JP6639301B2 - Turnout rail spacing material and mounting / detaching work tools - Google Patents

Description

  The present invention relates to a rail spacing member of a turnout provided at a point on a railroad track, and a mounting / dismounting work tool suitable for use when installing or replacing the spacing member.

A rail track is provided with a branching device for distributing a vehicle to another track. The branching device includes a point portion including a tongue rail whose tip portion is moved by the switch and a basic rail to which the tongue rail is in close contact, a lead portion having a lead rail continuous with the tongue rail, and two tracks. It consists of a crossing section where rails intersect (see FIG. 7 of Patent Document 1).
The vicinity of the boundary between the point portion and the lead portion is a rear end portion of the point. The rear end portion of the point keeps a space between the tongue rail and the basic rail, and integrally connects the tongue rail, the lead rail, and the basic rail. There are provided iron blocks, called spacers, which are fixed to the crossties via rail fasteners and branch tie plates.

  For such a branching device, a fine dismantling inspection is periodically performed from the viewpoint of preventing a derailment accident, and at that time, a spacing member may be replaced. However, since the spacing material has a weight of about 40 kg, the work is not easy.Conventionally, it is necessary to hit the spacing material with a hammer or the like to shift it, and hit the assistant by mistake. There was also a risk of causing. Also, since the spacers are moved along the rails, they may collide with the tie plate projections.In this case, remove the tie plate or use an auxiliary tool such as a crowbar. It was necessary to lift the spacers.

JP 2014-214538 A

Then, in order to improve the workability of attaching and detaching the spacing member, an invention as disclosed in Patent Document 1, for example, has been proposed. The invention of Patent Literature 1 is to form a concave portion at the bottom of the spacing member so as not to interfere with the projection of the tie plate.
However, in the case of the spacing member disclosed in Patent Document 1, although an assistant for removing the tie plate or lifting the spacing member using a bar is not necessary, the heavy spacing member is hit with a hammer or the like in order to move the heavy spacing member. Therefore, there is a problem that considerable effort is required and damage to the surrounding rails cannot be avoided.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a rail spacing member of a turnout that does not require hitting with a hammer or the like or lifting with a bur at the time of attaching and detaching work. Is to do.
Further, another object of the present invention is to provide a tool for attaching and detaching work, which can easily remove and replace a newly created rail spacing member.

To achieve the above object, the present invention provides
In a rail spacing member arranged between parallel rails constituting a rail track turnout to maintain rail spacing,
It is made of a rectangular parallelepiped block formed of a rigid material, and at least two locations in the longitudinal direction of the block are provided with locking portions to which a predetermined tool can be connected from above.

  According to the rail spacing member having the above configuration, the spacing member can be moved or lifted along the rail by hooking a predetermined work tool on the locking portion from above, so that the hammer can be used in attaching and detaching operations. There is no need to hit with a bar or lift with a bar, and the rail spacing member can be easily removed or replaced.

Preferably, the locking portion includes a through-hole having a substantially oval cross section penetrating from the top surface to the bottom surface of the block, and a concave portion is formed at least on a peripheral edge of the through-hole on the bottom surface of the block. To be configured.
According to such a configuration, the tip of the working tool can be inserted into the through hole and turned by a predetermined angle to prevent the tool from coming off, so that work efficiency can be improved and safe work can be secured.

Preferably, the recess is an engagement groove formed in a direction intersecting the major axis direction of the through hole.
According to this configuration, the tip of the working tool can be inserted into the through hole and turned by a predetermined angle, so that the tip of the tool can be engaged with the engagement groove, so that the tool can be reliably prevented from coming off during the work. Work safety can be improved.

More preferably, the locking portion includes a relief groove formed on the upper surface of the block and a locking pin provided so as to bridge substantially the center of the relief groove.
According to this configuration, the work tool can be easily connected to the rail spacing member by using the work tool having the hook at the tip, so that the work efficiency can be improved.

