Title:
時計などの防水装置
Document Type and Number:
Japanese Patent JP4299955
Kind Code:
B2
Abstract:
The present invention concerns a watertight apparatus capable of being immersed in a liquid, for example a watertight watch, including a case (1) with an inner chamber (10) communicating with the exterior, the chamber being separated from the exterior by a membrane (17) which can be deformed, defining, on one side, a non-watertight outer zone and, on the other side, a watertight inner zone, in which is housed, in association with the membrane, an acoustic transducer (22), the membrane being fixed by its peripheral edge (17A) in the chamber (10) and applied via elastic memeber (20) towards its periphery, but at a distance from the edge, against a support surface (12) arranged in the inner chamber (10).This apparatus includes structure (40) for blocking the vibrations transmitted by the acoustic transducer to the deformable membrane, the structure being inserted between the peripheral fixing zone and the elastic member so as to assure good sound reproduction of the acoustic waves across the entire sound spectrum used.
Inventors:
Jean-Pierre Migno
Dominique Davnon
Dominique Davnon
Application Number:
JP2000185726A
Publication Date:
July 22, 2009
Filing Date:
June 21, 2000
Export Citation:
Assignee:
ASULAB SOCIETA ANONYME
International Classes:
G04B37/08; H04R1/00; G01V1/04; G04B37/00; G04C21/02; G10K11/00; H04R1/02; H04R1/44
Domestic Patent References:
| JP11133158A | ||||
| JP60077180U | ||||
| JP57104396A | ||||
| JP54109824A |
Attorney, Agent or Firm:
Masaki Yamakawa
Hiroro Kurokawa
Masayuki Konno
Osamu Nishiyama
Shigeki Yamakawa
Hiroro Kurokawa
Masayuki Konno
Osamu Nishiyama
Shigeki Yamakawa
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