WO2005075753A1 - 建設機械 - Google Patents
建設機械 Download PDFInfo
- Publication number
- WO2005075753A1 WO2005075753A1 PCT/JP2005/001632 JP2005001632W WO2005075753A1 WO 2005075753 A1 WO2005075753 A1 WO 2005075753A1 JP 2005001632 W JP2005001632 W JP 2005001632W WO 2005075753 A1 WO2005075753 A1 WO 2005075753A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switching valve
- pattern
- seat
- driver
- switching
- Prior art date
Links
- 238000010276 construction Methods 0.000 title claims description 24
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000012790 confirmation Methods 0.000 abstract description 5
- 239000010720 hydraulic oil Substances 0.000 description 17
- 238000005192 partition Methods 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 238000012986 modification Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 7
- 230000000630 rising effect Effects 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 210000001217 buttock Anatomy 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000282816 Giraffa camelopardalis Species 0.000 description 1
- 101000852483 Homo sapiens Interleukin-1 receptor-associated kinase 1 Proteins 0.000 description 1
- 102100036342 Interleukin-1 receptor-associated kinase 1 Human genes 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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
- E02F9/20—Drives; Control devices
- E02F9/2025—Particular purposes of control systems not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
- E02F3/325—Backhoes of the miniature type
-
- 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
- E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
-
- 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
- E02F9/0875—Arrangement of valve arrangements on superstructures
-
- 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
- E02F9/20—Drives; Control devices
- E02F9/2004—Control mechanisms, e.g. control levers
- E02F9/2012—Setting the functions of the control levers, e.g. changing assigned functions among operations levers, setting functions dependent on the operator or seat orientation
-
- 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
- E02F9/0833—Improving access, e.g. for maintenance, steps for improving driver's access, handrails
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
Definitions
- the present invention relates to a construction machine such as a hydraulic shaft bell and a wheel loader, and in particular, a pattern switching valve for switching an operation pattern when the operation device is operated by the operation device.
- a hydraulic shovel as a construction machine has a self-propelled lower traveling body, an upper revolving body rotatably mounted on the lower traveling body via a pivoting device, and a front side of the upper revolving body. It is roughly composed of a work station consisting of a boom, an arm, a backrest V and a hydraulic cylinder that drives them, which can be raised and lowered.
- the upper swing body has a swing frame, a driver's seat provided on the swing frame, and a rear side of the swing frame.
- some hydraulic shovels have a pattern switching valve that switches a control valve that operates when the left and right working levers are operated (for example, see Patent Document 1 and Patent Document 2). See).
- This pattern switching valve may cause, for example, when the hydraulic shovel is operated from a lease company, the operation method of the hydraulic shovel may differ from the operation pattern in which the operator is familiar from time to time. The operation panel is switched according to the operator's preference. And nota
- the on-off switching valve is provided in the middle of the pilot pipe line connecting the control valve group and the working lever.
- Patent Document 1 • Japanese Utility Model Application Publication No. 6 3-1 3 5 0 0 4
- Patent Document 2 • Japanese Patent Application Publication No. 2 0 0 1 3 3 0 0 4
- a box-shaped switching valve mounting bracket is provided in the engine pressure bar covering the front side of the engine, and the pattern switching valve is located in the engine room.
- the switching lever for the switching valve is mounted on the switching valve mounting bracket so that the switching lever is on the rear side.
- the switching lever of the pattern switching valve is to open the bonnet covering the rear side of the spring. It can be operated more easily (see, for example, Patent Document 3).
- Patent Document 3 Japanese Patent Application Laid-Open No. 2 0 0 1-4 0 7 0 2
- a hydraulic shovel with a pattern switching valve arranged in the right force bar located on the right side of the driver's seat. Also, the switching lever of the notch switching valve opens the right cap. It can be operated by In addition, the hydraulic shaft is provided with a display showing the relationship between the work lever, the work device, and the operation of the turning device within the field of view of the seat that has been seated on the 3 ⁇ 4 ⁇ 5 seat, and the selected operation pattern is displayed. There is a notification to the public (see, for example, Patent Document 4).
- Patent Document 4 Japanese Patent Application Laid-Open No. 2 0 0 3-5 6 0 1 1
- the other hydraulic bearing is located on the left side of the foot of the operator seated in the driver's seat, with the floorboard projecting out There is a space in which a pattern switching valve is arranged again.
- the switching lever of the pattern switching valve can be operated by removing the rubber cover covering the upper side (see, for example, Patent Document 5).
- Patent Document 5 Japanese Patent Application Laid-Open No. 2 0 2 2 7 2 4 9
- An object of the present invention is to provide a construction machine in which the switching position of the pattern switching valve can be easily confirmed and the switching operation can be performed, and the workability can be improved.
- the construction machine comprises: a vehicle body; a working device provided so as to be able to move up and down at the buttocks of the vehicle body; a driver's seat pedestal formed on the vehicle body; An operator seat on which the seat is seated, a control valve provided in the middle of an oil passage connecting the work device to a hydraulic pressure source and controlling the work device by supplying and discharging pressure oil; An operation device provided in the vicinity of a driver's seat for controlling the control valve to operate the work device, and located between the operation device and the control valve, the operation pattern of the operation device and the control valve With a pattern switching valve to switch the combination pattern with
- the feature of the configuration adopted by the present invention is that, in the driver seat pedestal, a switching unit for switching the pattern switching valve is directed to the front side. It is in the configuration to be provided in the state
- the switching position of the switching portion can be obtained by looking inside the seat of the driver's seat when getting into the driver's seat Can be easily checked.
