| 摘要 |
PROBLEM TO BE SOLVED: To provide a headrest device which does not reduce safety of a seating person even when storing a secondary battery, because when the secondary battery is installed on the headrest device, gas generation or, ignition and blowout may occur in the vicinity of a head of the seating person.SOLUTION: A headrest device 10 comprises a storage space 28 which is partitioned by a partition plate part 25 in an inside space formed of a front side case 20 and a rear side case 21 of a cushion core material 12, and a secondary battery 35 is stored in the storage space 28. |
