JP2021031977A - Rail transport vehicle - Google Patents

Abstract

To improve the workability of rail replacement by being able to reliably stop a crane at any position on a crane moving rail.SOLUTION: A crane 12 comprises: a crane carriage 12f that extends in the longer direction of a rail carrier body 11 and runs on a crane moving rail 11d that has a plurality of lock pin entry and exit holes on the side surfaces at prescribed intervals; and a stopper mechanism 12g that moves crane position lock pins by operating an operation handle 12g1 to stop the crane carriage 12f. Therefore, the crane 12 travels on the crane moving rail 11d via the crane carriage 12f, and the operation handle 12g1 of the stopper mechanism 12g can be operated to insert the crane position lock pins into the lock pin entry and exit holes on the side of the crane moving rail 11d and stop at any position.SELECTED DRAWING: Figure 4

Description

The present invention relates to a rail carrier that loads and unloads replacement rails and transports the replacement rails.

As a rail carrier, for example, a crane that raises and lowers old and new replacement rails (hereinafter referred to as replacement rails) to load and unload the replacement rails, and a track on which the replacement rails loaded by the cranes are mounted. A rail carrier equipped with a rail carrier body that runs on the rail carrier, and is provided with rails for moving the crane on both the left and right sides of the rail carrier body in the longitudinal direction of the rail carrier body. Has been proposed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2018-100587

However, the loading and unloading work of the replacement rail is generally performed by stopping the crane on the crane moving rail, but in the rail carrier described in Patent Document 1 described above, the crane moving rail is used. Nothing was disclosed about the crane stop.

Therefore, the present invention has been made by paying attention to such a problem, and the crane can be reliably stopped at an arbitrary position on the rail for moving the crane, and the workability of rail replacement can be improved. The purpose is to provide a car.

In order to solve the above problems, the rail carrier according to the present invention includes a crane for loading and unloading replacement rails, and a rail carrier main body on which the replacement rails loaded by the crane are mounted and travels on the track. A crane moving rail for moving the crane in the longitudinal direction of the rail carrier body is provided on at least one of the left and right sides of the rail carrier body. A crane trolley that travels according to the crane moving rail and a stopper mechanism that moves the crane position lock pin to stop the crane trolley by the operation of a worker are provided, while the side surface of the crane moving rail is provided. Is provided with a plurality of lock pin entry / exit holes through which the crane position lock pin enters / exits at predetermined intervals, and the crane uses any of the plurality of lock pin entry / exit holes for the crane position lock pin of the stopper mechanism. It is characterized in that it is inserted into the lock pin entry / exit hole and stopped at an arbitrary position.
Further, in the rail carrier according to the present invention, the stopper mechanism is provided with an operation handle for controlling the entry / exit of the crane position lock pin into the lock pin entry / exit hole by raising and lowering, and an operation handle for lowering the operation handle. When a urging means for urging is provided and the worker does not operate the operation handle, the operation handle is lowered by the urging means, and the crane position lock pin is inserted into the lock pin entry / exit hole. While the crane is stopped, when the operator raises the operation handle, the crane position lock pin may be disengaged from the lock pin entry / exit hole, and the crane may be able to travel according to the crane moving rail. It is a feature.
Further, the rail carrier according to the present invention is also characterized in that the operation handle is configured to be removable.
Further, in the rail carrier according to the present invention, the crane carriage is provided with wheels running on the lane moving rails on both left and right sides and lower rollers sandwiching the lane moving rails from the opposite side of the wheels. The lane moving rails are provided in pairs on the left and right sides via the rail-to-rail holding plate so as to maintain the distance between the left and right wheels of the crane carriage or the lower rollers, and the wheels of the crane carriage are provided respectively. The rail-to-rail holding plate has a traveling portion that travels and is in contact with the lower roller from the lower side, and an upright portion that stands so that the lower roller passes below the traveling portion, and the rail-to-rail holding plate is used for moving the lane. The lock pin entry / exit holes are provided at predetermined intervals in the longitudinal direction of the rail, and the crane position lock pin is provided on the upright portion of the lane moving rail facing the crane position lock pin and the holding plate between the rails. It is also characterized in that it is provided at the predetermined intervals.

