JP2021087533A - Three-dimensional toilet seat cushion, and manufacturing method and using method thereof - Google Patents

Abstract

To provide: a toilet seat cushion the whole of which is integrally molded of a soft foam resin; and a manufacturing method of such a toilet seat cushion.SOLUTION: A method has steps of: preparing upper and lower molds 61 and 62 having a complementary recess of a toilet seat cushion; heating a tabular soft foam resin material 7 at 100-150°C; placing the soft foam resin material between the upper and lower molds, and molding the same into a shape of the toilet seat cushion; and taking out the toilet seat cushion from the molds and deburring the same.SELECTED DRAWING: Figure 4

Description

The present invention relates to a three-dimensional toilet seat cushion that covers the upper part of the toilet seat of a Western-style toilet bowl, a method for manufacturing the same, and a method for using the cushion.

Conventionally, a cover covering the toilet seat has been used in order to avoid a cold feeling when sitting directly on the toilet seat made of synthetic resin.

In recent years, a pair of crescent-shaped base cloth type covers that are attached to the surface of the toilet seat have become the mainstream. This is often referred to as the "toilet seat". As a method of attaching the toilet seat sheet to the surface of the toilet seat, a method of laminating a self-adhesive resin on the base cloth (example: JP-A-2002-233476) is common. The toilet seat sheet has advantages such as easy washing and installation, but since it is flat, it is unavoidable that the human body and the toilet seat may come into direct contact with each other at the edge of the seat, which is sufficiently satisfactory. It wasn't a thing.

To solve this problem, Applicants have a novel structure of toilet seat sheet that covers the area of contact between the thigh and the toilet seat and has a sufficient size and shape so as not to interfere with the operation of the cleaning nozzle. (Japanese Patent Laid-Open No. 2015-131073) and named it "toilet seat cushion".

JP-A-2002-233476 JP 2015-131073

The products of the above-mentioned Japanese Patent Application Laid-Open No. 2015-131073 have been generally well received, but when trying to expand their sales channels to hospitals and facilities requiring long-term care, new problems arose. That is, when the toilet seat cushion becomes dirty, the portion can be clearly identified, and the stain can be immediately wiped off with a disinfectant wet tissue or the like without the need for washing. This is to maintain a clean and beautiful toilet seat cushion, both visually and hygienically. Since the product of JP-A-2015-131073 has a surface fabric layer such as a pile fabric and a sponge layer below the surface fabric layer, it has not been able to sufficiently meet such a problem.

The present invention responds to this problem, and an object of the present invention is to provide a toilet seat cushion that is integrally molded with a soft foamed resin as a whole. It is also an object of the present invention to provide a method for manufacturing such a toilet seat cushion.

The present invention is a toilet seat cushion having a pair of symmetrical left and right main bodies, and each toilet seat cushion has almost the shape of various toilet seats sold in the past or currently sold by the toilet seat manufacturer and substantially equivalents thereof. It is a toilet seat cushion having a body portion having a three-dimensional shape to the extent that it follows, and has a size and shape that substantially covers the range of contact between the user's thigh and the toilet seat, and the body portion is entirely covered. The toilet seat cushion is integrally molded with a soft foamed resin, and the toilet seat cushion is characterized in that all contours are composed of curved surfaces and substantially no linear portion exists.

The three-dimensional shape is preferably such that, in the attached FIG. 5, each toilet seat cushion has H of 380 mm to 450 mm, W of 170 mm to 210 mm, W1 of 100 mm to 140 mm, and W2 when measured in a flat shape. 110 mm to 140 mm, W3 is 100 mm to 130 mm, where H is the vertical length of the toilet seat cushion, W is the horizontal length of the toilet seat cushion, and W1 is 0 point of the toilet seat. The width direction length of the toilet seat cushion at a point (a) 100 mm forward from the toilet seat, W2 is the width direction length of the toilet seat cushion at a point (b) 200 mm forward from the 0 point of the toilet seat, and W3 is the center line of the toilet seat. It is the length in the width direction of the toilet seat cushion at the point (c) shifted by 40 mm in more parallel, and the 0 point is the rear side where the toilet seat center line and the toilet seat center opening intersect. Note that W1, W2, and W3 are numerical values when the three-dimensional toilet seat cushion is spread out so as to be flat and measured.

Preferably, the soft foamed resin is polyethylene foam or EVA (ethylene vinyl acetate) foam.

Further, preferably, in the finished product, the color of the soft foamed resin is a color having high brightness. This is because it is easy to visually recognize when dirt adheres while using the toilet seat. Specifically, it is about 7 to 10 when expressed in 10 steps (0 (black) to 10 (white)) of brightness used in the Munsell color system. In particular, white (10) or a light cream color is preferable.

