WO2014020777A1 - 油圧ショベル - Google Patents
油圧ショベル Download PDFInfo
- Publication number
- WO2014020777A1 WO2014020777A1 PCT/JP2012/075074 JP2012075074W WO2014020777A1 WO 2014020777 A1 WO2014020777 A1 WO 2014020777A1 JP 2012075074 W JP2012075074 W JP 2012075074W WO 2014020777 A1 WO2014020777 A1 WO 2014020777A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel
- gap
- pipe
- engine
- end surface
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/01—Arrangement of fuel conduits
- B60K15/013—Arrangement of fuel conduits of gas conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/01—Arrangement of fuel conduits
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- 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
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- 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
-
- 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
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- 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
- E02F9/0883—Tanks, e.g. oil tank, urea tank, fuel tank
-
- 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
- E02F9/166—Cabins, platforms, or the like, for drivers movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins
-
- 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
- E02F9/18—Counterweights
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
- B60K2015/03414—Arrangements or special measures related to fuel tanks or fuel handling associated with the fuel tank for cooling heated fuel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
Definitions
- Patent Document 1 discloses that a fuel tank, a fuel pump, a fuel pipe, and the like are assembled in advance to a support member as a fuel system subassembly for the purpose of improving assembly workability. ing. The assembled fuel system subassembly is mounted as a single component on the revolving frame, thereby improving the assembly workability.
- An object of the present invention is to suppress an increase in the temperature of fuel in the fuel pipe due to heat from the engine.
- the gap where the fuel pipe is arranged and the engine room are partitioned by a heat insulating member, so compared with the case where the gap is shielded by a counterweight or a swivel frame, the engine room has a simple configuration and is separated from the engine room. Can be prevented from entering the gaps where the fuel pipes are arranged.
- the fuel pipe is disposed in the gap between the counterweight and the swivel frame, and this gap is open to the outside air, so that the fuel flowing through the fuel pipe is heated by the engine. It is hard to be affected and is cooled by the outside air, and the temperature rise can be suppressed.
- FIG. 1 is an external perspective view of a hydraulic excavator according to an embodiment of the present invention.
- FIG. 5 is an enlarged partial view of FIG. 4.
- FIG. 6 is a view corresponding to FIG. 5 according to another embodiment of the present invention.
- the hydraulic excavator 1 of the present embodiment is a rear small turning type excavator, and includes a lower traveling body 2 and an upper rotating body 3 as shown in FIG.
- FIG. 1 is an overall perspective view of the excavator 1 viewed from the rear.
- FIG. 2 shows a rear structure of the hydraulic excavator 1 from which the vehicle body cover, the engine, and the counterweight are removed.
- the sponge member as a heat insulating material mentioned later is also abbreviate
- the lower traveling body 2 has crawler belts C on both the left and right sides. By rotating the crawler belts C, the excavator 1 can be moved forward and backward.
- the upper turning body 3 is mounted on the upper part of the lower traveling body 2 so as to be turnable. As shown in FIGS. 1 and 2, the upper swing body 3 includes a swing frame 4, a work machine 5, an engine 6, a fuel tank 7, a counterweight 8, a cooling unit 10 including a fuel cooler 9, It has.
- the revolving frame 4 includes a bottom plate 41 formed of a thick steel plate, left and right vertical plates 42 and 43, and the like.
- a working machine 5, an engine 6, a fuel tank 7, a counterweight 8, and a cooling unit 10 are supported on the revolving frame 4.
- the work machine 5 is supported at the front portion of the revolving frame 4, and a boom 11 bent at the center portion, an arm 12 attached to the tip of the boom 11, and a tip of the arm 12 And attached bucket 13.
- the hydraulic excavator 1 drives the hydraulic cylinders 11a, 12a, and 13a with pressure oil supplied via a hydraulic hose (not shown), thereby moving the boom 11, the arm 12, and the bucket 13 up and down. And excavation of sand and gravel.
- the engine 6 is mounted in the engine room S1 at the rear of the turning frame 4.
