KR101523530B1 - Mixer truck moving vehicle for placing concrete of railroad way - Google Patents

Mixer truck moving vehicle for placing concrete of railroad way Download PDF

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Publication number
KR101523530B1
KR101523530B1 KR1020140160051A KR20140160051A KR101523530B1 KR 101523530 B1 KR101523530 B1 KR 101523530B1 KR 1020140160051 A KR1020140160051 A KR 1020140160051A KR 20140160051 A KR20140160051 A KR 20140160051A KR 101523530 B1 KR101523530 B1 KR 101523530B1
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South Korea
Prior art keywords
mixer truck
wheel
concrete
pedestal
sides
Prior art date
Application number
KR1020140160051A
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Korean (ko)
Inventor
강영기
Original Assignee
화성궤도 주식회사
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Priority to KR1020140160051A priority Critical patent/KR101523530B1/en
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Publication of KR101523530B1 publication Critical patent/KR101523530B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61J—SHIFTING OR SHUNTING OF RAIL VEHICLES
    • B61J1/00—Turntables; Traversers; Transporting rail vehicles on other rail vehicles or dollies
    • B61J1/12—Rollers or devices for shifting or transporting rail vehicles on rails

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

The present invention relates to a concrete pouring installation truck of a railroad for ballast concrete which allows a more precise placement of concrete, and a rapid progress on the concrete road construction by making the height of the chute of the mixer truck pouring concrete above the rails of the track to pour concrete. The present invention is forwardly and backwardly formed in a longitudinal direction, and comprises: a lifting support where a mixer truck raised on an upper portion on both sides of a front and rear lower portion with four drive wheel portion is provided to raise the position of the mixer truck; and an angle change plate connected via a hinge to each of the front end and the rear end of the rising base, projecting each of the front and rear of the lifting support, and each angle changed with a hinge on the center. The invention also comprises: a tilting cylinder provided to change the angle of the angle change plate between the angle change plate in the front and the front end of the lifting support, and between the front end of the lifting support and the angle change plate on the back; and an operational control unit to operate controlling of the tilting cylinder and the drive wheel portion.

Description

[0001] The present invention relates to a mixer truck truck,

The present invention relates to a mixer truck truck for laying concrete roads on a railroad, and more particularly, to a mixer truck truck for placing concrete on a concrete road by placing the height of a chute of a mixer truck that pours concrete higher than a rail of a track on which concrete is to be placed. The present invention relates to a mixer truck truck for putting concrete on a railroad vehicle so that the casting of concrete can be carried out more precisely and quickly.

Generally, the construction of railway will be carried out sequentially in various fields such as civil engineering, track construction, architecture, signal communication, and electric installation.

That is, in order to construct a railroad, a track is to be installed after a civil engineering work for dug up the ground, and the above-mentioned track laying work includes a track construction survey, a rail input and welding (lengthening), a sleeping insertion and arrangement, Rail welding (long conversation), track correction, formwork installation, final orbit correction, sleeping cover installation, concrete installation, linear inspection, and curing.

Accordingly, the present invention is an improvement of a bogie for installing a concrete road of a railway. First, a "bogie for concrete pouring when a concrete road is laid inside a tunnel" (hereinafter referred to as " Quot; a conventional concrete pouring truck ") will be described as follows.

Conventionally, a bogie for concrete pouring includes a bogie main body made to be long enough to allow the ready-mixed vehicle to be positioned on the upper surface thereof, a wheel installed on the bottom surface of the bogie main body and capable of traveling on a rail installed in the tunnel, A first rotation roller provided on the bogie main body so as to allow the tire to rotate in a state where the tire of the ready-mixed vehicle is seated, and a second rotation roller provided on the opposite side of the first rotation roller, And a power unit including a second rotary roller installed therein.

