JP2015098732A - Rail fastening device for turnout - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rail fastening device for a turnout, which enables a rail to be fastened with ease.SOLUTION: In a rail fastening device 100 for a turnout, a leaf spring member 20 is attached between a body part 11 and an overhanging part 13 of a floor board 10 in a state in which one end 20a of the leaf spring member 20 is placed on a lower flange 1a of a stock rail 1. After that, a wedge member 30 is inserted between the other end 20b of the leaf spring member 20 and the body part 11, and fixed to the body part 11. Thus, the lower flange 1a of the stock rail 1 is urged in such a manner as to be pressed against the body part 11 by the one end 20a of the elastically-deformed leaf spring member 20, and the stock rail 1 is fastened to the floor board 10.

Description

  The present invention relates to a rail fastening device for a turnout.

2. Description of the Related Art Conventionally, in a railroad track branching device, a floor board is provided between sleepers and a tongrel, and the tongrel slides on the floor board.
The base plate is provided with a mounting base having a sliding surface of Tongrel and a spring mounting base, and a leaf spring fixed with a wedge on the spring mounting base presses the lower flange of the basic rail to A rail fastening device that is fastened to a floor plate is known (for example, see Patent Document 1).

No. 7-50401

  However, in the case of the above-mentioned Patent Document 1, since the plate spring is fixed to the spring mounting base using a wedge, a complicated work of screwing a wedge retaining stopper to the spring mounting base with a bolt is required. The workability of fastening the rail was bad.

  An object of the present invention is to provide a rail fastening device for a branching device capable of easily fastening a rail.

In order to achieve the above object, the present invention provides a rail fastening device for a turnout,
A main body portion on which the basic rail is placed on the upper surface, a sliding portion having a sliding surface on which the tongrel is placed at a position higher than the upper surface of the main body portion, and the length of the basic rail from the sliding portion A floor board provided with a projecting portion extending along the direction and having a lower surface facing the upper surface of the main body portion;
A leaf spring member disposed in a direction intersecting with the longitudinal direction of the basic rail and attached between the main body portion and the overhanging portion with one end thereof placed on the lower flange of the basic rail;
A wedge member that is inserted between the other end of the leaf spring member and the body portion, and biases the one end of the leaf spring member to press the lower flange against the body portion;
With
At the tip of the wedge member, a locked portion protruding toward the main body portion is provided, and on the upper surface of the main body portion, a locking portion for locking the locked portion is provided, The wedge member is fixed to the main body portion by being inserted until the locked portion reaches the locking portion.

According to such a configuration, after one end of the leaf spring member is mounted on the lower flange of the basic rail, the leaf spring member is attached between the main body portion and the overhanging portion of the floor plate, and then the other end of the leaf spring member. By inserting a wedge member between the main body portion and fixing the wedge member to the main body portion, it is possible to bias the lower flange against the main body portion at one end of the elastically deformed leaf spring member. it can.
That is, by attaching a leaf spring member and a wedge member to a predetermined position of the floor plate, the other end of the leaf spring member is elastically deformed so as to bend upward, and one end of the leaf spring member is restored by a repulsive force that the leaf spring member restores. However, the lower flange of the basic rail can be pressed against the main body and urged, and the basic rail can be fastened to the floor plate.
In particular, since the locked portion of the wedge member is locked by the locking portion of the main body portion and the wedge member is fixed to the main body portion, the operation of elastically fastening the basic rail to the floor plate is easy.
With such a branching device rail fastening device, it is easy to attach a leaf spring member and a wedge member to a predetermined position of the floor plate without using a stopper for preventing the wedge from coming off or using a special tool for fastening work. By performing the work, the basic rail can be easily fastened to the floor board.

Also, preferably
The overhanging portion is in contact with the upper surface of the leaf spring member on the substantially central side in the longitudinal direction.
If the overhanging portion is in contact with the upper surface of the leaf spring member approximately in the longitudinal direction, the leaf spring member with one end resting on the lower flange of the basic rail is warped upward by the wedge member. The repulsive force that is elastically deformed and the leaf spring member restores preferably acts on one end side of the leaf spring member, so the lower rail is firmly pressed against the main body at one end of the leaf spring member, and the basic rail is securely attached to the floor plate. Can be fastened.

Also, preferably
The lower surface of the projecting portion has a convex shape below the center side along the longitudinal direction of the leaf spring member.
If the lower surface of the overhanging portion has a convex shape below the center side along the longitudinal direction of the leaf spring member, the leaf spring member in contact with the undersurface of the overhanging portion is likely to warp, and preferably It can be elastically deformed.