A tool for attaching and detaching a rail spacing member according to another invention of the present application,
An operating rod having a handle portion at an end and provided with action direction follow-up means capable of following the action direction of force in the middle,
A connecting means provided at an end of the operating rod opposite to the handle, and capable of connecting to a locking portion of a rail spacing member.

Here, it is conceivable to use, for example, a universal joint, a ring, a chain, or the like as the action direction following means provided in the middle of the operating rod.
According to the attachment / detachment tool having such a configuration, it is possible to realize an attachment / detachment tool capable of easily removing or replacing a newly created rail spacing member, and to move the spacing member along the rail. The force applied to the operating rods can be efficiently transmitted to the spacing member both when lifting and lifting, and workability can be improved.

Preferably, the connecting means is a shaft provided with a latching piece projecting in a direction perpendicular to the axis at the tip.
According to this configuration, the shaft at the tip of the working tool can be inserted into the through hole and turned by a predetermined angle to prevent the engaging piece at the tip of the shaft from coming off. The workability can be improved by being connected to the material, and the tool can be reliably prevented from coming off during the work, and the work safety can be improved.

Furthermore, preferably, a cylindrical member fitted to the outer periphery of the shaft and movable in the axial direction is provided, and fixing means for fixing the cylindrical member at an arbitrary position in the axial direction of the shaft is provided. I do.
According to such a configuration, the shaft at the tip of the work tool inserted into the through hole becomes difficult to move, and the tool can be more securely prevented from coming off during the work, and the work safety can be further enhanced. .

  ADVANTAGE OF THE INVENTION According to this invention, the rail spacing material of the switchboard which does not need to hit with a hammer etc. or to lift with a bur at the time of attachment / detachment work can be implement | achieved. In addition, there is an effect that it is possible to provide a mounting / removing tool which can easily remove or replace a newly invented rail spacing member.

(A), (B), (C) is a perspective view showing the first, second, and third embodiments of the rail spacing member according to the present invention. (A), (B) is sectional drawing and a top view which show the state which attached the rail spacing material between the rails which comprise a branching device. (A), (B), (C) is a side view, a plan view, and a partially enlarged view of the bottom surface showing details of the rail spacing member of the first embodiment. (A), (B), (C) is a perspective view, an enlarged view of a main part, and an example of an attaching / detaching work tool suitable for removing or replacing a rail spacing member of the first embodiment. It is a side view showing a state. FIGS. 7A and 7B are a perspective view and a side view showing an example of an attaching / detaching work tool suitable for removing or replacing a rail spacing member of the second embodiment. (A), (B), (C) is a perspective view, an enlarged view of a main part, and an example of an attaching / detaching work tool suitable for removing or replacing the rail spacing member of the third embodiment. It is a side view showing a state.

Hereinafter, embodiments of a rail spacing member and a mounting / removing tool according to the present invention will be described in detail with reference to the drawings.
1A and 1B show a rail spacing member according to an embodiment of the present invention, wherein FIG. 1A is a perspective view of a rail spacing member 10A according to the first embodiment, and FIG. 1B is a perspective view illustrating a rail spacing member 10B according to the second embodiment. (C) is a perspective view of a rail spacing member 10C of the third embodiment. In the following description, when the rail spacing members 10A, 10B, and 10C are not distinguished, they are simply referred to as rail spacing members 10.

  FIGS. 2A and 2B show a state in which the rail spacing member 10 of each embodiment is inserted between the basic rail 21, the tongue rail 22, and the lead rail 23 from the front (or rear) and diagonally above. Is what I saw. As can be seen from FIG. 2 (B), the tongue rail 22 is laid so that its end face is in contact with the end face of the lead rail 23 and is continuous with the lead rail 23 to form an apparently single rail. In FIG. 2B, the arrow B indicates the direction in which the rail spacing member 10 is removed. Reference numeral 25 denotes a tie plate, and reference numerals 25a and 25b denote rail position regulating projections provided on the tie plate.