Korean Patent No. 1061688 entitled "Batch for Concrete Pouring in Concrete Piling in Tunnels" (Aug. 26, 2011)

Accordingly, the present invention is an improvement of a conventional concrete pouring truck, which is a registered patent of the present applicant,

An object of the present invention is to provide a mixer truck in which the height of a chute of a mixer truck is set so that the height of a mixer truck for placing the concrete is higher than that of a track The present invention provides a railway concrete truck plow for placing concrete on a concrete road so that the concrete can be pushed more precisely and quickly.

Another object of the present invention is to provide driving wheels which are separately driven by drive motors on both sides of a lower portion and a rear portion of an upstanding pedestal so as to improve the moving output of the truck to ensure stability of running And to adjust the rotational speed of each of the drive wheel portions during running of the upstand pedestal so as to facilitate the change of the direction of the upstand pedestal.

It is another object of the present invention to provide a railway concrete road putting mixer truck truck which is provided with a plurality of idle wheels on both sides of a lower center of an upstand pedestal so that the center of the upstand pedestal can be prevented from being damaged .

It is a further object of the present invention to provide an air conditioner in which a pair of retractable close-up fixing portions are provided on both sides of a lower rear portion of an upstanding pedestal and are brought into close contact with a ground surface or a rail surface, Which can prevent the flow of the railway concrete mixer truck.

It is another object of the present invention to provide a concrete road pavement mixer truck for railway vehicles which is provided with a direction changing wheel portion which is operated through an external operation at the front center of an upright pedestal, To provide a bogie.

It is another object of the present invention to provide an angle changing plate provided on each of the front and rear sides of an upstanding pedestal, Of concrete trucks.

In order to achieve the above object, a "mixer truck truck for laying concrete road in a railroad track" according to the present invention is formed to be long in front and rear, and a mixer truck is mounted on the upper part, An upstand provided with four drive wheels for raising the position of the truck; An angle changing plate connected to each of a front end portion and a rear end portion of the upstanding pedestal through a hinge portion and projecting respectively forward and rearward of the upstand pedestal and each having an angle changed around the hinge portion; And an angle changing plate disposed between the front end of the upstanding pedestal and the angle changing plate located forward and the angle changing plate located rearward of the upstanding pedestal and the rear side of the upstanding pedestal, A tilting cylinder for changing the angle of the tilting cylinder; And a tilting cylinder, wherein the driving wheel portion includes: a bracket on both sides protruding downward from both sides of the ascent pedestal; a wheel rotation shaft passing through the brackets on both sides; And a drive motor connected to the wheel rotation shaft by a power transmission means and installed at a lower portion of the upstanding pedestal. The wheel unit may be formed of urethane which is in close contact with the ground surface, And is made of a metal to be closely contacted.

delete

The elevating pedestal of the " mixer truck truck for putting concrete on a railway concrete road "according to the present invention comprises a plurality of idle wheels, which are closely attached to the floor or rail surface on both sides of the lower center to prevent sagging of the center of the elevating pedestal, And further comprising:

Further, since the upstand of the " mixer truck truck for laying concrete road in concrete of the railroad track "according to the present invention is provided on both sides of the lower rear of the upstand so as to be connected to the operation control unit, And two retractable fastening fixtures for preventing the flow of the upstanding pedestal at the moment of riding on the upper part of the upstanding pedestal.

Further, the above-mentioned stretchable and close fixing portion of the "mixer truck truck for putting concrete on the concrete road in the railroad track" according to the present invention comprises: a vertical pipe fixed vertically to the upstand and having an upper portion closed and a lower portion opened; And an upper portion of which is vertically inserted into the vertical tube and the insertion tube, and the upper portion is inserted into the upper portion of the vertical tube And an extension / contraction hydraulic cylinder fixed at a lower portion of the insert-up steel pipe and connected to the operation control unit.

The elevating pedestal of the " mixer truck truck for putting concrete on the concrete road of railway "according to the present invention is provided with the elevation pedestal which is provided at the center of the front side of the elevating pedestal and connected to the operation control part, , And a part of the image.