Also, preferably
On the lower surface of the other end of the leaf spring member, a guide groove is formed along the width direction of the leaf spring member.
The wedge member is inserted along the guide groove in a direction perpendicular to the longitudinal direction of the leaf spring member.
According to this structure, a wedge member can be more reliably attached to a predetermined position by inserting a wedge member along the guide groove of a leaf | plate spring member. Further, since the wedge member is fitted into the guide groove, the wedge member and the leaf spring member are positioned with respect to each other, and the arrangement is difficult to shift, so the wedge member reliably pushes up the other end side of the leaf spring member. Can be suitably elastically deformed.

Also, preferably
The overhanging part is provided in a pair in an arrangement sandwiching the sliding part,
The leaf spring member is attached to both sides of the sliding portion.
According to this configuration, since the basic rail can be fastened to the floor plate by the two leaf spring members, the fastening structure becomes stronger.

  ADVANTAGE OF THE INVENTION According to this invention, the rail fastening device for turnouts which can perform fastening of a rail easily can be obtained.

It is a top view which shows an example of the branching device in an orbit. It is a side view which shows the rail fastening device for turnouts of this embodiment. It is a top view which shows the rail fastening device for turnouts of this embodiment. It is a side view which shows the floor board of the rail fastening device for turnouts. It is a top view which shows the floor board of the rail fastening device for turnouts. It is sectional drawing in the VI-VI line of FIG. It is sectional drawing in the VII-VII line of FIG. It is the bottom view (a) which shows the leaf | plate spring member of the rail fastening device for branching devices, and a side view (b). It is the top view (a) which shows the wedge member of the rail fastening device for turnouts, a side view (b), and a front view (c). It is explanatory drawing regarding attachment of a wedge member, and is the state (a) before insertion of a wedge member, and the state (b) in which the wedge member was fastened between a leaf | plate spring member and a floor board.

  Hereinafter, with reference to drawings, the embodiment of the rail fastening device for branching machines concerning the present invention is described in detail.

  FIG. 1 is a top view showing an example of a branching device 50 in a track, and FIG. FIG. 3 is a plan view showing the turnout rail fastening device 100.

As shown in FIG. 1, the branching device 50 is provided with a Tongler 2 that is actuated by a switcher (not shown) so as to be able to approach and leave the basic rail 1 laid on the sleepers 3.
In FIG. 1, reference numeral 1 indicates a “heavy rail” because it is a movable DC, but it is generally referred to as a “basic rail” because it is generally a basic rail in a normal branching device. Similarly, reference numeral 2 is a “movable rail”, but is called “tongrail” for convenience.
In this branching device 50, the branching device rail fastening device 100 fixes the basic rail 1 to the floor plate 10 (described later) and slidably supports the tongrel 2 placed on the floor plate 10 (described later). Yes.
As shown in FIGS. 1 to 3, for example, as shown in FIGS. 1 to 3, the turnout rail fastening device 100 includes a floor plate 10 installed on a sleeper 3, and a leaf spring member 20 and a wedge member 30 for fastening the basic rail 1 to the floor plate 10. And a clip 4 or the like.

As shown in FIGS. 2 and 3, one lower flange 1 a of the basic rail 1 is urged toward the upper surface of the floor plate 10 by the leaf spring member 20, the wedge member 30, and the like of the turnout rail fastening device 100. The basic rail 1 is elastically fastened to the floor plate 10 by the urging force.
As shown in FIGS. 2 and 3, the other lower flange 1 b of the basic rail 1 is urged toward the upper surface of the floor board 10 by the clip 4 attached to the clip fixing portion 14 of the floor board 10. The basic rail 1 is elastically fastened to the floor plate 10 by the urging force. The clip 4 presses the pressing member 6 downward via the insulating member 5 and urges the other lower flange 1 b toward the upper surface of the floor plate 10.

In this way, in the basic rail 1, one lower flange 1 a is elastically fastened to the floor plate 10 by the leaf spring member 20 and the wedge member 30, and the other lower flange 1 b is elastically fastened to the floor plate 10 by the clip 4. It is fixed to. In addition, since the fastening structure of the basic rail 1 by the clip 4 is the same as that of a conventionally well-known thing, it is not explained in full detail here.
Below, the fastening structure of the basic rail 1 by the floor board 10, the leaf | plate spring member 20, and the wedge member 30 in the rail fastening device 100 for turnouts is demonstrated.

