JP3564678B2 - Crossing rail structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a crossing rail structure in a turnout of a railway line, and more particularly to a crossing rail structure that can be made compact while having a movable wing rail.
[0002]
[Prior art]
As shown in FIG. 13, the turnout 100 of the railway line includes a right basic rail 101, a left basic rail 102, a right main rail 103, a left main rail 104, a right tong rail 105, a left tong rail 106, a right lead rail 107, A left lead rail 108 is laid and a branch line is branched from a reference line. A crossing rail 110 is used at an intersection of the reference line and the branch line, and each main rail is located at a position facing the crossing rail. Guard rails 109 are provided on the inside, respectively.
The crossing rails are roughly classified into fixed crossings in which all rails are fixed, and movable crossings in which some rails are movable according to conversion.
[0003]
As shown in FIG. 14, the fixed crossing is configured such that a right wing rail 111 and a left wing rail 112 are arranged and fixed to face each other, and a nose rail 113 is arranged and fixed between the rear end wing rails. Spacing members 114 are arranged between the wing rails and between the wing rails and the nose rail, and the rails are fixed at regular intervals.
According to the above-mentioned fixed crossing, a track gap is formed between the wing rail on which the wheel travels and the nose rail due to its structure, and thus has the following drawbacks (1) to (3).
{Circle around (1)} A guardrail 109 (FIG. 13) for preventing entry of a different line is required, and a lateral lateral pressure is generated against the guardrail, so that the train passing speed is limited.
{Circle around (2)} When a wheel is transferred between the wing rail and the nose rail, a transfer impact is generated, and a long use of the wheel causes a fall and abrasion.
(3) If the wing rail or nose rail falls and wears, noise and vibration are generated when the train passes.
[0004]
On the other hand, the movable crossing, in which some rails are movable according to conversion, eliminates the gap between the gauge lines mentioned above, so that the wheel transfer between the wing rail and the nose rail is smooth, and it is used for a long time The structure does not cause wear due to the fall of the wheels. The movable crossing includes a nose movable crossing having a movable nose rail and a wing movable crossing having a wing rail movable.
[0005]
As shown in FIG. 15, the nose movable crossing has a structure in which a movable nose rail 114 is turned and adhered to each of the wing rails 111 and 112 in order to eliminate a broken portion between the nose rail and the wing rail. The movable nose rail 114 is connected to a lower end of the movable nose rail 114 in a direction intersecting the rail, and the position of the movable nose rail 114 is changed by the conversion operation.
In the nose movable crossing, a swivel end 116 having a rotating portion and a sliding portion is provided on the rear end side to facilitate the switching operation of the movable nose rail 114, so that the crossing length is longer than the fixed crossing. However, there is a disadvantage that the existing fixed crossings cannot be exchanged unless the skeleton of the switch, which is determined by the total length of the switch and the train entry angle, is changed.
[0006]
The wing movable crossing was developed in order to solve the above-mentioned drawback of the nose movable crossing. As shown in FIGS. 16 and 17, in order to eliminate a broken line between the nose rail and the wing rail, the movable wing rail 117 is used. Are converted and come into close contact with or separate from the nose rail 113. The movable wing rail 117 has an end portion 118 on the front end side fixed, and forms an elastic portion 120 (see FIG. 18A) formed by cutting a rail bottom portion 119 inside the end portion 118. Therefore, by changing the vicinity of the end on the rear end side of the movable wing rail 117 using a conversion rod (not shown), the elastic portion 120 is bent so that the position on the rear end side changes with respect to the nose rail 113. (See FIG. 17).
[0007]
According to the above-mentioned wing movable crossing, the structure of the rear end side of the crossing is the same as that of the fixed crossing. Therefore, the entire laying structure of the branching device is compatible, and replacement with the fixed crossing is also possible.
[0008]
[Problems to be solved by the invention]
However, according to the wing movable crossing, as shown in FIG. 16, since the wheels travel on the entire front end side on the movable wing rail 117, the deflection of the elastic portion 119 cannot be increased. In addition, it is necessary to increase the movable length of the movable wing rail 117 from the viewpoint of rigidity.
