JP2756951B2 - Ballast outflow prevention block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block used as a structure of a railway track and relates to a block connected to an end of a ballast ballast to prevent the ballast from flowing out and to be used as a walking surface for persons involved in railway construction. Works, 500 ends
The present invention relates to a ballast outflow prevention block having stability, seismic resistance, and drainage capability that can support a high ballast of up to 800 mm.

[0002]

2. Description of the Related Art Conventionally, as a block for preventing ballast outflow, for example, a block invented by the present applicant (actually disclosed in Japanese Patent Publication No.
According to the claims for utility model registration, "(1) A support wall 2 for ballast support is erected near the rear halfway of the upper surface of the laying plate main body 1 and one end side of the support wall 2 is provided. A long leg 7 to be buried in a hole 6 formed by digging a roadbed 5 while laying the upper surface of the laying plate body 1 on the walking surface 3 and the upper surface of the laying plate body 1 on the other end as a ballasting surface 4. A ballast outflow prevention block characterized by projecting from the rearmost end of the bottom surface of the plate body 1 on the ballast stacking surface 4 side.
(2) The ballast outflow prevention block according to claim (1), wherein the legs 7 partially protrude from the rearmost end of the bottom surface of the laying plate body 1 on the ballast stacking surface 4 side. It has become.

[0003] In addition, the detailed description of the invention is that "the bearing wall 2 is provided with a drain hole 9 and the ballasting surface 4 is adapted to drain water flowing onto the ballasting surface properly. The inclined surface is directed downward from the outer corner 10 of the ballast deposition surface 4 to the drain hole 9 so as to be guided to the hole 9. "
(Section 3, columns 5 to 9), and "Spikes 12 are provided on both ends of the bottom surface of the laying plate body 1 on the walking surface 3 side, respectively." Line).

According to the drawing, the drainage hole 9 is a semicircular horizontal straight path, the ballast stacking surface 4 forms a gentle recess at the rearmost end and is inclined toward the drainage hole 9, and the legs 7 The front surface is inclined, and the spike 12 has a front surface and an outer surface perpendicular to each other, and the other surface has a gentle inclination.

When the length from the rear surface of the bearing wall 2 to the tip of the walking surface 3 is set to 100, the thickness of the siding plate body 1 is approximately 10 and the slab plate body 1 is ballasted. The maximum thickness at the rear end of the surface 4 is about 11 The difference between the thickness of the walking surface 3 of the laying plate body 1 and the maximum thickness of the ballast stacking surface 4 is approximately 1, and the ballast stacking surface 4 The length to the rear end is about 25, the height from the bottom of the laying plate main body 1 to the upper end of the support wall 2 is about 63, and the laying plate main body 1 at the rear position of the support wall 2
The ratio is a length of approximately 13 from the bottom surface to the front surface of the leg 7, and a height of approximately 22 from the bottom surface of the laying plate body 1 to the lower end of the leg 7.

[0006]

The actual size is indispensable to know the details of the conventional ballast outflow prevention block. Therefore, the actual size is given to the block having the above ratio, and then the problem is specifically described.

[0007] The width of the ballast ballast is limited, and the length from the rear surface of the bearing wall 2 to the tip of the walking surface 3 is generally up to about 610 mm when the thickness of the walking surface 3 and the thickness of the bearing wall 2 are combined. Is applied to this block as it is to obtain the actual size. Then, the thickness of the laying board body 1 and the walking surface 3 part is about 6
1 mm, maximum thickness of the bottom end of the ballasting surface 4 is about 67 mm, and the difference between the maximum thickness of the walking surface 3 of the main board 1 and the maximum thickness of the rearmost end of the ballasting surface 4 is about 6 mm. ,
Approximately 1 length from the rear surface of the bearing wall 2 to the rear end of the ballasting surface 4
52 mm, height of approximately 384 mm from the bottom of the spreadsheet body 1 to the upper end of the support wall 2, approximately 79 mm in length from the bottom of the spreadsheet body 1 to the front of the leg 7 at the rear position of the support wall 2, and the bottom of the spreadsheet body 1 to the lower end of the leg 7 To a height of about 134 mm. This size is almost equal to the actual size set by the applicant at the time of filing this block.

