Earphone device and earphone device main body

1. An earphone device, comprising:

a case main body;

a sound conduit formed in a substantially tubular shape and protruding from the case main body, the sound conduit having a flange disposed at the end on the opposite side from the case main body, and a first restrictor disposed between the flange and the case main body; and

an ear tip having a ring part formed of a resilient material and configured to be engaged to the sound conduit, the ear tip configured to be in a first state in which movement in the direction of removal from the sound conduit is restricted by the flange, and configured to be in a second state in which movement in the direction of removal from the sound conduit is restricted by the first restrictor.

2. The earphone device according to claim 1 ,

wherein the length of a first outer periphery of the sound conduit at the position of the first restrictor is greater than the length of the inner periphery of the ring part, and

in the first state of the ear tip, the inner periphery of the ring part is in contact with at least part of the first outer periphery.

3. The earphone device according to claim 2 ,

wherein the first restrictor has a shape protruding in the radial direction of the sound conduit, and forms at least part of the first outer periphery.

4. The earphone device according to claim 2 ,

wherein the sound conduit has a second restrictor disposed between the first restrictor and the case main body,

the length of a second outer periphery of the sound conduit at the position of the second restrictor is greater than the length of the inner periphery of the ring part, and

in the second state of the ear tip, the inner periphery of the ring part is in contact with at least part of the second outer periphery.

5. The earphone device according to claim 4 ,

wherein, in the first state, movement of the ear tip to the case main body side is restricted by contact with the second restrictor.

6. The earphone device according to claim 5 ,

wherein, in the second state, movement of the ear tip to the case main body side is restricted by contact with the case main body.

7. The earphone device according to claim 5 ,

wherein the first restrictor has a shape protruding in the radial direction of the sound conduit, and forms at least part of the first outer periphery.

8. The earphone device according to claim 4 ,

wherein, in the second state, movement of the ear tip to the case main body side is restricted by contact with the case main body.

9. The earphone device according to claim 4 ,

wherein the first restrictor has a shape protruding in the radial direction of the sound conduit, and forms at least part of the first outer periphery.

10. The earphone device according claim 4 ,

wherein the second restrictor has a shape protruding in the radial direction of the sound conduit, and forms at least part of the second outer periphery.

11. The earphone device according to claim 4 ,

wherein the first restrictor has a pair of first protrusions opposite each other with the center line of the sound conduit in between,

the second restrictor has a pair of second protrusions opposite each other with the center line of the sound conduit in between, and

the direction in which the first protrusions face each other is shifted from the direction in which the second protrusions face each other.

12. The earphone device according to claim 1 ,

wherein the sound conduit has a second restrictor disposed between the first restrictor and the case main body,

the length of a second outer periphery of the sound conduit at the position of the second restrictor is greater than the length of the inner periphery of the ring part, and

in the second state of the ear tip, the inner periphery of the ring part is in contact with at least part of the second outer periphery.

13. The earphone device according to claim 12 ,

wherein, in the first state, movement of the ear tip to the case main body side is restricted by contact with the second restrictor.

14. The earphone device according to claim 13 ,

wherein, in the second state, movement of the ear tip to the case main body side is restricted by contact with the case main body.

15. The earphone device according to claim 13 ,

wherein the first restrictor has a shape protruding in the radial direction of the sound conduit, and forms at least part of the first outer periphery.

16. The earphone device according to claim 13 ,

wherein the first restrictor has a pair of first protrusions opposite each other with the center line of the sound conduit in between,

the second restrictor has a pair of second protrusions opposite each other with the center line of the sound conduit in between, and

the direction in which the first protrusions face each other is shifted from the direction in which the second protrusions face each other.

17. The earphone device according to claim 12 ,

wherein, in the second state, movement of the ear tip to the case main body side is restricted by contact with the case main body.

18. The earphone device according claim 12 ,

wherein the second restrictor has a shape protruding in the radial direction of the sound conduit, and forms at least part of the second outer periphery.

19. The earphone device according to claim 12 ,

wherein the first restrictor has a pair of first protrusions opposite each other with the center line of the sound conduit in between,

the second restrictor has a pair of second protrusions opposite each other with the center line of the sound conduit in between, and

the direction in which the first protrusions face each other is shifted from the direction in which the second protrusions face each other.

20. The earphone device according to claim 12 ,

wherein the first restrictor has a shape protruding in the radial direction of the sound conduit, and forms at least part of the first outer periphery.