Horology: time measuring systems or devices – Cases – With protection means
Reexamination Certificate
2007-08-14
2007-08-14
Miska, Vit (Department: 2833)
Horology: time measuring systems or devices
Cases
With protection means
C368S290000, C368S308000, C368S319000
Reexamination Certificate
active
11332561
ABSTRACT:
To provide a portable timepiece having high durability constructed by a constitution capable of promoting operability of attaching and detaching a crown and holding a crown in an unoperated state so as not to rotate the crown unpreparedly. In a winding stem pipe attached to a case body, a crown urged in a direction of separating from the case body by a coil spring (urging member) included in a crown cylinder portion of the pipe is removably provided to a case body outside projected portion of the winding stem pipe. An outer periphery of the case body outside projected portion is formed with a plurality of communicating grooves along a rotational direction of the crown, a plurality of attaching and detaching through grooves communicated to the communicating grooves and opened to an end face of the case body outside projected portion, and a plurality of holding grooves communicated with the communicating grooves and formed in a dead end state and contiguous to the through grooves. A plurality of engaging projected portion brought to and from the respective grooves are provided at a cover portion of the crown covering the case body outside projected portion.
REFERENCES:
patent: 6126309 (2000-10-01), Bettelini et al.
patent: 7025494 (2006-04-01), Oomori et al.
patent: 7192182 (2007-03-01), Hiranuma et al.
patent: 7192184 (2007-03-01), Hiranuma et al.
patent: 2004/0071049 (2004-04-01), Hiranuma et al.
Hiranuma Haruki
Omori Nobukazu
Miska Vit
Phan Thanh S.
Seiko Instruments Inc.
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