JP6076784B2 - Rail block - Google Patents

Description

  The present invention relates to a rail block that is used by being fixed to sleepers when, for example, increasing the interval between rails (gauge).

  In a long rail called a long rail, it is required not to cut the rail in order to replace a crossing such as a connecting track. Therefore, conventionally, in the case of a double track, the chain block base end is hooked on another rail running in parallel, while the chain block tip is hooked on a rail to be extended between rails, or is described in Patent Document 1. The rails are widened using large heavy machinery such as a track construction machine for track replacement.

JP-T-08-503280

  However, when the distance between rails, that is, between the rails, is widened, a large restoring force is exerted to return to the rails. Therefore, when the track maintenance work is performed between the rails or near the rails, the rails to return to the original state Must be easily and reliably blocked. Therefore, there is a method of blocking the rail by hooking the end of the chain block to the rail that should be extended while the other end of the chain is hooked to the base end of the chain block, but it is difficult to extend the rail interval. At the same time, it adversely affects other rails.

  Therefore, the present invention has been made paying attention to such a problem, and when the interval between the rails is widened, the rail that can be easily and reliably blocked by the restoring force is restored. The purpose is to provide blocks.

In order to solve the above-mentioned problems, the rail block of the present invention is a rail block that is fixed to a sleeper and is used. The pedestal is provided with a mounting portion for fixing to a sleeper, and is rotated on the pedestal. A block portion that can be attached and blocks the rail when standing, and a standing state setting portion that sets or releases the block portion on the pedestal portion.
Here, the standing state setting part is provided with one end part rotatably provided in the middle of the block part, the other end part extending to the upper surface of the pedestal part, the pedestal part, It is good to have a lock part which fixes or cancels the other end part.
In addition, the lock portion is rotatably attached to the lock pin and the pedestal portion, and abuts against the other end portion of the rod portion to apply pressure from the rail applied to the other end portion of the rod portion. A rotation lock bar received via the rod portion, and an upper opening provided on the pedestal portion, the other end of the rod portion being set, and a lock pin insertion hole into which the lock pin is inserted And a lock pin insertion hole into which the lock pin is inserted is provided at the other end of the rod portion, and the other end of the rod portion is connected to the U shape. The lock pin may be inserted into the lock pin insertion hole of the U-shaped connection part and the lock pin insertion hole of the other end part of the rod part.
The inner diameter of the lock pin insertion hole of the U-shaped connecting portion and the inner diameter of the lock pin insertion hole of the other end of the rod portion may be larger than the outer diameter of the lock pin.
In addition, the rod portion is provided with a cylindrical main body portion between one end portion and the other end portion, and a screw rod having a reverse winding thread formed on the one end portion and the other end portion, respectively. The main body portion is screwed to and connected to the screw rod portion of the one end portion and the screw rod portion of the other end portion, and the main body portion is connected to the one end portion and the other end portion. The full length of the rod portion may be expanded and contracted by rotating the main body portion.

  According to the rail block according to the present invention, a pedestal portion provided with an attachment portion for fixing to sleepers, a block portion that is rotatably attached to the pedestal portion and blocks the rail when standing. And a standing state setting part for setting or releasing the block part in the standing state on the pedestal part, so that the rail which is going to return to the original state by its restoring force when the interval between the rails is widened easily and reliably Can be blocked.

It is a front view of a rail block concerning the present invention. It is a top view of a rail block concerning the present invention. It is a right view of the rail block which concerns on this invention. It is a rear view of the rail block which concerns on this invention. It is an enlarged view which shows the relationship between the outer diameter of the lock pin in the rail block which concerns on this invention, the internal diameter of the lock pin insertion hole of a U-shaped connection part, and the internal diameter of the lock pin insertion hole of the other end part of a rod part. (A), (b) It is a top view which shows an example at the time of attaching the rail block of this embodiment to the gauge expansion part of the curve part of a rail, respectively, and AA sectional simplified sectional drawing. (A), (b) It is a top view which shows an example at the time of attaching the rail block of this embodiment to the gauge expansion part of the linear part of a rail, respectively, BB simple sectional drawing. It is a fragmentary sectional view showing the case where the rail block of this embodiment is fixed to a sleeper with a bolt. It is a fragmentary sectional view showing the case where the rail block of this embodiment is fixed to sleepers using a pan roll fixing tool. In the rail block of this embodiment, it is a right view which shows the state which struck and rotated the rotation lock bar of the lock part from the upper direction with the hammer etc. FIG. In the rail block of this embodiment, it is a front view which shows the middle at the time of making a rail block fall down by hitting the rotation lock bar of a lock | rock part from upper direction with a hammer etc. and rotating.

