Provided with a bag body and a plurality of accommodated members housed therein, provided with a cervical spine support part to support cervical spine; an occipital support part to support an occiput, having a smaller height than the cervical spine support part and connected to the cervical spine support part; and two temporal head support parts to support a temporal head, connected to the cervical spine support part and arranged to put the occipital support part from both side in, a soft filler material filling a front pouch forming the cervical spine support part and a granular filler material filling a back pouch, the granular filler material housed in a front filler material of the temporal head support part, a sheet-like molded body housed on a back side of the occipital support part from a back side of the temporal head support part.
1 . A pillow configured to support a head of a human body in a supine posture, the pillow comprising;
a bag body and a plurality of kinds of accommodated members housed in the bag body,
a cervical spine support part provided along a width direction to support a cervical spine;
an occipital support part connected to a rear edge of the cervical spine support part at a center except for at both ends in the width direction of the cervical spine support part to support an occiput, and the occipital support part extending toward a rear of the pillow; and
two temporal head support parts connected to a first and second end of the rear edge of the cervical spine support part and connected to a first side edge and a second side edge of the occipital support part extending toward the rear of the pillow to support a temporal region of the head,
wherein
the cervical spine support part is provided with a top along the width direction; a thinnest part with a smallest height is provided in the occipital support part; surfaces of the two temporal head support parts slope downward toward the rear of the pillow and the surfaces from the temporal head support parts to the occipital support part slope downward toward the thinnest part, wherein
the bag body is provided at least with a cervical spine front pouch and a cervical spine back pouch dividing the cervical spine support part into a front side layer and a back side layer; two temporal head front pouches forming a front side of the temporal head support parts; and a posterior back pouch that connects lower spaces of the temporal head front pouches through a lower space of the occipital support part; wherein
the accommodated members comprising a flexible soft filler material, a granular filler material with greater resilience than the soft filler material, and a sheet molded body; and the cervical spine front pouch is filled with the soft filler material, the cervical spine back pouch is filled with the granular filler material, and the posterior back pouch stores the sheet molded body; and wherein
in the cervical spine support part, the cervical spine front pouch and the cervical spine back pouch are joined at their front edge, and a first dimension of the back side layer is smaller than a second dimension of the front side layer.
2 . The pillow according to claim 1 , wherein
the granular filler material is filled in the temporal head front pouches, a filling density in the temporal head front pouches is smaller than a filling density in the cervical spine back pouch, and the granular filler material is possible to move within the temporal head front pouches.
3 . The pillow according to claim 1 , wherein
the surfaces of the temporal head support parts are formed with a first angle at a connection side with the cervical spine support part being larger than a second angle at a center, the second angle being an inclination angle to a horizontal plane.
4 . The pillow according to claim 1 , wherein
the height of the thinnest part of the occipital support part is between 1 cm and 2 cm, and
a height of the top of the cervical spine support part is between 3 times and 9 times the height of the occipital support part.
5 . The pillow according to claim 1 , wherein
when the pillow is compressed to a maximum load of 6 kgf at a speed of 10 mm/min using a 100 mm diameter disc-shaped compression jig, a linearity of compression property of the cervical spine support part is LC 1 , a linearity of compression property of the temporal head support part is LC 2 , a compression workload of the cervical spine support part is WC 1 (mm·gf/78.5 cm 2 ), a compression workload of the temporal head support parts is WC 2 (mm·gf/78.5 cm 2 ), a recovery amount of compression of the cervical spine support part is RC 1 (%), and a recovery amount of compression of the temporal head support parts is RC 2 (%), LC 1 <LC 2 , WC 1 >WC 2 , and RC 1 >RC 2 .