More preferably, a non-slip fixing portion can be attached to the back surface of the toilet seat cushion so that the toilet seat cushion can be attached stably without being displaced.

The method for manufacturing a toilet seat cushion of the present invention includes a step of preparing an upper and lower mold having complementary recesses of the toilet seat cushion, a step of heating a plate-shaped soft foamed resin material at 100 to 150 ° C., and the upper and lower molds. It is characterized by having a step of placing the soft foamed resin material between the two, forming the shape of the toilet seat cushion, and a step of taking out the toilet seat cushion from a mold and removing burrs.

Preferably, the soft foamed resin is polyethylene foam or EVA (ethylene vinyl acetate) foam.

Preferably, the mold is provided with a plurality of air vent holes to eliminate the dent that appears at the rising end of the toilet seat cushion.

The present invention is also a method of using the toilet seat cushion, characterized in that 2 to 5 of the toilet seat cushions are stacked in the vertical direction.

The toilet seat cushion of the present invention is three-dimensional and can be easily placed on the toilet seat. Furthermore, since it is integrally molded with a soft foamed resin, it is easy to identify stains and wipe them off immediately. Further, the toilet seat cushion of the present invention has a size and shape that substantially covers the range of contact between the user's thigh and the toilet seat, and can avoid a cold feeling when sitting directly on the toilet seat. .. Furthermore, the height can be adjusted stably by stacking several toilet seat cushions.

Hereinafter, examples of the present invention will be described with reference to the accompanying drawings.

It is a perspective view of the state which the toilet seat cushion which concerns on 1 Example of this invention is attached to a toilet seat. (A) Front view, (b) Left side view, (c) Plan view, (d) Right side view, (e) Bottom view, (f) Rear view of the toilet seat cushion located on the left side in the user's seating posture. Is. 2A is an end view taken along the arrow AA, FIG. 2B is an end view taken along the arrow BB, and FIG. 2C is an end view taken along the line CC. (A), (b) and (c) are cross-sectional views showing the toilet seat cushion manufacturing process of this embodiment. (A) and (b) are cross-sectional views of the rising portion end portion of the toilet seat cushion. (A) is an ideal state without dents, and (b) is an unimproved state with dents. It is a top view of the toilet seat cushion which shows the dimension measurement standard of the toilet seat cushion. The multiple contour lines of the toilet seat indicate the shape of the toilet seat sold by each toilet bowl manufacturer. It is a perspective view for demonstrating the usage of another embodiment of the toilet seat cushion.

As shown in FIG. 1, the toilet seat cushions 1 are symmetrical and paired, and are used by being mounted on the toilet seat 5 at the upper end of the toilet bowl 4. Arrange so as not to interfere with the operation of the cleaning nozzle (not shown).

As shown in FIGS. 2 to 5, the toilet seat cushion 1 includes a deformed crescent-shaped main body 2 and a fixing portion 3 for mounting on the toilet seat. FIG. 2 As can be clearly seen from each figure, the toilet seat cushion 1 is three-dimensional, and is attached over the toilet seat 5 so as to follow the three-dimensional shape. Remarkable rising portions (outer rising portion 22 and inner rising portion 23) are formed on both sides of the main body 2 in the longitudinal direction. This toilet seat cushion has all contours composed of curved surfaces, and there are no straight parts. In conventional products, synthetic resins such as polyethylene, EVA, and sponge are often punched and heat-pressed flatly, so they tend to be linear and flat. Clearly different.

As shown in FIG. 6, the size of the main body 2 is 380 mm to 450 mm for H, 170 mm to 210 mm for W, 100 mm to 140 mm for W1, 110 mm to 140 mm for W2, and W3 when measured in a flat shape. It is 100 mm to 130 mm. Here, H is the vertical length of the toilet seat cushion 1, W is the lateral length of the toilet seat cushion 1, and W1 is the width of the toilet seat cushion 1 at a point (a) 100 mm forward from the 0 point of the toilet seat. The directional length, W2 is the width direction length of the toilet seat cushion 1 at a point (b) 200 mm forward from the 0 point of the toilet seat, and W3 is the toilet seat at a point (c) shifted 40 mm parallel to the center line of the toilet seat. It is the length in the width direction of the cushion 1, and the 0 point is the rear side where the toilet seat center line and the toilet seat center opening intersect. Note that W1, W2, and W3 are numerical values when the three-dimensional toilet seat cushion is spread out so as to be flat and measured.

