JPH072643Y2 - Rail and sleeper tightening device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail and sleeper tightening device suitable for securely, smoothly and quickly attaching a tightening tool for connecting a rail and a sleeper of a railway.

[0002]

2. Description of the Related Art In recent years, a clip member 2 shown in FIGS. 9 to 11 has been adopted as a tightening tool for tightening a rail and a sleeper of a railway. The clip member 2 is formed by bending an elastic rod made of steel, and has a center leg 21 having an appropriate axial length to be fitted into a fitting hole of a base plate of a rail, which will be described later, and a pressure contact engagement with the base portion of the rail. Tou 22
And an arch 23 connecting the center leg 21 and the toe 22
It is made up of an integral structure. Center leg 21
And toe 22 are arranged in opposite directions to each other, and arch 2
3 is formed by bending in an arc shape. The clip member 2 has high safety and reliability, and since it has no screw portion, it has little corrosion and wear and has a long life. Further, it has many advantages such as being elastic, capable of tightly pressing the vibrating rail, and obtaining a strong fastening force.

An example of a structure for attaching the clip member 2 between the rail and the sleeper is shown in FIG. A base plate 17 is fixed on the sleeper 16 by a screw member 20 or the like. The rail 15 is placed on the base plate 17. Fitting holes 19 are formed on both sides of the base plate 17 across the rail 15. In the clip member 2 shown in FIGS. 9 to 11, the center leg 21 is fitted into the fitting hole 19 of the base plate 17, and the toe 22 is fitted to the base portion 15 of the rail 15.
The rail 15 and the base plate 1 are pressed and engaged with a.
It will be installed between 7 Fixing by fitting the center leg 21 and the fitting hole 19, and the rail 15 with this fixing part as a base point
The rail 15 is tightened to the sleeper 16 side by the turning force due to the elastic deformation of the arm 23 caused by the pressure contact of the toe 22 and the toe 22.

However, the rigid clip member 2
It is not possible to manually tighten the to the state shown in FIG. Therefore, the tightening device has been conventionally used.
FIG. 13 shows a conventional manual tightening tool 103 which is generally used.
FIG. The manual tightening tool 103 includes an elongated operating rod 104 and a claw member 1 that is pin-connected to the distal end side thereof.
It consists of 05. Insert the tip of the operating rod 104 into the fitting hole 1
9 is abuttingly engaged with the side surface of the base plate 17 around 9, and the tip end of the claw member 105 is locked to the arc-shaped corner portion 23a of the arch 23 of the clip member 2 facing the center leg 21 in the fitting hole 19, The clip member 2 is fitted into the fitting hole 19 while the top end of the operating rod 104 is rotated in the direction of the arrow, and the toe 22 is pressed against the rail 15. On the other hand, although not shown, there is a large tightening device using power as one of the tightening devices. Using a drive source such as a hydraulic cylinder, a hook member that abuts and engages with the clip member 2 is operated in the fitting direction to attach the clip member. Place the clip members 2 on both sides of the rail 15,
The structure is such that the clip members 2 on both sides are simultaneously pressed into the fitting holes 19 of the base plate 17 from opposite directions.

[0005]

When the clip member 2 is tightened by the manual tightening tool 103, the rail 1
If the clip member 2 is fitted only on one side of the rail 5, the rail 15
A relative displacement occurs between the sleeper 16 and the sleeper 16. Therefore, at least two clip members 2 are inserted from the opposite direction, and the rail 15
It becomes necessary to connect the sleeper 16 with the sleeper 16. Therefore, 2
A table manual clamp 103 is required and a minimum of two operators are needed to operate it simultaneously. Further, the clip member 2 is inserted into the fitting hole 19 of the base plate 17.
One or two assistants are required to meet the requirements.
That is, it is necessary for 3 to 4 people to work as a group and to carry out the work continuously. On the other hand, the manual tightening device 103
A large amount of force is required to operate the control rod 104 of
There is a problem that it becomes difficult to work for a long time and fatigue reduces work efficiency. Further, from the opposite direction, the clip member 2
Is difficult to synchronize due to manual work.
There is a problem that relative displacement occurs between the rail 6 and the rail 15, and the clip member 2 cannot be fitted smoothly and quickly. On the other hand, in the case of an automatic large-sized tightening device, the above-mentioned problems can be solved, but there are the following problems. That is, when the rail 15 is newly laid, the work time is relatively large, but in the case of the existing rail, the train, train, etc. do not operate at night or there is a gap between passing train and train. I have to work. However, it is not easy to mount a large tightening device on the rail, and it takes a lot of time. Therefore, it cannot be applied to existing rails. In addition, the large tightening device has a problem that the equipment cost increases and that it takes much time and cost for maintenance and the like.

