WO2014136254A1 - Véhicule de travail - Google Patents

Véhicule de travail Download PDF

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Publication number
WO2014136254A1
WO2014136254A1 PCT/JP2013/056421 JP2013056421W WO2014136254A1 WO 2014136254 A1 WO2014136254 A1 WO 2014136254A1 JP 2013056421 W JP2013056421 W JP 2013056421W WO 2014136254 A1 WO2014136254 A1 WO 2014136254A1
Authority
WO
WIPO (PCT)
Prior art keywords
ceiling
cab
mount member
antenna
ceiling beam
Prior art date
Application number
PCT/JP2013/056421
Other languages
English (en)
Japanese (ja)
Inventor
松本　潤
正道 宮崎
佐藤　勝
浩史 永見
池田　健
仁 片柳
治 黒柳
隆宏 下條
Original Assignee
株式会社小松製作所
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 株式会社小松製作所 filed Critical 株式会社小松製作所
Priority to PCT/JP2013/056421 priority Critical patent/WO2014136254A1/fr
Priority to JP2013528451A priority patent/JP5383957B1/ja
Priority to US14/004,724 priority patent/US20140252803A1/en
Priority to CN201380001023.8A priority patent/CN104220676A/zh
Publication of WO2014136254A1 publication Critical patent/WO2014136254A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E02F9/163—Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure [FOPS]; Roll over protection structure [ROPS]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/35—Constructional details or hardware or software details of the signal processing chain
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk

Definitions

  • the present invention relates to a work vehicle, and more particularly, to a work vehicle including a cab on which an operator is boarded.
  • a GNSS antenna is installed on the work machine, so if a GNSS antenna is installed on the work machine, the positioning accuracy is lowered.
  • the pole may vibrate with the vibration of the work implement, or the antenna wire connected to the GNSS antenna may come into contact with the earth and sand. Therefore, a technique has been proposed in which a GNSS antenna is installed on the roof of a cab on which an operator rides.
  • the ceiling surface of the cab is formed by fixing a flat ceiling plate on a beam formed in a frame shape.
  • the ceiling plate is curved upwardly in a convex shape in order to prevent water from accumulating on the upper surface and forming a water pool.
  • the present invention has been made in view of the above-described problems, and the object thereof is to enable a positioning antenna to be mounted on a cab ceiling plate at an accurate position and posture while suppressing a decrease in measurement accuracy due to vibration. It is to provide a working vehicle.
  • the work vehicle of the present invention includes a work machine and a cab on which an operator who operates the work machine is boarded.
  • the cab includes a pair of left and right ceiling beams disposed on both upper sides of the cab, and a ceiling plate supported by each of the pair of ceiling beams.
  • the work vehicle further includes a first mount member, a second mount member, and a positioning antenna.
  • the first mount member has a left side member fixed to the left ceiling beam and a right side member fixed to the right ceiling beam.
  • the second mount member is disposed on the ceiling plate across the left side member and the right side member.
  • the positioning antenna is mounted on the second mount member.
  • the positioning antenna is attached to the ceiling beam of the cab constituting the strong structure via the first mount member and the second mount member, the positioning antenna And the positioning antenna can be mounted on the ceiling plate at an accurate position and posture.
  • the ceiling board is curved in a convex shape upward.
  • the shape of the ceiling plate affects the positioning antenna positioning. It can be avoided. Therefore, the positioning antenna can be more reliably mounted on the ceiling board with an accurate position and posture.
  • a gap is formed between the second mount member and the ceiling plate.
  • the above work vehicle further includes an antenna wire connected to the positioning antenna.
  • a part of the antenna line is disposed in the gap between the second mount member and the ceiling plate. In this way, a part of the antenna line is disposed below the second mount member and cannot be visually recognized from the outside, so that the beauty of the work vehicle can be improved.
  • the left side member and the right side member are welded to the upper surface of the ceiling beam. In this way, when the left member and the right member are fixed to the ceiling beam, it is not necessary to perform processing such as drilling the ceiling beam. Therefore, the strength of the ceiling beam can be maintained, and the strength reduction of the cab can be reliably prevented.
  • the cab further includes a width direction ceiling beam extending in the width direction of the work vehicle at an upper portion of the cab.
  • the first mount member further includes a width direction member fixed to the width direction ceiling beam.
  • the second mount member is supported by the width direction member. If it does in this way, since the 2nd mount member is supported by the left side member, the right side member, and the width direction member, the 2nd mount member can be arranged on a ceiling board more stably.
  • the second mount member has an antenna installation surface.
  • the positioning antenna is mounted on the antenna installation surface.
  • the antenna installation surface has a planar shape. This makes it easier to mount the positioning antenna on the antenna installation surface with an accurate position and posture.
  • the positioning antenna can be mounted on the cab ceiling plate at an accurate position and posture while suppressing a decrease in measurement accuracy due to vibration.
  • FIG. 1 is an exploded perspective view schematically showing a configuration of a work vehicle in an embodiment of the present invention. It is a perspective view which shows roughly the structure of the cab of the working vehicle in one embodiment of this invention.
  • FIG. 4 is a schematic cross-sectional view of the ceiling board taken along line IV-IV in FIG. 3. It is a perspective view which shows roughly the structure of the mounting apparatus for positioning antennas in one embodiment of this invention. It is a disassembled perspective view which shows roughly the structure of the mounting apparatus for positioning antennas in one embodiment of this invention. It is a perspective view showing roughly the state where the 1st mount member was fixed to the ceiling part of a cab.
  • FIG. 1 is an exploded perspective view schematically showing a configuration of a work vehicle in an embodiment of the present invention. It is a perspective view which shows roughly the structure of the cab of the working vehicle in one embodiment of this invention.
  • FIG. 4 is a schematic cross-sectional view of the ceiling board taken along line IV-IV in FIG. 3.
  • It is
  • FIG. 7 is a schematic cross-sectional view of the mount device taken along line VIII-VIII in FIG. 6.
  • FIG. 8 is a schematic cross-sectional view of the first mount member along the line IX-IX in FIG. 7.
  • FIG. 8 is a schematic cross-sectional view of the first mount member taken along line XX in FIG. 7. It is a bottom view which shows the structure of a 2nd mount member roughly.
  • a bulldozer 30 that is a work vehicle of the present embodiment includes a cab 1, an engine room 34, a hydraulic oil tank module 35, a pair of truck frame modules 37, and a soil discharge plate 38. It is mainly equipped with.
  • the cab 1 is a box-shaped structure in which an indoor space into which an operator OP that operates the bulldozer 30 enters is formed.
  • the bulldozer 30 further includes a vehicle frame 31, an engine 32, an engine cooling module 33, and a fuel tank module 36.
  • the vehicle frame 31 has a front end and a rear end.
  • the cab 1 is mounted on the vehicle frame 31 between the front end and the rear end of the vehicle frame 31.
  • the cab 1 is provided with a seat for an operator OP to sit on, a steering mechanism such as a pedal and a lever, and an instrument panel.