  Hereinafter, a rail block 1 according to an embodiment of the present invention will be specifically described with reference to the drawings.

  As shown in FIGS. 1 to 4, the rail block 1 according to this embodiment is a pedestal portion 11 and a rail that is rotatably attached to the pedestal portion 11, and is intended to return to its original state when standing. It has the block part 12 which blocks R, and the standing state setting part 13 which sets the block part 12 on the base part 11 to a standing state, or cancels | releases.

  The pedestal portion 11 is composed of a U-shaped steel plate member whose left and right sides protrude downward, and is fixed to the sleeper M. The U-shaped recess 11a for fixing to the sleeper M with a bolt 2 described later; The fixing hole 11b for fixing by the pin 4 (see FIG. 9) or the like inserted into the mounting roll 31 (see FIG. 9) of the pan roll itself or the pan roll fixing tool 3 described later, and the rotation of the lock portion 13b A rotation stopper 11c that contacts the lower surface of the lock bar 13b33 to prevent the rotation of the rotation lock bar 13b33, and a rotation pin that will be described later on the base ends of the pair of left and right legs 12b, 12b of the block portion 12 It has the rotation support part 11d supported so that rotation is possible via 12a and 12a. In addition, the fixing method to sleeper M using the U-shaped recessed part 11a or the fixing hole 11b of the base part 11 is mentioned later.

  As shown in FIG. 3 and the like, the block portion 12 includes a pair of left and right legs 12b and 12b that are rotatably attached to the pedestal portion 11 via left and right turning pins 12a and 12a. It has a connecting plate portion 12c for connecting the upper ends of the leg portions 12b, 12b, and a rod-like portion 12d provided on the upper surface of the connecting plate portion 12c by welding or the like. Further, an upper connecting portion 12e is provided at the connecting portion between the connecting plate portion 12c and the rod-like portion 12d to connect the one end portion 13a1 of the standing state setting portion 13 via the rotation pin 12f.

  The standing state setting unit 13 includes a rod portion 13a and a lock portion 13b.

  The rod portion 13a is provided with a cylindrical main body portion 13a3 between one end portion 13a1 and the other end portion 13a2, and the one end portion 13a1 and the other end portion 13a2 are respectively formed with reversely wound threads. Screw rod portions 13a11 and 13a21 are provided so as to protrude.

  The main body portion 13a3 is screwed and connected to the screw rod portion 13a11 of the one end portion 13a1 and the screw rod portion 13a21 of the other end portion 13a2, and rotates the main body portion 13a3 with respect to the one end portion 13a1 and the other end portion 13a2. Thus, the entire length of the rod portion 13a expands and contracts, and the length of the rod portion 13a can be adjusted. Accordingly, even if the upper surface of the sleeper M is inclined or the rail R itself is inclined and attached to the sleeper M, the angle of the block portion 12 with respect to the rail R can be adjusted by adjusting the length of the rod portion 13a. Can be easily set to an optimum angle such as vertical.

  The lock portion 13b is provided on the upper surface of the pedestal portion 11, and fixes or releases the other end portion 13a2 of the rod portion 13a. The lock portion 13b is fixed on the pedestal portion 11 by welding or the like and is inserted into the lock pin 13b2. An upper opening U-shaped connecting portion 13b1 provided with a pin insertion hole 13b11 (see FIG. 5), a lock pin 13b2 inserted into the lock pin insertion hole 13b11 of the U-shaped connecting portion 13b1, and a lock bar portion 13b3.

  Here, in this embodiment, as shown in FIG. 5, the inner diameter r1 of the lock pin insertion hole 13b11 of the U-shaped connecting portion 13b1 and the inner diameter r2 of the lock pin insertion hole 13a22 of the other end portion 13a2 of the rod portion 13a are approximately It is equally assumed that it is larger than the outer diameter R of the lock pin 13b2. That is, the lock pin 13b2 can be inserted loosely into the lock pin insertion hole 13b11 of the U-shaped connecting part 13b1 and the lock pin insertion hole 13a22 of the other end part 13a2 of the rod part 13a.