Previously, the end of the ballast was about 300 mm. In recent years, subsidence of the roadbed has occurred everywhere, and it is necessary to add ballasts corresponding to the settlement and increase the amount of ballast to make the distance between the line and the transmission line constant. The width of the ballast ballast is fixed, and the height of the ballast end is increasing. However, recently, a block capable of supporting 500 to 800 mm is required.

In the case of the above-mentioned conventional block, when the thickness of the walking surface 3 portion of the spreading plate main body 1 is subtracted from the height of approximately 384 mm from the bottom surface of the spreading plate main body 1 to the upper end of the support wall 2 by approximately 61 mm, it becomes approximately 323 mm. 300 ballast ends
mm, and cannot be adapted to a height of 500 to 800 mm.

Therefore, only the height of the bearing wall 2 is set to 500-80.
I tried to increase it to 0 mm, but the ballast with 500 mm at the end was strongly loaded and the lateral pressure was strong, the block became very unstable, it slid forward, slipped sideways and slipped, Was found to be at risk of spillage.
In addition, it was found that they are very unstable against vibrations such as earthquakes, structurally weak, and have problems in drainage.

In a conventional block, the ends are 500-80.
The reasons why the ballast having a height of 0 mm cannot be prevented from flowing out, is weak against earthquakes, and has a problem in drainage properties are listed below.

Since the bearing wall 2 is too low, it is not possible to cope with an increase in ballast height due to an increase in ballast. Laying board body 1
In the ratio of the height from the bottom surface to the upper end of the support wall 2 of about 63, the actual size is about 384 mm, and the actual size of the support wall 2 alone is about 323 mm,
A ballast of 500 to 800 mm at the end flows out over the bearing wall 2.

[0013] The weight of the block is too light to withstand the lateral pressure of the ballast. In particular, the thickness of the laying board body 1 is such that the thickness of the walking surface 3 portion of the laying board body 1 is about 10 in a ratio, about 61 mm in actual size, and the maximum thickness of the laying board body 1 ballast stacking surface 4 rearmost end is about 11 mm. Since the actual size is about 67 mm, which is too thin, the weight of the entire block is light and the ballast slides due to the lateral pressure. The danger further increases if vibrations such as earthquakes are applied.

The ballasting surface 4 is too short and the ballast loading weight is weak. The ratio of the length from the rear surface of the bearing wall 2 to the rear end of the ballasting surface 4 is approximately 25, and approximately 152 in actual size.
mm, the ballast stacking surface 4 is narrow, so the amount of ballast to be loaded is small, the weight applied to the ballast stacking surface 4 is small, and the force for pressing the block against the roadbed at the rear is weak.
The ballast slides due to the lateral pressure. The danger further increases if vibrations such as earthquakes are applied.

Since the difference between the maximum thickness of the walking surface 3 of the laying board body 1 and the maximum thickness of the rearmost end of the ballast stacking surface 4 is as small as about 1 and the actual size is about 6 mm, the inclination angle of the ballast stacking surface 4 is small. However, the resistance to the ballast accumulated on the ballast accumulation surface 4 is small, and there is no structure capable of preventing the sliding body 1 from slipping. Further, since the inclination of the ballast deposition surface 4 is small, the efficiency of drainage is low.

Since a gentle recess is formed at the rearmost end of the ballast deposition surface 4 and is inclined toward the drain hole 9, this central vertical portion is structurally very weak.

Further, the loaded ballast is very unstable because it is merely placed in a loose dent. For example, when there is a vibration such as a lateral earthquake, the ballast moves on the ballast deposition surface 4. In particular, it easily moves and collapses without any resistance.

Further, the ballast deposition surface 4 is formed at the outer corners 10.
Since it is an inclined surface facing downward from the left and right rear end portions to the drain hole 9, the tip of the outer corner portion 10 has a projecting shape,
It is easy to lose structurally.

