JPS5520969A - Stroke variable type cylinder - Google Patents

Stroke variable type cylinder

Info

Publication number
JPS5520969A
JPS5520969A JP9498478A JP9498478A JPS5520969A JP S5520969 A JPS5520969 A JP S5520969A JP 9498478 A JP9498478 A JP 9498478A JP 9498478 A JP9498478 A JP 9498478A JP S5520969 A JPS5520969 A JP S5520969A
Authority
JP
Japan
Prior art keywords
chamber
valve
hydraulic
oil
valve body
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
JP9498478A
Other languages
Japanese (ja)
Other versions
JPS5653645B2 (en
Inventor
Akira Okano
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.)
Tsuda Industries Co Ltd
Original Assignee
Tsuda Industries Co 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 Tsuda Industries Co Ltd filed Critical Tsuda Industries Co Ltd
Priority to JP9498478A priority Critical patent/JPS5520969A/en
Publication of JPS5520969A publication Critical patent/JPS5520969A/en
Publication of JPS5653645B2 publication Critical patent/JPS5653645B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Actuator (AREA)

Abstract

PURPOSE: To make possible fine adjustment while preventing the leakage of oil through release or cutting off of a discharge circuit from one chamber of a cylinder in the cource of the stroke by means of a valve sleeve designed to open or close the conical valve body with the forward and backward movement of reciprocative control rod inserted thereinto in such a manner as to be free to be positioned.
CONSTITUTION: When the working oil with a proper pressue is introduced into a valve front chamber 25 from a hydraulic connection port 17 of an adjustment section case 8, it pushes a valve body 20 against the force of a spring 21 and inducted to a hydraulic chamber 6 via a valve rear chamber 24, a circular chamber 23, a path 22, and an oil chamber 6. Consequently, a piston 9 is advanced and in response, a rotary rod turns to retract a control rod 15 connected thereto. This pushes the valve body in the opening direction allowing the working oil to flow to the hydraulic chamber 6. Thus, the piston further advances. On the other hand, the working oil in a hydraulic chamber in front of the cylinder is drained to a tank from a hydraulic connection port 3 of a rod cover 4. In this manner, a piston rod 10 can be advanced.
COPYRIGHT: (C)1980,JPO&Japio
JP9498478A 1978-08-01 1978-08-01 Stroke variable type cylinder Granted JPS5520969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9498478A JPS5520969A (en) 1978-08-01 1978-08-01 Stroke variable type cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9498478A JPS5520969A (en) 1978-08-01 1978-08-01 Stroke variable type cylinder

Publications (2)

Publication Number Publication Date
JPS5520969A true JPS5520969A (en) 1980-02-14
JPS5653645B2 JPS5653645B2 (en) 1981-12-21

Family

ID=14125154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9498478A Granted JPS5520969A (en) 1978-08-01 1978-08-01 Stroke variable type cylinder

Country Status (1)

Country Link
JP (1) JPS5520969A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5148548A (en) * 1974-10-25 1976-04-26 Fuji Satsushi Kogyo Kk Hikichigaidoyo madowaku
JPS5321376A (en) * 1976-08-11 1978-02-27 Howa Mach Ltd Self-acting intensifier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5148548A (en) * 1974-10-25 1976-04-26 Fuji Satsushi Kogyo Kk Hikichigaidoyo madowaku
JPS5321376A (en) * 1976-08-11 1978-02-27 Howa Mach Ltd Self-acting intensifier

Also Published As

Publication number Publication date
JPS5653645B2 (en) 1981-12-21

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