  • the operator OP gets on the cab 1 and moves the bulldozer 30 and operates the earth removal plate 38.
  • the left direction is the left side of the operator OP
  • the right side is the right side
  • the forward direction is the front side
  • the rear direction is the rear side. This is called the rear side.
  • the engine 32 is attached to the vehicle frame 31 on the front end side of the vehicle frame 31 relative to the cab 1.
  • the engine room 34 covers the engine 32.
  • the cab 1 is disposed behind the engine 32 covered with the engine room 34.
  • the hydraulic oil tank module 35 is for storing hydraulic oil for operating a working machine such as the earth discharging plate 38 of the bulldozer 30, and is disposed on one side of the cab 1.
  • the fuel tank module 36 is for storing fuel supplied to the engine 32, and is disposed on the other side of the cab 1.
  • the cooling module 33 is for cooling the engine 32 and the like, and is attached to the vehicle frame 31 at the rear end of the vehicle frame 31.
  • the cooling fan of the cooling module 33 can be electrically or hydraulically driven independently of the engine 32 by an electric motor or a hydraulic motor. In a preferred configuration, the fan speed is variable using hydraulic drive.
  • the cooling module 33 is disposed behind the cab 1 and between the rear end portion of the hydraulic oil tank module 35 and the rear end portion of the fuel tank module 36.
  • the pair of track frame modules 37 are disposed on the left and right sides of the vehicle frame 31, respectively.
  • the earth removing plate 38 is disposed in front of the front end of the vehicle frame 31.
  • the operator OP who has boarded the cab 1 operates the earth discharging plate 38 by using the steering mechanism, thereby performing operations such as earth excavation and leveling.
  • the positioning antenna 50 for measuring the current position of the work implement is attached to the ceiling portion of the cab 1.
  • the cab 1 has a ceiling plate 2 described later, and the positioning antenna 50 is disposed above the ceiling plate 2.
  • the positioning antenna 50 is mounted on the upper surface side of the ceiling portion of the cab 1 using a first mount member 10 and a second mount member 20 described later.
  • the positioning antenna 50 receives radio waves including navigation signals from the satellites 121 and 122.
  • a controller and a display are arranged in the cab 1.
  • the controller calculates the current position of the positioning antenna 50 based on the signal received by the positioning antenna 50, and further calculates the current position of the earth removal plate 38 accurately and precisely based on the calculation result.
  • the display is configured so that the current position of the earth removal plate 38 is updated and displayed in real time, and the operator OP boarding the cab 1 can always check the working state.
  • the cab 1 includes a plurality of pillars.
  • the plurality of pillars are arranged such that the longitudinal direction thereof extends in the vertical direction.
  • the plurality of pillars include a pair of front pillars 3 disposed on the front side of the cab 1, a pair of rear pillars 5 disposed on the rear side of the cab 1, and a pair of centers disposed in the center in the front-rear direction of the cab 1.
  • the pillar 4 is included.
  • the front pillar 3, the center pillar 4, and the rear pillar 5 are arranged in this order from the front to the rear of the cab 1.
  • the lower ends of the pair of center pillars 4 and the pair of rear pillars 5 are welded to a floor plate (not shown).
  • the cab 1 also includes a left ceiling beam 7 connected to the upper ends of the left center pillar 4 and the left rear pillar 5, and a right ceiling beam 8 connected to the upper ends of the right center pillar 4 and the right rear pillar 5. It has.
  • the cab 1 includes a pair of left and right ceiling beams arranged on the upper sides of both sides of the cab 1.
  • the left ceiling beam 7 and the right ceiling beam 8 are arranged so that their longitudinal directions extend in the front-rear direction.
  • the left ceiling beam 7 is supported by the left center pillar 4 and the rear pillar 5.
  • the right ceiling beam 8 is supported by the right center pillar 4 and the rear pillar 5.
  • the cab 1 is also provided with a width direction ceiling beam 9 a connected to the upper ends of each of the pair of rear pillars 5.
  • the width direction ceiling beam 9 a is arranged so that its longitudinal direction extends in the width direction (left-right direction) of the cab 1. Both end portions of the width direction ceiling beam 9a are respectively connected to the rear end portions of the left ceiling beam 7 and the right ceiling beam 8, and are fixed by welding.
  • the width direction ceiling beam 9 a is disposed on the rear side of the upper portion of the cab 1.
  • the cab 1 is also provided with a width direction ceiling beam 9b connected to the upper ends of each of the pair of center pillars 4.
  • the width direction ceiling beam 9b is arranged so that its longitudinal direction extends in the width direction (left-right direction) of the cab 1.
  • Both end portions of the width direction ceiling beam 9b are respectively connected to the front end portions of the left ceiling beam 7 and the right ceiling beam 8, and are fixed by welding.
  • the left ceiling beam 7, the right ceiling beam 8, and the width direction ceiling beams 9 a and 9 b constitute a part of the structural material of the ceiling portion of the cab 1.
  • the cab 1 further includes a ceiling plate 2 formed of a plate material.
  • the ceiling board 2 forms the ceiling surface of the cab 1.
  • the ceiling plate 2 is supported by a left ceiling beam 7 and a right ceiling beam 8, which are a pair of left and right ceiling beams, and width direction ceiling beams 9a and 9b.
  • the left edge portion of the ceiling plate 2 is disposed on the left ceiling beam 7 and is welded and fixed to the upper surface of the left ceiling beam 7.
  • the right edge portion of the ceiling plate 2 is disposed on the right ceiling beam 8 and is welded and fixed to the upper surface of the right ceiling beam 8.
  • the edge part of the rear side of the ceiling board 2 is arrange
  • the cab 1 has a structure in which a pair of center pillars 4, a pair of rear pillars 5, a floor plate, left and right ceiling beams 7 and 8, and width direction ceiling beams 9a and 9b are joined by welding. ing. Further, this structure is a protective structure at the time of falling.
  • the overturn protection structure is a structure that protects the operator OP seated on the seat in the cab 1 with a seat belt when the work vehicle falls by increasing the structural strength.
