Earphone device with bi-stable conchal wall stabilizer

1. An earphone device comprising a main body to be inserted in the outer ear of a user, a conchal wall stabilizer extending from the main body and adapted to engage the conchal wall of the ear, the conchal wall stabilizer being able to assume different positions in relation to the main body, characterised in that the conchal wall stabilizer is a bi-stable mechanism, which is movable from a first stable position via a dead point to a second stable position, wherein a bias element biases the conchal wall stabilizer towards the first stable position, when the conchal wall stabilizer is positioned on a first side of the dead point, and towards the second stable position, when the conchal wall stabilizer is positioned on a second side of the dead point and wherein the bias element comprises a spring with a first stable geometry corresponding to the first stable position and a second stable geometry corresponding to the second stable position.

2. An earphone device according to claim 1 , wherein the bias element comprises a leaf.

3. An earphone device according to claim 2 , wherein the leaf spring has a first side and a second side, wherein the first side is convex when the leaf spring assumes the first stable geometry, and concave when the leaf spring assumes the second stable geometry.

4. Earphone device according to claim 3 , wherein the leaf spring is substantially crescent shaped with a concave edge and a convex edge, wherein the leaf spring along the concave edge is fastened to the main body.

5. Earphone device according to claim 4 , wherein the leaf spring includes a convex edge and along the convex edge is fastened to an outer, loop-shaped part.

6. Earphone device according to claim 5 , wherein the outer part is thicker than the leaf spring.

7. An earphone device according to claim 1 , wherein the conchal wall stabilizer is movable in a direction to and from the user's head when inserted in to the ear of the user.

8. An earphone device according to claim 7 , wherein the main body has first side that faces the user's head when inserted, and a second side that faces away from the user's head when inserted and a circumferential portion connecting the first side and the second side, wherein the conchal wall stabilizer is connected to the circumferential portion.

9. An earphone device according to claim 8 , wherein a cavity is provided in the second side, which cavity is adapted for holding an earphone speaker housing.

10. An earphone device according to claim 1 , wherein the main body and the conchal wall stabilizer are moulded in one piece of a flexible material.