JP2006167324A - Padding - Google Patents

Abstract

An object of the present invention is to provide a lightweight pad that is excellent in air permeability and body pressure dispersibility and is lightweight.
In a laying pad 10 made of a plate-like elastic foam 10a, a plurality of substantially parallel inter-cut portions 13 are cut by a plurality of substantially parallel cuts 11 penetrating the upper and lower surfaces of the plate-like elastic foam 10a. It is formed in a state of being connected to each other in the vicinity of both ends of the intermediate portion 13, and the plurality of incised portions 13 are alternately twisted to the opposite side of the plate-like elastic foam 10a to be raised on the surface of the plate-like elastic foam 10a. I let you. The adjacent notch portions 13 are locked in a state where any one of the end portions approaching each other by twisting rides on the other. The portions 17 raised by the twist are formed at a plurality of locations in the plate-like elastic foam.
[Selection] Figure 1

Description

  The present invention relates to a laying pad laid on a mattress, a futon or the like.

  Conventionally, a bedding rug in which a rod made by coating a non-woven fabric on a very thick multifilament bulky thread is attached to a cloth material at regular intervals, and this is covered with a side cloth (garbage) Further, there is a rug made of a ventilation material having a hollow rod shape and an undulating shape.

However, in the laying pad laid on the mattress, the futon, etc., it is required that the body pressure dispersibility is good in addition to the air permeability, and the conventional bedding rugs are not sufficient for them. In addition, the pad to be laid on the mattress or the futon is required to be lightweight.
JP-A-9-215557 Utility Model Registration No. 3020685

  This invention is made | formed in view of the said point, Comprising: It aims at provision of the pad which is excellent in air permeability and body pressure dispersibility, and is lightweight.

  According to the first aspect of the present invention, in the laying pad made of a plate-like elastic foam, a plurality of substantially parallel cut portions are formed by a plurality of substantially parallel cuts penetrating the upper and lower surfaces of the plate-like elastic foam. Are provided in a state of being connected to each other in the vicinity of both ends of the plate, and for the plurality of cut-in portions, the adjacent cut-out portions are twisted to the opposite side of the plate-like elastic foam to be raised on the surface of the plate-like elastic foam It was made to be characterized.

  According to a second aspect of the present invention, in the first aspect of the present invention, the twisted state is maintained by locking the adjacent notch portions in a state where any one of the end portions approaching each other due to twisting rides on the other. It is characterized by being.

  A third aspect of the present invention is characterized in that, in the first or second aspect, the raised portions due to the twist are formed at a plurality of locations in the plate-like elastic foam.

  According to the laying pad of the first aspect of the present invention, a plurality of substantially parallel cut portions are connected to each other in the vicinity of both ends of the cut portion by a plurality of substantially parallel cuts penetrating the upper and lower surfaces of the plate-like elastic foam. In the plurality of inter-cut portions, the adjacent inter-cut portions are twisted to the opposite sides of the plate-like elastic foam and raised on the surface of the plate-like elastic foam, so that the presence of the raised portions The body pressure dispersibility can be improved by the above, and an air permeability increasing effect can be obtained by a plurality of notches penetrating the upper and lower surfaces of the plate-like elastic foam, and since it is made of an elastic foam, excellent light weight is obtained. It is done.

  According to the laying pad of the invention of claim 2, adjacent portions between the cuts are locked in a state in which either one of the end portions approaching each other by twisting rides on the other, so that the twisted state is maintained. It is easy to be twisted and it is difficult to eliminate twist during use.

  According to the laying pad of the invention of claim 3, since the portions raised by twisting are formed at a plurality of locations in the plate-like elastic foam, the body pressure dispersibility becomes better.

  Hereinafter, embodiments of the present invention will be described in detail. 1 is a schematic perspective view of a spread pad according to an embodiment of the present invention, FIG. 2 is a schematic plan view of a section raised by twisting in the spread pad of FIG. 1, and FIG. 3 is a cross-sectional view taken along line 3-3 of FIG. FIG. 4 is a schematic perspective view in which a raised portion due to twisting is partially cut away.

