Patent ID: 8213644

Claim:
A vibration speaker delivers sound in a form of vibrational movement to a user's facial skin nearby ears, the vibration speaker comprising: a voice coil ( 30 ) for generating a magnetic force in response to a sound signal from an exterior; a magnet ( 50 ) having a predetermined magnetic force for interacting with the magnetic force from the voice coil ( 30 ); a basket ( 60 ) for mounting the magnet ( 50 ); a rear cover ( 90 ) for coupling to a face plate ( 20 ) to form a shape of the vibration speaker; the face plate ( 20 ) consisting of an outer rim ( 21 ) having an annular shape with a flat surface for contacting on the user's face, a central dome ( 22 ) having a convex shape, and an integral tensioner ( 25 ) disposed between the outer rim ( 21 ) and the central dome ( 22 ), wherein said integral tensioner ( 25 ) consisting of a circular outer rim ( 26 ), a plurality of support branches ( 27 ) arranged with a constant interval around said central dome ( 22 ), and a plurality of linkages ( 28 ) for suspending said circular outer rim ( 26 ) and said central dome ( 22 ) to adjust the sound stress; and a tensioner ( 80 ) consisting of an inner annular ring ( 82 ) for inserting the basket ( 60 ), an outer ring ( 81 ), a plurality of spiral suspenders ( 83 ) disposed between the inner ring ( 82 ) and the outer ring ( 81 ) and an insertion rib ( 84 ) with an insertion hole ( 85 ), wherein said tensioner ( 80 ) is coupled to said face plate ( 20 ) to constrain vibrational elements (voice coil ( 30 ), magnet ( 50 ) and basket ( 60 )) for pre-tensioning, so that said face plate ( 20 ) is maintained in a horizontal state to control upward and downward vibrational movement delivered from the vibration speaker.