WO2020009123A1 - Finisseur d'asphalte - Google Patents

Finisseur d'asphalte Download PDF

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Publication number
WO2020009123A1
WO2020009123A1 PCT/JP2019/026362 JP2019026362W WO2020009123A1 WO 2020009123 A1 WO2020009123 A1 WO 2020009123A1 JP 2019026362 W JP2019026362 W JP 2019026362W WO 2020009123 A1 WO2020009123 A1 WO 2020009123A1
Authority
WO
WIPO (PCT)
Prior art keywords
retaining plate
extension
support bar
tractor
screed
Prior art date
Application number
PCT/JP2019/026362
Other languages
English (en)
Japanese (ja)
Inventor
伊藤　洋平
啓介 中村
Original Assignee
住友建機株式会社
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 住友建機株式会社 filed Critical 住友建機株式会社
Priority to JP2020529014A priority Critical patent/JPWO2020009123A1/ja
Priority to CN201980044323.1A priority patent/CN112368445A/zh
Priority to EP19829871.3A priority patent/EP3819430A4/fr
Publication of WO2020009123A1 publication Critical patent/WO2020009123A1/fr

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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
    • 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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/14—Extendable screeds
    • 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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/14—Extendable screeds
    • E01C2301/16—Laterally slidable screeds

Definitions

  • the present disclosure relates to an asphalt finisher.
  • Patent Document 1 An asphalt finisher provided with a retaining plate disposed in front of a screw has been known (see Patent Document 1).
  • the retaining plate described above has a fixed length structure, it cannot handle when the screw is extended in the vehicle width direction. Therefore, when the screw is extended in the vehicle width direction, an extended retaining plate may be added in the vehicle width direction. However, the addition of the extended retaining plate involves a complicated operation.
  • An asphalt finisher includes a tractor, a screed, a screw disposed in front of the screed, a body-side retaining plate disposed in front of the screw and attached to the tractor, A fuselage-side support rod disposed between the tractor and the fuselage-side retaining plate in front of a side-retaining plate, an extended retaining plate rotatably attached to the fuselage-side retaining plate, and the extension An extension support bar disposed between the tractor and the extension retaining plate in front of the retaining plate.
  • 1 is a side view of an asphalt finisher according to an embodiment of the present invention.
  • 1 is a top view of an asphalt finisher according to an embodiment of the present invention. It is a top view of the rear part of an asphalt finisher which shows three states of an extended retaining plate.
  • It is a perspective view of the periphery of the right screw which shows the folding state of the extension retaining plate.
  • It is a perspective view of the periphery of the right screw which shows the 1st deployment state of an extension retaining plate.
  • It is a perspective view of the circumference of the right screw which shows the 2nd expansion state of an extension retaining plate.
  • It is a perspective view of the periphery of the right screw which shows another structure of the extension support bar.
  • FIG. 6 is a top view of an asphalt finisher according to another embodiment of the present invention.
  • FIG. 1A and 1B show an asphalt finisher 100 as an example of a road machine according to an embodiment of the present invention.
  • FIG. 1A is a side view of the asphalt finisher 100
  • FIG. 1B is a top view of the asphalt finisher 100.
  • the coarsest dot pattern AP in FIG. 1B indicates the surface of an existing pavement or curb
  • the finest dot pattern NP indicates a new pavement.
  • the asphalt finisher 100 mainly includes a tractor 1, a hopper 2, and a screed 3.
  • the direction of the hopper 2 (+ X direction) as viewed from the tractor 1 is defined as the front
  • the direction of the screed 3 as viewed from the tractor 1 is defined as the rear.
  • the tractor 1 is a mechanism for running the asphalt finisher 100.
  • the tractor 1 moves the asphalt finisher 100 by rotating the rear wheel 5 using a rear wheel traveling motor and rotating the front wheel 6 using a front wheel traveling motor.
  • the rear wheel running motor and the front wheel running motor are rotated by receiving a supply of hydraulic oil from a hydraulic pump.
  • the rear wheel 5 and the front wheel 6 may be replaced by crawlers.
  • the controller 50 is a control device that controls the asphalt finisher 100.
  • the controller 50 includes an arithmetic processing device including a CPU, a volatile storage device, and a nonvolatile storage device, and is mounted on the tractor 1.
  • Various functions of the controller 50 are realized by the CPU executing a program stored in the nonvolatile storage device.
