JP3174858U - pillow - Google Patents

Abstract

The present invention provides a pillow that can cool a cooling gel sheet efficiently and exhibit its heat absorption effect over a long period of time to obtain a comfortable sleeping environment.
The pillow 10 includes a cushion 20 and a cooling gel sheet 30 attached to the upper surface of the cushion 20. The cooling gel sheet 30 has a plurality of uneven portions 34 formed on the surface thereof. Consists of a highly repellent foamed latex. Therefore, turning over becomes easy, the head moves appropriately on the cooling gel sheet, and the contact portion of the head on the cooling gel sheet is cooled, so that the heat absorption effect of the cooling gel sheet is maintained for a long time.
[Selection] Figure 1

Description

  The present invention relates to a pillow to which a cooling gel sheet is attached.

  In general, it is considered that a good sleep can be achieved by cooling the head at bedtime, which is good for health. Therefore, many pillows that can cool the head have been developed.

  For example, the following Patent Document 1 describes a pillow in which a cold insulator formed by encapsulating a crosslinked polymer that is not expanded in a medium in an encapsulating film is incorporated in a recess provided in the pillow body. ing. Further, it is described that the main body is preferably made of a low resilience polyurethane foam.

  Patent Document 2 listed below discloses a thermally conductive gel layer, a metal network layer that is provided under the thermally conductive gel layer and can diffuse heat transmitted from the thermally conductive gel layer, and the metal. Heat dissipation acceleration by laminating a soft synthetic resin network structure layer provided below the network structure layer and capable of releasing heat transferred from the metal network structure layer, and a pillow base section provided below this layer Pillows with mats for use are described. Further, it is described that a low-resilience foam made of a low-resilience polyurethane foam or the like is applied as the pillow base portion.

JP 2006-51335 A JP 2004-350990 A

  However, in the pillows described in Patent Documents 1 and 2, since the main body is made of a low-resilience polyurethane foam or the like, the head sinks deeply, and the shape returns to the original even when the head is separated. It tends to be difficult, and the sunken head becomes difficult to move and it is difficult to turn over. As a result, since the head is in contact with the cold insulator or the heat conductive gel layer for a long time, it becomes difficult to release the heat absorbed by the cold insulator or the heat conductive gel layer. There was a demerit that the layer warmed up quickly and the head was not easily cooled.

  Accordingly, an object of the present invention is to provide a pillow that can effectively exhibit a heat absorption effect and obtain a comfortable sleeping environment.

  In order to achieve the above object, the present invention comprises a cushion and a cooling gel sheet attached to the upper surface of the cushion, and the cooling gel sheet has a plurality of irregularities formed on the surface thereof, The present invention provides a pillow comprising a highly repellent foamed latex.

  According to the present invention, when the head is placed on the pillow, the head is supported by the cushion, and the heat of the head is absorbed by the cooling gel sheet, so that it is possible to sleep comfortably. Also, because the cushion is made of foamed latex with high resilience, when the head is placed, it sinks and supports the head softly, but when the head begins to move by turning over, the part where the head is separated instantly Restore and promote rollover. By turning over the head, the head moves appropriately on the cooling gel sheet, and the portion heated by the head contact on the cooling gel sheet is cooled again when the head leaves, so the heat absorption effect of the cooling gel sheet is prolonged. It can be demonstrated over time, and a comfortable sleep environment can be obtained.

  In the pillow of the present invention, the cushion is preferably formed with a plurality of ventilation holes penetrating in the thickness direction, and upper openings of the plurality of ventilation holes are arranged on the lower surface of the cooling gel sheet. . According to this, since the ventilation hole is formed in the cushion, the softness of the cushion increases, the head easily fits the cooling gel sheet, and the heat of the cooling gel sheet is easily dissipated outside through the ventilation hole. can do. Further, since the plurality of vent holes are formed in the cushion, the weight of the cushion can be reduced. Furthermore, by providing a vent hole in the cushion, a plurality of pins for molding the vent hole are arranged in the mold at the time of cushion manufacture, and the foam latex material can be uniformly filled in the mold. A cushion having a uniform elastic force can be obtained, and turning over can be performed more easily.