In the rail carrier according to the present invention, the crane is provided with a crane carriage that travels on the crane moving rail and a stopper mechanism that moves the crane position lock pin to stop the crane carriage by the operation of a worker. On the side surface of the crane moving rail, a plurality of lock pin entry / exit holes for entering and exiting the crane position lock pin are provided at predetermined intervals, and the crane travels on the crane moving rail with a crane carriage and the crane position lock pin of the stopper mechanism. Is inserted into any lock pin entry / exit hole among a plurality of lock pin entry / exit holes so that the crane can be stopped at any position.
Therefore, the crane can be stopped at an arbitrary position on the rail for moving the crane, so that the workability of rail replacement can be improved.

(A) and (b) are a front view and a plan view showing a state in which two rail carriers of the embodiment according to the present invention are connected, respectively. It is a front view of the rail carrier of the embodiment which concerns on this invention. It is a top view of the rail carrier of the embodiment which concerns on this invention. It is a front view of the rail carrier of the embodiment which concerns on this invention. (a) to (c) are a plan view, a front view, and a sectional view taken along line AA in FIG. 5 (b) of a rail for moving a crane provided in the rail carrier according to the embodiment of the present invention, respectively. It is an enlarged front view of the main part which shows the structure of the trolley for a crane and the stopper mechanism in the crane which comprises the rail carrier of the embodiment which concerns on this invention. The figure including the crane moving rail and the like in the state which the crane constituting the rail carrier of the embodiment of this invention is traveling on the crane moving rail (the state which the stopper mechanism permits the traveling of a crane carriage). 6 is a cross-sectional view of a main part of line BB of 6. The figure including the crane moving rail and the like in the state which the crane constituting the rail carrier of the embodiment of this invention has stopped the crane moving rail (the state which the stopper mechanism prohibits the traveling of a crane carriage). 6 is a cross-sectional view of a main part of line BB of 6.

Hereinafter, the rail carrier of the embodiment according to the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are merely examples of the present invention, and the present invention is not limited to the following embodiments, and can be appropriately modified within the scope of the technical idea of the present invention.

<Structure of rail carrier 1 of the embodiment>
As shown in FIGS. 1A and 1B, the rail carrier 1 of the embodiment is towed by the mobile vehicle 2 or pushed from behind by the mobile vehicle 2 to travel on the track rail R of the railroad track. As shown in FIGS. 2 to 4, the rail carrier main body 11 on which the replacement rail 3 is mounted and travels on the track rail R, and the left and right cranes 12 for loading and unloading the replacement rail 3 are provided. I have.

The replacement rail 3 is a name for distinguishing it from the track rail R on the track, and refers to an old track rail removed from the track or a new track rail newly laid on the track.

<Structure of rail carrier body 11>
The rail carrier main body 11 travels on the track rail R of the rail while loading the replacement rail 3, and as shown in FIGS. 1 to 4, a plurality of rail carriers traveling on the track rail R on the lower side surface side. Two units, an intermediate rail loading platform 11c and 11b, which have wheels 11a and are provided between the outer rail loading platforms 11b and 11b for loading the replacement rail 3 on the upper surface side and the outer rail loading platforms 11b and 11b. Crane moving rails 11d and 11d on which the crane 12 travels, a locomotive connecting portion 11g for connecting to the mobile vehicle 2, a transport vehicle connecting portion 11h for connecting the rail transporting vehicle main bodies 11 to each other, and the like. Is provided.

(Crane moving rails 11d, 11d)
As shown in FIGS. 5A to 5C, the crane moving rails 11d and 11d have traveling portions 11d1 on which the wheels 12f2 of the crane carriage 12f travel and the lower roller 12f3 abuts from the lower side, respectively. , 11d1 and standing portions 11d2, 11d2 that stand up so that the lower roller 2f3 passes below the traveling portions 11d1, 11d1. The rail spacing plate 11f is interposed between the crane moving rails 11d and 11d on a plurality of rail fixing plates 11e fastened and fixed by bolts or the like at predetermined intervals of about 100 cm, and is fixed by welding or bolts or the like.

