JP2019094735A - Sleeper with buckling prevention function and movement prevention function - Google Patents

Abstract

[Problem] To provide a sleeper in which processing is performed on the sleeper body during the sleeper manufacturing stage to enable the attachment of a device for preventing buckling or movement, and when the device is attached, pressing members at the top and bottom of the sleeper end are not required. [Solution] A sleeper body 100 of a sleeper with buckling and movement prevention functions of the present invention has a square hole penetrating from the top to the bottom at the end, a round hole penetrating to the square hole on the side, and a buckling prevention plate 200 inserted into the square hole, and an inner channel 310 of a coupling device 300 is fixed together with the buckling prevention plate 200 by a sleeper bolt 500 inserted into the round hole, and an outer channel 320 and two inner channels 310 of the coupling device 300 are fixed by a coupling bolt 600. [Selected Figure] Figure 2

Description

  The present invention relates to a sleeper, and more particularly to a sleeper on which a device having a buckling prevention function and a movement prevention function can be mounted.

  In order to ensure the safety of the operation of railway vehicles in railways, it is important to prevent the buckling and movement of the rails. In recent years, various buckling prevention devices and movement prevention devices for use in ballast roadbeds have been developed. As a method of fixing these devices to the sleeper, means for disposing a pressing member at the upper and lower portions of the end of the sleeper and securing it with a tightening tool is exclusively adopted (see Patent Documents 1 and 2). These devices add additional resistance to the track resistance that the sleeper has and, by strengthening the track resistance, prevent rail buckling and movement. For track resistance, resistance in the track direction may be called track longitudinal resistance, and resistance in the longitudinal direction of sleepers may be called track lateral resistance.

Patent No. 4512661 Patent No. 5852762

  In order to add roadbed resistance to the sleeper, the buckling prevention device and the movement prevention device must be strongly fixed to the sleeper. The buckling prevention device and the movement prevention device by the pressing member which enables strong fixation have a problem that the number of parts is large and the number of operation steps is required for installation.

  Therefore, according to the present invention, from the manufacturing stage of the sleeper, the body of the sleeper is processed to enable attachment of a device for preventing buckling and movement, and when attaching the device, the end of the sleeper is attached. An object of the present invention is to provide a sleeper which eliminates the need for upper and lower pressing members.

  The pillow with a buckling prevention function and a movement prevention function of the present invention achieves the above-mentioned object, and the means of claim 1 is an end face of the sleeper with a square hole penetrating from the upper surface to the lower surface, and an end face And the buckling prevention plate inserted into the square hole, the buckling prevention plate includes a female screw hole, and is inserted into the female screw hole and the circular hole. The buckling prevention plate is fixed by a sliding bolt.

  In the means according to claim 2 of the present invention, the buckle with the buckling prevention function and the movement prevention function according to claim 1 includes a connecting device including an inner channel and an outer channel, and the inner channel is fixed by the pillow bolt. The outer channel and the two inner channels may be fixed by connecting bolts.

  In the buckling preventing function and the movement preventing sleeper of the present invention, the buckling preventing prevention and the movement preventing sleeper with the configuration according to claim 1 can be prevented from buckling when attaching a member that applies the track resistance to the cushion. Removal of crushed stone down to the lower surface of the functional and movement-preventive sleeper is not required. In addition, the number of parts and the number of man-hours can be reduced as compared with the conventional device when the roadbed lateral resistance is added.

  In addition, according to the configuration of claim 2, it is possible to reduce the number of parts and the number of man-hours in comparison with the conventional device when adding the track vertical resistance by the configuration of claim 2 of the present invention. Do.

It is a perspective view of a pillow with a buckling prevention function and a movement prevention function. It is a whole perspective view which shows the procedure of attaching a buckling prevention plate and a connection apparatus to a pillow with a buckling prevention function and a movement prevention function. It is a perspective view of an inner channel. It is a perspective view of an outer channel. It is a rear view of an outer channel. It is a schematic sectional drawing of the buckle with a buckling prevention function and a movement prevention function which attached the buckling prevention plate and the connection apparatus. It is an enlarged view of the head of the buckling prevention plate in FIG. It is a schematic sectional drawing of the screwing part of an inner channel and an outer channel. It is a whole perspective view of a buckle with a buckling prevention function and a movement prevention function which attached a buckling prevention plate and a connecting device.