  In the pillow of this invention, it is preferable that each ventilation hole of the said cushion is formed with the internal diameter of 3-15 mm. According to this, the heat | fever of a cooling gel sheet can be dissipated efficiently.

  In the pillow of the present invention, it is preferable that an interval between adjacent vent holes of the cushion is 5 to 30 mm. According to this, weight reduction of a cushion and improvement in flexibility can be achieved with a good balance.

  In the pillow of the present invention, the cooling gel sheet is fixed to the upper surface of the cushion, and a film sheet is put on the outer side of the cooling gel sheet, and is fixed to the cooling gel sheet and the cushion. preferable. According to this, the cooling gel sheet is hardly peeled off from the cushion, and can be firmly attached.

  In the pillow of this invention, it is preferable that the said uneven | corrugated | grooved part is comprised by the some convex part formed in the surface of the said cooling gel sheet at predetermined intervals. According to this, since a clearance gap is formed between the surface of a cooling gel sheet and the head mounted on the upper surface by a convex part, the heat | fever of a cooling gel sheet can be thermally radiated more efficiently.

  In the pillow of the present invention, each convex portion of the concave and convex portions may have a hemispherical shape, or may have a columnar shape whose end face is circular, elliptical, or polygonal. preferable. According to this, a convex part can be made to contact a head firmly.

  In the pillow of this invention, it is preferable that each convex part of the said uneven | corrugated | grooved part is protrudingly provided by the height of 3-10 mm from the surface of the said cooling gel sheet. According to this, it becomes easy to form the clearance gap between the surface of a cooling gel sheet, and a head.

  In the pillow of this invention, it is preferable that the space | interval of the convex parts which the said uneven | corrugated | grooved part adjoins shall be 5-25 mm. According to this, it becomes easy to form a gap between the surface of the cooling gel sheet and the head.

  According to the present invention, the heat of the head is absorbed by the cooling gel sheet, so that it can sleep comfortably, and the cushion made of the highly repellent foamed latex can facilitate turning over. By turning over, the head moves appropriately on the cooling gel sheet, and the part that the head on the cooling gel sheet was in contact with before moving is cooled again, so that the heat absorption effect of the cooling gel sheet can be demonstrated for a long time and comfortable. Can get a good sleep environment.

It is a disassembled perspective view which shows one Embodiment of the pillow which concerns on this invention. It is a perspective view of the pillow. It is sectional drawing of the same pillow. The use state of the pillow is shown, (a) is an explanatory view in a state where the head is located in the center of the pillow, (b) is an explanatory view in a state where the head is turned over and the head moves on the pillow. . It is a perspective view which shows other embodiment of the pillow which concerns on this invention.

  Hereinafter, with reference to FIGS. 1-4, one Embodiment of the pillow which concerns on this invention is described.

  As shown in FIG. 1, the pillow 10 in this embodiment includes a cushion 20, a cooling gel sheet 30 attached to the upper surface of the cushion 20, and a film sheet 40 placed on the cooling gel sheet 30. .

  The cushion 20 in this embodiment is made of a highly repellent foamed latex and has a substantially rectangular shape formed with a predetermined thickness. As shown in FIGS. 1 and 3, the cushion 20 is formed with a plurality of vent holes 22 penetrating the front and back surfaces along the thickness direction. In the case of this embodiment, a plurality of vent holes 22 are arranged in the form of dots at substantially equal intervals along the longitudinal direction of the cushion 20 and the width direction perpendicular thereto. The arrangement pattern of the air holes 22 is not limited to the above-described mode, and various patterns can be adopted depending on the purpose.

  The inner diameter of the vent hole 22 is preferably 3 to 15 mm, and more preferably 5 to 8 mm. Furthermore, it is preferable that the space | interval of adjacent vent holes 22 and 22 is 5-30 mm, and it is preferable that it is 10-22 mm. Furthermore, the porosity of the entire ventilation hole 22 with respect to the entire cushion 20 is preferably 10 to 25%, and more preferably 12 to 15%.

