KR101029542B1 - Railroad tie and coupler therefor - Google Patents

Abstract

PURPOSE: A railway sleeper equipped with a reinforcement frame is provided to steadily support a vehicle wheel and prevent partial abrasion of the wheel. CONSTITUTION: A railway sleeper equipped with a reinforcement frame comprises a sleeper part(110) and a plurality of fasteners(120). The sleeper part supports a rail on a roadbed. The sleeper part is composed of a reinforcement frame(111), an exterior frame(112), and a colored layer(113). The reinforcement frame is combined in a plurality of fixture pieces. The exterior frame constitutes the exterior of the reinforcement frame. The colored layer is covered on the exterior frame. The fastener clinches the rail on the sleeper part. The fastener is composed of a clip shoulder(122) and a fixture piece(121). The clip shoulder has a support piece(122a) supporting the lower part of the rail. The fixture piece is downward stretched from the lower-part of the clip shoulder.

Description

Rail sleepers {Railroad tie and coupler therefor}

The present invention relates to a sleeper for rail comprising a sleeper for supporting the rail on the roadbed and a fastening device for fastening the rail to the sleeper, in particular, during the molding production prevents the deformation of the sleeper after molding It is possible to increase the strength, as well as to a sleeper for the rail that can stably support the wheel while preventing uneven wear of the wheel.

In general, railway vehicles such as high-speed railway vehicles, small urban railway vehicles, subways and rail bikes travel along rails installed on railway tracks, and these rails are fixed on railroad ties through fastening devices. As a result, it is stably supported by the roadbed.

To this end, conventionally by fixing a pair of clip shoulders 21 facing each other as shown in Figure 1 to the sleeper 10, the base provided in the lower portion of the rail 30 by the pair of clip shoulders 21 The flange 31 was supported and the rail 30 was fixed by pressing the base flange 31 with the fixing clip 22 fastened to the fastening hole 21a of the clip shoulder 21 at this time.

In addition, the pair of clip shoulders 21 are spaced apart by the gap to provide one more pair so that both rails 30 may be supported on the sleepers 10 through the clip shoulders 21, respectively.

On the other hand, as the sleeper 10 has been recently used thermoplastic recycled synthetic resin sleepers 10 produced by recycling waste plastics such as PE (polyetylene) in terms of the use of environmentally friendly materials and strength reinforcement.

However, when the recycled synthetic resin is used as the material of the sleeper 10, twisting occurs in the sleeper 10 during the cooling process after injection molding, and its shape is not appropriate, and the coupling force between the sleeper 10 and the clip shoulder 21 There is a problem that there is a risk that the clip shoulder 21 is detached during frequent transmission of vibrations and loads due to the weakness of the railway vehicle.

In addition, since the clip shoulder 21 is inserted in the vertical direction, the rails 30 supported by the clip shoulder 21 are also installed in the vertical direction, so that the wheels W and the rails of the railroad vehicle having a slightly inclined step surface The contact area between the 30 is limited to a portion, and accordingly, there is a problem that uneven wear occurs on the answer surface of the wheel W, and the rail 30 does not stably support the wheel W.

The present invention has been proposed to solve the problems described above, in the sleeper for supporting the rail on the roadbed and the fastening device for fixing the rail to the sleeper, during the molding production to prevent deformation of the sleeper and molding Once it is possible to increase the strength of the sleeper, of course, to provide a rail sleeper that can stably support the wheel while preventing the wear of the wheel.

To this end, a rail sleeper according to the present invention includes a sleeper for supporting a rail on a roadbed and a sleeper for a rail including a fastening device for fixing the rail to the sleeper, wherein one end of the rail supports the lower part of the rail. A plurality of fastening devices comprising a clip shoulder protruding from the support piece and a fixing piece extending downward from the lower surface of the clip shoulder; A reinforcement frame coupled to the plurality of fixing pieces, and the reinforcement frame coupled thereto; And an outer frame which is injection molded to surround the fixing piece and has an outer shape of a sleeper shape.

At this time, the fixing piece is preferably a ring or tubular fixing piece having a hollow portion in which the reinforcing frame is fitted.

In addition, the pair of the fastening device for supporting the rail from the left and right side includes an outer fastening device positioned in the outer direction of the track and an inner fastening device positioned in the inner direction of the track, the clip constituting the outer fastening device It is preferable that the support piece of the shoulder is provided at a position higher than the support piece of the clip shoulders constituting the inner fastening device, so that the rail is inclined in the inward direction of the track.

