EP1596007B1 - Asphalt uniformly paving equipment - Google Patents

Asphalt uniformly paving equipment Download PDF

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Publication number
EP1596007B1
EP1596007B1 EP03703346A EP03703346A EP1596007B1 EP 1596007 B1 EP1596007 B1 EP 1596007B1 EP 03703346 A EP03703346 A EP 03703346A EP 03703346 A EP03703346 A EP 03703346A EP 1596007 B1 EP1596007 B1 EP 1596007B1
Authority
EP
European Patent Office
Prior art keywords
lower layer
upper layer
layer
laying
paving materials
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.)
Expired - Lifetime
Application number
EP03703346A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1596007A1 (en
EP1596007A4 (en
Inventor
Satohiko c/o NIPPON HODO CO. LTD. TANAKA
Toru c/o NIPPON HODO CO. LTD. SAITO
Sukenori c/o WIRTGEN JAPAN CO. LTD NAKAMURA
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.)
Joseph Voegele AG
Nippo Corp
Original Assignee
Joseph Voegele AG
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 Joseph Voegele AG, Nippo Corp filed Critical Joseph Voegele AG
Publication of EP1596007A1 publication Critical patent/EP1596007A1/en
Publication of EP1596007A4 publication Critical patent/EP1596007A4/en
Application granted granted Critical
Publication of EP1596007B1 publication Critical patent/EP1596007B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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 paver for laying asphalt mixture on an applied surface and more particularly, relates to a technique for improving the efficiency of conveyance of the paver and that of laying operation for paving materials performed by the paver.
  • a method of laying a plurality of paving materials in layers has been employed for improving drainage and noise-reduction properties as well as for reducing a cost spent for the materials.
  • a thin layer is laid to form an upper layer
  • aggregate projecting from or coming out of the surface of the upper layer might be drawn by a screed to result in forming damages and scratches on the surface of the upper layer, and therefore in order to prevent such formation of damages, it is necessary to lay the upper layer on the lower layer in unhardened state at a high temperature.
  • the temperature is quickly lowered so as to make it difficult to obtain an appropriate density of the layer after application of rolling to the layer.
  • a paver capable of simultaneously completing pavement of multiple layers (it will be hereinafter referred to as a multi-layer paver) has been utilized.
  • the attachment should desirably be conveyed without being dismounted from the base paver by taking into consideration the conveying efficiency of the base paver and the attachment.
  • the overall height of the paver becomes large, and as a result, the top end of the asphalt paver might come into interference with a lower face of a structure such as a bridge during conveying of the paver. For this reason, even if the conveying efficiency of the asphalt paver might be decreased, it has been necessary for the base paver and the attachment to be individually conveyed.
  • the asphalt paver be provided with a hopper having a large capacity thereof capable of receiving therein the asphalt mixture in order to improve the laying efficiency.
  • a hopper having a large capacity thereof capable of receiving therein the asphalt mixture in order to improve the laying efficiency.
  • more increases in the capacity of the hopper must have been avoided.
  • an object of the present invention is to provide an asphalt paver including a hopper mounted on the top end of the asphalt paver and arranged to be closably openable and be foldable so that the hopper may increase the capacity thereof and may permit the overall height of the paver to be lowered to thereby make it possible to improve the efficiency of conveyance of the paver as well as that of the laying operation applied to paving materials.
  • an asphalt paver is defined by the features of claim 1.
  • the asphalt paver is constructed so that an attachment either for laying a single layer or for laying multiple layers is selectively and removably attached to a base paver provided with a base conveyor for conveying paving materials and supplying the materials onto an applied surface.
  • the attachment for laying a single layer is constructed to include a base hopper unit for storing therein the paving materials and for supplying the materials to the base conveyor, and a base screed unit for laying the paving materials supplied by the base conveyor onto the applied surface.