- the switching part of the pattern switching valve it is possible to easily operate near the driver's seat without getting off the driver's seat and walking to the rear side of the vehicle body.
- the driver's seat base includes It is preferable to provide a switching valve accommodating portion for accommodating the on-off switching valve.
- the pattern switching valve is accommodated in the switching valve accommodating portion provided on the driver's seat pedestal, the space on the lower side of the driver's seat can be effectively used for the surface switching valve. It is possible. Therefore, maintenance work for the pattern change valve can be done! You can do it easily, and you can make it easier for the vehicle, for example, to make it easier.
- the switching valve housing portion be configured in a box shape whose periphery is cut off,
- the hydraulic oil in the case where hydraulic oil leaks from the pattern switching valve, the hydraulic oil can be prevented from splashing around, thereby improving reliability, safety, etc. it can.
- the pattern switching valve be provided closer to the entrance to and from the driver's seat among the positions on the left and right sides of the driving seat.
- the pattern switching valve provided at the entrance and exit of the driver's seat can perform confirmation work, switching work, maintenance work, assembly work, etc. from the entrance side where it is easy to secure work space. .
- a front cover covering the pattern switching valve is provided on the base side of the driver seat so as to be openable and closable.
- the front side of the driver's seat pedestal can be covered, and the force paring can protect the devices disposed in the driver's seat pedestal from rainwater and dust.
- it can cover up and hide equipment placed in the driver's seat base to make it look better. For example, even if hydraulic oil leaks from the pattern switching valve, the hydraulic oil can be prevented from splashing around, and reliability, safety, etc. can be improved.
- a viewing window may be provided to view the switching portion of the pattern switching valve housed in the driver's seat base.
- the switching portion of the pattern switching valve can be visually confirmed by the observation window, and the switching state is Verification work can be done easily.
- the viewing window be provided with a transparent member that covers the viewing window.
- the window is covered with a transparent member, so equipment in the driver's seat can be protected from rain water and dust. Also, for example, hydraulic oil leaking from the pattern switching valve can be seen. It can prevent scattering from the window to the surroundings,
- the combination pattern of the operation device and the control valve is set in the vicinity of the observation window in accordance with the switching position of the switching unit of the pattern switching valve.
- a pattern display to be displayed may be provided.
- the front cover is provided with a locking mechanism which locks the repulsive force in a closed state.
- the front cover is closed using the lock mechanism. Because it can be locked in the state, it is possible to prevent the pattern switching valve from being switched inadvertently.
- the pressure between the hydraulic piping valve of the gd control device and the hydraulic pressure piping port of the recording control valve is supplied between the pressure gauge and the pressure control valve.
- a pipe line may be provided, and in the middle of the pilot pipe line, a relay member may be provided to connect an intermediate position of the pipe pipe line.
- the connection of the pilot line is changed when the pilot pipe is located between the operating device and the relay member. Because it is possible to do with only the road part ⁇ _ _ means that, on the vehicle body side between the relay member and the control valve, the installation position of the control valve, and the pilot pipe line on the control valve side (vehicle body side) Can be made constant, and these can be made common to improve the freedom of combination,
- the driver's seat pedestal is provided on a floor plate, and the relay member is provided below the floor plate.
- the relay member is provided on the lower side of the floor plate, the relay member can be hidden by the floor plate, and the appearance can be improved.
- Fig. 1 shows a hydraulic shop applied to the embodiment of the present invention. It is a front view showing the
- Fig. 2 is a front view showing the upper revolving superstructure with the engine, base unit, driver's seat, cab and so on attached to the revolving frame.
- Fig. 3 is an enlarged left side view of the upper revolving superstructure with the engine, base unit, driver's seat, cab and so on attached to the revolving frame.
- FIG. 4 is a plan view showing the upper revolving superstructure in which the engine, control valve, tank and the like are attached to the revolving frame.
- FIG. 5 is a partially broken perspective view showing a safety switch provided with a relay member and a pattern switching valve in a state in which the front cover is closed.
- FIG. 6 is a partially broken perspective view showing a base member provided with a relay member and a pattern switching valve with the front cover opened.
- Figure 7 is an exploded perspective view showing the base unit, the front pedestal, and the front cover in an exploded state.
- FIG. 8 is an external perspective view showing the connection of the pilot line to the control valve, the left and right working levers, the relay member, and the pattern switching valve.
- FIG. 9 is an enlarged perspective view of the main part showing the mounting state of the pattern switching valve on the base unit.
- Figure 10 is an enlarged view of the main part of the front cover showing the viewing window and the pattern display.
- Figure 1 1 is a hydraulic circuit diagram showing the hydraulic circuit of a hydraulic shovel operated by the left and right working levers.
- FIG. 12 is an enlarged view of a main part of a front cover showing a pattern display according to a first modified example of the present invention.
- Figure 13 shows a pilot arrangement according to a second variant of the invention It is a hydraulic circuit diagram showing a pipe.
- FIG. 14 is an exploded perspective view showing a driver's seat base according to a third modification of the present invention, together with a base unit, a front cover and the like.
- FIG. 15 is an exploded perspective view showing a driver's seat base according to a fourth modification of the present invention together with a base cover, a front cover and the like.