  As shown in FIG. 1, each of the rail spacing members 10A, 10B, and 10C of each embodiment includes a substantially rectangular parallelepiped main body block 11, and a plurality of (four in the figure) penetrating the main body block 11 in the lateral direction. As shown in FIG. 3B, the whole body block 11 is formed such that the width of one end is smaller than the width of the other end, that is, the tip of the wedge is formed. It is formed in a shape like a cut. In the embodiment of the present invention, the rail spacing members 10A, 10B, and 10C are formed of a metal having high rigidity and relatively good workability, such as iron.

As shown in FIG. 2A, three bolts 21, 22 and 23 are connected to washers 24 A and 24 B joined to the abdomen of the basic rail 21 and the abdomen outside the lead rail 23, as shown in FIG. The rail spacing member 10 is provided for inserting a bolt 26 for sandwiching the rail spacing member 10 from both sides and integrally connecting the rail spacing members 10.
As shown in FIGS. 2A and 2B, the side portions in the longitudinal direction of the main body block 11 have shapes corresponding to the abdomen of the basic rail 21 and the abdomen of the tongue rail 22 (lead rail 23), respectively. . Although not particularly limited, concave portions 11b and 11c are formed on the upper surface and the lower surface of the main body block 11, respectively, along the longitudinal direction. In some cases, a recess along the longitudinal direction is also formed on the side surface of the main body block 11. By forming these concave portions, the weight can be reduced and the frictional resistance when the main body block 11 is moved along the rail can be reduced.

  Next, details of the rail spacing member and the attachment / detachment work tool of each embodiment will be described in order. FIGS. 3A, 3B, and 3C are a side view, a plan view, and a partially enlarged bottom view showing the details of the rail spacing member 10A of the first embodiment. As shown in FIG. 3 (B), the rail spacing member 10A of the first embodiment has two through holes 12a, which have an elliptical cross section vertically penetrating the main body block 11, at two locations in the longitudinal direction. 12b is formed. Further, as shown in FIG. 3 (C), engagement grooves 13a and 13b, which form an oval shape and are orthogonal to the through holes 12a and 12b, are formed in the peripheral edge of the through holes 12a and 12b on the bottom surface of the main body block 11. Have been. As can be seen from FIG. 3 (C), the engaging grooves 13a and 13b have a cross section corresponding to the shape of a latching piece 33a at the tip of a later-described attaching / detaching work tool 30A.

FIG. 4 shows an example of the attachment / detachment operation tool 30A corresponding to the rail spacing member 10A of the first embodiment.
As shown in FIG. 4A, the attachment / detachment work tool 30A is a tool that is inserted into the through holes 12a and 12b of the rail spacing member 10A and used to lift or shift the rail spacing member 10A to the side. The two workers each hold one attachment / detachment work tool 30A, and operate with two people.

The attachment / detachment tool 30A shown in FIG. 4 has a T-shaped operating rod 31 having a horizontal handle portion 31a at an upper end, and an upper end connected to a lower end of the operating rod 31 via a universal joint 32, and a lower end connected to a lower end. A connecting shaft 33 having a wing-shaped hooking piece 33a, a cylindrical adjusting collar 34 fitted around the outer periphery of the connecting shaft 33 so as to be movable in the axial direction, and a male screw at the end of the connecting shaft 33; And a knob 35 which is screwed into a female screw portion formed on the outer periphery and fixes the adjusting collar 34 at an arbitrary position in the vertical direction of the connecting shaft 33.
The width of the hook 33a and the diameter of the connecting shaft 33 are set to be slightly smaller than the width of the through holes 12a and 12b. The hooking piece 33a is not limited to a plate-shaped one as shown in the figure, and may have a circular cross section or the like.