Of the crane moving rails 11d and 11d, at least the upright portion 11d2 of the crane moving rail 11d outside the center of the rail carrier main body 11 has rails as shown in FIGS. 5 (b) and 5 (c). A plurality of rail lock pin entry / exit holes 11d3 for entering / exiting the crane position lock pin 12g7 of the stopper mechanism 12g, which will be described later, are provided at each position fixed to the fixing plate 11e, that is, at each predetermined interval provided with the rail spacing plate 11f. ..

Further, as shown in FIG. 5C and the like, the crane position lock pin 12g7 is also provided on the rail spacing plate 11f provided between the crane moving rails 11d and 11d according to the position of the rail lock pin entry / exit hole 11d3. A lock pin entry / exit hole 11f1 for a holding plate is formed to enter / exit, and the crane position lock pin 12g7 enters / exits the lock pin entry / exit hole 11d3 for the rail and the lock pin entry / exit hole 11f1 for the holding plate.

<Crane 12 configuration>
As shown in FIG. 4, for example, the crane 12 is provided on the support column 12a and the support column 12a so as to be rotatable in the vertical direction via a beam connecting shaft 12b1, and a chain, a roller, a screw screw, or the like is provided on the lower side surface. The horizontal beam 12b provided with the slide guide 12b2, the slide mechanism portion 12c that slides in the longitudinal direction of the horizontal beam 12b according to the slide guide 12b2, and the tip (lower end) of the elevating chain 12d1 provided below the slide mechanism portion 12c. ), The length of the piston 12e2 provided between the upper end of the support column 12a and the upper side surface of the horizontal beam 12b, and the length of the piston 12e2 that goes in and out of the cylinder 12e1. It has a well-known structure such as a beam horizontal state holding mechanism 12e that adjusts and holds the horizontal state of the horizontal beam 12b. In FIG. 4, 12d3 is a suspension wire connected to both ends of the replacement rail 3, 12d4 is a remote controller for controlling the elevation of the rail lifter 12d, and the hook 12d2 is hooked in the middle of the suspension wire 12d3 to hook the rail lifter 12d. Is operated to move the replacement rail 3 up and down.

Further, in each of the cranes 12 of the embodiment, as shown in FIGS. 4 and 6 to 8, the crane moving rails 11d provided on the left and right sides of the rail carrier main body 11 at the base portion 12a1 of the support column 12a. A crane carriage 12f that travels according to 11d (see FIG. 3) and a stopper mechanism 12g that stops the crane carriage 12f at arbitrary positions on the crane moving rails 11d and 11d by the operation of a worker are provided.

(Crane trolley 12f)
As shown in FIGS. 6 to 8, the crane trolley 12f includes a top plate portion 12f1 fixed to the bottom plate 12a2 of the base portion 12a1 by a plurality of bolts 12a3, and a crane moving rail 11d from the back side of the top plate portion 12f1. Wheels that are provided so as to extend parallel to 11d and rotatably support the wheels 12f2, 12f2 running on the crane moving rails 11d, 11d and the lower rollers 12f3, 12f3 corresponding to the back sides of the crane moving rails 11d, 11d, respectively. The roller support plates 12f4, 12f4 and the wheel support plates 12f5, 12f5, etc. that rotatably support the wheels 12f2, 12f2 on the opposite sides of the wheels / roller support plates 12f4, 12f4 are provided. The front and rear sides of 12f4 and the wheel support plates 12f5 and 12f5 are joined by connecting plates 12f6 and 12f6.

As shown in FIGS. 7 and 8, tie rod through holes 12a21 and 12f11 through which the tie rods 12g4 described later of the stopper mechanism 12g pass are formed in the bottom plate 12a2 of the base portion 12a1 and the top plate portion 12f1 of the crane carriage 12f. ..

Further, as shown in FIGS. 6 to 8, the crane carriage 12f is spaced apart from the back side of the top plate portion 12f1 so as to be orthogonal to the wheels / roller support plates 12f4, 12f4 and the wheel support plates 12f5, 12f5. However, a pair of lever shaft support plates 12f7 and 12f7 are provided which extend downward in the vertical direction and rotatably support the lock lever pin 12g5 of the stopper mechanism 12g described later.