The lateral pressure applied to the ballast deposited on the ballasting surface 4 is distributed without being concentrated on the rear surface of the bearing wall 2 due to the gentle inclination of the ballasting surface 4 and the ballast is strong. When a lateral pressure is applied to the bearing wall 2, the force concentrates on the weakest part of the pressure, which is very dangerous. The block has the greatest resistance to the force pushing the vertical center of the bearing wall, but has less resistance to forces biased to the left or right. For example, when a strong lateral pressure is concentrated on the left side of the bearing wall 2 due to an earthquake, a train passing, or the like, a force for rotating the block to the right works, and there is a risk that the connection of the block may be disconnected in addition to the side slip.

The height from the bottom surface of the laying plate body 1 to the lower end of the leg 7 is short, and cannot withstand the strong lateral pressure of the ballast. With a ratio of about 22 and an actual size of about 134 mm, the ballast end height is 300
mm, but cannot withstand 500 to 800 mm and cannot prevent skidding.

Since the front surface of the leg 7 is inclined, when a strong lateral pressure is applied, the leg 7 comes off from the roadbed and the laying plate body 1 is easily lifted, which is very dangerous.

Since the length from the bottom surface of the laying plate body 1 at the rear surface of the bearing wall 2 to the front surface of the leg 7 is short, there is no stability against the lateral pressure of the ballast. The ratio is about 13, and the actual size is about 79 mm. The shorter the length is, the shorter the distance between the leg 7 and the support wall 2 is. When lateral pressure is applied to the support wall 2, the force to try to move the entire block forward is stronger due to the presence of the leg 7 near. And the whole block becomes very unstable against the strong lateral pressure of high ballast.

The spikes 12 are located on both sides of the leading end of the laying plate body 1, and the front and outer surfaces are vertical and the other surface has a gentle slope.
The force or vibration applied in the forward direction cannot be received in a small area in front of the spike 12 and the shape of the road is moved unilaterally by shaving the road surface, and the force and vibration applied in the lateral direction cannot be overcome. It is easy to move because it is received with a gentle slope on the inner surface. When the blocks are connected and laid, the outer surfaces of the vertical spikes 12 have a structure in which the adjacent outer surfaces come into full contact with each other to form an integrated spike structure, and there is no contact with the roadbed. 2 of adjacent blocks
Since each spike effectively constitutes one spike,
The actual number of spikes can be obtained by the number of laid blocks + 1. For example, when ten blocks are laid, twenty spikes 12 constitute eleven spikes, and the effect of the spikes is reduced by half, including the forward and lateral directions, by the reduced amount.

The drain hole 9 is horizontal and does not have a structure for draining efficiently due to the inclination. Since the drain hole 9 is a semi-circular low straight path, ballast does not invade and is closed. Can not cope with the drainage. When heavy rain falls on the roadbed, a large amount of rainwater accumulates in the ballast, and the lateral pressure applied to the bearing wall 2 increases, resulting in a very dangerous state that leads to ballast outflow.

An object of the present invention is to provide a ballast outflow prevention block which solves the above-mentioned problems of the conventional block.

[0026]