  • the hopper 2 is a mechanism for receiving a pavement material. In the present embodiment, it is installed on the front side of the tractor 1 and is configured to be opened and closed by the hopper cylinder 24 in the Y-axis direction (vehicle width direction).
  • the asphalt finisher 100 normally receives the paving material (for example, asphalt mixture) from the dump truck bed with the hopper 2 fully opened.
  • 1A and 1B show the hopper 2 in a fully opened state.
  • the pavement material in the hopper 2 decreases, the hopper 2 is closed, and the pavement material near the inner wall of the hopper 2 is collected at the center of the hopper 2. This is because the conveyor CV at the center of the hopper 2 can feed the pavement material to the rear side of the tractor 1.
  • the pavement material fed to the rear side of the tractor 1 is spread in the vehicle width direction on the roadbed RB behind the tractor 1 and in front of the screed 3 by the screw SC.
  • the screw SC includes a right screw SCR and a left screw SCL.
  • the screw SC is configured so that an extension screw can be connected.
  • the screed 3 is a mechanism for leveling paving materials.
  • the screed 3 mainly includes a front fixed screed 30 and a rear telescopic screed 31.
  • the rear telescopic screed 31 is expanded and contracted in the vehicle width direction by the screed telescopic cylinder 26.
  • the screed 3 is a floating screed pulled by the tractor 1, and is connected to the tractor 1 via a leveling arm 3A. The screed 3 is moved up and down together with the leveling arm 3A by expansion and contraction of the screen drift cylinder 25.
  • the front fixed screed 30 includes a left front fixed screed 30L and a right front fixed screed 30R
  • the rear telescopic screed 31 includes a left rear telescopic screed 31L and a right rear telescopic screed 31R
  • the screed telescopic cylinder 26 includes a left screed telescopic cylinder 26L and a right screed telescopic cylinder 26R.
  • the left rear telescopic screed 31L is expanded and contracted in the vehicle width direction by a left screed telescopic cylinder 26L
  • the right rear telescopic screed 31R is expanded and contracted in the vehicle width direction by a right screed telescopic cylinder 26R.
  • the left front fixed screed 30L is vibrated by the left front vibrator 27L
  • the right front fixed screed 30R is vibrated by the right front vibrator 27R
  • the left rear telescopic screed 31L is vibrated by the left rear vibrator 28L
  • the right rear telescopic screed 31R is vibrated by the right rear vibrator 28R.
  • the leveling cylinder 23 is a hydraulic cylinder that moves the front end of the leveling arm 3A up and down to adjust the spread thickness of the asphalt mixture.
  • a side plate 40 is attached to an end of the screed 3.
  • the side plate 40 limits excessive spread of the paving material PV spread by the screw SC in the vehicle width direction.
  • 1A and 1B show a pavement material PV spread by the screw SC in a dot pattern.
  • the side plate 40 includes a right side plate 40R extending forward from the right rear telescopic screed 31R, and a left side plate 40L extending forward from the left rear telescopic screed 31L.
  • a retaining plate 41 is attached to the side of the tractor 1 as an aircraft-side retaining plate.
  • the retaining plate 41 prevents the paving material PV from splashing forward near the tractor 1 (particularly, the rear wheel 5) due to the rotation of the screw SC.
  • the retaining plate 41 includes a right retaining plate 41R attached to the right side of the tractor 1 and a left retaining plate 41L attached to the left side of the tractor 1.
  • the left retaining plate 41L is detachably fastened to the left side of the tractor 1 by fastening members such as bolts or screws.
  • the left retaining plate 41L may be rotatably (foldable) attached to the left side of the tractor 1 via a hinge or the like.
  • the left retaining plate 41L may have a slide-type telescopic structure. The same applies to the right retaining plate 41R.
  • a support rod B1 as a fuselage-side support rod is disposed between the retaining plate 41 and the tractor 1.
  • the support bar B1 is configured to be able to maintain a deployed state in which the retaining plate 41 extends in the vehicle width direction along the screw SC.
  • the support bar B1 is configured to prevent the retaining plate 41 from being folded toward the tractor 1 by being pushed by the paving material PV in the deployed state.
  • the support bar B1 includes a left support bar B1L and a right support bar B1R.
  • One end of the left support bar B1L is attached to the tractor 1, and the other end is attached to the left retaining plate 41L.
  • the left support rod B1L is configured by a pair of support rods, but may be configured by only one support rod, or may be configured by three or more support rods. The same applies to the right support bar B1R.
  • An extended retaining plate 42 is attached to an end of the retaining plate 41.
  • the extended retaining plate 42 is attached to the end of the retaining plate 41 via the hinge H1 so as to be rotatable in the traveling direction.
