JP2525121B2 - Clip-type rail fastener attachment / detachment device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clip-type rail fastener attaching / detaching device.

[0002]

2. Description of the Related Art As a means for fastening a rail to a rail base such as a PC sleeper or a slab track, FIGS.
The clip type fastener shown in 2 may be used.

In these figures, 1 is a rail base P
C sleepers, 2 are rails, and 3 is an example of a fastener.
The fastener 3 includes a shoulder 4 which is fixed as a pair of right and left with the rail 2 interposed therebetween, a clip 5 which is attached to the shoulder 4, and an insulator 6 which is sandwiched between the shoulder 4 and the clip 5 and the rail 2. It is configured.

Each shoulder 4 has a tubular body 8 having an insertion hole 7, a clip seat 9 on one side, and a spike 10 on the lower surface.
Are integrally formed, the space for laying the rail 2 is opened, the insertion hole 7 is parallel to the laying direction of the rail 2, the body portions 8 are opposed to each other, and the spike 10 is connected to the PC sleeper 1 It is embedded and fixed in.

The clip 5 is a wire spring made of steel, and a shoulder clip portion 13 extends from one end of a straight rod-shaped center leg 11 to a side of the center leg 11 via a rear arch portion 12 which is bent by 180 degrees. , The front arch portion 1 that bypasses the center leg 11 from the shoulder clip portion 13 and rises upward and bends 180 degrees
The flat-shaped rail clip portion 15 extends to the other side of the center leg 11 via 4 and has a “” shape in plan view.

The insulator 6 is a member having a substantially L-shaped cross section which exactly fits the upper surface and the side surface of the base 2a forming the lower end of the rail 2, and is made of an insulating material.

The rail 2 is connected to the PC by the fastener 3 composed of the shoulder 4, the clip 5 and the insulator 6.
To fasten the sleeper 1, the rail 2 is placed between the pair of left and right shoulders 4, and the insulators 6 are fitted between the rails 2 and the shoulders 4 so that the insulators 6 are aligned with the upper and side surfaces of the base 2a on both sides of the rail 2. The center leg 11 of one clip 5 is inserted into the insertion hole 7 of the one shoulder 4 from the front side, and the center leg 11 of the other clip 5 is inserted into the insertion hole 7 of the other shoulder 4 from the rear side.

In this state, the spring force of the clip 4 causes the rail clip portion 15 to press the base 2a via the insulator 6 and the shoulder clip portion 13 to press the clip seat 9 to the PC sleeper 1, respectively. Thus, the rail 2 is fastened to the PC sleeper 1. A track pad 16 is usually interposed between the base 2a of the rail 2 and the PC sleeper 1.

As described above, when the rail 2 is fastened to the PC sleeper 1 by the fastener 3, or when the rail 2 needs to be replaced, the fastener 3 is removed, that is, the center leg of the clip 5 is removed. 11 is the insertion hole 7 of the shoulder 4
Conventionally, a worker manually inserts or pulls out into or from a special hand tool to which the principle of leverage is applied.

[0010]

As described above, the fastener 3
To manually attach and detach the clip 5 of the
It requires some kind of technology and is not easy.
Due to the large number of fasteners 3, a great amount of labor is required for the worker and it takes time, and there is a limit to increase the number of workers to reduce it, which is extremely inefficient.

The present invention has been made in view of the above circumstances, and provides a clip-type rail fastener attaching / detaching device capable of easily attaching / detaching a large number of fasteners in a short time and efficiently. It is intended to be provided.

[0012]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and as claim 1, a rail is provided on a rail base made of sleepers or slabs on which rails such as rails are laid. A straight rod-shaped center leg and this center are provided for each shoulder that is fixed as a pair of left and right and that extends in the front-back direction along the rail, and each shoulder that has a clip seat formed on the rail side of this insertion hole. A pair of clips including a shoulder clip portion formed through a rear arch portion that bends approximately 180 degrees from one end of the leg, and a rail clip portion formed through a front arch portion that bends approximately 180 degrees from the shoulder clip portion The center leg of one clip into the insertion hole of one shoulder from one end side, and the center leg of the other clip the other side. From the other end into the insertion hole of Da, respectively inserted, in this state, the rail clip portion and the shoulder clip portion of the clip and pressing the clip seat rail and the shoulder on each of the rail infrastructure,
A clip-type rail fastener that fastens rails to a rail base, is a detachable device that inserts and pulls out the center legs of a pair of clips into and from the insertion holes of each shoulder. A carriage that is supported by both rails and that can run on this rail, a frame that is supported by this carriage so that it can be lifted and lowered by an elevating mechanism so that it separates from and comes in contact with the rail, and a frame that is supported by this frame and follows the rail. A drive mechanism in which a movable body moves in the front-rear direction, and an insert that is attached to the movable body of the drive mechanism so as to be engageable with the front arch portion of one clip and inserts the clip in accordance with the movement of the movable body. A detachable piece consisting of a hook or a pull-out hook for pulling out the clip according to the movement of the movable body, and a front arch portion of the other clip on the frame. A detachable piece that is attached so as to be engageable and that includes an insertion hook that inserts the clip in accordance with the movement of the movable body or an extraction hook that extracts the clip in accordance with the movement of the movable body. is characterized in that protrusions take contact with a reaction force on the shoulder after extracting the clip is formed.

The frame of the fastening unit is detachably attached to attachment portions provided at the front and rear of the carriage.

According to a third aspect of the present invention, the detachable piece is engaged with the center leg side of the front arch portion of the clip, and the center leg of the clip is inserted into the shoulder insertion hole by moving the drive mechanism to one of the movable bodies. The feature is that it is an insertion hook to be inserted into.