The present invention solves the above problems. The clip member can be tightened quickly and smoothly, the working efficiency can be improved, the device structure is compact, and the handling is easy. Therefore, it is also applied to existing rails, and an object thereof is to provide a rail and sleeper tightening device that can reduce equipment costs.

[0007]

In order to achieve the above object, the present invention tightens a tightening tool which is fitted in a fitting hole of a base plate fixed to the sleeper side and presses and engages with a base portion of a rail. And a device main body movably mounted on the rail, and the elastic device movably supported by the device main body and arranged in opposite directions on both sides of the rail. A hook member, a single drive source that simultaneously drives the hook member in a direction toward or away from the tightening tool, and is movably supported by the apparatus main body and is attachable to and detachable from the rail to clamp the rail. A guide member to be engaged, and a control mechanism portion that drives and controls the hook member and the guide member, and the control mechanism portion includes:
At least a rail and a sleeper tightening device, in which a sequence valve for displacing the operation time between the hook member and the guide member is arranged, are used as the means.

[0008]

The tightening device in which the hook member, the single drive source thereof, the guide member, and the control mechanism part for driving and controlling the hook members are integrally mounted on the main body of the device is mounted on the rail as required. Since the tightening device is relatively compact, it can be easily mounted on the rail by a few people. Therefore, it can be sufficiently applied between trains and passing trains. Clip members are arranged opposite to each other on both sides of the rail, and an apparatus main body mounted on the rail is moved to the vicinity of the clip member. The control mechanism is operated to sandwich the rail with the guide member. Next, the clip members are simultaneously moved from opposite directions by a single drive source with the operation time deviated by a certain time, the center legs of the clip members are fitted into the fitting holes of the base plate, and the toe is attached to the base of the frame. Press against the part. Since the clip members are arranged in opposite directions, the operating forces of the hook members for fitting the clip members are balanced with each other, there is no relative displacement between the rail and the sleeper, and the clip members smoothly fit in the fitting holes. Be inserted. After the insertion of the clip member is completed, the hook portion and the guide portion are operated in the releasing direction by operating the control mechanism portion in the opposite direction. Thereafter, the same work is sequentially repeated to tighten the rail and the sleepers.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing the overall structure of this embodiment,
2 is a plan view of FIG. 1, and FIG. 3 is a side view of arrow D in FIG. The main structure of the tightening device of the present embodiment is that the device body 1 and the tightening device 2 (shown by a chain double-dashed line) 1 are engaged with each other.
A pair of hook members 3 and 4, a first cylinder 5 of a single drive source that drives the hook members 3 and 4 at the same time, a guide member 7 including four guide rollers 6, and a guide member 7 are driven. The second cylinder 8 serving as a single drive source, the engine 9, the hydraulic unit 10, the sequence valves 11 and 12, the control mechanism unit 14 including the direction control valve 13, and the like. Hereinafter, each component will be sequentially described in detail.

As shown in FIGS. 1 and 2, the apparatus main body 1
Are vertical frame members 24 and 25 arranged with appropriate gaps in the longitudinal direction of the rail 15 (hereinafter, referred to as X direction), horizontal members 26 and 27 fixed to the upper side surface of the vertical frame member 24, and horizontal members. A pipe member 28, a cross member 29, a pipe pipe 30, which is installed between the members 26 and 27, a handle 31 fixed to the vertical frame member 25, and a seat plate 32 fixed on the vertical frame member 25.
And the lifting hooks 33 and 34 fixed to the seat plate 32 and the pipe 30. In addition, pipe pipe 3
Rotating handles 35, 35 are rotatably pin-connected to both ends of 0. When not in use, the rotating handle 35 is supported by the pipe pipe 30 in a state of being hung downward as shown in FIG. Further, rotatable set screws 36, 36 and locking members 37, 37 are attached to the lateral members 26, 27, respectively. In the vertical frame member 24 and the vertical frame member 25, two guide pipes 3 of a guide member 7 described later are provided.
8, 39 are slidably installed. On the other hand, the vertical frame member 2
Brackets 42, 43 for pivotally supporting the collared rollers 40, 41 are fixed to 4, 25. Rollers with collar 40, 41
Is mounted on the top 15c (FIG. 12) of the rail 15 and movably supports the apparatus main body 1 on the rail 15.