This size is sufficient in size and shape to cover at least the range of contact between the thigh and the toilet seat 5 in various toilet seats sold by the toilet seat manufacturer in the past or sold at the time of filing the application of the present application and their equivalents. .. For the grounds, refer to the specifications [0009] to [0014] of Japanese Patent Application Laid-Open No. 2015-131073 of the present applicant.

On the back surface of the main body 2, two belts, which are fixing portions 3 for anti-slip as shown in FIGS. 2 (e) and 3 (a), are provided. The fixing portion 3 has an adhesive layer, a base cloth layer, an adsorbent layer, and a paper pattern layer in this order from the toilet seat cushion 1 side to the outside.

As shown in FIG. 3C, the central portion 31 of the fixing portion 3 is a non-fixing portion that is not adhered to the toilet seat cushion main body 2 by the adhesive layer. This is to cope with the slight difference in the shape of the toilet seat manufactured by a plurality of toilet seat manufacturers. That is, if the central portion 31 is in close contact with the toilet seat cushion body 2 by the adhesive layer, it is suitable for the product of one manufacturer, but the product of another manufacturer has poor adhesion, and it is sufficient that the suction surface cannot be secured. This is to avoid a situation in which a proper fixing force cannot be obtained.

This three-dimensional toilet seat cushion 1 is manufactured as follows.

First, the mold 6 (61, 62) as shown in FIG. 4 is manufactured. The mold used at this time is manufactured by scanning the toilet seats of a plurality of toilet seat manufacturers with an industrial X-ray CT, converting them into 3D data, and then synthesizing them. The mold material is preferably aluminum or steel.

Next, the material 7 of the toilet seat cushion cut to a predetermined size is heated. Then, the heated material is sandwiched between the upper and lower molds 61 and 62, molded and naturally cooled (FIG. 4 (b)). As the material 7 of the toilet seat cushion, polyethylene foam, EVA (ethylene vinyl acetate) foam, butadiene copolymer latex (MBR, NBR, SBR), PVC (polyvinyl chloride) can be used. Of these, polyethylene foam and EVA (ethylene vinyl acetate) foam are preferable.

At this time, if the material 7 of the toilet seat cushion is simply sandwiched between the upper and lower molds 61 and 62, the rising portions 22 and 23 on the side of the toilet seat cushion cannot have a uniform thickness (FIG. 5 (a)), and the recess 24 cannot be obtained. (Fig. 5 (b)) is often obtained. It is considered that this is because the air sandwiched between the upper and lower molds 61 and 62 loses an escape place and pushes the material 7 of the toilet seat cushion inward. The presence of the dent 24 does not cause any functional problems, but it makes the appearance worse.

It is preferable to provide an air vent hole 63 (FIG. 4 (b)) in the mold in order to eliminate the dent 24 and make the thickness as uniform as possible as shown in FIG. 5 (a).

Particularly preferred as the polyethylene foam are those having an apparent density of 30 to 120 kg / m ³ , more preferably 40 to 100 kg / m ³ , most preferably 50 to 80 kg / m ³ , and a 25% compressive stress of 45 to 45. It is 240 kPa, more preferably 70 to 200 kPa, and most preferably 120 to 140 kPa. Specifically, for example, "San Perca" (registered trademark) "L-1500" of Sanwa Kako Co., Ltd. (Headquarters Kyoto City) can be used.

Especially preferred as EVA foam, apparent density 0.170~0.065kg / m ^3, more preferably 0.080~0.055kg / m ^3, and most preferably 0.090~0.050kg / m ^3, 25% compressive hardness of 20.0 to 10.0 N / cm ² , more preferably 15.0 to 7.0 N / cm ² , most preferably 12.0 to 4.0 N / cm ² . It is a thing. Specifically, for example, "Transform" (registered trademark) "TC-1000" of Daiichi Kagaku Co., Ltd. (Headquarters Akashi City) can be used.

The above material 7 can be colored in various ways, but when expressed in 10 steps (0 (black) to 10 (white)) of brightness used in the Munsell color system, it is about 7 to 10. It is preferably present, and particularly preferably white (10) or a light cream color. This is because it is easy to determine whether the toilet seat cushion is dirty.

The thickness of the material 7 may be about 10 to 13 mm before processing and about 8 mm after processing. Depending on the application, the thickness after processing can be further increased.

Heating can be performed at 100 to 150 ° C., preferably 120 to 130 ° C.

In this way, the three-dimensional toilet seat cushion 1 as shown in FIG. 4C is obtained. After that, the burr 21 is removed, and the fixing portion 3 on the back surface is attached to complete the process.