  The pressure from the rail R applied to the other end portion 13a2 of the rod portion 13a is received by the rotation lock bar 13b33 via the rod portion 13a, and the lock pin 13b2 is connected to the lock pin 13b2. This is because the pressure from the rail R is not applied to the lock pin insertion hole 13b11 of the character-shaped connecting portion 13b1 and the lock pin insertion hole 13a22 of the other end portion 13a2 of the rod portion 13a.

  Therefore, when the block part 12 is changed from the standing state to the lying state as described later, the lock pin 13b2 is inserted into the lock pin insertion hole 13b11 of the U-shaped connecting part 13b1 or the lock pin of the other end part 13a2 of the rod part 13a. It can be easily removed from the hole 13a22.

  Note that the tip of the wire 13b22 is connected to the rear end portion of the lock pin 13b2 via the connection ring 13b21 so that the lock pin 13b2 is not lost, and the base end of the wire 13b22 is fixed on the pedestal portion 11 with the fixing screw 13b23. .

  The lock bar portion 13b3 has a shaft portion 13b32 fixed to a shaft support portion 13b31 fixed on the pedestal portion 11 by welding or the like, and the shaft portion 13b32 has a rail applied to the other end portion 13a2 of the rod portion 13a. A rotation lock bar 13b33 that receives the pressure from R through the rod portion 13a is rotatably connected.

  Next, a mounting location of the rail block 1 configured as described above will be described with reference to FIGS. 6 and 7.

  FIGS. 6A and 6B are a plan view and an AA line simplified cross-sectional view showing an example when the rail block 1 of the present embodiment is attached to the gauge extension portion of the curved portion of the rail R, respectively. .

  As shown in FIGS. 6 (a) and 6 (b), a rail stretcher S is installed between the rails R of the curved portion to increase the distance between the rails R (gauge) in order to replace the rail crossing H of the curved portion of the rail R. Then, the curved portion of the rail R is expanded. At that time, in FIGS. 6A and 6B, the rail block 1 of this embodiment is moved to two rails at a predetermined interval in order to move the outer rail R by utilizing the reaction force from the inner rail R. Installed on sleeper M on the inner circumference side of each R. In FIGS. 6A and 6B, the rail block 1, the rail stretcher S, and the like are illustrated in a simplified manner. As a result, when the gauge between the two rails R in the curved portion is expanded, the movement of each rail R when the two rails R in the curved portion try to return to the original state is blocked, and the rails are safely It is possible to carry out the R-gauge expansion work and the railroad crossing H replacement work.

  FIGS. 7A and 7B are a plan view and a simplified cross-sectional view taken along the line B-B, respectively, showing an example in which the rail block 1 of the present embodiment is attached to a linear extension portion of the rail R. .

  As shown in FIGS. 7 (a) and 7 (b), in order to replace the rail crossing H of the straight portion of the rail R, a rail stretcher S is installed between the rails R of the straight portion to widen the interval (gage) between the rails R. Thus, the straight portion of the rail R is expanded. At that time, in FIGS. 7A and 7B, the rail block 1 of the present embodiment is moved between the two rails R at a predetermined interval in order to extend the rail by moving the rails R on both the left and right sides. Install on sleeper M. In FIGS. 7A and 7B, the rail block 1 and the rail stretcher S are also shown in a simplified manner. As a result, the distance between the two rails R in the straight portion is expanded, and the movement of each rail R when the two rails R in the straight portion are about to return to the original state is blocked. It is possible to safely carry out the work of extending the rail R and replacing the rail crossing H.

  Next, a method for attaching the rail block 1 of the present embodiment configured as described above to the sleeper M will be described with reference to FIGS. 8 and 9.

  FIG. 8 shows a case where the rail block 1 of the present embodiment is fixed to the sleeper M by the bolt 2. In this case, as shown in FIG. 2, the bolt 21 is inserted into the U-shaped recess 11a on the pedestal portion 11, and the rail block 1 is fixed to the sleeper M as shown in FIG. In FIG. 8, a rail R indicated by a two-dot broken line indicates a state in which the rail R is lifted upward when the rail R is removed from the sleeper M and the gauge is expanded.