Next, the hook members 3 and 4 will be described. As shown in FIGS. 2, 4 and 12, a fitting portion 18 having fitting holes 19 is formed on both sides of the rail 15 of the base plate 17 fixed to the sleeper 16 with a screw member 20. . The clip members 2 and 2 are fitted in the fitting holes 19 from opposite directions.
It is arranged at a position where it can be fitted inside. The pair of hook members 3 and 4 are arranged at positions where the flanged rollers 40 and 41 of the apparatus main body 1 can be engaged with the respective clip members 2 and 2 mounted on the rails. That is, the hook member 3
(The hook member 4 is also the same, so the description thereof is omitted and the reference numeral is shown in parentheses) is the guide member 7 as shown in FIGS.
Sliding part 44 (45) slidably supported by the guide pipe 38 (39) of the above, and bolts 46 on the sliding part 44 (45).
A first hook portion 48 (49) fixed by (47),
It is formed of a second hook portion 52 (53) fixed to the first hook portion 48 (49) with a bolt 50 (51).
A locking portion 54 is provided at the tip of the first hook portion 48 (49).
(55) is formed, and the second hook portion 52 (53) is provided with a locking portion 56 (57) and a retaining portion 58 (59), respectively. The sliding portion 44 (45) is fixed to the vertical frame member 24 (25) by fixing means (not shown).

Next, the structure around the first cylinder 5 for driving the hook members 3 and 4 will be described. As shown in FIGS. 1 and 2, the cylinder body 60 of the first cylinder 5
Is fixed to the vertical frame member 24, and its piston rod 61 extends in the X direction and is connected to the vertical frame member 25. An inlet port 62 and an outlet port 63 are formed in the cylinder body 60, and are connected to couplers 64 and 65 provided on the cross member 29 by pipes not shown.

Next, the guide members 7, 7 will be described. The guide pipes 38 and 39 are slidably installed between the vertical frame members 24 and 25, and block bodies 66 and 6 are provided at both ends thereof.
7, 68, 69 are fixed. In addition, one end sides of the levers 70 and 71 are fixed to the block bodies 68 and 69 on the vertical frame member 25 side while being inclined by a predetermined angle. Block body 66,6
Guide rollers 6, 6, 6, 6 are pivotally supported by 7, 68, 69 via bearings (not shown). A first link member 72 and a second link member 73 are provided on the other ends of the levers 70 and 71.
One end side of which is pin-coupled, and the first link member 72 and the second link member
The other end of the link member 73 is connected by a pin 74. On the other hand, the second fixed to the seat plate 32 on the vertical frame member 25
Connector 7 at the tip of piston rod 75 of cylinder 8
6 is connected to the pin 74. The cylinder body 77 of the second cylinder 8 is provided with an inlet port 78 and an outlet port 79, respectively.