The toilet seat cushion 1 manufactured in this way is three-dimensional and can be easily placed on the toilet seat sold by each toilet bowl manufacturer. Further, the toilet seat cushion 1 has a size and a shape that substantially covers the range of contact between the user's thigh and the toilet seat, and can avoid a cold feeling when sitting directly on the toilet seat.

Further, since it is integrally molded with a soft foamed resin, it is easy to discriminate the dirt even when the toilet seat cushion 1 is soiled during defecation, and the dirt can be completely wiped off immediately with a disinfectant wet tissue or the like. The toilet seat cushion of the present invention is suitable for use in hospitals and facilities requiring long-term care.

As described above, the thickness of the toilet seat cushion of this embodiment as a product is about 8 mm. However, depending on the intended use, it is also possible to stack and use about 2 to 5 sheets, preferably 3 to 4 sheets. In FIG. 7, three sheets are stacked. Even if several three-dimensional toilet seat cushions of the present invention are stacked, they are in close contact with each other and the shape is maintained stably, so that the height direction can be easily adjusted. One example of a preference for tall toilet seat cushions is when a person in a wheelchair sits on the toilet seat. When transferring from a wheelchair to a toilet seat, it may not be possible to move smoothly if there is a large step between the two. If the height can be made uniform by the toilet seat cushions stacked at such times, it will be easier to move.

1 Toilet seat cushion 2 Main body 21 Burr 22 Outer rising part 23 Inner rising part 3 Fixed part 31 Middle part of fixed part 4 Toilet bowl 5 Toilet seat 6 (61,62) Mold 63 Air vent hole 7 Material of toilet seat cushion

Claims (9)

A toilet seat cushion (1) having a pair of symmetrical left and right main bodies, and each toilet seat cushion (1) is
A toilet seat cushion having a three-dimensional body (2) that almost conforms to the shapes of various toilet seats sold in the past or currently sold by toilet seat manufacturers and their substantially equivalents.
It has a size and shape that substantially covers the area of contact between the user's thigh and the toilet seat, and
The main body (2) is integrally molded entirely of soft foamed resin (7), and the toilet seat cushion (1) has all contours made of curved surfaces, and a linear portion is substantially formed. Toilet seat cushion characterized by non-existence. When each toilet seat cushion (1) is spread out in a flat shape and measured, H is 380 mm to 450 mm, W is 170 mm to 210 mm, W1 is 100 mm to 140 mm, W2 is 110 mm to 140 mm, and W3 is 100 mm to 130 mm. Here, H is the vertical length of the toilet seat cushion, W is the lateral length of the toilet seat cushion, and W1 is the toilet seat at a point (a) 100 mm forward from the 0 point of the toilet seat. The width direction length of the cushion, W2 is the width direction length of the toilet seat cushion at a point (b) 200 mm forward from the 0 point of the toilet seat, and W3 is a point (c) shifted 40 mm parallel to the center line of the toilet seat. The toilet seat cushion according to claim 1, which is the length in the width direction of the toilet seat cushion, and point 0 is the rear side where the toilet seat center line and the toilet seat center opening intersect. The toilet seat cushion according to claim 1 or 2, wherein the soft foamed resin (7) is polyethylene foam or EVA (ethylene vinyl acetate) foam. The method according to any one of claims 1 to 3, which is 7 to 10 when the color of the soft foamed resin (7) is represented by the brightness of the 10-step) used in the Munsell color system in the finished product. Toilet seat cushion. Any of claims 1 to 4 in which a non-slip fixing portion (3) is attached to the back surface of the toilet seat cushion (1) so that the toilet seat cushion (1) can be stably attached without being displaced. Toilet seat cushion described in Crab. It is a manufacturing method of the toilet seat cushion (1).
The process of preparing upper and lower molds (61, 62) having complementary recesses of the toilet seat cushion, and
A step of heating the plate-shaped soft foamed resin material (7) at 100 to 150 ° C.
A step of placing the soft foamed resin material (7) between the upper and lower molds (61, 62) and molding it into the shape of a toilet seat cushion.
A method for manufacturing a toilet seat cushion (1), which comprises a step of taking out the toilet seat cushion (1) from the mold and removing burrs. The method according to claim 6, wherein the soft foamed resin is polyethylene foam or EVA (ethylene vinyl acetate) foam. The method according to claim 6 or 7, wherein the molds (61, 62) are provided with a plurality of air vent holes to eliminate the dents (24) appearing at the rising portions (22, 23) ends of the toilet seat cushion. The usage of the toilet seat cushion according to any one of claims 1 to 5, wherein the toilet seat cushion is used by stacking 2 to 5 sheets in the vertical direction on the toilet seat.

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