Title:
表示装置および時計のカレンダ装置
Document Type and Number:
Japanese Patent JP4866841
Kind Code:
B2
Abstract:
A display device and a timepiece calendar device capable of large display of letters and numbers, which can be simplified and reduced in size. The display device comprises a first display wheel (10) having a denotation portion (10b) for showing information about a part of a period and a toothed portion (10a) including a plurality of teeth to be driven;
a second display wheel (20) having a denotation portion (10b) for showing a part of the period other than the part of the period shown by the first display wheel (10), an opening (22) via which the first display wheel (10) is exposed, and a toothed portion (20a) including a plurality of teeth to be driven, and placed overlapping the first display wheel (10); and a driving finger (33) for driving the first display wheel (10) and the second display wheel (20) to rotate, and further comprises a display wheel drive control portion (30M) for driving the first display wheel (10) and the second display wheel (20), using the driving finger (33), every predetermined period of time, to thereby expose the denotation portion on one of the display wheels in the window (100) to thereby display the information,
wherein numbers of the teeth in the toothed portions of the first display wheel and of the second display wheel are the same.
Inventors:
Kazuo Noguchi
Application Number:
JP2007512827A
Publication Date:
February 01, 2012
Filing Date:
March 29, 2006
Export Citation:
Assignee:
Citizen Holdings Co., Ltd.
International Classes:
G04B19/247; G04B19/253
Domestic Patent References:
| JP2005156562A | ||||
| JP2005156563A |
Foreign References:
| GB957031A | ||||
| CH660941A3 | ||||
| CH695225A5 | ||||
| DE19845539A1 |
Attorney, Agent or Firm:
Haruka International Patent Office