As a result, the length of the guard rail 109 (FIG. 13) for receiving the lateral pressure of the wheel acting on the movable wing rail 117 becomes longer, and the crossing length becomes longer.
Therefore, when replacing an existing fixed crossing with a wing movable crossing, there is a problem that the laying change portion of the rail on the front end side increases, which increases the cost and complicates the replacement work.
[0009]
In such a situation, the turnout is required to be able to cope with a high-speed train running and to be environmentally friendly (low noise and low vibration) in terms of noise and vibration. Therefore, what is required of the crossing rail structure is that there is no seam between the rails and that there is no impact due to the transfer of the broken line portion. Further, there is a need for a structure that can be easily and inexpensively replaced with an existing fixed crossing.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a crossing rail structure that can be installed and changed at a low cost from a fixed crossing and that can realize low noise and low vibration.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, claim 1 is a fixed rail and a nose rail having an acute triangular tip which are arranged and fixed at intervals from each other on a floor plate, and a movable wing rail arranged between the two rails. And a crossing rail structure having the following configuration.
The fixed rail forms an oblique side on the nose rail side.
The movable wing rail has a connecting portion that enables the rail surface to be disposed on a line connecting the rail surface of the fixed rail and the rail surface on one side of the nose rail, and is bent in the same direction at both ends of the connecting portion. It has a front end side wing part and a rear end side wing part respectively extended.
The movable wing rail is mounted on a floor plate so as to perform a switching operation between a connected state and an open state.
The connection state means that the rail surface of the connecting portion of the movable wing rail is located on a line connecting the rail surface of the fixed rail and the rail surface on one side of the nose rail, and the front end wing portion is an oblique portion of the fixed rail. And the rear end wing portion is in contact with the rail surface on the other side of the nose rail.
The open state is a state where at least the rear end wing portion is separated from the rail surface on the other side of the nose rail.
[0011]
According to a second aspect of the present invention, in the crossing rail structure according to the first aspect, when the movable wing rail is mounted on the floor plate, a turning portion is provided on an end side of one of the wing portions, and the turning portion is turned to a center. It is characterized in that the movable wing rail performs a switching operation.
[0012]
According to a third aspect of the present invention, in the crossing rail structure according to the second aspect, a rotating portion is provided at a front end wing portion.
[0013]
According to a fourth aspect of the present invention, in the crossing rail structure according to the first aspect, when the movable wing rail is mounted on the floor plate, an end of one wing portion is fixed to the floor plate, and an elastic portion is provided on the inside thereof. It is characterized in that the movable wing rail performs a switching operation by bending of the elastic portion.
[0014]
According to a fifth aspect of the present invention, in the crossing rail structure according to the fourth aspect, an elastic portion is provided at a front end wing portion.
[0015]
According to a sixth aspect of the present invention, in the crossing rail structure according to the fourth aspect , the elastic portion is constituted by a narrow portion formed by cutting a movable wing rail.
[0016]
According to the above-mentioned crossing rail structure, it is possible to reduce the conversion force of the movable wing rail by dividing the part corresponding to the conventional movable wing rail into a fixed rail and a movable wing rail.
Further, since the wheel passing portion of the movable wing rail having the above structure is only the connecting portion located at the center, the overall length of the movable wing rail can be shortened, and the passage of the wheel on the turning base side including the rotating portion and the elastic portion can be performed. Therefore, the degree of freedom can be increased when designing this part.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
An example of an embodiment of a crossing rail structure according to the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory plan view of a crossing rail structure in which a pair of movable wing rails are mounted, and includes a nose rail 20 fixed on a floor plate 10, a pair of fixed rails 30, 40, a nose rail 20, and each fixed rail 30. , 40 are provided with a pair of movable wing rails 50, 60 which are movably mounted on the movable wing rails 50, 60.
[0018]
The tip 21 of the nose rail 20 is formed in an acute triangular shape, and is fixed on the floor plate 10. A pair of fixed rails (a right fixed rail 30 and a left fixed rail 40) are fixed on the floor plate 10 with an interval from the nose rail 20.