The present invention comprises a support wall, a floor board body, a leg, and a non-slip projection. The upper surface of the floor board body ahead of the support wall is a walking surface, and the walking surface is horizontal. Drainage grooves are formed, and the upper surface of the floor board body behind the bearing wall is a deposition surface for depositing ballast, and the deposition surface is thicker than the walking surface and is inclined lower forward, and It is formed of three triangles of left, right and center connecting a point at the center lower end of the rear surface of the bearing wall and two points at the left and right rear ends of the stacking surface, which are formed particularly low in the stacking surface. The present invention provides a bearing wall, a floor plate main body, a leg, and a non-slip protruding ballast by stably accumulating ballasts from three directions with two triangles having a low inclination and a central triangle having a low inclination forward. Part of the floor plate body ahead of the bearing wall The upper surface is a walking surface, the walking surface is horizontal and a drain groove is formed, the upper surface of the floor plate body behind the bearing wall is a deposition surface for depositing ballast, and the deposition surface is thicker than the walking surface In addition, it is inclined lower forward and is higher than the walking surface, but it is particularly low in the stacking surface. One point at the lower center of the rear surface of the bearing wall and two points at the left and right rear ends of the stacking surface are connected by a straight line. It consists of two triangles, which are inclined from the left and right to the center diagonally forward and lower, and the center triangle which is inclined forward lower and stably deposits the ballast from three sides while keeping the ballast stable. Collected near the center of the rear surface to increase stability, the weight of the ballast accumulated on the accumulation surface that is inclined forward low overall is slightly inclined backward and is applied downward, so that the ballast from the bottom end of the bottom of the floor board body into the roadbed With buried legs The weight of the ballast increases the resistance, and the resistance of the ballast deposited by the left and right triangular slanting forward and the central triangle slanting low forward increases the front and bottom of the floorboard body. It has the effect of preventing lateral slippage in the left and right directions, and a support wall for supporting ballast on the rear surface is erected on the upper surface of the floor board body, and the rear surface that supports the ballast is vertical, and the center of the support wall is At the lower end, a drain hole is formed that penetrates back and forth, and the drain hole is tapered by expanding the inner diameter on the front side more than the inner diameter on the rear side so that the lower end of the inner diameter on the rear side coincides with one point on the center lower end on the rear surface of the support wall. The lower end of the inner peripheral surface is formed so that the inclination of the lower end of the inner peripheral surface coincides with the inclination of the vertical center of the sedimentation surface, and the water in the ballast efficiently turns the three triangular triangles of the sedimentation surface facing the drainage hole toward the drainage hole. Drainage is fast because The inside diameter of the drain hole is not closed with ballast because the inside diameter of the side is made small, and a large hole that expands in a tapered shape toward the front side is secured, so it can demonstrate drainage that can cope with large amounts of drainage, Two legs are formed on the left and right of the rear end of the bottom of the main body, the front surface, the outer surface, and the rear surface are formed perpendicularly except for the reinforcement part of the leg, and the root of the leg is wide only on the inner surface where the two legs face each other Is formed so as to be narrower,
Since the front of the legs is vertical, lateral pressure is applied at right angles to the roadbed, so that it is possible to reliably prevent skidding in the front of the baseboard body and the front and rear surfaces of the legs are vertical, so after being buried deep in the roadbed there is stability and rise Without any
The two non-slip projections are formed in a square pyramid with four sides, front, rear, left and right, on the bottom surface of the sole plate body, and the front and outer surfaces are inclined more steeply than the rear and inner surfaces. There is a gentle slope on the rear and inside surfaces to ensure a constant width and area while the front and outside surfaces are steep, and the steep front surface ensures the soleboard body even when subjected to the lateral pressure of the ballast applied to the bearing wall. The reason why the outside surface is steeply sloped is to prevent the sole plate body from laterally sliding in the lateral direction, and the quadrangular pyramid shape is that the sole plate body does not skid due to vibration and cuts into the roadbed. , The length from the back of the bearing wall to the tip of the walking surface is 540-610 mm,
The thickness of the footboard body walking surface is 120 to 130 mm, the maximum thickness of the bottom end of the footboard body stacking surface is 150 to 160 mm,
The difference between the maximum thickness of the walking surface portion of the floor plate body and the maximum thickness of the rearmost end of the pile surface is 25 to 35 mm, the length from the rear surface of the support wall to the rear end of the pile surface is 250 to 290 mm, The height from the bottom to the front of the leg excluding the reinforcing part from the bottom of the floor plate at the rear surface of the bearing wall is 175 to 190 mm, and the height from the bottom of the floor to the bottom of the leg is 200 to 230 mm. The present invention relates to a ballast outflow prevention block characterized by the following.

In the ballast outflow prevention block according to the present invention, as a result of the above-described various elements acting in combination, the ballast 7 having an end portion height of 500 to 800 mm is securely and securely retained to achieve the outflow prevention. be able to.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings based on embodiments, but it is needless to say that the present invention is not limited to the following embodiments.

This block comprises a bearing wall 1, a floor plate main body 2, legs 3, 3 and non-slip projections 4, 4. The concavo-convex portions alternately formed on the left and right sides of the floor board body 2 are connection portions 29.

The upper surface of the floor board body 2 in front of the bearing wall 1 is a walking surface 5, and a horizontal drain groove 6 is formed.

The upper surface of the floor plate body 2 behind the bearing wall 1 is a stacking surface 8. The stacking surface 8 is thicker than the walking surface 5 and is inclined lower forward.
One point 1 at the center lower end of the rear wall 9
It is formed from three triangles 12, 13, and 14 at the left and right and at the center connecting two points 11 and 11 at the left and right rear ends of the stacking plane 8 with 0.