  As the foamed latex forming the cushion 20, for example, natural rubber latex such as field latex, ammonia-treated latex, deproteinized natural rubber (DPNR) latex, etc. can be adopted, and hydrolyzed gallotannin can be used. Alternatively, those containing tannic acid such as hydrolyzed ellagitannin and condensed tannin may be employed. By containing tannic acid, the allergen that causes latex allergy is reduced by tannic acid, and the rubber odor of latex can be reduced by tannic acid. Such a method for producing a foamed latex is described in detail in, for example, JP-A-2008-56858.

  Note that “high repulsion” in the cushion 20 means that even when the pressure is applied and elastically deforms, the shape immediately returns to the original shape, that is, the elastic restoring force is high. Low resilience (soft, but it takes time to return to its original shape when elastically deformed).

  High resilience can be evaluated by the rebound resilience of the cushion 20, and this rebound resilience can be measured, for example, according to the JIS K 6400 A method (1997). As an example, the results of measuring the rebound resilience (%) of the test piece 1 made of foamed latex used for the cushion 20 and the rebound resilience (%) of the test piece 2 made of soft urethane foam as a comparison are shown below. Show.

  Test piece 1 was prepared by stacking two foamed latexes cut to a length of 100 mm, a width of 100 mm, and a thickness of 74 mm. Test piece 2 was made by stacking two flexible urethane foams cut to a length of 100 mm, a width of 100 mm, and a thickness of 68 mm. About these test pieces 1 and 2, the resilience elastic modulus (%) was measured based on said JISK6400A method (1997). The results are shown in Table 1 below.

As shown in Table 1 above, it can be seen that the test piece 1 made of foamed latex has a significantly higher impact resilience (%) than the test piece 2 made of flexible urethane foam.

  In addition, it is preferable that the cushion 20 made of foamed latex used in the present invention has a rebound resilience measured by a test method based on the above JIS K 6400 of 10% or more.

  The cooling gel sheet 30 attached to the upper surface of the cushion 20 having the above-described structure is composed of a substantially rectangular sheet 32 adapted to the shape of the cushion 20 and a plurality of uneven portions 34 provided on the surface of the sheet 32. ing.

  The uneven portion 34 in the present embodiment has a plurality of convex portions 34a protruding from the surface of the sheet 32, and the convex portions 34a are substantially along the longitudinal direction of the sheet 32 and the width direction perpendicular thereto. They are evenly spaced. In addition, although the convex part 34a of this embodiment has a shape that protrudes in a hemispherical shape, it may be a columnar convex part whose end face protrudes in a circle, an ellipse, or a polygon, and is not particularly limited. Moreover, as the uneven | corrugated | grooved part 34, you may have the recessed part formed in the surface of the sheet | seat 32 by predetermined depth, Furthermore, the convex part protruded from the surface of the sheet | seat 32, and the surface of the sheet | seat 32 were formed. You may combine with a recessed part.

  As shown in the partial enlarged view of FIG. 3, the height D (height not including the film sheet 40) of the convex portion 34a of the concave and convex portion 34 from the surface of the sheet 32 is preferably 3 to 10 mm. It is more preferable that it is 4-6 mm. Moreover, it is preferable that the space | interval L of the adjacent convex parts 34a is 5-25 mm, and it is more preferable that it is 10-15 mm.

  The cooling gel sheet 30 is not particularly limited as long as it absorbs the heat of the head and allows the user to obtain a cool feeling. For example, polyurethane, silicone, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylic acid, Gel materials made of polyacrylate, polyisopropyl chloride acrylamide, maleic anhydride copolymer, dextrin, pullulan, gelatin, methylcellulose, ethylcellulose, carboxymethylcellulose, etc., and microcapsules encapsulating phase change substances such as paraffin Alternatively, a mixed gel material obtained by mixing a heat conductive filler can be used.

  In addition, as a mixed gel material mixed with microcapsules enclosing a phase change material such as paraffin, for example, those disclosed in JP-A-2007-145915 can be used, and a heat conductive filler is mixed. As the mixed gel material, for example, those disclosed in JP-A No. 2004-350990 can be used.