In addition, the reinforcement frame is preferably composed of two sub reinforcement frames divided evenly and a connecting frame connecting between the two sub reinforcement frames adjacent to each other.

In addition, the connection frame is preferably made of an insulating material.

In addition, the sub reinforcement frames respectively coupled to both sides of the connection frame is preferably coupled in a direction inclined toward the upper side away from the connection frame.

In addition, the connecting frame is provided with insertion protrusions protruding to both sides with respect to the center point, respectively, the insertion protrusion is preferably made in the shape inclined toward the upper side toward the direction away from the center point of the connection frame.

In addition, it is preferable that a color layer of an insulating material having a predetermined color is coated on the surface of the exterior frame.

In accordance with the present invention as described above, by providing a reinforcing frame in the sleeper to prevent deformation of the sleeper during molding and to increase the strength of the sleeper after molding.

In addition, the rail is also inclined by the inclined clip shoulder, so that the contact area between the wheel and the rail increases, thereby stably supporting the wheel while preventing uneven wear of the wheel.

Hereinafter, a rail sleeper according to a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a front sectional view showing a rail sleeper according to a first embodiment of the present invention, Figure 3 is a partially enlarged view showing a rail sleeper according to a first embodiment of the present invention, Figure 4 is An exploded perspective view showing a sleeper for a rail according to an embodiment.

First, as can be seen through Figures 2 and 3, the rail sleepers according to the first embodiment of the present invention, the sleeper 110 and the rail (110) for largely supporting the rail 30 on the roadbed ( 30 is composed of a plurality of fastening device 120 for fixing to the sleeper 110.

In addition, the sleeper 110 is applied to the exterior frame 112 and the exterior frame 112 constituting the exterior of the reinforcement frame 111 and the reinforcement frame 111 coupled to the plurality of fixing pieces 121. It consists of a colored layer 113, the fastening device 120 is composed of a clip shoulder 122 (clip shoulder) and the fixing piece 121, respectively.

Therefore, the present invention provides a rail 30 to the reinforcement frame 111, the fastening device 120 is provided with a support force from the sleeper 110 made of the outer frame 112 and the color layer 113 is stable and robust. Fix it.

Particularly, in the present invention, even though the outer frame 112 made of recycled synthetic resin such as PE is injected and cooled after injection molding, the outer frame 112 serves as a core. As well as preventing the deformation, it is possible to increase the strength of the entire sleeper 110 by the reinforcing frame 111.

In addition, since the fixing piece 121 constituting the fastening device 120 is firmly supported by the reinforcing frame 111, thereby allowing the rail 30 placed on the fastening device 120 to be firmly supported.

In more detail, the fastening device 120 is a means for fixing the rail rail 30 to the sleeper 110, and extends downward from the lower surface of the clip shoulder 122 and the clip shoulder 122 It is made of a fixed piece 121 is installed, it is possible to support one rail 30 by using a pair of fastening devices 120 provided on each of both ends of the lower side of the rail (30).

At this time, the clip shoulder 122 has a support piece 122a for supporting the lower portion (ie, the base flange 31) of the rail 30 at one end thereof so as to protrude from the pair of clip shoulders 122 facing each other. Both ends of the base flange 31 of the rail 30 are supported by the support piece 122a, respectively.

In addition, a clip fastening hole 122b is formed at the center side of the clip shoulder 122 so that the fastening clip (see 22 in FIG. 1) is fastened to the clip fastening hole 122b so that the elastic force is provided. The fixing clip 22 fixes the base flange 31 of the rail 30 by pressing.

And, the fixing piece 121 is installed extending in the lower direction of the clip shoulder 122, as can be seen through Figure 4, it consists of a ring or tubular shape having a hollow portion 121a therein, the fixing piece When the reinforcement frame 111 is welded in the state where the reinforcement frame 111 is fitted, the reinforcement frame 111 and the fixing piece 121 are joined to each other.

However, since the cross-sectional shape of the reinforcement frame 111 is an example, the fixing piece 121 to which the reinforcement frame 111 is fitted is also made of a square shape.

However, the fixing piece 121 may be deformed as much as the shape of the reinforcing frame 111, and the fixing piece 121 may have various shapes as long as the reinforcing frame 111 may be joined and supported in addition to the tubular shape. It is possible.

