JP2000230202A - Joint for rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the structure of a joint nonexisting in the past by connecting two opposite rails forming the joint practically as one rail as far as the transit of wheels is concerned by some method while securing an inevitable expansion gap. SOLUTION: The head sections of opposite rails 1, 2 are shrunk in width at a fixed ratio over the fixed and same length from end sections at the end sections, they are slidably fitted, the head sections of the rails 1, 2 are integrated at a slide section 10 to complete the normal head section width of one rail in this region, then the rails 1, 2 forming the slide section 10 are slid in opposite directions to each other to keep gaps 3, 4 between the rails 1, 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION In the present invention, a gap called a play is provided at a joint of a rail in order to cope with expansion and contraction caused by a temperature difference between rails. In addition to the drawback that the wheel hits the head end of the rail, vibration and noise cause various problems. The seam of the rule.

[0002]

2. Description of the Related Art In order to reduce the seam which is a weak point of a rail, a so-called long rail which is larger than a standard length of the rail.
A passive method such as using a rail, or the shape of each end of the opposing rail, for example, obliquely crossing each end face of the opposing rail, or one of the ends of the rail. The shape of the cut edge is formed in a chevron shape, and a cut edge having a shape similar to the shape in which the other end of the other rail is received so as to maintain a constant gap with each part of the chevron end. By
Both rails forming a seam with the load when the wheel passes through the play
Have been devised so that they can receive them together,
Long rails have the disadvantage of requiring so-called receiving rails and tongue rails for installing special telescopic seams and of requiring special labor for transportation and installation. Also, by making the cut edge at each end of the two opposing rails special,
Both rails forming a joint between the wheel load when the wheel passes through the play
In this method, the load imposed during the idle passage is inevitably uneven because of its structure, and the imbalance in the load continues until the wheels complete the idle passage. That said, the weaknesses of the rail joints still exist, and the invention of a novel rail joint that never connected two rails to one rail. I can't say it.

[0003]

Although it is indispensable to provide a gap called a gap at a rail joint, it is necessary to devise a structure for converting the direct influence of the gap from the joint to another. In order to be able to absorb the effect of the seam into the structure itself, the two opposite rails that make up the seam are essentially one rail in some way. We must invent a novel seam configuration that will lead to It is an object of the present invention to invent a seam structure for forming an epoch-making rail seam based on such an idea.

[0004]

(A) At each end of one of two opposing rails and one of the other rails,
The head width of each of the rails is reduced and slid in contact with each other at a fixed ratio from each of the end portions to each of the same length, and the head of each of the rails at the slidable portion. After forming an area formed so as to complete the normal head width of one rail in a combined form, the rails forming the sliding portion are slid in the opposite direction. This keeps the gap created between the ends of the rail. (B) Two rails constituting the sliding portion described in (a) above.
Since the slidable length of the rail is necessarily ensured by the gap described in (a) above, the role that the indispensable play at the joint of the rail should play is ensured by this. (C) Since the two opposing rails have an area where they slide on each other, they are substantially connected to one rail through the sliding part. By having a seam configuration, the play which is indispensable to the conventional rail seam can be eliminated. As described above in (a), (b), and (c), it has been clarified that the object of inventing a seam structure for forming a breakthrough rail seam has been achieved.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings.

FIG. 1 shows two opposing rails 1 and 2 formed from each end of each rail to a fixed width and a half width of the head width of each rail. After the portions 5 and 6 are formed so as to have the sliding portions 8 slidably slid with each other, the rails forming the sliding portions are slid in directions opposite to each other, thereby forming the rails. This is a rail joint formed by holding gaps 3 and 4 generated between the ends of the rail. The rail 1 and the rail 2 share the head width of each rail with each other at the sliding portion 8, and the two rails are combined to form a single normal rail.
Rail 1 and rail 2 are connected by forming a rail width. In this case, the slidable length of the sliding portion of the two rails is 7
Is secured by the gaps 3 and 4, so that despite the fact that rails 1 and 2 each have a play which plays an essential role in the seam, a substantially seamless rail It becomes. However, in this case, the gap 3
It is believed that the effects of (4) and (4) exist to a considerable extent. Therefore, we have taken one step further while completing the same steps as the ideas that led to the invention of such a rail joint.

FIG. 2 shows.