  • FIG. 4 shows a IV-IV cross section in FIG.
  • ceiling plate 2 has an upper surface 2a and a lower surface 2b.
  • the upper surface 2a and the lower surface 2b constitute the main surface of the plate-like ceiling board 2.
  • the ceiling board 2 has an upwardly convex shape.
  • the ceiling board 2 has a shape in which a flat plate having a planar main surface is bent, and the left ceiling beam 7 and the right ceiling beam so that the convex shape formed by bending deformation of the flat plate faces upward. 8 and the top surfaces of the width direction ceiling beams 9a and 9b. Since the edge of the ceiling plate 2 curved upward is welded to the left ceiling beam 7, the right ceiling beam 8 and the width direction ceiling beams 9 a and 9 b, the ceiling plate 2 is fixed to the cab 1. The central portion protrudes upward from the edge.
  • the positioning antenna 50 includes an antenna body 51 having a receiving function and a support portion 52 that supports the antenna body 51 from below.
  • the support part 52 is attached to the second mount member 20.
  • the positioning antenna 50 is mounted on the central portion of the second mount member 20.
  • the positioning antenna 50 is provided so as to be removable from the second mount member 20 so that the height regulation during transportation of the bulldozer 30 can be observed.
  • a plurality of holes 25 and 26 are formed in the second mount member 20.
  • the holes 25 and 26 are formed through the second mount member 20 in the thickness direction.
  • the holes 25 are formed at the left and right edges of the second mount member 20.
  • the second mount member 20 is fixed to the left ceiling beam 7 and the right ceiling beam 8 using bolts that penetrate the hole 25 in the vertical direction.
  • the hole 26 is formed at the rear edge of the second mount member 20.
  • the 2nd mount member 20 is being fixed to the width direction ceiling beam 9a using the volt
  • the positioning antenna 50 and the second mount member 20 are integrally connected to the cab 1 when the bulldozer 30 is transported. It is also possible to remove from.
  • An antenna wire 56 is connected to the positioning antenna 50.
  • the antenna line 56 is an electric cable for supplying power to the positioning antenna 50 and performing data communication.
  • a through hole 27 that penetrates the second mount member 20 in the thickness direction is formed near the position where the positioning antenna 50 is mounted.
  • the through hole 27 has a diameter sufficiently larger than the outer diameter of the antenna wire 56.
  • the second mount member 20 has an antenna wire lead portion 28 provided above the left ceiling beam 7.
  • a through hole 29 is formed in the antenna wire lead portion 28.
  • the through hole 29 has substantially the same diameter as the outer diameter of the antenna wire 56.
  • a detent member 57 is provided around the end of the antenna wire 56 on the side connected to the positioning antenna 50.
  • the anti-rotation member 57 prevents the antenna line 56 from being separated from the positioning antenna 50 by preventing the nut for connecting the antenna line 56 to the positioning antenna 50 from being loosened.
  • a left side member 17 is fixed to the upper surface of the left ceiling beam 7. As with the left ceiling beam 7, the left member 17 is disposed such that its longitudinal direction extends in the front-rear direction.
  • a right member 18 is fixed to the upper surface of the right ceiling beam 8. The right member 18 is arranged so that its longitudinal direction extends in the front-rear direction, like the right ceiling beam 8.
  • the second mount member 20 is disposed on the ceiling plate 2 across the left side member 17 and the right side member 18 and is supported by both the left side member 17 and the right side member 18.
  • a plurality of tap holes 15 are formed in the left side member 17 and the right side member 18.
  • the tap hole 15 is formed at a position corresponding to the hole 25 formed in the second mount member 20.
  • the tap hole 15 is formed by being drilled downward from the upper surface of the left member 17 and the right member 18, and has a depth that does not penetrate the left member 17 and the right member 18.
  • the bolt passes through the hole 25 formed in the second mount member 20 and is fitted into the inner wall surface of the tap hole 15 by a screw action so that the left member 17 and the right member 18 and the second mount member 20 are bolts. It is fixed using.
  • a width direction member 19 is fixed to the upper surface of the width direction ceiling beam 9a.
  • the width direction member 19 is arranged so that its longitudinal direction extends in the width direction of the cab 1, similarly to the width direction ceiling beam 9 a.
  • the second mount member 20 has left and right side edges supported by the left side member 17 and right side member 18, and a rear side edge part supported by the width direction member 19.
  • the left side member 17, the right side member 18 and the width direction member 19 constitute the first mount member 10.
  • the first mount member 10 is interposed between the ceiling beam of the cab 1 and the second mount member 20.
  • a plurality of tap holes 16 are formed in the width direction member 19.
  • the tap hole 16 is formed at a position corresponding to the hole portion 26 formed in the second mount member 20.
  • the tap hole 16 is formed by being drilled downward from the upper surface of the width direction member 19, and has a depth that does not penetrate the width direction member 19.
  • the bolt passes through the hole 26 formed in the second mount member 20 and is fitted to the inner wall surface of the tap hole 16 by a screw action so that the width direction member 19 and the second mount member 20 are bolted. It is fixed.
  • the first mount member 10 is fixed to the ceiling beam of the cab 1, the second mount member 20 is fixed on the first mount member 10, and the positioning antenna 50 is mounted on the second mount member 20. . Accordingly, the positioning antenna 50 is mounted on the ceiling plate 2 of the cab 1 using the first mount member 10 and the second mount member 20.
  • the first mount member 10 and the second mount member 20 constitute a mount device for mounting the positioning antenna 50 on the ceiling plate 2.
  • FIG. 8 shows a VIII-VIII cross section in FIG.
  • ceiling plate 2 is directly fixed to the upper surfaces of left ceiling beam 7 and width direction ceiling beam 9a.
  • the second mount member 20 is supported by the left ceiling beam 7 and the right ceiling beam 8 with the left member 17 and a right member 18 (not shown in FIG. 8) interposed therebetween.