Further, according to a fourth aspect of the present invention, the detachable piece is engaged with the anti-center leg side of the front arch portion of the clip, and the movable body of the drive mechanism is moved to the other side.
It is characterized in that it is a pull-out hook that pushes out the center leg of the clip inserted in the insertion hole of the shoulder from the insertion hole and pulls it out.

According to a fifth aspect of the present invention, the detachable piece is characterized in that the insertion hook according to the third aspect and the extraction hook according to the fourth aspect are integrated at a predetermined interval.

According to a sixth aspect of the present invention, in the detachable piece according to the fifth aspect, a downwardly extending clip scattering preventing projection is formed at an end portion of the insertion hook on a side of a moving direction of the movable body to the other side. It is characterized by being.

[0018]

According to the clip type rail fastener attaching / detaching device of the present invention, the carriage is stopped immediately above the fastener, the frame is lowered by the elevating mechanism, and the movable body of the drive mechanism is moved along the rail. By engaging each attachment / detachment piece with the front arch portion of each clip and further moving the movable body from this state, the center leg of the clip is attached / detached to / from the insertion hole of the shoulder. Therefore, the labor required by the worker is greatly reduced, the work time is shortened accordingly, and the attachment / detachment work of the fastener can be performed extremely efficiently. Also, since the removable piece is configured to move along the insertion / removal direction of the center leg of the clip with respect to the insertion hole of the shoulder, the driving force of the drive mechanism is the force with which the clip is inserted or removed with respect to the removable piece. As a result, it is transmitted with almost no loss, and the attaching / detaching operation is smoothly performed.

Further, if the frame of the fastening unit is detachably attached to the mounting portions provided at the front and rear of the dolly, the fastening unit can be separated from the dolly and the transportation and storage of the device itself can be made compact. With
It is possible to arbitrarily change the traveling direction of the device.

Further, if the attaching / detaching piece has a structure in which the insertion hook and the extraction hook are integrated at a predetermined interval,
It is not necessary to replace the hooks one by one when inserting or pulling out, and it is possible to insert or pull out the clip on only one of the left and right sides of the rail.

Further, in the detachable piece in which the insertion hook and the extraction hook are integrated, if the clip scattering prevention projection extending downward is formed at the end of the insertion hook on the moving direction side to the other side of the movable body, the extraction hook can be used. The removed clip hits the clip scattering prevention protrusion and falls below it so that it does not scatter around.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1, 2 and 3, 1, 2, 3
Indicates the same PC sleepers, rails, and fasteners as those shown in FIGS. 19 to 22 , respectively, and the reference numeral 20 indicates
It is the attachment / detachment device of the present embodiment.

The attachment / detachment device 20 includes a carriage 21 that can travel on the rails 2 along a pair of left and right parallel rails 2, and a fastening unit 19 fixed to the carriage 21.
It is composed mainly of and.

The dolly 21 extends obliquely in the opposite directions to the rail 2 and has a pair of front and rear cross beams 23 having one ends connected to each other and a vertical beam 24 for connecting the other end portions of the cross beams 23 to each other. The basic shape is an isosceles triangle in a plan view. Leg portions 25 and 26 extending downward are provided at the joint portions of the respective lateral beams 23 and at the other end portions on the opposite side of the joint portions, and these leg portions 25 and 26 roll on the rail 2. Both moving collar wheels 25a and 26a are mounted. A vertical beam 24 is bridged and fixed to the upper ends of the legs 26. The wheels 25a and 26a are made of an insulating material.

That is, the truck 21 is of a three-wheel type, and the wheels 25a of the leg portions 25 are placed on one rail 2 and the wheels 26a of the leg portions 26 are placed on the other rail 2, respectively, and the rails 2 extend in the extending direction. If pushed, the wheels 25a and 26a roll to run on the rail 2. Moreover, the dolly 21 has both rails 2
It is supported by and can secure stability during movement.
In this case, the wheel 25a is on the right side and the wheel 26a is on the left side, and the traveling direction, that is, the forward direction is the arrow (a) direction in FIG. At this time, each horizontal beam 23 becomes substantially horizontal like the PC sleeper 1, and the vertical beam 24 and the rail 2 (the trolley 2
There is an appropriate gap between the rail 1 and the rail 2) on the left side in the traveling direction.

The fastening unit 19 comprises a frame 22 and a drive cylinder 33 supported by the frame 22. The frame 22 is supported so as to be capable of moving up and down with respect to the carriage 21 so as to separate from and contact one rail 2, and as shown in FIGS. 4, 5, and 6, the upper plate 22a and the front plate 2 are supported.
2c, a rear plate 22d, and a lower plate 22e are joined together to form a rectangular box. The vertical beam 24 of the frame 22 and the rail 2 on the left side in the traveling direction (hereinafter, referred to as the working side rail 2
A, the other is simply the rail 2B, and when the directions such as left, right, front and rear are described, it is arranged between the rail 2B and the traveling direction of the carriage 21).

Guide rods (not shown) which stand vertically to the upper plate 22a are fixed to the four corners of the upper plate 22a, and these guide rods are slidable on guide portions (not shown) of the vertical beams 24. Has been inserted. Further, the tip of a piston rod 28b of an elevating cylinder 28, which is an elevating mechanism for the frame 22, is engaged with the upper surface of the upper plate 22a.

