JPS56131809A - Oil hydraulic cylinder for locking - Google Patents

Oil hydraulic cylinder for locking

Info

Publication number
JPS56131809A
JPS56131809A JP3460280A JP3460280A JPS56131809A JP S56131809 A JPS56131809 A JP S56131809A JP 3460280 A JP3460280 A JP 3460280A JP 3460280 A JP3460280 A JP 3460280A JP S56131809 A JPS56131809 A JP S56131809A
Authority
JP
Japan
Prior art keywords
spring
locking
pin
oil hydraulic
time
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
JP3460280A
Other languages
Japanese (ja)
Other versions
JPS602525B2 (en
Inventor
Kiyoshi Iwama
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3460280A priority Critical patent/JPS602525B2/en
Publication of JPS56131809A publication Critical patent/JPS56131809A/en
Publication of JPS602525B2 publication Critical patent/JPS602525B2/en
Expired legal-status Critical Current

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  • Actuator (AREA)

Abstract

PURPOSE: To carry out locking of high reliability through spring pressure by using an intermediate piston and a spring in a locking oil hydraulic cylinder used when a machine or an equipment is to be fixed at a certain place.
CONSTITUTION: When a directional control valve 15 is switched and port A is connected with a pressure side, the oil from an oil hydraulic source 16 is supplied to the port A of a tube 1, the intermediate piston 13 forces in a pin 3 against a spring 7 and stops at the stroke end 11. At this time, the compressive force of the spring 7 reaches the maximum, the pin 3 is forced into the groove or hole 6 of a matter 5 to be fixed and locking is finished. If the directional control valve 15 is brought to an intermediate position at this time, the hydraulic circuit system of the lock cylinder is put into a locked state, the intermediate piston 13 comes to a standstill inspite of the reaction of the spring 7 and this reaction acts is this time as a holding force of the pin 3.
COPYRIGHT: (C)1981,JPO&Japio
JP3460280A 1980-03-18 1980-03-18 Hydraulic cylinder for lock Expired JPS602525B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3460280A JPS602525B2 (en) 1980-03-18 1980-03-18 Hydraulic cylinder for lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3460280A JPS602525B2 (en) 1980-03-18 1980-03-18 Hydraulic cylinder for lock

Publications (2)

Publication Number Publication Date
JPS56131809A true JPS56131809A (en) 1981-10-15
JPS602525B2 JPS602525B2 (en) 1985-01-22

Family

ID=12418893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3460280A Expired JPS602525B2 (en) 1980-03-18 1980-03-18 Hydraulic cylinder for lock

Country Status (1)

Country Link
JP (1) JPS602525B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102943801A (en) * 2012-11-28 2013-02-27 苏州蓝王机床工具科技有限公司 Cantilever crane locking mechanism
CN103742482A (en) * 2014-01-15 2014-04-23 鞍钢股份有限公司 Crystallizer hydraulic cylinder pneumatic locking mechanism and application method thereof
CN104454780A (en) * 2014-10-23 2015-03-25 长沙中联重科环卫机械有限公司 Oil cylinder with mechanical locking function and hydraulic system
CN104454781A (en) * 2014-11-04 2015-03-25 长沙中联消防机械有限公司 Locking oil cylinder, oil cylinder control system and climbing fire-fighting truck or fire-fighting operation vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102943801A (en) * 2012-11-28 2013-02-27 苏州蓝王机床工具科技有限公司 Cantilever crane locking mechanism
CN103742482A (en) * 2014-01-15 2014-04-23 鞍钢股份有限公司 Crystallizer hydraulic cylinder pneumatic locking mechanism and application method thereof
CN104454780A (en) * 2014-10-23 2015-03-25 长沙中联重科环卫机械有限公司 Oil cylinder with mechanical locking function and hydraulic system
CN104454781A (en) * 2014-11-04 2015-03-25 长沙中联消防机械有限公司 Locking oil cylinder, oil cylinder control system and climbing fire-fighting truck or fire-fighting operation vehicle

Also Published As

Publication number Publication date
JPS602525B2 (en) 1985-01-22

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