- Fig. 1, 1 is a form of hydraulic cylinder 3 of CANOPEN specification as a construction machine used in the form of this embodiment, and this hydraulic plate 3 is a self-propelled undercarriage 2 and An upper slewing body 4 mounted on the lower traveling body 2 via a pivoting device 3 so as to be pivotable and constituting a vehicle body together with the lower traveling body 2 and movably provided on the front side of the upper turning body 4 It is roughly configured with the working device 5 that has been selected.
- the working device 5 is a boom 5 A mounted so as to be able to ascend and descend on a side of a swing frame 6 which will be described later, and the boom 5.
- the boom 5A is raised and lowered with the arm 5B movably attached to the end of the A, a bucket 5C rotatably attached to the end of the arm 5B, and the bucket 5C.
- the upper revolving superstructure 4 is formed in a substantially circular shape as viewed from the upper side so that the upper revolving superstructure 4 can swing substantially within the vehicle width of the lower traveling vehicle 2. (See Figure 4).
- the upper revolving superstructure 4 is a turning frame 6, an engine 7, a base switch 1 3, a driver's seat 2 3, a control valve 2 5, working levers 2 6 and 2 7 and relay members described later.
- the swing frame 6 is a swing frame constituting the base of the upper swing body 4, and the swing frame 6 is a flat plate-like bottom plate 6A extending in the front and rear directions with the left and right middle portions as shown in FIG.
- Reference numeral 7 denotes an engine mounted on the rear side of the turning frame 6, and the engine 7 is disposed in a horizontally extending state extending in the left and right directions.
- the engine 7 is disposed so as to enter the lower side of the rear pedestal 15 of the base 13 as described later.
- a hydraulic pump 8 driven by the engine 7 is provided, and on the right side of the engine 7, heat exchange such as a radiator, oil cooler, etc.
- 10 is a hydraulic oil tank provided on the front side of the heat exchanger 9 and provided on the right side of the turning frame 6, and 1 1 is provided on the front side of the hydraulic oil tank 1 0
- the reference numeral 12 denotes a support member provided on the rear side of the turning frame 6, and the support member 12 is a base member which will be described later.
- 1 3 is a base unit provided on the left side of the turning frame 6, and the base unit 13 is supported at its front position by the front beam 6 D of the turning frame 6 and supported at its rear position. It is supported by members 1 2.
- the base unit 13 has a floor plate 14; a rear pedestal 1 5; a switching valve housing 1 6; a building mounting plate 1 7; It is roughly composed of reinforcement pipes 19 and so on.
- Reference numeral 14 denotes a floor plate which forms the front portion of the belt 1 13.
- the floor plate 14 is a footrest for an overnight seat on the driver's seat 2 3 described later. Reversing lever for mounting the traveling lever 1 • 0 4 etc., which will be described later. Also, the floorboards 1 to 4 below
- the relay member 3 1 described later which is located on the left side, is attached • o.
- Reference numeral 15 denotes a rear pedestal provided on the rear side of the floor plate 14.
- the rear pedestal 15 is a driver's seat together with a front pedestal 21 to be described later.
- the rear end of the engine 7 is provided with the rear end of the engine 7 and the engine 7 is installed so as to enter the lower side of the rear pedestal 1 5. Can be
- the rear pedestal 15 extends rearward from the upper end of the rising wall 15 A, and the rising wall 15 A, which rises upward from the rear end of the floor plate 14.
- the partition plate 15 D extending from the left end to the rear side and the separation plate 15 D are erected with a space on the left side, and the upper end is the above-mentioned Between the left side plate 1 5 E connected to the left end of the driver's seat support plate 1 5 B, and the partition plate 1 5 D and the left side plate 1 5 E It is formed by the closing plate 15 F after closing.
- Reference numeral 16 denotes a switching valve storage portion provided on the rear pedestal 15 located on the left side of the driver seat 23.
- the switching valve housing portion 16 is a switching valve housing portion 16 described later. It accommodates the pattern switching valve 3 2 and defines an open space that opens toward the front.
- the switching valve housing 16 is surrounded by the driver's seat support plate 15 B, partition plate 15 D, left side plate 15 E, etc.
- the rear part (rear side) is the rear closing plate 15 F It is formed in the shape of a box with its perimeter divided by being closed off.
- the pattern switching valve 32 can be accommodated in the switching valve housing 16 with the switching lever 32 B facing forward. Moreover, in the switching valve housing portion 16, the hydraulic oil is scattered around even if the hydraulic oil leaks out from the pilot pipeline 2 8 connected to the pattern switching valve 3 2. It has a function to prevent
- Reference numeral 1 7 denotes a building mounting plate extended rearward from the upper end of the rear pedestal 1 5, and the building mounting plate 1 7 has an arc shape extending from the left side to the rear side along the arc shape of the upper structure 4. It is formed. And, the building mounting plate 1 7 is supported by the support member 1 2 on the turning frame 6 side. In addition, the rear side of a cavity 4 1 described later is attached to the building mounting plate 1 7 ing.
- the instrument mounting portion 1 8 is an instrument mounting portion provided on the right side of the rear pedestal 1 5, and the instrument mounting portion 1 8 is a front plate 1 8 provided on the right side of the rising wall 15 A of the rear pedestal 1 5 It is roughly constituted by A and a slanted surface plate 18 B obliquely extending from the upper portion of the front plate 18 A toward the building mounting plate 17.
- instruments such as switches and monitors (not shown) can be attached to the instrument mounting section 1 8 via the instrument base 4 3 described later.
