Ear mount
An ear mount includes a body part mounted on a conchal cavity and an insertion part mounted on a cylindrical part and inserted into an ear canal. A cover configured to cover an inner housing of the body part with a protrusion formed thereon includes: a first end sealed and fixed to the inner housing; an intermediate part separated from the inner housing to form an air chamber between the intermediate part and the inner housing, and configured to cover the protrusion; a second end located opposite to the first end with the intermediate part therebetween; and an opening located at the second end and through which the cylindrical part is inserted. The ear mount includes a pressure regulator for controlling ventilation of air between the air chamber and an outer space through the opening in accordance with a pressure difference between the air chamber and the outer space.
1. An ear mount comprising:
a body part mounted on a conchal cavity in a use state, the body part including
a protrusion,
a cylindrical part extending from the protrusion,
an inner housing on which the protrusion is formed, and
a cover configured to cover the inner housing; and
an insertion part mounted on the cylindrical part and inserted into an ear canal in the use state,
wherein the cover includes
a first end sealed and fixed to the inner housing,
an intermediate part separated from the inner housing to form an air chamber between the intermediate part and the inner housing, and configured to cover the protrusion,
a second end located opposite to the first end with the intermediate part therebetween, and
an opening located at the second end and through which the cylindrical part is inserted, and
wherein the ear mount comprises a pressure regulator configured to control ventilation of air between the air chamber and an outer space through the opening in accordance with a pressure difference between the air chamber and the outer space.
2. The ear mount according to claim 1 , wherein the pressure regulator includes the opening, the intermediate part, and the protrusion.
3. The ear mount according to claim 2 , wherein
the pressure regulator includes a gap between the opening and the cylindrical part, and
the intermediate part is in close contact with the protrusion.
4. The ear mount according to claim 2 , wherein
the pressure regulator includes a thin flap arranged at a peripheral edge of the opening and having an inner diameter smaller than an outer diameter of the cylindrical part, and
the flap is in close contact with the cylindrical part.
5. The ear mount according to claim 1 , wherein the pressure regulator includes a vent resistor between the intermediate part and the protrusion.
6. The ear mount according to claim 1 , wherein
the intermediate part is in close contact with and covers the protrusion,
the pressure regulator includes
a gap between the opening and the cylindrical part, and
a groove arranged in the protrusion, having one end in communication with the gap, and having the other end toward which the groove extends in a direction away from the opening, and
the air chamber and the outer space are capable of communicating with each other via the groove.
7. The ear mount according to claim 6 , wherein
the groove includes a first groove and a second groove, and
a separation distance between the other end of the first groove and the opening is different from a separation distance between the other end of the second groove and the opening.