JPS55111532A - Method of fixing upright ladder piece to manhole - Google Patents

Method of fixing upright ladder piece to manhole

Info

Publication number
JPS55111532A
JPS55111532A JP1874679A JP1874679A JPS55111532A JP S55111532 A JPS55111532 A JP S55111532A JP 1874679 A JP1874679 A JP 1874679A JP 1874679 A JP1874679 A JP 1874679A JP S55111532 A JPS55111532 A JP S55111532A
Authority
JP
Japan
Prior art keywords
manhole
ladder piece
upright ladder
nuts
outer circumference
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
JP1874679A
Other languages
Japanese (ja)
Inventor
Ikurou Takemura
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.)
Kubota Corp
Original Assignee
Kubota 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 Kubota Corp filed Critical Kubota Corp
Priority to JP1874679A priority Critical patent/JPS55111532A/en
Publication of JPS55111532A publication Critical patent/JPS55111532A/en
Pending legal-status Critical Current

Links

Landscapes

  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

PURPOSE: To decrease the cost, to make a perforating operation of a penetrating hole at leg portion easy and to secure the fixing strength sufficiently for a long period by utilizing cut pieces of a FRP pipe as a pad material for the purpose.
CONSTITUTION: At an outer circumference of a metal fitting position of an upright ladder piece 2 for a manhole 1 made of a fiber reinforced synthetic resin pipe, pad materials 6 made of FRP are positioned along the outer circumference curve of the manhole, and both leg protions 2a having male screws of the upright ladder piece 2 are perforated through the manhole 1 and said pad material 6, and clamped fixedly with nuts. When flange portion 2b is previously formed at a proper position of the leg portion 2a, this serves as a stopper and nuts to be used inside of the manhole can be omitted. Accordingly, a fitting operation becomes more simple.
COPYRIGHT: (C)1980,JPO&Japio
JP1874679A 1979-02-19 1979-02-19 Method of fixing upright ladder piece to manhole Pending JPS55111532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1874679A JPS55111532A (en) 1979-02-19 1979-02-19 Method of fixing upright ladder piece to manhole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1874679A JPS55111532A (en) 1979-02-19 1979-02-19 Method of fixing upright ladder piece to manhole

Publications (1)

Publication Number Publication Date
JPS55111532A true JPS55111532A (en) 1980-08-28

Family

ID=11980211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1874679A Pending JPS55111532A (en) 1979-02-19 1979-02-19 Method of fixing upright ladder piece to manhole

Country Status (1)

Country Link
JP (1) JPS55111532A (en)

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