  The floor board 10 is a metal member formed by processing a steel material such as SS400, for example, and is fixed to the sleepers 3 with bolts 9 as shown in FIGS. An insert anchor 9a is embedded in a predetermined portion of the sleeper 3 in advance, and the bolt 9 is screwed into the insert anchor 9a through the bolt hole 19 of the floor plate 10 aligned with the insert anchor 9a. Is fixed to the sleepers 3.

  As shown in FIGS. 2 to 7, the floor plate 10 includes a main body 11 on which the basic rail 1 is placed on the upper surface 11 a, and a slide on which the tongrel 2 is placed at a position higher than the upper surface 11 a of the main body 11. A sliding part 12 having a moving surface 12a and a projecting part 13 having a lower surface 13a projecting from the sliding part 12 along the longitudinal direction of the basic rail 1 and facing the upper surface 11a of the main body 11 are provided. .

On the upper surface 11 a of the main body 11, there is a portion formed one step lower than both sides on which the sliding portion 12 and the clip fixing portion 14 are provided, and one step lower between the sliding portion 12 and the clip fixing portion 14. A track pad 7 is disposed on the upper surface 11 a, and the basic rail 1 is placed on the upper surface 11 a of the main body 11 via the track pad 7.
Further, a locking portion 11b for locking a locked portion 30a (described later) of the wedge member 30 is provided on the opposite side of the clip fixing portion 14 across the sliding portion 12 on the upper surface 11a of the main body portion 11. It has been. As shown in FIG. 7, the locking portion 11 b is formed between an inclined surface 11 c that rises toward the center in the width direction of the main body 11 and a groove that has a bottom surface 11 d that is lower than the top of the inclined surface 11 c. Yes. A pair of the locking portions 11b are provided in an arrangement that sandwiches the bottom surface 11d of the groove.

The sliding part 12 is a substantially rectangular parallelepiped block provided on the center side in the width direction of the main body part 11. The upper surface of the sliding part 12 is formed flat, and functions as a sliding surface 12a on which the Tongrel 2 is placed.
Further, the sliding portion 12 is formed with a protruding portion 12b whose upper surface protrudes toward the basic rail 1 side. The protruding portion 12b protrudes so as to be positioned above one lower flange 1a of the basic rail 1, and has a function of supporting the lower flange 1a of the rail so as not to break the posture, for example, the basic rail 1 tilts. doing.

The projecting portion 13 projects from the sliding portion 12 in a direction along the longitudinal direction of the basic rail 1, and the projecting tip side extends toward the upper surface 11 a of the main body portion 11 to form a side wall portion 13 b. Yes. As shown in FIGS. 6 and 7, a penetrating space R surrounded by the overhanging portion 13, the sliding portion 12, and the main body portion 11 is formed, and a leaf spring member 20 is formed in the penetrating space R. Is inserted and attached.
The lower surface 13a of the overhanging portion 13 has a convex shape below the center side of the leaf spring member 20 along the longitudinal direction. In other words, the lower surface 13a of the overhanging portion 13 protrudes downward from the center side in the direction in which the leaf spring member 20 is inserted into the through space R.
This overhanging portion 13 is provided in a pair so as to sandwich the sliding portion 12, and the two overhanging portions 13 project in a direction away from each other.

The leaf spring member 20 is a metal member formed by processing a steel material such as SUP9, for example, and is arranged in a direction intersecting (in this case, orthogonal) with the longitudinal direction of the basic rail 1, and one end 20a thereof is connected to the basic rail. 1 is mounted between the main body 11 and the overhanging portion 13 in a state of being placed on the lower flange 1a. The leaf spring member 20 is attached by being inserted into the through space R on both sides of the sliding portion 20.
As shown in FIGS. 8A and 8B, one end 20a of the leaf spring member 20 is tapered on the lower surface so as to become thinner toward the tip side. Further, a guide groove 20 c is formed on the lower surface of the other end 20 b of the leaf spring member 20 along the width direction of the leaf spring member 20.