- a fuel tank 7 is disposed on one side of the engine 6 and a cooling unit 10 is disposed on the other side.
- a fuel filter 14 is provided on the rear side of the fuel tank 7. As the fuel filter 14, a main filter and a sub filter are provided, but details are omitted here.
- the counterweight 8 is supported by the rear end of the turning frame 4 behind the engine room S1.
- FIG. 3 shows the counterweight 8 viewed from the front.
- first pipe 21 is connected to the bottom of the fuel tank 7.
- the first pipe 21 extends upward from the bottom of the fuel tank 7, and the other end is connected to the upper part of the fuel filter 14.
- One end of the second pipe 22 is connected to the upper part of the fuel filter 14.
- the second pipe 22 extends downward from the upper portion of the fuel filter 14 to the bottom plate 41 of the revolving frame 4, and extends to the center in the left-right direction along the upper surface of the bottom plate 41 across the upper portion of the right vertical plate 43.
- the second pipe 22 further extends upward from the bottom plate 41, and the other end is connected to a fuel injection device (not shown) of the engine 6.
- the third pipe 23 is connected at one end to the fuel injection device of the engine 6.
- the third pipe 23 extends laterally from the fuel injection device, extends beyond the rear side of the cooling unit 10 to the vehicle outer side (left direction), and further outward and downward.
- the other end of the third pipe 23 is connected to the fuel cooler 9.
- the fourth pipe 24 as a return pipe has one end connected to the lower end of the fuel cooler 9.
- the fourth pipe 24 extends rearward from the lower end of the fuel cooler 9, further extends the rear side surface of the cooling unit 10 toward the vehicle inner side (right direction), and extends along the rear end surface of the bottom plate 41 of the revolving frame 4. It extends to the right end of the. Thereafter, the fourth pipe 24 extends to the fuel tank 7, and the other end is connected to the fuel tank 7.
- FIG. 4 is a view of a portion where the engine room S1 and the counterweight 8 are disposed as viewed from the left side of the vehicle.
- FIG. 5 is an enlarged cross-sectional view of the rear end surface of the bottom plate 41 of the revolving frame 4 and the lower end portion of the counterweight 8.
- the bottom plate 41 includes a first bottom plate 411 having a relatively thin thickness at the bottom and a second bottom plate 412 and a third bottom plate 413 stacked above the first bottom plate 411.
- the second bottom plate 412 and the third bottom plate 413 have substantially the same thickness and are thicker than the first bottom plate 411. Further, the rear end surface 411a of the first bottom plate 411 protrudes most rearward.
- the rear end surface 412a of the second bottom plate 412 is positioned in front of the rear end surface 411a of the first bottom plate 411, and the rear end surface 413a of the third bottom plate 413 is positioned in front of the rear end surface 412a of the second bottom plate 412. That is, the three bottom plates 411, 412 and 413 are laminated so that the rear end surfaces 411a, 412a and 413a are stepped, and a step is formed between the bottom plates 411 to 413.
- a third gap G ⁇ b> 3 is formed between the rear end surface 413 a of the third bottom plate 413 and the second end surface 8 b of the counterweight 8.
- the space in the front-rear direction is narrowest in the first gap G1, the second gap G2 is wider than the first gap G1, and the third gap G3 is wider than the second gap G2.
- the gaps G1 to G3 are open to the outside air, and the outside air can enter the gaps G1 to G3.
- the fuel is sent from the fuel tank 7 to the fuel filter 14 via the first pipe 21, and further supplied from the fuel filter 14 to the fuel injection device of the engine 6 via the second pipe 22. At this time, surplus fuel is sent to the fuel cooler 9 through the third pipe 23. The fuel cooled by the fuel cooler 9 is returned to the fuel tank 7 through the fourth pipe 24.
- the third gap G3 in which the fourth pipe 24 is disposed is opened to the outside together with the first gap G1 and the second gap G2. Accordingly, outside air is introduced into the third gap G3, and the fuel passing through the fourth pipe 24 is also cooled by the outside air. Moreover, the hot air from the engine room S1 is shielded by the sponge member 30, and the hot air from the engine room S1 can be prevented from directly touching the fourth pipe 24.
