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WO2016009515A1 - Dispositif destiné à étaler et mettre à niveau du matériau de revêtement et procédé d'étalement et de mise à niveau de matériau de revêtement - Google Patents

Dispositif destiné à étaler et mettre à niveau du matériau de revêtement et procédé d'étalement et de mise à niveau de matériau de revêtement Download PDF

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Publication number
WO2016009515A1
WO2016009515A1 PCT/JP2014/068958 JP2014068958W WO2016009515A1 WO 2016009515 A1 WO2016009515 A1 WO 2016009515A1 JP 2014068958 W JP2014068958 W JP 2014068958W WO 2016009515 A1 WO2016009515 A1 WO 2016009515A1
Authority
WO
WIPO (PCT)
Prior art keywords
screed
paving material
tamper
spreader
pavement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2014/068958
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English (en)
Japanese (ja)
Inventor
雅嘉 藤谷
昌平 佐々木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippo Corp
Original Assignee
Nippo Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippo Corp filed Critical Nippo Corp
Priority to PCT/JP2014/068958 priority Critical patent/WO2016009515A1/fr
Priority to JP2016534034A priority patent/JP6387096B2/ja
Publication of WO2016009515A1 publication Critical patent/WO2016009515A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ

Definitions

  • the present invention relates to a paving material leveling apparatus and a paving material leveling method.
  • a road surface with a special shape having irregularities in the transverse direction and longitudinal direction of the road may be formed. Therefore, as described in Japanese Patent Application Laid-Open No. 11-269816 (Patent Document 1), the screed extending in the vehicle width direction of the self-propelled tractor is divided into a plurality of parts, and the divided parts are shifted in the vertical direction. Thus, a paving material leveling device that can form a road surface with a special shape has been proposed.
  • this invention aims at providing the leveling device of the paving material which can deform
  • the paving material leveling device was spread by the spreader that receives the paving material, the feeder that transports the paving material of the hopper onto the roadbed, the spreader that spreads the paving material conveyed by the feeder to the left and right, and the spreader.
  • the screed includes a plurality of screed plates that are relatively rotatable and arranged in series, an end of the left and right screed plates, and an actuator that shifts the connecting part of the screed plates vertically.
  • the both end faces of the screed plate have a shape that gradually decreases as it goes upward and downward, with the middle point in the vertical direction as a vertex.
  • the paving material leveling device deforms the shape of the lower surface of the screed by the actuator, and spreads the paving material spread by the spreader with the screed to form a specially shaped road surface.
  • the screed can be smoothly deformed in accordance with a specially shaped road surface.
  • FIG. 1 and 2 show an example of an asphalt finisher (asphalt paver) 100.
  • the asphalt finisher 100 is an example of a paving material leveling device.
  • the asphalt finisher 100 is a construction machine for paving roads and the like.
  • the asphalt finisher 100 includes a self-propelled tractor 200 equipped with a prime mover and a traveling device, a hopper 300 that receives the asphalt mixture, a bar feeder 400 that conveys the asphalt mixture onto the rear roadbed, and an asphalt mixture. It has a screw spreader 500 that spreads left and right, and a screed 600 that spreads and leveles asphalt mixture.
  • asphalt mixture is an example of paving material.
  • the bar feeder 400 and the screw spreader 500 are examples of the feeder and the spreader, respectively.
  • the tractor 200 drives a hydraulic pump with a prime mover such as a diesel engine and drives a traveling motor with hydraulic oil supplied from the hydraulic pump to self-run.
  • the traveling device of the tractor 200 is not limited to a wheel type that travels with a rubber tire as shown in FIG. 1, and may be a crawler type that travels with a crawler track, for example.
  • the hopper 300 has a substantially box shape with an upper surface and a front surface opened.
  • the hopper 300 is attached to the front portion of the tractor 200 so as to receive asphalt mixture from a dump truck approaching from the front.
  • a gate (not shown) for discharging the asphalt composite material received from a dump truck or the like to the rear is formed at the lower part of the rear surface of the hopper 300.
  • the left and right inner side surfaces (inner walls) of the hopper 300 may be inclined surfaces in which, for example, the distance between the two opposing surfaces becomes narrower toward the lower side in order to collect asphalt mixture.
  • the bar feeder 400 is a conveying device in which a conveyor bar is attached to a chain laid between a driving sprocket and a driven sprocket at equal intervals.