The wedge member 30 is a metal member formed by processing a steel material such as S45C, for example, and is inserted between the other end 20b of the leaf spring member 20 and the main body 11 and attached.
As shown in FIGS. 9A, 9B, and 9C, the wedge member 30 is provided with a locked portion 30a that protrudes downward at the tip, and the rear end of the wedge member 30 that protrudes downward. A portion 30c is provided. In a state where the wedge member 30 is attached between the leaf spring member 20 and the main body portion 11, the locked portion 30 a protrudes toward the main body portion 11. Further, on the upper surface of the wedge member 30, a protrusion 30 b is provided along the direction in which the wedge member 30 is inserted between the leaf spring member 20 and the main body 11.
The wedge member 30 is inserted in a direction perpendicular to the longitudinal direction of the leaf spring member 20 along the guide groove 20c of the leaf spring member 20, and is attached to a predetermined position. However, the lower flange 1a of the basic rail 1 is urged to be pressed against the main body portion 11.

  Here, an operation procedure for elastically fastening and fixing the basic rail 1 to the floor plate 10 by the leaf spring member 20 and the wedge member 30 of the branching device rail fastening device 100 will be described.

  First, the basic rail 1 is placed on the upper surface 11a of the main body 11 of the floor board 10 fixed to the sleeper 3 via the track pad 7, and the other lower flange 1b of the basic rail 1 is attached to the floor board 10 by a clip 4 or the like. Fasten elastically.

  Next, the leaf spring member 20 is inserted into the through space R formed by the overhanging portion 13, and the one end 20 a of the leaf spring member 20 is attached on the one lower flange 1 a of the basic rail 1.

Next, as shown in FIG. 10A, the protrusion 30 b of the wedge member 30 is aligned with the guide groove 20 c of the other end 20 b of the leaf spring member 20, and the wedge member 30 is moved along the guide groove 20 to the leaf spring. For example, a hammer is inserted in a direction perpendicular to the longitudinal direction of the member 20.
When the locked portion 30a of the wedge member 30 inserted between the leaf spring member 20 and the main body portion 11 exceeds the inclined surface 11c of the main body portion 11 and the wedge member 30 is attached at a predetermined position, FIG. As shown to b), the latching | locking part 11b of the main-body part 11 latches the to-be-latched part 30a.

Thus, the locked portion 30a is inserted until it reaches the locking portion 11b, and when the wedge member 30 is attached at a predetermined position, the locked portion 30a of the wedge member 30 is engaged by the locking portion 11b of the main body portion 11. The wedge member 30 is attached and fixed so as to be engaged with the main body 11. That is, the locked portion 30 a of the wedge member 30 and the locking portion 11 b of the main body portion 11 are engaged with each other, and function as a retaining member for the wedge member 30. In particular, the leaf spring member 20 urges the wedge member 30 toward the main body portion 11, and the locked portion 30 a and the locking portion 11 b are suitably engaged with each other, so that the wedge member 30 is detached from the main body portion 11. It has become difficult.
As shown in FIG. 10B, the contact portion 30 c of the wedge member 30 is the main body portion 11 in a state where the locked portion 30 a of the wedge member 30 is locked by the locking portion 11 b of the main body portion 11. It is in contact with the edge. The wedge member 30 is attached so as to be engaged with the main body portion 11 with the inclined surface 11c sandwiched between the locked portion 30a and the contact portion 30c, so that the wedge member 30 is not easily displaced from the attached position. It has become.

The wedge member 30 attached at a predetermined position between the other end 20b of the leaf spring member 20 and the main body 11 is elastically deformed so as to bend the other end 20b of the leaf spring member 20 upward.
At this time, since the lower surface 13a of the overhanging portion 13 is in contact with the upper surface of the leaf spring member 20 at the substantially central side in the longitudinal direction, the repulsive force restored by the elastically deformed leaf spring member 20 causes the leaf spring member 20 to The one end 20a urges the lower flange 1a to be pressed against the main body 11.
That is, the wedge member 30 is elastically deformed so that the other end 20 b side of the leaf spring member 20 is bent upward, so that the one end 20 a of the leaf spring member 20 presses the lower flange 1 a against the main body 11. Thus, the basic rail 1 is elastically fastened to the floor board 10.
In addition, since the lower surface 13a of the overhanging portion 13 that is in contact with the upper surface of the leaf spring member 20 has a convex shape in which the central side along the longitudinal direction of the leaf spring member 20 protrudes, The leaf spring member 20 in contact with the lower surface 13a of the portion 13 tends to warp and can be suitably elastically deformed.

  By attaching the leaf spring member 20 and the wedge member 30 to the floor plate 10 and elastically deforming the leaf spring member 20, the lower flange 1 a is urged to be pressed against the main body 11 by one end 20 a of the leaf spring member 20. Thus, the basic rail 1 can be elastically fastened to the floor board 10.