Since the rear end of the deposition surface 8 is not dented, it is structurally strong, and the corners of the left and right rear ends of the deposition surface 8 do not protrude, so that there is no damage (see FIG. 4).

The two triangles 12.13, which are inclined downward and obliquely forward in the center from the left and right, and the central triangle 14 which is inclined downwardly forward, accumulate ballast from three sides while holding the ballast in a stable manner. Hard to collapse, ballast 7
Since the weight distribution of the lateral pressure is concentrated near the center vertical of the rear surface 9 of the bearing wall 1, the pressure for rotating the block is not applied, so that the stability is high (see FIG. 8A), and the overall inclination is low and low. The weight of the ballast 7 deposited on the deposited surface 8 is slightly inclined backward and is applied downward, so that the bottom surface 15
A large weight is applied to the legs 3, 3 buried in the roadbed 16 from the rear end to enhance stability, and the left and right triangles 12, 13 inclined diagonally forward from left and right and the central triangle 14 inclined downward forward. The resistance to the ballast 7 deposited by the deposition surface 8 made of the resin increases, and the effect of preventing the sideslip in the front and left and right lateral directions of the floor plate body 2 is high, and the stability is increased (FIG. 8).
(B)).

The support wall 1 for supporting the ballast 7 is erected on the upper surface 17 of the floor board body 2 with the rear surface 9, and the rear surface 9 for supporting the ballast 7 is vertical.

The drain hole 18 penetrates the center lower end of the support wall 1 back and forth, and the drain hole 18 has the lower end of the rear inner diameter coincident with the point 10 at the center lower end of the rear surface 9 of the support wall 1 and is located forward of the rear inner diameter. Is formed in a tapered shape by expanding the inner diameter of the inner peripheral surface, and the inclination of the lower end of the inner peripheral surface is made to coincide with the inclination of the vertical center of the deposition surface 8.

The water 19 in the ballast 7 is made up of three triangles 12, 13, 1 of the accumulation surface 8 inclined toward the drain hole 18.
4 efficiently flows toward the drainage hole 18 so that the drainage is speedy, and the inside diameter of the drainage hole 18 is tapered toward the front without being closed by the ballast 7 because the inside diameter of the rear side of the drainage hole 18 is formed small. A large hole that is widened is secured, so it can exhibit drainage properties that can handle a large amount of drainage.

Two legs 3, 3 are formed on the left and right of the rear end of the bottom surface 15 of the floor plate body 2. The front surface 21, the outer surface 22, and the rear surface 23 of the legs 3, 3 excluding the reinforcing portion 20 are formed vertically,
Only the inner surface 24 where the two legs 3 and 3 face each other is formed to be inclined so that the root of the leg 3 is wide and the tip is narrow.

Since the front surface 21 of the leg 3 is vertical, a lateral pressure is applied at right angles to the roadbed 16, so that it is possible to reliably prevent the slipboard body 2 from slipping forward. Since the front and rear surfaces 21 and 23 are vertical, they are stable and do not float after being buried deep in the roadbed 16.

Two non-slip projections 4, 4 are formed on the left and right of the tip of the bottom surface 15 of the floor plate body 2, and the front surface 25 and the outer surface 26 are inclined more steeply than the rear surface 27 and the inner surface 28. It has a pyramid shape.

The reason why the rear surface 27 and the inner side surface 28 have a gentle inclination is to secure a constant width and area while the front surface 25 and the outer surface 26 are steeply inclined. The front surface 25 is steeply inclined because the side of the ballast 7 added to the bearing wall 1. The sole plate body 2 is prevented from sliding sideways forward even under pressure. The outer surface 26 is steeply sloped to ensure that the sole plate body 2 does not slide laterally. This is because the main body 2 does not skid and cuts into the roadbed 16 to be able to overcome the side slip.