  • the second mount member 20 has a top plate portion 21.
  • the top plate portion 21 has a flat shape, and has an antenna installation surface 21a that is an upper main surface and a back surface 21b that is a lower main surface.
  • the antenna installation surface 21a forms the upper surface of the second mount member 20, and has a planar shape.
  • the positioning antenna 50 is mounted on the antenna installation surface 21a.
  • the second mount member 20 also has a lateral support member 24 that supports the top plate portion 21 from the back surface 21b side.
  • the lateral support member 24 is arranged such that its longitudinal direction extends in the width direction (left-right direction) of the cab 1. In the vertical direction, the lateral support member 24 is disposed above the left side member 17.
  • the top plate portion 21 is disposed on the upper side of the lateral support member 24.
  • a hollow gap G is formed between the back surface 21 b of the top plate portion 21 included in the second mount member 20 and the ceiling plate 2.
  • a gap G is formed between the second mount member 20 and the ceiling plate 2, and the second mount member 20 is disposed in a non-contact manner with respect to the ceiling plate 2.
  • the antenna main body 51 of the positioning antenna 50 is arranged on the antenna installation surface 21 a side with respect to the top plate portion 21.
  • the antenna line 56 connected to the antenna body 51 is inserted into a through hole 27 formed in the second mount member 20 and extends in the left-right direction of the cab 1 through the gap G below the second mount member 20. It arrange
  • FIG. A part of the antenna line 56 is disposed in the gap G between the top plate portion 21 of the second mount member 20 and the ceiling plate 2.
  • the antenna wire 56 is held in the gap G by a plurality of holding members provided on the back surface 21 b side of the top plate portion 21.
  • the antenna wire 56 extends from the gap G below the second mount member 20 to the side portion of the cab 1 through a through hole 29 formed in the antenna wire lead portion 28.
  • the ceiling board 2 is directly fixed to the upper surfaces of the left ceiling beam 7 and the width direction ceiling beam 9a.
  • the left ceiling beam 7 has a pipe structure having a hollow space, and has a complicated deformed pipe shape in which the cross-sectional shape is not round but curved. Therefore, the left ceiling beam 7 has higher cross-sectional rigidity than the ceiling plate 2.
  • the left member 17 is welded to the upper surface of the left ceiling beam 7 so that the left member 17 is fixed integrally with the left ceiling beam 7.
  • the left side member 17 protrudes upward from the upper surface of the left ceiling beam 7.
  • the left member 17 is directly fixed to the left ceiling beam 7 at a position on the upper surface of the left ceiling beam 7 that does not overlap the ceiling plate 2.
  • the left side member 17 is arranged on the left side with respect to the left edge of the ceiling board 2.
  • the upper surface of the left member 17 is disposed above the upper surface of the ceiling board 2 in the vertical direction.
  • the structure on the right side of the cab 1 is formed symmetrically with respect to a line extending in the vertical direction in FIG. That is, like the left ceiling beam 7 shown in FIG. 9, the right ceiling beam 8 has a pipe structure with a cross-sectional shape of a deformed tube. Like the left side member 17 shown in FIG. 9, the right side member 18 is welded and fixed integrally to the upper surface of the right ceiling beam 8, and the upper surface is disposed above the upper surface of the ceiling plate 2 in the vertical direction. ing.
  • the ceiling plate 2 is directly fixed to the upper surfaces of the width direction ceiling beam 9 a and the right side ceiling beam 8.
  • the width direction ceiling beam 9a has a pipe structure having a hollow space, and has a complicated deformed pipe shape in which the cross-sectional shape is not round but curved. Therefore, the width direction ceiling beam 9 a has higher cross-sectional rigidity than the ceiling plate 2.
  • the width direction member 19 is welded to the upper surface of the width direction ceiling beam 9a, whereby the width direction member 19 is fixed integrally with the width direction ceiling beam 9a.
  • the width direction member 19 protrudes upward with respect to the upper surface of the width direction ceiling beam 9a.
  • the width direction member 19 is directly fixed to the width direction ceiling beam 9a at a position on the upper surface of the width direction ceiling beam 9a so as not to overlap the ceiling plate 2.
  • the width direction member 19 is arrange
  • the upper surface of the width direction member 19 is disposed on the upper side in the vertical direction with respect to the upper surface of the ceiling board 2.
  • the second mount member 20 has the top plate portion 21 described above.
  • the top plate portion 21 has a rectangular shape in plan view.
  • a plate material forming the top plate portion 21 is bent at each side of the rectangle to form a fin portion 22.
  • the fin portion 22 constitutes the outer peripheral surface of the second mount member 20.
  • the second mount member 20 also has a pair of left and right longitudinal support members 23 extending in the front-rear direction of the cab 1 and a plurality of lateral support members 24 extending in the left-right direction of the cab 1.
  • a structure in which the vertical support member 23 and the horizontal support member 24 are integrally assembled in a frame shape is formed, and the top plate portion 21 is mounted on the structure.
  • the pair of longitudinal support members 23 are mounted on the left member 17 and the right member 18, respectively.
  • a hole 25 is formed so as to penetrate both the top plate portion 21 and the vertical support member 23.
  • the top plate portion 21 and the vertical support member 23 are formed using the left member 17 and the bolts. It is fixed to the right member 18.
  • the lateral support member 24 has a lateral support member 24 a mounted on the width direction member 19.
  • a hole 26 is formed so as to penetrate both the lateral support member 24a and the top plate portion 21, and as described above, the top plate portion 21 and the lateral support member 24a are formed by using a bolt in the width direction member. 19 is fixed.
  • the same number of horizontal support members 24 as the number of holes 25 formed in the vertical support member 23 are provided.
