Earphone device with ear canal protrusion

1. An earphone device comprising a main body to be inserted in to the outer ear canal of a user, the ear canal having an upper and lower portion as defined when worn in an upright user, the main body of the device having a first side that faces the user's head when inserted, a cavity and a sound opening connecting the first side with the cavity, the main body further comprises an ear canal protrusion, having an upper and lower edge, to be inserted into the entrance of the ear canal, wherein the cross section of the ear canal protrusion is smaller than the cross section of the ear canal and that the ear canal protrusion is having a first side adapted to lie against the ear canal wall and a second side lying opposite the first side and beside the sound opening; said sound opening being offset in said protrusion to be immediately adjacent said lower edge and wherein the second side of the ear canal protrusion has a peripheral edge which is symmetric about a vertical axis bisecting the second side into two portions, and wherein each portion has a convex profile extending into the ear canal, said side portions being joined together at the lower edge by a concave central portion which is less intrusive of the ear canal than said convex portions, so that high frequency sound absorption by the main body is minimized.

2. An earphone device according to claim 1 , wherein the second side of the ear canal protrusion is bordering the periphery of the sound opening.

3. An earphone device according to claim 1 , wherein the ear canal protrusion extends along a part of the sound openings periphery.

4. An earphone device according to claim 1 , wherein the first side of the ear canal protrusion is convex seen in cross-section perpendicular to axis (X) of the sound opening.

5. An earphone device according to claim 4 , wherein the second side of the ear canal protrusion is concave seen in cross-section perpendicular to the axis (X) of the sound opening.

6. An earphone device according to claim 1 , wherein the earphone device comprises a conchal wall stabilizer extending from the main body and adapted to engage the conchal wall of the ear wherein the conchal wall stabilizer extends from the main body and adapted to engage the conchal wall of the ear, said conchal wall being a resilient tubular structure attached having two ends both being attached to the main body at spaced apart points thereon and thereby forming a deflectable arch which may adapt to the variable shapes and sizes of a users ear.

7. An earphone device according to claim 6 , wherein the conchal wall stabilizer extends from the main body in a direction essentially opposite the first side of the ear canal protrusion, such that the earphone device can be firmly fixed between the ear canal wail and the conchal wall.

8. An earphone device according to claim 7 , wherein the conchal wall stabilizer is loop shaped defining an opening between the stabilizer and main body so that deflection of the stabilizer will be free to fill the opening.

9. An earphone device according to claim 6 , wherein the main body, the ear canal protrusion and the conchal wall stabilizer are moulded in one piece of a flexible material.

10. An earphone device according to claim 1 , wherein the main body has a second side that faces away from the user's head when inserted and that the cavity is provided in the second side and is adapted for holding an earphone speaker housing.

11. An earphone device according to claim 1 , wherein the sound opening has a diameter of at least 3 mm, preferably at least 4 mm.

12. An earphone device comprising a main body to be inserted in to the outer ear canal of a user, the ear canal having an upper are lower portion in an upright user, the main body of the device having a first side that faces the user's head when inserted, a cavity and a sound opening connecting the first side with the cavity, the main body further comprises an ear canal protrusion, having an upper and lower edge, to be inserted into the entrance of the ear canal, wherein the cross section of the ear canal protrusion is smaller than the cross section of the ear canal and that the ear canal protrusion is having a first side adapted to lie against the ear canal wall and a second side lying opposite the first side and beside the sound opening; and wherein the earphone device includes a conchal wall stabilizer extending from the main body and adapted to engage the conchal wall of the ear, said conchal wall stabilizer being a resilient tubular structure attached having two ends both being attached to the main body a spaced apart points thereon and thereby forming a deflectable arch which may adapt to the variable shapes and sizes of a users ear.

13. An earphone device according to claim 12 , wherein the main body, the ear canal protrusion and the conchal wall stabilizer are moulded in one piece of a flexible material.

14. An earphone device according to claim 12 , wherein the conchal wall stabilizer is a resilient tubular structure which is compressible and deflectable.