- each reinforcing pipe 19 is hidden behind the floor plate 14, the rear pedestal 1 5, and the building attachment plate 1 7, and only a part of it is the rear pedestal 1 5 and the instrument mounting portion 18 from the front side.
- the left side reinforcing pipe 1 9 exposed from the rear base 1 5 is disposed at the opening of the switching valve accommodating portion 1 6, and a mounting plate 20 described later is attached to the left side thereof.
- the mounting plate 20 is a mounting plate provided on the reinforcing pipe 1 9 on the left side located at the opening of the switching valve housing 1 6.
- the mounting plate 20 is welded, screwed, etc. to the reinforcing pipe 1 9 on the left side. It is fixed using the following fixing means.
- the mounting plate 20 is formed as a single plate extending upward and downward, whereby the mounting plate 20 has a simple structure. The pattern switching valve 3 2 described later can be fixed.
- mounting plate 20 constitutes a partition plate for partitioning between the switching valve housing portion 16 (pattern switching valve 32) and an electrical component 42 described later.
- mounting plate 20 receives hydraulic fluid from pilot line 28 connected to pattern switching valve 32. Even in the event of a leak, hydraulic oil can be prevented from being applied to each of the electrical components 4 2 consisting of a controller, a fuse, and the like.
- Reference numeral 21 denotes a front pedestal formed as a frame, and the front pedestal 21 is attached to the front of the rising wall 15 A of the rear pedestal 15 constituting the base unit 13. is there. And this front pedestal 2 1 is a HU pedestal 2 that constitutes the driver's seat pedestal 2 2 described later with the rear pedestal 1 5.
- the driver's seat pedestal 2 2 is a driver's seat pedestal provided on the floor plate 14, and the driver's seat pedestal 2 2 is a rear pedestal of the above-mentioned base switch 1 3
- the driver's seat pedestal 2 2 is disposed on the upper revolving superstructure 4 and constitutes a pedestal on which the driver's seat 2 3 described later is installed,
- the driver's seat pedestal 2 2 is used to install the pattern switching valve 3 2 described later with respect to the rear pedestal 1 5, the installation of each electric component 4 2, etc., and the maintenance operation of the pattern switching valve 3 2 etc.
- the front WP seat 21 is detachably attached to the rear pedestal 15 so that it can be easily carried out. Therefore, the driver's seat 2 2 may be configured as a pedestal member having a shape in which both the rear pedestal 1 5 and the front pedestal 2 1 are integrated, instead of two members that are strong. it can.
- Reference numeral 2 3 denotes a driver's seat provided on the driver's seat 2 (see FIG. 1, FIG. 3 and the like).
- the driver's seat 2 3 is a seat on which the hydraulic shovel 1 is operated. Also the driver's seat
- Reference numeral 2 4 denotes a main conduit (see FIG. 1 1) which is an oil passage through which the pressure oil discharged from the hydraulic pump 8 flows (refer to FIG. 1 1).
- the cylinders 5 D, 5 E, and 5 F of the working device 5 are connected to one another.
- Reference numerals 25A to 25D denote a plurality of control valves (generally referred to simply as “control valve 25") disposed in the middle of the main pipeline 24 and disposed on the turning frame 6
- Valve 25 is formed by a hydraulic piloted spool valve.
- the control valve 2 5 controls the swing control valve 2 5 A which controls the swing motor 3 A of the swing device 3 and the head control valve 2 5 B which controls the head 5 E of the work device 5.
- a boom control valve 25C for controlling the boom cylinder 5D and a bucket control valve 25D for controlling the bucket cylinder 5F.
- the control valve side pipeline 30 of the pilot pipeline 2 8 described later is connected to the hydraulic pilot section of each control valve 25.
- the left working lever 2 6 is a left working lever as an operating device disposed on the left side of the driver's seat 2 3, and the left working lever 2 6 is a pressure reducing valve type hydraulic pilot valve 2 6 A, and the hydraulic pilot valve It is roughly configured by the repeller 2 6 B which manually operates the control valve 2 6 A. Then, the left working lever 2 6 is operated by tilting the lever 2 6 B so that the pilot pressure is applied from the hydraulic pilot valve 2 6 A to the hydraulic pilot portion of the control valve 25. Is supplied to control any two of the swing motor 3A of the swing device 3 and cylinders 5D, 5E, and 5F of the working device 5.
- 2 7 is an operating device disposed on the right side of the driver's seat 2 3
- the right working lever 2 7 is almost the same as the left working lever 1 2 6 by the pressure reducing valve type hydraulic pilot valve 2 7 A and the lever 1 2 7 B. It is roughly configured.
- the right working lever 2 7 is the turning motor 3 of the turning device 3
- A controls the remaining two of cylinders 5 D, 5 E and 5 F of working device 5.
- each pilot pipeline 2 8 has left and right working levers 2 6,
- lever 1 side conduit 2 9 is a left lever side conduit 2 9 connecting the left working lever 2 6 and the below-mentioned pattern switching valve 32.
- a right lever side pipeline 2 9 B connecting the right working lever 2 7 and a relay member 3 1 described later, a relay member 3 1 and a pattern switching valve 3 2 are connected via the relay member 3 1 Intermediate line 2 9 C communicating with the right lever side line 2 9 B, and a switching valve outflow side line connecting the pattern switching valve 3 2 and the relay member 3 1
- a relay member provided between 2 9 and the control valve side conduit 30 is attached to the left side of the lower side (back side) of the floor plate 14.
