Title:
クロノグラフ時計
Document Type and Number:
Japanese Patent JP5536623
Kind Code:
B2
Abstract:
A chronograph timepiece includes heart cams, a start-stop button, a reset-to-zero button, and a start-stop lever and a reset-to zero instruction lever operated by the start-stop button and the reset-to-zero button, respectively, for undergoing rotation around a common rotation center. A hammer operating lever rotates in a first direction when the start-stop lever rotates and rotates in a second direction when the reset-to-zero instruction lever rotates. When the hammer operating lever rotates in the second direction, a hammer lever causes the heart cams to be reset to zero by bringing hammer portions of the hammer lever into engagement with respective ones of the heart cams. When the hammer operating lever rotates in the first direction, the hammer lever causes the hammer portions to be disengaged from the heart cams.
Inventors:
Toshiyuki Fujiwara
Yasushi Ono
Shigeo Suzuki
Masayuki Kawada
Yasushi Ono
Shigeo Suzuki
Masayuki Kawada
Application Number:
JP2010271809A
Publication Date:
July 02, 2014
Filing Date:
December 06, 2010
Export Citation:
Assignee:
Seiko Instruments Inc.
International Classes:
G04F7/08; G04F8/02
Domestic Patent References:
| JP2009281969A | ||||
| JP2009150891A | ||||
| JP2006502384A | ||||
| JP2004294277A | ||||
| JP2004264036A | ||||
| JP9178868A |
Attorney, Agent or Firm:
Toru Tanikawa
Kentaro Kuhara
Noriaki Uchino
Nobuyuki Kimura
Kentaro Kuhara
Noriaki Uchino
Nobuyuki Kimura