JPS5610647B2 - - Google Patents

Info

Publication number
JPS5610647B2
JPS5610647B2 JP10255473A JP10255473A JPS5610647B2 JP S5610647 B2 JPS5610647 B2 JP S5610647B2 JP 10255473 A JP10255473 A JP 10255473A JP 10255473 A JP10255473 A JP 10255473A JP S5610647 B2 JPS5610647 B2 JP S5610647B2
Authority
JP
Japan
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.)
Expired
Application number
JP10255473A
Other versions
JPS4965003A (ja
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 filed Critical
Publication of JPS4965003A publication Critical patent/JPS4965003A/ja
Publication of JPS5610647B2 publication Critical patent/JPS5610647B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads
    • 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
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E02F3/432—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
JP10255473A 1972-09-11 1973-09-11 Expired JPS5610647B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28760472A 1972-09-11 1972-09-11

Publications (2)

Publication Number Publication Date
JPS4965003A JPS4965003A (ja) 1974-06-24
JPS5610647B2 true JPS5610647B2 (ja) 1981-03-10

Family

ID=23103614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10255473A Expired JPS5610647B2 (ja) 1972-09-11 1973-09-11

Country Status (7)

Country Link
US (1) US3782248A (ja)
JP (1) JPS5610647B2 (ja)
BE (1) BE804588A (ja)
CA (1) CA999952A (ja)
DE (1) DE2346162C2 (ja)
FR (1) FR2199144B1 (ja)
GB (1) GB1450165A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129885A (ja) * 1983-01-17 1984-07-26 Konishiroku Photo Ind Co Ltd 記録装置
JPH0439075B2 (ja) * 1982-09-17 1992-06-26

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062269A (en) * 1975-04-21 1977-12-13 Clark Equipment Company Hydraulic cylinder extension control
JPS5736701Y2 (ja) * 1975-12-04 1982-08-13
US4011959A (en) * 1976-02-13 1977-03-15 Caterpillar Tractor Co. Bucket-positioner circuit with "no detent" operation
JPS5923810Y2 (ja) * 1976-06-10 1984-07-14 株式会社小松製作所 操作レバの自動復帰装置
US4333251A (en) * 1981-01-23 1982-06-08 International Harvester Co. Automatic bucket leveler
WO1993006313A1 (en) * 1991-09-26 1993-04-01 Caterpillar Inc. Electronic implement control
KR101601978B1 (ko) * 2009-12-03 2016-03-09 두산인프라코어 주식회사 휠로더 버켓의 풀 크라우드 디텐트 장치
KR101601980B1 (ko) * 2009-12-24 2016-03-09 두산인프라코어 주식회사 전자식 능동 디텐트 장치 및 그 방법

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331108A (en) * 1940-07-10 1943-10-05 Reconstruction Finance Corp Hydraulic mechanism
US3420393A (en) * 1967-04-19 1969-01-07 Case Co J I Fluid motor position control
US3524562A (en) * 1968-09-19 1970-08-18 Caterpillar Tractor Co Hydraulic controls for bucket loaders
DE1962069C2 (de) * 1969-12-11 1982-09-16 Robert Bosch Gmbh, 7000 Stuttgart Mehrwegeventil mit einem elektromagnetisch in seinen Arbeitsstellungen gehaltenen Längsschieber
DE2045778A1 (de) * 1970-09-16 1972-03-23 Caterpillar Tractor Co., Peoria, 111. (V.St.A.) Magnetsteuerung, beispielsweise für die Schaufelsteuerung eines Schaufelladers
US3659734A (en) * 1971-06-09 1972-05-02 Caterpillar Tractor Co Bucket positioning device utilizing a biased proximity switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0439075B2 (ja) * 1982-09-17 1992-06-26
JPS59129885A (ja) * 1983-01-17 1984-07-26 Konishiroku Photo Ind Co Ltd 記録装置

Also Published As

Publication number Publication date
DE2346162C2 (de) 1983-12-01
US3782248A (en) 1974-01-01
FR2199144B1 (ja) 1976-09-24
FR2199144A1 (ja) 1974-04-05
CA999952A (en) 1976-11-16
DE2346162A1 (de) 1974-03-21
JPS4965003A (ja) 1974-06-24
GB1450165A (en) 1976-09-22
BE804588A (fr) 1974-03-07

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