- first gap G1 a gap between the bottom plate 41 of the turning frame 4 and the lower end of the counterweight 8.
- the 4th piping 24 is arrange
- a fourth pipe (return pipe) 24 is disposed in a third gap G3 formed between the rear end surface of the turning frame 4 and the lower end portion of the counterweight 8, and the third gap G3 is open to the outside air. It is open. Moreover, the clearance gap in which the 4th piping 24 is arrange
- FIG. 7 and FIG. 8 show another embodiment.
- the arrangement of the fuel pipe 50, the configuration of the swivel frame 60, and the shape of the counterweight 80 are different from those in the above embodiment, but other configurations are basically the same as those in the above embodiment.
- the fuel path is the same as that of the above-described embodiment, and the fuel flows through the path of the fuel tank 7 ⁇ the fuel filter 14 ⁇ the engine 6 ⁇ the fuel cooler 9 ⁇ the fuel tank 7.
- the fuel pipe 50 laid between them has a first pipe 51 to a fourth pipe 54.
- the first pipe 51 connects the fuel tank 7 and the fuel filter 14.
- the second pipe 52 connects the fuel filter 14 and the engine.
- the second pipe 52 extends downward from the fuel filter 14 to the bottom plate 61 of the turning frame 60.
- the second pipe 52 is the surface of the bottom plate 61, extends to the center in the left-right direction along the lower end of the horizontal plate 62 constituting the revolving frame 60, and further extends upward to serve as a fuel injection device for the engine. It is connected.
- the horizontal plate 62 is a member that connects the left and right vertical plates (only the right vertical plate 63 appears in FIG. 7) in the left-right direction, and is between the engine room S1 and the front space. Has been placed.
- a fourth pipe 54 as a return pipe connects the fuel cooler 9 and the fuel tank 7.
- the fourth pipe 54 extends from the lower end of the fuel cooler 9 below the cooling unit 10 to the inside (rightward), and extends to the right end of the bottom plate 61 along the rear end surface of the bottom plate 61 of the swivel frame 60. It extends to. Thereafter, the fourth pipe 54 is connected to the fuel tank 7.
- the lower end of the counterweight 80 includes a first end surface 80a facing the rear end surface 611a of the first bottom plate 611, and a second end surface 80b and a third end surface 80c facing the rear end surface 612a of the second bottom plate 612.
- the first end face 80a is located farthest rearward
- the second end face 80b is located forward of the first end face 80a
- the third end face 80c is located further forward than the second end face 80b.
- a first gap G ⁇ b> 1 is formed between the rear end surface 611 a of the first bottom plate 611 and the first end surface 80 a of the counterweight 80.
- a second gap G2 is formed between the rear end surface 612a of the second bottom plate 612 and the second end surface 80b of the counterweight 80, and the rear end surface 612a of the second bottom plate 612 and the third end surface 80c of the counterweight 80 are A third gap G3 is formed between them.
- the first gap G1 is the narrowest
- the second gap G2 is wider than the first gap G1.
- the third gap G3 is wider than the first gap G1 and narrower than the second gap G2.
- the gaps G1 to G3 are open to the outside air, and the outside air can enter the gaps G1 to G3.
- the fourth pipe 54 is disposed in the second gap G2 along the rear end surface 612a of the second bottom plate 612, and is supported by the first bottom plate 611 by a plurality of clamps 56. Further, the fourth pipe 54 is arranged at a position that does not overlap with the first gap G1 in the front-rear direction. In other words, the first bottom plate 611 is disposed below the fourth pipe 54, and the fourth pipe 54 is not disposed directly as desired.
- a sponge member 85 for heat insulation is provided in the third gap G3.
- the sponge member 85 is attached to the rear end surface 612a of the second bottom plate 612 over almost the entire left and right widths. Further, an extension 85 a extending forward is formed on the upper part of the sponge member 85. The extension portion 85 a is disposed between the upper surface 612 b of the second bottom plate 612 and the counterweight 80.
