JPH0425362B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reaction plate mounting device for a magnetic attraction type vehicle that travels by utilizing magnetic attraction force.

Recently, in a system of traveling using a linear motor, a traveling method that utilizes the attractive force of magnetic force has been developed.

In other words, this new traveling method involves mounting a vehicle equipped with a linear motor (primary side) on the rail through wheels, and a reaction plate (secondary side) mounted on the rail side facing the linear motor along the direction of travel. A system in which the vehicle is moved forward while being actively pressed against the rail side by generating magnetic attraction between the reaction plate fixed to the rail side on the ground and the linear motor. This made it possible to significantly improve stability.

By the way, reaction plates generally do not consist of a single continuous plate, but consist of a single plate, and these single plates are arranged continuously on the sleeper in the direction of travel.

The sleepers to which the reaction plate was attached were made and used specifically for the reaction plate.

Its structure consists of two mounting stands for placing the reaction plate in the center of a concrete prismatic body, and a laying stand for fixing known rails at both bases of the mounting stand. An insert with threads carved on the inside is embedded in the top surface.

On the top surface of this concrete sleeper that comes into contact with the reaction plate, one end of a fixing device made of, for example, a single rectangular plate is positioned on the top surface of the reaction plate, and a bolt is passed through the plate surface of the fixing device. The structure is such that the reaction plate is fixed by screwing into the sleeper. (For example, JP-A-59-
(No. 179901) This fixing device places the jaws formed on the top of the fixing device on the top surface of the flange of the reaction plate installation part, bolts it to the sleeper, and uses the rigidity of the fixing device to hold down the reaction plate. There is.

Therefore, when the reaction plate repeatedly deforms in the vertical direction as the vehicle passes, a force in the vertical direction acts on the collar of the fixture.

As a result, there is a risk of metal fatigue occurring and damage to the collar of the fixture.

Furthermore, manufacturing a dedicated sleeper to which the reaction plate is attached requires a large amount of expense.

Therefore, if reaction plates could be attached to conventional wooden sleepers, this would be a double advantage as it would reduce costs and reuse wooden sleepers.

The present invention has been made in view of the above points, and an object of the present invention is to provide a method for attaching a reaction plate for a magnetic attraction type vehicle, which fixes the reaction plate to a wooden sleeper.

Embodiments of the present invention will be described below based on the drawings. First, each member used in the embodiments will be explained.

[B] Overall description FIG. 1 shows the entire attachment of a reaction plate by the method of the present invention.

R is a rail, 1 is a reaction plate, 2 is a conventional wooden prismatic sleeper, and 3 is a fastening clip.

[B] Reaction Plate The reaction plate 1 is a plate body formed by bonding, explosive bonding, riveting, rolling, etc. a copper plate, aluminum plate, duralumin plate, etc. to a base material made of a strip-shaped steel plate or the like.

Both legs in the longitudinal direction of the reaction plate 1 are extended members to form leg parts 11, and the ends thereof have flanges 1 facing outward and parallel to the plate surface.
form 2.

[C] Fastening clip The fastening clip 3 is a fixture for the purpose of elastically holding the reaction plate 1. As shown in an enlarged view in FIG. be.

The fastening clip 3 is composed of a mounting portion placed on the upper surface of the sleeper 2, a raised portion extending vertically from the mounting portion, and a jaw portion 32 extending horizontally from the raised portion.

The installation part is a U that is inserted from the bottom of the sleeper 2.
A bolt hole 31 is provided at a position where a bolt 33 is inserted.

The extension height of the raised portion of the fastening clip 3 is approximately equal to the thickness of the flange 12 of the reaction plate 1, and is configured to elastically hold the reaction plate 1 via the raised portion.

[D] Sleepers Sleepers 2 use conventional wooden sleepers.

Next, we will explain how to attach reaction plates to wooden sleepers using each of the above devices.

[B] Laying sleepers Place sleepers 2 at regular intervals on the track bed and fix them.

[B] Installing the reaction plate Place the rails 11 in succession on each sleeper 2,
It is fixed using a known rail fixture.

Next, the reaction plate 1 is mounted on the center part of the sleeper 2 to which the rail R is fixed.

At this time, the joints of each reaction plate 1 are located on the sleepers 2, and at the same time, a gap may be provided between the joints to accommodate thermal expansion.

Once the positions of the rail R and the reaction plate 1 are determined, holes are drilled in the lower part of the left and right flanges 12 of the reaction plate 1, and the U-bolts 33 are inserted therein to enclose the sleepers 2.