  Hereinafter, an embodiment for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of the sleeper main body 100 in a sleeper with a buckling prevention function and a movement prevention function, and a central portion of the sleeper main body 100 is a schematic view. The sleeper main body 100 includes an angular hole penetrating from the upper surface to the lower surface at an end slightly inside from the end surface, and a circular hole penetrating from the end surface to the angular hole. The pillow with a buckling prevention function and a movement prevention function includes a buckling prevention plate 200 described later, and the square hole is provided for inserting the buckling prevention plate 200, and the round hole is a buckling prevention plate 200. It is provided to insert a bolt for fixing. As shown in FIG. 1, it is preferable to protect the square holes and the round holes by providing the square hole sleeve liner 110 in the square holes and the round hole sleeve liner 120 in the round holes.

  In order to ensure stable strength over a long period of time, the square hole sleeve liner 110 and the round hole sleeve liner 120 are required to have weatherability and corrosion resistance. Examples of the material of the rectangular hole sleeve liner 110 and the round hole sleeve liner 120 include stainless steel and carbon fiber, and light metals such as aluminum are also suitable.

  The sleeper main body 100 shown in FIG. 1 is provided with two square holes and round holes at one end, and four square holes and round holes in one sleeper main body 100. FIG. 1 is an example. There is no limitation on the number of square holes and round holes, and the square holes and round holes may be paired. The pillow with a buckling prevention function and a movement prevention function of the present invention may have at least one pair of square holes and round holes in one sleeper body 100.

  FIG. 2 is an overall perspective view showing a procedure for attaching the buckling prevention plate 200 and the connecting device 300 to the sleeper main body 100 having the buckling prevention function and the movement prevention function. Although the crushed stone is omitted in FIG. 2, the buckling preventing function and the movement preventing sleeper of the present invention have a buckling preventing plate 200 and a connecting device 300 which are members for applying a track resistance to the sleeper main body 100. When attaching the crusher, it is sufficient to remove the crushed stone at least to the position of the round hole of the sleeper main body 100, and the removal of the crushed stone to the lower surface is unnecessary. Of course, the anti-buckling plate 200 and the connecting device 300 may be mounted before completely laying the crushed stone.

  The buckling prevention plate 200 includes a head portion 201 and a female screw hole 202, and the lower half portion 203 is restrained by crushed stone. The buckling prevention plate 200 is inserted into the square hole of the sleeper main body 100. The shape of the tip of the lower half 203 is sharp. Even if there is crushed stone, the buckling prevention plate 200 can be attached to the sleeper main body 100 by tapping the head 201. The female screw hole 202 is tapped and can be screwed with a bolt. The buckling prevention plate 200 is fixed to the sleeper main body 100 by a bolt inserted into the female screw hole 202 and the round hole. The buckling prevention plate 200 in which the lower half portion 203 is restrained by crushed stone receives the load in the longitudinal direction of the sleeper main body 100 together with the sleeper main body 100. In other words, the anti-buckling plate 200 adds road lateral resistance to the sleeper main body 100 on which the anti-buckling plate 200 is mounted.

  Coupling device 300 comprises an inner channel 310 and an outer channel 320. The inner channel 310 and the outer channel 320 are both U-shaped as viewed from the orbital direction when attached, and the inner channel 310 is attached to the side surface of the sleeper body 100. The outer channel 320 includes one front and another rear with respect to the two inner channels 310 attached to the two sleeper bodies 100 respectively. The bolt secures the inner channel 310 to the sleeper body 100 and the other bolt secures the outer channel 320 and the two inner channels. The coupling device 300 in which the inner channel 310 is fixed to the sleeper main body 100 and the outer channel 320 and the two inner channels are fixed disperses the load in the track direction that the sleeper main body 100 receives. In other words, the connecting device 300 applies the track longitudinal resistance to the sleeper main body 100 on which the connecting device 300 is mounted.

  FIG. 3 is a perspective view of the inner channel 310. The inner channel 310 is provided with a bolt insertion hole 311 for sleepiness near the center and a bolt insertion hole 312 for connection at an end slightly inside from both end faces. The bolt insertion holes 311 for sleepers correspond to the round holes of the sleeper main body 100. When there are a plurality of circular holes in the sleeper main body 100, the distance between the through-hole bolt insertion holes 311 coincides with the distance between the circular holes in the sleeper main body 100. Further, the periphery of the connecting bolt insertion hole 312 on the front surface side of the inner channel 310 is provided with a sawtooth-like outer occlusal surface 313.