- a pair of seal members 87 are provided below both the left and right ends of the sponge member 85.
- Each seal member 87 is provided on the first bottom plate 611 and seals a gap between the surface of the first bottom plate 611 and the lower surface of the sponge member 85.
- Each seal member 87 has a hole through which the fourth pipe 54 passes. The fourth pipe 54 passes through the through hole of the seal member 87 and is supported by the first bottom plate 611 together with the plurality of clamps 56.
- the same effect as that of the above embodiment can be obtained. That is, the fourth pipe 54 is arranged in the second gap G2 opened to the outside, and the second gap G2 and the engine room S1 are partitioned by the sponge member 85. An increase in the temperature of the circulating fuel can be suppressed. Further, in this embodiment, since the seal members 87 are provided at both the left and right ends of the sponge member 85, it is possible to more reliably prevent heat from the engine from entering the gap where the fourth pipe 54 is disposed. it can.
- the rear end portion of the first bottom plate 611 constituting the revolving frame 60 is positioned below the fourth pipe 54, earth and sand that have entered through the first gap G1 directly enter the fourth pipe 54. It is possible to prevent the fourth pipe 54 from being damaged.
- the return pipe of the fuel pipe is arranged in the gap between the swing frame and the counterweight.
- other fuel pipes such as a pipe from the fuel filter to the engine are connected to the swing frame. It may be arranged in a gap between the counterweight and the counterweight.
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- Structural Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Component Parts Of Construction Machinery (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
本実施形態の油圧ショベル1は、後方小旋回型の油圧ショベルであって、図1に示すように、下部走行体2と、上部旋回体3と、を備えている。図1は油圧ショベル1を後方から視た全体斜視図である。また、図2に、車体カバー、エンジン、及びカウンタウェイトを取り外した油圧ショベル1の後部構造を示している。なお、図2では、後述する断熱材としてのスポンジ部材も省略している。
燃料は、燃料タンク7→燃料フィルタ14→エンジン6→燃料クーラ9→燃料タンク7の経路で流通する。そして、これらの間には燃料配管20が敷設されている。より詳細には、図2に示すように、燃料タンク7と燃料フィルタ14との間には第1配管21が設けられ、燃料フィルタ14とエンジン6との間には第2配管22が設けられ、エンジン6と燃料クーラ9との間には第3配管23が設けられている。また、燃料クーラ9と燃料タンク7との間には第4配管(戻り配管)24が設けられている。
この油圧ショベル1では、燃料は、第1配管21を介して燃料タンク7から燃料フィルタ14に送られ、さらに第2配管22を介して燃料フィルタ14からエンジン6の燃料噴射装置に供給される。このとき、余剰の燃料は、第3配管23によって燃料クーラ9に送られる。燃料クーラ9で冷却された燃料は、第4配管24を介して燃料タンク7に戻される。
(1)旋回フレーム4の後端面とカウンタウェイト8の下端部との間に形成された第3隙間G3に第4配管(戻り配管)24が配置されており、この第3隙間G3は外気に開放されている。また、第4配管24が配置された隙間とエンジンルームS1とは断熱効果のあるスポンジ部材30によって仕切られている。したがって、第4配管はエンジンからの熱の影響を受けにくく、しかも外気によって冷却され、内部を流通する燃料の温度上昇が抑えられる。
本発明は以上のような実施形態に限定されるものではなく、本発明の範囲を逸脱することなく種々の変形又は修正が可能である。