  • the attachment for laying multiple layers is constructed to include a hopper unit for lower layer, which stores therein paving materials for the lower layer and supplies the materials to the base conveyor, a screed unit for lower layer for laying the paving materials for the lower layer conveyed and supplied onto the applied surface by the base conveyor, a hopper-conveyor unit for upper layer which is provided with a hopper for upper layer storing therein paving materials for the upper layer and a conveyor for upper layer conveying and supplying, onto the laid paving materials for the lower layer, the paving materials for the upper layer stored in the hopper for upper layer, and a screed unit for upper layer for laying the paving materials for the upper layer, which are conveyed and supplied onto the paving materials for the lower layer.
  • the upper layer hopper is constructed to have a pair of left and right buckets, each having a substantially trapezoidal cross-section, which are supported to be closably openable by a support shaft extending in a longitudinal direction of a vehicle body, each of the pair of buckets being constructed to have an upper end capable of being collapsible.
  • a single-layer paver or a multi-layer paver may be alternatively constructed by selectively attaching an attachment for either a single layer or multiple layers to the base paver.
  • the asphalt paver can be a wide-use apparatus enabling it to achieve cost reduction and to improve working efficiency of the asphalt paver.
  • installation of only attachments enables it to achieve simultaneous laying of multiple layers and accordingly, facility investment can be suppressed to the minimum limit of requirement.
  • an upper layer is laid immediately after the laying of a lower layer.
  • the upper layer will be always laid above the lower layer kept in an unhardened state at a high temperature and therefore, engagement of aggregate can be improved to result in a good bonding of both layers compared with the case where multiple single-layer pavers are employed for individually laying respective one of multiple layers.
  • the lower layer can be re-compacted and hardened to exhibit a good degree of compaction and as a result, surface roughness is improved.
  • the capacity of a hopper for upper layer can be increased by extending upper portions of buckets of the hopper for upper layer.
  • the bottom faces of the buckets can be inclined by closing the buckets so that any residue of paving materials left in the bucket bottom faces might be delivered into delivery channels.
  • the upper portion of the rear wall of the hopper for upper layer might be extended upward to a position higher than the other side walls and be collapsible. Due to adoption of such construction, when the paving materials for an upper layer are fed from the front of the asphalt paver while extending the rear wall, the rear wall might be used as a kind of indicator for controlling the work while permitting an operator to perceive a feeling of distance. Therefore, the feeding work of the paving materials can be easy.
  • the screed unit for lower layer should preferably be constructed to integrally include a spreader for lower layer for spreading paving materials conveyed and supplied onto an applied surface over the entire paving width, a screed for lower layer for laying the paving materials for the lower layer by applying thereto a compaction, and a spreader for upper layer for spreading paving materials conveyed and supplied onto the paving materials for the laid lower layer over the entire paving width.
  • the entire length of the asphalt paver could be reduced so as to improve the weight balance of the paver in the longitudinal direction thereof and to spread respective paving materials for the lower and upper layers over the entire paving width. Therefore, it is possible to control the final thickness of the pavement at a high accuracy.
  • the integral provision of the spreader for lower layer, the screed for lower layer, and the spreader for upper layer facilitates mounting and dismounting of the attachment for the laying of multiple layers.
  • the above-mentioned screed unit for lower layer should preferably be constructed in a manner such that the screed for lower layer for laying the paving materials for the lower layer is suspended by a hydraulic jack.
  • a difference between the height of the laid surface achieved by the screed unit for upper layer and that by the screed unit for lower layer should preferably be detected, and the laid height of the paving materials for the lower layer should desirably be adjusted so that the above-mentioned detected value becomes a predetermined value.
  • an asphalt paver (it will be hereinafter referred to as "a paver") according to the present invention is constructed to include a base paver 10, and an attachment for either a single layer or multiple layers, which is selectively mounted and dismounted.
