JPS5550231A - Mainspring power accumulated quantity indicator - Google Patents

Mainspring power accumulated quantity indicator

Info

Publication number
JPS5550231A
JPS5550231A JP12378978A JP12378978A JPS5550231A JP S5550231 A JPS5550231 A JP S5550231A JP 12378978 A JP12378978 A JP 12378978A JP 12378978 A JP12378978 A JP 12378978A JP S5550231 A JPS5550231 A JP S5550231A
Authority
JP
Japan
Prior art keywords
mainspring
accumulated quantity
gear
power accumulated
power
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
JP12378978A
Other languages
Japanese (ja)
Inventor
Susumu Fukuda
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.)
Konan Camera Research Institue Inc
Original Assignee
Konan Camera Research Institue Inc
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 Konan Camera Research Institue Inc filed Critical Konan Camera Research Institue Inc
Priority to JP12378978A priority Critical patent/JPS5550231A/en
Publication of JPS5550231A publication Critical patent/JPS5550231A/en
Pending legal-status Critical Current

Links

Landscapes

  • Springs (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)

Abstract

PURPOSE: To make possible indication of mainspring powder accumulated quantity by controlling an index by way of the planetary gear intermeshing with the gear provided to a mainspring drive shaft.
CONSTITUTION: When a knob 7 is turned forward and backward, only the forward turning is transmitted to a barrel drum 4 and the drive shaft 2 of a mainspring 3 turns integrally. As a result, the planetary gear 9 intermeshed with the gear 8 of the shaft 2 turns to turn the toothed wheel 13 provided to an index ring 12 by way of a cam gear 11, whereby displaying of the power accumulated quantity of the mainspring 3 may be accomplished. Hence, when the mainspring is used as the power for automatic winding of film, the occurrence of winding faults, etc. owing ti insufficiency of the power accumulated quantity may be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP12378978A 1978-10-06 1978-10-06 Mainspring power accumulated quantity indicator Pending JPS5550231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12378978A JPS5550231A (en) 1978-10-06 1978-10-06 Mainspring power accumulated quantity indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12378978A JPS5550231A (en) 1978-10-06 1978-10-06 Mainspring power accumulated quantity indicator

Publications (1)

Publication Number Publication Date
JPS5550231A true JPS5550231A (en) 1980-04-11

Family

ID=14869332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12378978A Pending JPS5550231A (en) 1978-10-06 1978-10-06 Mainspring power accumulated quantity indicator

Country Status (1)

Country Link
JP (1) JPS5550231A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0462530A (en) * 1990-07-02 1992-02-27 Sankyo Seiki Mfg Co Ltd Film winding device
US6863435B2 (en) * 1997-08-11 2005-03-08 Seiko Epson Corporation Spring, mainspring, hairspring, and driving mechanism and timepiece based thereon
CN108443354A (en) * 2018-06-07 2018-08-24 北京独慧科技有限公司 A kind of contactless freewheel clutch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0462530A (en) * 1990-07-02 1992-02-27 Sankyo Seiki Mfg Co Ltd Film winding device
US6863435B2 (en) * 1997-08-11 2005-03-08 Seiko Epson Corporation Spring, mainspring, hairspring, and driving mechanism and timepiece based thereon
CN108443354A (en) * 2018-06-07 2018-08-24 北京独慧科技有限公司 A kind of contactless freewheel clutch
CN108443354B (en) * 2018-06-07 2023-08-04 北京独慧科技有限公司 Non-contact overrunning clutch

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