The lifting cylinder 28 has a structure in which the piston rod 28b moves forward and backward from the cylinder body 28a, and the piston rod 28b is directed vertically downward to a bracket 29 integrally fixed to the vertical beam 24 and extending leftward. The end of the cylinder body 28a is fixed so as to move back and forth. The frame 22 descends as the piston rod 28b extends, and the lower end edges of the front plate 22c and the rear plate 22d approach the PC sleeper 1.

At the time of this lowering, the working side rail 2A
Notches 30 are formed in the front plate 22c and the rear plate 22d, respectively. That is,
When the frame 22 is lowered by the elevating cylinder 28, the work-side rail 2A is fitted into the notch 30 and the frame 2
2 is in a state of straddling the work-side rail 2A left and right. In this state, the lower plate 22e forming the frame 22 is located on the right side of the work side rail 2A. That is, this lower plate 22
e is fixed between the right end portions of the front plate 22c and the rear plate 22d.

Between the front plate 22c and the rear plate 22d on the left side of the notch 30, a pair of left and right guide rods 31 extending in the front-rear direction are bridged, and a slide block 32 slides along these guide rods 31. It is possible. The slide block 32 is moved back and forth by a drive cylinder (drive mechanism) 33 fixed to the front plate 22c.

The drive cylinder 33 has a structure in which a piston rod (movable body) 33b advances and retreats from the cylinder body 33a. One end of the cylinder body 33a is fixed to the front surface of the front plate 22c (the left side of the notch 30), and the piston Rod 33
The b passes through the front plate 22c and moves forward and backward. The slide block 32 is engaged with the tip of the piston rod 33b, and moves in the front-rear direction as the piston rod 33b moves back and forth.

At a fixed position on the lower surface of the slide block 32, there are an insertion hook (attachment / detachment piece) 34 for inserting the clip 5 of the fastener 3 into the shoulder 4 and an extraction hook 35 (attachment / detachment piece) which is pushed out from the shoulder 4 and pulled out. Either one is designed to be attached.

As shown in FIGS. 7 and 8, the insertion hook 34 has a rectangular parallelepiped shape having a vertically long cross section, and a hook portion 34a is formed at one end in the length direction thereof. The hook portion 34a is an arcuate recess that opens to the left and right and the front portion, and is adapted to engage with the peripheral surface of the front arch portion 14 of the clip 5 on the side of the center leg 11 and the hook portion 34a. With the hook facing forward, insert hook 3
4 is attached to the lower surface of the slide block 32.

On the other hand, as shown in FIGS. 9 and 10, the pull-out hook 35 has a hook portion 35a at one end surface thereof, and a convex portion 35b protruding downward is formed at the other end portion on the opposite side thereof. There is. At the lower portion of the hook portion 35a, the tapered surface 3
5c is formed, and the hook portion 35a abuts on and engages with the peripheral surface of the front arch portion 14 of the clip 5 inserted in the shoulder 4 on the side opposite to the center leg 11. Further, the convex portion 35b is formed on the shoulder 4
One end surface of the body portion 8 is brought into contact with and engaged with. The extraction hook 35 is attached to the lower surface of the slide block 32 with the hook portion 35a facing rearward.

The insertion hook 34 and the withdrawal hook 3
5 is attached to the slide block 32,
Moreover, when the frame 22 is in the raised state, each hook portion 34a,
35a is a fastener 3 on the left side (outside of the working side rail 2A)
The clip 5 is positioned directly above the front arch portion 14 of the clip 5.

The insertion hook 34 and the withdrawal hook 35 described above.
Are also attached to fixed positions on the lower surface of the lower plate 22e of the frame 22 one by one. Of these, the insertion hook 34
Is attached to the front portion of the lower plate 22e with the hook portion 34a facing rearward, and the extraction hook 35 is attached to the rear portion of the lower plate 22e with the hook portion 35a facing forward. The insertion hook 34 and the extraction hook 35 are attached to the lower plate 22e of the frame 22 and when the frame 22 is in the raised state, the hook portions 34a and 35a are located on the right side (inside the working side rail 2A). It is located directly above the front arch portion 14 of the clip 5 in the fastener 3.

As described above, the insertion hook 34 and the withdrawal hook 35 are formed as a left and right pair of one attached to the slide block 32 and one attached to the lower plate 22e of the frame 22. In the following description, the slide block 3 is used as necessary.
The insertion hook 34 and the withdrawal hook 35 attached to 2 are the movable side insertion hook 34A and the movable side withdrawal hook 35A, and the insertion hook 34 and the withdrawal hook 35 attached to the lower plate 22e of the frame 22 are the fixed side insertion hooks. 34B and movable side extraction hook 35B.

The hooks 34 and 35 are attached to the slide block 32 and the lower plate 2 by attaching means such as screws.
It is detachably attached to 2e.

The elevating cylinder 28 and the drive cylinder 33 are of a hydraulic type, and are operated by a hydraulic unit 36 placed and fixed on each horizontal beam 23 of the carriage 21. In particular, the engagement position of the piston rod 28b of the lifting cylinder 28 with the upper plate 22a of the frame 22 is immediately above the center of gravity of the frame 22, the drive cylinder 33, and the hooks 34, 35 to be attached.
Also, the drive cylinder 33 can be lifted up and down in a balanced manner by its own weight.

The operation switch 37 of the hydraulic unit 36 for operating the cylinders 28, 33 is provided on the post 39 to which the traveling handle 38 is attached. The post 39 stands at the rear end of the vertical beam 24 of the carriage 21, and the handle 3 extending laterally is provided at the upper end of the post 39.
8 is fixed.

