FR2376961A1 - Rotary hydraulic servo element - has length of hose with spiral reinforcement wound in one direction to provide limited rotary movement - Google Patents

Rotary hydraulic servo element - has length of hose with spiral reinforcement wound in one direction to provide limited rotary movement

Info

Publication number
FR2376961A1
FR2376961A1 FR7700324A FR7700324A FR2376961A1 FR 2376961 A1 FR2376961 A1 FR 2376961A1 FR 7700324 A FR7700324 A FR 7700324A FR 7700324 A FR7700324 A FR 7700324A FR 2376961 A1 FR2376961 A1 FR 2376961A1
Authority
FR
France
Prior art keywords
hose
length
layer
hydraulic servo
servo element
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.)
Granted
Application number
FR7700324A
Other languages
French (fr)
Other versions
FR2376961B1 (en
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.)
Dunlop Ltd
Original Assignee
Dunlop Ltd
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 Dunlop Ltd filed Critical Dunlop Ltd
Priority to FR7700324A priority Critical patent/FR2376961A1/en
Publication of FR2376961A1 publication Critical patent/FR2376961A1/en
Application granted granted Critical
Publication of FR2376961B1 publication Critical patent/FR2376961B1/fr
Granted 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type
    • F15B15/103—Characterised by the construction of the motor unit the motor being of diaphragm type using inflatable bodies that contract when fluid pressure is applied, e.g. pneumatic artificial muscles or McKibben-type actuators

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The servo element produces a limited rotary movement of controlled torque by hydraulic pressure applied to a hose element. A length of hose is fitted to a spindle. The hose consists of an inner layer of rubber of about 1.5 mm thickness surrounded by a reinforcing layer. The reinforcing layer consists of a rubberised fabric built up from parallel threads of nylon. The fabric is cut up so that when the strip is placed over the inner layer, the nylon threads are positioned at an angle of 55 deg. to the hose centreline. To ensure the continuity of the layer of threads, a canvas or cotton strip is applied along the seams and in addition a rubber covering layer can be applied.
FR7700324A 1977-01-07 1977-01-07 Rotary hydraulic servo element - has length of hose with spiral reinforcement wound in one direction to provide limited rotary movement Granted FR2376961A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7700324A FR2376961A1 (en) 1977-01-07 1977-01-07 Rotary hydraulic servo element - has length of hose with spiral reinforcement wound in one direction to provide limited rotary movement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7700324A FR2376961A1 (en) 1977-01-07 1977-01-07 Rotary hydraulic servo element - has length of hose with spiral reinforcement wound in one direction to provide limited rotary movement

Publications (2)

Publication Number Publication Date
FR2376961A1 true FR2376961A1 (en) 1978-08-04
FR2376961B1 FR2376961B1 (en) 1979-04-20

Family

ID=9185221

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7700324A Granted FR2376961A1 (en) 1977-01-07 1977-01-07 Rotary hydraulic servo element - has length of hose with spiral reinforcement wound in one direction to provide limited rotary movement

Country Status (1)

Country Link
FR (1) FR2376961A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB697707A (en) * 1950-12-21 1953-09-30 American Steel Foundries Improvements in a fluid pressure responsive device
US3490733A (en) * 1967-07-21 1970-01-20 Commissariat Energie Atomique Valve operating device
FR2056281A5 (en) * 1969-07-23 1971-05-14 Kleinwachter Hans

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB697707A (en) * 1950-12-21 1953-09-30 American Steel Foundries Improvements in a fluid pressure responsive device
US3490733A (en) * 1967-07-21 1970-01-20 Commissariat Energie Atomique Valve operating device
FR2056281A5 (en) * 1969-07-23 1971-05-14 Kleinwachter Hans

Also Published As

Publication number Publication date
FR2376961B1 (en) 1979-04-20

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Legal Events

Date Code Title Description
ST Notification of lapse