The right fixed rail 30 forms an oblique side 31 having an inclined surface on the outside (right side) on the nose rail side, and the inner rail surface 32 on which wheels travel is connected to the left rail surface 22 of the nose rail 20 by a straight line. Fixed in position. Similarly, the left fixed rail 40 forms an oblique side portion 41 having an inclined surface on the outside (left side) on the nose rail side, and connects the inner rail surface 42 on which the wheels travel with the right rail surface 23 of the nose rail in a straight line. Is fixed at the position where
[0019]
The right movable wing rail 50 and the left movable wing rail 60 are mounted on the floor plate 10 so as to be movable between the nose rail 20 and the fixed rails 30 and 40 in an interlocked manner. Each movable wing rail has a central connecting portion 51, 61, and front end wing portions 52, 62 and rear end wing portions 53, 63 which are bent at both ends of the connecting portion in the same direction and extended, respectively. And is configured.
[0020]
On the bottom surface on the front end side of the front end wings 52, 62 of the movable wing rails 50, 60, a groove corresponding to the columnar protrusion 11 formed on the floor plate 10 is provided, and the columnar protrusion 11 is fitted into this groove. Together, they form a pivot and constitute a rotating part 12 for the movable wing rails 50 and 60 to perform a switching operation.
The movable wing rails 50 and 60 perform a switching operation between a connected state and an open state using the rotating part 12 as a conversion base point (rotation center).
[0021]
The connection state of the movable wing rail is the state of the right movable wing rail 50 in FIG. 1, in which the front end wing section 52 abuts on the oblique side 31 of the right fixed rail 30 and the rear end wing section 53 is connected to the nose rail 20. Is in contact with the right rail surface 23 of the nose rail 20, and in this state, the rail surface of the connecting portion 51 is positioned on a straight line connecting the inner rail surface 32 of the right fixed rail 30 and the left rail surface 22 of the nose rail 20. It has become.
At the front end wing portion 52 and the rear end wing portion 53 of the movable wing rail 50, the rail bottom portion at the contact portion is provided so as to be able to contact the oblique side portion 31 of the fixed rail 30 and the right rail surface 23 of the nose rail 20. The notch is configured.
[0022]
The open state of the movable wing rail is a state of the left movable wing rail 60 in FIG. 1, in which the front end wing part 62 is separated from the oblique side 41 of the left fixed rail 40 and the rear end wing part 63 is the nose rail 20. Means a state in which a flangeway width 70 for running a wheel between the nose rail 20 and the left rail surface 22 is secured.
[0023]
The movable wing rails are connected to each other, and in the branching device 100 shown in FIG. 13, a changeover device is provided between a localization side that guides a train entering from the front end side to a reference line and an opposite side that guides a train entering the branch line. (Not shown), the conversion operation is performed.
That is, when the right movable wingrail 50 is in the contact state, the left movable wingrail 60 is in the open state (the state in FIG. 1, the opposite side), and when the right movable wingrail 50 is in the open state, the left movable wingrail 60 is in the contact state. The switching operation is performed in conjunction with the contact state (localization side).
[0024]
According to the above structure, when the crossing rail is on the opposite side (the state shown in FIG. 1), the right movable wing rail 50 comes into contact with the inner rail surface 32 of the right fixed rail 30 and the rail of the connecting portion 51. Surface, and the left rail surface 22 of the nose rail 20 is arranged in a straight line so as not to cause a broken track line, so that noise and vibration can be reduced even when the wheels run on this portion.
When the crossing rail is located on the localization side, the left movable wing rail 60 is in a contact state, and the left fixed rail 40, the connecting portion 61, and the right rail surface 23 of the nose rail 20 are arranged in a straight line, and the track distance is set. Since no line breaks occur, noise and vibration can be reduced even when wheels run on this part, and high-speed passage is possible when guiding trains entering from the front end to the reference line. Become.
[0025]
FIG. 2 shows another example of the embodiment of the crossing rail structure of the present invention, in which a rotating portion of a movable wing rail is formed on the rear end side, and portions having the same configuration as FIG. 1 are the same. Signs are attached.