  FIG. 4 is a perspective view of the outer channel 320. The outer channel 320 is provided with a slit 321 opened at the end face at both ends. The inner channel 310 and the outer channel 320 are fixed by inserting bolts into the connecting bolt insertion holes 312 and the slits 321. The lengths of the inner channel 310 and the outer channel 320 are determined according to the installation interval of the sleeper main body 100. However, since the insertion portion of the bolt is the slit 321, even if the lengths of the inner channel 310 and the outer channel 320 are constant, the installation interval of the sleeper main body 100 can be accommodated to some extent. When the installation interval of the sleeper main body 100 is wide, the overlap of the inner channel 310 and the outer channel 320 may be reduced, and when the installation interval of the sleeper main body 100 is narrow, the overlap of the inner channel 310 and the outer channel 320 may be increased.

  FIG. 5 is a rear view of the outer channel 320. The front and back of the outer channel 320 is provided with a serrated inner occlusal surface 322. The abutment between the outer occlusal surface 313 of the inner channel 310 and the inner occlusal surface 322 of the outer channel 320 prevents slippage of the inner channel 310 and the outer channel 320.

  It is preferable to use a washer 400 for strong fixation with bolts of the sleeper main body 100 and the buckling prevention plate 200, the sleeper main body 100 and the inner channel 310, and the inner channel 310 and the outer channel 320. In FIG. 2, three types of washers 400 are used. The three types of washers 400 are a spring washer 410, a plain washer 420, and a locking washer 430. The illustration is one example, and the number, type, and combination of the washers 400 can be arbitrarily selected in consideration of the vibration and impact of the installation site.

  The buckle with the buckling prevention function and the movement prevention function can simultaneously fix the inner channel 310 when the sleeper main body 100 and the buckling prevention plate 200 are fixed. For fixing the sleeper main body 100, the buckling prevention plate 200, and the inner channel 310, a sleeper bolt 500 is used. The stud bolt 500 is inserted into the washer 400, the stud bolt insertion hole 311 of the inner channel 310, and the round hole of the staple body 100, and is screwed to the female screw hole 202 to prevent the buckling prevention plate 200 and the inner. The channel 310 is fixed to the sleeper body 100.

  For fixing the inner channel 310 and the outer channel 320, a connecting bolt 600 and a square nut 700 are used. The connection bolt 600 is inserted through the washer 400, the slit 321 of the outer channel 320 and the connection bolt insertion hole 312 of the inner channel 310, and fixes the inner channel 310 and the outer channel 320 by screwing with the square nut 700.

  FIG. 6 is a schematic cross-sectional view of a pillow with a buckling preventing function and a movement preventing function to which the buckling preventing plate 200 and the coupling device 300 are attached. In FIG. 6, together with the buckling prevention plate 200, the inner channel 310 is also fixed to the sleeper main body 100, but by using a sleeper bolt having a length different from that of the illustrated sleeper bolt 500, the inner It is also possible to fix the sleeper main body 100 and the buckling prevention plate 200 except for the channel 310. If the movement prevention function is unnecessary, in other words, if the addition of the track vertical resistance is not necessary, a configuration is considered in which the inner channel 310 is removed and the sleeper main body 100 and the buckling prevention plate 200 are fixed. It should.

  The rectangular hole sleeve liner 110 has the bent upper edge 111 and lower edge 112 embedded in the sleeper body 100. The bending of the upper edge 111 and the lower edge 112 prevents the square hole sleeve liner 110 from falling off the sleeper body 100.

  Also in the round hole sleeve liner 120, the outer edge 121 and the inner edge 122 bent in the same manner as the square hole sleeve liner 110 are embedded in the sleeper body 100. The bending of the outer edge 121 and the inner edge 122 prevents the square hole sleeve liner 110 from falling off the sleeper body 100.

  The anti-rotation washer 430 shown in FIG. 6 includes a holding portion 431, a circularly curved portion 432, and a seat portion 433. The seat portion 433 is normally curved, and is in a flat state by being crimped to the mounting portion. The anti-rotation washer 430 suppresses rotation of the driving bolt 500 after tightening by the elasticity of the circular curved portion 432 while the holding portion 431 holds the driving bolt 500. In addition, an elastic restoring force is generated in the bearing surface portion 433 that is in a flat state by crimping to the mounting portion, and the frictional force of the bearing surface portion 433 is increased, and the slip resistance against vibration from the track and shock is increased. Do.