  • the base paver 10 is constructed to have a vehicle body 10A, which is mounted thereon a drive-power unit such as a diesel engine and is provided with crawlers 10B as a running unit, a master console 10C, and a seat 10D. Also, on the left and right sides as well as on the rear side of the vehicle body 10A, hydraulic cylinders 10E and 10F are swingably mounted respectively for adjusting the height of a screed as against an applied surface A.
  • the hydraulic cylinders 10E mounted on the left and right sides of the vehicle body 10A have an operating rod, respectively, which is provided with an extreme end portion rotatably connected to an end portion of a lever 10G pivotably attached, at its substantially middle portion, to the vehicle body 10A.
  • a bottom portion of the vehicle body 10A which is arranged to be laterally sandwiched by the crawlers 10B is provided with a base conveyor 10H such as a bar-feeder, for conveying paving materials from the front side of the vehicle body 10A to the rear side thereof and supplying the conveyed paving materials onto the applied surface.
  • a base conveyor 10H such as a bar-feeder
  • the attachment for laying a single layer is constructed to include a base hopper unit 20, a base spreader unit 30, and a base screed unit 40.
  • the base hopper unit 20 stores therein paving materials such as asphalt mixture, and is constructed to supply the paving materials from a delivery port opening at the bottom of the unit 20 to the base conveyor 10H.
  • the base spreader unit 30 includes a screw 30A having a main axis extending in a direction corresponding to the direction from the left to right and vice versa of the vehicle body 10A, and spreading the paving materials supplied onto the applied surface A over the entire width of an area to be paved, and the base spreader unit 30 per se is mounted on the rear portion of the vehicle body 10A via a mounting bracket 30B.
  • the base screed unit 40 is constructed to include a pair of left and right leveling arms 40A extending in a direction corresponding to the longitudinal direction of the vehicle body 10A, and screeds 40B secured to the ends of the leveling arms 40A.
  • the leveling arms 40A are rotatably connected, at their basic ends, to the other end of the afore-mentioned lever 10G, and at their portions adjacent to the extreme ends thereof, to the extreme end of the operating rod of the hydraulic cylinder 10F positioned at the rear end of the vehicle body 10A.
  • the screeds 40B operate so as to apply a compaction by its own weight to the paving materials and to lay the paving materials on the applied surface.
  • An attachment for multiple layers is constructed to include a hopper unit 50 for lower layer, a hopper-conveyor unit 60 for upper layer, a unit 70 incorporating therein a screed for lower layer and spreaders for upper and lower layers (it will be merely referred to as "a screed unit for lower layer” throughout the specification and the accompanying claims), and a screed unit 80 for upper layer.
  • the hopper unit 50 for lower layer is constructed to store therein paving materials for a lower layer, which are to be laid on a lower layer, and to supply the paving materials to the base conveyor 10H from a delivery port opening in the bottom portion of the unit 50.
  • the width and height of the hopper unit 50 for lower layer are desirably formed to have the possible maximum dimensions permitting the unit to be conveyed by a conveyance vehicle in the state where it is mounted on the base paver 10, in order to increase the capacity of the unit 50 to a possible largest extent thereby improving the efficiency of laying operation.
  • the bottom face of the hopper unit 50 for lower layer should preferably be formed to have an inclination permitting the paving materials for the lower layer to be slid down there toward the delivery port.
  • the hopper-conveyor unit 60 for upper layer is mounted on an upper face of the vehicle body 10A at a position behind the hopper unit 50 for lower layer.
  • the hopper-conveyor unit 60 for upper layer is constructed to include a hopper 62 for upper layer for storing therein paving materials for an upper layer, which is to be laid on an upper layer, and a conveyor 64 for upper layer, such as a screw feeder, which conveys paving materials for an upper layer from the front to the rear side of the vehicle body 10A and supplies the conveyed materials onto the lower layer.
  • the upper layer hopper 62 is formed to have the shape of a box having an opening on respective front and upper faces thereof. As shown in Fig.