The above is the configuration of the attachment / detachment device 20 of the present embodiment. Next, the method of using the attachment / detachment device 20 and the operation associated therewith will be described.

First, the rail 2 is attached to the PC sleeper by the fastener 3.
1 , the center leg 1 of the clip 5
The case of inserting 1 into the insertion hole 7 of the shoulder 4 will be described.

In advance, a pair of rails 2 is laid between the pair of shoulders 4 fixed to the PC sleeper 1 with a track pad 16, and an insulator 6 is provided between the rails 2 and the shoulders 4.
Sandwich. And a pair of shoulders 4 that sandwich the rail 2
The distal ends of the center legs 11 are slightly inserted into the insertion holes 7 so that they can be inserted from the one end side and the other end side, respectively, and a temporary insertion state is set. In this case, the tip of the center grip 11 of the clip 5 is inserted into the insertion hole 7 of the shoulder 4 on the left side of the work rail 2A from the rear and from the front into the insertion hole 7 of the shoulder 4 on the right side.

The attachment / detachment device 20 is placed on the pair of left and right rails 2 so that the attachment / detachment device 20 can run and is in the initial setting state. That is, the attachment / detachment piece attached to the slide block 32 is used as the insertion hook 34, the frame 22 is raised by the elevating cylinder 28, the piston rod 33b of the drive cylinder 33 is extended, and the slide block 32 is positioned near the rearmost portion of the movement range. .

With this initial setting state held, the handle 38
7 to move the carriage 21 forward, and when viewed from the side, between the movable side insertion hook 34A and the fixed side insertion hook 34B, the front surface of each left and right clip 5 in the temporary insertion state is pressed. When the arch portion 14 is arranged, the carriage 21 is stopped.

Next, the elevating cylinder 28 lowers the frame 22 to a position where the hook portion 34a of each hook 34 engages with the front arch portion 14 of each clip 5.

Next, the piston rod 33b of the drive cylinder 33 is contracted. Then, the slide block 32
Moves forward, and the hook portion 34a of the movable side insertion hook 34 becomes
The clip 5 on the left side is engaged with the peripheral surface of the front arch portion 14 on the side of the center leg 11, that is, the rear side. When the piston rod 33b is further contracted from this state, the left clip 5 is moved forward, and the center leg 11 thereof is completely inserted into the insertion hole 7 of the shoulder 4.

From this state, the drive cylinder 33 is further
The piston rod 33b of is contracted. Then, the left clip 5 is restrained from further movement by the shoulder 4, and the dolly 21 moves (runs) backward with a state in which the left clip 5 presses the shoulder 4 as a reaction force. That is, the cylinder body 33a moves rearward with the piston rod 33b fixed, and the frame 22 and the carriage 21 move backward accordingly. It should be noted that the backward movement of the carriage 21 is gradually caused by the friction of the rail clip portion 15 and the shoulder clip portion 13 against the insulator 6 and the clip seat 9 of the shoulder 4 while the center leg 11 of the left clip 5 is being inserted. It may start at.

Then, when the hook portion 34a of the fixed side insertion hook 34B engages with the front side of the front arch portion 14 of the right clip 5, the piston rod 33b is further contracted to move the carriage 21 rearward. The clip 5 on the right side is moved backward, and its center leg 11 is completely inserted into the insertion hole 7 of the shoulder 4.

As described above, the center legs 11 of the clips 5 are inserted into the insertion holes 7 of the pair of left and right shoulders 4 from the rear and the front, respectively, and the rail clip portions 15 of the clips 5 are inserted through the insulator 6 to the base 2a.
, And the shoulder clip portion 13 attaches the clip seat 9 to
Each is pressed against the PC sleepers 1, and the work-side rails 2A are fastened to the PC sleepers 1.

Thereafter, the piston rod 33b of the drive cylinder 33 is extended to return the slide block 32 to the rearmost position, and the carriage 21 is moved slightly forward to move the movable side and fixed side insertion hooks 34A and 34B from the respective clips 5. Then, the frame 22 is lifted by the lifting cylinder 28.
To raise the attaching / detaching device 20 to the initial setting state.

The above procedure is repeated for the many fasteners 3 in the order in which they are aligned, and the work-side rails 2A are fastened to the many PC sleepers 1. To perform the above work on the other rail 2B, change the orientation of the attachment / detachment device 20 by 180 degrees,
It may be replaced on the left and right rails 2.

Next, a case where the fastening state of the fastener 3 is released, that is, the center leg 11 of the clip 5 is pulled out from the insertion hole 7 of the shoulder 4 will be described.

In the same manner as described above, the attachment / detachment device 20 is placed on the pair of left and right rails 2 so that it can travel and is in the initial setting state. That is, the detachable piece to be attached to the slide block 32 is the extraction hook 35, the frame 22 is raised by the elevating cylinder 28 to bring the piston rod 33b of the drive cylinder 33 into the most contracted state, and the slide block 32 is placed in the vicinity of the frontmost portion of the moving range. Position it.

With this initial setting state, the handle 38
9 and FIG. 10, the front arch portion 14 of each clip 5 is arranged between the movable side extraction hook 35A and the fixed side extraction hook 35B as viewed from the side. Then, the carriage 21 is stopped.

Then, the elevating cylinder 28 lowers the frame 22 to a position where the hook portion 35a of each hook 35 engages with the front arch portion 14 of each clip 5.