  The cooling gel sheet 30 is attached to the upper surface of the cushion 20 by adhering means such as adhesion, welding, and double-sided tape. At this time, as shown in FIG. 3, the upper opening of the vent hole 22 of the cushion 20 is arranged on the lower surface of the cooling gel sheet 30.

  Further, a film sheet 40 larger than the cooling gel sheet 30 is placed on the outer side of the cooling gel sheet 30, and the film sheet 40 is adhered, welded, and double-sided tape to the cooling gel sheet 30 and the cushion 20 in the same manner as described above. It is fixed by such means. The film sheet 40 in this embodiment has a generally rectangular shape that covers the upper half of the cushion 20, but is not particularly limited to this shape. As shown in FIG. 3, the film sheet 40 is adhered to the cushion 20 so as to be in close contact with the upper surface of the cooling gel sheet 30 and the upper outer peripheral surface of the cushion 20.

  As the film sheet 40, polyurethane, polyethylene, polyvinyl chloride, polypropylene, polyester, polycarbonate, polystyrene and the like can be preferably used. Among them, the film sheet 40 is highly stretchable and can adhere to the upper surface of the uneven portion 34 of the cooling gel sheet 30. Is preferable.

  In addition, it is preferable to cover the cover member (what is called a pillow cover) which is not shown in figure on the outer periphery of the pillow 10 which concerns on this invention which comprised the said structure.

  Next, the usage method and the effect of the pillow having the above structure will be described with reference to FIG. In FIG. 4, the film sheet 40 is omitted for convenience.

  As described above, the pillow 10 has the cooling gel sheet 30 attached to the upper surface of the cushion 20 via an adhesive or the like, and the film sheet 40 is further covered on the outer side thereof, so that the cooling gel sheet 30 and the cushion 20 are covered. A film sheet 40 is adhered and configured.

  Thus, in this embodiment, since the cooling gel sheet 30 is covered with the film sheet 40 that is disposed on the outer side and attached to the cushion 20, the cooling gel sheet 30 is not easily peeled off from the cushion 20. Can be installed securely.

  In particular, in the present embodiment, as shown in FIG. 3, the film sheet 40 is in close contact with the upper surface of the cooling gel sheet 30 and the outer peripheral surface of the cushion 20. A gap is formed between them, and it is possible to easily release the heat of the head and to dissipate the heat absorbed by the cooling gel sheet 30.

  At this time, when the height D from the surface of the sheet 32 of each convex portion 34a of the concave and convex portion 34 is 3 to 10 mm, a gap between the surface of the cooling gel sheet 30 and the head is formed. Easy to form. Moreover, the effect that it becomes easy to form the clearance gap between the surface and the head of the cooling gel sheet 30 also when the space | interval L of the convex part 34a which the uneven | corrugated | grooved part 34 adjoins is 5-25 mm is acquired. It is done.

  When the head is placed on the upper surface of the pillow 10, as shown in FIG. 4A, the head indirectly contacts the cooling gel sheet 30 via the pillow cover or the film sheet 40 and is supported by the cushion 20. Is done. And since the heat | fever of a head is absorbed by the cooling gel sheet 30, it can sleep comfortably.

  At this time, in this embodiment, each convex part 34a of the concavo-convex part 34 of the cooling gel sheet 30 has a hemispherical shape, so that a gap is formed between the surface of the cooling gel sheet 30 and the head. However, each convex part 34a can be made to contact a head firmly.

  In addition, since the cushion 20 is made of a highly repellent foamed latex, the head is depressed to some extent, but is supported so as not to sink further, and when the head begins to move by turning over, the head is separated. Since the cushion 20 quickly returns to the original shape at the raised portion, the rollover is promoted.

  As the head moves over the cooling gel sheet 30 by turning over in this way, the portion of the cooling gel sheet 30 that is warmed by contact with the head is cooled again by leaving the head, so the heat absorption effect of the cooling gel sheet 30 Can be exhibited for a long time, and a comfortable sleep environment can be obtained.