  • the asphalt composite material is driven by rotating the driving sprocket with a hydraulic motor.
  • the bar feeder 400 is attached to the tractor 200 so that the asphalt mixture of the hopper 300 can be conveyed from the gate to the rear of the tractor 200.
  • a two-row bar feeder 400 extending in parallel in the front-rear direction is attached to the tractor 200, but a single-row bar feeder 400 may be used.
  • the screw spreader 500 is a conveying device in which a screw is erected on the outer peripheral surface of a rotating shaft, and includes a gear box 510 attached to the center of the rear portion of the tractor 200, and bearings 520 attached to both ends of the rear portion of the tractor 200. , And is rotatably supported.
  • the screw spreader 500 is rotationally driven by a hydraulic motor or the like through the gear box 510, and spreads the asphalt mixture conveyed on the roadbed by the bar feeder 400 to the left and right.
  • the rotation direction of the screw is reversed on the left and right so that the asphalt mixture can be spread left and right by rotation in the same direction.
  • extension screws can be detachably attached to both ends of the screw spreader 500.
  • the screw spreader 500 can be moved up and down with respect to the tractor 200 by an actuator such as a hydraulic cylinder, for example.
  • the screed 600 is a device that spreads the asphalt mixture spread left and right by the screw spreader 500 to a predetermined thickness, and is disposed behind the screw spreader 500. That is, a pair of left and right leveling arms 620 that can swing around an axis extending in the left-right direction of the tractor 200 by an actuator 610 such as a hydraulic cylinder is attached to both side surfaces of the tractor 200. A frame 630 is fixed to the rear end of the leveling arm 620 and extends to the left and right beyond the vehicle width of the tractor 200.
  • a plurality of actuators 640 including, for example, a servo motor, a speed reducer, and a screw jack are attached to the frame 630 at predetermined intervals in the left-right direction.
  • a connecting portion of a plurality of screed frames 650 connected in series so as to extend in the left-right direction, or the end portion of the screed frame 650 located on the outermost left and right sides. It is fixed.
  • the adjacent screed frames 650 are coupled so as to be relatively rotatable about an axis extending in the front-rear direction.
  • Adjacent screed frames 650 are arranged at a predetermined interval so that members do not interfere with each other even if they are relatively rotated.
  • each screed frame 650 a screed plate 660 having at least a flat bottom surface is fixed in order to spread and level the asphalt mixture. Unlike the screed frame 650, the adjacent screed plates 660 are in contact with each other in order to spread asphalt mixture as evenly as possible.
  • the lower surface of the screed 600 composed of a plurality of screed plates 660 can be deformed into an arbitrary shape as shown in FIG. For this reason, if the lower surface of the screed 600 is sequentially deformed in conjunction with the running of the asphalt finisher 100, for example, a specially shaped road surface having irregularities in the transverse direction and the longitudinal direction of the road can be formed.
  • the screed 600 includes a plurality of screed plates 660 that are relatively rotatable and arranged in series, an outer end portion of the left and right screed plates 660, and a connecting portion of the screed plate 660 in the vertical direction. And an actuator 640 to be shifted.
  • the left and right ends (both end faces) of the screed plate 660 are gradually lowered from the front, as shown in FIG. It is formed in a shape (for example, a dogleg shape).
  • the dimension of the end portion of the screed plate 660 can be appropriately determined according to, for example, the maximum angle at which the adjacent screed plate 660 is relatively rotated.
  • the ends of the screed plate 660 located on the left and right outermost sides do not have to worry about interference, and thus may not be formed in the above shape.
  • both end portions of the screed plate 660 may have a circular arc shape with the middle projecting outward as viewed from the front.
  • a pair of left and right outriggers 700 that hold the frame 630 at a predetermined height with respect to the roadbed are attached to both ends of the frame 630 of the screed 600.
  • the outrigger 700 includes a cylindrical column 710 extending outward from the end of the frame 630, a first cylinder member 720 fixed to the tip of the column 710, and an axial direction with respect to the first cylinder member 720. And a second cylindrical member 730 capable of relative displacement. The axis of each of the first cylindrical member 720 and the second cylindrical member 730 extends in the vertical direction.
  • an actuator 740 including, for example, a hydraulic motor, a speed reducer, and a screw jack is attached to the upper portion of the first cylindrical member 720 to displace the second cylindrical member 730 relative to the first cylindrical member 720. It has been.