Next, after inserting the tip of the U-bolt 33 holding the sleeper into the bolt hole 31 of the fastening clip 3, insert the jaw 32 into the flange 12 of the reaction plate 1.
Place it on top and tighten the bolts to complete the connection.

[C] Function While the vehicle is passing, an external force is applied to the reaction plate 1 in an upward direction.

This force is transmitted to the fastening clip 3 that is holding down the reaction plate 1, and a part of the upright part and the installation part that make up the fastening clip 3 deform.
Dispersed and absorbed.

After the vehicle has passed, when the external force is released, the fastening clip 3 returns to its original shape due to the restoring force of the raised portion.

[D] Other Embodiment 1 (FIG. 3) In the above embodiment, a method of enclosing the sleepers 2 with U-bolts was used for fastening, but it is of course possible to adopt the following method.

That is, the fastening clip 3 is approximately the same width as the sleeper 2 and has a bolt hole 31 in the center portion.
Using a screw nail N whose head is larger than the diameter of the bolt hole 31, screw it into the wooden stake 2 through the bolt hole 31 and fasten it.

[D] Other Embodiment 2 (Figure 4) In addition, as another fastening means, a fastening clip 3 having the same width as the sleeper 2 and having a bolt hole 31 in the center etc. is used, and Above,
Another possible method is to open a through-bolt hole 21 at a location slightly away from the position on which the flange 12 of the reaction plate 1 rests, and then pass the bolt B through the bolt hole 31 of the fastening clip 3 and the through-bolt hole 21 of the sleeper for fastening.

[E] Other Embodiment 3 (Fig. 5) It is also conceivable to adopt the following means as the fastening means.

That is, an enlarged hole 22 whose inside is enlarged is bored in the wooden sleeper 2 at a location slightly away from the position where the flange 12 of the reaction plate 1 is placed.

Then, using a fastening clip 3 that is approximately the same width as the sleeper 2 and has a bolt hole 31 in the center, etc., an anchor bolt A whose tip is enlarged by browning is inserted from the bolt hole 31 to the enlarged hole 22.
The reaction plate 1 is fastened to the sleeper 2 by inserting it into the sleeper 2 and enlarging its tip.

[F] Other Embodiment 4 (FIG. 6) In the above embodiment, a plate having no elasticity was used as the fastening clip 3, but it is also possible to use spring steel for the fastening clip 3.

That is, after placing the end of the fastening clip 3 made of spring steel on the upper surface of the flange 12 of the reaction plate 1, the fastening clip 3 is fastened with a bolt B or the like.

In this case, since the fastening clip 3 has elasticity, more reliable fastening can be performed.

Since the present invention is as explained above, the following effects can be expected.

<B> There is no need to use concrete sleepers exclusively for reaction plates, and reaction plates can be easily attached to conventional wooden sleepers.

Therefore, it becomes possible to install the reaction plate economically.

<B> Wooden sleepers are used where the point section of the track is a rail joint, and the installation method of the present invention is extremely useful for this section.

<C> Sleepers and reaction plates can be easily replaced.

<D> The flange portion of the reaction plate was held down by the flange of a fastening clip, and the fastening clip was directly fastened to a wooden sleeper using bolts or the like.

Therefore, it has become possible to fasten the bolts with a pull-out resistance that can withstand the suction force of the linear motor.

<E> When using spring steel as the fastening clip, the fastening clip 3 has elasticity, so more reliable fastening can be performed.

[f] Since the fastening clip itself has elasticity, it can disperse and absorb external forces acting on the reaction plate.

Therefore, damage to the fastening clip due to metal fatigue can be avoided.

[Brief explanation of drawings]

Fig. 1: Explanatory diagram of the installation method of the present invention, Fig. 2
Figures: Explanatory diagrams of each member, Figures 3 to 6: Explanatory diagrams of other embodiments. 1: Reaction plate, 2: Sleeper,
3: Fastening clip.

Claims (1)

[Scope of Claims] 1. A reaction plate in a track where a flange formed on a leg of a reaction plate is attached to a sleeper so as to be in contact with the ground, and a vehicle equipped with a linear motor runs opposite the reaction plate. A fastening clip with a crank-shaped cross section is integrally formed with a jaw that contacts the top surface of the flange, an installation part that fastens to the sleeper, and an upright part that vertically connects the jaw and the installation part. . A method for attaching a reaction plate, characterized in that the reaction plate is elastically held via the raised portion of the fastening clip.