JPS5458943A - Double-lid waterproof device for manhole - Google Patents

Double-lid waterproof device for manhole

Info

Publication number
JPS5458943A
JPS5458943A JP12517377A JP12517377A JPS5458943A JP S5458943 A JPS5458943 A JP S5458943A JP 12517377 A JP12517377 A JP 12517377A JP 12517377 A JP12517377 A JP 12517377A JP S5458943 A JPS5458943 A JP S5458943A
Authority
JP
Japan
Prior art keywords
rubber
waterproof
iron lid
packing
frame
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
JP12517377A
Other languages
Japanese (ja)
Other versions
JPS557502B2 (en
Inventor
Koichi Kuratani
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP12517377A priority Critical patent/JPS5458943A/en
Publication of JPS5458943A publication Critical patent/JPS5458943A/en
Publication of JPS557502B2 publication Critical patent/JPS557502B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prevent the invasion of water, earth and sand without fail and eliminate the play of an iron lid, by securing a waterproof film to an installed manhole frame with a packing rubber and an annular rubber.
CONSTITUTION: The packing rubber 4 is fitted to the edge of the installed manhole frame 3. The waterproof film 2 is coated over the packing rubber. The periphery of the film 2 is tightened to the packing rubber 4 by the annular rubber 5. Then, the iron lid 1 is placed on the frame 3. A waterproof function is fulfilled and the invasion of earth and sand is prevented by the interaction of contraction of the packing rubber 4 with the tightening by the annular rubber 5 without using any waterproof rubber ring between the iron lid 1 and the frame 3. Moreover, the play of the iron lid due to the waterproof rubber ring is eliminated
COPYRIGHT: (C)1979,JPO&Japio
JP12517377A 1977-10-20 1977-10-20 Double-lid waterproof device for manhole Granted JPS5458943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12517377A JPS5458943A (en) 1977-10-20 1977-10-20 Double-lid waterproof device for manhole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12517377A JPS5458943A (en) 1977-10-20 1977-10-20 Double-lid waterproof device for manhole

Publications (2)

Publication Number Publication Date
JPS5458943A true JPS5458943A (en) 1979-05-12
JPS557502B2 JPS557502B2 (en) 1980-02-26

Family

ID=14903687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12517377A Granted JPS5458943A (en) 1977-10-20 1977-10-20 Double-lid waterproof device for manhole

Country Status (1)

Country Link
JP (1) JPS5458943A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160064A (en) * 1991-05-21 1992-11-03 Erw, Inc. Fuel containment cover assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010077049A2 (en) * 2008-12-31 2010-07-08 Lee Jae-Duk Manhole cover

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4218050Y1 (en) * 1964-07-21 1967-10-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4218050Y1 (en) * 1964-07-21 1967-10-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160064A (en) * 1991-05-21 1992-11-03 Erw, Inc. Fuel containment cover assembly

Also Published As

Publication number Publication date
JPS557502B2 (en) 1980-02-26

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