Headphone and helmet assembly

1. A detachable assembly, comprising:

headphones, including a headband, ear cups, and a housing, the housing defining legs extending between each of the ear cups and the headband;

a helmet for protecting a user, the helmet including a chinstrap, a shell, and a pair of ear cup receiving apertures extending fully through the shell; and

a locking assembly configured to removably attach the headphones to the helmet in a locked position;

wherein the pair of ear cup receiving apertures is configured to receive a respective one of the ear cups at least partially therethrough in the locked position;

wherein in the locked position, the headphones are locked horizontally such that a longitudinal axis of the headphones lies at a locking angle that is ±20° from a second axis, the second axis extending from the user's eye and ear when the helmet is on the user, the longitudinal axis extending between each ear cup to a central apex of the headband;

wherein the locking assembly is a rotational locking assembly having one or more rotational latch members and one or more fixed catch members;

wherein the one or more rotational latch members are disposed within the helmet and the one or more fixed catch members are located on the ear cups.

2. The detachable assembly of claim 1 , wherein at least a portion of the legs of the headphones is disposed within the shell of the helmet in the locked position.

3. The detachable assembly of claim 1 , wherein the locking assembly includes one or more male members and one or more female members configured to mate with the one or more male members;

wherein the one or more male members are located adjacent the pair of ear cup receiving apertures; and

wherein the one or more female members are located on the ear cups.

4. The detachable assembly of claim 1 , wherein the helmet includes a trough disposed on an inner surface of the helmet, the trough receiving one or more of the following in the locked position: the legs and the headband of the helmet.

5. The detachable assembly of claim 1 , wherein the locking assembly includes one or more flexible mating features that interlock with one another in a frictional manner.

6. The detachable assembly of claim 1 , wherein the one or more rotational latch members includes two disks, each of the two disks having a central aperture defined by an inner edge, each of the two disks being rotationally mounted about each of the pair of ear cup receiving apertures between an unlocked position and the locked position.

7. The detachable assembly of claim 6 , wherein the central aperture is concentric with each of the pair of ear cup receiving apertures.

8. The detachable assembly of claim 6 , wherein in the unlocked position, the inner edge is located fully about each one of the pair of ear cup receiving apertures, and in the locked position, the inner edge is positioned at least partially within each one of the pair of ear cup receiving apertures.

9. The detachable assembly of claim 8 , wherein the one or more rotational latch members includes an arm disposed outside of the helmet and configured to allow the user to rotate the one or more rotational latch members between the locked position and the unlocked position.

10. The detachable assembly of claim 9 , wherein in the locked position the arm is located closer to the headband than in the unlocked position.

11. The detachable assembly of claim 1 , wherein rotating the ear cups about the pair of ear cup receiving apertures moves the headphones between an unlocked position and the locked position.

12. The detachable assembly of claim 1 , further comprising a headphone leg locking assembly including male latch members located on the helmet, and female catch members located on the legs, the male latch members being configured to removably attach the legs to an inner surface of the helmet in the locked position.

13. The detachable assembly of claim 1 , further comprising an alignment feature configured to align the headphones relative to the helmet in the locked position, the alignment feature including a side edge of the headband that is configured to mate with a rear exterior edge of the helmet.

14. The detachable assembly of claim 1 , wherein at least one of the ear cups includes an input control device configured to control a media source.

15. The detachable assembly of claim 14 , wherein at least one of the ear cups includes an inner piece and an outer piece, the inner piece housing a speaker for playing sound from the media source, the outer piece including a rotational element configured to rotate relative to the inner piece;

wherein the input control device includes the rotational element, and wherein rotating the rotational element relative to the inner piece adjusts a volume of media being played by the media source.

16. The detachable assembly of claim 15 , wherein the rotational element includes a plurality of teeth;

wherein the input control device includes a first sensor element and a second sensor element disposed on opposite sides of the plurality of teeth.

17. The detachable assembly of claim 16 , wherein the first sensor element includes an infrared emitter and the second sensor element includes two or more light detectors.

18. The detachable assembly of claim 1 , wherein a bottom portion of the legs adjacent each of the ear cups are angled such that the ear cups are fixed in a non-parallel position that corresponds to an angled outer surface of the shell of the helmet.

19. The detachable assembly of claim 18 , wherein each of the ear cups are angled relative to the headband at an angle between 2-5°.

20. The detachable assembly of claim 18 , wherein the ear cups include an inner portion and an outer portion, the inner portion being pivotably mounted to the inner portion.

21. The detachable assembly of claim 20 , wherein the inner portion is capable of pivoting to a pivoting position that is up to 2-6° from an unpivoted position.

22. A detachable assembly, comprising:

headphones, including a headband, ear cups, and a housing, the housing defining legs extending between each of the ear cups and the headband;

a helmet for protecting a user, the helmet including a chinstrap, a shell, and a pair of ear cup receiving apertures extending fully through the shell; and

a locking assembly configured to removably attach the headphones to the helmet in a locked position;

wherein the pair of ear cup receiving apertures is configured to receive a respective one of the ear cups at least partially therethrough in the locked position;

wherein in the locked position, the headphones are locked horizontally such that a longitudinal axis of the headphones lies at a locking angle that is ±20° from a second axis, the second axis extending from the user's eye and ear when the helmet is on the user, the longitudinal axis extending between each ear cup to a central apex of the headband;

wherein at least one of the ear cups includes an input control device configured to control a media source;

wherein at least one of the ear cups includes an inner piece and an outer piece, the inner piece housing a speaker for playing sound from the media source, the outer piece including a rotational element configured to rotate relative to the inner piece;

wherein the input control device includes the rotational element, and wherein rotating the rotational element relative to the inner piece adjusts a volume of media being played by the media source;

wherein the rotational element includes a plurality of teeth;

wherein the input control device includes a first sensor element and a second sensor element disposed on opposite sides of the plurality of teeth.

23. The detachable assembly of claim 22 , wherein at least a portion of the legs of the headphones is disposed within the shell of the helmet in the locked position.

24. The detachable assembly of claim 22 , wherein the locking assembly includes one or more male members and one or more female members configured to mate with the one or more male members;

wherein the one or more male members are located adjacent the pair of ear cup receiving apertures; and

wherein the one or more female members are located on the ear cups.

25. The detachable assembly of claim 22 , wherein the helmet includes a trough disposed on an inner surface of the helmet, the trough receiving one or more of the following in the locked position: the legs and the headband of the helmet.

26. The detachable assembly of claim 22 , wherein the first sensor element includes an infrared emitter and the second sensor element includes two or more light detectors.

27. The detachable assembly of claim 22 , wherein the locking assembly is a biased locking assembly having one or more slidable male members that are biased toward one or more female members in the locked position.