US 2020/0053467 A1Published application

Speaker

AssigneeSound Fun Corporation

InventorsKazunori SATO, Nobuhiro MIYAHARA, Yoshio SAKAMOTO

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Abstract

[Problem] To provide a speaker that is capable of emitting higher-volume and clearer sounds which hard-of-hearing individuals and hearing individuals can hear together without inconvenience by not suppressing vibration of the curved diaphragm and therefore efficiently transmitting kinetic energy converted from the electric energy of a sound signal to a curved diaphragm, and also has a reduced weight and size and is easy to manufacture. [Solution] A speaker 10 of the present invention includes: a diaphragm 1 curved in one direction; a driver unit 2 that vibrates the diaphragm in accordance with an inputted electric signal; and a frame body 3 supporting the diaphragm and the driver unit. One end side and another side of the diaphragm in the direction of curvature are attached to the frame body via edge parts 15 that do not interfere with the vibration. Also, the driver unit is in contact with one surface of the diaphragm and fixedly attached to the frame body.

Claims20

Dependent claims

A speaker comprising at least:

a diaphragm curved in one direction as extending from one end side to another end side;
a driver unit that vibrates the diaphragm in accordance with an inputted electric signal;
and
a frame body holding the diaphragm and the driver unit,
wherein
(i) only the one end side and the other end side of the diaphragm are attached to the frame body via edge parts having such hardness and shape as not to impair vibration, or
(ii) only the one end side and the other end side of the diaphragm are attached to the frame body via edge parts that elastically fix the one end side and the other end side, or
(iii) the one end side and the other end side of the diaphragm are attached to the frame body via edge parts having such hardness and shape, as not to impair vibration, and a side end of the diaphragm extending along a direction of curvature has a clearance between the side end and the frame body, or
(iv) the one end side and the other end side of the diaphragm are attached to the frame body via edge parts that elastically fix the one end side and the other end side, and a side end of the diaphragm extending along a direction of curvature has a clearance between the side end and the frame body, and
the driver unit is in contact with one surface of the diaphragm and fixedly attached to the frame body.

7 more elements

Dependencies are inferred from the claim text.