In the movable wing rails 50, 60 having this structure, the wing expanding portions 54, 64 are further extended outside the rear end wing portions 53, 63, and the end portions of the wing expanding portions 54, 64 are constituted by pivot portions. The rotating part 12 is provided. The configuration of the pivot portion itself is the same as that of the example of FIG. 1, and is configured such that the cylindrical convex portion 11 formed on the floor plate 10 is fitted into the groove portion on the bottom surface of the wing expanding portions 54 and 64.
[0026]
According to this example, the processing of the movable wing rails 50 and 60 is slightly complicated by forming the wing spread portions 54 and 64 as compared with the example of FIG. Since it can be located on the opposite side, the rail width of the entire crossing can be reduced.
[0027]
FIG. 3 shows another example of the embodiment of the crossing rail structure of the present invention, in which a movable wing rail is arranged only on one side, and the portions having the same configuration as in FIG. ing.
That is, in the structure shown in FIG. 1, the left fixed rail 40 and the left movable wing rail 60 are replaced by the fixed wing rail 43. Therefore, when the right wing rail 50 comes into contact with the right fixed rail 30 and the nose rail 20 (the state shown in FIG. 3), the inner rail surface 32 of the right fixed rail 30, the rail surface of the connecting portion 51, and the nose Since the left rail surface 22 of the rail 20 is aligned and the wheels run on this portion, there is no gap between the gauge lines, but when the right wing rail 50 is in an open state, the fixed wing rail 43 on which the wheels run is formed. A gauge line break will occur between the nose rail 20 and the right rail surface 23.
[0028]
However, in the crossing rail structure, if there is no gap between the gauge lines only on the side where the vehicle runs normally, there may be sufficient noise and vibration in some cases, while using one movable wing rail Accordingly, the conversion structure can be simplified, and can be laid at a lower cost than the structure shown in FIG.
[0029]
FIG. 4 shows another example of the embodiment of the crossing rail structure of the present invention, in which a movable wing rail is arranged on the opposite side to FIG. 3, and the portions having the same configuration as FIG. It is attached.
That is, in the structure shown in FIG. 1, the right fixed rail 30 and the right movable wing rail 50 are replaced by the fixed wing rail 33. The conversion operation is the same as the structure shown in FIG.
[0030]
FIG. 5 shows another example of the embodiment of the crossing rail structure of the present invention, in which a movable wing rail is arranged only on one side, and the portions having the same configuration as in FIG. ing.
That is, in the structure shown in FIG. 2, the left fixed rail 40 and the left movable wing rail 60 are substituted by the fixed wing rail 43.
[0031]
FIG. 6 shows another example of the embodiment of the crossing rail structure of the present invention, in which a movable wing rail is arranged on the opposite side to that of FIG. 5, and the portions having the same configuration as FIG. It is attached.
That is, the structure shown in FIG. 2 is such that the right fixed rail 30 and the right movable wing rail 50 are replaced by the fixed wing rail 33.
[0032]
FIG. 7 shows another example of the embodiment of the crossing rail structure of the present invention. The structure for converting the movable wing rail is different from that of the example of FIG. 1, and a portion having the same configuration as that of FIG. Have the same reference numerals.
Elastic portions 55 and 65 are formed substantially at the center of the front wing portions 52 and 62 of the movable wing rails 50 and 60, and the outer front wing ends of the elastic portions 55 and 65 are fixed to the floor plate 10. And is fixed. Accordingly, when the rear end wings 53, 63 are moved by the conversion rods (not shown), the movable wing rails 50, 60 become the conversion base points by bending of the elastic parts 55, 65, and the movable wing rails bend. And a conversion operation is performed.
[0033]
The elastic portions 55, 65 of the front end wing portions 52, 62 are configured by narrow portions formed by cutting the movable wing rails 50, 60. In this case, since the elastic portions 55 and 65 are formed in the rail portions where the wheels do not travel, as shown in the cross-sectional view of FIG. 18B, not only the rail bottom portions but also the rail head portions are narrowed. The conversion force can be reduced by making it easy to bend.