The block of this embodiment shown in all figures except for FIG. 7B has a length of 610 mm from the rear surface 9 of the bearing wall 1 to the tip of the walking surface 5 and the thickness of the floor body 2 and the walking surface 5 portion. 120 mm, the maximum thickness at the rearmost end of the stacking plate body 2 stacking surface 8 is 150 mm, the difference in thickness between the walking surface 5 portion of the flooring plate body 2 and the maximum thickness at the rearmost end of the stacking surface 8 is 30 mm, and the support wall 1 The length from the rear surface 9 to the rear end of the stacking surface 8 is 250 mm, the height from the bottom surface 15 of the floor plate body 2 to the upper end of the support wall 1 is 620 mm,
From the bottom surface 15 of the base plate 2 at the rear surface 9 of the bearing wall 1 to the reinforcing portion 2
The length from the bottom surface 15 of the floor plate body 2 to the lower end of the leg portion 3 is 200 mm, and the length from the bottom surface 15 to the bottom surface 15 is 200 mm.
It is. The height from the bottom surface 15 of the sole plate body 2 to the upper end of the support wall 1 is 620 mm. The width of the block excluding the connecting portion 29 in this embodiment is 500 mm.

The block of this embodiment shown in FIG. 7B has a length from the rear surface 9 of the support wall 1 to the tip of the walking surface 5 of 61.
0mm, the thickness of the footboard body 2 walking surface 5 part is 130mm,
The maximum thickness of the bottom end portion of the base body 2 deposition surface 8 is 160 mm,
The difference between the maximum thickness of the walking surface 5 part of the floor board body 2 and the maximum thickness of the rearmost end of the stacking surface 8 is 30 mm,
The length to the rear end is 290 mm, the height from the bottom surface 15 of the floor plate body 2 to the upper end of the support wall 1 is 930 mm, and the rear surface 9 of the support wall 1
The leg 3 excluding the reinforcing portion 20 from the bottom surface 15 of the floor plate body 2 at the position
The length to the front 21 is 190 mm,
From the bottom to the lower end of the leg 3 is 200 mm. The width of the block excluding the connecting portion 29 in this embodiment is 500 mm.
It is.

In order to prevent the ballast having an end having a height of 500 to 800 mm from flowing out, the height of the support wall 1 from the bottom surface 15 of the floor plate main body 2 of the block described above is sufficient. The thickness can secure a sufficient weight of the block, the length of the stacking surface 8 can ensure a sufficient loading weight of the ballast 7, and the difference in thickness between the stacking surface 8 and the walking surface 5 is equal to the ballast 7
And the legs 3 can sufficiently withstand the strong lateral pressure of the ballast 7.

The length from the bottom surface of the floor plate body 2 at the rear surface 9 of the bearing wall 1 to the front surface of the leg 3 is sufficient to ensure stability of the ballast 7 against lateral pressure. Leg 3 if this is long
When the lateral pressure of the ballast 7 is applied to the bearing wall 1, the distance between the ballast 7 and the bearing wall 1 increases, and since the legs 3 are far away, the force for moving the entire block forward is extremely weak, and the legs 3 are lifted. However, the entire block can maintain a very stable state even with a strong ballast and strong lateral pressure.

In the ballast outflow prevention block according to the present invention, as a result of the above-described various components acting in combination, the ballast 7 having an end portion height of 500 to 800 mm is securely and securely retained to achieve the outflow prevention. be able to. Of course, the ballast 7 having an end of less than 500 mm can be supported without any problem. In the case of a ballast 7 having an end exceeding 800 mm, it is very difficult to guarantee safe and secure ballast outflow prevention.

[0046]

According to the ballast outflow prevention block according to the present invention described above, it is possible to reliably prevent outflow of a high ballast having an end portion of 500 to 800 mm.

The deposition surface is structurally strong and the corners at the right and left rear ends are hardly damaged. Since the ballast is deposited while holding the ballast stably from three sides with a triangular shape of the deposition surface, the ballast does not easily collapse. Since the weight distribution of the lateral pressure of the ballast is collected near the center of the rear surface of the bearing wall, the force for rotating the block is not applied, and the stability is high.
As a whole, the load on the deposition surface that is inclined low forward is slightly inclined backward and is applied downward, so that a greater weight is applied to the legs and stability is improved. Since the resistance between the deposited surface and the deposited ballast is high, it is highly effective in preventing slippage in the forward and lateral directions and increases the stability.