(Stopper mechanism 12g)
The stopper mechanism 12g stops the crane 12 at an arbitrary position on the crane moving rails 11d and 11d, and the operator slides the crane position lock pin 12g7 by grasping and lowering the handle body 12g11 and the like. The handle 12g1 and the connecting portion 12g12 of the operating handle 12g1 are inserted into the tip side and are detachably connected, while the base end side is rotatably supported by the rotating shaft portion 12g2 of the crane trolley 12f and is supported in the intermediate portion. Is connected to the stopper control unit 12g3 to which the tie rod 12g4 extending in the vertical direction is connected, and the upper end is connected to the stopper control unit 12g3, while the lower end is connected to the tie rod 12g4 connected to the lock lever 12g6. The portion was rotatably supported between the pair of lever shaft support plates 12f7 and 12f7 by the lock lever pin 12g5, one end was connected to the lower end of the tie rod 12g4, and the other end was connected to the crane position lock pin 12g7. A lock lever 12g6, a crane position lock pin 12g7 whose rear end is connected to the lock lever 12g6 and slides, and whose tip enters and exits the lock pin entry / exit hole 11d3 formed in the upright portion 11d2 of the crane moving rail 11d. The upper end is hooked on the stopper control unit 12g3, while the lower end is hooked on the crane carriage 12f, and is provided with a tension spring 12g8 or the like which is a urging means for always pulling the stopper control unit 12g3 downward. ..

<Operation of rail carrier 1 of the embodiment>
Next, the operation of the rail carrier 1 of the embodiment configured as described above will be described.

(Movement of rail carrier 1)
As shown in FIGS. 1A and 1B, the rail carrier 1 of the embodiment is towed by the mobile vehicle 2 or pushed from behind by the mobile vehicle 2 to travel on the track rail R of the railroad track. Move to the target loading / unloading point of the replacement rail 3.

When moving the rail carrier 1 itself, the tip of the crane position lock pin 12g7 is set to stand up with the crane moving rail 11d so that the crane 12 does not move with respect to the crane moving rails 11d and 11d. The crane carriage 12f is stopped at an arbitrary position on the crane moving rails 11d and 11d by inserting it into the lock pin entry / exit hole 11d3 on the surface 11d2 and the lock pin entry / exit hole 11f1 for the holding plate of the rail spacing holding plate 11f. ..

In this case, since the operation handle 12g1 and the stopper control unit 12g3 are pulled by the tensile force of the tension spring 12g8 and are in a horizontal state, the tie rod 12g4 to which the upper end is connected is also lowered to the middle portion of the stopper control unit 12g3, and the tie rod 12g4. The L-shaped lock lever 12g6 connected to the lower end pushes the crane position lock pin 12g7 toward the lock pin entry / exit hole 11d3 of the upright surface 11d2 of the crane moving rail 11d, and locks the tip of the crane position lock pin 12g7. It is inserted into the entry / exit hole 11d3 and the lock pin entry / exit hole 11f1 for the holding plate (see FIG. 4C) to stop the crane carriage 12f at an arbitrary position on the crane moving rails 11d and 11d.

In the stopped state of the crane carriage 12f, the stopper mechanism 12g pulls the stopper control unit 12g3 to which the operation handle 12g1 is connected by the tension spring 12g8 downward, so that the worker does not have to grab the operation handle 12g1 and lower it. Also, as shown in FIG. 8, the operating handle 12g1 can be maintained in the lowered state, that is, the crane 12 can be maintained in the stopped state.

Therefore, when moving the rail carrier 1 itself, the worker does not need to operate the stopper mechanism 12g. Therefore, as shown by the wavy line in FIG. 8, the operation handle 12g1 is removed from the stopper control unit 12g3, for example, the bottom plate 12a2. The operation handle 12g1 may be inserted into the operation handle set hole (not shown) formed in advance so as to have an inner diameter substantially the same as the outer diameter of the connecting portion 12g12.

When the rail carrier 1 itself is moved in this way, the operation handle 12g1 is removed from the stopper control unit 12g3 as shown by the wavy line in FIG. 8, and is inserted into, for example, the operation handle set hole (not shown). Then, the worker can walk and work on the rail carrier 1 without being disturbed by the operation handle 12g1 extending in the horizontal direction, so that the work efficiency is improved.

