Double hearing protection device
View Patent ↗A double hearing protection system comprises a circumaural hearing protector that covers and encircles the pinnae and an earplug device that is inserted into the ear canal. The earplug portion of the system comprises a tether that is coupled to the interior of a circumaural hearing protector. The tether retracts into the earcup when both the earplug and circumaural hearing protector are worn, ensuring that the earseal against the head is not broken by the retractable tether.
1. A double hearing protection device comprising:
a circumaural hearing protector, wherein the circumaural hearing protector comprises an earcup adapted for covering a pinna of a user, and wherein the earcup comprises an interior attachment point;
an earplug device adapted for manual insertion into an ear canal of a user;
a tether assembly, wherein the tether assembly comprises an earplug termination and an earcup termination, and wherein the tether assembly is adapted for:
attaching to the earplug device at the earplug termination;
removably attaching to the interior attachment point of the earcup at the earcup termination; and
retracting for storage inside the earcup when the earcup is placed over the earplug device and over the pinna of the user.
2. The double hearing protection device of claim 1 , wherein the tether assembly is coiled.
3. The double hearing protection device of claim 1 , wherein the tether assembly comprises a strength member.
4. The double hearing protection device of claim 3 , wherein the strength member is selected from the group consisting of aramid and Kevlar.
5. The double hearing protection device of claim 1 , wherein the interior attachment point comprises a spherical chamber, wherein the earcup termination comprises a spherical termination, and wherein the spherical termination is adapted to mate with the spherical chamber.
6. The double hearing protection device of claim 1 , wherein the earplug device is a passive hearing protection device.
7. The double hearing protection device of claim 1 , wherein the tether assembly comprises an electrical conductor, wherein the earcup and the earplug device are adapted to exchange electrical signals via the electrical conductor, wherein the earcup termination comprises a first electrical connector, and wherein the interior attachment point comprises a second electrical connector adapted for mating with the first electrical connector.
8. The double hearing protection device of claim 7 , wherein the electrical signals comprise audio signals generated by an audio source and wherein the earplug device comprises a transducer adapted for receiving the audio signals.
9. The double hearing protection device of claim 8 , wherein the electrical audio source is selected from a group comprising a microphone, a radio, an intercom, an amplifier, and a sound conditioning circuit.
10. The double hearing protection device of claim 1 , wherein the earplug device is further adapted to provide active noise control in the ear canal.
11. The double hearing protection device of claim 1 , wherein the circumaural hearing protection device further comprises a headband adapted for retaining the earcup in a position that encircles the pinna of the user, and wherein the earcup further comprises an external attaching mechanism adapted for connecting the earcup to the headband, and wherein the external attaching mechanism is adapted for:
moving the earcup into a first position that covers the pinna of the user;
moving the earcup into a second position displaced from the pinna of the user without removing the headband;
locking the earcup in the first position; and
locking the earcup in the second position.
12. The double hearing protection device of claim 11 , wherein the external attaching mechanism comprises a hinge, and wherein the earcup is adapted to rotate upward relative to the pinna to the second position.
13. The double hearing protection device of claim 11 , wherein the external attaching mechanism comprises a hinge, and wherein the earcup is adapted to rest orthogonally from the pinna in the second position.
14. The double hearing protection device of claim 1 ,
wherein the interior attachment point comprises a first molded feature and wherein the earcup termination comprises a second molded feature, and wherein the second molded feature is adapted to mate with the first molded feature, and
wherein the earplug termination comprises a third molded feature comprising a bend relief and wherein the third molded feature is adapted for bonding to the earplug device.
15. The double hearing protection device of claim 14 , wherein the tether assembly comprises a strength member, and wherein the strength member is adapted for bonding to the second molded feature and to the earplug device.