  FIG. 9 shows a case where the rail block 1 according to the present embodiment is fixed to the sleeper M by using the bread roll fixture 3. In this case, since the bread roll fixture 3 is fixed to the sleeper M, the pan roll itself (not shown) fixed to the bread roll fixture 3, the mounting hole 31 of the pan roll fixture 3, and the base 11 The rail block 1 is fixed to the sleeper M as shown in FIG. 9 by aligning with the fixing hole 11b and inserting the pin 4 or the like.

  Next, the movement when operating the rail block 1 of the present embodiment configured as described above from the standing state to the lying down state will be described with reference to the drawings.

  First, it is assumed that the rail block 1 of the present embodiment is in an upright state as shown in FIG. 1 and blocks a rail R that is not illustrated by the upper left side surface of FIG. At that time, the lock pin 13b2 is inserted into the lock pin insertion hole 13b11 (see FIG. 5) of the U-shaped connecting portion 13b1 and the lock pin insertion hole 13a22 (see FIG. 5) of the other end portion 13a2 of the rod portion 13a. Has been. Further, as shown in FIG. 1, the other end 13a2 of the rod portion 13a is in contact with the rotation lock bar 13b33 of the lock portion 13b in the standing state setting portion 13, and the rail R applied to the other end portion 13a2 of the rod portion 13a. The rotation lock bar 13b33 receives the pressure from the through the rod portion 13a.

  And when making the rail block 1 of this embodiment of standing state as shown in FIG. 1 into a lying state, first, the lock pin insertion hole 13b11 of the U-shaped connection part 13b1 and the other end part of the rod part 13a The lock pin 13b2 is pulled out from the lock pin insertion hole 13a22 of 13a2.

  Next, as shown in FIG. 10, the right end of the rotation lock bar 13b33 of the lock portion 13b of the standing state setting portion 13 provided on the pedestal portion 11 of the rail block 1 is struck from above with a hammer or the like (not shown). The rotation lock bar 13b33 is rotated clockwise in FIG.

  Then, the rotation lock bar 13b33 is in contact with the other end portion 13a2 of the rod portion 13a, and the rotation lock bar 13b33 is structured to receive the pressure from the rail R through the rod portion 13a. 10, when the rotation lock bar 13b33 rotates clockwise in FIG. 10 and the rotation lock bar 13b33 does not contact the other end 13a2 of the rod portion 13a, the rod portion as shown in FIG. The other end 13a2 of 13a moves to the right in the figure.

  Since the block portion 12 of the rail block 1 is rotatably attached to the rotation support portion 11d on the pedestal portion 11 via the left and right rotation pins 12a and 12a, the other end portion of the rod portion 13a. When 13a2 moves in the right direction in the figure, the upper connecting part 12e is pulled by the one end part 13a1 of the rod part 13a, and rotates in the right direction in the figure as shown in FIG. Thereby, rail block 1 itself will be in a lying state.

  Therefore, according to the rail block 1 of this embodiment, the base part 11 provided with the U-shaped recessed part 11a and the fixing hole 11b which are attachment parts for fixing to the sleeper M, and the base part 11 can be rotated. And a block portion 12 that blocks the rail R when in the standing state, and a standing state setting portion 13 that sets the block portion 12 in the standing state on the pedestal portion 11 and releases the block R. The rail R can be easily blocked when the rail is widened or when the rail R at the curved portion is removed.

  In particular, in the rail block 1 of the present embodiment, the standing state setting unit 13 includes a rod portion in which one end portion 13a1 is rotatably provided in the middle of the block portion 12 and the other end portion 13a2 extends to the upper surface of the pedestal portion 11. Since it has 13a and the lock | rock part 13b which is provided in the base part 11 and fixes and cancel | releases the other end part 13a2 of the rod part 13a, the rail R can be blocked with a simple structure.

  Moreover, in the lock part 13b of the rail block 1 of this embodiment, while the pressure from the rail R concerning the other end part 13a2 of the rod part 13a is received by the rotation lock bar 13b33, the U-shaped connecting part 13b1. Since the lock pin 13b2 is inserted into the lock pin insertion hole 13b11 and the lock pin insertion hole 13a22 of the other end portion 13a2 of the rod portion 13a so that the other end portion 13a2 of the rod portion 13a does not come out of the lock portion 13b. When the block part 12 is changed from the standing state to the lying state, the lock pin 13b2 is easily pulled out from the lock pin insertion hole 13b11 of the U-shaped connection part 13b1 and the lock pin insertion hole 13a22 of the other end part 13a2 of the rod part 13a. In addition, the load applied to the lock pin 13b2 can be reduced.