  • the bottom face of the hopper 62 for upper layer is formed with two delivery channels 62A having a substantially semi-circular section and extending in a direction corresponding to the longitudinal direction of the vehicle body 10A.
  • the conveyor 64 for upper layer has a part thereof fitted in the above-mentioned two semi-circular delivery channels.
  • a pair of left and right buckets 62B having a substantially trapezoidal cross-section thereof are axially supported to be openable and closable at the sides of the delivery channels 62A which correspond to the left and right outward positions of the vehicle body 10A.
  • the buckets 62B are opened toward a position shown in Fig. 2 (A) to lower the entire height of the paver during the conveying thereof.
  • the buckets 62B are closed to a state as shown in (B) of Fig. 2 , when the paving materials are left as residual materials in the bottom of the buckets 62B during construction of the asphalt pavement, so as to bring each bucket bottom to a state inclining against the delivery channel 62A.
  • respective upper portions of the buckets 62B are formed to be foldable or collapsible to occupy two positions i.e., a conveyance position and a working position as shown in (A) of Fig. 3 , in order to avoid interference with any lower face of a structure such as a bridge during the conveyance of the paver as well as to increase the storing capacity of the paving materials for an upper layer during construction of laying work.
  • the width of folding of the upper portion of each bucket 62B is desirably set so that when the paver is mounted on a conveyance vehicle for the conveying purpose, the top end portion of the paver is located below a predetermined maximum height legally determined by a specific regulation such as the vehicle control regulations.
  • the hopper 62 for upper layer is provided with a rear wall 62C, which is provided to extend more upward than the other sidewalls of the hopper, so that when the paving materials are fed from the front of the paver, the rear wall becomes a kind of indicator for an operator conducting the feeding operation.
  • the top end of the rear wall 62C might come into interference with the lower face of a structure such as a bridge. Therefore, similar to the upper portion of the above-mentioned buckets, the rear wall of the hopper 62 for upper layer is made foldable or collapsible so as to come either one of the two positions, i.e., a conveyance position and a working position, as shown in (B) of Fig. 3 .
  • the front wall of the hopper 62 for upper layer is formed by the rear wall of the hopper unit 50 for lower layer.
  • the screed unit 70 for lower layer is mounted on the rear portion of the vehicle unit 10A via a mounting bracket 70A.
  • the screed unit 70 for lower layer is constructed to include a spreader 72 for lower layer, a screed 74 for lower layer, and a spreader 76 for upper layer, which are in turn mounted on frame 70B extending rearward from the rear portion of the vehicle body 70A.
  • the spreader 72 for lower layer and the spreader 76 for upper layer spread the paving materials for a lower layer and the paving materials for an upper layer, which are supplied onto the applied surface A in the left and right directions of the vehicle body 10A by using a screws 72A and 76A, respectively, having a length corresponding to a width to be paved.
  • the screws 72A and 76A can be adjusted in their respective heights at the positions where they are mounted on the frame 70B, in compliance with the lift thickness of each of the lower layer and the upper layer to be laid.
  • the screed 74 for lower layer is provided for compacting and laying the paving materials for a lower layer, which are spread by the spreader 72 for lower layer, by applying compaction and vibrating effects to the paving materials due to its gravity and a tamper thereof.
  • the screed 74 for lower layer might be provided with extensions for permitting it to adjustably change the lengths thereof on both the left and right sides of the vehicle body 10A in compliance with the width of pavement.
  • the frame 70B is mounted to be capable of moving up and down along a slide guide 70C of the mounting bracket 70A, and is suspended from the bracket 70A by a hydraulic cylinder 70D.
  • the screed 74 for lower layer is suspended from the frame 70B by a hydraulic jack 70E, and is connected to the front portion of the frame 70B via every two tie-rods 70F arranged on the left and right sides, respective two tie-rods 70F being arranged to be vertically spaced apart but in parallel with one another.