Next, the control mechanism section 14 will be described.
As shown in FIG. 1, the hydraulic unit 10 is fixed on the base plate 98 and is operated by the engine 9. The base plate 98 is mounted on the horizontal members 26, 27 by locking one side surface to the locking member 37 of the horizontal members 26, 27 and fixing the other end surface by a thumbscrew 100 screwed to the set screw 36. To be done. In addition,
The hydraulic unit 10 is provided with a coupler 99. The sequence valves 11 and 12 have a handle 3 as shown in FIGS.
It is fixed to the side of 1. The directional control valve 13 having the operating lever 87 is also fixed to the handle 31. Next, the hydraulic circuit structure of the control mechanism unit 14 will be described with reference to FIG. The hydraulic unit 10 driven by the engine 9 (FIG. 1) is connected to the direction control valve 13 via a pipe 88, a check valve 81 and a pipe 90. A Lelys valve 80 is connected to a pipe 89 branched from the pipe 88 to adjust the pressure of the hydraulic unit. Pipes 91 and 92 are connected to the directional control valve 13, and the pipes 91 and 92 are selectively connected to the pipe 90 and the pipe 97 for returning to the tank 86 by the operation of the operation lever 87. The pipe 91 is connected to the inlet port 78 of the second cylinder 8, and the pipe 92 is connected to the outlet port 79.
A pipe 93 branched from the pipe 91 is connected to the check valve 82 and the pressure control unit 83 of the sequence valve 11. The turnip 64 connected to the sequence valve 11 is connected to the inlet port 62 of the first cylinder 5 by a pipe 92. On the other hand, a pipe 96 branched from the pipe 92 is connected to the check valve 84 of the sequence valve 12 and the pressure control unit 85. The coupler 65 connected to the sequence valve 12 is connected to the outlet port 63 of the first cylinder 5 via the pipe 95. With the above structure, when the directional control valve 13 is moved to the left side of FIG. 8 by the operation lever 87, the hydraulic oil of appropriate pressure from the hydraulic unit 10 is introduced from the inlet port 78 of the second cylinder 8 and the piston rod 75 Move to the bottom of the figure.
Further, the hydraulic oil enters the sequence valve 11 via the pipe 93, is pressurized by the pressure control unit 83, and is introduced from the inlet port 62 of the first cylinder 5 with a time delay, and the piston rod 61 is moved to the left side of FIG. Move in the direction. As will be described later in detail, when the piston rod 75 of the second cylinder 8 moves downward in FIG. 8, the guide member 7
The guide roller 6 rotates to the rail 15 side through the first link member 72 and the second link member 73 of
To pinch. Further, when the piston rod 61 of the first cylinder 5 moves leftward in FIG. 8, the fitting operation of the clip member 2 of the hook members 3 and 4 is performed. Due to the above-described operation of the second cylinder 8 and the first cylinder 5, the oil in the second cylinder 8 is discharged from the outlet port 79 to the pipe 9
2, 97 is returned to the tank 86 side, and the oil in the first cylinder 5 also passes through the pipe 95 from the outlet port 63, opens the check valve 84 of the sequence valve 12, and opens the pipe 9
It is returned to the tank 86 side through 6,97. When the operating lever 87 is moved in the opposite direction and the direction control valve 13 is brought to the right side of FIG.
It is introduced into the second cylinder through the outlet port 79 through 2 and moves the piston rod 75 to the upper side in FIG. At the same time, the hydraulic oil flows from the pipe 96 to the sequence valve 12
Enter the inside of the pipe and press it up to the proper pressure and lag for a while.
5 is introduced into the first cylinder 5 through the outlet port 63 to move the piston rod 61 to the right in FIG. By the above operation, the guide roller 6 of the guide member 7 separates from the rail 15, and the hook members 3 and 4 are released from the clip member 2 with a time delay. The oil in the second cylinder 8 and the oil in the first cylinder 5 are returned from the pipe 97 to the tank 86 side via the pipes 91, 94, 93 and the like.

Next, the operation and operation of the hook members 3 and 4 will be described with reference to FIGS. As shown in FIG. 4, the clip members 2 and 2 are inserted into the fitting holes 19 of the base plate 17 from the opposite directions. With the hook member 4 in contact with the clip member 2, the piston rod 61 of the first cylinder 5 is moved to the right in FIG. 4 (the same as the left in FIG. 8). The clip member 2 is fitted into the fitting hole 19 by the pressing force P of the hook member 3, but the reaction force is transmitted to the vertical frame member 24 side via the vertical frame member 25 and the first cylinder 5, and the hook The member 3 is moved leftward in FIG. 4 by the pressing force P, and the clip 2 is fitted into the fitting hole 19 by the hook member 3. That is, the pressing forces of the hook members 3 and 4 act in mutually opposite directions, and the pair of clip members 2 and 2 are fitted into the fitting holes 19 and 19 while balancing. As shown in FIGS. 1 and 6, the hook members 3 and 4 are the guide pipes 3.
Since it is slidably supported by 8, 8 and 39, if the hook member 4 side is temporarily displayed in FIG. 6, the hook member 3 moves from the position a to the position b, The pair of clip members 2, 2 are simultaneously fitted into the fitting holes 19, 19 of the base plate 17 by the members 3, 4.