[0034]
Further, in contrast to the configuration in FIG. 1 in which the entire movable wing rail moves, according to this example, one end sides of the movable wing rails 50 and 60 are fixed to the floor plate 10 by the fixing section 13 and the elastic sections 55 and Since the switching operation is performed with the deflection of 65, the movable wing rails 50 and 60 can be more stably mounted on the floor plate 10, and a structure suitable for high-speed running of the train can be provided.
[0035]
FIG. 8 shows another example of the embodiment of the crossing rail structure of the present invention, in which an elastic portion of a movable wing rail is formed on the rear end side, and portions having the same configuration as FIG. Is attached.
In the movable wing rails 50 and 60 having this structure, the wing expanding portions 54 and 64 extend further outside the rear end wing portions 53 and 63, and elastic portions 55 and 65 are provided on the wing expanding portions 54 and 64. , A fixing portion 13 is provided on the outside thereof. The configuration of the elastic portion itself is the same as that of the example of FIG. 7, and is selectively used with the configuration of FIG.
[0036]
9 and 10 show another example of the embodiment of the crossing rail structure of the present invention. In the structure of FIG. 7, a movable wing rail is arranged only on one side, and the same structure as that of FIG. The same parts are given the same reference numerals.
That is, the example of FIG. 9 has a structure in which the left fixed rail 40 and the left movable wing rail 60 are replaced with the fixed wing rail 43 in the structure shown in FIG.
Further, the example of FIG. 10 has a structure in which the right fixed rail 30 and the right movable wing rail 50 are replaced with a fixed wing rail 33 in the structure shown in FIG.
[0037]
FIGS. 11 and 12 show another example of the embodiment of the crossing rail structure of the present invention. In the structure shown in FIG. 8, the movable wing rail is arranged only on one side. The same parts are given the same reference numerals.
That is, the example of FIG. 11 has a structure in which the left fixed rail 40 and the left movable wing rail 60 are replaced with the fixed wing rail 43 in the structure shown in FIG.
Further, the example of FIG. 12 has a structure in which the right fixed rail 30 and the right movable wing rail 50 are replaced with the fixed wing rail 33 in the structure shown in FIG.
[0038]
In the structure shown in FIGS. 7 to 12, the elastic portions 55 and 65 are formed by narrowing the rails of the movable wing rails 50 and 60. For example, an elastic member is fixed on the extension of the movable wing rails. The end of the elastic portion or a portion connected to the elastic portion may be fixed to the floor plate 10.
Further, since the wheels do not travel in the portion where the elastic portion is formed, it is not necessary to consider conditions for traveling of the wheels in designing, and the degree of freedom in designing can be increased.
[0039]
According to each crossing rail structure described above, the rail surface on which the wheels travel is divided into a fixed rail and a movable wing rail, so that the front end side and the rear end side of the crossing have the same length as the fixed crossing. And the skeleton of the branching device can be made compatible, so that the existing fixed crossings can be easily and inexpensively laid and converted.
[0040]
Also, by dividing the fixed rail and the movable wing rail into two parts, the movable wing rail part can be shortened to reduce the weight, thereby reducing the conversion force. Therefore, in the related art, a conversion machine dedicated to the movable crossing is provided for the conversion operation in the crossing, but in the present invention, the conversion can be used together with the conversion device provided at the point portion.
[0041]
Further, in the movable wing rail, the portion where the wheels travel is only the connecting portion, so that the length of the guard rail (guard rail 109 in FIG. 13) installed to receive the lateral pressure of the wheel in the branching device also depends on the connecting portions 51 and 61. It can be of a correspondingly short length.
[0042]
【The invention's effect】
According to the crossing rail structure of the present invention, the entire length of the movable wing rail can be shortened by laying the part where the wheels travel on the fixed rail and the movable wing rail in two parts, and the front and rear ends of the crossing Can be configured with the same length as the fixed crossing without changing the skeleton of the branching device. As a result, the existing fixed crossings can be easily and inexpensively laid and converted, and the noise and vibration of the crossing portions can be reduced while reducing the construction cost.
Further, by shortening the overall length of the movable wing rail and reducing the conversion force, the conversion device installed at the point portion can use the conversion operation together, and an inexpensive movable crossing structure can be obtained.
[Brief description of the drawings]
FIG. 1 is an explanatory plan view showing an example of an embodiment of a crossing rail structure according to the present invention.