- the relay member 3 1 has a mounting hole in a plate bent in a substantially L shape. 3 1 A is made by drilling a plurality of pieces and attaching connection metals M. 3 1 B to the mounting holes 3 1 A as many as necessary. Then, the relay member 3 1 connects the right rear channel 2 9 B of the lever side channel 2 9 and the intermediate channel 2 9 C in a separable manner, and the lever side channel 2 9
- the switch valve outlet pipe 2 9 D and the control valve pipe 3 0 are separably connected.
- the relay member 3 1 is configured to connect the lever side conduit 2 9 and the control valve side conduit 30 in a separable manner, and the turn switching valve 3 2 may be provided depending on the model. Even if the pattern switching valve 3 2 may not be provided, the change of the connection of the pipe 2 8 can be stopped only at the lever side pipe 2 9 by this.
- connection of 0, installation position of control valve 2 5 etc. can be fixed.
- the 3 2 is a pattern switching valve provided in the rear pedestal 1 5 constituting the driver's seat pedestal 2 2.
- the pattern switching valve 3 2 has left and right working levers 2 6 and 2 7 in front.
- the combination pattern of the operation panel and the control valve 25 when operated in the backward and left and right directions is switched to, for example, 4 patterns.
- hydraulic cylinder 3 bell 1 is the driver's seat 2 3 is the upper swing body
- the pattern switching valve 3 2 is located at the left and right sides of the driver's seat 2 3. 3 3, that is, housed in the switching valve housing portion 1 6 provided on the left side of the rear pedestal 1 5. Further, the pattern switching valve 32 is connected between the left and right working levers 2 6 and 2 7 and the control valve 25, that is, the left lever side conduit 2 9 A of the lever side conduit 2 9 , It is connected to the middle pipeline 2 9 C continuous with the right lever pipeline 2 9 B, and connected to the switching valve outlet pipeline 2 9 D, respectively.
- the pattern switching valve 32 is, for example, a valve body 32 A incorporating a direction switching valve (not shown), and the valve body 32 A similar to those described in Patent Document 1 and Patent Document 2, for example. It is roughly constituted by a switching lever 3 2 B as a switching portion for operating the inner direction switching valve.
- the pattern switching valve 32 has a switching lever for switching the pattern, so that the switching lever 3 2 B is on the front side. 3 2 C is screwed to the mounting plate 20 via the plate switching lever 3 2 3. If you want to check the switching position of the pattern switching valve 3 2-3 2 B, use the boarding ⁇ ⁇ 3 3 By looking at the lower side of the driver's seat 2 3, the switching position of the switching lever 3 2 can be easily confirmed. Further, the switching lever 3 2 of the pattern switching valve 3 2
- Reference numeral 3 4 denotes a front cover provided on the front side of the driver seat 2 2.
- the pressure force 34 is a pattern switching valve provided on the rear seat 1 5 as shown in FIG. 5 and FIG. 2, It covers the below-mentioned each electrical component 4 2 etc so that opening and closing is possible.
- a hinge 34A is provided at the lower end of the front cover 34, and the front cover 34
- 3 5 is the upper center of 3 4
- the check mechanism 35 is, for example, an engine key.
- the port V mechanism 3 5 is designed to be unlocked by the engine 3 6.
- the engine key 3 6 is configured to be used as a handle for opening and closing the front cover 34 as it is by being inserted into the lock mechanism 3 5. This makes it possible to eliminate the handle-like projection from the front side of the front force bar 34.
- the viewing window 3 7 is a viewing window provided in the front cover 3 4.
- the viewing window 3 7 is formed as an opening for visualizing the switching lever 32 of the pattern switching valve 3 2 from the outside.
- the viewing window 3 7 is disposed on the left side of the front face 3 4 4 so as to correspond to the switching lever 3 2 of the pattern switching valve 3 2 housed in the switching valve housing 1 6 There is. As a result, even with the front cover 34 closed, it is possible to easily check the position of the switching lever 32 of the pattern switching valve 32 housed inside.
- 3 8 is a transparent member provided so as to cover the viewing window 3 7, and while the transparent member 3 8 shields the viewing window 3 7, the switching lever 3 2 of the pattern switching valve 3 2 Make it visible from the outside.
- the transparent member 3 8 is wet It can prevent rainwater, dust, etc. from entering work and car wash, and it can also prevent the working oil from scattering around.
- the 3 9 is a pattern display provided on the left side of the viewing window 3 7 on the front surface of the front force pattern 34.
- the pattern display 3 9 is, for example, any pattern of which the pattern switching valve 3 2 has 4 patterns. It is something to inform the Pelle nightly whether it has been switched to the evening easily and accurately.
- reference numeral 40 in FIG. 1 denotes a driving lever provided on the front side of the driver's seat 23.
- a canopy 1 is provided on a swing frame 6 so as to cover the upper side of a driver's seat 2 3.
- the canopy 4 1 is, for example, a four-pillar canopy having pillars at the front, rear, left and right. It is formed.
- each component 4 2 is a controller, a fuse, or a unit It is composed of And each electrical component 4 2 is covered on the front side by the front cover 3 4 together with the pattern switching valve 3 2 etc. o
- 4 3 is an instrument base X-mounted on the instrument mounting portion 1 8 that constitutes the base 1 13.
- the instrument base 4 3 is mounted on the slope plate 1 8 B of the instrument mounting portion 1 8
- instruments such as switches, monitors and lamps are attached.
- the hydraulic shovel 1 according to the present embodiment has the above-described configuration, and the operation thereof will be described below.