  • the extension retaining plate 42 includes a left extension retaining plate 42L and a right extension retaining plate 42R.
  • the left extension retaining plate 42L is rotatably attached to the left (+ Y side) end of the left retaining plate 41L via the hinge H1L.
  • the right extension retaining plate 42R is rotatably attached to the right ( ⁇ Y side) end of the right retaining plate 41R via the hinge H1R.
  • a support rod B2 as an extension support rod is disposed between the extension retaining plate 42 and the tractor 1.
  • the support bar B2 is in an unfolded state in which the extended retaining plate 42 extends in the vehicle width direction along the screw SC, or in a state in which the extended retaining plate 42 is folded so as to be substantially perpendicular to the screw SC. It is configured to be able to maintain a certain folded state.
  • the support bar B2 is configured to prevent the extended retaining plate 42 from being folded toward the tractor 1 by being pushed by the paving material PV in the deployed state.
  • 1A and 1B show the extended retaining plate 42 in a folded state.
  • the support bar B2 includes a left support bar B2L and a right support bar B2R.
  • the left support bar B2L When the left extension retaining plate 42L is in the folded state, the left support bar B2L has one end attached to the tractor 1 and the other end attached to the left extension retaining plate 42L.
  • the left extension retaining plate 42L When the left extension retaining plate 42L is in the deployed state, one end is attached to the left support bar B1L, and the other end is attached to the left extension retaining plate 42L.
  • the left support bar B2L is configured by only one support bar, but may be configured by two support bars, or may be configured by three or more support bars. The same applies to the right support bar B2R.
  • a mold board 43 is attached to the front of the screed 3.
  • the mold board 43 is configured so that the amount of the pavement material PV staying in front of the screed 3 can be adjusted.
  • the pavement material PV reaches below the screed 3 through a gap between the lower end of the mold board 43 and the roadbed RB.
  • the mold board 43 is configured to expand and contract together with the rear-side expandable screed 31.
  • the mold board 43 includes a right telescopic mold board 43R attached in front of the right rear telescopic screed 31R and a left telescopic mold board 43L mounted in front of the left rear telescopic screed 31L.
  • the left telescopic mold board 43L is configured so that the height can be adjusted in the Z-axis direction regardless of the left side plate 40L and the left rear telescopic screed 31L. By moving the left telescopic mold board 43L up and down, it is possible to adjust the amount of pavement material staying in front of the left rear telescopic screed 31L. The same applies to the right telescopic mold board 43R.
  • Step 32 is attached to the rear of screed 3.
  • Step 32 is a step ladder available to the operator.
  • the step 32 includes a central step 32C attached to the rear of the front fixed screed 30, a right step 32R attached to the rear of the right rear telescopic screed 31R, and a rear of the left rear telescopic screed 31L. And attached left step 32L.
  • FIG. 2 shows a state when the rear part of the asphalt finisher 100 is viewed from above, and illustration of the front part of the asphalt finisher 100 is omitted.
  • FIG. 2 shows a state in which the right rear telescopic screed 31R is stepwise extended to the right in accordance with an increase in the road width when the asphalt finisher 100 moves upward from the bottom of the figure.
  • the lowermost figure shows the folded state of the right extension retaining plate 42R
  • the middle figure shows the first developed state which is one of the developed states of the right extended retaining plate 42R
  • the uppermost figure shows It shows a second deployed state, which is another one of the deployed states of the right extension retaining plate 42R.
  • the left extension retaining plate 42L is in a folded state in all three figures.
  • FIGS. 3A to 3C are perspective views of the periphery of the right screw SCR showing the three states of the right extension retaining plate 42R.
  • FIG. 3A shows the folded state of the right extension retaining plate 42R, and corresponds to the lowermost figure in FIG.
  • FIG. 3B shows the first extended state of the right extension retaining plate 42R, and corresponds to the central figure in FIG.
  • FIG. 3C shows a second developed state of the right extension retaining plate 42R, and corresponds to the uppermost figure in FIG. Since the structure related to the right extension retaining plate 42R and the structure related to the left extension retaining plate 42L are symmetrical, the following description is similarly applied to the structure related to the left extension retaining plate 42L. .