As described above, in the hook member 3 (same for the hook member 4), the engaging portion 54 is formed on the first hook portion 48, and the engaging portion 56 and the retaining portion 58 are formed on the second hook portion 52. Formed respectively. As shown in FIG. 5, the locking portion 54 is locked to the arc-shaped corner portion 23a of the arch 23 of the clip member 2 (indicated by point A), and the locking portion 56 is provided at the bent end portion along the axis of the center leg 21. Contact (shown at point C). Further, the retaining portion 58 abuts and engages with the outer periphery of the fitting portion 18 into which the center leg 21 is fitted (indicated by a point B). Note that the locking portion 54 is locked to the arc-shaped corner portion 23 a, and at the same time, the locking portion 56 is brought into contact with the center leg 21. Therefore, the clip member 2 is pressed by the locking portions 54 and 56 while being fitted into the fitting hole 1
The retaining portion 56 is fitted in the inside 9, and the retaining portion 56 moves along the axial direction of the center leg 21 while contacting the fitting portion 18. As described above, the clip member 2 is smoothly fitted to the base plate 17 side while maintaining its posture. Although not shown in the drawing, the tow 22 of the clip member 2 is press-fitted to the base portion 15 a of the rail 15 in a state where the clip member 2 is fitted in the fitting hole 19.

Next, the operation of the guide portion 7 will be mainly described with reference to FIGS.
Will be described. In a state in which hydraulic oil is not introduced from the inlet port 78 of the second cylinder 8 shown in FIG. 8 (a state in which the piston rod 75 does not move downward as shown in FIG. 8), as shown by a two-dot chain line in FIG. The first link member 72 and the second link member 73 are pulled upward by the connecting tool 76. Therefore, the lever 70, the lever 71 and the lever 70, and the block bodies 68, 69 fixed to the lever 71, which are pin-connected to the first link member 72 and the second link member 73, are arranged on the rail 15 as shown by the two-dot chain line in the figure. It is held in an open state, separated from. On the other hand, in FIG. 8, when hydraulic oil is introduced from the inlet port 78 of the second cylinder 8 and the piston rod 75 moves downward, as shown by the solid line in FIG. 7, the first link member 72 and the second link 72 are connected. The member 73 is held in a substantially collinear horizontal state, and accordingly, the block body 68,
69 rotates around the guide pipes 38 and 39, the guide rollers 6 and 6 approach the rail 15 side, contact the neck portions 15b and 15b of the rail 15, and clamp the rail 15. On the other hand, as shown in FIG. 6, the block bodies 68 and 69 are fixed to one end sides of the guide pipes 38 and 39, respectively.
8 and 39 are rotatably supported by the vertical frame members 25 and 24, and block bodies 66 and 67 are fixed to the other ends. Therefore, as shown in FIG. 7, when the guide rollers 6, 6 on the side of the block bodies 68, 69 rotate, the guide rollers 6, 6 on the side of the block bodies 66, 67 also rotate in synchronization with the rotation of the guide rollers 6, 6. Hold it.

Next, the overall operation of the tightening device of this embodiment,
The operation will be described. In the initial state, the control mechanism unit 1
4 is held in the state shown in FIG. That is, the piston rod 61 of the first cylinder 5 is held in a state of being moved rightward, and the block members 3, 4 are held in a state of being separated from each other. On the other hand, the piston rod 75 of the second cylinder 8 is held in a state of moving upward, and the guide rollers 6, 6, 6, 6 are held in respective open states. Further, the directional control valve 13 of the control mechanism unit 14 is held in the state on the right side of FIG. The turning handles 35, 35 are placed in a horizontal state, the turning handles 35, 35 and the handle 31 are gripped, the whole tightening device is lifted, and the collared rollers 40, 41 are placed on the rail 15, and the tightening device is mounted on the rail 15. . In this state, the tightening device is in an unstable state, so the insulator 102 rotatably fixed to the tip of the rod 101 is placed on the opposite rail 15 as shown in FIG. In addition,
The insulator 102 is used to prevent a short circuit of the current between the rails 15 and 15. The entire tightening device is moved along the rails 15, the tip end of the center leg 21 is previously inserted into the base plate 17, and the clip members 2 and 2 are moved to the desired standby positions. In this state, the operating lever 87 of the directional control valve 13 is operated to switch to the state on the left side in FIG. As a result, the hydraulic oil from the hydraulic unit 10 is sent to the second cylinder 8 as described above, the guide member 7 operates as shown in FIG.
The rail 15 is clamped by 6, 6, and the tightening device is fixed on the rail 15. On the other hand, the hydraulic oil is introduced into the first cylinder 5 via the sequence valve 11 with a time delay, and the piston rod 61 moves leftward. As described above, by the operation of the first cylinder 5, the hook members 3 and 4 simultaneously operate from the opposite directions, and the clip members 2 and 2 are fitted into the fitting holes 19 and 19 of the base plate 17 while maintaining the balance state. . At this time, as shown in FIG. 5, since the hook members 3 and 4 engage with the clip member 2 at points A, B, and C, the clip member 2 is securely and smoothly fitted into the fitting hole 19. . When the fitting of the desired pair of clip members 2 and 2 is completed, the operation lever 87 of the directional control valve 13 is returned to the state on the right side in FIG. Thereby, as described above, the piston rods 61 and 75 of the first cylinder 5 and the second cylinder 8 move in opposite directions. as a result,
The hook members 3 and 4 are separated from the clip members 2 and 2, and the guide rollers 6, 6, 6 are delayed in operation time.
6 rotates in a direction away from the rail 15. Next, the handle 31 is gripped and the entire tightening device is moved along the rail 15 to the next clip member 2, 2. Hereinafter, the same operation is repeated.