- control valve 25 By operating 6 and 2 7, the control valve 25 is controlled, and the working device 5 can be driven to carry out a digging operation of soil and the like.
- the pilot pressure of the hydraulic pilot valves 2 6 A and 2 6 B can be controlled by the pilot line 2 8, It is supplied to the hydraulic pilot section of the control valve 25 via the relay member 3 1, pattern switching valve 32 and so on, and is switched.
- the pressure oil from the hydraulic pump 8 is supplied via the main line 24 and the control valve 25 to the swing motor 3A, the boom cylinder 5D, the machine cylinder 5E, and the packet cylinder 5F. Supplied and discharged.
- the operator When the operator gets into the driver's seat 2 3, the operator confirms the position of the switching lever 3 2 B of the pattern switching valve 3 2 from the viewing window 3 7 provided on the front cover 3 4, and displays the pattern 3 9 By matching the operation patterns of the left and right working levers 1 2 6 2 7 to their own preferences It is easy to know
- the lane change-over valve 3 2 is provided with the switching lever 3 2 B directed to the front side.
- the switching lever 3 2 B of the pattern switching valve 3 2 when checking the switching position of the switching lever 3 2 B of the pattern switching valve 3 2, when looking into the continuous switching seat 2 3, look at the switching lever 3 2 B inside from the window 3 7
- the switching position of the pattern switching valve 3 2 can be easily confirmed.
- the pattern switching valve 32 is housed in the switching valve housing portion 16 provided open on the front side of the base switch 13, the space on the lower side of the driver's seat 2 3 is used as the pattern switching valve 3 Can be effectively used for 2 As a result, maintenance work and the like for the pattern switching valve 32 can be performed on the front side.
- the layout It is possible to reduce the size of the vehicle body.
- the switching valve housing portion 16 has a box shape whose periphery is partitioned by the driver seat supporting plate 1 5 B of the rear pedestal 1 5, the partition plate 1 5 D, the left side plate 1 5 E, and the rear closing plate 1 5 F It is formed in As a result, even if, for example, the pilot pipe 2 8 connected to the pattern switching valve 3 2 is damaged and the hydraulic oil leaks out, the box-shaped switching valve housing portion 1 6 The hydraulic oil can be prevented from splashing around, and reliability, safety, etc. can be improved. Further, the pattern switching valve 3 2 is provided close to the entrance 3 3 for getting on and off the driver's seat 2 3. As a result, confirmation work, switching work, maintenance work, assembly work, etc. can be performed from the side of the entrance 3 where the work space can be easily secured, and work efficiency can be improved.
- the front cover 34 that covers the front side of the driver's seat pedestal 2 2 is a pattern switching valve 32 disposed inside the driver's seat pedestal 2 2, a controller, a fuse, etc. It can be protected. In addition, they can hide and hide these devices to improve their appearance. Furthermore, even if, for example, hydraulic oil leaks from the pattern switching valve 32, it is possible to prevent the hydraulic oil from splashing around, and reliability, safety, etc. It can be improved.
- the observation window 3 7 is provided on the front cover 3 4, even when the pattern switching valve 3 2 is covered by the front cover 3 4, switching of the pattern switching valve 3 2 by the observation window 3 7 The lever 3 2 B can be checked visually.
- the observation window 3 7 is covered with the transparent member 3 8, it is possible to protect the pattern switching valve 3 2, the electric parts 4 2, etc. from rain water and dust, and the hydraulic oil leaks out. A place where something happened Even in this case, it is possible to prevent hydraulic oil from splashing around.
- the operation pattern of the working levers 2 6 and 2 7 and the combination pattern of the control valve 25 are shown according to the switching position of the switching lever 3 2 B of the pattern switching valve 32. Since the pattern display 3 9 shown is provided, the switching lever
- the front force part 34 can be locked by the lock mechanism 35, it prevents the pattern switching valve 32 from being switched inadvertently. Also, the pattern switching can be performed. valve
- the opening mechanism 3 2 is necessary to operate the 2nd, so it is possible to always perform the pattern switching work with the engine 7 stopped, which can improve safety.
- the opening mechanism 3 5 can be used as the handle for opening and closing as it is. Abolish the protuberances, simplify the structure, and make the appearance look better
- the pilot pipe 28 can be divided into the lever side pipe 29 and the control valve side pipe 30 at the position of the relay member 31 ⁇ Therefore, even if the pattern switching valve 32 is provided or the pattern switching valve 32 may not be provided depending on the model, changes in the connection of the pilot line 28 will be made in the lever side line You can only stop at 2 9 Ru. As a result, since the connection relationship of the control valve side pipe 30 and the mounting position of the control valve 25 can be made constant, these can be shared to improve the freedom of combination. . Furthermore, since the mounting plate 20 is formed as a partition plate which divides between the switching valve accommodating portion 16 (pattern switching valve 32) and the electric component 42, pattern switching can be performed. Even if hydraulic fluid leaks out from the pipeline 2 8 connected to the valve 3 2, the hydraulic fluid is prevented from being applied to electrical components such as the controller and fuse 4 2 can do.
- the pattern display 3 9 is provided on the left side of the observation window 3 7 in the front of the front cover 1 3 4 is described as an example.
- the present invention is not limited to this.
- the pattern display 5 1 may be provided on the transparent member 3 8 covering the viewing window 3 7. In this case, it is desirable to form on the inner surface side of the transparent member 3 8 while the pattern display 5 1 does not rub off.