Further, the direction changing wheel portion of the " mixer truck truck for laying concrete road in concrete of the present invention "according to the present invention includes a hydraulic motor connected to the operation control portion through a rotation shaft protruding downward at the center of the front of the upstand, And a wheel which is mounted on a rotary shaft of the hydraulic motor and whose traveling direction is changed by normal and reverse rotation of the hydraulic motor.

Further, the angle changing plate of the "mixer truck truck for putting concrete on the railway concrete road" according to the present invention is characterized in that the angle changing plate of both sides of the wheel closing plate is connected to the end of the rising base through the hinge, And one or more connecting rods which are provided in the lateral direction and connect the wheel close plates of both sides and the ends of the tilting cylinders are hinged to each other.

As described above, according to the present invention, since the height of the chute of the mixer truck for pouring concrete is higher than the rail of the track to which the concrete is to be poured, the placement of the concrete for the construction of the concrete road can be more precisely and quickly So that it is possible to shorten the air while preventing poor construction on the concrete road.

In addition, since the present invention includes the driving wheels that are separately driven on both sides of the lower portion and the rear portion of the upstand, there is an effect that stability of running can be secured by improving the moving output of the truck. There is also an effect that it is possible to easily change the direction of the upstanding pedestal by adjusting the rotational speeds of the respective driving wheel portions during traveling.

The present invention also provides an effect of providing a mixer truck carriage secured with safety by preventing a damage to the lower portion of the upstanding pedestal by providing a plurality of idle wheels on both sides of the lower center of the upstand pedestal have.

In addition, the present invention further includes two stretchable close-up fixing portions that are closely attached to the ground or the rail surface on both sides of the lower rear of the upstand, so that when the mixer truck rides on the upper portion of the upstand, , There is an effect that the mixer truck can ride on the upper part of the truck more safely.

In addition, the present invention provides a direction changing wheel portion that is operated through an external operation at the front center of the upstand, thereby further facilitating the change of the direction of the upstand.

In addition, the present invention is configured such that the angle changing plates provided on the front and rear sides of the lift plate are connected to the wheel close plates on both sides thereof, thereby reducing the manufacturing cost of the ladle by saving material in manufacturing the angle changing plate There is also an effect.

Figure 1 shows a mixer truck carriage according to the present invention,
1A is a perspective view,
1B is a left side view,
1C is a plan view seen from A of FIG.
2 is a cross-sectional view taken along line BB of Fig.
3 is a cross-sectional view taken along the line CC of Fig.
4 is a cross-sectional view taken along line DD of Fig.
5 is a sectional view taken along the line EE of Fig.
6 is a cross-sectional view taken along line FF of Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a perspective view of a mixer truck according to the present invention. FIG. 1B is a left side view, and FIG. 1C is a plan view of FIG. 2 is a cross-sectional view taken along the line BB in Fig. 1, Fig. 3 is a sectional view taken along the line CC in Fig. 2, Fig. 4 is a cross- 1A. Fig.

As shown in the drawings, the mixer truck truck according to the present invention increases the height of a mixer truck that pours concrete roads of a railway, thereby making it possible to more precisely and quickly place the concrete for constructing concrete roads will be. The mixer truck truck according to the present invention may travel along the ground surface of the track rail on which the concrete road is installed or on another pair of rail surfaces provided on the side of the track rail on which the concrete road is installed .

Therefore, the mixer truck carriage according to the present invention includes an upstand (1) moving along the ground surface or another pair of rail surfaces, an angle changing plate (2) provided at the front and rear of the upstand (1) A tilting cylinder 3 for changing the angle of the angle changing plate 2 of the tilting cylinder 2, and an operation control unit (not shown).

As shown in FIGS. 1 to 5, the upstanding pedestal 1 constituting the present invention is formed in a long plate shape in front and rear, so that the mixer truck is mounted on the upper part. In addition, four drive wheels 11 are provided on both sides of the lower portion of the upstanding pedestal 1 on the front and rear sides, thereby elevating the position of the mixer truck. Therefore, according to the present invention, the height of the chute S of the mixer truck that pours concrete through the plurality of driving wheel portions 11 is positioned higher than the rail of the track to which the concrete is to be poured, It is possible to carry out concrete pouring more precisely and quickly.