Next, the piston rod 33b of the drive cylinder 33 is extended. Then, slide block 3
2 is retracted, the hook portion 35a of the movable side extraction hook 35
Of the left clip 5, the front arch portion 14 of the left clip 5 abuts against and engages with the peripheral surface on the side opposite to the center leg 11, that is, the front side. When the piston rod 33b is further extended from this state, the left-side clip 5 is firmly fastened by the spring force, so that the left-side clip 5 does not move backward, which is still in the pull-out direction, and the left-side clip 5 that does not move has a reaction force. Then, the carriage 21 moves forward. That is, the cylinder body 33a moves forward with the piston rod 33b fixed,
Along with this, the frame 22 and the carriage 21 move forward.

When the carriage 21 moves forward in this way, the hook portion 35a of the fixed-side extraction hook 35 is moved to the clip 5 on the right side.
The front arch portion 14 of the above hits and engages with the rear side. Therefore, the movable side and fixed side extraction hooks 35A, 35B
The respective hook portions 35a of the above are brought into a state of engaging and engaging with the anti-center leg 11 side of the front arch portion 14 of the left and right clips 5.

From here, by further extending the piston rod 33b, each withdrawing hook 35 is attached to each clip 5.
The center leg 11 to the shoulder 4
Through the insertion hole 7. Both the left and right clips 5 may come off at the same time, but in many cases either one of the clips 5 comes out first. In this case, the convex portion 35 of the extraction hook 35 on the side where the clip 5 has been extracted from the shoulder 4 first.
b hits one end surface of the body portion 8 of the shoulder 4, and a new reaction force is applied thereto to extend the piston rod 33b, whereby the remaining clip 5 eventually comes out of the shoulder 4.

As described above, each clip 5 is removed from each insertion hole 7 of the pair of left and right shoulders 4. Thereafter, the piston rod 33b of the drive cylinder 33 is contracted to return the slide block 32 to the foremost end position, the frame 22 is raised by the elevating cylinder 28, and the attachment / detachment device 20 is set to the initial setting state.

The above procedure is repeated in the order in which the fasteners 3 are arranged side by side, and the fastening state of the fasteners 3 with respect to the PC sleepers 1 is removed. In order to perform the above-mentioned work on the other rail 2B, the attachment / detachment device 20 may be turned 180 degrees and placed on the left and right rails 2 in the same manner as when the clip 5 is inserted.

Therefore, according to the attachment / detachment device 20 for the fastener 3 of the present embodiment, the motion required for the worker is
Since most of the traveling of the attachment / detachment device 20 and the operation of the cylinders 28 and 33 (operation of the operation switch 37 of the hydraulic unit 36), the worker does not require any specially difficult technique to attach or detach the fastener 3. It can be performed. In other words, the labor required is greatly reduced compared to the conventional one,
Along with this, the working time is also shortened, and the attachment / detachment work of the fastener 3 can be performed very efficiently.

Further, since the insertion hook 34 or the extraction hook 35 is configured to move along the insertion / removal direction of the clip 5 into / from the insertion hole 7 of the shoulder 4, the driving force of the drive cylinder 33 is applied by the insertion hook 34. Alternatively, the force for inserting or pulling out the clip 5 with respect to the extraction hook 35 is transmitted with almost no loss. In other words, the clip 5 does not move vertically or horizontally. As a result, the clip 5 can be smoothly inserted into or removed from the shoulder 4.

The operation and order of operation of each of the cylinders 28 and 33 can be automated by the control device, and by doing so, the burden on the worker can be further reduced. Further, the attachment / detachment device 20 is caused to travel by a power engine such as an engine, and further, a sensor or the like is provided so that the attachment / detachment work of the fastener 3 can be performed at a place where the fastener 3 is present, that is, every PC sleeper 1. It is also possible to create a complete automation system by interlinking them with each other.

Further, there are a plurality of types of rails according to the traveling railcar, and in that case, the height of the rail and the width of the base are different. Then, naturally, the pair of left and right fasteners 3
Since the intervals between the hooks 35 are different, the mounting positions of the movable and fixed hooks 35 with respect to the lower plate 22e of the slide block 32 and the frame 22 can be appropriately changed according to the type of rail so as to accommodate this. It is convenient.

Next, a second embodiment of the present invention will be described. 11 to 13 show an attaching / detaching device 50 of the embodiment. This attaching / detaching device 50 is the attaching / detaching device 2 of the first embodiment.
The main difference from 0 is that the insertion hook 34 for attaching and detaching the clip 5 and the extraction hook 35 are integrated and there is no need to replace them, and the drive cylinders for operating these hooks 34, 35 are independent left and right. Provided,
It is that the clip 5 on one side can be attached and detached. The attachment / detachment device 50 includes a carriage 51 that can travel on the rail 2,
A fastening unit 52 detachably attached to the carriage 51 is mainly configured.

The dolly 51 has a rectangular frame shape composed of a pair of horizontal beams 53, 53 and vertical beams 54, 55 which are orthogonal to the rail 2 and are parallel to each other. One of them is arranged on the working side rail 2A side. The vertical beam 54 is longer than the other vertical beam 55 and protrudes from the end of each horizontal beam 53 by the same length. Of each cross beam 53,
The one end of the vertical beam 55 to which the vertical beam 55 is fixed and the longer one of the vertical beam 54 are provided with wheels 57a, 57b of one-flame type that roll on the rail 2 via leg portions 56 extending downward. Has been done. These wheels 57a and 57b are made of an insulating material.

That is, the carriage 51 is a four-wheel system different from the three-wheel system of the first embodiment, and the wheels 57a are mounted on one rail 2 and the wheels 57b are mounted on the other rail 2 respectively. Run over 2. In this case, each vertical beam 54, 5
Reference numeral 5 is set so as to be positioned immediately above the rail 2 with an appropriate interval. The long vertical beam 54 forming the carriage 51 is made of a rectangular tube.

