FR2387579A1 - Automatic control for ripper tool - has depth control circuit to automatically change attitude of ripper blade - Google Patents

Automatic control for ripper tool - has depth control circuit to automatically change attitude of ripper blade

Info

Publication number
FR2387579A1
FR2387579A1 FR7712647A FR7712647A FR2387579A1 FR 2387579 A1 FR2387579 A1 FR 2387579A1 FR 7712647 A FR7712647 A FR 7712647A FR 7712647 A FR7712647 A FR 7712647A FR 2387579 A1 FR2387579 A1 FR 2387579A1
Authority
FR
France
Prior art keywords
depth
ripper
pitch
tool
control circuit
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.)
Withdrawn
Application number
FR7712647A
Other languages
French (fr)
Inventor
Darrel Mack Wooldridge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
American Tractor Equipment Corp
Original Assignee
American Tractor Equipment Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Tractor Equipment Corp filed Critical American Tractor Equipment Corp
Priority to FR7712647A priority Critical patent/FR2387579A1/en
Publication of FR2387579A1 publication Critical patent/FR2387579A1/en
Withdrawn legal-status Critical Current

Links

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
    • E02F9/2037—Coordinating the movements of the implement and of the frame
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E02F5/32—Rippers

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)
  • Earth Drilling (AREA)

Abstract

The control positions a diverter valve to alternately apply fluid power between a depth positioning power cylinder, so that the attitude of the ripper blade will automatically be changed between a penetrating mode and a ripping mode at a preselected depth. A depth control circuit having a depth sensor switch and a depth selector switch detects the vertical displacement of the piper tool and provides a command at a preselected depth. A pitch control circuit having a pitch sensor switch and a pitch selector switch detects the angular displacement of the ripper tool and provides a command at a preselected pitch. A control relay is connected to the depth and pitch control circuits and is responsive to the commands to shift the position of the diverter valve and direct fluid power from the depth positioning cylinder to the pitch positioning cylinder when the ripper tool is detected at a preselected depth.
FR7712647A 1977-04-20 1977-04-20 Automatic control for ripper tool - has depth control circuit to automatically change attitude of ripper blade Withdrawn FR2387579A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7712647A FR2387579A1 (en) 1977-04-20 1977-04-20 Automatic control for ripper tool - has depth control circuit to automatically change attitude of ripper blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7712647A FR2387579A1 (en) 1977-04-20 1977-04-20 Automatic control for ripper tool - has depth control circuit to automatically change attitude of ripper blade

Publications (1)

Publication Number Publication Date
FR2387579A1 true FR2387579A1 (en) 1978-11-17

Family

ID=9189954

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7712647A Withdrawn FR2387579A1 (en) 1977-04-20 1977-04-20 Automatic control for ripper tool - has depth control circuit to automatically change attitude of ripper blade

Country Status (1)

Country Link
FR (1) FR2387579A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003584A1 (en) * 1986-11-10 1988-05-19 Caterpillar Inc. Control system for an impact ripper
FR2862675A1 (en) * 2003-11-21 2005-05-27 Komatsu Mfg Co Ltd Ripper for use in bulldozer, has elevation cylinder with end sides, one connected to side of body in position higher than support part and another to side of beam in position lower than other support part

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003584A1 (en) * 1986-11-10 1988-05-19 Caterpillar Inc. Control system for an impact ripper
BE1000340A3 (en) * 1986-11-10 1988-10-25 Caterpillar Inc Control system for a percussion ripper.
FR2862675A1 (en) * 2003-11-21 2005-05-27 Komatsu Mfg Co Ltd Ripper for use in bulldozer, has elevation cylinder with end sides, one connected to side of body in position higher than support part and another to side of beam in position lower than other support part

Similar Documents

Publication Publication Date Title
GB1532607A (en) Fluid control system for multiple circuited work elements
EP0266478A3 (en) Command and control device for a tool
JPS53132659A (en) Oil pressure control device of automatic transmission
ES8701336A1 (en) Apparatus for controlling gear changing operation in automatic transmission.
JPS52129874A (en) Mechanical-hydraulic reduction gear
GB1548792A (en) Control system having override for fluid operated work elements
GB1469918A (en) Fast exhaust circuit for hydraulic jacks
ZA78159B (en) Fluid actuated flow control valve
FR2387579A1 (en) Automatic control for ripper tool - has depth control circuit to automatically change attitude of ripper blade
IT1076148B (en) Automatic control for ripper tool - has depth control circuit to automatically change attitude of ripper blade
GB2068594B (en) Pressure control valve for an open hydraulic circuit
GB2017602A (en) Fluid control valve especially for a hydraulic steering controller
ES484425A1 (en) Temperature actuated fluid control valve.
JPS56153135A (en) Shock preventing device for hidraulic cylinder
MX145983A (en) IMPROVEMENTS IN REMOTE CONTROLLED AUTOMATIC DISCHARGE VALVE
GB1530102A (en) Control of driving means
JPS6435151A (en) Safety device for transmission
DE3483090D1 (en) NUMERIC CONTROL DEVICE WITH AUTOMATIC TOOL DETERMINATION FUNCTION.
JPS5410862A (en) Transmission automatic controller
JPS57171150A (en) Control device of transmission
EP0330322A3 (en) Hydraulic pressure control device for automatic transmission for vehicle including reverse stage prevention system
KR900702431A (en) Numerical controller
JPS52156271A (en) Automatic speed change controller
BE883788A (en) CONTROL CIRCUIT FOR VARIABLE DISPLACEMENT PUMPS WITH OVER-CONTROL VALVE
JPS52147252A (en) Pressure control valve for hydraulic clutch

Legal Events

Date Code Title Description
ST Notification of lapse