In this embodiment, the guide rollers 6, 6, 6, 6 of the guide member 7 are integrally connected to form a single second roller.
It is driven in the same manner by the cylinder 8 and the sliding members 44 and 45 of the hook members 3 and 4 are slidably supported by the guide pipes 38 and 39 of the guide member 7 to make the entire apparatus compact. However, the device structure is not limited thereto. Further, as shown in FIG. 5, the hook portions 3 and 4 and the clip members 2 and 2 are A,
A desirable structure in which the B and C points are simultaneously engaged is adopted, but the structure is not limited thereto. Further, in the present embodiment, the structure in which the hook members 3 and 4 are moved from the opposite directions along the horizontal direction is adopted, but another structure capable of simultaneously operating from the opposite directions may be adopted. Further, the hydraulic unit 10, the sequence valves 11 and 12, the directional control valve 1
The arrangement of 3 and the like is not limited to that shown in the drawing.

In this embodiment, the clip members 2 and 2 are arranged on both sides of one rail 15 and the clip members 2 and 2 are fitted at the same time. However, the two rails 15 and 15 have substantially the same structure as in this embodiment. By forming a composite tightening device that simultaneously mounts the structure tightening device, four clip members 2, 2,
It is also possible to fit 2, 2 on both sides of the two rails 15, 15 at the same time. The complex tightening device may be formed as an integral structure based on the tightening device of this embodiment, or may be a separate structure and connected as necessary. Of course, it is desirable to have a structure in which the rails 15 and 15 are adjustable so that they can be accommodated even if the span between the rails 15 is different.

[0021]

According to the present invention, the following remarkable effects are obtained. (1) Since the hook members are simultaneously actuated from the opposite directions by a single drive source, and the tightening tool is fitted into the sleeper base plate by the same pressing force, the sleeper and the rail are tightened. As compared with the manual tightening tool, the fitting operation of the tightening tool can be performed more quickly and smoothly.
(2) Since the device structure is formed of one that can be operated by one person, a great deal of labor can be saved. (3) All components are assembled on the device body, the guide member is operated by a single drive source, and the guide member is used to form a structure in which the hook member is movably supported on the device body side. Therefore, the entire device is compactly packed, lightweight,
And it can be formed at low cost. (4) A sequence valve is arranged in the control mechanism so that there is a time delay between the rail holding by the guide member and the operation of the hook member, so that the tightening tool should not be inserted after the entire device is securely held on the rail. Thus, the work of inserting the tightening tool is surely performed.
(5) Since the hook member and the tightening tool have a structure that prevents the tightening tool from rotating with respect to the pressing direction so that the tightening tool can be fitted while being held stably, the fitting operation of the tightening tool can be performed extremely smoothly. As a result, working efficiency can be greatly improved. (6) Compared with the manual tightening tool, the labor is extremely small, the fatigue is reduced, and the work can be performed for a long time.
(7) Since the fastening device is attached to and detached from the rail in an extremely short time, it can be applied inexpensively even to an existing rail that does not have a working time interval.

[Brief description of drawings]

FIG. 1 is a front view showing the overall structure of an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view taken along the arrow D in FIG.