The fastening unit 52 comprises a frame 60 in which a frame body 59 is connected to a vertically extending post 58, and the two drive cylinders (drive mechanisms) 61A and 61B supported by the frame body 59. There is.
The post 58 has a crank shape in a side view and has a head portion 64 and a connecting protrusion 65 extending in mutually opposite directions at the upper and lower ends of the vertically extending post body 63, and the surface of the post body 63 on the head portion 64 side, that is, the rear surface. Is formed with a guide (not shown) extending in the vertical direction, and the frame main body 59 is engaged with the frame main body 59 via a bracket 66 fixed to the upper portion on one end side thereof so as to be movable up and down along the guide.
The elevating operation is performed by an elevating cylinder (elevating mechanism) 67.

The lifting cylinder 67 is constructed by a cylinder body 67a fixed on the head portion 64 of the post 58,
The piston rod 67b penetrates the head portion 64 and moves forward and backward, and the tip of the piston rod 67b is pin-connected to the bracket 66. With such a configuration, when the piston rod 67b moves back and forth, the frame main body 59 moves up and down along the guide of the post 58. A handle 69 is attached to the upper end of the lifting cylinder 67 via a handle holder 68.

The connecting protrusions 65 of the post 58 are formed in a rectangular tube shape to be inserted into both ends of the longer vertical beam 54 of the carriage 51, and the connecting protrusions 65 are fitted into the ends of the vertical beam 54. As a result, the entire fastening unit 52 is detachably attached to one of the vertical beams 54 of the truck 51, in other words, the truck 51 and the fastening unit 52 are separated. That is, both ends of the vertical beam 54 are mounting portions 54 a of the fastening unit 52. When the connecting protrusion 65 of the post 58 is fitted into the mounting portion 54a of the vertical beam 54, the retaining pin 70 is inserted through both of them and fixed. In this case, the carriage 51 is attached to the attachment portion 54a on the side opposite to the side on which the carriage 51 is to be moved, that is, on the rear side in the direction of movement.

As shown in FIGS. 14 to 16, the frame main body 59 is of a rectangular box shape having a square opening 59a in the center thereof, and has a front plate 59c and a rear plate 59d, and the center thereof. Each have a notch 59e that opens downward, and when the frame main body 59 is lowered by the elevating cylinder 67, the working-side rail 2A is fitted into the notch 59e, and the frame main body 59 becomes the working-side rail 2a.
It will be in the state of straddling A to the left and right.

Between the front plate 59c and the rear plate 59d, a pair of first slide blocks 71 is set so as to be movable in the front-rear direction, and this movement is performed by the drive cylinders 61A, 6A.
1B respectively. These drive cylinders 6
1A and 61B have a structure in which a piston rod (movable body) 61b moves forward and backward from a cylinder body 61a.
One end of the cylinder body 61a on both side portions of the notch 59e in the front of the c are fixed, adapted to advance and retreat in the longitudinal direction the piston rod 6 1 b penetrates the front plate 59c, the piston rod 6 1 b of The tip is connected to the first slide block 71.

Inside the first slide block 71, the second slide block 72 is replaceably mounted. The second slide block 72 is
The insertion hook 34 and the extraction hook 35 in the first embodiment are integrally formed on both ends of the block base 73, that is, one second slide block 72 is used to clip the insertion hole 7 of the shoulder 4. 5 can be inserted and the clip 5 can be removed from the insertion hole 7 of the shoulder 4. At the end of the second slide block 72 on the side of the extraction hook 35, a claw-shaped clip scattering prevention protrusion 74 protruding downward is formed.

Four screw holes 76 are formed on the side surface of the second slide block 72 at intervals in the longitudinal direction. At both ends of these screw holes 76, before and after the screw holes 76 are formed on the second slide block 72. A bolt 77 passed through the pair of elongated holes 72a is screwed in. The second slide block 72 slides back and forth along the long hole 72a in a state where the bolts 77 are loosely screwed. When the second slide block 72 is slid forward or backward, the inner peripheral surface of the front end of the long hole 72a simultaneously contacts the bolt 77, and the sliding is restricted. At the restricted position, one of the two screw holes 76 in the center of the second slide block 72 is exposed to the elongated hole 72a, and the positioning bolt 78 is screwed into the exposed screw hole 72a. When the two bolts 77 and 78 are tightened, the second slide block 72 will be at that position.
Fixed to 1.

The second slide block 72 is attached to each first slide block 71 with the insertion hook 34 oriented in the direction of inserting the clip 5 and the extraction hook 35 oriented in the direction of removing the clip 5. To Then, when inserting the clip 5, the first slide block 71 is slid forward in the insertion direction to move the second slide block 71 to the second position.
When the clip 5 is attached to the slide block 72 and the clip 5 is removed, the first slide block 7
1 is slid forward in the pulling-out direction and attached to the second slide block 72.

Further, the second slide block 72 is provided with an alignment mark (not shown) at a portion visible from the opening 59a of the frame body 59. The alignment mark is on the insertion side and the alignment mark is on the extraction side.
Is run on the rail 2, and when these marks are aligned with the front arch portion 14 of the clip 5, the carriage 51 is stopped to work there. In addition, the post 58 of the frame 60
In the head portion 64 in the
An illumination lamp 80 that emits light toward 9a is attached.