- the left side pipe line 2 9 connecting the left working line 1 2 6 and the pattern switching valve 3 2 is connected to the left side working line 2 6 of the pipe ⁇ V line 2 8.
- A, right right side pipeline 2 9 B connecting right working lever 1 2 and relay member 3 1, relay member 3 1 and pattern switching valve 3 2 connected, and relay member 3 1 In the case of consisting of an intermediate conduit 2 9 C communicating with the right lever side conduit 2 9 B and a switching valve outflow side conduit 2 9 D connecting the pattern switching valve 3 2 and the relay member 3 1
- an intermediate conduit 2 9 C communicating with the right lever side conduit 2 9 B and a switching valve outflow side conduit 2 9 D connecting the pattern switching valve 3 2 and the relay member 3 1
- the pattern switching valve 3 2 has been described as being switched to four patterns, taking the example of the base as an example.
- the present invention is not limited to this.
- two patterns may be used as the switching pattern of the pattern switching valve. In the field, there will be 2 9 fc A, B, showing the pattern.
- the floor 1 4 rear pedestal 1 5 shop mounting plate 1 7 the present invention is not limited to this, but the present invention is not limited to this.
- the driver's seat may be configured as a fourth modification shown in 4 or a fourth modification shown in FIG.
- Mounting plate 7 8 may be configured integrally.
- the driver's seat base 7 3 can be formed as a single member by eliminating the front base 21 and extending the rear base forward.
- the switching valve accommodating portion 7 4 is formed between the partition plate 7 3 D and the left side plate 7 3 E.
- base unit 8 1 includes floor plate 8 2, building mounting plate 8 3, instrument mounting portion 8 4, reinforcing pipe 8 5, mounting plate 8 6, etc. Form an integral opening, and provide a mounting opening 8 7 between floor plate 8 2 and building mounting plate 8 3. Then, the driver seat pedestal 8 8 may be formed separately from the base unit 8 1, and the driver seat pedestal 8 8 may be integrally fixed to the mounting opening 8 7 of the base union 8 1 using fixing means. .
- the driver's seat pedestal 8 8 is formed integrally with the rear pedestal and the front pedestal so that a rising wall 8 8 A, a driving seat support plate 8 8 B, a partition plate 8 8 C, Composed of the left side plate 8 8 D and so on. And, the switching valve accommodation portion 8 9 is formed between the partition plate 8 8 C and the left side plate 8 8 D.
- the hydraulic shovel 1 of the cab type is described by way of example using the four-pillar cab 41 covering the upper side of the driver's seat 2 3 as an example, but the present invention is not limited to this.
- hydraulic shovels with 2 pillars, 3 pillars, and 5 pillars a cab with a cab specification that uses a cab box that covers the left, right, and upper positions in front of, behind, and behind the driver's seat 2 3.
- a cab box that covers the left, right, and upper positions in front of, behind, and behind the driver's seat 2 3.
- the hydraulic shovel 1 capable of swinging the upper swing body 4 by the swing device 3 is illustrated as a construction machine.
- the present invention is not limited to this.
- the present invention can be widely applied to other construction machines such as a hydraulic shovel, a wheel loader and a giraffe which do not have a turning device.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Operation Control Of Excavators (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/564,186 US7530418B2 (en) | 2004-02-04 | 2005-01-28 | Construction machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004028347A JP4057542B2 (ja) | 2004-02-04 | 2004-02-04 | 建設機械 |
JP2004-28347 | 2004-02-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005075753A1 true WO2005075753A1 (ja) | 2005-08-18 |
Family
ID=34835924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/001632 WO2005075753A1 (ja) | 2004-02-04 | 2005-01-28 | 建設機械 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7530418B2 (ja) |
JP (1) | JP4057542B2 (ja) |
WO (1) | WO2005075753A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017008661A (ja) * | 2015-06-25 | 2017-01-12 | コベルコ建機株式会社 | 建設機械 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4303708B2 (ja) * | 2005-07-05 | 2009-07-29 | ヤンマー株式会社 | 旋回作業車 |