As shown in FIG. 4B, the adjusting collar 34 has an inverted L-shaped slit 34a through which the shaft of the knob 35 can be inserted. A female screw into which a male screw at the tip of the knob 35 is screwed is formed. The screw is loosened by operating the knob 35, and the position is adjusted by sliding the adjusting collar 34 upward or downward. Then, by turning the knob 35 and tightening the screw, the adjusting collar 34 can be immovably fixed to the connecting shaft 33.
The outer diameter of the adjusting collar 34 is set to be larger than the shorter diameter of the through-holes 12a and 12b having an oval cross section formed in the rail spacing member 10A of FIG. Even when the tip of the connecting shaft 33 is inserted into the through holes 12a and 12b with the knob 35 loosened, the adjusting collar 34 can be prevented from entering the through holes 12a and 12b.

Next, a method of using the attachment / detachment tool 30A according to the present embodiment will be described.
First, the lower end of the connecting shaft 33 is inserted into the through hole 12a or 12b while the knob 35 is loosened and the handle 31a at the upper end of the attachment / detachment work tool 30A is aligned with the longitudinal direction of the rail spacing member 10A. The hook 33a is projected from below the through hole. Subsequently, the entire tool is turned 90 degrees around the operating rod 31 and then slightly lifted. Then, the engaging piece 33a at the lower end of the connecting shaft 33 is engaged with the engaging grooves 13a and 13b formed on the bottom surface of the rail spacing member 10A.

  In this state, the adjustment collar 34 is slid downward, then the knob 35 is turned and the screw is tightened, so that the adjustment collar 34 is immovably fixed to the connection shaft 33. At this time, a lateral guide hole is provided at the upper end of the inverted L-shaped slit 34a formed in the adjusting collar 34, and the adjusting portion is so arranged that the shaft of the knob 35 enters the guide hole. After the collar 34 is turned, the knob 35 is turned to fix the adjustment collar 34. Then, since the lower end of the adjusting collar 34 contacts the upper surface of the rail spacing member 10A, the wobbling of the connecting shaft 33 can be prevented.

In addition, since the height of the guide hole at the upper end of the inverted L-shaped slit 34a formed in the adjustment collar 34 is set at an appropriate position, even if the adjustment collar 34 is to be fixed, the knob 35 If the shaft portion does not fit into the guide hole, the operator may find that the engaging piece 33a at the lower end of the connecting shaft 33 is not sufficiently engaged with the engaging grooves 13a and 13b on the bottom surface of the rail spacing member 10A. Can be determined.
Further, since the universal joint 32 is provided between the operating rod 31 and the connecting shaft 33, when the operating rod 31 is grasped and a force in the direction of shifting the rail spacing member 10A to the side is applied, FIG. 2), the operating rod 31 is inclined in the direction in which the force acts, as shown by the chain line C, so that there is an advantage that the force can be transmitted efficiently and the rail spacing member can be easily moved. It is also easy to lift and carry.

In the rail spacing member 10B of the second embodiment shown in FIG. 1B, vertical screw holes 14 a and 14 b are formed at two longitudinal positions on the upper surface of the main body block 11. The screw holes 14a, 14b may or may not penetrate the main body block 11.
FIG. 5 shows an example of the attachment / detachment work tool 30B corresponding to the rail spacing member 10B of the second embodiment.

The tool 30B for attaching / detaching work shown in FIG. 5 is a tool used to connect the lower portion of the tool with a bolt using the screw holes 14a and 14b of the rail spacing member 10B to lift or shift the rail spacing member 10B to the side. In this case, two workers each hold one attachment / detachment work tool 30B and operate with two people.
The attachment / detachment operation tool 30B shown in FIG. 5 is connected to a T-shaped operating rod 31 having a horizontal handle portion 31a at an upper end, and a pair of connecting rings 36a and 36b to a lower end of the operating rod 31. And a locking block 37 having a U-shaped cross section. At the center of the upper surface of the locking block 37, an engagement piece 37a with which one ring 36b of the connection ring is engaged is formed, and a screw insertion hole 37b through which a coupling bolt 38 can be inserted is formed. ing. Further, the bottom surface of the locking block 37 is formed in a shape (flat in the figure) that is exactly joined to the upper surface of the rail spacing member 10B.