In FIGS. 14 to 16, 2
The second slide block 72 (72A, 72B) of the seed is shown. This has different specifications depending on the type of rail 2
As an example, the second slide block 72
A is a 60 kg rail, and the second slide block 72B is 5
It corresponds to the 0N rail. These second slide blocks 72A and 72B are shown in FIGS. 17 and 18, respectively. The second slide block 72 is not limited to these two types of rails, and those having different sizes such as length and height depending on the type of rail are attached to the first slide block 71.

The above is the fastening unit 52 in the attachment / detachment device 50 of the second embodiment, in which the hydraulic unit 81 for operating the elevating cylinder 67 and the drive cylinders 61A, 61B is fixed on the carriage 51, and the actual operation is the handle. It is performed by the operation lever 82 attached to 69.

According to the attaching / detaching device 50 of the second embodiment having the above structure, the elevating cylinder 67 lowers the frame main body 59 with respect to the work rail 2A to cause the second slide block 72 to move.
The clip 5 is attached and detached by moving the clip 5 back and forth, and the method of use and the operation are basically the same as those of the attaching and detaching device 20 of the first embodiment.

However, according to the attaching / detaching device 50, since the insertion hook 34 for attaching / detaching the clip 5 and the extracting hook 35 are integrated to constitute the second slide block 72, as in the first embodiment. There is no need to replace the clip 5 when inserting it and when removing it. In addition, as described above, it is necessary to replace the second slide block 72 in conformity with the rail type.

Further, the drive cylinders 61A and 61B are connected to the left and right second slide blocks 72, respectively, so that not only the reaction force of one drive cylinder but also the power of the two drive cylinders 61A and 61B as in the first embodiment. Since the load is also added, the load on the drive cylinder required for attachment and detachment is reduced, and the working time is shortened. Then, especially when the clip 5 is pulled out, the clip 5 suddenly pops out from the insertion hole 7 of the shoulder 4 from the state of being pushed by a strong force, but immediately after it pops out, it is formed on the second slide block 72. It hits the clip scattering prevention projection 74 and falls below it. For this reason, the clip 5 can prevent a risk that an operator hits the clip 5 without being scattered around.

In addition, the insertion hook 34 and the withdrawal hook 35
By integrating the second slide block 72
If the protrusion 35b on the side of the pull-out hook 35 is brought into contact with the shoulder 4 and actuated to generate a reaction force, the work-side rail 2A
Either one of the left and right clips 5 can be inserted or removed.

Further, since the fastening unit 52 can be separated from the carriage 51, the apparatus itself can be transported and stored in a compact manner, and by mounting it on one of the vertical beams 54 of the carriage 51, the traveling direction of the apparatus can be arbitrarily set. Can be changed to.

In the second embodiment as well, the operation and the order of operation of the cylinders 61A, 61B, 67 can be automated by the control device, and the carriage 51 is made to travel by a power engine such as an engine. Moreover, it is also possible to make a complete automation system by repeating the stop and traveling of the trolley 51 for each work position by using a sensor or the like without the need for alignment marks, and by relating them to each other.

[0087]

As described above, according to the clip-type rail fastener attaching / detaching device of the present invention, there is provided a trolley that is supported by both rails along the rails arranged in parallel and can run on the rails. , A frame supported by the lifting mechanism so that it can be lifted and lowered to and from the rail,
A drive mechanism that is supported by this frame and that moves a movable body in the front-rear direction along a rail, and a movable body of this drive mechanism that is attached to the front arch portion of one clip so that the movable body can move. A detachable piece consisting of an insertion hook for inserting the clip or an extraction hook for withdrawing the clip according to the movement of the movable body, and a frame, which is attached to the front arch portion of the other clip so as to be engageable, An attachment hook for inserting the clip according to the movement of the movable body, or a detachable piece consisting of an extraction hook for withdrawing the clip according to the movement of the movable body, and the detachment hook after the clip is extracted. characterized in that the protrusions take the reaction force in contact with said shoulder is formed, to stop the carriage immediately above the fastener Lowers the frame by the lifting mechanism moves the movable member of the drive mechanism along the rail,
Engage each detachable piece with the front arch of each clip,
By further moving the movable body from this state, the center leg of the clip is attached to and detached from the insertion hole of the shoulder. Therefore, the labor required by the worker is greatly reduced, the work time is shortened accordingly, and the attachment / detachment work of the fastener can be performed extremely efficiently.

Further, since the detachable piece is configured to move along the inserting / removing direction of the center leg of the clip with respect to the insertion hole of the shoulder, the driving force of the drive mechanism inserts the clip into the detachable piece. It is transmitted with almost no loss as a pulling force, and the attachment / detachment operation is smoothly performed.

Further, if the frame of the fastening unit is detachably attached to the attachment portions provided at the front and rear of the truck, the fastening unit can be separated from the truck, and the transportation and storage of the device itself can be made compact. At the same time, it is possible to arbitrarily change the traveling direction of the device.

If the detachable piece has a structure in which the insertion hook and the withdrawal hook are integrated at a predetermined interval,
It is not necessary to replace the hooks one by one when inserting or pulling out, and it is possible to insert or pull out the clip on only one of the left and right sides of the rail.

In addition, in the detachable piece in which the insertion hook and the extraction hook are integrated, if the clip scattering prevention protrusion extending downward is formed at the end of the insertion hook on the moving direction side to the other side of the movable body, the extraction hook can be used. It is possible to prevent the danger that the clip that has been pulled out hits the clip scattering prevention projection and falls below it so that it does not scatter around and the worker hits it.

[Brief description of drawings]

FIG. 1 is a plan view of a first embodiment of the present invention.