(Movement of crane 12)
When the target replacement rail 3 is reached at the loading / unloading point and the movement of the rail carrier 1 is completed, the worker releases the stopped state of the crane carriage 12f and sets each crane 12 to the rail carrier main body 11. The crane moving rails 11d and 11d provided on the left and right sides of the upper surface are moved in the longitudinal direction of the rail carrier main body 11.

At that time, when the operation handle 12g1 is not connected to the stopper control unit 12g3, the operation handle 12g1 is connected to the stopper control unit 12g3 as shown by the solid line in FIG. Lift to.

Then, the tie rod 12g4 whose upper end is connected to the middle portion of the stopper control unit 12g3 rises, and the L-shaped lock lever 12g6 connected to the lower end of the tie rod 12g4 rotates clockwise to lock the crane position lock pin. 12g7 is retracted from the lock pin entry / exit hole 11d3 provided in the upright portion 11d2 of the crane moving rail 11d, and the tip of the crane position lock pin 12g7 is the lock pin entry / exit hole 11d3 and the lock pin entry / exit hole 11f1 for the holding plate (FIG. 5 (c). ) See.) Move out.

Therefore, since the stopped state of the crane trolley 12f is released, the crane 12 can travel on the crane moving rails 11d and 11d, and the worker grasps the support 12a of the crane 12 and the pushed-up operation handle 12g1 while holding the crane 12 Is pushed to move the crane carriage 12f on the crane moving rails 11d and 11d, and the crane carrier body 11 can be moved in the longitudinal direction.

Here, on the opposite side of the wheels 12f2, 12f2 of the crane trolley 12f, lower rollers 12f3, 12f3 corresponding to the back sides of the crane moving rails 11d, 11d are provided, respectively, and the wheels 12f2, 12f2 and the lower rollers 12f3, 12f3 Since the traveling portions 11d1 and 11d1 of the crane moving rails 11d and 11d are sandwiched from the vertical direction, even a tall crane 12 can smoothly move along the crane moving rails 11d and 11d without falling.

Then, when each of the cranes 12 travels on the crane moving rails 11d and 11d on the upper surface of the rail carrier main body 11 and reaches the loading / unloading place of the replacement rail 3, the worker releases his / her hand from the operation handle 12g1.

Then, the operating handle 12g1 and the stopper control unit 12g3 are lowered by the tensile force of the tension spring 12g8 and the weight of the operating handle 12g1 and the tie rod 12g4, and the tie rod 12g4 is also lowered because it returns to the horizontal state as shown by the solid line in FIG.

When the tie rod 12g4 is lowered, the L-shaped lock lever 12g6 connected to the lower end of the tie rod 12g4 pushes the crane position lock pin 12g7 toward the lock pin entry / exit hole 11d3 formed in the upright portion 11d2 of the crane moving rail 11d. , Crane position The tip of the lock pin 12g7 is inserted into the lock pin entry / exit hole 11d3 and the holding plate lock pin entry / exit hole 11f1 (see FIG. 4C) for fitting, and the crane 12 is fitted with the crane moving rails 11d and 11d. Stop at any position above.

Therefore, the worker operates the slide mechanism portion 12c, the rail elevator 12d, the beam horizontal state holding mechanism 12e, etc. with the crane 12 stably stopped on the crane moving rails 11d and 11d. The replacement rail 3 loaded on the rail carrier main body 11 can be lifted and replaced.

<Main effects of the rail carrier of the embodiment>
As described above, in the rail carrier 1 of the embodiment according to the present invention, the base 12a1 of the crane 12 has a crane trolley 12f traveling on the crane moving rail 11d and a crane position lock pin operated by a worker. A stopper mechanism 12g for sliding the 12g7 is provided, and a plurality of lock pin entry / exit holes 11d3 for entering and exiting the crane position lock pin 12g7 are provided in the upright portion 11d2 of the crane moving rail 11d at predetermined intervals. Reference numeral 12 Drive the crane moving rail 11d on the crane carriage 12f, and insert the crane position lock pin 12g7 of the stopper mechanism 12g into any lock pin entry / exit hole 11d3 among the plurality of lock pin entry / exit holes 11d3. It is configured so that it can be stopped at the position of.