Next, a method of using the attachment / detachment tool 30B according to the present embodiment will be described.
First, the locking block 37 at the lower end of the attachment / detachment work tool 30B is joined to the upper surface of the rail spacing member 10B such that the screw insertion hole 37b matches the screw hole 14a or 14b formed in the rail spacing member 10B. . Subsequently, the tip of the bolt is screwed into the screw hole 14a (or 14b) of the rail spacing member 10B by inserting and turning the bolt 38 into the screw insertion hole 37b, and tightened using a tool such as a spanner. The locking block 37 is coupled to the upper surface of the rail spacer 10B.

  According to the attaching / detaching operation tool 30B having the above-described configuration, the locking block 37 is joined to the upper surface of the rail spacing member 10B exactly, so that the combined attaching / detaching operation tool 30B can be prevented from wobbling. . Further, since the connection rings 36a and 36b are provided between the operation rod 31 and the locking block 37, when the operation rod 31 is gripped and a force in the direction of shifting the rail spacing member 10B to the side is applied, the drawing is omitted. As shown by the chain line C in FIG. 5B, the operating rod 31 is inclined in the direction in which the force is applied, so that the force can be transmitted efficiently, and there is an advantage that the rail spacing member can be easily moved. It is also easy to lift and carry.

  A rail spacing member 10C according to the third embodiment shown in FIG. 1C has a pair of long members deeper than the thickness of a hook 39 at the tip of the attachment / detachment work tool 30C described later at two longitudinal positions on the upper surface of the main body block 11. Circular relief grooves 15a and 15b are formed, and locking pins 16a and 16b are fixed to substantially longitudinally central edges of the relief grooves 15a and 15b so as to bridge the grooves. I have. Note that the longitudinal direction of the elliptical relief grooves 15a and 15b is not limited to the longitudinal direction of the main body block 11, and may not be coincident with the longitudinal direction of the spacing member such as the width direction of the main body block 11.

FIG. 6 shows an example of the attachment / detachment operation tool 30C corresponding to the rail spacing member 10C of the third embodiment.
The tool 30C for attachment / detachment shown in FIG. 6 is a tool used to hook the lower hook of the tool using the locking pins 16a and 16b of the rail spacing member 10C to lift or shift the rail spacing member 10C to the side. In this case, two workers each hold one of the attachment / detachment work tools 30C, and operate with two people.
6 includes a T-shaped operating rod 31 having a horizontal handle portion 31a at an upper end, a hook 39 attached to a lower end of the operating rod 31, and a retaining prevention lever 40. Is provided.

  As shown in FIG. 6B, a protrusion 39a is formed on the front surface of the base of the hook 39, and a horizontal support shaft 39b is provided on the protrusion 39a. The stopper prevention lever 40 is rotatably attached to 39b. Further, a torsion spring 41 is mounted on the support shaft 39b, and the retaining prevention lever 40 is urged in a direction in which the opening side of the hook 39 can be closed by the restoring force of the torsion spring 41. ing. The retaining prevention lever 40 is provided with a handle portion 40 a for applying a force for releasing the tip of the retaining prevention lever 40 against the restoring force of the torsion spring 41.

Next, a method of using the attachment / detachment operation tool 30C according to the present embodiment will be described.
First, the hook 39 at the lower end of the attachment / detachment work tool 30C is hooked on the locking pin 16a or 16b on the upper surface of the main body block 11, and the lower end of the attachment / detachment work tool 30C is connected to the rail spacing member 10C. At this time, since the retaining prevention lever 40 closing the tip of the hook 39 is urged by the torsion spring 41, pressing the distal end of the retaining prevention lever 40 against the locking pin 16a or 16b causes the torsion spring 41 to be pressed. The retaining pin 16a or 16b easily enters the inside of the hook 39, and the retaining lever 40 is automatically rotated by the restoring force of the torsion spring 41. The hook 39 is returned to the closed position and the tip of the hook 39 is closed, so that the hook 39 is prevented from coming off.