  • the operator removes one end of the right support bar B2R fixed to the right side of the tractor 1 from the tractor 1. Then, the operator rotates the right extension retaining plate 42R at the hinge H1R in the direction indicated by the arrow AR1 in FIG. 3A. Thereafter, the operator fixes one end of the right support bar B2R to the right support bar B1Rb, as shown in FIG. 3B. The operator may fix one end of the right support bar B2R to the right support bar B1Ra.
  • the right support bar B1Ra is a support bar located on the upper side of the two support bars constituting the right support bar B1R
  • the right support bar B1Rb is one of the two support bars constituting the right support bar B1R.
  • one end of the right support bar B1R is rotatably attached to the right side of the tractor 1 via the attachment C1R, and the other end of the right support bar B1R is It is rotatably attached to a reinforcing pillar portion CM which is a part of a screw holding portion SH (described later) in the right retaining plate 41R via C2R.
  • a reinforcing pillar portion CM which is a part of a screw holding portion SH (described later) in the right retaining plate 41R via C2R.
  • one end of the right support bar B1Ra is attached to the right side of the tractor 1 via a fixture C1Ra so as to be rotatable around an axis, and the other end of the right support bar B1Ra is attached.
  • a connecting member FE is attached to one end of the right support bar B2R.
  • the connecting member FE is configured to be connectable to each of the right side portion of the tractor 1 and the right support bar B1R.
  • connection member FE is configured to be connectable to each of the right side portion of the tractor 1 and the right support bar B1R via a clamp mechanism.
  • the connecting member FE is connected to the right support bar B2R via a universal joint such as a ball joint.
  • connection member FE may be connected to the right support bar B2R via a pin joint, or may be rigidly connected to the right support bar B2R.
  • the other end of the right support bar B2R is attached via a fixture C3R to a distal plate 42D (described later) of the right extension retaining plate 42R so as to be rotatable around a vertical axis.
  • the right retaining plate 41R has a reinforcing rib RF1 on the surface (+ X side) opposite to the surface facing the right screw SCR, as shown in FIG. 3A.
  • the right retaining plate 41R is detachably attached to the right side of the tractor 1 by a bolt as a fastening member BT1.
  • a guard rail GR1 is detachably attached to the right retaining plate 41R. The guardrail GR1 prevents the object from getting caught in the right screw SCR.
  • the rotation axis of the right screw SCR is rotatably supported by the screw holding part SH of the right retaining plate 41R.
  • the screw holding part SH is reinforced by a reinforcing pillar CM so as to be able to support the rotating shaft of the right screw SCR which is a heavy object.
  • the reinforcing pillars CM are formed of a metal plate so as to form a rectangular tube.
  • the right extension retaining plate 42R is rotatably attached to an end of the right retaining plate 41R via a hinge H1R, as shown in FIG. 3B. Specifically, the right extension retaining plate 42R is detachably attached to an end of the right retaining plate 41R by a bolt as a fastening member BT2. Further, as shown in FIG. 3C, the right extension retaining plate 42R has a reinforcing rib RF2 on a surface (+ X side) opposite to a surface facing the right screw SCR.
  • the operator When the operator further extends the right rear telescopic screed 31R and the right telescopic mold board 43R to the right from the state shown by the central figure in FIG. 2 to the state shown by the uppermost figure, the operator Connect the extension screw ESC2.
  • the length of the extension screw ESC2 is the same as the length of the extension screw ESC1.
  • the operator may connect another extension screw longer than the extension screw ESC1 to the right screw SCR.
  • the operator loosens the tightening of the connecting member FE at one end of the right support bar B2R fixed to the right support bar B1Rb. This is for sliding the connecting member FE along the right support bar B1Rb in the direction indicated by the arrow AR2 in FIG. 3B. Then, the distal plate 42D is slid in the direction indicated by the arrow AR3 in FIG. 3B with respect to the proximal plate 42P.
  • the right extension retaining plate 42R has a slide-type telescopic structure.
  • the proximal plate 42P and the distal plate 42D are components that constitute a sliding telescopic structure.
  • the distal plate 42D is slidably disposed on the front side (+ X side) of the proximal plate 42P.
  • the other end of the right support bar B2R is rotatably attached to the distal plate 42D via an attachment C3R.
  • the right extension retaining plate 42R may have another telescopic structure such as a telescopic telescopic structure or a foldable telescopic structure.
  • FIG. 3B shows a contracted state in which the distal plate 42D is retracted inside the proximal plate 42P
