Pillow

Abstract

A pillow (1) according to present invention comprises a body (3) including a concave portion (7) in a central part and a cold insulator (5) incorporated in the concave portion (7). The cold insulator (5) has a gel material enclosed in a bag member which is formed by an enclosing film. It is preferable that the body (3) should be formed of a rubber or a synthetic resin material and should have a flexibility and a restoring property for a deformation. It is more preferable that the gel material should be a hydrogel or a lipogel. Furthermore, a plurality of dents (9) is provided on the surfaces of the body (3) and the cold insulator (5). The pillow can hold and cool a head in such a shape as to conform to the shapes of a neck and a head, thereby casting no burden on a human body. A cooling function lasts long by the cold insulator (5) incorporated in the body (3). Plural kinds of cold insulators (5) to be incorporated can be retained and replaced, and can be regulated depending on a user and a situation.

Description

[0001] This application claims priority on Patent Application No. 2003-312629 filed in Japan on Sep. 4, 2003 BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a pillow. More particularly, the present invention relates to a pillow to be used for cooling a head. [0004] 2. Description of the Related Art [0005] Conventionally, a water pillow has been used for cooling a head of a person. The water pillow is troublesome to replace ice or water. For the replacement, a place, a vessel or the like for treating the water is required. In order to eliminate the troubles, various devises have been made. For example, Japanese Laid-Open Patent Publication No. 2002-330986 has described a pillow in which a capsule requiring no water is put. In place of the ice, the capsule is cooled and filled in the pillow for use. [0006] Japanese Laid-Open Patent Publication No. 2001-297 has described a pillow in which a cold insulator is accommodated in a pocket ...

AI Technical Summary

Benefits of technology

[0008] The shape of a pillow which conforms to a cervical vertebrae in the same manner as a stand-up posture is better because it does not cause a body to carry a burden. For this purpose, it is necessary to hold a stability and a comfort to sleep when a head is put on the pillow while maintaining the shape of the pillow formed to be constant. In order to maintain the shape of the pillow, it is necessary to cause the pillow to have a restoring property. Both the pillow and a package are deformed according to the motion of the head and have no shape holding function in the same manner as a conventional water pillow. On the other hand, if a shape holding capability is too large, a shape following property is poorer so that the stability of the head and the comfort to sleep are deteriorated. More specifically, a flexibility is required for the pillow in order to enhance the stability and the comfort to sleep. In consideration of the actual circumstances described above, it is an object of the present invention to provide a pillow in which a head can be held and cooled in such a shape as to conform to the shapes of a neck and a head so as not to cast a burden on a human body, the cooling can last long and a comfort to sleep can be enhanced.

[0010] It is preferable that the body should be formed of a rubber or a synthetic resin material and should have a flexibility and a restoring property for a deformation.

Problems solved by technology

On the other hand, if a shape holding capability is too large, a shape following property is poorer so that the stability of the head and the comfort to sleep are deteriorated.

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