  • the tie-rods 70F form a mechanism of a parallel links, so that even when the screed 74 for lower layer is moved up and down by the hydraulic jack 70E, the bottom end of the screed 74 for lower layer is always guaranteed to be in substantially parallel with the applied surface A. Further, by adjusting the length of each of the tie-rods 70F, it is possible to selectively change the laying angle of the screed 74 for lower layer in compliance with the sort and thickness of the paving materials used for laying operation. Moreover, the arrangement in which the screed 74 for lower layer is suspended by hydraulic jack 70E makes it possible to reduce the entire length and width of the paver, and therefore the conveyance of the paver can be made easier.
  • the screed unit 80 for upper layer is constructed by including a pair of left and right leveling arms 80A extending in a longitudinal direction of the vehicle body 10A, and screeds 80B attached to the extreme end portions of the arms 80A.
  • the leveling arms 80A are rotatably connected, at their respective base portions, to the other end of the lever 10G, and are rotatably connected, at positions adjacent to the front ends thereof, to the end of the operating rod of the hydraulic cylinder 10F.
  • the screed 80B is provided for laying the paving materials for an upper layer, which are spread over the paving materials for a lower layer by the spreader 76 for upper layer, by applying compaction and vibrating effects to the paving materials by the use of its gravity and a tamper thereof.
  • the entire length of the leveling arms 80A of the screed unit 80 for upper layer is selected to be longer than that of the leveling arms 40A of the base screed unit 40 by taking into consideration the fact that the screed unit 70 for lower layer is interposed and positioned between the vehicle body 10A and the screed 80B.
  • the base hopper unit 20 When a single layer of asphalt mixture is laid on an applied surface A, the base hopper unit 20, the base spreader unit 30 and base screed unit 40 are mounted on the base paver 10, as shown in (A) of Fig. 5 . Subsequently, paving materials are fed into the base hopper unit 20.
  • the paving materials are supplied from the base hopper unit 20 into the base conveyor 10H.
  • the paving materials supplied into the base conveyor 10H are conveyed toward the rear portion of the vehicle body 10A, and are in turn supplied onto the applied surface A from the rear end portion of the vehicle body 10A.
  • the paving materials supplied onto the applied surface A are spread by the base spreader unit 30 over the whole area of the paving width. Then, the spread paving materials are compacted by the screed 40B of the base screed unit 40 to have a predetermined thickness of pavement after being laid.
  • the hopper unit 50 for lower layer, the hopper-conveyor unit 60 for upper layer, the screed unit 70 for lower layer, and the screed unit 80 for upper layer are mounted on the base paver 10, as shown in (B) of Fig. 5 .
  • paving materials for a lower layer are fed into the hopper unit 50 for lower layer and paving materials for an upper layer are fed into the hopper 62 for upper layer of the hopper-conveyor unit 60 for upper layer.
  • the buckets 62B of the hopper 62 for upper layer are opened to come to the position shown in (A) of Fig. 2 , and also the buckets 62B and the upper portion of the rear wall 62C are extended to come to the respective working positions shown in Fig. 3 .
  • the paving materials B for a lower layer are supplied from the hopper unit 50 for lower layer into the base conveyor 10H.
  • the paving materials B for a lower layer supplied into the base conveyer 10H are conveyed toward the rear portion of the vehicle body 10A, and are then supplied onto the applied surface A from the rear end of the vehicle body 10A, as shown in Fig. 6 .
  • the paving materials B for the lower layer supplied onto the applied surface A are spread by the spreader 72 for lower layer over the entire area of the paving width.
  • the spread paving materials B for the lower layer are then compacted by the screed 74 for lower layer to have a predetermined pavement thickness.
  • the lower layer of the pavement is completed by the described laying operation.
  • Paving materials C for an upper layer supplied from the hopper 62 for upper layer to the conveyor 64 for upper layer of the hopper-conveyor unit 60 for upper layer are then supplied onto a lower layer from the rear end portion of the conveyor 64 through a delivery chute 66.