2 下部走行体
3 上部旋回体
4,60 旋回フレーム
5 作業機
6 エンジン
7 燃料タンク
8,80 カウンタウェイト
8a,80a カウンタウェイト8,80の第1端面
8b,80b カウンタウェイト8,80の第2端面
80c カウンタウェイト80の第3端面
9 燃料クーラ
20,50 燃料配管
30,85 スポンジ部材
41,61 底板
24,54 第4配管(戻り配管)
411a,611a 第1底板411,611の後端面
412a,612a 第2底板412,612の後端面
413a 第3底板413の後端面
G1 第1隙間
G2 第2隙間
G3 第3隙間
Claims (5)
- 履帯を有する下部走行体と、
前記下部走行体の上部に旋回可能に支持された上部旋回体と、
を備え、
前記上部旋回体は、
板状の旋回フレームと、
前記旋回フレームに搭載されたエンジンと、
前記エンジンの一側方に配置された燃料タンクと、
前記エンジンの後方において前記旋回フレームに支持され、下端部が前記旋回フレームの後端面と隙間を介して対向しかつ前記隙間が外気に開放されるように配置されたカウンタウェイトと、
前記燃料タンクに接続され、前記旋回フレームの後端面と前記カウンタウェイトの下端部との間の隙間に配置された燃料配管と、
を有している、油圧ショベル。 - 前記旋回フレームの上方には、前記エンジンが配置されたエンジンルームが構成されており、
前記燃料配管が配置された前記隙間と前記エンジンルームとは遮蔽されている、
請求項1に記載の油圧ショベル。 - 前記燃料配管が配置された前記隙間と前記エンジンルームとを仕切る断熱部材をさらに備えた、請求項2に記載の油圧ショベル。
- 前記旋回フレームの後端面は、下端に形成された第1端面と、前記第1端面の上方で前記第1端面より前方に形成された第2端面と、を有し、
前記隙間は、前記第1端面と前記カウンタウェイト下端部との間に形成された第1隙間と、前記第2端面と前記カウンタウェイト下端部との間に形成され前記第1隙間より広い第2隙間と、を有しており、
前記第2隙間の前記燃料配管の直下に前記旋回フレームの底板の一部が存在する、
請求項1から3のいずれかに記載の油圧ショベル。 - 前記エンジンの他側方に配置された燃料クーラをさらに備え、
前記燃料配管は前記燃料クーラから前記燃料タンクに戻る配管である、
請求項1から4のいずれかに記載の油圧ショベル。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280002813.3A CN103975111B (zh) | 2012-08-03 | 2012-09-28 | 液压挖掘机 |
DE112012000378.0T DE112012000378B4 (de) | 2012-08-03 | 2012-09-28 | Hydraulikbagger |
US13/823,381 US8794673B2 (en) | 2012-08-03 | 2012-09-28 | Hydraulic excavator |
KR1020137002524A KR101529092B1 (ko) | 2012-08-03 | 2012-09-28 | 유압 셔블 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012172602A JP5181076B1 (ja) | 2012-08-03 | 2012-08-03 | 油圧ショベル |
JP2012-172602 | 2012-08-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014020777A1 true WO2014020777A1 (ja) | 2014-02-06 |
Family
ID=48189469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/075074 WO2014020777A1 (ja) | 2012-08-03 | 2012-09-28 | 油圧ショベル |
Country Status (6)
Country | Link |
---|---|
US (1) | US8794673B2 (ja) |
JP (1) | JP5181076B1 (ja) |
KR (1) | KR101529092B1 (ja) |
CN (1) | CN103975111B (ja) |
DE (1) | DE112012000378B4 (ja) |
WO (1) | WO2014020777A1 (ja) |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014125623A1 (ja) * | 2013-02-15 | 2014-08-21 | 株式会社小松製作所 | 油圧ショベル |
JP6234330B2 (ja) * | 2014-06-09 | 2017-11-22 | 株式会社クボタ | 作業機 |
JP6488218B2 (ja) * | 2015-09-30 | 2019-03-20 | 株式会社クボタ | 作業機 |
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DE112012000378B4 (de) | 2014-09-25 |
KR20140027042A (ko) | 2014-03-06 |
CN103975111B (zh) | 2015-06-03 |
CN103975111A (zh) | 2014-08-06 |
US8794673B2 (en) | 2014-08-05 |
JP2014031643A (ja) | 2014-02-20 |
US20140083781A1 (en) | 2014-03-27 |
DE112012000378T5 (de) | 2014-04-17 |
JP5181076B1 (ja) | 2013-04-10 |
KR101529092B1 (ko) | 2015-06-16 |
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