The driving wheel part 11 includes brackets 111 on both sides protruding downward from both sides of the upstanding pedestal 1 so as to improve the moving output of the truck and facilitate the change of the direction of the upstanding pedestal 1, A wheel rotating shaft 112 penetrating through the brackets 111 on both sides of the rotating shaft 112 and a wheel 113 inserted into the outer circumferential edge of the wheel rotating shaft 112 and the wheel rotating shaft 112 and the power transmitting means 115 And a driving motor 114 connected to the lower portion of the upstanding pedestal 1. The wheel part 113 may be made of urethane which is in close contact with the ground surface so as to be in close contact with the ground surface and may be made of a metal which is in close contact with the rail surface so as to be able to ride on the rail surface. Shows a state of being made of urethane and being in close contact with the paper surface,

On both sides of the lower center of the ascent pedestal 1, there are further provided a plurality of idle wheel portions 14 which come into close contact with the ground surface or the rail surface so that the center of the ascent pedestal 1 can be prevented from being damaged . The idle wheel 14 includes an idle wheel 141. The idle wheel 141 may be made of urethane which is in close contact with the ground so as to be brought into close contact with the ground, It may be made of a metal adhered to the rail surface so that it is made of urethane in the attached drawing,

As shown in FIGS. 1 and 4, both sides of the lower portion of the up-down pedestal 1 constituting the present invention are provided to be connected to the operation control portion so that the lower portion can be closely attached to the ground, It is also possible to further include two retractable fasteners 12 for preventing the flow of the upstanding pedestal 1 at the moment of riding on the upper part of the upstanding pedestal 1.

The expansion and contraction fixing unit 12 is fixed vertically to the upstanding pedestal 1 so that the flow of the upset pedestal 1 can be further prevented at the moment when the mixer truck rides on the upper part of the upstanding pedestal 1 (122) which is inserted into the vertical tube (121) so as to be protruded downward and which is brought into close contact with the ground, and a lower portion And an upper portion of the upper portion is fixed to an upper portion of the vertical tube 121 and a lower portion of the lower portion is inserted into the insertion tube 122 And a retractable hydraulic cylinder 123 fixed to the lower portion of the control shaft and connected to the operation control unit.

Therefore, the present invention is characterized in that the lifting pedestal 1 is provided with the two retractable fastening portions 12 so that the flow of the lifting pedestal 1 can be maintained at a moment when the mixer truck rides on the upper portion of the lifting pedestal 1 This also has the advantage of allowing the mixer truck to ride on top of the truck more safely.

As shown in FIGS. 1 and 5, the lifting pedestal 1 of the present invention is provided at the center of the front of the lifting pedestal 1 and is connected to the operation control unit, And a direction changing wheel unit 13 for changing the direction of the vehicle.

The direction changing wheel portion 13 is fixedly inserted into the center of the front side of the upstanding pedestal 1 so as to protrude downward so that the direction of the upstanding pedestal 1 can be more easily changed, And a wheel 132 which is mounted on a rotary shaft of the hydraulic motor 131 and whose traveling direction is changed through normal and reverse rotation of the hydraulic motor 131. [

1 and 6, the angle changing plate 2 constituting the present invention is connected to each of the front end portion and the rear end portion of the upstanding pedestal 1 through the hinge portion 23 And each of the angle changing plates 2 is provided so as to be angularly changed around the hinge portion 23. The angle changing plate 2 may be formed of a metal plate,

The angle changing plate 2 includes both side wheel closing plates 122a connected to ends of the rising base through the hinge 23 so as to save material when the angle changing plate 2 is manufactured, It is preferable that the tilting cylinder 3 is constituted by one or more connecting rods 22 which are provided laterally between the wheel close plates 122a on both sides and connect the wheel close plates 122a on both sides and the ends of the tilting cylinders 3 are hinged Do. Therefore, according to the present invention, since the upstanding pedestal 1 is composed of the two angle changing plates 2 and the central connecting link 22, the manufacturing cost of the angle changing plate 2 can be reduced by manufacturing materials, It also has the advantage of being able to.

