JPS6421172A - Rotary type automatic formwork device - Google Patents

Rotary type automatic formwork device

Info

Publication number
JPS6421172A
JPS6421172A JP17562187A JP17562187A JPS6421172A JP S6421172 A JPS6421172 A JP S6421172A JP 17562187 A JP17562187 A JP 17562187A JP 17562187 A JP17562187 A JP 17562187A JP S6421172 A JPS6421172 A JP S6421172A
Authority
JP
Japan
Prior art keywords
actuator
valve
frames
counter
flow rate
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
JP17562187A
Other languages
Japanese (ja)
Inventor
Tomio Komine
Yasuo Kajioka
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.)
Shimizu Construction Co Ltd
Shimizu Corp
Original Assignee
Shimizu Construction Co Ltd
Shimizu 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 Shimizu Construction Co Ltd, Shimizu Corp filed Critical Shimizu Construction Co Ltd
Priority to JP17562187A priority Critical patent/JPS6421172A/en
Publication of JPS6421172A publication Critical patent/JPS6421172A/en
Pending legal-status Critical Current

Links

Landscapes

  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

PURPOSE: To perform a smooth work and improve safety in operation by a method wherein a proportional flow rate control valve, a counter-balance valve and a down-safety valve are arranged in an actuator driving hydraulic mechanism for alternatively rotating two frames. CONSTITUTION: An actuator 8 arranged at a center frame 4 installed behind both frames is driven so as to promote a concrete placing operation by alternatively turning an upper frame 2 and a lower frame 3. At this time, a hydraulic mechanism for driving the actuator 8 is provided with the proportional flow rate control valve and then a supplied amount of oil is adjusted in accordance with a signal applied from a sequencer. In addition, there is provided a counter- balance valve and in the case that the center frame 4 naturally drops, its speed is restricted. Further, there is provided a down-safety valve and in the case that a rapid reduction in pressure occurs in the hydraulic system, a pipeline passage for the actuator 8 is closed.
JP17562187A 1987-07-14 1987-07-14 Rotary type automatic formwork device Pending JPS6421172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17562187A JPS6421172A (en) 1987-07-14 1987-07-14 Rotary type automatic formwork device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17562187A JPS6421172A (en) 1987-07-14 1987-07-14 Rotary type automatic formwork device

Publications (1)

Publication Number Publication Date
JPS6421172A true JPS6421172A (en) 1989-01-24

Family

ID=15999287

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17562187A Pending JPS6421172A (en) 1987-07-14 1987-07-14 Rotary type automatic formwork device

Country Status (1)

Country Link
JP (1) JPS6421172A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829831A (en) * 1981-08-13 1983-02-22 Mitsubishi Petrochem Co Ltd Production of synthetic resin molding having excellent non-drippedness

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829831A (en) * 1981-08-13 1983-02-22 Mitsubishi Petrochem Co Ltd Production of synthetic resin molding having excellent non-drippedness

Similar Documents

Publication Publication Date Title
ES471096A1 (en) Hydraulic motor control
JPS56115428A (en) Hydraulic controller
JPS5659006A (en) Controlling method of hydraulic circuit for controlling pump
JPS5387433A (en) Apparatus for controlling steering force of power steering system
ES2004927A6 (en) Motorized tang drive system.
JPS6421172A (en) Rotary type automatic formwork device
JPS646501A (en) Control apparatus for load sensing hydraulic drive circuit
JPS56159136A (en) Method and apparatus for controlling injection of injection molder
JPS61206802A (en) Fluid control device actuated through control of electric motor
JPS6469804A (en) Hydraulic control apparatus
JPS5597863A (en) Sand stripping device of casting
JPS5455251A (en) Overspeed preventing method and its apparatus for waveforce generator
JPS6469805A (en) Hydraulic control system
TW290523B (en) The control apparatus for hydraulic elevator
GB934932A (en) Improvements in or relating to rollers such as are used for compacting and levelling materials during road making or repairing operations
JPS55139568A (en) Changeover valve
JPS5357691A (en) Operating method of upright hydraulic hoist
JPS57192662A (en) Speed-change controller of complex clutch type multistage speed change gear
FR2405087A1 (en) SEPARATOR SYSTEM FOR A FLUIDIC MIXTURE BY ADSORPTION
JPS54162355A (en) Hydraulic elevator
JPS56150237A (en) Control of speed of front member of hydraulic shovel
JPS55156656A (en) Continuous casting controlling apparatus
JPS56147977A (en) Automatic switching-valve
JPS5366688A (en) Vertical hydrohoist operating method
JPS57165513A (en) Construction of waterway