  • the horizontal support member 24 is attached to the vertical support member 23 at a position where the hole 25 is formed in the vertical support member 23.
  • the plurality of lateral support members 24 are arranged at equal intervals in the front-rear direction of the cab 1.
  • positioning antenna 50 is arranged on ceiling plate 2 of cab 1.
  • the positioning antenna 50 can be easily installed at the highest position of the bulldozer 30, so that the measurement accuracy of the current position of the work machine using the positioning antenna 50 can be improved. Can be improved.
  • the entire cab 1 is mounted on the apparatus vehicle body via a vibration absorbing device that absorbs vibration, vibration transmitted to the structural material of the cab 1 is reduced.
  • the positioning antenna 50 itself can be prevented from vibrating, and the deterioration of positioning accuracy due to vibration can be suppressed. Therefore, the positioning accuracy by the restraining positioning antenna 50 can be further improved, and damage to the positioning antenna 50 can be suppressed. be able to.
  • the positioning antenna 50 is mounted on the ceiling portion of the cab 1 with the first mount member 10 and the second mount member 20 interposed therebetween.
  • the first mount member 10 includes a left member 17 fixed to the left ceiling beam 7 and a right member 18 fixed to the right ceiling beam 8.
  • the left ceiling beam 7 and the right ceiling beam 8 constitute a welded structure material of the ceiling portion of the cab 1 and constitute a strong structure. Moreover, since the left ceiling beam 7 and the right ceiling beam 8 are a part of the protection structure when the cab 1 is overturned, a strong structure is configured also from that point.
  • the positioning antenna 50 is strong. It is supported by a ceiling beam that is a structure. Therefore, the vibration of the ceiling plate 2 can be prevented from changing the position of the positioning antenna 50, and the positioning antenna 50 can be accurately positioned with respect to the structural material of the cab 1. Therefore, since the positioning antenna 50 can be mounted on the ceiling board 2 with an accurate position and posture, the measurement accuracy of the positioning antenna 50 can be improved and the reliability of the positioning antenna 50 can be improved.
  • the ceiling board 2 may be curved in a convex shape upward.
  • the ceiling board 2 By making the ceiling board 2 have an upwardly convex structure, it is possible to avoid rainwater from staying on the upper surface 2a of the ceiling board 2 and being able to accumulate water. Since the positioning antenna 50 is mounted on the ceiling plate 2 with the first mount member 10 and the second mount member 20 interposed therebetween, the ceiling plate 2 having a shape protruding upward affects the arrangement of the positioning antenna 50. Can be prevented. Therefore, the positioning antenna 50 can be more reliably attached to the ceiling board 2 with an accurate position and posture.
  • a gap G may be formed between the second mount member 20 and the ceiling plate 2.
  • the second mount member 20 is disposed in non-contact with the ceiling plate 2, and the ceiling plate 2 can be prevented from interfering with the second mount member 20. Therefore, the positioning antenna 50 can be mounted on the second mount member 20 in a more accurate posture.
  • a part of the antenna line 56 connected to the positioning antenna 50 may be disposed in the gap G between the second mount member 20 and the ceiling plate 2. In this way, since the antenna line 56 can be protected from the external environment by the second mount member 20, the reliability of the antenna line 56 can be improved. Since a part of the antenna line 56 is disposed below the second mount member 20, the antenna line 56 covered with the second mount member 20 cannot be visually recognized from the outside. Thereby, the designability of the external appearance of a work vehicle can be improved.
  • the antenna wire 56 is held in the gap G on the back surface 21 b side of the top plate portion 21 of the second mount member 20. Accordingly, it is possible to avoid the antenna line 56 from vibrating and colliding with the ceiling plate 2 or the lateral support member 24 when the work vehicle is moved, and the reliability of the antenna line 56 can be improved.
  • the left member 17 and the right member 18 may be welded to the upper surfaces of the left ceiling beam 7 and the right ceiling beam 8, respectively. Since the left ceiling beam 7 and the right ceiling beam 8 are members constituting the structural material of the cab 1, in order to avoid a decrease in strength of the cab 1 itself, the strength of the left ceiling beam 7 and the right ceiling beam 8 is determined. Is required to maintain. If the left member 17 and the right member 18 are fixed by welding, it is not necessary to additionally process the left ceiling beam 7 and the right ceiling beam 8 themselves for fixing the left member 17 and the right member 18. Therefore, the strength of the left ceiling beam 7 and the right ceiling beam 8 can be maintained, and the strength reduction of the cab 1 can be reliably prevented.
  • the left member 17 and the right member 18 are integrally joined to the upper surfaces of the left ceiling beam 7 and the right ceiling beam 8, respectively, without reducing the strength of the left ceiling beam 7 and the right ceiling beam 8. It refers to the processing to obtain. Therefore, the welding is not limited to narrow sense welding in which at least one of the left member 17 and the left ceiling beam 7 is melted and joined by applying heat and / or pressure. That is, the left member 17 and the left ceiling beam 7 may be joined using a filler material, or the left member 17 and the left ceiling beam 7 may be joined by pressure welding or brazing.
  • the left-side member 17 and the right-side member 18 included in the first mount member 10 are formed with bottomed tapped holes 15 having a depth that does not penetrate in the vertical direction, and the second mount member 20 is moved by the screw action of the bolt.
  • One mount member 10 is fixed. Thereby, it is avoided that the left ceiling beam 7 and the right ceiling beam 8 are subjected to processing such as perforation for attaching the second mount member 20, and the left ceiling beam 7 and the right ceiling beam are more reliably secured. The strength of 8 can be maintained.
  • a width direction ceiling beam 9 a or 9 b extending in the left-right direction is provided in the upper part of the cab 1, a width direction member 19 is fixed to the width direction ceiling beam 9 a or 9 b, and the second mount member 20 is It may be supported by the width direction member 19.