  • FIG. 3C shows an extended state in which the distal plate 42D is pushed out of the proximal plate 42P.
  • FIG. 3B shows a state where the guard rail GR2 is attached to the right extension retaining plate 42R
  • FIG. 3C shows a state where the guard rails GR2 and GR3 are attached to the right extension retaining plate 42R.
  • FIG. 3C shows a state where the guard rail GR2 is attached to the proximal plate 42P and the guard rail GR3 is attached to the distal plate 42D.
  • the operator can use the right support bar B2R as an extension support bar. That is, only by changing the fixed position of one end of the right support bar B2R, the right support bar B2R can be used as it is as the extension support bar. Therefore, the operator can easily switch the state of the right extension retaining plate 42R between the folded state and the expanded state.
  • FIG. 4 is a perspective view of the periphery of the right screw SCR showing the second extended state of the right extension retaining plate 42R, and corresponds to FIG. 3C. Since the structure related to the right extension retaining plate 42R and the structure related to the left extension retaining plate 42L are symmetrical, the following description is similarly applied to the structure related to the left extension retaining plate 42L. .
  • the right support bar B2AR of FIG. 4 has a variable length structure and is different from the right support bar B2R of FIGS. 3A to 3C having a fixed length structure, but is common in other points. Therefore, description of common parts is omitted, and different parts will be described in detail.
  • Right support rod B2AR is mainly composed of outer cylinder member EC, inner cylinder member UC, lock pin LP, and retaining pin RP.
  • the outer cylinder member EC has one end E1 rotatably attached to the right support bar B1R via a connecting member FE, and the other end E2 is configured to receive the inner cylinder member UC.
  • One end of the outer cylinder member EC may be rotatably attached to the right side of the tractor 1. Further, a plurality of radial through holes EH are formed in the outer cylinder member EC.
  • the inner cylinder member UC has one end E3 received in the outer cylinder member EC and the other end E4 rotatably attached to the right extension retaining plate 42R. Further, a plurality of radial through holes UH are formed in the inner cylindrical member UC. In the example of FIG. 4, the plurality of radial through holes UH are formed so as to have the same interval as the interval between the plurality of radial through holes EH formed in the outer cylinder member EC.
  • the lock pin LP fixes the outer cylinder member EC and the inner cylinder member UC so as to be relatively immovable.
  • the lock pin LP is configured to have an L shape.
  • a through hole for receiving the retaining pin RP is formed at the tip end.
  • the retaining pin RP prevents the lock pin LP inserted into the radial through hole EH and the radial through hole UH from falling out of the radial through hole EH and the radial through hole UH.
  • the operator inserts the inner cylinder member UC into the outer cylinder member EC, and adjusts the position of the radial through hole EH to the position of the radial through hole UH where the right support bar B2AR has a desired length.
  • the length of the right support bar B2AR corresponds to the distance between one end E1 of the outer cylinder member EC and the other end E4 of the inner cylinder member UC.
  • the operator inserts the lock pin LP so as to penetrate the aligned radial through hole EH and the radial through hole UH, and attaches the retaining pin RP to the tip of the lock pin LP.
  • FIG. 4 shows a state in which the outer cylinder member EC and the inner cylinder member UC are fixed by two lock pins LP.
  • the worker can move the right support rod B2AR in a state where one end E1 of the right support rod B2Rb is attached to the right support rod B1Rb, and the other end E4 of the right support rod B2AR is attached to the right extension retaining plate 42R.
  • the length of the support bar B2AR can be expanded and contracted. Therefore, the operator can easily switch the state of the right extension retaining plate 42R between the folded state and the expanded state.
  • the asphalt finisher 100 includes the right support bar B2AR whose length can be manually adjusted.
  • the asphalt finisher 100 may include a right support bar whose length is automatically adjusted by an actuator.
  • the asphalt finisher 100 may include an actuator that rotates the extended retaining plate 42.
  • the support bar B2 may be configured by a hydraulic cylinder.
  • FIG. 5 is a top view of the asphalt finisher 100 according to another embodiment of the present invention.
  • the asphalt finisher 100 of FIG. 5 is different from the asphalt finisher 100 of FIG. 1 in that it has a mechanism for expanding and contracting each of the screw SC and the extension retaining plate 42, but is common in other respects. Therefore, description of common parts is omitted, and different parts will be described in detail.
