JP2022029004A - Rail junction body - Google Patents

Abstract

To provide a rail junction body which can suppress an influence due to a fault of a manufacturing accuracy of a rail.SOLUTION: A rail junction body 1 is for connecting rails 100 adjacent to each other in a longitudinal direction. The rail junction body 1 includes a body 2 for accommodating each end of the rail 100, a vertical positioning mechanism 6 which can be vertically positioned with respect to the body 2, and a bias member 5 which is provided in the vertical positioning mechanism 6 and biases the rail 100 downward. The body 2 has a tapered part 4 which transversely guides the rail 100 that is biased downward.SELECTED DRAWING: Figure 2

Description

The present invention relates to a rail joint connecting adjacent rails in the longitudinal direction.

As shown in FIG. 9, adjacent rails 100F and 100R are connected to each other in the longitudinal direction for the rail on which the suspension vehicle travels, as shown in FIG. Then, the rail joint J is used to connect the adjacent rails 100F and 100R in the longitudinal direction.

As a conventional rail joint, a rail connection structure configured to connect rails diagonally with respect to a traveling direction is known (see, for example, Patent Document 1). According to Patent Document 1, this connection has the effect of smoothing the running.

Japanese Unexamined Patent Publication No. 2001-278575

By the way, the rail joint (rail connection structure) described in Patent Document 1 does not take into consideration the disturbance of rail manufacturing accuracy. For example, as shown in FIG. 9, in the actual rails 100F and 100R, the angle of the corner portion 104 is often not constant due to the disturbance of the manufacturing accuracy.

In the two rails 100F and 100R shown in FIG. 9, when the angles of the corner portions 104 are different, the two rails 100F and 100R are suspended as shown in FIG. 10, which is a front view after connecting the two rails 100F and 100R in the longitudinal direction. Steps s are generated in the traveling base plate and its vicinity, which are the traveling locations of the vehicle, and such steps s hinder the smooth traveling of the suspended vehicle. As described above, the influence of the disturbance of the manufacturing accuracy of the rails 100F and 100R cannot be ignored when connecting the rails 100F and 100R in the longitudinal direction.

Therefore, an object of the present invention is to provide a rail joint capable of suppressing the influence of disturbance of rail manufacturing accuracy.

In order to solve the above problems, the rail joint according to the first invention is a rail joint that connects adjacent rails in the longitudinal direction.
A main body that accommodates each end of the rail,
A vertical positioning mechanism that can be positioned vertically with respect to the main body,
It is provided with an urging member provided in the vertical positioning mechanism to urge the rail downward.
The main body has a tapered portion that guides the downwardly urged rail to the side.

Further, the rail joint according to the second invention has a tapered portion in the rail joint according to the first invention.
A left taper that touches the lower left outer corner of the rail and guides the rail to the right.
It has a right taper that is in contact with the lower right outer corner of the rail and guides the rail to the left.

Further, the rail joint according to the third invention has a curved convex portion in which the urging member in the rail joint according to the first or second invention engages with a hole formed in the top surface of the rail. Is.

In addition, the rail joint according to the fourth invention has a vertical positioning mechanism in the rail joint according to any one of the first to third inventions.
A board with screw holes formed in the vertical direction,
It has a vertical positioning bolt that can adjust the vertical position of the board.
The vertical positioning bolt
The screw portion screwed into the screw hole of the substrate and
With the largest diameter head,
A cylindrical portion having the smallest diameter located between the threaded portion and the head is provided.
The top plate of the main body
A vertical position adjustment hole with a larger diameter than the cylindrical part and a smaller diameter than the threaded part,
It is provided with a bolt attachment / detachment hole having a diameter larger than that of the screw portion and a diameter smaller than that of the head.
The vertical position adjusting hole and the bolt attachment / detachment hole communicate with each other to the extent that the cylindrical portion can be moved.

According to the rail joint, since the rail to be connected is guided sideways by the tapered portion, the shape of the rail can be corrected and the influence of the disturbance of the manufacturing accuracy of the rail can be suppressed.