  • the second mount member 20 is supported by the width direction member 19 extending in the width direction of the cab 1 in addition to the left side member 17 and the right side member 18. Since the first mount member 10 has a more robust structure, the first mount member 10 can support the second mount member 20 more stably. Therefore, the second mount member 20 can be arranged on the ceiling board 2 more stably.
  • the second mount member 20 has a planar antenna installation surface 21a, and the positioning antenna 50 may be mounted on the antenna installation surface 21a.
  • the positioning antenna 50 since the positioning antenna 50 is mounted on a flat surface, it becomes easier to mount the positioning antenna 50 on the antenna installation surface 21a with an accurate position and posture.
  • the second mount member 20 includes a pair of left and right vertical support members 23 extending in the front-rear direction of the cab 1 and the pair of vertical support members 23 in the left-right direction of the cab 1.
  • a plurality of lateral support members 24 extending.
  • the second mount member 20 has a sufficiently large rigidity so as to suppress the occurrence of bending in a state where the second mount member 20 is disposed across the left member 17 and the right member 18. Accordingly, it is possible to reliably avoid the second mount member 20 from being deformed so as to be bent downward and interfering with the ceiling plate 2, and the positioning antenna 50 can be placed on the ceiling plate 2 in a more accurate position and posture. Can be installed.
  • the second mount member 20 may vibrate when the bulldozer 30 is running or during work using the earth removal plate 38.
  • the position of the positioning antenna 50 mounted on the second mount member 20 fluctuates.
  • the positioning antenna 50 deviates from the initial calibration position, and the positioning antenna 50 is used.
  • the measurement accuracy of the current position of the work machine decreases. Therefore, as shown in FIG. 11, the second mount member 20 is reinforced by a plurality of lateral support members 24. Thereby, the rigidity of the second mount member 20 can be improved and the vibration of the second mount member 20 can be suppressed. Therefore, the vibration of the positioning antenna 50 mounted on the second mount member 20 can be suppressed, and the positioning can be performed.
  • the measurement accuracy of the antenna 50 can be improved.
  • each of the left side member 17 and the right side member 18 is formed by one member extending in the front-rear direction of the cab 1, but a plurality of points scattered at intervals in the front-rear direction of the cab 1.
  • You may comprise the left side member 17 and the right side member 18 with a member.
  • the width direction member 19 may be configured by a plurality of members that are scattered at intervals in the width direction of the cab 1.
  • the workability related to the fixing of the first mount member 10 is reduced, and the strength of the first mount member 10 is reduced by providing an interval. In consideration of these, it is desirable to design the first mount member 10 optimally.
  • welding is disclosed as a preferred example as a method of fixing the first mount member 10 to the ceiling beam.
  • the present invention is not limited to this. As long as the strength of the ceiling beam can be prevented from being lowered and the fixing strength of the first mount member 10 to the ceiling beam can be sufficiently secured, the first mount member 10 can be made into the ceiling beam by any other method such as adhesion. It may be fixed.
  • the width direction member 19 is provided on the rear side of the cab 1 and the width direction member 19 supports the rear edge portion of the second mount member 20 has been described.
  • positioning of the width direction member 19 in the front-back direction is good also as arbitrary.
  • a width direction member that supports the front edge portion of the second mount member 20 may be provided, or a width direction member that supports an intermediate portion in the front-rear direction of the second mount member 20 may be provided.
  • Directional members may be provided.
  • the first mount member 10 is formed by passing a bolt through the lateral support member 24 for improving the rigidity of the second mount member 20 and fixing the second mount member 20 to the width direction member 19 using the bolt.
  • the second mount member 20 can be supported more stably. Therefore, it is desirable to optimally design the first mount member 10 and the second mount member 20 so that the width direction member 19 and the lateral direction support member 24 are disposed at positions where they overlap each other in the front-rear direction of the cab 1.
  • the second mount member 20 by providing the second mount member 20 with sufficiently large rigidity, the second mount member 20 in a state in which the left and right edge portions are supported by the left member 17 and the right member 18 is not bent. It is also possible to do. In this case, the width direction member may not be provided on the ceiling beam of the cab 1.
  • the bulldozer 30 has been described as an example of the work vehicle.
  • the work vehicle of the present invention is not limited to the bulldozer, and may be another work vehicle such as a wheel loader or a motor grader.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention porte sur un véhicule de travail, qui permet à une antenne de localisation d'être fixée sur une plaque de plafond d'une cabine dans une position et une posture précises, tout en éliminant une diminution de précision de mesure due à la vibration. Un véhicule de travail comporte un premier élément de monture (10), un second élément de monture (20) et une antenne de localisation (50). Le premier élément de monture (10) comprend un élément côté gauche (17) fixé à une poutre de plafond côté gauche (7), et un élément côté droit (18) fixé à une poutre de plafond côté droit (8). Le second élément de monture (20) est disposé sur une plaque de plafond (2) de façon à s'étendre de l'élément côté gauche (17) à l'élément côté droit (18). L'antenne de localisation (50) est montée sur le second élément de monture (20).
PCT/JP2013/056421 2013-03-08 2013-03-08 Véhicule de travail WO2014136254A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2013/056421 WO2014136254A1 (fr) 2013-03-08 2013-03-08 Véhicule de travail
JP2013528451A JP5383957B1 (ja) 2013-03-08 2013-03-08 作業車両
US14/004,724 US20140252803A1 (en) 2013-03-08 2013-03-08 Work vehicle
CN201380001023.8A CN104220676A (zh) 2013-03-08 2013-03-08 作业车辆