On the other hand, the tilting cylinder 3 for changing the angle of the angle changing plate 2 is disposed between the front end of the upstanding pedestal 1 and the angle changing plate 2 located in front of the upstanding pedestal 1, And the angle changing plate 2 located at the rear side, respectively, so as to change the angle of each angle changing plate 2. That is, each of the tilting cylinders 3 is most preferably hinged to the end of the upstanding pedestal 1 and the link 22 so that the angle of the tilting cylinder 3 can be changed during operation. Each of the tilting cylinders 3 is connected to the operation control unit and operated through an external operation.

Hereinafter, the construction of the concrete railway on the track rail using the mixer truck truck according to the present invention will be described.

As shown in FIGS. 1 to 6, when the concrete track is installed on the track rail using the mixer truck truck according to the present invention, first, The fixing portion 12 is operated so that the position of the lower portion of the insertion up-going pipe 122 is brought into close contact with the surface of the adhering plate 122a so as to temporarily fix the upsetting pedestal 1 to the ground. When the tightening plate 122a is fixed temporarily to the ground, the wheel portions 113 on both rear sides of the upstanding pedestal 1 are fixed to the ground so that the upstanding pedestal 1 can be more firmly fixed to the ground. It is most preferable to raise it away from the ground.

The rear tilting cylinder 3 is stretched and operated so that the rear of the angle changing plate 2 positioned at the back of the upstanding pedestal 1 is brought into close contact with the ground. Then, the mixer truck is placed on the upper part of the upstand 1 through the process of moving the angle changing plate 2. Then, the expansion and contraction fixing unit 12 is operated again to raise the insertion-up steel pipe 122 to separate the tightening plate 122a from the ground, and the tilting cylinder 3 located at the rear is operated to extend, So that the angle changing plate 2 of the first embodiment is maintained in a horizontal state.

Next, the drive wheel portions 11 are operated to move the upstanding pedestal 1 to the side of the concrete construction site, or to the upper portion of the pair of installed rails.

Place the chute (S) of the next mixer truck in the position where the concrete road is to be installed. Then, the driving wheel portions 11 are operated and the mixer truck is operated to move the ascent pedestal 1, and the concrete is poured into the portion where the concrete road is installed.

When the next concrete is poured, the elevating pedestal 1 is placed on the ground again, and then the telescopic tight fitting portion 12 provided on both sides of the lower rear portion of the elevating pedestal 1 is operated, 122 are brought into close contact with the ground surface of the tightening plate 122a and the front tilting cylinder 3 is operated to tilt the front angle changing plate 2. Finally, a single concrete pouring operation by the mixer truck is completed through a process of lowering the mixer truck from the upper part of the upstand 1 to the ground.

Therefore, according to the present invention, since the plurality of driving wheel portions 11 are provided at the lower portion of the upstanding pedestal 1, the height of the chute S of the mixer truck for pouring concrete is higher than the rails of the track It can be positioned.

Therefore, according to the present invention, since the height of the chute S of the mixer truck is positioned higher than the rail of the track on which the concrete is to be placed, the concrete is more precisely and quickly put in place for the construction of the concrete road, This is a useful invention that can shorten the air while preventing the failure in construction on the air.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

1: Ascent Stand
11: drive wheel section
111: bracket, 112: wheel rotating shaft, 113: wheel portion,
114: drive motor, 115: power transmission means
12: Expansion /
121: Vertical tube, 122: Insertion tube, 122a: Clamp plate,
123: Extension hydraulic cylinder
13: Direction changing wheel section
131: Hydraulic motor, 132: Direction changing wheel
14: idle wheel part
141: Wheels
2: Angle changing plate
21: wheel close plate
22: Links
23: Hinge section
3: Tilting cylinder
S: Suit

Claims (8)