  • the 1st cylindrical member 720 and the 2nd cylindrical member 730 are mentioned as an example of a cylindrical member.
  • a central portion of the first peristaltic member 750 having a substantially channel shape that opens downward is fixed so as to be capable of swinging around an axis extending in the left-right direction.
  • a substantially channel shape that opens downward at both ends in the longitudinal direction of the first peristaltic member 750, at a portion equidistant from the peristaltic center, for example, a substantially channel shape that opens downward so that it can peristate about an axis extending in the left-right direction.
  • the center portions of the second swinging members 760 forming the above are fixed.
  • the wheel 770 a wheel made of a known material such as a urethane wheel, a rubber wheel, or a metal wheel can be applied.
  • an actuator 780 made of, for example, a hydraulic cylinder, is attached to the frame 630 so as to change the distance between the pair of left and right outriggers 700 in the left-right direction.
  • a tamper 800 is disposed between the screw spreader 500 and the screed 600, as shown in FIG. 1, to move the asphalt mixture spread by the screw spreader 500 up and down and harden it.
  • the tamper 800 includes a front tamper 810 positioned at the front and a rear tamper 820 positioned at the rear for each screed frame 650 to which the screed plate 660 is fixed.
  • a drive shaft 840 that moves the front tamper 810 and the rear tamper 820 up and down is rotatably attached to the screed frame 650 via a pair of left and right bearings 830 such as ball bearings.
  • the drive shaft 840 is formed with eccentric portions 840A and 840B for vertically moving the front tamper 810 and the rear tamper 820, respectively.
  • the base end portions of the front tamper 810 and the rear tamper 820 are attached to the eccentric portions 840A and 840B of the drive shaft 840 via bearings 850 and 860 such as ball bearings, respectively.
  • the eccentric portions 840A and 840B of the drive shaft 840 are configured to move the front tamper 810 and the rear tamper 820 up and down at different timings, for example, with a phase difference of 180 °.
  • the front end portions of the front tamper 810 and the rear tamper 820 may be subjected to induction hardening for the purpose of improving wear resistance, for example.
  • the spring joint 870 includes a spline 872 formed at the end of one drive shaft 840, a first cylindrical member 874 slidably fitted to the spline 872, and the other drive shaft. And a second cylindrical member 876 fixed to the end of 840, and a coil spring 878 disposed between the first cylindrical member 874 and the second cylindrical member 876.
  • the first cylindrical member 874 and the second cylindrical member 876 are formed with spring seats for holding the end portions of the coil springs 878 on the surfaces facing each other.
  • the outer diameter, the wire diameter, the natural length, the material, and the like of the coil spring 878 are appropriately determined so that torque for rotating the plurality of drive shafts 840 can be transmitted.
  • the first cylindrical member 874 and the second cylindrical member 876 are examples of the first member and the second member, respectively.
  • the plurality of drive shafts 840 connected via the spring joint 870 are rotationally driven by a drive mechanism 880 including a hydraulic motor, a sprocket, and a chain attached to the left and right centers of the frame 630.
  • the coil spring 878 of the spring joint 870 can reverse the winding direction with the left and right center of the screed 600 as a boundary. In this way, even if the angle formed by the axis of the adjacent drive shaft 840 changes, an external force in the compression direction always acts on the coil spring 878, and the first cylindrical member 874 and the second cylindrical member 876 are moved. It can be biased in the direction of separation. For this reason, the coil spring 878 does not extend beyond the natural length, and the rotational driving force can be transmitted to the adjacent drive shaft 840 without difficulty.
  • the ends of the adjacent tamper 800 that is, the front tamper 810 and the rear tamper 820 are in contact with each other in order to ram the asphalt mixture as much as possible.
  • the end portions of the adjacent front tamper 810 and rear tamper 820 interfere with each other like the screed plate 660, and this may not be smoothly deformed. is there.
  • the both ends (both end surfaces) in the left-right direction of the front tamper 810 and the rear tamper 820 are viewed from the front as shown in FIG. It is formed into a gradually lowering shape (for example, a U shape).
  • the dimensions of the end portions of the front tamper 810 and the rear tamper 820 can be appropriately determined according to, for example, the maximum angle at which the adjacent front tamper 810 and rear tamper 820 are relatively rotated. Further, the end portions of the front tamper 810 and the rear tamper 820 located on the outermost sides of the left and right do not need to be formed in the above shape because there is no concern about interference. Note that both end portions of the front tamper 810 and the rear tamper 820 may have an arc shape in which the middle projects outward when viewed from the front.