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/056421 WO2014136254A1 (fr) 2013-03-08 2013-03-08 Véhicule de travail

Publications (1)

Publication Number Publication Date
WO2014136254A1 true WO2014136254A1 (fr) 2014-09-12

Family

ID=50036598

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/056421 WO2014136254A1 (fr) 2013-03-08 2013-03-08 Véhicule de travail

Country Status (4)

Country Link
US (1) US20140252803A1 (fr)
JP (1) JP5383957B1 (fr)
CN (1) CN104220676A (fr)
WO (1) WO2014136254A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016002874A (ja) * 2014-06-17 2016-01-12 井関農機株式会社 トラクタのキャビン
JP2019100014A (ja) * 2017-11-29 2019-06-24 日立建機株式会社 転圧車両

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9574325B2 (en) * 2015-03-16 2017-02-21 Komatsu Ltd. Work vehicle and cab for work vehicle
KR102420670B1 (ko) * 2017-02-08 2022-07-13 얀마 파워 테크놀로지 가부시키가이샤 작업 차량용 안테나 유닛, 및 작업 차량
US11008731B2 (en) * 2017-03-31 2021-05-18 Komatsu Ltd. Work vehicle
JP7195105B2 (ja) * 2018-10-09 2022-12-23 株式会社小松製作所 キャブ及び作業機械
CN110654321B (zh) * 2019-09-29 2022-06-28 上海华兴数字科技有限公司 一种车载导航系统的安装结构及工程机械

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003112579A (ja) * 2001-08-01 2003-04-15 Hitachi Constr Mach Co Ltd 建設機械
JP2010117230A (ja) * 2008-11-12 2010-05-27 Topcon Corp 建設機械
JP2012219516A (ja) * 2011-04-08 2012-11-12 Hitachi Constr Mach Co Ltd 建設機械用キャブ

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1621404A (en) * 1925-04-15 1927-03-15 John W Harvey False roof for motor vehicles
US1712215A (en) * 1926-06-25 1929-05-07 Lester L Jones Antenna loop
US1832093A (en) * 1926-12-13 1931-11-17 Cameron Richard Antenna for radio apparatus
US1688875A (en) * 1927-12-03 1928-10-23 Paul D Morris Loop aerial
US3729741A (en) * 1971-04-19 1973-04-24 O Otto Automobile antenna support
US4107695A (en) * 1976-08-11 1978-08-15 Urban Donald E Antenna raising and lowering device
US4161735A (en) * 1978-05-22 1979-07-17 Zylla Norbert R Detachable antenna mount
US4370658A (en) * 1981-04-29 1983-01-25 Hill Fred G Antenna apparatus and method for making same
US5364049A (en) * 1992-07-15 1994-11-15 Radar Engineers Vehicular mounting system for directional antennas
US6586668B2 (en) * 1999-02-05 2003-07-01 Powerlight Corporation Electric vehicle with photovoltaic roof assembly
WO2008129905A1 (fr) * 2007-04-17 2008-10-30 Komatsu Ltd. Panneau de toit et cabine munie du panneau, et procédé de fabrication de la cabine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003112579A (ja) * 2001-08-01 2003-04-15 Hitachi Constr Mach Co Ltd 建設機械
JP2010117230A (ja) * 2008-11-12 2010-05-27 Topcon Corp 建設機械
JP2012219516A (ja) * 2011-04-08 2012-11-12 Hitachi Constr Mach Co Ltd 建設機械用キャブ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016002874A (ja) * 2014-06-17 2016-01-12 井関農機株式会社 トラクタのキャビン
JP2019100014A (ja) * 2017-11-29 2019-06-24 日立建機株式会社 転圧車両

Also Published As

Publication number Publication date
JP5383957B1 (ja) 2014-01-08
JPWO2014136254A1 (ja) 2017-02-09
CN104220676A (zh) 2014-12-17
US20140252803A1 (en) 2014-09-11

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