  • the paving materials C for an upper layer supplied onto the lower layer are spread by the spreader 76 for upper layer over the entire area of the paving width.
  • the spread paving materials C for the upper layer are compacted and laid by the screed 80B of the screed unit 80 for upper layer so as to have a predetermined pavement thickness.
  • the process for paving the upper layer of the pavement is completed.
  • the laid paving materials are rolled by a suitable road roller to harden the paving materials and as a result, the asphalt pavement is completed.
  • the paver can be of general purpose to thereby allow a cost reduction as well as an improvement of the working efficiency of the paver. More specifically, when the base paver is possessed, installation of only attachments makes it possible to conduct simultaneous laying of multiple layers, and as a result, the facility investment can be suppressed to the possible minimum limit.
  • the attachment for laying multiple layers mounted on the base paver 10 lays an upper layer immediately after the laying of a lower layer. Therefore, the upper layer is laid over the lower layer in the unhardened state and at a high temperature and accordingly, bonding of both layers can be improved compared with the case where multiple layers are laid by employing a plurality of pavers for a single layer. Furthermore, when the upper layer is compacted during the laying process, compaction is additionally applied to the lower layer so as to re-compact the lower layer to thereby obtain a good degree of compaction of the lower layer.
  • the paving materials for an upper layer and those for a lower layer may consist of the same kind of asphalt mixture.
  • this paving when a thick layer of pavement approximately from 10 through 30 centimeters thick should be performed, components in the upper portion of the layer and those in the lower potion of the layer might vary from one another, and the degree of compaction in the lower portion of the thick layer might be insufficient and weak.
  • the hopper 62 for upper layer of the hopper-conveyor unit 60 for upper layer is pivotally rotated and folded to the position for conveyance position. Namely, the buckets 62B are brought to the open position thereof, as shown in (A) of Fig. 2 , and the upper portion of the respective buckets 62B and the upper portion of the rear wall 62C are folded to the conveyance positions as shown in Fig. 3 .
  • the overall height of the paver can be lowered from the height H1 shown in Fig. 6 to that H2 shown in Fig.
  • the top end of the paver can be lessened to reduce occurrence of any interference with a lower face of a structure such as a bridge.
  • the upper portion of the buckets 62B and the upper portion of the rear wall 62C are extended, so that the capacity of the hopper 62 for upper layer can be increased.
  • the residue of paving materials left in the bottom of the buckets 62B can be delivered toward the delivery channels 62A by closing the buckets 62B.
  • supply of the paving materials can be smoothly carried out, and as a result the efficiency of the laying operation is improved with certainty.
  • the screed 80B (it will be hereinafter referred to as a screed for upper layer) of the screed unit 80 for upper layer has an upper face to which a bracket 90 curved in a substantially L-letter shape toward the front portion of the vehicle body 10A is secured as shown in Fig. 8 .
  • the extreme end portion of the bracket 90 is formed in the shape of a substantial cylinder.
  • a substantially columnar support 92 extending vertically is mounted so as to be able to adjust the height thereof.
  • the lower end of the support 92 is provided with a height detection sensor 94 (a detection apparatus) arranged to be in constant contact with the upper face of the screed 74 for lower layer to thereby detect the height thereof.
  • the height detection sensor 94 has an arm 94B of which the base end portion is secured to the rotating shaft 94A extending in the left and right direction of the vehicle body 10A, and also has a follower plate 94C rotatably secured to the extreme end portion of the arm 94B and arranged to be in constant contact with the upper face of the screed 74 for lower layer.
  • the arm 94B is rotated, and an angle of rotation can be detected by a built-in potentiometer.
  • the angle of rotation of the arm 94B is input in a control unit containing therein an electronic computer.