It is a perspective view which shows the state which connects the adjacent rails in the longitudinal direction in the rail joint which concerns on embodiment of this invention. It is an enlarged cross-sectional perspective view which shows the central cross section of the rail joint body. It is an enlarged sectional view which shows the central longitudinal section of the rail joint body. It is an enlarged cross-sectional view with a rail inserted in the rail joint. It is an enlarged cross-sectional view of the state where the rail of FIG. 4 is urged downward. It is an enlarged vertical sectional view of the state of FIG. An example showing an example in which the rail joint has a bolt attachment / detachment hole is shown, and is an enlarged cross-sectional perspective view showing a central cross section before the vertical positioning bolt is installed in the vertical position adjusting hole. An example showing an example in which the rail joint has a bolt attachment / detachment hole is shown, and is an enlarged cross-sectional perspective view showing a central cross section after the vertical positioning bolt is installed in the vertical position adjusting hole. It is a perspective view which shows the state which connects the adjacent rails in the longitudinal direction in the conventional rail joint body. It is a front view of the rail connected in the longitudinal direction by the conventional rail joint.

Hereinafter, the rail joint according to the embodiment of the present invention will be described with reference to the drawings. In the following, the longitudinal direction of the rail to which the rail joint is connected is the front-rear direction, and the direction on the horizontal plane perpendicular to the front-rear direction is the left-right direction.

As shown in FIG. 1, the rail joint 1 connects two rails 100 (for example, a rail for suspension by a suspension wheel) adjacent to each other in the longitudinal direction (front-rear direction). For this connection, the rail joint 1 holds the two rails 100 with the rails 100 inserted into the two inlets formed before and after the rail joint 1. Here, since each rail 100 is a track of a suspended vehicle (not shown), it has the following configuration. That is, each rail 100 has a rail top plate 101, left and right rail side plates 102 hanging from both side ends of the rail top plate 101, and a suspension vehicle running on the upper surface extending inward from the lower ends of these left and right rail side plates 102. It has left and right traveling base plates 103 that can be formed, and a derailment prevention unit 106 that rises from the inner ends of these left and right traveling base plates 103. When the two rails 100 have a large disturbance in the manufacturing accuracy, particularly when the angles of the rail side plate 102 and the traveling base plate 103 have a large disturbance in the manufacturing accuracy, the conventional rail joint Then, the influence of this disorder of manufacturing accuracy could not be suppressed. On the other hand, the rail joint 1 according to the embodiment of the present invention can not only connect the two rails 100 but also suppress the influence of the disturbance of the manufacturing accuracy. Hereinafter, the configuration of the rail joint 1 according to the embodiment of the present invention will be described in detail.

As shown in FIG. 1, the rail joint 1 includes a main body 2 that accommodates each end of the two rails 100, and a vertical positioning mechanism 6 that can be positioned in the vertical direction with respect to the main body 2. Have. Further, the rail joint 1 includes an urging member 5 provided in the vertical positioning mechanism 6 to urge the two rails 100 downward.

As shown in FIG. 2, the main body 2 has a tapered portion 4 that guides the two downwardly urged rails 100 to the side. The main body 2 includes a top plate 21, left and right side plates 22L and 22R hanging from both side ends of the top plate 21, and two rails 100 extending inward from the lower ends of these left and right side plates 22L and 22R (specifically). Has left and right receiving plates 23L and 23R on which the left and right traveling base plates 103) are placed. The tapered portion 4 has a left taper 4L formed at an internal angle between the left side plate 22L and a left receiving plate 23L, and a right taper 4R formed at an internal angle between the right side plate 22R and the right receiving plate 23R. It consists of. The left taper 4L guides the lower left outer angle portion 104L of the two rails 100 to the right when the two rails 100 are urged downward. On the other hand, the right taper 4R guides the lower right outer angle portion 104R of the two rails 100 to the left side when the two rails 100 are urged downward.

The top plate 21 of the main body 2 is formed with a hole 26 penetrating from the upper surface to the lower surface. Since this hole 26 is a space required for the vertical positioning mechanism 6 to position in the vertical direction with respect to the main body 2, it is hereinafter referred to as a vertical position adjusting hole 26. The vertical positioning mechanism 6 has a vertical positioning bolt 60 that penetrates the vertical position adjusting hole 26. That is, in the vertical positioning bolt 60, the head portion 61 is located above the vertical position adjusting hole 26, and the screw portion 63 is located below the vertical position adjusting hole 26. Further, the vertical positioning mechanism 6 has a substrate 65 in which screw holes to be screwed into the threaded portion 63 of the vertical positioning bolt 60 are formed in the vertical direction. Therefore, by rotating the head 61 of the vertical positioning bolt 60, the non-rotating substrate 65 rises or falls with respect to the main body 2. Since the head 61 does not damage the upper surface of the top plate 21 due to the rotation of the head 61, the vertical positioning mechanism 6 is a scratch-proof sheet made of resin or the like between the head 61 and the top plate 21. You may have 69.