FIG. 4 is a partial plan view for explaining the operation of the hook member of the embodiment.

FIG. 5 is a partial front view for explaining an engaged state of the hook member and the clip member of the embodiment.

FIG. 6 is a partial front view for explaining the operation of the hook member and the guide member of the same embodiment.

FIG. 7 is a partial side view for explaining the structure and operation of the guide member of the same embodiment.

FIG. 8 is a circuit configuration diagram of a control mechanism unit of the embodiment.

FIG. 9 is a plan view of the clip member (fastener) of the same embodiment.

10 is a front view taken along the arrow E of FIG.

FIG. 11 is a side view taken along arrow F of FIG.

FIG. 12 is a cross-sectional view showing an engaged state of a tightening tool for tightening the rail and the sleeper.

FIG. 13 is a partial front view showing a schematic structure of a conventional manual tightening tool.

[Explanation of symbols]

 1 Device Main Body 2 Clip Member 3 Hook Member 4 Hook Member 5 First Cylinder 6 Guide Roller 7 Guide Member 8 Second Cylinder 9 Engine 10 Hydraulic Unit 11 Sequence Valve 12 Sequence Valve 13 Directional Control Valve 14 Control Mechanism Section 15 Rail 15a Base portion 15b Neck portion 15c Top portion 16 Sleeper 17 Base plate 18 Fitting portion 19 Fitting hole 20 Bolt 21 Center leg 22 Toe 23 Arch 24 Vertical frame member 25 Vertical frame member 26 Horizontal member 27 Horizontal member 28 Pipe member 29 Cross member 30 Pipe pipe 31 Handle 32 Seat Plate 33 Lifting Hook 34 Lifting Hook 35 Rotating Handle 36 Set Screw 37 Locking Tool 38 Guide Pipe 39 Guide Pipe 40 Collared Roller 41 Collared Roller 42 Bracket 43 Bracket 44 Sliding Member 45 Sliding member 46 Bolt 47 Bolt 48 First hook part 49 First hook part 50 Bolt 51 Bolt 52 Second hook part 53 Second hook part 54 Locking part 55 Locking part 56 Locking part 57 Locking part 58 Detention part 59 Detention part 60 Cylinder body 61 Piston rod 62 Inlet port 63 Outlet port 64 Coupler 65 Coupler 66 Block body 67 Block body 68 Block body 69 Block body 70 Lever 71 Lever 72 First link member 73 Second link member 74 Pin 75 Piston rod 76 Connector 77 Cylinder body 78 Inlet port 79 Outlet port 80 Relief valve 81 Check valve 82 Check valve 83 Pressure control section 84 Check valve 85 Pressure control section 86 Tank 87 Operation lever 88 piping 89 piping 90 Piping 91 Piping 92 Piping 93 Piping 94 Piping 95 Piping 96 Piping 97 Piping 98 Base plate 99 Coupler 100 Thumbscrew 101 Rod 102 Manual insulator 103 Manual tightening tool 104 Operation rod 105 Claw member

Claims (3)

[Scope of utility model registration request] 1. A tightening device for tightening a tightening tool that is fitted into a fitting hole of a base plate fixed to the sleeper side and presses and engages with a base portion of a rail, and is movably mounted on the rail. Device main body, a hook member that is movably supported by the device main body, engages with the tightening tool that is arranged on opposite sides of the rail in opposite directions, and a direction in which the hook member approaches or separates from the tightening tool. A single drive source that is driven at the same time, a guide member that is movably supported by the apparatus main body and that is detachably engaged with the rail so as to clamp the rail, and drive control of the hook member and the guide member. A rail and sleeper characterized by comprising a control mechanism section, and a sequence valve for arranging at least the operation time between the hook member and the guide member is arranged in the control mechanism section. Tightening device 2. The tightening tool has an integrated structure of a center leg fitted in a fitting hole of the base plate, a toe for press-contacting and engaging with a base portion of the rail, and an arch connecting the toe and the center leg. A formed elastic member, wherein the hook member has a shape that simultaneously engages the center leg and the arch and abuts and engages with the base plate along the axial direction of the fitting hole. The rail and sleeper tightening device described in 1. 3. The rail according to claim 1, wherein a plurality of the guide members are arranged on at least both sides of the rail along the longitudinal direction thereof and are simultaneously driven by a single drive source. And sleeper tightening device.