Cushion

Abstract

The present invention aims at solving a problem of providing a cushion body that, when mounted by a person, is capable of changing into various shapes along an outer contour of the person or in accordance with the person's wishes. The problem is solved by a pillow including at least a bag body, at least a part of which is stretchable; and a filler material in the bag body, wherein the pillow is used by a person, the filler material includes foam beads; a space, in which the filler material is absent, is formed in a top section of the pillow at a length of 1/10 to ⅔ of a maximum length of the pillow, when the pillow is placed upright on a floor such that a maximum length direction of the pillow becomes parallel to a direction of gravity and a peak section of the pillow is extended upward such that an area of contact between the floor and the pillow is invariable; and buttocks reach to a bottom of the pillow when the person lies down such that at least the buttocks reach to the pillow that is placed on the floor such that the maximum length direction becomes parallel.

What is claimed is: 
     
         1 . A pillow comprising at least a bag body, at least a part of which is stretchable, and a filler material in the bag body,
 wherein the pillow is used by a person,
 the filler material includes foam beads, 
   a space, in which the filler material is absent, is formed in a top section of the pillow at a length of 1/10 to ⅔ of a maximum length of the pillow, when the pillow is placed upright on a floor such that a maximum length direction of the pillow becomes parallel to a direction of gravity and a peak section of the pillow is extended upward such that an area of contact between the floor and the pillow is invariable, and   buttocks reach to a bottom of the pillow when the person lies down such that at least the buttocks reach to the pillow that is placed on the floor such that the maximum length direction becomes parallel.   
     
     
         2 . The pillow of  claim 1 ,
 wherein the pillow comprises at least a bag body, at least a part of which is stretchable, and a filler material in the bag body,   wherein the pillow is used by a person,
 the filler material includes foam beads, 
   a space, in which the filler material is absent, is formed in a top section of the pillow at a length of 1/10 to ⅔ of a maximum length of the pillow, when the pillow is placed upright on a floor such that a maximum length direction of the pillow becomes parallel to a direction of gravity and a peak section of the pillow is extended upward such that an area of contact between the floor and the pillow is invariable,   buttocks reach to a bottom of the pillow when the person lies down such that at least the buttocks reach to the pillow that is placed on the floor such that the maximum length direction becomes parallel, and   when the person rolls over on the pillow, the foam beads being present under the buttocks serve as rolling elements, thereby enabling the person to roll over easily.   
     
     
         3 . The pillow of  claim 1 ,
 wherein the pillow placed on the floor swells on a left and a right of the buttocks by a movement of the foam beads, and   when the person rolls over, left and right swells are maintained and a position in plan view of the buttocks is substantially identical before and after the person rolls over, by stretchability of the bag body and a role of the foam beads as the rolling elements.   
     
     
         4 . The pillow of  claim 1 , wherein when the person lies on the pillow via cloth in a supine or prone position and then a someone else pulls the cloth, the filler material being present under the cloth serves as the rolling elements, and thereby a body posture is easily changed with a small force and a plan position of the buttocks is substantially identical before and after the pulling. 
     
     
         5 . The pillow of  claim 1 , further comprising a recess formed by the filler material moving such that the buttocks reach to the bottom of the pillow and an upper half of a body and thighs do not reach to the bottom in a state in which the person lies down such that at least the buttocks reach to the pillow. 
     
     
         6 . The pillow of  claim 1 , wherein the maximum length of the pillow is 20 cm to 3 m. 
     
     
         7 . The pillow of  claim 1 , wherein when the pillow is placed on a floor surface such that the maximum length direction becomes parallel to the floor surface and the person lies on the pillow in a supine position, the pillow has such a size as to be capable of mounting thereon a part from a head to the buttocks. 
     
     
         8 . The pillow of  claim 1 , wherein the bag body has a stretchability of 10 to 500%. 
     
     
         9 . The pillow of  claim 1 , wherein the person is an adult. 
     
     
         10 . The pillow of  claim 1 ,
 wherein the pillow being a pillow comprises at least a bag body, at least a part of which is stretchable, and a filler material in the bag body,   a space, in which the filler material is absent, is formed in a top section of the pillow at a length of 1/10 to ⅔ of a maximum length of the pillow, when the pillow is placed upright on a floor such that a maximum length direction of the pillow becomes parallel to a direction of gravity and a peak section of the pillow is extended upward such that an area of contact between the floor and the pillow is invariable, and   when a disc with a diameter of 20 cm is placed on the pillow and a force of 1 to 20 kg is applied to the disc in the direction of gravity, the disc reaches to the bottom of the pillow.