As shown in FIG. 3, the urging member 5 is two leaf springs 50. Each leaf spring 50 has a mounting plate 51 attached to the upper surface of the substrate 65 by a pin 67, a vertical plate 52 formed by bending from the mounting plate 51 and located on the inlet side of the main body 2, and the vertical plate. It has an urging plate 53 which is formed by bending from 52 and inclines downward toward the inner side of the main body 2. Each urging plate 53 is formed with a stopper 54 at the tip thereof to prevent the rail 100 from being excessively inserted. Further, as shown in FIG. 6, each of the urging plates 53 has a curved convex portion 55 on the lower surface thereof that engages with a hole 105 formed in the upper surface (top surface) of the rail top plate 101 of the rail 100. Have. Each curved convex portion 55 is a curved surface having a smooth surface. As a result, the engagement and disengagement of the curved convex portion 55 with the hole 105 gives the user a click feeling, and the engagement and disengagement become easy.

Hereinafter, the operation of the rail joint 1 will be described.

In advance, the user raises the substrate 65 of the vertical positioning mechanism 6 sufficiently with respect to the main body 2, and inserts the rail 100 from each of the two inlets of the main body 2 as shown in FIG. As shown in FIG. 4, the main body 2 in which the ends of the two rails 100 are housed has the lower left and lower right outer corner portions 104L and 104R of the rail 100 due to the disturbance of the manufacturing accuracy of the rail 100. It is in contact with the left taper 4L and the right taper 4R, respectively. Here, since the substrate 65 is sufficiently raised, the two rails 100 are not sufficiently urged downward from the urging member 5.

Next, the user lowers the substrate 65 of the vertical positioning mechanism 6 with respect to the main body 2. Specifically, the user rotates the vertical positioning bolt 60 in a direction in which the screw portion 63 thereof comes out of the screw hole of the substrate 65. As a result, as shown in FIG. 5, the urging member 5 below the descending substrate 65 urges the rail 100 downward. In the rail 100 urged downward, the lower left outer angle portion 104L is guided downward and to the right by the left taper 4L, and the lower right outer corner portion 104R is guided downward and to the left by the right taper 4R. .. In other words, the left and right outer corner portions 104L and 104R of the rail 100 are guided toward the center while being guided downward. By this guidance, the lower surfaces of the left and right traveling base plates 103 are in close contact with the upper surfaces of the left and right receiving plates 23L and 23R, respectively. As a result, the shape of the rail 100 is corrected to the extent that the disorder of the manufacturing accuracy is canceled out.

On the other hand, the curved convex portion 55 shown in FIG. 3 lightly engages with the hole 105 of the rail top plate 101 with the end of the rail 100 inserted into the inlet of the main body 2. Then, as the substrate 65 of the vertical positioning mechanism 6 descends with respect to the main body 2, the curved convex portion 55 completely engages with the hole 105 of the rail top plate 101, as shown in FIG. The position where the rail 100 is inserted (position in the front-rear direction) is also corrected.

As described above, according to the rail joint 1, the rail 100 to be connected is guided sideways by the tapered portion 4, so that the shape of the rail 100 is corrected and the influence of the disturbance of the manufacturing accuracy of the rail 100 is exerted. It can be suppressed.

Further, since the tapered portion 4 has the left taper 4L and the right taper 4R, the shape of the connected rail 100 is corrected toward the center, so that the influence of the disturbance of the manufacturing accuracy of the rail 100 can be further suppressed.

Further, since the curved convex portion 55 of the urging member 5 engages with the hole 105 of the rail top plate 101, the position where the two rails 100 are inserted is also corrected, which is affected by the disturbance of the manufacturing accuracy of the rail 100. It can be further suppressed.