FIG. 2 is an explanatory plan view showing another example of the embodiment of the crossing rail structure.
FIG. 3 is an explanatory plan view showing another example of the embodiment of the crossing rail structure.
FIG. 4 is an explanatory plan view showing another example of the embodiment of the crossing rail structure.
FIG. 5 is an explanatory plan view showing another example of the embodiment of the crossing rail structure.
FIG. 6 is an explanatory plan view showing another example of the embodiment of the crossing rail structure.
FIG. 7 is an explanatory plan view showing another example of the embodiment of the crossing rail structure.
FIG. 8 is an explanatory plan view showing another example of the embodiment of the crossing rail structure.
FIG. 9 is an explanatory plan view showing another example of the embodiment of the crossing rail structure.
FIG. 10 is an explanatory plan view showing another example of the embodiment of the crossing rail structure.
FIG. 11 is an explanatory plan view showing another example of the embodiment of the crossing rail structure.
FIG. 12 is an explanatory plan view showing another example of the embodiment of the crossing rail structure.
FIG. 13 is an explanatory plan view showing a configuration of the branching device.
FIG. 14 is an explanatory plan view of a fixed crossing.
FIG. 15 is an explanatory plan view showing a main part of a nose movable crossing.
FIG. 16 is an explanatory plan view showing a configuration of a wing movable crossing.
FIG. 17 is an explanatory plan view showing a main part of a wing movable crossing.
18 (a) and (b) are cross-sectional explanatory views showing respective cross-sectional shapes of an elastic portion of a conventional movable wing rail and an elastic portion of a movable wing rail used in the structure of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Floor board, 12 ... Rotating part, 13 ... Fixed part, 20 ... Nose rail, 21 ... Tip part, 22 ... Left rail surface, 23 ... Right rail surface, 30 ... Right fixed rail, 31 ... Oblique side, 32 ... Inner rail surface, 33: Fixed wing rail, 40: Left fixed rail, 41: Oblique side, 42: Inner rail surface, 43: Fixed wing rail, 50: Right movable wing rail, 60: Left movable wing rail, 51, 61 ... Connecting part, 52,62 ... Front end side wing part, 53,63 ... Rear end side wing part, 54,64 ... Wing expanding part, 55,65 ... Elastic part, 70 ... Flange way width, 100 ... Branch, 110 ... crossing, 115 ... conversion rod

Claims (6)

A crossing rail structure comprising a fixed rail and a nose rail having an acute triangular tip, which are disposed and fixed at intervals from each other on the floorboard, and a movable wing rail disposed between the two rails,
The fixed rail forms a hypotenuse on the nose rail side,
The movable wing rail has a connecting portion that enables the rail surface to be disposed on a line connecting the rail surface of the fixed rail and the rail surface on one side of the nose rail, and is bent in the same direction at both ends of the connecting portion. A front-end wing portion and a rear-end wing portion respectively extended,
The rail surface of the connecting portion of the movable wing rail is located on a line connecting the rail surface of the fixed rail and the rail surface on one side of the nose rail, and the front end wing portion abuts on the oblique side of the fixed rail, and The switching operation is performed between a connection state in which the end wing portion contacts the rail surface on the other side of the nose rail and an open state in which at least the rear end wing portion is separated from the rail surface on the other side of the nose rail. A movable wing rail is mounted on the floor plate. 2. The crossing rail according to claim 1, wherein when the movable wing rail is mounted on the floor plate, a turning part is provided on an end side of one of the wing parts, and the moving wing rail is turned around the turning part. Construction. 3. The crossing rail structure according to claim 2, wherein a rotating portion is provided at the front end side wing portion. The mounting of the movable wing rail on the floor plate, the end of one wing portion is fixed to the floor plate, an elastic portion is provided inside the movable wing rail, and the movable wing rail performs a switching operation by bending the elastic portion. 2. The crossing rail structure according to 1. The crossing rail structure according to claim 4, wherein an elastic portion is provided on the front end wing portion. The crossing rail structure according to claim 4 , wherein the elastic portion is configured by a narrow portion formed by cutting a movable wing rail.

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