Therefore, according to the rail carrier 1 of the present embodiment, the crane 12 can be easily stopped at an arbitrary position on the crane moving rail 11d, so that the workability of rail replacement can be improved. ..

Further, in the rail carrier 1 of the present embodiment, the rail spacing plate 11f is provided between the lane moving rails 11d and 11d at predetermined intervals where the lock pin entry / exit holes 11f1 are provided in the longitudinal direction of the lane moving rails 11d and 11d. The rail spacing holding plate 11f is also formed with a holding plate lock pin entry / exit hole 11f1.

Therefore, according to the rail carrier 1 of the present embodiment, when the crane 12 is stopped, the tip of the crane position lock pin 12g7 is not only the lock pin entry / exit hole 11d3 of the crane moving rail 11d but also the rail spacing plate 11f. Since it is also inserted into the holding plate lock pin entry / exit hole 11f1, the crane 12 can be stopped more reliably.

Further, in the rail carrier of the embodiment according to the present invention, the stopper mechanism 12g includes an operation handle 12g1 for controlling the entry / exit of the crane position lock pin 12g7 into and out of the lock pin entry / exit hole 11d3 and the like by raising and lowering the stopper mechanism 12g1 and an operation handle 12g1. A tension spring 12g8, which is an urging means for urging the crane, is provided. When the operator does not operate the operation handle 12g1, the operation handle 12g1 is lowered by the tension spring 12g8, and the crane position lock pin 12g7 is locked. While the crane 12 is stopped by inserting it into the pin entry / exit hole 11d3, when the operator raises the operation handle 12g1, the crane position lock pin 12g7 is disengaged from the lock pin entry / exit hole 11d3, and the crane 12 is a rail for moving the crane. It becomes possible to run according to 11d.

Therefore, according to the rail carrier 1 of the present embodiment, when the crane 12 is stopped and the old and new replacement rails 3 are replaced, the operation handle 12g1 is lowered by releasing the operation handle 12g1. Since the crane position lock pin 12g7 is inserted into the lock pin entry / exit hole 11d3 and the crane 12 is stopped, the workability of the replacement work of the old and new replacement rails 3 can be improved.

In particular, in the rail carrier of the embodiment according to the present invention, the operation handle 12g1 is configured to be detachable from the stopper control unit 12g3, and is operated when the crane 12 is driven on the crane moving rail 11d. While the handle 12g1 is attached to the stopper control unit 12g3 for use, the operation handle 12g1 can be removed from the stopper control unit 12g3 when the crane 12 is stopped.

Therefore, according to the rail carrier 1 of the present embodiment, by attaching the operation handle 12g1, the stopper control unit 12g3 can be raised with a small force to run the crane 12, while the crane 12 is stopped to drive the old and new cranes 12. When the replacement rail 3 is replaced, the operation handle 12g1 that extends in the substantially horizontal direction and interferes with the work can be removed, so that workability can be improved in this respect as well.

In the description of the above embodiment, the crane moving rails 11d, 11d and the cranes 12, 12 are provided on the left and right sides of the rail carrier main body 11, respectively, but the present invention is not limited to this, and the rail carrier main body is not limited to this. Of course, the crane moving rail 11d and the crane 12 may be provided only on one side of the eleven.

Further, in the description of the above embodiment, when the operator does not operate the operation handle 12g1, the operation handle 12g1 is lowered by the tension spring 12g8, the crane position lock pin 12g7 is inserted into the lock pin entry / exit hole 11d3, and the crane 12 is inserted. It has been described that when the operation handle 12g1 is raised while stopping, the crane position lock pin 12g7 is disengaged from the lock pin entry / exit hole 11d3, and the crane 12 can travel according to the crane moving rail 11d. Then, for example, when the worker does not operate the operation handle 12g1, the operation handle 12g1 is raised and the crane position lock pin 12g7 is inserted into the lock pin entry / exit hole 11d3, while the crane 12 is stopped. Of course, when the operating handle 12g1 is lowered, the crane position lock pin 12g7 may be disengaged from the lock pin entry / exit hole 11d3, and the crane 12 may be configured to be able to travel according to the crane moving rail 11d.

