JP2004089595A - Pillow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pillow capable of easily adjusting the height, having appropriate cushioning, preventing the pressure on the head and neck of a user as the load is dispersed, and preventing moisture or heat from filling the inside of the pillow. <P>SOLUTION: The pillow has cushion layers 3 layered on the upper surface and the lower surface of a core material 2. As the core material 2, air-tight sheet materials 5a and 5b are bonded around a foam material 6 with open-cell to enclose and seal the foam material, and an air intake 7 is formed at a prescribed part for a plug body 8 to be attached to/detached from the air intake. As the cushion layer 3, a highly air-permeable low impact resilience polyurethane foam material or soft foam material is used. On the other hand, the core material 2 may be an air bag body in which a prescribed space is enclosed and sealed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pillow whose height can be easily adjusted and which has good cushioning properties.
[0002]
[Prior art]
Conventionally, as a pillow in which the height of the pillow can be freely adjusted according to one's preference, for example, a plurality of pillow core units accommodated in a pillow bag can be put in and out, and each pillow core Combination pillows that can adjust the filling material such as buckwheat filling inside the unit are known. In such pillows, the number of filling materials and the number of pillow core units are adjusted by adjusting the number of pillow core units. The height is adjusted. (For example, refer to Patent Document 1).
[0003]
[Patent Document 1]
Registered Utility Model No. 30114999
[Problems to be solved by the invention]
However, there is a problem that the work of changing the height of the pillow by increasing or decreasing the filler or adjusting the number of pillow core units as described above is troublesome and troublesome.
As for the conditions of the pillow, it is more preferable that an appropriate cushioning property can be obtained, the load is dispersed, the head and the neck are not pressed, and moisture and heat trapped inside can be radiated.
[0005]
Therefore, the present invention allows the height of the pillow to be easily adjusted, provides an appropriate cushioning property, and distributes the load so that the head and neck are not pressed, and moisture or heat is generated inside. The purpose is to provide a pillow that does not stay closed.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a pillow in which a cushion layer is laminated on an upper surface and a lower surface of a core material, wherein, as the core material, an airtight sheet material is adhered around an open-cell foam material and hermetically sealed. In addition, an air intake port was provided at a predetermined portion to make the plug body detachable, and the cushion layer was made of a low-rebound polyurethane foam or a soft polyurethane foam.
[0007]
As described above, as the core material, an airtight sheet material is adhered to the periphery of the open-cell foam material, hermetically sealed and surrounded, and an air intake is provided at a predetermined portion, and a plug is detachably attached to the air intake. The height of the pillow can be changed simply by adjusting the charge or deaeration from the air intake, and the elasticity of the sealed air and the elasticity of the internal foam material are balanced as the core material. Cushioning properties can be obtained, and appropriate cushioning properties are secured in combination with the elasticity of the upper and lower cushion layers.
[0008]
Here, as a core material in which an air-tight sheet is adhered to the periphery of the open-cell foam material to hermetically surround and form an air intake port at a predetermined position, for example, Japanese Patent No. 2987036 proposed by the present applicant A self-expanding foam enclosure or the like is applicable. Examples of the open-cell foam material include a tensile strength of 0.5 kg / cm ² or more, an elongation of 150% or more, a tear strength of 0.20 kg or more, and a rebound resilience of 30 or more. % Or more, foam materials such as urethane, polyester, PVC, polyethylene, polybutadiene, and rubber can be used. Further, as the airtight sheet material, a sheet of polyvinyl chloride, polyethylene, polyacetate, polyvinyl alcohol, or the like is suitable, and as an adhesive for bonding these, epoxy-based, acrylic-based, rubber-based, urethane-based, etc. The well-known thermosetting adhesive is suitable.
[0009]
The low rebound polyurethane foam of the cushion layer refers to a polyurethane foam having a rebound resilience of 1 to 20% as measured by the method A of JIS K 6400 (1997), and a soft polyurethane foam having a hardness of 75 N or less. Refers to polyurethane foam.