FIG. 2 is a rear view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a plan view of essential parts such as a frame and a drive cylinder.

FIG. 5 is a side view of the same.

FIG. 6 is a front view of the same.

FIG. 7 is a schematic plan view showing the action of inserting a clip.

FIG. 8 is a side view of the same.

FIG. 9 is a schematic plan view showing the action of clip removal.

FIG. 10 is a side view of the same.

FIG. 11 is a plan view of a second embodiment of the present invention.

FIG. 12 is a rear view of the same.

FIG. 13 is a side view of the same.

14A is a plan view of a main part of a frame, a drive cylinder, and the like of the attachment / detachment device of the second embodiment, FIG. 14B is a view taken along the line P--P in FIG. 14A, and FIG. ) Is a Q-Q line arrow view.

FIG. 15 is a rear view of essential parts such as a frame and a drive cylinder of the attachment / detachment device of the second embodiment.

FIG. 16 is a front view of the same.

FIG. 17 is (a) a front view and (b) a side view of a second slide block having a 60 kg rail specification.

FIG. 18 is (a) a front view and (b) a side view of a second slide block having a 50N rail specification.

FIG. 19 is a perspective view illustrating a clip-type rail fastener.

FIG. 20 is a side view of the same.

FIG. 21 is a rear view of the same.

FIG. 22 is a plan view of the same.

[Explanation of symbols]

 1 PC sleeper (rail base) 2 rail 3 fastener 4 shoulder 5 clip 7 insertion hole 9 clip seat 11 center leg 12 rear arch part 13 shoulder grip part 14 front arch part 15 rail clip part 20, 50 attachment / detachment device 21, 51 truck 22, 60 Frame 28, 67 Lifting cylinder (lifting mechanism) 33, 61A, 61B Driving cylinder (driving mechanism) 33b, 61b Piston rod (movable body) 34 Inserting hook (removable piece) 35 Extracting hook (removable piece)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Juichi Sato 2-6-13-102, Takanodai, Nerima-ku, Tokyo (72) Inventor, Tatsuo Otaka 2-1-2-2 203, Konakadai, Inage-ku, Chiba-shi, Chiba (72) ) Inventor Takeshi Annaka 1-10-18 Yatsu, Ageo City, Saitama Prefecture (72) Inventor Atsushi Takano 254-4, Akashiba Nitta, Kawaguchi City, Saitama Prefecture (56) References Mitsuihei 4-134503 (JP, U)

Claims (6)

(57) [Claims] 1. An insertion hole, which is fixed as a left and right pair with a rail interposed therebetween on a rail base made of sleepers or slabs on which a rail such as a railroad rail is laid, and extends in the front-rear direction along the rail, and the insertion hole. For each shoulder having a clip seat formed on the side opposite to the rail, a straight rod-shaped center leg, a shoulder clip portion formed through a rear arch portion that bends approximately 180 degrees from one end of this center leg, and this shoulder A pair of clips having a rail clip portion formed through a front arch portion that is bent approximately 180 degrees from the clip portion, the center leg of one clip being inserted into the insertion hole of one shoulder from one end side, and the other clip Insert the center leg of each clip into the insertion hole of the other shoulder from the other end side. The clip part and the shoulder clip part press the rail and the clip seats of the shoulders against the rail base respectively to fasten the rail to the rail base. An attachment / detachment device that inserts into and removes from the insertion hole, and a truck that is supported by both rails along parallel rails and that can run on the rail, and a fastener that is fixed to this truck. The fastening unit includes a frame that is supported by the carriage so that it can be lifted and lowered by a lifting mechanism so as to move toward and away from the rail, and a drive that moves the movable body in the front-back direction along the rail that is supported by the frame. The mechanism and the movable body of this drive mechanism are attached to the front arch portion of one clip so as to be engageable with the movable body. Attached to the frame so as to be engageable with the front arch portion of the other clip, and a detachable piece comprising an insertion hook for inserting the clip according to the movement of the clip or an extraction hook for withdrawing the clip according to the movement of the movable body. An insertion hook for inserting the clip according to the movement of the movable body, or a detachable piece comprising an extraction hook for extracting the clip according to the movement of the movable body, wherein the extraction hook is used for extracting the clip. the detachable device clip-type rail fastener, characterized in that the protrusions take the contact reaction force to the shoulder is formed after. 2. The clip-type rail fastener attaching / detaching device according to claim 1, wherein the frame of the fastening unit is detachably attached to attachment portions provided at the front and rear of the carriage. 3. The insertion hook for engaging the attachment / detachment piece with the center leg side of the front arch portion of the clip, and inserting the center leg of the clip into the insertion hole of the shoulder by moving the drive mechanism to one of the movable bodies. The clip-type rail fastener attachment / detachment device according to claim 1, wherein 4. The center leg of the clip inserted into the insertion hole of the shoulder by the detachable piece engaging with the anti-center leg side of the front arch portion of the clip and moving the movable body of the drive mechanism to the other side. The clip-type rail fastener attaching / detaching device according to claim 1, which is a pull-out hook that pushes out from the insertion hole and pulls out. 5. The clip type mold according to claim 1, wherein the removable piece is formed by integrating the insertion hook according to claim 3 and the extraction hook according to claim 4 with a predetermined gap. Rail fastener attachment / detachment device. 6. The attachment / detachment piece according to claim 5, wherein a downwardly extending clip scattering prevention projection is formed at an end portion of the insertion hook on a side of a moving direction of the movable body to the other side. The attachment / detachment device for a clip-type rail fastener according to claim 5.