  • the screw SC includes a central fixed screw SCC and a telescopic screw ESC.
  • the telescopic screw ESC is expanded and contracted in the vehicle width direction by the screw telescopic cylinder 29.
  • the telescopic screw ESC includes a left telescopic screw ESCL and a right telescopic screw ESCR, and the screw telescopic cylinder 29 includes a left screw telescopic cylinder 29L and a right screw telescopic cylinder 29R.
  • the left telescopic screw ESCL is expanded and contracted in the vehicle width direction by a left screw telescopic cylinder 29L
  • the right telescopic screw ESCR is telescopically expanded and contracted by a right screw telescopic cylinder 29R.
  • the extension retaining plate 42 is extended and contracted in the vehicle width direction by a plate extension cylinder 45 which also functions as an extension support rod. Therefore, in the example of FIG. 5, the support bar B2 is omitted.
  • the plate telescopic cylinder 45 includes a left plate telescopic cylinder 45L and a right plate telescopic cylinder 45R.
  • the left extension retaining plate 42L is rotated by a left plate telescopic cylinder 45L, which also functions as an extension support rod, to switch between a folded state and an expanded state.
  • the right extension retaining plate 42R is rotated by a right plate telescopic cylinder 45R, which also functions as an extension support rod, to switch between a folded state and an expanded state.
  • the controller 50 is configured to synchronize the movements of the screed telescopic cylinder 26, the screw telescopic cylinder 29, and the plate telescopic cylinder 45. Specifically, when extending the right screed telescopic cylinder 26R to extend the right rear telescopic screed 31R, the controller 50 extends each of the right screw telescopic cylinder 29R and the right plate telescopic cylinder 45R. Further, the controller 50 contracts each of the right screw telescopic cylinder 29R and the right plate telescopic cylinder 45R when contracting the right screed telescopic cylinder 26R to contract the right rear telescopic screed 31R. The same applies to the case where the left rear expandable screed 31L is expanded and contracted.
  • the controller 50 is configured to autonomously control each of the screed telescopic cylinder 26, the screw telescopic cylinder 29, and the plate telescopic cylinder 45 according to a change in the width of the roadbed RB detected based on the output of the imaging device or the like. It may be.
  • the asphalt finisher 100 can automatically extend and retract the extendable screw ESC and automatically rotate the extended retaining plate 42 in synchronization with the extension and contraction of the rear extendable screed 31.
  • the asphalt finisher 100 includes the tractor 1, the screed 3, the screw SC disposed in front of the screed 3, and the body disposed in front of the screw SC and attached to the tractor 1.
  • a retaining plate 41 serving as a side retaining plate
  • a support bar B1 serving as an aircraft-side support bar disposed between the tractor 1 and the retaining plate 41 in front of the retaining plate 41
  • a retainer plate 41 serving as an aircraft-side support bar disposed between the tractor 1 and the retaining plate 41 in front of the retaining plate 41
  • An extension retaining plate 42 is movably mounted, and a support rod B2 as an extension support rod disposed between the tractor 1 and the extension retaining plate 42 in front of the extension retaining plate 42. With this configuration, the extension of the retaining plate 41 is more easily performed. Therefore, the asphalt finisher 100 can improve workability at a work site.
  • the asphalt finisher 100 facilitates the development of the extension retaining plate 42, so that, for example, the pavement can be added without extending the extension retaining plate despite the extension of the rear telescopic screed 31. This can be prevented from being performed. This is because the operator does not need to perform a complicated additional work as in the related art, so that the extension retaining plate 42 can be deployed without hesitation. As a result, the asphalt finisher 100 can improve the work efficiency of pavement work. If the extension retaining plate is not added, the pavement material PV will spread forward rather than in the vehicle width direction, and as a result, it will be necessary to manually spread the pavement material PV in the vehicle width direction. It is.
  • the asphalt finisher 100 can enhance the safety of the worker regarding the pavement work.
  • One end of the support bar B2 is typically fixed to the tractor 1 or the support bar B1, and the other end of the support bar B2 is fixed to the extension retaining plate.
  • the fixed position of one end of the support bar B2 is set differently when the extended retaining plate 42 is folded and when the extended retaining plate 42 is expanded.