  Moreover, since it can be set as the comparatively simple structure of mounting the cushion 20 which consists of highly repellent foamed latex under the cooling gel sheet 30, the manufacturing cost of a pillow can be reduced.

  Furthermore, unlike the pillows described in Patent Documents 1 and 2, unlike the cushion made of polyurethane, the cushion 20 in the present invention is formed of foamed latex. A rebound can be maintained, and a pillow that is comfortable and easy to turn over can be obtained.

  In addition, since the cushion 20 is formed with a plurality of ventilation holes 22 penetrating along the thickness direction, the cushion 20 can be increased in softness and easily fitted to the head. In addition, the weight of the cushion 20 can be reduced.

  Further, by providing the air holes 22 in the cushion 20, a plurality of pins for forming the air holes are arranged in the mold at the time of manufacturing the cushion, so that the foamed latex material is uniformly filled in the mold. Can do. As a result, a cushion having a uniform elastic force can be obtained, so that it is possible to turn over more easily.

  At this time, when the inner diameter of the vent hole 22 is 3 to 15 mm, the heat of the head absorbed by the cooling gel sheet 30 can be efficiently dissipated. Moreover, when the space | interval of the adjacent ventilation holes 22 is 5-30 mm, the weight reduction of the cushion 20 and the improvement of a softness | flexibility can be aimed at with sufficient balance.

  Furthermore, as shown in FIG. 3, the upper openings of the plurality of vent holes 22 formed in the cushion 20 are arranged on the lower surface of the cooling gel sheet 30, so that the heat of the cooling gel sheet 30 is transmitted through these vent holes 22. It can be made easy to diverge outside.

  FIG. 5 shows another embodiment of the pillow according to the present invention. Portions that are substantially the same as those of the above embodiment are given the same reference numerals, and descriptions thereof are omitted.

  The pillow 10a in this embodiment is different from the pillow 10 of the above embodiment in which a plurality of convex portions 34b provided on the cooling gel sheet 30 have a columnar shape protruding in a square shape and have a convex portion 34a protruding in a hemispherical shape. ing. In the pillow 10a of this embodiment, since the convex part 34b has comprised square shape, the contact area with respect to a head can be improved, and the heat absorption effect of the cooling gel sheet 30 can be improved more.

10, 10a Pillow 20 Cushion 22 Ventilation hole 30 Cooling gel sheet 32 Sheet 34 Uneven portion 34a, 34b Convex portion 40 Film sheet

Claims (9)

  A cushion and a cooling gel sheet attached to the upper surface of the cushion, wherein the cooling gel sheet has a plurality of irregularities formed on a surface thereof, and the cushion is made of a highly repellent foamed latex. And a pillow.   The pillow according to claim 1, wherein a plurality of ventilation holes penetrating in the thickness direction are formed in the cushion, and upper openings of the plurality of ventilation holes are arranged on a lower surface of the cooling gel sheet.   The pillow according to claim 2, wherein each air hole of the cushion is formed with an inner diameter of 3 to 15 mm.   The pillow according to claim 2 or 3, wherein an interval between adjacent ventilation holes of the cushion is 5 to 30 mm.   The cooling gel sheet is fixed to the upper surface of the cushion, and a film sheet is put on the outer side of the cooling gel sheet, and the cooling gel sheet is fixed to the cooling gel sheet and the cushion. Pillow described in one.   The pillow according to any one of claims 1 to 5, wherein the concavo-convex portion includes a plurality of convex portions formed on the surface of the cooling gel sheet at a predetermined interval.   The pillow according to claim 6, wherein each convex portion of the concavo-convex portion has a hemispherical protruding shape, or an end surface of a circular, oval, or polygonal protruding column.   The pillow according to claim 6 or 7, wherein each convex portion of the concave-convex portion protrudes from the surface of the cooling gel sheet at a height of 3 to 10 mm.   The pillow according to any one of claims 6 to 8, wherein an interval between adjacent convex portions of the uneven portion is 5 to 25 mm.