EP0089447A3 - Hydraulic piloting device for remote control - Google Patents

Hydraulic piloting device for remote control Download PDF

Info

Publication number
EP0089447A3
EP0089447A3 EP82830066A EP82830066A EP0089447A3 EP 0089447 A3 EP0089447 A3 EP 0089447A3 EP 82830066 A EP82830066 A EP 82830066A EP 82830066 A EP82830066 A EP 82830066A EP 0089447 A3 EP0089447 A3 EP 0089447A3
Authority
EP
European Patent Office
Prior art keywords
lever
users
annular chamber
hydraulic
pressure
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Withdrawn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
EP82830066A
Other languages
German (de)
French (fr)
Other versions
EP0089447A2 (en
Inventor
Pietro Mor
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.)
Ditta HIDROBEN SpA
Original Assignee
Ditta HIDROBEN SpA
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 Ditta HIDROBEN SpA filed Critical Ditta HIDROBEN SpA
Priority to EP82830066A priority Critical patent/EP0089447A3/en
Publication of EP0089447A2 publication Critical patent/EP0089447A2/en
Publication of EP0089447A3 publication Critical patent/EP0089447A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Hydraulic Motors (AREA)

Abstract

For special employ in hydraulic contrivances such as: distributors, driving cylinders and for the hydraulic regula­ tion of pumps and motors with changing capacity, the device permits an exact proportionality between shifting of the control lever and the pressure wanted by the users. In stationary position of the lever, the delivery ducts to the users are connected with a drain duct by means of an insertion fitted in the device body.
The lever fulcrum is fitted on a head lever bearer supported on a wrist joint. By shifting the lever, a pusher is driven which presses a supporting spring giving rise to a displacement downwards of a small rod. In this way, through an annular chamber, the feeding pressure is set into communication with a bore leading to one of the users. This is possible because the annular chamber is communicating through a radial bore with two axial bores leading to another annular chamber and allows in this way to get a pressure in the use zone lower than the feeding one and proportional to the span opened by the small rod.
To the span reduction a spring is opposing, the shiffness of which is proportional to the lever displacement which is acting on the pusher. In the device, similar operation departments with rod are foreseen proportionally to the number of the use ducts which can be acted on by changing the lever movement.
EP82830066A 1982-03-22 1982-03-22 Hydraulic piloting device for remote control Withdrawn EP0089447A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP82830066A EP0089447A3 (en) 1982-03-22 1982-03-22 Hydraulic piloting device for remote control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82830066A EP0089447A3 (en) 1982-03-22 1982-03-22 Hydraulic piloting device for remote control

Publications (2)

Publication Number Publication Date
EP0089447A2 EP0089447A2 (en) 1983-09-28
EP0089447A3 true EP0089447A3 (en) 1983-12-14

Family

ID=8190111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82830066A Withdrawn EP0089447A3 (en) 1982-03-22 1982-03-22 Hydraulic piloting device for remote control

Country Status (1)

Country Link
EP (1) EP0089447A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6073913A (en) * 1998-04-03 2000-06-13 Chapman/Leonard Studio Equipment Hydraulic valve for a camera dolly
DE19949802A1 (en) * 1999-10-15 2001-04-19 Mannesmann Rexroth Ag Manual input control of hydraulic and electrohydraulic valves through joystick movement and operation of switches

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2236101A1 (en) * 1973-07-05 1975-01-31 Sigma Diesel Hydraulic actuator arm - spring system and valve ports gives balance and sense of feel to operator
FR2308000A1 (en) * 1975-04-18 1976-11-12 Wabco Westinghouse Gmbh HAND-OPERATED PILOT VALVE FOR A HYDRAULIC CONTROL UNIT
FR2327433A1 (en) * 1973-12-13 1977-05-06 Sigma Hydraulique Hydraulic control system fluid distributor - has force exerted at variable point between reducer valve slides by floating plate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2236101A1 (en) * 1973-07-05 1975-01-31 Sigma Diesel Hydraulic actuator arm - spring system and valve ports gives balance and sense of feel to operator
FR2327433A1 (en) * 1973-12-13 1977-05-06 Sigma Hydraulique Hydraulic control system fluid distributor - has force exerted at variable point between reducer valve slides by floating plate
FR2308000A1 (en) * 1975-04-18 1976-11-12 Wabco Westinghouse Gmbh HAND-OPERATED PILOT VALVE FOR A HYDRAULIC CONTROL UNIT

Also Published As

Publication number Publication date
EP0089447A2 (en) 1983-09-28

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19840608

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19851202

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MOR, PIETRO