Since the water in the ballast 7 efficiently flows toward the drain hole through the three triangles of the accumulation surface which are inclined toward the drain hole, drainage is speedy and the inside diameter of the rear side of the drain hole is formed small. As a result, the inside of the drain hole is not closed by the ballast 7, and a large hole that is tapered and widened toward the front side is secured, so that a drainage property that can cope with a large amount of drainage is exhibited.

Since the front surface of the leg portion is vertical, lateral pressure is applied to the roadbed at right angles, so that it is possible to reliably prevent the slippage of the main body of the floor board forward, and since the front and rear surfaces are vertical, it is stable and lifts up after being buried deep in the roadbed. Never.

The anti-slip protruding portion has a strong resistance to prevent the skidding in the forward and lateral directions, and has a quadrangular pyramid shape.

In order to prevent a high ballast having an end of 50 cm or more from flowing out, the height of the support wall from the bottom surface of the floor plate body is sufficient, and in particular, the thickness of the floor plate body can secure a sufficient weight. The length of the stacking surface can ensure a sufficient loading weight, the difference in thickness between the stacking surface and the walking surface can ensure a sufficient inclination to generate strong resistance to the ballast, and the height of the legs is strong The ballast can sufficiently withstand the pressure, and the length from the bottom surface of the floor plate body at the rear surface of the bearing wall to the front surface of the leg is sufficient to ensure the stability of the ballast against lateral pressure.

[Brief description of the drawings]

1A and 1B show one embodiment of a ballast outflow prevention block according to the present invention, wherein FIG. 1A is a rear perspective view and FIG. 1B is a bottom view.

FIG. 2 is a front perspective view of a ballast outflow prevention block according to the present invention.

FIG. 3 is a front view of a ballast outflow prevention block according to the present invention.

FIG. 4 is a rear view of the ballast outflow prevention block according to the present invention.

FIG. 5 is a plan view of a ballast outflow prevention block according to the present invention.

FIG. 6 is a central vertical sectional view of a ballast outflow prevention block according to the present invention.

FIGS. 7A and 7B are right side views of a ballast outflow prevention block according to the present invention, in which FIG. 7A is an embodiment having a lower bearing wall, and FIG. 7B is an embodiment having a higher bearing wall.

FIG. 8 is an explanatory view of a block for preventing ballast outflow according to the present invention, wherein (A) shows a weight distribution on a bearing wall;
(B) shows the strength of ballast retention and resistance by the deposition surface.

FIG. 9 is a cross-sectional view illustrating a use state of the ballast outflow prevention block according to the present invention.

FIG. 10 is an explanatory view showing a conventional ballast outflow prevention block.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bearing wall 2 Floor body 3 Leg part 4 Slip protruding part 5 Walking surface 6 Drainage groove 7 Ballast 8 Stacking surface 9 Rear surface 10 1 point at lower center end 11 2 points at left and right rear ends 12 Left triangle 13 Right triangle 14 Center 15 Bottom surface 16 Roadbed 17 Top surface 18 Drainage hole 19 Water 20 Leg reinforcement 21 Front of leg 22 Outer surface of leg 23 Rear of leg 24 Inner surface of leg 25 Front of non-slip projection 26 Slip Outer side surface of anti-slip projection 27 Back surface of anti-slip projection 28 Inner surface of anti-slip projection 29 Connecting portion

Claims (1)

