| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pillow which uses a link mechanism and whose height when lying on his/her back is adjustable independent of urging force. Ž<P>SOLUTION: The pillow 1 has a flat head placement member 2 having a rectangular parallelepiped shape having an inside cavity 2a, and an urging device 4 provided in the cavity for urging a portion above the cavity 2a in the head placement member 2 upwards and supporting the portion above the cavity in that state. The urging device 4 includes: rectangular link mechanisms 6, 6 which includes lower side links 7, 7, front side links 8, 8, rear side links 9, 9, and upper side links 10, 10; tension springs 17, 17 for urging the rectangular link mechanisms 6, 6 so as to return the upper side links 10, 10 displaced downward when the head of a user is placed on the head placement member 2 to the original positions; and a height adjusting means which has cams 19, 19 for adjusting the height of an abutment part by being lowered by its own weight of the head against the urging force of the tension springs 17, 17 when the head is placed on the head placement member 2 and lying on his/her back, and adjusts the height of the upper side links 10, 10. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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