FIG. 2 shows two opposing rails 1 and 2
But the

As in the case of FIG. 1, each rail is formed so as to have a normal width of one rail head by forming sliding portions which are slidable with each other. The ratio of sharing with each other is 1
It is configured such that there are two pairs of sliding parts that can be slid with each other. That is, these are the locations indicated by 10 and 11 in the figure. The ratio of 3: 1 for sharing the width of each rail head with each other is shown in FIG.
Although the same is shown in FIG. 4, it is necessary that the two parts to be formed be provided with two slidable sliding parts so as not to lose the balance on both sides of the rail. , As shown in the figure. After making two slidable portions that can slide with each other,

As described with reference to FIG. 1, when two opposing rails are slid in opposite directions, there are three gaps as shown in FIGS. 3, 4 and 9. In this case, the slidable lengths of the sliding portions 10 and 11 are the gaps 3 and 4.
And 9 ensure the essential so-called play role at the rail joint. When the wheel passes through the gap 9, the load on the wheel is one quarter of the rail head width.
The width is equally received on both sides of the rail, and the effect when passing through gaps 3 and 4 is also described.

It is clear that the number is significantly reduced as compared with the case of FIG. 1, and the two rails facing each other are substantially connected to each other through each sliding portion to form one rail. , There will be no gap as far as the wheel passes. Therefore, a structure is formed that forms a seam that is connected to a single rail with no gap, while maintaining the play function corresponding to the expansion and contraction of the rail due to the cold and warm weather.

[0006]

Since the present invention has the structure formed as described above, the following effects are realized. That is

As shown in FIG. 2, the opposed rails 1 and 2 are substantially connected through sliding parts 10 and 11 which can slide with each other. In this sense, there is a gap between them. A seam that does not have is formed. The sliding portions 10 and 11 are both places where the rails 1 and 2 are formed so as to be slidable with each other, and their slidable lengths are defined by gaps 3 and 9 respectively. And 4, the structure can sufficiently cope with the expansion and contraction of the rail due to the cold and warm weather. Therefore, it also has a role to be played by a so-called playroom, which is indispensable to the conventional rail joint. In summary, the gaps, or gaps, which were conventionally indispensable at the joints of the rails when passing the train wheels, greatly reduced various adverse effects on both the wheels and the rails. You have a new rail joint that you can do. This is the epoch-making effect of the present invention.

[Brief description of the drawings]

FIG. 1 is a plan view for explaining the configuration of a portion forming a joint between two rails facing each other.

FIG. 2

FIG. 1 is a plan view for explaining another embodiment which is based on the same inventive concept as the case of forming the rail joint shown in FIG. 1, but further enhances its effect.

[Explanation of symbols]

1. One rail opposing a rail seam 2 The other rail opposing a rail seam
3 A gap generated during the formation of a rail joint. 4 Same as above. 5 Two rails are slidably slid and share the width of each rail head at a fixed rate. 6 The same length as above 7 Same as above 7 The length of sliding between two rails sliding on each other 8 Sliding part between rail 1 and rail 2 9 When forming rails Gap 10 formed 10 Sliding portion between rail 1 and rail 2 11 Same as above 12 When gap 9 is formed, a part of one-third the width of the head of rail 1 and the head of rail 2 13 A gap formed between a portion having a width equal to one third of the width of the rail 13 Rail 2 at a sliding portion between rail 1 and rail 2
1/4 of the head width that is shared by the rails 14 Rail 1 at the sliding portion between Rail 1 and Rail 2
3/4 head width part which is shared by 15 rail normal head width

Claims (1)

[Claims] At each end of one of two opposing rails and one of the other rails, each of the rails extends from the end to a predetermined length. The rail head width is reduced to one another in accordance with a certain ratio, and the rails are slid on each other, and the head of each rail at the slidable portion is combined with the normal head of one rail. After creating the area formed to complete the width, the gaps formed between the ends of the rails are maintained by sliding the rails forming the attachment in opposite directions. In other words, by providing a structure in which the slidable length of the two rails constituting the attachment portion is necessarily secured by the gap, the role that the indispensable play at the seam of the rail should play Despite the fact that the two rails are practically secured, the two opposing rails form a single rail with substantially no gap through the sliding portion. Rail joints with a structure that allows them to be connected.