When the cushion layer is made of a low-resilience polyurethane foam or a soft polyurethane foam, a soft feeling is obtained and the feel is good, and the load is evenly distributed so that there is no feeling of pressure on the head or neck.
At this time, the cushion layer may be combined by using one side of a low resilience polyurethane foam and the other side of a soft polyurethane foam.
[0010]
Further, according to the present invention, in a pillow in which a cushion layer is laminated on an upper surface and a lower surface of a core material, a predetermined space is hermetically sealed and surrounded by an air-tight sheet material as the core material, and an air intake port is formed in a predetermined portion to form a plug. The body was a detachable air sac, and the cushion layer was made of a low-resilience polyurethane foam or a soft polyurethane foam.
[0011]
In this way, as the core material, the air sac is made adjustable by taking in and out the air from the air intake, and the cushion layers are laminated on the upper and lower surfaces, so that the height of the pillow can be easily adjusted by taking the air in and out of the air sac. At the same time, as the core material, a cushioning property by the elasticity of the sealed air can be obtained, and an appropriate cushioning property is secured in combination with the elasticity of the upper and lower cushion layers.
[0012]
Further, in the present invention, the low-resilience polyurethane foam or the soft polyurethane foam of the cushion layer is made of a highly permeable material.
As described above, if the cushioning layer is made of a highly resilient polyurethane foam or a soft polyurethane foam made of a highly breathable material, a refreshing feeling can be obtained without the dampness or heat of sweat on the pillow.
[0013]
Here, the highly air-permeable polyurethane foam refers to a foam having an air permeability of 1 to 4.7 dm ³ / s measured by a method based on the method B of JIS K 6400 (1997). For example, a low resilience polyurethane foam as disclosed in Japanese Patent Application No. 2002-194132 can be used.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the accompanying drawings.
Here, FIG. 1 is a perspective view of a first configuration example of the pillow according to the present invention, FIG. 2 is an exploded perspective view showing an internal structure of the pillow, FIG. 3 is a cross-sectional view of the pillow, and FIG. FIG. 5 is an explanatory diagram of an example of the outline, and FIG. 5 is an explanatory diagram of a second configuration example of the pillow.
[0015]
The pillow according to the present invention can easily adjust the height, and also has an appropriate cushioning property, and the load is dispersed so that the head and neck are not pressed, and moisture and heat are generated inside. The air intake is formed in a foam envelope that is formed as a pillow that does not stay closed, and the core material is a foam enclosure that hermetically surrounds a foam material, or an air bag that hermetically surrounds a certain space, and is detachably attached to the air intake. Is provided.
[0016]
That is, the first configuration example of the present pillow 1 is, as shown in FIGS. 1 to 3, a pillow 1 in which a cushion layer 3 is laminated on an upper surface and a lower surface of a core material 2 and the periphery is covered with a side cloth 4. The core member 2 is a self-expanding foam envelope, an air intake port 7 is provided in a part of the foam envelope body, and a detachable plug 8 is provided in the air intake port 7. 3 is a low resilience polyurethane foam or a soft polyurethane foam.
[0017]
In the case of the present embodiment, the core material 2 uses a foam enclosure of Japanese Patent No. 2987036 proposed by the present applicant. The front and back two airtight sheet materials 5a and 5b are used to form an open-cell foam. The air-tight sheet material 5a, 5b and the contact surface of the foam material 6 are adhered over the entire area while enclosing the material 6 so as to be sandwiched therebetween, and an air intake port 7 is formed at a predetermined position.
