Speaker diaphragm
AssigneeFoster Electric Company, Limited
InventorsShintaro Yamaki, Takashi Matsumura, Minoru Horiguchi
Life of this patent
Estimating the term…
Abstract
The present invention is configured such that, a ring member is bonded to a cone section formed on the outer circumference of a vibration plate body, and the inner circumferential section of an edge is bonded to the outer circumference section of the ring member or the cone section. Thus, the stiffness is increased without requiring a change in the shape of the vibration plate body, that is, the stiffness is improved without causing an increase in the weight of the vibration plate body, and a degradation in acoustic pressure at high frequencies is prevented.
Claims6
A speaker diaphragm comprising:
- a body member including a center cap part and a cone part on an outer periphery of the center cap part;
- a ring member joined to the cone part of the body member;
- and
- an edge having an inner periphery joined to an outer periphery of the ring member or an outer periphery of the cone part.
Dependencies are inferred from the claim text.