  • the tractor 200 is equipped with an electronic control device 900 that electronically controls various actuators as shown in FIG.
  • the electronic control device 900 includes a processor 910 such as a CPU (Central Processing Unit), a nonvolatile memory 920 such as a flash ROM (Read Only Memory), a volatile memory 930 such as a RAM (Random Access Memory), a hard disk, and the like. It has a storage 940 and a bus 950 that connects them together.
  • a distance sensor 960 that measures a travel distance from the reference position and an operation panel 970 that is operated by an operator are attached to predetermined positions of the tractor 200. Output signals from the distance sensor 960 and the operation panel 970 are input to the electronic control unit 900.
  • the electronic control unit 900 executes a control program stored in the nonvolatile memory 920, so that the bar feeder 400, the screw spreader 500, and the actuators 610 and 640 according to the output signals of the distance sensor 960 and the operation panel 970. , 740, 780, the drive mechanism 880, and the like.
  • the operation amount of each actuator 640 corresponding to the travel distance from the reference position is stored in advance.
  • the operation amount of each actuator 640 can be set according to the deviation between the shape of the existing road surface and the shape of the target road surface, for example.
  • the processor 910 of the electronic control device 900 reads the travel distance from the distance sensor 960, determines the operation amount of each actuator 640 according to this, and outputs a control signal corresponding to this operation amount to each actuator 640.
  • each actuator 640 is controlled according to the travel distance from the reference position. For this reason, the lower surface of the screed 600 is deformed into the shape of the target road surface according to the travel distance from the reference position, and for example, a specially shaped road surface having irregularities in the transverse direction and the longitudinal direction of the road can be formed. . At this time, since it is not necessary for the operator to manually change the shape of the screed 600, for example, the dimensional accuracy of the road surface that is finally formed can be improved.
  • the electronic control unit 900 can automatically control the actuator 610 that swings the leveling arm 620 and the actuators 740 and 780 of the outrigger 700 according to the travel distance from the reference position. In this case, if the storage amount 940 of the electronic control unit 900 stores in advance the operation amount of each actuator corresponding to the travel distance from the reference position, and outputs a control signal corresponding to this operation amount to each actuator. Good.
  • the asphalt finisher 100 is used to describe a method for leveling asphalt mixture that forms, for example, a specially shaped road surface having irregularities in the transverse direction and longitudinal direction of the road. Note that the leveling of the asphalt mixture described below is performed while the tractor 200 is self-propelled at a predetermined speed.
  • the dump truck DT loaded with the asphalt mixture AM approaches from the front of the asphalt finisher 100 and tilts the loading platform backward, thereby supplying the asphalt mixture AM to the hopper 300.
  • the supply of the asphalt composite material AM to the hopper 300 can be performed regularly or irregularly according to the remaining amount of the asphalt composite material AM in the hopper 300, for example.
  • the bar feeder 400 of the asphalt finisher 100 conveys the asphalt mixture AM supplied to the hopper 300 to the rear, and the asphalt mixture AM on the roadbed between the tractor 200 and the screw spreader 500. Is discharged.
  • the tamper 800 of the asphalt finisher 100 rams the asphalt mixture AM spread by the screw spreader 500 and the screed 600 lays the asphalt mixture AM tamped by the tamper 800. Level.
  • the electronic control unit 900 individually controls the actuators 640 attached to the frame 630 according to the travel distance from the reference position, and adjusts the lower surfaces of the tamper 800 and the screed 600 to the target road surface shape. Therefore, the asphalt finisher 100 can form a road surface having an arbitrary shape along the crossing direction of the road.
  • the asphalt mixture AM spread by the asphalt finisher 100 is rolled by a rolling machine such as a tire roller, for example.
  • the asphalt finisher 100 is not limited to a specially shaped road surface having irregularities in the crossing direction and longitudinal direction of the road, and can also form a road surface having an arbitrary shape such as a curved slope.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)