[0018]
Hereinafter, an example of a method of manufacturing the core material 2 will be described with reference to FIG. 4 in order to facilitate understanding of the structure. The adhesive is applied to the entire area of one side of the airtight sheet materials 5a and 5b sent out from the rolls 11 and 12. The thermosetting adhesive is applied by the application roller 13, and the foam material 6 narrower than the adhesive application surface is continuously supplied at predetermined intervals downstream of the thermosetting adhesive, and the foam material 6 is sandwiched by the lamination roller 14. To produce a laminated product. When the continuously formed laminate is cut at predetermined intervals, the foam material 6 is wrapped by the upper and lower airtight sheet materials 5a and 5b, and the foam material 6 and the airtight sheet material 5a are cut. , 5b are adhered over the entire area, and the airtight sheet materials 5a, 5b are adhered to each other at the outer portion of the foam material 6 to obtain a foam enclosure in which the inside is hermetically sealed.
[0019]
Next, a part of the peripheral adhesive portion of the airtight sheet material 5a, 5b is partially cut off, and if necessary, an air intake port 7 is formed by using a pipe or the like. The open-cell foam material 6 absorbs air, self-expands by elastic force, and changes into a three-dimensional shape. The plug 8 is made detachable from the air intake 7. In the present embodiment, the plug 8 is connected to a pipe or the like of the air intake 7 to prevent loss.
[0020]
Here, in the case of the present embodiment, the open-cell foam material 6 is made of a soft material having characteristics of a tensile strength of 0.6 to ² kg / cm ² , an elongation of 150 to 200%, and a tear strength of 0.27 to 0.8 kg. Polyurethane foam is used, and PVC is used as the airtight sheet materials 5a and 5b, and the core material 2 is formed in a self-expanded state with a slightly depressed center portion.
[0021]
The cushion layer 3 is made of a low resilience polyurethane foam or a soft polyurethane foam. In the case of the present embodiment, the rebound resilience measured by a method based on the method A of JIS K 6400 (1997) is 1 to 1. It is a 20% low resilience polyurethane foam and a highly permeable polyurethane foam having an air permeability of 1 to 4.7 dm ³ / s measured by a method based on the method B of JIS K 6400 (1997).
[0022]
By the way, as such a highly breathable low resilience polyurethane foam, for example, of the polyol component and the polyisocyanate compound blended and formulated as a resin component of a general low resilience polyurethane foam, the polyol component, the high molecular weight polyol A mixed polyol to which a low molecular weight polyhydric alcohol is added is formed, and the mixed polyol component is allowed to react with a polyisocyanate compound to be molded.
[0023]
In place of the low resilience polyurethane foam, a soft polyurethane foam having a hardness of 75 N or less may be used. By using such a low resilience polyurethane foam or a soft polyurethane foam, the feel can be improved. At the same time, the load is dispersed so that a feeling of pressure does not occur on the head and neck muscles.
[0024]
Then, such a cushion layer 3 is laminated and integrated on the upper and lower surfaces of the core material 2 by bonding or the like, and a bag-shaped side cloth 4 is put on the periphery.
[0025]
In the present embodiment, the side fabric 4 is a fine pile fabric that can obtain a soft touch with a soft touch, and is mounted so as to wrap around the cushion layer 3 as described above.
[0026]
The operation and the like of the pillow 1 described above will be described.
First, a desired amount of air is injected from the air inlet 7, and when the core material 2 expands to a certain extent, the air inlet 7 is closed by the plug 8.
Then, since the height of the pillow 1 depends on the degree of expansion of the core 2, the height adjustment of the pillow 1 is extremely simple.
In addition, the cushioning property of the core material 2 is good because the elasticity of the internal foam material 6 and the elasticity of the sealed air are mutually balanced.
[0027]
In addition, since the cushion layer uses a low resilience polyurethane foam or a soft polyurethane foam, the feel is good, and the load is evenly distributed, so that there is no feeling of pressure on the head or neck.
In addition, since the cushion layer 3 of this embodiment is made of a material having air permeability, it can be used comfortably without diffusion of moisture and heat.
[0028]
Next, a second configuration example of the main pillow 1 will be described with reference to FIG.
