JPS52118838A - Apparatus of opening and closing shutter for ventilating fans - Google Patents

Apparatus of opening and closing shutter for ventilating fans

Info

Publication number
JPS52118838A
JPS52118838A JP3445876A JP3445876A JPS52118838A JP S52118838 A JPS52118838 A JP S52118838A JP 3445876 A JP3445876 A JP 3445876A JP 3445876 A JP3445876 A JP 3445876A JP S52118838 A JPS52118838 A JP S52118838A
Authority
JP
Japan
Prior art keywords
opening
closing shutter
ventilating fans
shutter
connecting rod
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
JP3445876A
Other languages
Japanese (ja)
Inventor
Yasuyuki Mita
Fukumi Shimojima
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 JP3445876A priority Critical patent/JPS52118838A/en
Publication of JPS52118838A publication Critical patent/JPS52118838A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent a play of the shutter when it is opened by connection thereof with a connecting rod through a play hole with a groove of the shutter engaged with a projection of the connecting rod in such a manner that the shutter is locked remaining open.
COPYRIGHT: (C)1977,JPO&Japio
JP3445876A 1976-03-31 1976-03-31 Apparatus of opening and closing shutter for ventilating fans Pending JPS52118838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3445876A JPS52118838A (en) 1976-03-31 1976-03-31 Apparatus of opening and closing shutter for ventilating fans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3445876A JPS52118838A (en) 1976-03-31 1976-03-31 Apparatus of opening and closing shutter for ventilating fans

Publications (1)

Publication Number Publication Date
JPS52118838A true JPS52118838A (en) 1977-10-05

Family

ID=12414797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3445876A Pending JPS52118838A (en) 1976-03-31 1976-03-31 Apparatus of opening and closing shutter for ventilating fans

Country Status (1)

Country Link
JP (1) JPS52118838A (en)

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