JPS5462489A - Hatch device - Google Patents

Hatch device

Info

Publication number
JPS5462489A
JPS5462489A JP12875977A JP12875977A JPS5462489A JP S5462489 A JPS5462489 A JP S5462489A JP 12875977 A JP12875977 A JP 12875977A JP 12875977 A JP12875977 A JP 12875977A JP S5462489 A JPS5462489 A JP S5462489A
Authority
JP
Japan
Prior art keywords
hatch
opening
taking out
shielding substance
space
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
JP12875977A
Other languages
Japanese (ja)
Inventor
Sumio Muto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12875977A priority Critical patent/JPS5462489A/en
Publication of JPS5462489A publication Critical patent/JPS5462489A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

PURPOSE: To enable the working property easy, by means of enabling the inserting and withdrawing of a shielding substance contained in the space part by setting up opening parts at the upper surface and the lower surface of a hatch, and of lightening the hatch when it is in mounting and in treanfering.
CONSTITUTION: Opening parts 12, 13 are set up at the upper surface and the lower surface of a hatch 1 which is made of iron plate 3 and is provided with a space 11 in its inner part, and a disk plate 5 is mounted on the opening part 12, and an exit plate 7 is mounted on the opening part 13 freely from opening and closing. The hatch 1 is installed on the surface of an ceiling, and the shielding substance 4 is inserted into the space part 11 from an inserting inlet 12, and the disk plate 5 is mounted. After the hatch 1 being lightened by means of taking out the shielding substance from the taking out port 13 when the hatch 1 is in dismounting or in transfering, the taking out can be effected, thereby the working becomes easy.
COPYRIGHT: (C)1979,JPO&Japio
JP12875977A 1977-10-28 1977-10-28 Hatch device Pending JPS5462489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12875977A JPS5462489A (en) 1977-10-28 1977-10-28 Hatch device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12875977A JPS5462489A (en) 1977-10-28 1977-10-28 Hatch device

Publications (1)

Publication Number Publication Date
JPS5462489A true JPS5462489A (en) 1979-05-19

Family

ID=14992751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12875977A Pending JPS5462489A (en) 1977-10-28 1977-10-28 Hatch device

Country Status (1)

Country Link
JP (1) JPS5462489A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5089800A (en) * 1973-12-10 1975-07-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5089800A (en) * 1973-12-10 1975-07-18

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