Title:
HELMET
Document Type and Number:
WIPO Patent Application WO/2006/126282
Kind Code:
A1
Abstract:
A helmet capable of efficiently driving a helmet body in the form of a diaphragm. The helmet (1) comprises a helmet body (3), drive devices (5L) and (5R) having a vibration part (31) with a tubular voice coil winding part (51) on which a voice coil (47) is wound and a magnetic member (45) inserted into the voice coil winding part (51) and engaged with the voice coil winding part (51) in a non-contact state, and a housing (9) fixing the magnetic member (45) of the drive devices (5L) and (5R) to the helmet body (3). In the fixed state of the magnetic member (45) to the helmet body (3), the vibration part (31) comes into contact with the helmet body (3) to drive the helmet body (3) in the form of the diaphragm.
Inventors:
Matsumoto, Hirokazu (903 3-3-52, Nishiiwata HigashiOsaka-sh, Osaka 47, 57809, JP)
Application Number:
PCT/JP2005/010015
Publication Date:
November 30, 2006
Filing Date:
May 25, 2005
Export Citation:
Assignee:
Matsumoto, Hirokazu (903 3-3-52, Nishiiwata HigashiOsaka-sh, Osaka 47, 57809, JP)
International Classes:
A42B3/30
Attorney, Agent or Firm:
Morimoto, Naoyuki (Tanimachi Center Build, 2-4-5 Tanimachi, Chuo-ku, Osaka-sh, Osaka 12, 54000, JP)
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