  • the control unit on the basis of the angle of rotation of the arm 94B detected by the height detection sensor 94, a difference between the heights of the laid surfaces, which have been laid by the screed 80B for upper layer and the screed 74 for lower layer, respectively, is calculated.
  • the hydraulic jack 70E of the screed unit 70 for lower layer is controlled so that the calculated difference between the heights of the laid surfaces becomes a predetermined value, and the height of the screed 74 for lower layer as against the applied surface A is adjusted.
  • the height adjustment apparatus is brought into practice by the control unit in the manner of controlling software.
  • the described method is achieved by the employment of a contact type sensor, the present invention is not limited to this method, and non-contact type sensor using, for example, infrared and supersonic waves might be employed.
  • the construction and arrangement for detecting the difference in the heights between the surfaces laid by the screed 80B for upper layer and the screed 74 for lower layer is not limited to the described one, and as shown in Fig. 10 , the height detection sensor 94 may be supported and secured on the upper surface of the screed 74 for lower layer, via brackets 90 and support 92.
  • the asphalt paver according to the present invention is provided with a construction such that the hoppers mounted and positioned on the top end portion of the asphalt paver are closably openable and foldable or collapsible, the capacity of the hoppers can be increased while reducing the overall height of these hoppers. As a result, the efficiency of conveyance of the paver and the efficiency of laying operation for paving materials are improved and therefore, the asphalt paver can be greatly useful.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Road Signs Or Road Markings (AREA)
EP03703346A 2003-02-19 2003-02-19 Asphalt uniformly paving equipment Expired - Lifetime EP1596007B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/001817 WO2004074578A1 (ja) 2003-02-19 2003-02-19 アスファルト敷均装置

Publications (3)

Publication Number Publication Date
EP1596007A1 EP1596007A1 (en) 2005-11-16
EP1596007A4 EP1596007A4 (en) 2007-08-08
EP1596007B1 true EP1596007B1 (en) 2009-05-06

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Application Number Title Priority Date Filing Date
EP03703346A Expired - Lifetime EP1596007B1 (en) 2003-02-19 2003-02-19 Asphalt uniformly paving equipment

Country Status (5)

Country Link
EP (1) EP1596007B1 (ja)
AT (1) ATE430838T1 (ja)
AU (1) AU2003207091A1 (ja)
DE (1) DE60327559D1 (ja)
WO (1) WO2004074578A1 (ja)

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DE102016010474A1 (de) * 2015-09-07 2017-03-09 Dynapac Gmbh Straßenbaumaschine, insbesondere Straßenfertiger oder Beschicker
CN105178144A (zh) * 2015-10-08 2015-12-23 江苏奥新科技有限公司 一种就地热再生双层摊铺一体机及其工作过程
CN109610278B (zh) * 2019-01-29 2021-01-26 长安大学 一种沥青混合料高密实摊铺成型方法
DE102019201906A1 (de) * 2019-02-14 2020-08-20 Thyssenkrupp Ag Vorrichtung und Verfahren zum Ablegen, Verteilen und Verdichten von Material in definierbaren Schichthöhen

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DE29803077U1 (de) * 1998-02-24 1998-06-25 Hermann Kirchner GmbH & Co KG, 36251 Bad Hersfeld Zusatzeinrichtung für einen Fertiger
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JP2001311141A (ja) * 2000-04-28 2001-11-09 Hitachi Constr Mach Co Ltd 自走式土質改良機
JP3548129B2 (ja) * 2000-08-23 2004-07-28 株式会社Ｎｉｐｐｏコーポレーション アスファルト敷均装置及びアスファルト敷均方法

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EP1596007A1 (en) 2005-11-16
WO2004074578A1 (ja) 2004-09-02
DE60327559D1 (de) 2009-06-18
EP1596007A4 (en) 2007-08-08
AU2003207091A8 (en) 2004-09-09
AU2003207091A1 (en) 2004-09-09
ATE430838T1 (de) 2009-05-15

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