When removing the attachment / detachment tool 30C from the rail spacing member, hold the handle portion 40a at the lower end, rotate the retaining prevention lever 40, and release the tip of the hook 39. When the handle 40a is released after releasing from the locking pin 16a or 16b on the upper surface of the main body block 11, the retaining prevention lever 40 is rotated and returned by the restoring force of the torsion spring 41, and the tip of the hook 39 is closed. The state will be restored.
According to the attachment / detachment operation tool 30C having the above-described configuration, the hook 39 is provided with the retaining prevention lever 40, so that the hook 39 comes off from the locking pins 16a and 16b of the rail spacing member 10 during the operation. Can be prevented.

Further, since the torsion spring 41 for urging the retaining prevention lever 40 in the closing direction is provided, the hook 39 is hooked on the locking pin 16a or 16b on the upper surface of the main body block 11 with one touch, and the attachment / detachment work tool 30C is removed. The lower end can be connected to the rail spacer 10C. Since the handle 40a is provided on the stopper 40, the handle 40a is grasped and the stopper 40 is rotated to open the tip of the hook 39 so that the hook 39 can be easily removed. it can.
Furthermore, since the attachment / detachment work tool 30C is coupled to the rail spacing member 10C by the engagement of the hook 39 and the locking pins 16a, 16b, when a force is applied in a direction to shift the rail spacing member 10C back and forth. As shown by a chain line C in FIG. 6 (C), the operating rod 31 is inclined in the direction in which the force is applied, so that there is an advantage that the force can be transmitted efficiently and the rail spacing member can be easily moved. It is also easy to lift and carry.

As mentioned above, although the embodiment of the present invention was described, the present invention is not limited to the embodiment. For example, in the above description, the first to third embodiments are described independently of each other. In particular, regarding the attachment / detachment work tool, the first to third embodiments are combined or the technical elements in each embodiment are combined. It is also possible to replace.
Further, in the above embodiment, the rail spacing member and the work tool for attaching and detaching the rail spacing member are described. However, the present invention is applied to a heavy object other than the rail spacing member and the attachment / detachment work tool. Can be applied.

10A, 10B, 10C Rail spacing material 11 Body block 11a Bolt insertion hole 12a, 12b Through hole (locking part)
13a, 13b Engagement groove 14a, 14b Screw hole (locking part)
15a, 15b Escape groove (locking part)
16a, 16b Locking pin (locking portion)
Reference Signs List 21 basic rail 22 tongue rail 23 lead rail 30A, 30B, 30C attachment / detachment work tool 31 operating rod 32 universal joint (action direction following means)
33 Connecting shaft 34 Adjustment collar (tubular member)
36a, 36b connecting ring (action direction following means)
37 Locking block 39 Hook 40 Prevention prevention lever

Claims (5)

A rail spacing member arranged between parallel rails constituting a railroad track turnout to maintain rail spacing,
It is formed of a rectangular parallelepiped block formed of a rigid material, and at least two locations in the longitudinal direction of the block are provided with locking portions capable of connecting a predetermined tool from above ,
The locking portion has a through-hole having a substantially oval cross section penetrating from the top surface to the bottom surface of the block, and a recess is formed on at least a periphery of the through-hole on the bottom surface of the block. Rail spacing material to do. The rail spacing member according to claim 1 , wherein the recess is an engagement groove formed in a direction intersecting a major diameter direction of the through hole. An operating rod having a handle portion at an end and provided with action direction follow-up means capable of following the action direction of force in the middle,
Connecting means provided at an end of the operating rod opposite to the handle, and capable of connecting to a locking portion of a rail spacing member;
A rail spacing member attaching / detaching work tool, comprising: 4. The tool according to claim 3 , wherein the connecting unit is a shaft having a hook at a tip thereof that protrudes in a direction perpendicular to the axis. 5. A cylindrical member fitted on the outer periphery of the shaft and movable in the axial direction, and fixing means for fixing the cylindrical member at an arbitrary position in the axial direction of the shaft. 4. The tool for attaching and detaching rail spacing members according to 4 .

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