  • one end of the right support bar B2R when the right extension retaining plate 42R is in a folded state may be fixed to the right side of the tractor 1 as shown in FIG. 3A.
  • one end of the right support bar B2R when the right extension retaining plate 42R is in the first deployed state may be fixed to a portion near the right end of the right support bar B1Rb as shown in FIG. 3B.
  • one end of the right support bar B2R when the right extension retaining plate 42R is in the second deployed state may be fixed to a portion near the center of the right support bar B1Rb as shown in FIG. 3C.
  • the right support bar B2R having the fixed length structure can appropriately function as a support bar regardless of whether the right extension retaining plate 42R is in the folded state, the first expanded state, or the second expanded state. .
  • the support bar B2 may have a variable length structure.
  • the support bar B2 may have a telescopic structure as shown in FIG. 4, for example. With this configuration, even when the state of the extension retaining plate 42 is switched from the folded state to the expanded state, the operator does not remove one end of the support bar B2 from the support bar B1 and can extend the support bar B2. Available as is. That is, the operator can use the support bar B2 as an extended support bar without changing the length of the support bar B2.
  • the extension retaining plate 42 may have a slide-type telescopic structure. Specifically, the extension retaining plate 42 is configured to allow the distal plate 42D nested within the proximal plate 42P to be pushed out of the proximal plate 42P, as shown in FIG. 3C. Is also good. With this configuration, the operator can further extend the extension retaining plate 42 as necessary.
  • the asphalt finisher 100 may include an actuator for rotating the extended retaining plate 42.
  • the actuator may be a hydraulic cylinder such as a plate telescopic cylinder 45 shown in FIG. 5, or may be an electric cylinder. Further, a hydraulic motor or an electric motor may be used.
  • the asphalt finisher 100 may include an actuator that expands and contracts the screed 3.
  • the actuator may be a hydraulic cylinder such as the screed telescopic cylinder 26 shown in FIG. 1B, or may be an electric cylinder. Further, a hydraulic motor or an electric motor may be used.
  • the controller 50 may be configured to be able to control a first actuator that rotates the extended retaining plate 42 and a second actuator that expands and contracts the screed 3.
  • the controller 50 may be configured to synchronize the movement of the first actuator with the movement of the second actuator.
  • the controller 50 may be configured to synchronize the movement of the screed telescopic cylinder 26 with the motion of the plate telescopic cylinder 45.
  • the right support bar B1R as the body-side support bar includes a right support bar B1Ra as a first body-side support bar, and a right support bar B1Rb as a second body-side support bar.
  • the asphalt finisher 100 is fixed to the right retaining plate 14R so that the distance between one end (attachment tool C2Ra) of the right support bar B1Ra fixed to the right retaining plate 41R as the fuselage side retaining plate and the tractor 1 is fixed to the right retaining plate 14R.
  • the right support bar B1Rb is configured to have a distance equal to the distance between one end of the right support bar B1Rb (the mounting tool C2Rb) and the tractor 1. The same applies to the left support bar B1L. With this configuration, the support bar B1 can support the retaining plate 41 in a well-balanced manner.
  • the support bar B2 as the extension support bar is desirably disposed so as to be at the same height as the support bar B1 as the fuselage-side support bar.
  • the right support bar B2R as the extension support bar is desirably disposed so as to have the same height in the vertical direction as either the right support bar B1Ra or the right support bar B1Rb.
  • the right support bar B2R is arranged so as to be at the same height as the right support bar B1Rb.
  • the attachment C3R is disposed on the front (+ X side) surface of the distal plate 42D so as to have the same height as each of the attachments C1Rb and C2Rb.
  • both the support bar B1 and the support bar B2 extend horizontally.
  • the support bar B1 can support the support bar B2 in a well-balanced manner, and thus can support the extended retaining plate 42 in a well-balanced manner.
  • the present invention does not exclude a configuration in which the height of one end of the extension support rod is different from the height of the other end.
  • the extended retaining plate 42 includes the distal plate 42D and the proximal plate 42P that constitute a sliding telescopic structure.
  • the distal plate 42D may be omitted.
  • the retaining plate 41 may have a slide-type telescopic structure, similarly to the extended retaining plate 42.
  • the support bar B1 may have a variable length structure.

