JPH08260405A - Dog-spike puller - Google Patents

Abstract

PURPOSE: To conduct the pulling operation of a dog-spike safely and easily, and to improve operating efficiency while enabling continuous operation. CONSTITUTION: Support bases 16 are installed on both sides in the progressive direction to a truck 14 with a brake equipment 15, and a generator 13 is placed. Displacement means 30 holding dog-spike pullers 20 rotatably in a vertically displaceable manner are mounted on the support bases 16. The displaceable means 30 are constituted while having cylindrical base end sections 31, 31 detachably inserted to the support bases 16 respectively, connecting arms 32 set up to the cylindrical base end sections 31 in a rockable manner and mutually interlocked in parallel in the vertical direction, grippers 33 being fitted at the front ends of the connecting arms 32 and detachably gripping the dog-spike pullers 20 vertically, and balance springs 34, 34 being stretched among the connecting members 32C, 32C of the connecting arms 32 and the cylindrical base end sections 31 and holding the dog-spike pullers 20 in desired height.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dog nail extracting device for extracting dog nails driven into sleepers on an existing track.

[0002]

2. Description of the Related Art Conventionally, when pulling out dog nails that have been driven into sleepers on an existing track, a dog nail pulling bar was used to pull them out manually, but in recent years, mechanical dog nail pullers have been used. The conventional dog nail puller 2 is, as shown in FIG.
Electric impact wrench body 3 and pull-out part connected to the impact wrench body 3 (Spy Kipula)
4, the impact wrench body 3 is formed with handles 5A and 5B extending horizontally outward. One handle 5A is provided with an operation switch for operating the drive of the impact wrench. The impact wrench body 3
It is connected to a generator (not shown) as a drive source.

When the dog nail remover 2 is used, an operator carries the dog nail remover 2 to a predetermined work place, holds handles 5A, 5B of the dog nail remover 2 and holds it vertically on the dog nail to be extracted. . Then, the operation switch is used to lower the tip hook of the pull-out portion 4 and fit it into the dog nail head. next,
When the handles 5A and 5B are firmly gripped and the operation switch is operated, the pull-out portion 4 pulls out the dog nail. Although the conventional dog nail puller 2 is driven by a generator, a hydraulic dog nail puller used in connection with a hydraulic unit is also known.

[0004]

By the way, the conventional dog nail remover 2 has a main body weight of about 20 kg, and is divided into a generator as a drive source and a hydraulic unit for transportation during work. On the other hand, a generator weighs about 80 kg, and a hydraulic unit weighs about 40 kg. At the time of work, several heavy operators or human beings put these heavy generators or hydraulic units on a track truck. I try to work while moving. However, with the dog nailer 2, since the worker carries out the work while transporting or moving it to the work place, the burden on the worker and the degree of fatigue increase, and it is difficult to perform the work continuously, and the workability is reduced. There was a problem that was bad. Further, since a heavy object such as the dog nail remover 2 is manually held and operated, there is a problem in terms of safety.

The present invention has been made in order to eliminate the above-mentioned drawbacks. It makes the extraction of dog nails safe and easy regardless of the condition of the track, reduces the fatigue of the operator, and improves the efficiency of the operation. (EN) Provided is a dog nail extracting device capable of continuously performing work.

[0006]

SUMMARY OF THE INVENTION A dog nail extracting device according to the present invention is a bogie having wheels traveling on a track, a drive source mounted on the bogie, braking means for stopping the bogie, and the bogie. Support means provided on both sides in the direction of travel of the dog nailer, which is driven by being connected to the drive source, and which is rotatably attached to the support means and holds the dog nailer so as to be vertically displaceable. And a displacing means for performing the displacing.

[0007]

In the dog nail extracting device according to the above-mentioned invention, the drive source and the dog nail removing device can be easily moved to a desired work place by traveling on the track together with the carriage. Moreover,
Since the dog nail puller can be held at a desired position by the displacement means, the operator can easily position the dog nail puller on the dog nail to be pulled out without burdening the weight, and work can be performed continuously. It can be carried out. Moreover, since the dog nail remover can be arranged on both sides of the dolly, work can be performed at two locations at the same time, and the extraction work can be made efficient. Further, since the vehicle can be stopped by the brake means to perform the work, the work can be performed safely even on a track having a slope.