  The laying pad 10 shown in FIG. 1 is composed of a plate-like elastic foam 10a. The elastic foam is made of an appropriate material, and examples thereof include an olefin foam and a polyurethane foam. In the case of polyurethane foam, a mixed reaction liquid is filled and injected into a mold having a predetermined shape, and after mold clamping, a foam foam which is foam-cured and cured in the mold or a two-component reaction mixture liquid at room temperature and atmospheric pressure is belted. It may be any slab foam that is discharged onto a conveyor, foamed and cured, and then cut into a predetermined shape. In addition, the commercially available thing manufactured by the well-known technique can be used for the polyurethane slab foam. The thickness of the plate-like elastic foam 10a is 3 to 50 mm, particularly preferably 20 to 40 mm. If it is less than 3 mm, it is too thin to be suitable as a spread pad. Moreover, when it exceeds 50 mm, when the thickness is too large and it is laid on a mattress or a futon, the bedding surface becomes too high, and the processing of the laying pad 10 becomes difficult.

  As shown in FIGS. 2 and 3, the plate-like elastic foam 10a has a plurality of substantially parallel cuts 11 penetrating the upper and lower surfaces, that is, a portion sandwiched between adjacent cuts 11, that is, between cuts. A plurality of portions 13 are provided in a state of being connected in parallel with each other in the vicinity of both ends. Reference numeral 19 denotes a connecting portion in the vicinity of both ends of the notch portion 13. The cut portion 11 is not formed in the connecting portion 19. In the illustrated example, the connecting portion 19 is formed in a diamond-shaped frame shape, and a plurality of portions surrounded by the diamond-shaped frame-shaped connecting portion 19 are provided in the plate-like elastic foam 10a at predetermined intervals.

  The interval between the notches 11, that is, the width d of the portion 13 between the notches is appropriately determined, and an example is about 5 to 30 mm. As shown in FIGS. 3 and 4, the inter-cut portions 13 are formed by twisting adjacent inter-cut portions 13 a and 13 b toward the opposite side of the plate-like elastic foam 10 a, that is, the plural cut portions 13. Are alternately twisted to the upper side and the lower side of the plate-like elastic foam 10a, and are raised on the upper surface and the lower surface of the plate-like elastic foam 10a. In the illustrated example, of the adjacent notch portions 13a and 13b, one of the notch portions 13a is twisted toward the upper surface side of the plate-like elastic foam 10a and is raised on the upper surface side, and the other notch portion 13b is plate-like. The elastic foam 10a is twisted toward the lower surface side and raised on the lower surface side. The portion 17 raised by the twist is formed for each section surrounded by the connecting portion 19 having a rhombus frame shape, and thereby the raised portions 17 are provided at a plurality of locations of the plate-like elastic foam 10a. . In addition, although the length of the part 13 between the cuts in each said division is taken as appropriate, about 10-200 mm is mentioned as an example. The notches 11 are formed by an appropriate method such as pressing or a roller with a blade.

  In the portion 17 raised by the twist, every other portion 13 between the cuts is twisted to one side of the plate-like elastic foam 10a, and the portions between the cuts are twisted to the opposite side. In the notch portion 13, a gap 18 is formed between the adjacent portions, and excellent air permeability is obtained. Further, the presence of the portion 17 raised by the twisting improves the body pressure dispersibility when a human body lies on the laying pad 10.