Sleeper 110 is a means for supporting the rail 30 through the fastening device 120, the outer frame 112 constituting the reinforcement frame 111 embedded in the inner center and the exterior of the reinforcement frame 111. And a color layer 113 applied to the exterior frame 112.

Two pairs of fasteners 120 are installed in the one sleeper 110, and the pair of fasteners 120 supports one rail 30 so that the two pairs of fasteners 120 are gauged. Each pair of rails 30 is spaced apart by a track gage.

The rail 30 is supported through a rail pad (RP) as necessary.

At this time, the reinforcement frame 111 used as the core is most preferably made of steel for the prevention of torsion of the outer frame 112, the strength reinforcement of the sleeper 110 and the possibility of welding with the fastening device 120. , Similar to the outer shape of the sleeper 110 has a square cross section.

However, since the inside of the reinforcing frame 111 is empty, it is advantageous to reduce the cost of materials and, of course, to improve the yield due to the weight reduction when manufacturing the sleeper 110.

The outer frame 112 is made of recycled thermoplastic synthetic resin such as polyethylene (PE: polyethylene), which is environmentally friendly and has high strength and corrosion resistance, and the bottom surface is filled with gravel or sand placed on the roadbed to stably support the roadbed. A plurality of coupling grooves 122a are formed.

The exterior frame 112 may be manufactured by injecting the fastening device 120 and the reinforcement frame 111 coupled to each other in a molding mold having the same shape as the exterior frame 112 and then injecting a molten regenerated synthetic resin.

It has already been described above that deformation does not occur in the exterior frame 112 by the reinforcing frame 111 provided therein during cooling at room temperature in order to solidify the shape of the exterior frame 112 at the time of manufacture.

The color layer 113 is manufactured by applying a resin having a specific color selected to the surface of the exterior frame 112, and the color layer 113 increases the aesthetics of the sleeper 110 and is located inside the color layer 113. It protects the outer frame 112, and further fills the fine gap between the fastening device 120 and the outer frame 112 to prevent the minute shaking of the fastening device 120 by vibration.

The manufacturing process for applying the color layer 113 will be described below.

On the other hand, when the fastening device 120 is fixed to the sleeper 110 as described above and manufactured integrally, the base of the rail 30 on the support pieces 122a of the pair of fastening devices 120 disposed to face each other. The rails 30 are hypothesized so that the flange 31 is raised, and then the fastening clip (see 22 in FIG. 1) is fastened to the clip fastening hole 122b of the clip shoulder 122 so as to be rotatable.

Then, the fixing clip 22 having an elastic spring (not shown) receives the elastic force to press the edge of the base flange 31 of the rail 30 to fix the rail 30. Since the configuration of the fixing clip 22 is already known through the Utility Model Registration No. 204452, a detailed description thereof will be omitted.

Hereinafter, a rail sleeper according to a second embodiment of the present invention will be described with reference to the accompanying drawings.

However, the first embodiment of the present invention described above is a rail 30 is fixed horizontally by the sleeper 110 and the fastening device 120, the second embodiment of the present invention is a rail 30 There is a difference in that it is fixed so as to be inclined at a predetermined angle θ toward the inside of the line, and others are substantially the same or similar.

Therefore, hereinafter, redundant description will be omitted.

5 is a front sectional view showing a sleeper for a rail according to a second embodiment of the present invention.

As shown in FIG. 5, the sleepers for rails according to the second embodiment of the present invention have a plurality of sleepers 110 for supporting the rails 30 on the roadbed and a plurality of rails for fixing the rails 30 to the sleepers 110. It consists of two fasteners (120).

And, each fastening device 120 is composed of a clip shoulder 122 and the fixing piece 121, the sleeper 110 is a reinforcing frame 111 'and the reinforcing frame coupled to the plurality of fixing pieces 121 An exterior frame 112 constituting the exterior of the (111 ') and a color layer 113 applied to the exterior frame 112.

Here, the fastening device 120 is the same as the first embodiment of the present invention in that it consists of a clip shoulder 122 and the fixing piece 121.

However, the reinforcing frame 111 'constituting the sleeper 110 is between two equally divided sub reinforcing frames 112a' and 112b 'and two adjacently arranged sub reinforcing frames 112a' and 112b '. There is a difference in that it is made of a connection frame 113 'connecting each other.

