JPH0297437U - - Google Patents
Info
- Publication number
- JPH0297437U JPH0297437U JP1989005490U JP549089U JPH0297437U JP H0297437 U JPH0297437 U JP H0297437U JP 1989005490 U JP1989005490 U JP 1989005490U JP 549089 U JP549089 U JP 549089U JP H0297437 U JPH0297437 U JP H0297437U
- Authority
- JP
- Japan
- Prior art keywords
- positions
- cylinders
- upper revolving
- work implement
- revolving body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- 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
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
-
- 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
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
-
- 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
- E02F9/2033—Limiting the movement of frames or implements, e.g. to avoid collision between implements and the cabin
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Operation Control Of Excavators (AREA)
- Component Parts Of Construction Machinery (AREA)
Description
第1図はこの考案の一実施例になる作業機停止
装置の回路図、第2図は従来の超小旋回パワシヨ
ベルの側面図、第3図は同平面図、第4図は同回
路図である。 1……下部走行体、2……上部旋回体、3……
作業機、4,6,10a……シリンダ、24,2
5,26……管路、27,28,29……電磁弁
、27a,28a,29a……連通ポジシヨン、
27b,28b,29b……遮断ポジシヨン、2
7c,28c,29c……チエツク弁。
装置の回路図、第2図は従来の超小旋回パワシヨ
ベルの側面図、第3図は同平面図、第4図は同回
路図である。 1……下部走行体、2……上部旋回体、3……
作業機、4,6,10a……シリンダ、24,2
5,26……管路、27,28,29……電磁弁
、27a,28a,29a……連通ポジシヨン、
27b,28b,29b……遮断ポジシヨン、2
7c,28c,29c……チエツク弁。
Claims (1)
- 自走自在な下部走行体1上に上部旋回体2を旋
回自在に設け、この上部旋回体2に作業機3を装
着した超小旋回パワシヨベルにおいて、上記作業
機3に設けられたシリンダ4,6,10aを制御
する操作弁20,21,22と各シリンダ4,6
,10aを接続する管路24,25,26に、作
業機3が干渉領域手前の危険区域に達したとき連
通ポジシヨン27a,28a,29aより遮断ポ
ジシヨン27b,28b,29bへ切換えられる
電磁弁27,28,29を設けると共に、上記遮
断ポジシヨン27b,28b,29bにシリンダ
4,6,10a方向への流れを阻止するチエツク
弁27c,28c,29c弁を設けてなる超小旋
回パワシヨベルの作業機停止装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989005490U JPH0297437U (ja) | 1989-01-23 | 1989-01-23 | |
PCT/JP1990/000070 WO1990008233A1 (en) | 1989-01-23 | 1990-01-22 | Service machine stopping apparatus for midget rotary power shovel |
US07/582,182 US5136928A (en) | 1989-01-23 | 1990-01-22 | Service machine stopping apparatus for midget rotary power shovel |
KR1019900702104A KR910700384A (ko) | 1989-01-23 | 1990-01-22 | 초소 선회 파워 셔블(midget rotary power shovel)의 작업기 정지 장치 |
EP19900901879 EP0419667A4 (en) | 1989-01-23 | 1990-01-22 | Service machine stopping apparatus for midget rotary power shovel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989005490U JPH0297437U (ja) | 1989-01-23 | 1989-01-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0297437U true JPH0297437U (ja) | 1990-08-02 |
Family
ID=11612688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1989005490U Pending JPH0297437U (ja) | 1989-01-23 | 1989-01-23 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5136928A (ja) |
EP (1) | EP0419667A4 (ja) |
JP (1) | JPH0297437U (ja) |
KR (1) | KR910700384A (ja) |
WO (1) | WO1990008233A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07110759B2 (ja) * | 1990-10-18 | 1995-11-29 | 株式会社神戸製鋼所 | 建設機械における上部旋回体の旋回停止制御方法および装置 |
SE500613C2 (sv) * | 1991-09-20 | 1994-07-25 | Hilda Barbro Hjalmarson | Blandningsapparat omfattande en för mottagning av provtagningsrör avsedd blandningsplatta, som bibringas en vaggningsrörelse av viss frekvens |
US5704141A (en) * | 1992-11-09 | 1998-01-06 | Kubota Corporation | Contact prevention system for a backhoe |
JP3173896B2 (ja) * | 1992-11-09 | 2001-06-04 | 株式会社クボタ | バックホウ |
JP3679848B2 (ja) * | 1995-12-27 | 2005-08-03 | 日立建機株式会社 | 建設機械の作業範囲制限制御装置 |
US5957989A (en) * | 1996-01-22 | 1999-09-28 | Hitachi Construction Machinery Co. Ltd. | Interference preventing system for construction machine |
US5626070A (en) * | 1996-02-29 | 1997-05-06 | Caterpillar Inc. | Control logic for a multiple use hydraulic system |
US6230090B1 (en) * | 1997-01-07 | 2001-05-08 | Hitachi Construction Machinery Co., Ltd. | Interference prevention system for two-piece boom type hydraulic excavator |
EP1146174B1 (en) * | 1998-08-31 | 2009-10-07 | Yanmar Co., Ltd. | Extremely-small-swing working machine |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3814265A (en) * | 1973-08-20 | 1974-06-04 | Harnischfeger Corp | Hydraulic crane control system having means for deactivating control valves when operating limit is exceeded |
JPS517705A (ja) * | 1974-06-20 | 1976-01-22 | Kubota Ltd | Kutsusakuki |
US4236864A (en) * | 1978-11-09 | 1980-12-02 | Raymond Couture | Safety control system for the boom of a crane |
JPS58160437A (ja) * | 1982-03-17 | 1983-09-22 | Kubota Ltd | シヨベル作業車 |
US4646620A (en) * | 1983-07-01 | 1987-03-03 | Buchl Andrew F | Automatic depth control system |
JPS6153922A (ja) * | 1984-08-24 | 1986-03-18 | Hitachi Constr Mach Co Ltd | 建設機械の作業安全装置 |
JPS61216938A (ja) * | 1985-03-19 | 1986-09-26 | Seirei Ind Co Ltd | 二重旋回バツクホ−の旋回安全装置 |
US4655039A (en) * | 1985-06-20 | 1987-04-07 | The Raymond Corporation | Lift system |
GB2222997B (en) * | 1988-09-21 | 1992-09-30 | Kubota Ltd | Backhoe implement control system for use in work vehicle |
DE4004781A1 (de) * | 1990-02-16 | 1991-08-22 | Degussa | Verfahren zur herstellung von mit organosiliciumverbindungen modifizierten fuellstoffen, die so hergestellten fuellstoffe und deren verwendung |
JP3425777B2 (ja) * | 1992-11-25 | 2003-07-14 | 四国化成工業株式会社 | 食用油脂に対して分解能を示す微生物及びその使用法 |
-
1989
- 1989-01-23 JP JP1989005490U patent/JPH0297437U/ja active Pending
-
1990
- 1990-01-22 KR KR1019900702104A patent/KR910700384A/ko not_active Application Discontinuation
- 1990-01-22 WO PCT/JP1990/000070 patent/WO1990008233A1/ja not_active Application Discontinuation
- 1990-01-22 US US07/582,182 patent/US5136928A/en not_active Expired - Fee Related
- 1990-01-22 EP EP19900901879 patent/EP0419667A4/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO1990008233A1 (en) | 1990-07-26 |
KR910700384A (ko) | 1991-03-15 |
EP0419667A4 (en) | 1992-08-26 |
US5136928A (en) | 1992-08-11 |
EP0419667A1 (en) | 1991-04-03 |