Abstract

La présente invention concerne une table qui étale et met à niveau du matériau de revêtement, comprenant une pluralité de plaques de lissage disposées en série et pouvant tourner l'une par rapport à l'autre et des actionneurs qui déplacent dans une direction verticale les extrémités extérieures des plaques de lissage situées sur les côtés les plus à l'extérieur dans les directions gauche et droite et les parties accouplées des plaques de lissage. De plus, les deux faces d'extrémité de chaque plaque de lissage présentent une forme qui se rétrécit progressivement à partir d'un sommet qui est un point central, dans la direction verticale, vers le haut et vers le bas.
PCT/JP2014/068958 2014-07-16 2014-07-16 Dispositif destiné à étaler et mettre à niveau du matériau de revêtement et procédé d'étalement et de mise à niveau de matériau de revêtement Ceased WO2016009515A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2014/068958 WO2016009515A1 (fr) 2014-07-16 2014-07-16 Dispositif destiné à étaler et mettre à niveau du matériau de revêtement et procédé d'étalement et de mise à niveau de matériau de revêtement
JP2016534034A JP6387096B2 (ja) 2014-07-16 2014-07-16 舗装材の敷き均し装置及び舗装材の敷き均し方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/068958 WO2016009515A1 (fr) 2014-07-16 2014-07-16 Dispositif destiné à étaler et mettre à niveau du matériau de revêtement et procédé d'étalement et de mise à niveau de matériau de revêtement

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114990968A (zh) * 2022-07-13 2022-09-02 山西博润交通科学工程有限公司 沥青路面施工工艺及设备
CN115250731A (zh) * 2022-07-29 2022-11-01 山东农业工程学院 一种青贮玉米收获铺平机构、收获机及方法
JP2024104069A (ja) * 2023-01-23 2024-08-02 株式会社Nippo 転圧装置及び転圧方法
CN119465740A (zh) * 2025-01-10 2025-02-18 新乡智慧城市建设管理有限公司 一种水泥混凝土路面铺设装置
JP7682319B1 (ja) 2024-02-27 2025-05-23 株式会社Nippo アスファルトフィニッシャ