(57) [Claims] 1. A sole plate body which comprises a bearing wall (1), a sole plate body (2), legs (3) (3), and non-slip projections (4) (4), and is located forward of the bearing wall (1). The upper surface of (2) is a walking surface (5), and the walking surface (5) is horizontal and has a drain groove (6) formed therein, and the sole plate body (2) behind the bearing wall (1).
Is an accumulation surface (8) for accumulating a ballast (7), and the accumulation surface (8) has a higher thickness than the walking surface (5) and is inclined forward and lower. A bearing wall (1) formed at a particularly low height in the stacking surface (8), a rear surface (9), and one point (10) at the center lower end and two points (11) and (11) at the left and right rear ends of the stacking surface are connected by a straight line. Two triangles (12) and (13), which are formed from three triangles (12), (13), and (14) on the left, right, and center, and slant downward from the left and right toward the center, and a central triangle (14) that slopes low from the front. ), The ballast is deposited from three sides while keeping it in a stable state, and the weight distribution of the lateral pressure of the ballast (7) is gathered in the vicinity of the center vertical of the rear wall (9) of the bearing wall (1) to enhance the stability, and the overall front is increased. The weight of the ballast (7) deposited on the deposition surface (8), which is inclined low, is slightly Since it is applied downward, a large weight is applied to the legs (3) and (3) buried in the roadbed (16) from the rear end of the bottom surface (15) of the base plate (15) to increase stability, and to increase the stability diagonally forward from the left and right. The resistance of the ballast (7) deposited by the deposition surface (8) consisting of the lower right and left triangles (12) and (13) and the lower downwardly inclined central triangle (14) increases the floorboard body (2). The ballast (7) on the rear surface (9) on the upper surface (17) of the floor board body (2)
Erecting a support wall (1) for supporting the vehicle, and supporting the support wall (1)
Has a vertical rear surface (9) supporting the ballast (7),
Support wall (1) Drainage hole (18) penetrating back and forth at the center lower end
The drain hole (18) is formed such that the lower end of the inner diameter on the rear side coincides with one point (10) at the lower end of the support wall (1) on the rear surface (9) and the inner diameter on the front side is larger than the inner diameter on the rear side. The water (19) in the ballast (7) is inclined toward the drain hole (18) so that the inclination of the lower end of the inner peripheral surface coincides with the inclination of the center of the deposition surface (8). The three triangular surfaces (12), (13), and (14) of the accumulated surface (8) are efficiently drained (1).
8), the drainage is rapid, and the drainage hole (1) is formed to reduce the inside diameter of the rear side of the drainage hole (18).
8) The interior of 8) is not closed by the ballast (7), and a large hole that expands in a tapered shape toward the front side is secured. (15) Two legs on the left and right of the rear end (3)
(3), the front surface (21), the outer surface (22) and the rear surface (23) of the legs (3) and (3) excluding the reinforcing portion (20) are formed vertically to form two legs (3). Only the inner surface (24) facing (3) is formed so as to be inclined so that the root of the leg (3) is wide and the tip is narrow, and the front surface (21) of the leg (3) is vertical so that it is perpendicular to the roadbed (16). Since lateral pressure is applied to the legs, it is possible to reliably prevent the skidboard body (2) from slipping forward and the legs (3).
Since the front and rear surfaces (21) and (23) are vertical, they are stable and do not rise after being buried deep in the roadbed (16). Forming protrusions (4) and (4), and forming a non-slip protrusion (4);
(4) The front, rear, left and right 4
The front surface (25) and the outer surface (26) have a quadrangular pyramid shape with a slope that is steeper than the rear surface (27) and the inner surface (28), and the rear surface (27) and the inner surface (28). The reason why the front surface (25) and the outer surface (26) are steeply inclined is to secure a constant width and area, and the front surface (2) has a gentle slope.
The reason why 5) is steep is that the main body of the floor plate (2) is not liable to slide forward even if the lateral pressure of the ballast (7) applied to the bearing wall (1) is received, and the outer surface (26) is steeply sloped. The square pyramid is used in order to prevent the lateral slippage of the sole plate in the lateral direction.
, Rather than slipping into the roadbed (16), having a length of 540-610 mm from the rear wall (9) to the tip of the walking surface (5), the sole plate body (2) and the walking surface (5). ) The thickness of the portion is 120 to 130 mm, the sole plate body (2) the deposition surface (8) the maximum thickness of the rearmost end is 150 to 16
0 mm, the difference between the maximum thickness of the walking surface (5) of the floor board body (2) and the stacking surface (8) of the rearmost end is 25 to 35 m
m, the length from the rear surface (9) of the bearing wall (1) to the rear end of the stacking surface (8) is 250 to 290 mm,
The height from 5) to the upper end of the bearing wall (1) is 620 to 930
mm, the length from the bottom surface (15) to the legs (3) excluding the reinforcing part (20) from the bottom surface (15) to the legs (3) the front surface (21) is 175 to 190 mm, (2) The height from the bottom (15) to the leg (3) lower end is 2
A ballast outflow prevention block having a length of 00 to 230 mm.