An upstanding pedestal 1 formed with a long front and rear side and a mixer truck mounted on an upper side and four driving wheels 11 for raising the position of the mixer truck on the front and rear sides of the lower portion; Each of the front and rear ends of the upstanding pedestal 1 is connected to a front end and a rear end of the upstanding pedestal 1 via a hinge portion 23 and protrudes forward and rearward of the upstanding pedestal 1, An angle changing plate (2) provided so as to be changed; An angle changing plate (2) located between the front end of the upstanding pedestal (1) and the angle changing plate (2) positioned in front and the rear end of the upstanding pedestal (1) A tilting cylinder (3) provided so as to be changeable and changing the angle of each angle changing plate (2); And an operation control unit for operating and controlling the driving wheel portions 11 and the tilting cylinder 3,
The driving wheel portion 11 includes brackets 111 on both sides protruding downward from both sides of the upstanding pedestal 1, a wheel rotating shaft 112 passing through the brackets 111 on both sides, And a driving motor 114 connected to the wheel rotating shaft 112 by the power transmitting means 115 and installed at a lower portion of the upstanding pedestal 1, and,
Wherein the wheel part (113) is made of urethane which is in close contact with the ground surface or is made of a metal closely attached to the rail surface.
The method according to claim 1,
The upstand (1)
A plurality of idle wheel portions 113, which are closely attached to the floor or the rail surface on both sides of the lower center to prevent sagging of the center of the upstand 1,
Further comprising: a mixer truck truck mounted on the railway concrete road.
3. The method according to claim 1 or 2,
The upstand (1)
The lower part of the upstanding pedestal 1 is connected to the operation control part on both sides of the lower part of the lower part of the upstanding pedestal 1 so that the lower part can be brought into close contact with the ground surface, Two tight fit fixing portions 12,
Further comprising: a mixer truck truck mounted on the railway concrete road.
The method of claim 3,
The expansion and contraction type fixing portion (12)
A vertical tube 121 vertically fixed to the upstanding pedestal 1 and having an upper portion closed and a lower portion opened,
An insertion pipe 122 having an upper part opened and a lower part 122 inserted into the vertical pipe 121 so as to be protruded downward and closely adhered to the ground,
The upper portion is fixed to the upper portion of the vertical tube 121 and the lower portion is fixed to the lower portion of the insertion tube 122, A hydraulic cylinder 123,
And a mixer truck for loading a concrete road in a railroad track.
3. The method according to claim 1 or 2,
The upstand (1)
A direction changing wheel portion 13 provided at the center of the front of the upstanding pedestal 1 so as to be connected to the operation control portion and changing its direction through an external operation,
Further comprising: a mixer truck truck mounted on the railway concrete road.
6. The method of claim 5,
The direction changing wheel section (13)
A hydraulic motor 131 connected to the operation control unit through a rotation shaft protruding downward from the center of the upstanding pedestal 1,
A wheel 132 mounted on the rotary shaft of the hydraulic motor 131 and changing its traveling direction through normal and reverse rotation of the hydraulic motor 131,
And a mixer truck for loading a concrete road in a railroad track.
The method according to claim 1,
The angle changing plate (2)
A wheel close plate 122a connected to an end of the lifting base through the hinge portion 23,
One or more connecting rods 22 which are provided in the lateral direction between the wheel contact plates 122a on both sides and connect the tightening plates 122a of the wheels 141 on both sides and the ends of the tilting cylinders 3 are hinged,
And a mixer truck for loading a concrete road in a railroad track. delete
KR1020140160051A 2014-11-17 2014-11-17 Mixer truck moving vehicle for placing concrete of railroad way KR101523530B1 (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019018618A (en) * 2017-07-12 2019-02-07 日本車輌製造株式会社 Truck

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH082409A (en) * 1994-06-20 1996-01-09 Masaya Nagashima Truck traveling on track for conveying vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH082409A (en) * 1994-06-20 1996-01-09 Masaya Nagashima Truck traveling on track for conveying vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019018618A (en) * 2017-07-12 2019-02-07 日本車輌製造株式会社 Truck

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