  In particular, in the rail block 1 of the present embodiment, the inner diameter r1 of the lock pin insertion hole 13b11 of the U-shaped connecting portion 13b1 and the inner diameter r2 of the lock pin insertion hole 13a22 of the other end portion 13a2 of the rod portion 13a are Since this is larger than the outer diameter R, the lock pin 13b2 can be inserted into the lock pin insertion hole 13b11 of the U-shaped connecting portion 13b1 or the other end of the rod portion 13a when the block portion 12 is changed from the standing state to the lying state. It can be easily removed from the lock pin insertion hole 13a22 of the portion 13a2.

  Moreover, in the rail block 1 of this embodiment, the rod part 13a consists of the one end part 13a1, the other end part 13a2, and the cylindrical main-body part 13a3 between them, and the one end part 13a1 and the other end part 13a2 are respectively, Screw rod portions 13a11 and 13a21 formed with reversely wound threads are provided so as to protrude, and the main body portion 13a3 is screwed and connected to the screw rod portion 13a11 of the one end portion 13a1 and the screw rod portion 13a21 of the other end portion 13a2. In addition, since the main body portion 13a3 is rotated with respect to the one end portion 13a1 and the other end portion 13a2 so that the entire length of the rod portion 13a can be expanded and adjusted, the block against the rail R can be obtained even if the upper surface of the sleeper M is inclined. The angle of the part 12 can be easily set to an optimum angle.

DESCRIPTION OF SYMBOLS 1 Rail block 11 Base part 11a U-shaped recessed part 11b Fixing hole 11c Rotation stopper 11d Rotation support part 12 Block part 12a Rotation pin 12b Leg part 12c Connection board part 12d Bar-shaped part 12e Upper connection part 12f Rotation pin 13 Standing State setting portion 13a Rod portion 13a1 One end portion 13a11 Screw rod portion 13a2 Other end portion 13a21 Screw rod portion 13a3 Main body portion 13b Lock portion 13b1 U-shaped connecting portion 13b11 Lock pin insertion hole 13b2 Lock pin 13b3 Lock bar portion 13b31 Shaft support portion 13b32 Shaft 13b33 Rotation lock bar 2 Fixing bolt 3 Pandroll fixture M Sleeper R Rail

Claims (5)

A rail block that is fixed to sleepers and used.
A pedestal portion provided with a mounting portion for fixing to a sleeper;
A block part rotatably mounted on the pedestal part and blocking the rail when standing;
An upright state setting unit for setting or releasing the block unit in an upright state on the pedestal portion;
A rail block comprising: The rail block according to claim 1,
The standing state setting unit
One end is rotatably provided in the middle of the block, and the other end extends to the upper surface of the pedestal.
A lock portion provided on the pedestal portion for fixing or releasing the other end of the rod portion;
A rail block comprising: The rail block according to claim 2,
The lock part is
With a lock pin,
A rotation lock bar that is rotatably mounted on the pedestal portion and that abuts against the other end portion of the rod portion and receives pressure from the rail applied to the other end portion of the rod portion via the rod portion. When,
An upper opening-shaped U-shaped connecting portion provided on the pedestal portion, the other end of the rod portion being set, and a lock pin insertion hole into which the lock pin is inserted;
The other end of the rod part is provided with a lock pin insertion hole into which the lock pin is inserted,
The other end of the rod portion can be set in the U-shaped connecting portion, and the lock pin can be inserted into the lock pin insertion hole of the U-shaped connecting portion and the lock pin insertion hole of the other end of the rod portion. A rail block characterized by comprising The rail block according to claim 3,
The rail block, wherein an inner diameter of the lock pin insertion hole of the U-shaped connecting portion and an inner diameter of the lock pin insertion hole of the other end portion of the rod portion are larger than an outer diameter of the lock pin. In the rail block according to any one of claims 2 to 4,
The rod part is
A cylindrical main body is provided between the one end and the other end.
The one end portion and the other end portion are each provided with a protruding screw rod portion formed with a reversely wound thread, and the main body portion includes the one end portion screw rod portion and the other end portion screw rod. A rail block, wherein the rod part is extended and contracted by rotating the main body part relative to the one end part and the other end part.

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