Landscapes

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

Abstract

Un finisseur d'asphalte (100) comprend : un tracteur (1); une poutre lisseuse (3); une vis (SC) qui est disposée devant la poutre lisseuse (3); une plaque de retenue (41) qui est disposée devant la vis (SC) et qui est montée sur le tracteur (1); une tige de support (B1) qui est disposée entre le tracteur (1) et la plaque de retenue (41) à l'avant de la plaque de retenue (41); une plaque de retenue d'extension (42) qui est montée sur la plaque de retenue (41) de manière à tourner librement; et une tige de support (B2) qui est disposée entre le tracteur (1) et la plaque de retenue d'extension (42) à l'avant de la plaque de retenue d'extension (42).
PCT/JP2019/026362 2018-07-03 2019-07-02 Finisseur d'asphalte WO2020009123A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2020529014A JPWO2020009123A1 (ja) 2018-07-03 2019-07-02 アスファルトフィニッシャ
CN201980044323.1A CN112368445A (zh) 2018-07-03 2019-07-02 沥青滚平机
EP19829871.3A EP3819430A4 (fr) 2018-07-03 2019-07-02 Finisseur d'asphalte

Applications Claiming Priority (2)

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JP2018126910 2018-07-03
JP2018-126910 2018-07-03

Publications (1)

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WO2020009123A1 true WO2020009123A1 (fr) 2020-01-09

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PCT/JP2019/026362 WO2020009123A1 (fr) 2018-07-03 2019-07-02 Finisseur d'asphalte

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EP (1) EP3819430A4 (fr)
JP (1) JPWO2020009123A1 (fr)
CN (1) CN112368445A (fr)
WO (1) WO2020009123A1 (fr)

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CN114381990A (zh) * 2020-10-22 2022-04-22 约瑟夫福格勒公司 用于道路整修机的通道板装置

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JP2023151461A (ja) * 2022-03-31 2023-10-16 住友重機械工業株式会社 アスファルトフィニッシャ

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JPH1088515A (ja) * 1996-09-12 1998-04-07 Shin Caterpillar Mitsubishi Ltd 舗装用建設機械におけるガード構造
EP1120495A1 (fr) * 2000-01-25 2001-08-01 Joseph Vögele AG Finisseuse
JP2004300855A (ja) * 2003-03-31 2004-10-28 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd 道路舗装機械のリテイニングプレート装置
JP2010077799A (ja) * 2008-09-26 2010-04-08 Joseph Voegele Ag 道路舗装機
JP2016108879A (ja) 2014-12-09 2016-06-20 住友建機株式会社 スクリュサポート構造及びスクリュサポート構造を搭載する道路機械
JP2018126910A (ja) 2017-02-08 2018-08-16 株式会社キャステム 情報隠蔽板付き郵便物及びその製造方法

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CN114381990A (zh) * 2020-10-22 2022-04-22 约瑟夫福格勒公司 用于道路整修机的通道板装置
EP3988714A1 (fr) 2020-10-22 2022-04-27 Joseph Vögele AG Système de tôles de canal pour un finisseur de route
JP2022068865A (ja) * 2020-10-22 2022-05-10 ヨゼフ フェゲーレ アーゲー 道路仕上げ機のチャネルプレート構成
JP7291189B2 (ja) 2020-10-22 2023-06-14 ヨゼフ フェゲーレ アーゲー 道路仕上げ機のチャネルプレート構成

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JPWO2020009123A1 (ja) 2021-07-08
EP3819430A1 (fr) 2021-05-12
EP3819430A4 (fr) 2021-08-04
CN112368445A (zh) 2021-02-12

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