The pillow 1 uses, as the core material 2, an air sac of Japanese Patent No. 3020417 proposed by the present applicant, and joins and seals the peripheries of the front and back two airtight sheet materials 5 a and 5 b. The inside is airtight, and a pipe serving as an air intake port 7 is attached to a predetermined location, and a plug 8 is attached to the pipe.
The upper and lower cushion layers 3 are made of a low-resilience polyurethane foam or a soft polyurethane foam, as in the above-described example. In this embodiment, the method conforms to the method A of JIS K 6400 (1997). A low rebound polyurethane foam having a rebound resilience of 1 to 20% as measured by the method or a soft polyurethane foam having a hardness of 75 N or less.
In this example, a highly permeable polyurethane foam having an air permeability of 1 to 4.7 dm ³ / s measured by a method based on the method B of JIS K 6400 (1997) is used.
[0029]
In such a pillow 1, if the air is taken in and out from the air intake port 7 and the core material 2 reaches a predetermined degree of expansion, it is closed with the plug 8 so that the height of the pillow 1 can be easily adjusted to a desired height. Can be adjusted.
The head is comfortably supported by the balance between the elastic force of the sealed air of the core material 2 and the elastic force of the cushion layer 3 with the low resilience polyurethane foam or soft polyurethane foam. Further, in the case of the embodiment, since the polyurethane foam of the cushion layer 3 is made of a highly air-permeable material, moisture is diffused, heat is not stored, and the cushion layer 3 is comfortable.
[0030]
Note that the present invention is not limited to the above embodiments. Those having substantially the same configuration as those described in the claims of the present invention and exhibiting the same functions and effects belong to the technical scope of the present invention.
For example, the shape of the pillow 1 is arbitrary.
[0031]
【The invention's effect】
As described above, the pillow according to the present invention has a cushion layer laminated on the upper surface and the lower surface of a core material, and as a core material, an air-tight sheet material is adhered to the periphery of the open-cell foam material to hermetically seal and surround the pillow. Since the air inlet is provided in the part and the plug is made detachable, the height of the pillow can be adjusted by a simple procedure.
In addition, the cushion layer is made of low-resilience polyurethane foam or soft polyurethane foam, so the cushioning is good due to the balance between the elastic force of the core material and the elastic force of the cushion layer, and the load is evenly distributed to compress the head and neck. Feeling can be eliminated.
[0032]
Also, when the core member is made of an air sac, the height of the pillow can be easily adjusted, and the cushioning property is good due to the balance between the elasticity of the sealed air and the elastic force of the cushioning material.
Also in this case, if the polyurethane foam of the cushion layer is made of a highly breathable material, moisture is diffused, and at the same time, a refreshing feeling can be obtained without retaining heat in the pillow.
[Brief description of the drawings]
FIG. 1 is a perspective view of a first configuration example of a pillow according to the present invention. FIG. 2 is an exploded perspective view showing an internal structure of the pillow. FIG. 3 is a cross-sectional view of the pillow. FIG. FIG. 5 is an explanatory view of an example. FIG. 5 is an explanatory view of a second configuration example of a pillow.
DESCRIPTION OF SYMBOLS 1 ... Pillow, 2 ... Core material, 3 ... Cushion layer, 5a, 5b ... Airtight sheet material, 6 ... Foam material, 7 ... Air intake, 8 ... Plug body.

Claims (3)

A pillow in which a cushion layer is laminated on an upper surface and a lower surface of a core material. A pillow, wherein the plug is made detachable and the cushion layer is made of a low resilience polyurethane foam or a soft polyurethane foam. A pillow in which a cushion layer is laminated on an upper surface and a lower surface of a core material. A pillow, wherein the cushion is a flexible foam or a soft polyurethane foam. The pillow according to claim 1 or 2, wherein the low-resilience polyurethane foam or the soft polyurethane foam of the cushion layer is a highly breathable material.

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