Protective helmet, especially for motorcyclists

The crash helmet consists of an inner lining inside a shell (1) .The sound-absorber especially for wind noise is in the form of a Helmholtz resonator incorporated inside (3,4,5) or outside the cladding, especially near the ears, but also as cheek-pad or neck cushion.

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Bibliographische Detailangaben
Hauptverfasser:	GEIB, WILLI, LINDENER, NORBERT, BORSOS, GUENTER, WOLF, ANTON, GAERTNER, UDO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR HATS HEAD COVERINGS HEADWEAR HUMAN NECESSITIES METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS SOUND-PRODUCING DEVICES
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Beschreibung
Zusammenfassung:	The crash helmet consists of an inner lining inside a shell (1) .The sound-absorber especially for wind noise is in the form of a Helmholtz resonator incorporated inside (3,4,5) or outside the cladding, especially near the ears, but also as cheek-pad or neck cushion.