  FIG. 7 is an enlarged view of the periphery of the head 201 in FIG. The anti-buckling plate 200 is provided with a step 204 on the lower side of the head portion 201 that engages with the square hole sleeve liner 110. When the step portion 204 is fitted to the square hole sleeve liner 110 and the lower surface of the head 201 is brought into close contact with the upper edge 111 of the square hole sleeve liner 110 as shown in FIG. The positions of the round holes of the hook body 100 are aligned, and the insertion and screwing of the studs 500 can be facilitated. Further, the upper edge portion 111 prevents damage to the sleeper main body 100 when the head portion 201 of the buckling prevention plate 200 is hit.

  FIG. 8 is a schematic cross-sectional view of the screwed portion of the inner channel 310 and the outer channel 320. Here, the rotation preventing washer 430 suppresses the rotation of the connection bolt 600 after being tightened by the elasticity of the circularly curved portion 432 while the sandwiching portion 431 sandwiches the connection bolt 600. In addition, an elastic restoring force is generated in the bearing surface portion 433 that is in a flat state by crimping to the mounting portion, and the frictional force of the bearing surface portion 433 is increased, and the slip resistance against vibration from the track and shock is increased. Do. The illustration is one example, and the number, type, and combination of the washers 400 can be arbitrarily selected in consideration of the vibration and impact of the installation site.

  FIG. 9 is an overall perspective view of a buckle with a buckling prevention function and a movement prevention function attached with the buckling prevention plate 200 and the coupling device 300. The anti-buckling plate 200 applies road lateral resistance to the sleeper main body 100 on which the anti-buckling plate 200 is mounted. The coupling device 300 applies a track longitudinal resistance to the sleeper main body 100 on which the coupling device 300 is mounted. The present invention realizes the addition of track resistance to the sleeper without arranging the pressing members at the upper and lower ends of the end of the sleeper, and can reduce the number of parts and the number of steps compared to the conventional device. I assume.

  The present invention can be applied to a PC sleeper made of concrete by processing it without a bar. In addition, it is suitable for synthetic sleepers having high processing flexibility.

DESCRIPTION OF SYMBOLS 100 ... Sleepy body, 110 ... Sleeve liner for square holes, 111 ... Upper edge, 112 ... Lower edge, 120 ... Sleeve liner for round holes, 121 ... Outer edge, 122 ... Inner edge.
200: anti-buckling plate, 201: head, 202: female screw hole, 203: lower half, 204: step.
300 ... connection device, 310 ... inner channel, 311 ... bolt insertion hole for sleeper, 312 ... bolt insertion hole for connection, 313 ... outer occlusal surface, 320 ... outer channel, 321 ... slit, 322 ... inner occlusal surface.
400: Washer, 410: Spring washer, 420: Flat washer, 430: Anti-rotation washer, 431: Clamping portion, 432: Circular curved portion, 433: Seat surface portion.
500 ... Bolts for sleepers.
600 ... bolt for connection.
700 ... square nut.

The pillow with a buckling prevention function and a movement prevention function of the present invention achieves the above-mentioned object, and the means of claim 1 is characterized in that the end portion has a square hole penetrating from the upper surface to the lower surface, and And a buckling prevention plate inserted into the square hole, the buckling prevention plate including a female screw hole, and a pillow which is inserted into the female screw hole and the circular hole. In the buckling preventing and moving preventing device in which the buckling preventing plate is fixed by a bolt , the square hole is provided at an end portion of the sleeper main body, and the round hole is provided at an end face of the sleeper main body. Do.

Claims (2)

A corner hole penetrating from the upper surface to the lower surface at the end,
A round hole penetrating to the square hole at the end face,
And a buckling prevention plate inserted into the square hole,
The anti-buckling plate includes a female screw hole, and the anti-buckling plate is fixed by a blind bolt inserted into the female screw hole and the round hole. A function sleeper. A coupling device comprising an inner channel and an outer channel, wherein the inner channel is fixed by the sleeper bolt, and the outer channel and the two inner channels are fixed by the connecting bolt. A pillowcase with a buckling prevention function and a movement prevention function described in 1.

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