By the way, in the above-described embodiment, the installation of the vertical positioning bolt 60 in the vertical position adjusting hole 26 has not been described, but as shown in FIG. 7, the bolt attachment / detachment hole 27 communicating with the vertical position adjusting hole 26 allows the vertical positioning bolt 60 to move up and down. The vertical positioning bolt 60 may be installed in the position adjusting hole 26. Specifically, the vertical positioning bolt 60 has a large diameter in the order of the head 61, the screw portion 63, and the cylindrical portion 62 (the head 61 has the largest diameter and the cylindrical portion 62 has the smallest diameter), and the vertical position is described. The adjusting hole 26 has a larger diameter than the cylindrical portion 62 and a smaller diameter than the threaded portion 63, and the bolt attachment / detachment hole 27 has a larger diameter than the threaded portion 63 and a smaller diameter than the head portion 61. The vertical position adjusting hole 26 and the bolt attachment / detachment hole 27 communicate with each other to the extent that the cylindrical portion 62 in the vertical direction can move horizontally. Then, the user inserts the vertical positioning bolt 60 into the bolt attachment / detachment hole 27 from above, and horizontally moves the vertical positioning bolt 60 to position it in the vertical position adjusting hole 26 as shown in FIG. After that, the user rotates the vertical positioning bolt 60 while lifting the substrate 65 inside the main body 2 to screw the screw portion 63 of the vertical positioning bolt 60 into the screw hole of the substrate 65. As long as this screwing is maintained, the vertical positioning bolt 60 will not fall out of the vertical position adjusting hole 26 and the bolt attachment / detachment hole 27. That is, the above-mentioned vertical position adjusting hole 26 and the bolt attachment / detachment hole 27 have a function of preventing retaining.

Further, in the above-described embodiment, the left taper 4L and the right taper 4R have been described as an example of the taper portion 4, but the present invention is not necessarily limited to these, and any one taper of the left taper 4L or the right taper 4R may be used. good. Further, the taper according to the present embodiment is not limited to an inclined flat surface, but also includes an inclined curved surface.

In addition, although the curved convex portion 55 has been described in the above-described embodiment, the configuration may not have the curved convex portion 55.

Further, the shape of the rail 100 described in the above embodiment is only an example, and if it is guided by the tapered portion 4, the left and right derailment prevention portions 106 may be closer to each other toward the upper side, and may have other shapes. May be.

Further, in the above-described embodiment, the leaf spring 50 has been described as an example of the urging member 5, but any other than the leaf spring 50 may be used as long as the two rails 100 are urged downward. As another example of the urging member 5, a spring member other than the leaf spring 50, an elastic body such as rubber, or a weight capable of moving up and down to push down the two rails 100 by its own weight may be used.

Moreover, the embodiment is exemplary in all respects and is not limiting. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims. Among the configurations described in the above-described embodiment, the configurations other than those described as the first invention in "Means for Solving the Problem" are arbitrary configurations, and can be appropriately deleted or changed.

1 Rail joint 2 Main body 4 Taper part 5 Tension member 6 Vertical positioning mechanism 26 Vertical position adjustment hole 51 Mounting plate 52 Vertical plate 53 Bounce plate 54 Stopper 55 Curved convex part 60 Vertical positioning bolt 61 Head 62 Cylindrical part 63 Screw Part 65 Board 67 Pin 100 Rail 103 Running base plate 105 Hole

Claims (4)

A rail joint that connects adjacent rails in the longitudinal direction.
A main body that accommodates each end of the rail,
A vertical positioning mechanism that can be positioned vertically with respect to the main body,
It is provided with an urging member provided in the vertical positioning mechanism to urge the rail downward.
A rail joint characterized in that the main body has a tapered portion that guides a rail urged downward to the side. The taper part is
A left taper that touches the lower left outer corner of the rail and guides the rail to the right.
The rail joint according to claim 1, wherein the rail has a right taper that is in contact with the lower right outer corner portion of the rail and guides the rail to the left side. The rail joint according to claim 1 or 2, wherein the urging member has a curved convex portion that engages with a hole formed in the top surface of the rail. The vertical positioning mechanism
A board with screw holes formed in the vertical direction,
It has a vertical positioning bolt that can adjust the vertical position of the board.
The vertical positioning bolt
The screw portion screwed into the screw hole of the substrate and
With the largest diameter head,
A cylindrical portion having the smallest diameter located between the threaded portion and the head is provided.
The top plate of the main body
A vertical position adjustment hole with a larger diameter than the cylindrical part and a smaller diameter than the threaded part,
It is provided with a bolt attachment / detachment hole having a diameter larger than that of the screw portion and a diameter smaller than that of the head.
The rail joint according to any one of claims 1 to 3, wherein the vertical position adjusting hole and the bolt attachment / detachment hole communicate with each other to such an extent that the cylindrical portion can be moved.

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