JPS5910163Y2 - Adhesive insulation joint plate - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an insulating joint plate for bonding a rail and a joint plate with an adhesive.

In signal track circuits, insulating joints are important devices that ensure train running safety.

However, conventionally used insulating joint structures include the following types, each of which has various drawbacks in terms of environment, economy, and strength.

The structure of a normal insulation joint is that the rail joint plate and insulation plate are not bonded, so damage to the insulation plate or loosening of the fastening bolts can easily cause insulation failure, track destruction, and rail breakage. It has a short lifespan, and requires a lot of effort and expense for inspection and maintenance to maintain its properties.

In particular, it is well known that normally insulated joints are a major cause of vibration and noise.

Next, the structure of the bonded insulated rail is such that two short rails are bonded to a joint plate with an adhesive layer that also serves as an insulating layer, and the entire manufacturing process is carried out in a factory.

Therefore, it is necessary to weld the regular rail and the adhesive insulated rail on site, which takes a long time and interferes with normal train operation.

Furthermore, it is essential to transport the welding equipment to the site.

As a result, bonded insulated rails have problems in terms of economy and construction time when installed in ordinary insulated joint sections, and are used only in essential long rail soft road sections.

There are also structures in which the insulating joint plate is glued only at the rail belly, but the upper and lower necks of the rail are not glued and the adhesive layer is thick, making it difficult to withstand large repeated axial forces acting on the rail. There are no drawbacks.

The present invention eliminates the drawbacks of the various structures described above, and provides an adhesive insulating joint plate that can be easily and quickly constructed on-site, can be used immediately after construction, and maintains its performance over a long period of time.

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

Fig. 1 shows an insulating joint plate according to the present invention, in which an insulating layer 2 made of a Hewei resin material is bonded at high temperature to the surface of the joint plate main body 3 that contacts the rail, and the central part of the two surfaces of the insulating layer is bonded. A rail abutting portion insulating layer 4 made of the same material is adhered, and a metallic adhesion reinforcing plate 1 whose surface that contacts the rail is formed with concavities and convexities is adhered to the two surfaces of the insulating layer on the left and right sides of the rail abutting portion insulating layer 4. It has an integral structure with the joint plate main body 3.

Figure 2 shows the details of the adhesive reinforcement plate.
The surface of the rail that comes into contact with the rail is shaped into fine concave and convex portions, the concave portions are filled with adhesive, and the convex portions make point contact with the side surfaces of the rail.

FIG. 3 shows the state in which the insulating joint plate according to the present invention is installed, in which adhesive 11 is filled in the recesses on the surface of the adhesive reinforcing plate 1, which is integrally structured with the joint plate main body 3, and the adhesive 11 is applied to both sides of the rail 6. bolt 7 covered with insulating collar 10 and washer 8
The convex part of the adhesive reinforcing plate 1 makes point contact with the side surface of the rail 6, and the side surface of the rail 6 is bonded with the adhesive 11 filled in the concave part, thereby connecting the rail 6 and the joint plate main body 3. After a certain period of time, an adhesive insulating joint is formed.

2 is an insulating layer. As explained below, the adhesive insulating joint plate according to the present invention has a structure in which the surface of the adhesive reinforcing plate is roughened and the convex portion can transmit the load through point contact between the rail and the insulating joint plate. , it can be used even before the adhesive hardens immediately after assembly, and after the adhesive hardens in the recess, the adhesive reinforcing plate is adhesively supported on the side of the rail in the recess, and the four-part adhesive acts as a wedge, so it can be used on large rails. The structure can withstand axial force.

Therefore, various drawbacks of conventionally used insulating joints can be sufficiently eliminated, and on-site gluing work is simple and construction can be completed in a short time.

If used without adhesive, it becomes a normal insulating joint, and furthermore, as a structure without an insulating layer, it can be used as a reinforcing adhesive fitting for damaged areas of the rail, and for making ordinary joints into low-noise adhesive joints.

When used as a non-adhesive regular joint or a regular insulated joint, filling the recess with a low elasticity material or lubricant has the effect of reducing vibration and joint resistance.

[Brief explanation of the drawing]

Figure 1 is a perspective view of an insulating joint plate according to the present invention, Figure 2a,
b and c are a partial front view, a plan view, and a side view of the adhesion reinforcing plate, and FIG. 3 is a sectional view showing a state in which an insulating joint plate is attached. 1...Adhesion reinforcement plate, 2...Insulating layer, 3
・・・・・・Joint plate body, 4・・・Rail butt insulating layer, 5・・・Bolt hole, 6・・・Rail, 7・・・・Bolt , 8... Washer, 9.
... Nut, 10 ... Insulation collar, 11
······glue.

Claims (1)

[Scope of utility model registration request] An insulating layer is bonded at high temperature to the surface of the joint plate that comes into contact with the rail, a rail abutment insulating layer is bonded to the center of the insulating layer, and a rail and a rail are bonded to the insulating layer surfaces on the left and right sides of the rail abutting insulating layer. The contact surface of the joint plate is shaped into an uneven shape, and a metal adhesive reinforcing plate that can be filled with an adhesive is bonded to the concave portion to form an integral structure with the joint plate main body. An adhesive insulating joint board characterized by contacting and bonding to the rail side surface with an adhesive filled in the recess.