhesive 5 rapidly progresses. Thus, the work of embedding the embedding plug is completed in a short time.

[0014]

As described above, in the embedding plug of the present invention, the heat of the heating wire causes the adhesive to cure rapidly, and the joining of the embedding plug is completed in a short time. It is possible to quickly perform rail laying and replacement work without deviation. In particular, it greatly contributes to shortening the work of burying the plug in winter.

[Brief description of drawings]

FIG. 1 is a cutaway front view of a left half portion of an embedding plug according to an embodiment of the present invention.

FIG. 2 is a left half cutaway front view of another embodiment.

FIG. 3 is a cross-sectional view showing an embedded state of the embedding plug of FIG.

[Explanation of symbols]

 1,1a embedded plug body, 2,2a heating wire 3 sleepers 5 epoxy adhesive

Claims (1)

[Claims] 1. An embedding plug, characterized in that a heating wire is wound around an outer peripheral surface of the embedding plug body, or the heating wire is embedded near an outer peripheral wall surface of the embedding plug body. .