[0008]

The present invention will be described below with reference to the illustrated embodiments.
1 is a side view showing a dog nail extracting device according to an embodiment of the present invention, and FIG. 2 is a front view showing the dog nail extracting device of FIG.
3 is a plan view showing the dog nail extracting device of FIG. 1, and FIG. 4 is a plan view showing a modified example of the dog nail extracting device using a hydraulic unit as a drive source. The dog nail extraction device 10
As shown in FIG. 1, a trolley 14 having wheels 12 traveling on a track 11, a generator (driving source) 13 detachably mounted on the trolley 14, and a brake device (brake means) for stopping the trolley 14. ) 15 and a pair of support bases (support means) 16 provided on both sides of the carriage 14 in the traveling direction,
17, a dog nail remover 20 which is electrically connected to and driven by the generator 13, and a displacement means which is rotatably attached to the supporting bases 16 and 17 and holds the dog nail remover 20 so as to be vertically displaceable. And 30.

The brake device 15 comprises a brake operating lever 18 provided on a support column 19 and a braking mechanism (not shown). In the brake device 15, the brake operating lever 18 is constantly urged upward to be held in a braking state, and when the brake operating lever 18 is pushed down,
Braking is designed to be released.

As shown in FIG. 1, the displacing means 30 has cylindrical base end portions 31 and 31 which are removably fitted into the support bases 16 and 17, respectively, and one end thereof swings to the cylindrical base end portion 31. A connecting arm 32 that is attached to the connecting member 32C at the other end and is connected to the connecting member 32C at the other end and is vertically parallel to each other and is vertically interlocked with each other. Gripping tool 3
3 and the connecting members 32C, 32C of the connecting arm 32, and a spring support 35 provided on the upper portion of the tubular base end 31 are stretched between the upper and lower ends of the tubular base end 31 to hold the dog nail remover 20 at a desired height. The dog nail puller 20 is configured to include the springs 34, 34, and bears the weight of the dog nail puller 20 and can position the dog nail puller 20 around the support bases 16, 17 within a predetermined range.

The tubular base end portion 31 is rotatably fitted into a shaft portion formed on the upper ends of the support bases 16 and 17. As shown in FIG. 3, the coupling arm 32 is provided with a pair of upper and lower arms 32A and 32B facing each other on the outer surface of the tubular base end portion 31. Both upper arms 32A, 32A between the tips and both lower arms 32
Connection shafts 37 and 38 are mounted between the tips of B and 32B, respectively. At the left and right ends of the upper and lower connecting shafts 37, 38,
The connecting members 32C and 32C are fitted and inserted, and the upper and lower arms 32A and 32B are swingably connected to each other. The upper arm 32A and the lower arm 32B, which form a pair in the vertical direction, are connected to each other by the pin 36 provided at different positions in the vertical direction.
While holding C and 32C in a vertical state, they swing vertically in parallel with each other. The grip 33 is shown in FIG.
As shown in FIG. 2 (the balance spring 34 is omitted in FIG. 2), the upper and lower clamps 33A and 33B are provided.
The clamps 33A and 33B are bolts, and the dog nail remover 2 is used.
The dog nail puller 20 is always held in the vertical state even when the connecting arm 32 is swung up and down. The balance springs 34, 34 are dog nail pullers 2
When 0 is attached to the clamps 33A and 33B, the weight of the dog nail puller 20 is borne and the descent due to its own weight is suppressed to hold it at a desired height. That is, when the operator moves the dog nail remover 20 up and down to stop it, the dog nail remover 20 is held at the stop position.

The dog nail remover 20 is a commonly used electric dog nail remover, and as shown in FIG. 2, an impact wrench main body 43 and a withdrawal portion (spiky puller) 44 connected to the impact wrench main body 43. Composed of. The impact wrench body 43 is provided with a handle 45B that extends horizontally to the outside. Impact wrench body 4
An operation switch 47 for operating the drive is provided on the grip portion 46 of 3.
Is provided. Reference numeral 45A is a derailing handle attached to the carriage 14, which is used for carrying the carriage and prevents things from being caught in the wheels 12.

Next, the operation of the dog nail extracting device having the above structure will be described. First, the dog nail extraction device 10
The generator 13 is mounted on the truck 14 placed on the track 11,
A cylindrical base end portion 31 is attached to each of the support bases 16 and 17 of the carriage 14.
Is attached, and the dog nail remover 20 is attached to the clamps 33A and 33B for assembly. At this time, the brake device 1
Since 5 is in a braking state, the carriage 14 does not move and can be safely assembled. Next, the brake device 15
The brake operating lever 18 is pushed downward to release the braking, and the carriage 14 is moved to the work place. At this time,
Since the generator 13 and the dog nail remover 20 are moved together with the dolly 14, they can be easily moved to a desired work place.