In addition, the connection frame 113 'includes insertion protrusions 113a' and 113b 'protruding to both sides with respect to the center side of the body, respectively, and the insertion protrusions 113a' and 113b 'are connected to the connection frame 113. It is characterized in that it is formed in a shape inclined upward toward the direction away from the center point of the ').

Therefore, when the insertion protrusions 113a 'and 113b' of the connecting frame 113 'are fitted to the sub reinforcement frames 112a' and 112b ', respectively, the inserted sub reinforcement frames 112a' and 112b 'are also terminated. Increasingly inclined to the upper side, accordingly, the fastening device 120 coupled to the sub-reinforcement frame (112a ', 112b') is inclined toward the center side of the track.

As a result, as the fastening device 120 is inclined, the rails 30 supported by the fastening device 120 are also inclined toward the inner side of the track, so that the entire wheel (W) answering surface of the railroad vehicle having the inclined rails 30 is inclined. Evenly contact

Therefore, as well as preventing uneven wear of the wheel W answering surface, the rail 30 can support the wheel W more stably.

However, the connection frame 113 'is preferably made of an insulating material, which insulates the sub reinforcement frames 112a' and 112b 'made of a metal material, thereby providing power to the feedback circuit system. This is to prevent a short circuit accident caused by a short circuit accident in a vehicle or other various defects more reliably.

In addition, in the above, the sub reinforcement frames 112a 'and 112b' are connected to each other by the connection frame 113 ', but the present invention is not limited thereto, and the sub reinforcement frames 112a' and 112b 'are not limited thereto. As long as it can be installed to be inclined upward, the sub reinforcement frames 112a 'and 112b' may be directly contacted with each other, or may be connected by using other means.

Hereinafter, a rail sleeper according to a third embodiment of the present invention will be described with reference to the accompanying drawings.

The third embodiment of the present invention supports and fixes the rail 30 to be inclined at an angle toward the inside of the track without inclining the reinforcing frame 111 'like the second embodiment of the present invention described above. There is a characteristic.

6 is a front sectional view showing a sleeper for a rail according to a third embodiment of the present invention.

As shown in FIG. 6, the sleepers for rails according to the third embodiment of the present invention include sleepers 110 and fastening devices 120 and 120 ′, respectively, as described above. Among the pair of fastening devices 120 and 120 'for supporting, the height of the fastening device 120' located in the outer direction of the line and the support pieces 122a and 122a 'of the fastening device 120 located in the inner direction Are different.

That is, when the fastening device 120 'positioned in the outer direction of the track is called the outer fastening device 120', and the fastening device 120 located in the inner direction of the track is called the inner fastening device 120, The support piece 122a 'of the clip shoulder 122' constituting the fastening device 120 'is installed at a position higher than the support piece 122a of the clip shoulder 122 constituting the inner fastening device 120, Rail 30 is inclined in the direction of the track.

It is preferable that the angle θ in which the rail 30 is inclined in the inward direction of the track is approximately 1 ° or more and 2 ° or less, and when the angle θ of the rail 30 is less than 1 °, the effect of inclining is generated. Otherwise, when the angle θ of the rail 30 exceeds 2 °, the rail 30 does not stably support the wheel W, and uneven wear occurs on the answer surface of the wheel W as in the prior art. .

On the other hand, in order to enable this, the fixing piece 121 'of the outer fastening device 120' and the fixing piece 121 of the inner fastening device 120 are different from each other as shown in FIG. Therefore, when the reinforcing frame 111 is fitted to each fixing piece 121, 121 ', the clip shoulder 122' of the outer fastening device 120 'is larger than the clip shoulder 122 of the inner fastening device 120. The height of the protrusions, so that the support piece (122a ') of the outer fastening device (120') is located higher.

Of course, while the other parts of the outer fastening device 120 'and the inner fastening device 120 are all the same, the mounting height of the support piece 122a' of the outer fastening device 120 'is supported by the inner fastening device 120. Various other methods may also be used, such as a method of making it higher than the piece 122a.

Hereinafter, the manufacturing method of the sleeper for rails which concerns on this invention as mentioned above is demonstrated.

First, two pairs of fastening devices 120 supporting one rail 30 are prepared, and the reinforcing frame 111 is fitted to penetrate each of the fixing pieces 121 of the two fastening devices 120. .

