JPS57149604A - Single-acting cylinder - Google Patents

Single-acting cylinder

Info

Publication number
JPS57149604A
JPS57149604A JP3422681A JP3422681A JPS57149604A JP S57149604 A JPS57149604 A JP S57149604A JP 3422681 A JP3422681 A JP 3422681A JP 3422681 A JP3422681 A JP 3422681A JP S57149604 A JPS57149604 A JP S57149604A
Authority
JP
Japan
Prior art keywords
inner cylinder
cylinder
piston
outer cylinder
pipe
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
Application number
JP3422681A
Other languages
Japanese (ja)
Inventor
Ikuo Moriwaki
Kiyoshi Nakamura
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.)
Shinmaywa Industries Ltd
Original Assignee
Shin Meiva Industry 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 Shin Meiva Industry Ltd filed Critical Shin Meiva Industry Ltd
Priority to JP3422681A priority Critical patent/JPS57149604A/en
Publication of JPS57149604A publication Critical patent/JPS57149604A/en
Pending 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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/224—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston which closes off fluid outlets in the cylinder bore by its own movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

PURPOSE:To slowly expand a cylinder up to the position of the maimum expansion by fitting an inner cylinder to an outer cylinder freely expandably and contractably, and by gradually throttling a connecting opening of the end side surface of a pipe extended from the bottom portion of the outer cylinder through a piston of the inner cylinder by a piston boss part. CONSTITUTION:An outer cylinder 1 is provided with an inner cylinder 2 fitted therein, which is freely expanded and contracted. A connecting opening 6 is formed on the end side surface of a pipe 3 extended from the bottom of the outer cylinder 1 through a piston 4 of the inner cylinder 2. The piston 4 comprises a collar 7 and a boss 8, the collar 7 being provided with a connecting hole 9 between each interior of the inner cylinder 2 and outer cylinder 1, the boss 8 being slidably inserted in the pipe 3 with a suitable gap. When pressure oil is supplied to the pipe 3, pressure oil flows through the connecting opening 6 into the inner cylinder 2, and through the connecting hole 9 into the outer cylinder 1 to press the piston 4 and expand the inner cylinder 2 so that the boss 8 throttles the connecting opening 6, which results in that the expanding speed of the inner cylinder 2 is decreased.
JP3422681A 1981-03-09 1981-03-09 Single-acting cylinder Pending JPS57149604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3422681A JPS57149604A (en) 1981-03-09 1981-03-09 Single-acting cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3422681A JPS57149604A (en) 1981-03-09 1981-03-09 Single-acting cylinder

Publications (1)

Publication Number Publication Date
JPS57149604A true JPS57149604A (en) 1982-09-16

Family

ID=12408227

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3422681A Pending JPS57149604A (en) 1981-03-09 1981-03-09 Single-acting cylinder

Country Status (1)

Country Link
JP (1) JPS57149604A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173705U (en) * 1984-04-26 1985-11-18 カヤバ工業株式会社 Single-acting hydraulic cylinder cushioning device
FR2641342A1 (en) * 1989-01-04 1990-07-06 Roux Roger FLUID ACTUATOR

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833508U (en) * 1971-08-23 1973-04-23
JPS5590706A (en) * 1978-12-28 1980-07-09 Juzo Maekawa Automatic oil-leak control type cylinder-ram

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833508U (en) * 1971-08-23 1973-04-23
JPS5590706A (en) * 1978-12-28 1980-07-09 Juzo Maekawa Automatic oil-leak control type cylinder-ram

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173705U (en) * 1984-04-26 1985-11-18 カヤバ工業株式会社 Single-acting hydraulic cylinder cushioning device
JPH0140324Y2 (en) * 1984-04-26 1989-12-04
FR2641342A1 (en) * 1989-01-04 1990-07-06 Roux Roger FLUID ACTUATOR

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