JPS5794106A - Cylinder extension apparatus - Google Patents

Cylinder extension apparatus

Info

Publication number
JPS5794106A
JPS5794106A JP17043280A JP17043280A JPS5794106A JP S5794106 A JPS5794106 A JP S5794106A JP 17043280 A JP17043280 A JP 17043280A JP 17043280 A JP17043280 A JP 17043280A JP S5794106 A JPS5794106 A JP S5794106A
Authority
JP
Japan
Prior art keywords
cylinder device
cylinder
extended
end position
operable
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
JP17043280A
Other languages
Japanese (ja)
Inventor
Susumu 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.)
YUNITSUKU KK
Furukawa Unic Corp
Original Assignee
YUNITSUKU KK
Unic 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 YUNITSUKU KK, Unic Corp filed Critical YUNITSUKU KK
Priority to JP17043280A priority Critical patent/JPS5794106A/en
Publication of JPS5794106A publication Critical patent/JPS5794106A/en
Pending legal-status Critical Current

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  • Actuator (AREA)

Abstract

PURPOSE: To simplify a construction by providing a valve operable at the most extended end position of the first cylinder device when it extends and another valve operable at the most contracted end position of the second cylinder device when it contracts at a supply and discharge circuit of the first and second cylinder devices.
CONSTITUTION: On the supply and discharge circuit connecting oil chambers 16, 20 at the extended sides of the first and second cylinder devices A, B, a valve 24 operable at the extended end position of the first cylinder device A when it extends so as to communicate with an oil supply side to an oil chamber at an extended side of the second cylinder device B, and another valve 38 operable at the contracted end position of the second cylinder device B when it contracts so as to communicate an oil chamber 16 at an extended side of the first cylinder device A to a discharge side are provided. Consequently the cylinder apparatus can extend and contract in turn by a directly movable way and its simple construction can be attained.
COPYRIGHT: (C)1982,JPO&Japio
JP17043280A 1980-12-02 1980-12-02 Cylinder extension apparatus Pending JPS5794106A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17043280A JPS5794106A (en) 1980-12-02 1980-12-02 Cylinder extension apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17043280A JPS5794106A (en) 1980-12-02 1980-12-02 Cylinder extension apparatus

Publications (1)

Publication Number Publication Date
JPS5794106A true JPS5794106A (en) 1982-06-11

Family

ID=15904801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17043280A Pending JPS5794106A (en) 1980-12-02 1980-12-02 Cylinder extension apparatus

Country Status (1)

Country Link
JP (1) JPS5794106A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5279183A (en) * 1975-11-24 1977-07-04 Cascade Corp Periscopic ram
JPS5362077A (en) * 1976-11-17 1978-06-03 Unic Corp Triple stage cylinder device
JPS5578809A (en) * 1978-12-06 1980-06-13 Yunitsuku:Kk Three-stage cylinder device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5279183A (en) * 1975-11-24 1977-07-04 Cascade Corp Periscopic ram
JPS5362077A (en) * 1976-11-17 1978-06-03 Unic Corp Triple stage cylinder device
JPS5578809A (en) * 1978-12-06 1980-06-13 Yunitsuku:Kk Three-stage cylinder device

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