Next, the distance between the pair of fasteners 120 adjacent to each other to properly support the rail 30 is adjusted, and the distance between the pair of fasteners 120 is determined according to the determined track gage. Adjust. In this state, the reinforcing frame 111 and the fixing pieces 121 of the respective fastening devices 120 are welded to each other.

When the fastening device 120 and the reinforcement frame 111 are coupled by welding, the combined fastening device 120 and the reinforcement frame 111 are inserted into the mold. Molding frame is made of the same shape as the outer frame (112).

Next, after pouring the regenerated synthetic resin in the molten state to the upper mold, the upper frame is closed and cooled at room temperature for a predetermined time in a compressed state so that the exterior frame 112 is solidified.

In this process, the fastening device 120, the reinforcing frame 111 and the outer frame 112 are integrally formed, and the clip shoulder 122 of the fastening device 120 is exposed to the upper end of the outer frame 112.

When the molding is completed through cooling of a predetermined time, the first molding process is completed by performing the demolding operation of opening the upper upper mold and taking out the finished product from the molding mold.

Subsequently, a secondary molding process for applying the color layer 113 to the surface of the primary molded outer frame 112 as described above is performed.

To this end, the primary molded product is placed on the secondary mold. Secondary molds are common lathes.

Next, a color resin in a molten state is applied to the surface of the primary molded product so as to cover all surfaces of the primary molded product.

After application | coating, the primary molded product to which the color resin was apply | coated using the press molding die is pressed, and it waits for a predetermined time until the apply | coated color resin hardens in that state.

After the cooling is completed after a predetermined time, the press molding mold is removed, and the secondary molded product is taken out, and the protrusions generated in the corners of the taken out secondary molded product are cut and removed to sleep the rail according to the present invention. To complete the production.

The specific embodiments of the present invention have been described above. However, the spirit and scope of the present invention is not limited to these specific embodiments, and various modifications and variations can be made without departing from the spirit of the present invention. Those who have it will understand.

Therefore, since the embodiments described above are provided to completely inform the scope of the invention to those skilled in the art, it should be understood that they are exemplary in all respects and not limited. The invention is only defined by the scope of the claims.

The present invention is provided with a reinforcing frame in the sleeper to prevent deformation of the sleeper during molding and to increase the strength of the sleeper after molding. In addition, the rail can be inclined to support the wheels stably while preventing uneven wear of the wheels.

Therefore, it is possible to prevent the various railway accidents in advance as well as to advance the development of the railway industry, it is possible to ensure the timing and stability of the railway vehicle.

1 is a front sectional view showing a sleeper for a rail according to the prior art.

Figure 2 is a front sectional view showing a sleeper for the rail according to the first embodiment of the present invention.

3 is a partially enlarged view showing a sleeper for a rail according to the first embodiment of the present invention.

Figure 4 is an exploded perspective view showing a sleeper for the rail according to the first embodiment of the present invention.

5 is a front sectional view showing a sleeper for a rail according to a second embodiment of the present invention.

6 is a front sectional view showing a sleeper for a rail according to a third embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

110: sleeper 111: reinforcement frame

112: exterior frame 113: color layer

120: fastening device 121: fixed piece

122: clip shoulder 122a: support piece

122b: clip fastener 30: rail

31: base flange W: wheel

Claims (8)

In the sleeper for rail comprising a sleeper for supporting the rail on the roadbed and a fastening device for fixing the rail to the sleeper, A plurality of fastening devices including a clip shoulder having a protruding support piece for supporting the lower portion of the rail at one end thereof, and a fixing piece having a hollow portion provided therein and extending downward from a lower surface of the clip shoulder; A reinforcing frame fitted to the hollow part of the fixing piece and welded to the fixing piece; To include the outer frame having an outer shape of the shape of the sleeper injection molded to surround the reinforcing frame and the fixed piece; The reinforcing frame is composed of two sub reinforcing frames divided evenly and a connecting frame of insulating material connecting between the two sub reinforcing frames adjacent to each other; The connecting frame has insertion protrusions protruding from both sides with respect to the center point, respectively, and the insertion protrusion has a shape inclined upward toward a direction away from the center point of the connection frame, on both sides of the connection frame. The sub reinforcement frame is coupled to each other, the sleeper for rails, characterized in that formed inclined toward the upper side away from the connecting frame. delete delete delete delete delete delete The method of claim 1, Rail sleepers, characterized in that the surface of the outer frame is coated with a colored layer of an insulating material having a predetermined color.

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