As described above, according to the turnout rail fastening device 100 of the present embodiment, the leaf spring member 20 is inserted into the through space R in the overhanging portion 13 of the floor plate 10, and one end 20 a of the leaf spring member 20 is connected to the basic rail 1. After being mounted on one lower flange 1a, a wedge member 30 is inserted between the other end 20b of the leaf spring member 20 and the main body portion 11, and the wedge member 30 is engaged with the main body portion 11, The lower flange 1 a can be urged to be pressed against the main body 11 at one end 20 a of the leaf spring member 20.
That is, as described above, by attaching the leaf spring member 20 and the wedge member 30 to predetermined positions of the floor plate 10, the one end 20 a of the leaf spring member 20 presses the lower flange 1 a of the basic rail 1 against the main body 11. The basic rail 1 can be fastened to the floor board 10.
As described above, the branching device rail fastening device 100 according to the present embodiment does not use a stopper for preventing the wedge from being removed, and does not use a special tool for fastening work, and a leaf spring at a predetermined position of the floor plate 10. The basic rail 1 can be easily fastened to the floor board 10 by performing a simple operation of attaching the member 20 and the wedge member 30.

Further, in this branching device rail fastening device 100, when the leaf spring member 20 is removed so as to release the fastening of the basic rail 1, the wedge member 30 is removed so that the locked portion 30a of the wedge member 30 is removed from the locking portion 11b. The tip part of the wedge member 30 is pulled up with a bar or the like, and the protruding portion 30d of the wedge member 30 is struck with, for example, a hammer in a direction opposite to the direction in which the wedge member 30 is inserted, so The wedge member 30 may be removed.
Thus, for example, by using a bar and a hammer, the wedge member 30 can be easily removed, and the leaf spring member 20 can be replaced.

In addition, the floor board 10 may be one in which the main body part 11, the sliding part 12, and the overhang part 13 are integrally molded, or each part may be joined by welding. For example, the main body portion 11 and the sliding portion 12 may be integrally molded, and the overhang portion 13 may be welded and joined thereto.
The application of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Basic rail 2 Tongue rail 3 Sleeper 4 Clip 10 Floor board 11 Main body part 11a Upper surface 11b Locking part 12 Sliding part 12a Sliding surface 13 Overhang part 13a Lower surface 20 Leaf spring part 20a One end 20b Other end 20c Guide groove 30 Wedge member 30a Locked portion 30b Projection 30c Abutting portion 100 Rail fastening device for branching device R Through space

Claims (5)

A main body portion on which the basic rail is placed on the upper surface, a sliding portion having a sliding surface on which the tongrel is placed at a position higher than the upper surface of the main body portion, and the length of the basic rail from the sliding portion A floor board provided with a projecting portion extending along the direction and having a lower surface facing the upper surface of the main body portion;
A leaf spring member disposed in a direction intersecting with the longitudinal direction of the basic rail and attached between the main body portion and the overhanging portion with one end thereof placed on the lower flange of the basic rail;
A wedge member that is inserted between the other end of the leaf spring member and the body portion, and biases the one end of the leaf spring member to press the lower flange against the body portion;
With
At the tip of the wedge member, a locked portion protruding toward the main body portion is provided, and on the upper surface of the main body portion, a locking portion for locking the locked portion is provided, A rail fastening device for a branching device, wherein the wedge member is inserted until the locked portion reaches the locking portion, and the wedge member is fixed to the main body portion.   The branch extension rail fastening device according to claim 1, wherein the overhanging portion is in contact with the upper surface of the leaf spring member on the substantially central side in the longitudinal direction.   The rail fastening device for a branching device according to claim 1 or 2, wherein the lower surface of the overhanging portion has a convex shape in which the center side along the longitudinal direction of the leaf spring member protrudes from the bottom. . On the lower surface of the other end of the leaf spring member, a guide groove is formed along the width direction of the leaf spring member.
The said wedge member is inserted in the direction orthogonal to the longitudinal direction of the said leaf | plate spring member along the said guide groove, The rail fastening device for branch devices as described in any one of Claims 1-3 characterized by the above-mentioned. The overhanging part is provided in a pair in an arrangement sandwiching the sliding part,
The said leaf | plate spring member is attached to the both sides of the said sliding part, The rail fastening device for branch switches as described in any one of Claims 1-4 characterized by the above-mentioned.

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