JP4737018B2 (ja) * | 2006-07-05 | 2011-07-27 | コベルコ建機株式会社 | 建設機械 |
US20080078917A1 (en) * | 2006-10-03 | 2008-04-03 | Roehrl Jonathan J | Engine mount |
JP4758400B2 (ja) * | 2007-07-19 | 2011-08-24 | 日立建機株式会社 | 建設機械 |
CN103189575B (zh) * | 2010-11-29 | 2015-06-10 | 日立建机株式会社 | 工程机械 |
CN103764921B (zh) * | 2011-09-09 | 2015-12-23 | 日立建机株式会社 | 工程机械 |
JP5803981B2 (ja) | 2013-06-07 | 2015-11-04 | コベルコ建機株式会社 | 建設機械のバルブ装置 |
JP5803984B2 (ja) * | 2013-06-13 | 2015-11-04 | コベルコ建機株式会社 | 作業機械 |
JP5854024B2 (ja) * | 2013-10-31 | 2016-02-09 | コベルコ建機株式会社 | 建設機械 |
JP5958455B2 (ja) * | 2013-12-06 | 2016-08-02 | コベルコ建機株式会社 | 建設機械 |
EP3258017B1 (en) * | 2015-10-30 | 2020-09-02 | Komatsu Ltd. | Work vehicle with rotatable console box |
JP6479646B2 (ja) * | 2015-12-17 | 2019-03-06 | 株式会社日立建機ティエラ | 小型の建設機械 |
JP6697369B2 (ja) * | 2016-11-02 | 2020-05-20 | 日立建機株式会社 | 建設機械 |
US10281054B2 (en) | 2017-09-15 | 2019-05-07 | Caterpillar Inc. | Valve guard for valve assembly |
JP7105645B2 (ja) * | 2018-07-31 | 2022-07-25 | 株式会社小松製作所 | キャブおよび作業機械 |
JP7379173B2 (ja) * | 2020-01-09 | 2023-11-14 | 日立建機株式会社 | 作業機械 |
JP2023033717A (ja) * | 2021-08-30 | 2023-03-13 | ヤンマーホールディングス株式会社 | 作業機械 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0710054U (ja) * | 1993-07-16 | 1995-02-10 | 株式会社小松製作所 | マルチ操作パターン切換装置 |
JPH0874292A (ja) * | 1994-09-02 | 1996-03-19 | Shin Caterpillar Mitsubishi Ltd | ショベル系建設機械における操作パターン切換装置の配設構造 |
JP2000096626A (ja) * | 1998-09-19 | 2000-04-04 | Yutani Heavy Ind Ltd | 建設機械の操作パターン切換装置 |
JP2000213003A (ja) * | 1999-01-26 | 2000-08-02 | Yanmar Diesel Engine Co Ltd | 操作パタ―ン切替装置 |
JP2001040702A (ja) * | 1999-07-29 | 2001-02-13 | Hitachi Constr Mach Co Ltd | 旋回式建設機械 |
JP2003041621A (ja) * | 2001-08-01 | 2003-02-13 | Hitachi Constr Mach Co Ltd | 旋回式建設機械 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5362173A (en) | 1992-09-17 | 1994-11-08 | Industri Ab Thule | Lockable quick release mechanism |
JP2001330004A (ja) | 2000-03-13 | 2001-11-30 | Hitachi Constr Mach Co Ltd | 操作パターン切換式パイロット弁装置 |
JP2002227249A (ja) | 2001-01-31 | 2002-08-14 | Hitachi Constr Mach Co Ltd | 旋回式建設機械 |
JP2003056011A (ja) | 2001-08-08 | 2003-02-26 | Hitachi Constr Mach Co Ltd | 旋回式建設機械 |
JP3908067B2 (ja) | 2002-03-26 | 2007-04-25 | 日立建機株式会社 | 建設機械の操作パターン表示装置 |
-
2004
- 2004-02-04 JP JP2004028347A patent/JP4057542B2/ja not_active Expired - Lifetime
-
2005
- 2005-01-28 WO PCT/JP2005/001632 patent/WO2005075753A1/ja active Application Filing
- 2005-01-28 US US10/564,186 patent/US7530418B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0710054U (ja) * | 1993-07-16 | 1995-02-10 | 株式会社小松製作所 | マルチ操作パターン切換装置 |
JPH0874292A (ja) * | 1994-09-02 | 1996-03-19 | Shin Caterpillar Mitsubishi Ltd | ショベル系建設機械における操作パターン切換装置の配設構造 |
JP2000096626A (ja) * | 1998-09-19 | 2000-04-04 | Yutani Heavy Ind Ltd | 建設機械の操作パターン切換装置 |
JP2000213003A (ja) * | 1999-01-26 | 2000-08-02 | Yanmar Diesel Engine Co Ltd | 操作パタ―ン切替装置 |
JP2001040702A (ja) * | 1999-07-29 | 2001-02-13 | Hitachi Constr Mach Co Ltd | 旋回式建設機械 |
JP2003041621A (ja) * | 2001-08-01 | 2003-02-13 | Hitachi Constr Mach Co Ltd | 旋回式建設機械 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017008661A (ja) * | 2015-06-25 | 2017-01-12 | コベルコ建機株式会社 | 建設機械 |
Also Published As
Publication number | Publication date |
---|---|
US7530418B2 (en) | 2009-05-12 |
US20080035401A1 (en) | 2008-02-14 |
JP4057542B2 (ja) | 2008-03-05 |
JP2005220576A (ja) | 2005-08-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2005075753A1 (ja) | 建設機械 | |
JP4209787B2 (ja) | 建設機械 | |
JP4695017B2 (ja) | 建設機械 | |
JP2007162313A (ja) | 建設機械 | |
JP2005133495A (ja) | 建設機械 | |
JP2007092278A (ja) | バックホーの上部構造 | |
JP4256219B2 (ja) | 建設機械 | |
JP2009179959A (ja) | 建設機械 | |
JP4468872B2 (ja) | 建設機械 | |
JP4347730B2 (ja) | 建設機械 | |
JP2011106222A (ja) | 建設機械 | |
JP4303156B2 (ja) | 建設機械用キャブ | |
JP4625430B2 (ja) | 建設機械 | |
JP2007092327A (ja) | バックホー | |
JP3579297B2 (ja) | 旋回式建設機械 | |
JP4381364B2 (ja) | バックホー | |
JP4143706B2 (ja) | 旋回作業車 | |
JP2005222330A (ja) | 作業機のペダル装置 | |
JP4703334B2 (ja) | バックホー | |
JP2013024012A (ja) | 建設機械 | |
JP2007092281A (ja) | バックホー | |
JP2007092326A (ja) | バックホー | |
JP2005307522A (ja) | 旋回式建設機械 | |
JP4515367B2 (ja) | バックホー | |
JP2001040702A (ja) | 旋回式建設機械 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 10564186 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 10564186 Country of ref document: US |