At the time of work, first, the carriage 14 is moved to a position near the dog nail to be pulled out and stopped, and the brake operating lever 18 is returned upward to hold the carriage 14 in a braking state. Next, the dog nail puller 20 is rotated around the support bases 16 and 17 and is also displaced in the vertical direction to position it on the dog nail to be pulled out. At this time, the dog nail remover 20
Since it is supported by the balance springs 34, 34, positioning can be performed with a slight force. Moreover, since the dog nail remover 20 is held at the desired position in the vertical direction by the balance spring 34, it can be easily positioned. Further, even if there is a deviation in the traveling direction, positioning can be performed by operating the brake device 15 and slightly moving the carriage 14. Therefore, the degree of fatigue of the worker can be reduced, and the work can be continuously performed. Furthermore, since the dog nail remover 20 can be arranged on both sides of the dolly 14, work can be performed in two places at the same time, and the extraction work is made efficient. Further, since the brake device 15 is constantly in a braking state, even when working on a track having a slope, the carriage 14 does not start unless the brake operating lever 18 is pushed,
You can work safely.

FIG. 4 shows an example in which the drive source is changed to a generator and the hydraulic unit 50 is used. In this modification, the brake device 15, the supports 16, 17 and the displacing means 30 are configured in the same manner as in the above embodiment, and the dog nail puller is of a hydraulic type. Further, in the above-described embodiment, the connecting arm 32 is formed as a pair of upper and lower arms 32A and 32B.
2 sets of connecting members 32C, 32C and connecting shafts 37, 3
However, the present invention is not limited to this, and may be composed of only a pair of upper and lower arms connected by one connecting member.

[0016]

As described above, according to the present invention, a trolley having wheels traveling on a track, a drive source mounted on the trolley, a braking means for stopping the trolley, and a movement of the trolley. Supporting means provided on both sides in the direction, a dog nail remover driven by being connected to the drive source, and a displacement rotatably attached to the supporting means and holding the dog nail remover vertically displaceable. Since the worker is provided with the means, the worker can easily position the dog nail remover without burdening the weight, and the work can be continuously performed to improve the work efficiency. In addition, the work can be performed safely regardless of the track conditions.

[Brief description of drawings]

FIG. 1 is a side view showing a dog nail extracting device according to an embodiment of the present invention.

2 is a front view showing the dog nail extracting device of FIG. 1. FIG.

3 is a plan view showing the dog nail extracting device of FIG. 1. FIG.

FIG. 4 is a plan view showing a dog nail extracting device according to a modification of the present invention.

FIG. 5 is an explanatory view showing a usage state of a conventional dog nail puller.

[Explanation of symbols]

 11 orbit 12 wheels 13 generator (driving source) 14 truck 15 braking device (brake means) 16, 17 support base (support means) 20 dog nailer 30 displacement means

Claims (6)

[Claims] 1. A bogie having wheels running on a track,
A drive source mounted on this truck, a braking means for stopping the truck, support means provided on both sides of the truck in the traveling direction, a dog nail remover driven by being connected to the drive source, and the support And a displacing means for holding the above-mentioned dog nail puller displaceably in the vertical direction. 2. A bogie having wheels that travel on a track,
A drive source mounted on this trolley, a brake device for stopping the trolley, a pair of support stands erected on both sides in the traveling direction of the trolley, and a dog nail remover driven by being connected to the drive source. , A cylindrical base end rotatably fitted in the support base, and a parallel one end of which is swingably attached to the cylindrical base end and the other end of which is connected to a connecting member to interlock with each other in the vertical direction. A connecting arm composed of upper and lower arms, a gripping tool which is provided at the tip of the connecting arm and which detachably holds the dog nail remover, and a tension between the tip side of the connecting arm and the tubular base end. A dog nail extracting device, which is provided with a balance spring which is mounted on the dog nail removing device and holds the dog nail removing device at a desired height. 3. The connecting arm comprises a pair of upper and lower arms attached to the outer surface of the tubular base end portion so as to face each other, and a connecting shaft is mounted between the upper arm tips and the lower arm tips. The dog nail extracting device according to claim 2, wherein the connecting members are inserted into the upper and lower connecting shafts. 4. The braking device comprises an operating lever provided on the side of the dog nailer of the dolly, and a braking mechanism that is always kept in a braking state and that releases braking only when the operating lever is operated. The dog nail extraction device according to claim 2, 5. The dog nail remover comprises a drive unit provided in the main body, a pull-out unit connected to the drive unit for pulling out the dog nail, and an operation switch for turning on / off the power of the drive unit.
The dog nail extracting device according to claim 2, further comprising a handle extending horizontally from the main body. 6. The drive source is composed of either a hydraulic unit or a generator, and the dog nail puller is of a plurality of types selectable according to the drive source. The dog nail extraction device described.