  Further, as shown in FIGS. 3 and 4, the adjacent notch portions 13a and 13b are engaged in a state where one of the end portions 16a and 16b approaching each other by twisting rides on the other 16b at the center portion. The torsion of the notch portion 13 is not easily eliminated. Therefore, even if the laying pad 10 is compressed by use or the like, the twist of the incision portion 13 is difficult to be eliminated, and excellent air permeability and body pressure dispersibility can be maintained. The portions to be locked may be appropriately connected by an adhesive or the like. In the illustrated example, the adjacent notch portions (13a, 13a) in which one of the end portions (16a, 16b) close to each other rides on the other are adjacent to each other in the plural notch portions 13. The two notch portions (13a, 13b) are made into one set, and the plurality of notch portions 13 are divided into a plurality of sets, and the end portions 16a, 16b approaching each other are locked in each set. In addition, the end portions are not locked with respect to the portions between the cuts between adjacent sets. Further, the lay pad 10 is used by being inserted into a bag body made of a front cloth. However, the presence of the notch 11 makes it easy to bend, compress and deform, so that the insertion work into the bag body is performed. It becomes easy.

A polyurethane foam (product number: ECZ, manufactured by Inoac Corporation) having a density of 16 kg / m ³ , a hardness of 78.5 N, and a tensile strength of 69 KPa (all according to JIS K6400) is formed into a plate shape of 50 × 1000 × 2000 mm. The plate-like polyurethane foam is provided with a plurality of sections surrounded by the connecting portion 19 having a rhombus frame shape with a side length of 110 mm, with a center interval of 140 mm, and the notches 11 are provided in parallel at intervals of 5 mm in each of the sections. 30 portions 13 between the cuts were formed. The length of the incision portion 13 in each section is 10 to 130 mm. Twist the incision portions 13 formed by the incisions alternately to the opposite side of the plate-like polyurethane foam, and for adjacent incision portions, either one of the end portions that are close to each other by twisting to the other It was locked while riding. Thereby, the part which protruded by twist was formed for every division on both sides of the plate-like polyurethane foam, and the spread pad of the Example was obtained.

  A body pressure dispersion test was conducted by placing the pad of the above example in a cloth bag body on a hood. The body pressure dispersion test was performed by examining the pressure distribution when the human body actually fell asleep using a “visual mat” (made by Nitta Corporation) device. In addition, a sheet pad of the same material and the same dimensions as those of the example in which no cut was formed was used as a laying pad of a comparative example. The laying pad of the comparative example was stored in a bag and laid on a bonnel, and a body pressure dispersion test was performed in the same manner as in the example.

  As shown in FIG. 5, the test results show that there are many red parts showing high pressure in the comparative example, whereas there are no red parts showing high pressure in the examples, and the entire range is yellow or less, It can be seen that the body pressure is well dispersed.

It is a schematic perspective view of the spread pad concerning one embodiment of the present invention. FIG. 2 is a schematic plan view of a section raised by twisting in the laying pad of FIG. 1. FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 2. It is a schematic perspective view which partially cuts and shows the protruding part by twist. It is a figure which shows the result of a body pressure dispersion | distribution test.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Laying pad 10a Plate-like elastic foam 11 Incision 13 Incision part 13a, 13b Adjacent incision part 16a, 16b End part which mutually approached by twist 17 Raised part 19 Connection part

Claims (3)

In a spread pad made of a plate-like elastic foam (10a),
A plurality of substantially parallel cut portions (13) are connected to each other in the vicinity of both ends of the cut portion (13) by a plurality of substantially parallel cuts (11) penetrating the upper and lower surfaces of the plate-like elastic foam (10a). The plate-like elastic foam is formed by twisting adjacent cut-in portions (13a, 13b) to the opposite side of the plate-like elastic foam (10a). A laid pad characterized by being raised on the surface of the body (10a).   The adjacent incisions (13a, 13b) are twisted by locking one of the end portions (16a, 16b) close to each other by twisting (16a) riding on the other (16b). The laying pad according to claim 1, wherein the state is maintained. The laying pad according to claim 1 or 2, wherein the portions (17) raised by the twisting are formed at a plurality of locations of the plate-like elastic foam (10a).

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