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FR2260662A1 (en) * 1974-02-13 1975-09-05 Malet Sa Entreprise Depth-regulator for use in spreading road-courses - has brackets supporting adjustable blade-sections
US4854769A (en) * 1987-02-26 1989-08-08 Kajima Corporation System for paving inclined and/or curved surfaces
JPH02240306A (ja) * 1989-03-13 1990-09-25 Nippon Hodo Co Ltd 湾曲面仕上装置
JPH02144008U (fr) * 1989-04-28 1990-12-06
JPH10311005A (ja) * 1997-05-09 1998-11-24 Nippon Hodo Co Ltd 自走式骨材散布装置
JPH11269816A (ja) * 1998-03-25 1999-10-05 Nippon Hodo Co Ltd 舗装材の敷き均し装置
WO2006006246A1 (fr) * 2004-07-14 2006-01-19 Nippo Corporation Dispositif de lissage de matériau d’empierrement et procédé de lissage de matériau d’empierrement, et dispositif de compactage et procédé de compactage de la surface empierrée
JP2008115943A (ja) * 2006-11-02 2008-05-22 Ntn Corp 等速ジョイント構造
JP2008223480A (ja) * 2008-05-15 2008-09-25 Mitsugi Kimura アスファルトフィニッシャー
WO2011122134A1 (fr) * 2010-03-30 2011-10-06 新日本製鐵株式会社 Acier pour un durcissement à haute fréquence, matériau moulé grossièrement pour un durcissement à haute fréquence et procédé de fabrication de ce dernier, et élément en acier durci à haute fréquence
JP2014081208A (ja) * 2012-10-12 2014-05-08 Neturen Co Ltd 熱処理のシミュレーションプログラム

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JPH0526085Y2 (fr) * 1987-02-26 1993-07-01

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2260662A1 (en) * 1974-02-13 1975-09-05 Malet Sa Entreprise Depth-regulator for use in spreading road-courses - has brackets supporting adjustable blade-sections
US4854769A (en) * 1987-02-26 1989-08-08 Kajima Corporation System for paving inclined and/or curved surfaces
JPH02240306A (ja) * 1989-03-13 1990-09-25 Nippon Hodo Co Ltd 湾曲面仕上装置
JPH02144008U (fr) * 1989-04-28 1990-12-06
JPH10311005A (ja) * 1997-05-09 1998-11-24 Nippon Hodo Co Ltd 自走式骨材散布装置
JPH11269816A (ja) * 1998-03-25 1999-10-05 Nippon Hodo Co Ltd 舗装材の敷き均し装置
WO2006006246A1 (fr) * 2004-07-14 2006-01-19 Nippo Corporation Dispositif de lissage de matériau d’empierrement et procédé de lissage de matériau d’empierrement, et dispositif de compactage et procédé de compactage de la surface empierrée
JP2008115943A (ja) * 2006-11-02 2008-05-22 Ntn Corp 等速ジョイント構造
JP2008223480A (ja) * 2008-05-15 2008-09-25 Mitsugi Kimura アスファルトフィニッシャー
WO2011122134A1 (fr) * 2010-03-30 2011-10-06 新日本製鐵株式会社 Acier pour un durcissement à haute fréquence, matériau moulé grossièrement pour un durcissement à haute fréquence et procédé de fabrication de ce dernier, et élément en acier durci à haute fréquence
JP2014081208A (ja) * 2012-10-12 2014-05-08 Neturen Co Ltd 熱処理のシミュレーションプログラム

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114990968A (zh) * 2022-07-13 2022-09-02 山西博润交通科学工程有限公司 沥青路面施工工艺及设备
CN115250731A (zh) * 2022-07-29 2022-11-01 山东农业工程学院 一种青贮玉米收获铺平机构、收获机及方法
CN115250731B (zh) * 2022-07-29 2023-09-08 山东农业工程学院 一种青贮玉米收获铺平机构、收获机及方法
JP2024104069A (ja) * 2023-01-23 2024-08-02 株式会社Nippo 転圧装置及び転圧方法
JP7747677B2 (ja) 2023-01-23 2025-10-01 株式会社Nippo 転圧装置及び転圧方法
JP7682319B1 (ja) 2024-02-27 2025-05-23 株式会社Nippo アスファルトフィニッシャ
JP2025130565A (ja) * 2024-02-27 2025-09-08 株式会社Nippo アスファルトフィニッシャ
CN119465740A (zh) * 2025-01-10 2025-02-18 新乡智慧城市建设管理有限公司 一种水泥混凝土路面铺设装置

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JPWO2016009515A1 (ja) 2017-05-25

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