JPS5585742A - Emergency lift for dredging ladder - Google Patents

Emergency lift for dredging ladder

Info

Publication number
JPS5585742A
JPS5585742A JP15787578A JP15787578A JPS5585742A JP S5585742 A JPS5585742 A JP S5585742A JP 15787578 A JP15787578 A JP 15787578A JP 15787578 A JP15787578 A JP 15787578A JP S5585742 A JPS5585742 A JP S5585742A
Authority
JP
Japan
Prior art keywords
ladder
swing
winch
boat
lifted
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
JP15787578A
Other languages
Japanese (ja)
Other versions
JPS5919212B2 (en
Inventor
Yoshihiro Morioka
Osami Kawakami
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.)
RIYOUSEN ENG KK
RYOSEN ENG
Mitsubishi Heavy Industries Ltd
Original Assignee
RIYOUSEN ENG KK
RYOSEN ENG
Mitsubishi Heavy Industries 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 RIYOUSEN ENG KK, RYOSEN ENG, Mitsubishi Heavy Industries Ltd filed Critical RIYOUSEN ENG KK
Priority to JP15787578A priority Critical patent/JPS5919212B2/en
Publication of JPS5585742A publication Critical patent/JPS5585742A/en
Publication of JPS5919212B2 publication Critical patent/JPS5919212B2/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/905—Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)

Abstract

PURPOSE: To provide a method whereby the ladder can easily be lifted and repaired by making use of a swing anchor or a swing winch prepared on the own boat without employing a crane barge, when a ladder cannot be lifted on account of break of a ladder wire or damage of a ladder winch.
CONSTITUTION: The front ends of a right and a lift swing wire 9 are let to mount on a ladder gantry 1 through rollers 17, 18 and make an endless connection 20 with eachother at a height required on the water surface. The middle part of the leading sheaves 13 of right and left swing wires 9 to a swing block 14 is pulled up and supported on both sides of the ladder gantry 1 trought the sheaves or rollers 17, 18 and a ladder 3 is pulled up by rolling and driving a right and a left winch 10 on the boat.
COPYRIGHT: (C)1980,JPO&Japio
JP15787578A 1978-12-20 1978-12-20 Emergency hoisting method for dredging ladder Expired JPS5919212B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15787578A JPS5919212B2 (en) 1978-12-20 1978-12-20 Emergency hoisting method for dredging ladder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15787578A JPS5919212B2 (en) 1978-12-20 1978-12-20 Emergency hoisting method for dredging ladder

Publications (2)

Publication Number Publication Date
JPS5585742A true JPS5585742A (en) 1980-06-28
JPS5919212B2 JPS5919212B2 (en) 1984-05-04

Family

ID=15659310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15787578A Expired JPS5919212B2 (en) 1978-12-20 1978-12-20 Emergency hoisting method for dredging ladder

Country Status (1)

Country Link
JP (1) JPS5919212B2 (en)

Also Published As

Publication number Publication date
JPS5919212B2 (en) 1984-05-04

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