Further, in the description of the above embodiment, the operation handle 12g1 is configured to be detachable from the stopper control unit 12g3, but the present invention is not limited to this, and the operation handle 12g1 is fixed to the stopper control unit 12g3. Of course, it may be configured to be non-detachable.

1 Rail carrier 11 Rail carrier body 11a Wheels 11b Outer rail loading platform 11c Intermediate rail loading platform 11d Crane moving rail 11d1 Traveling section 11d2 Standing section 11d3 Rail lock pin entry / exit hole 11e Rail fixing plate 11f Rail spacing holding plate 11f1 Lock pin entry / exit hole for plate 11g Connecting part for locomotive vehicle 11h Connecting part for transport vehicle 12 Crane 12a Strut 12a1 Base part 12a2 Bottom plate 12a21 Tie rod through hole 12a2 Bottom plate 12b Horizontal beam 12b1 Connecting shaft for beam 12b2 Slide guide 12c 12d1 Lifting chain 12d2 Hook 12d3 Suspended wire 12d4 Remote control 12e Beam horizontal state holding mechanism 12e1 Crane 12e2 Piston 12f Crane trolley 12f1 Top plate 12f11 Tie rod through hole 12f2 Wheel 12f3 Lower roller 12f4 Wheel Plate 12f7 Lever shaft support plate 12g Stopper mechanism 12g1 Operation handle 12g11 Handle body 12g12 Connecting part 12g2 Rotating shaft part 12g3 Stopper control part 12g4 Tie rod 12g5 Lock lever pin 12g6 Lock lever 12g7 Crane position lock pin 12g8 Tension spring
2 Mobile vehicle 3 Replacement rail R Track rail

Claims (4)

It is a rail carrier equipped with a crane for loading and unloading replacement rails and a rail carrier main body on which the replacement rails loaded by the crane are mounted and travels on the track.
At least one of the left and right sides of the rail carrier main body is provided with a crane moving rail for moving the crane in the longitudinal direction of the rail carrier main body.
The crane is provided with a crane carriage that travels along the crane moving rail and a stopper mechanism that moves the crane position lock pin by an operator's operation to stop the crane carriage.
On the side surface of the crane moving rail, a plurality of lock pin entry / exit holes for entering / exiting the crane position lock pin are provided at predetermined intervals.
The crane is a rail carrier characterized in that a crane position lock pin of the stopper mechanism is inserted into any of the lock pin entry / exit holes among a plurality of lock pin entry / exit holes and stopped at an arbitrary position. In the rail carrier according to claim 1,
The stopper mechanism has
An operation handle for controlling the entry / exit of the crane position lock pin into the lock pin entry / exit hole by raising and lowering, and an urging means for urging the operation handle to be lowered are provided.
When the operator does not operate the operation handle, the operation handle is lowered by the urging means, the crane position lock pin is inserted into the lock pin entry / exit hole, and the crane is stopped.
A rail carrier characterized in that when an operator raises the operation handle, the crane position lock pin is disengaged from the lock pin entry / exit hole, and the crane can travel according to the crane moving rail. In the rail carrier according to claim 2,
The operation handle is a rail carrier characterized in that it is detachable. In the rail carrier according to any one of claims 1 to 3.
The crane carriage is provided with wheels running on the lane moving rail and lower rollers for sandwiching the lane moving rail from the opposite side of the wheels on the left and right sides, respectively.
The lane moving rails are provided in pairs on the left and right sides via a holding plate between the rails so as to maintain the distance between the left and right wheels of the crane carriage or the lower rollers, and the wheels of the crane carriage travel respectively. In addition, it has a traveling portion with which the lower roller abuts from the lower side and an upright portion standing so that the lower roller passes below the traveling portion.
The rail-to-rail holding plate is provided at predetermined intervals for providing the lock pin entry / exit holes in the longitudinal direction of the lane moving rail.
The crane position lock pin is a rail carrier characterized in that the crane position lock pin is provided at the predetermined interval on the upright portion of the lane moving rail facing the crane position lock pin and the holding plate between the rails.

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