Headrest device and sound collecting device
To make it possible to provide an acoustic device in a headrest device such that a standard of a shock is satisfied and the performance of the acoustic device can be efficiently exhibited. In the headrest device, a shock resistant surface is formed in a core material of a headrest main body, an opening is formed in the shock resistant surface, and a non-contact type acoustic microphone is disposed on the inner side of the opening.
1. A headrest device comprising:
a headrest main body;
a shock resistant surface formed in a core material of the headrest main body;
a sound collecting section formed in a conical shape; and
a non-contact type acoustic microphone,
wherein an opening section is formed in the shock resistant surface, the sound collecting section is tapered from the opening section toward an inner side of the core material and collects sound, the non-contact type acoustic microphone is disposed on an inner side of the sound collecting section, and at least a portion of the sound collecting section is located between the opening section of the core material and the non-contact type acoustic microphone.
2. The headrest device according to claim 1 , wherein the acoustic microphone is disposed in a form adapted to a test performed using a head form provided for in details of a safety standard for a road transport vehicle.
3. The headrest device according to claim 1 , wherein the sound collecting section is formed in a substantially circular conical shape.
4. The headrest device according to claim 1 , wherein the opening is formed on a front surface of the headrest main body.
5. The headrest device according to claim 1 , wherein
a plurality of acoustic speakers are disposed around the acoustic microphone, and
the acoustic speakers are disposed outward with respect to the acoustic microphone.
6. The headrest device according to claim 1 , wherein a front of the acoustic microphone is covered with a material that allows sound to easily pass.
7. The headrest device according to claim 1 , wherein a plurality of acoustic microphones are disposed side by side in a lateral direction.
8. The headrest device according to claim 1 , wherein a plurality of acoustic microphones are disposed side by side in a longitudinal direction.
9. A sound collecting device comprising:
an attachment section attached to a headrest stay that connects a headrest of a seat to a seat back section;
a fixing section directly fixed to a rear surface of the headrest stay;
a non-contact type acoustic microphone supported by the attachment section,
wherein the fixing section and the non-contact type acoustic microphone are provided on a front surface of the attachment section, so that the sound collecting device is disposed at a rear surface side of the headrest stay.
10. The sound collecting device according to claim 9 , wherein
the attachment section includes a sound collecting section opened to a seated person side, and
the acoustic microphone is disposed in the sound collecting section.
11. The sound collecting device according to claim 10 , wherein the sound collecting section is formed in one of a substantially conical shape and a substantially pyramidal shape.
12. The sound collecting device according to claim 9 , wherein
the attachment section is attached between a pair of the headrest stays, and
the acoustic microphone is disposed in an intermediate section between the pair of headrest stays.
13. The sound collecting device according to claim 9 , wherein a plurality of acoustic microphones are disposed side by side in a lateral direction.
14. The sound collecting device according to claim 9 , wherein a plurality of acoustic microphones are disposed side by side in a longitudinal direction.