JPH0448048B2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to improvements in bathtubs.

<Conventional technology> Most conventional bathtubs, whether made of stainless steel or plastic, are designed to improve strength and uniformity of quality. Examples include (1) Utility Model Application No. 114238/1983. , (2) There is a bathtub disclosed in Utility Model Publication No. 11473/1983, and the invention of (1) is a bathtub in which a bent outward flange and a molded flange made of wood or plastic are connected directly to each other by overlapping the joint. It has a structure that is removably fixed with screws. Applicable
The invention (2) provides for a reinforcing member which is bent outward from the upper end of the resin bathtub to support the lower end from the inner surface of the hanging piece of the flange and bent slightly upward from the outer surface of the lower end. This is a bathtub in which the flange of the resin bathtub is reinforced with a reinforcing member and the foamed cured resin without using screws or the like by integrally fixing the foamed cured resin injected into the valley between the upper ends and cured to the flange.

<Problems to be Solved by the Invention> If we combine the two conventional inventions, we can find a foamed hardened resin in which an inverted U-shaped flange made of wood or plastic is injected into the valley of the upper end of a resin bathtub without fixing it with screws. However, the flange is rigid and thin to provide a warm appearance, and the flange joint of the stainless steel bathtub is ground using advanced technology to increase strength. This is only to prevent deterioration and to omit the grinding technology and process.
The invention in this example does not intend the safety of bathers at all, and there is no consideration given to safety in its construction.

Originally, the bathroom, bathtub, and washing area become moist when taking a bath, and hot water and soap can make them slippery, making it difficult for healthy people, elderly people with weak legs, and people with physical disabilities to slip in the bathtub or washing area. In the event of a fall, the rigid thin flange itself or its corners could hit the head or body strongly, which was extremely dangerous. In a social situation where the number of elderly people is gradually increasing, there is a demand for the development of safe bathtubs for these people and people with physical disabilities, and this point is an issue to be solved by the present invention.

<Means for solving the problem> Soft foaming resin is injected and filled into the cavity of a mold provided with a constant cavity around the outer periphery of a bathtub flange with a large number of through holes, and the resin is foamed independently. 1. A bathtub characterized by having a buffer flange made of closed cells, which is integrally attached to the outer surface of the bathtub flange to form a high-density surface skin layer and whose interior is highly elastic.

<Function> By protruding a shock absorber flange made of soft foam resin over the bathtub flange, it prevents the bather from falling.
The shock caused by a bruise is absorbed by the buffering function of the buffer flange.

<Example> The drawings show one embodiment of the bathtub of the present invention, FIG. 1 is a perspective view with a part of the bathtub A cut away, FIG. 2 is an enlarged sectional view of the main part, and FIG. This is an overall perspective view of the bathtub B of the embodiment. In the figure, the bathtub 1 is made of cast iron, steel plate, etc. as a base with enamel processing or unprocessed stainless steel, and has a stepped portion 2' at the upper end edge. The flange 2 is integrally bent outward through the flange 2, and the flange 2 has a large number of through holes 3, 3, etc. arranged in a row at equal or unequal intervals over the entire circumference, and the stepped portion 2 of the flange ', the upper surface, corner portion 4, and lower surface are covered with a resin molding mold (not shown) while maintaining a certain cavity, and the mold is set.

When the soft foaming resin is injected under pressure into the cavity formed between the mold and the flange, the unfoamed soft foaming resin uniformly diffuses and fills the cavity through the through holes 3 of the flange 2. The upper surface side and the lower surface side of the flange are in communication with each other, and the degree of foaming gradually increases over time, and foaming is promoted outward from the center of the cavity. The contact area is pressed and compressed to form a high-density film, and as shown in Figure 2, a surface layer or skin layer 6 is formed by itself even though it is the same foamable resin, and after foaming is completed, the resin mold is removed. Then, the buffer flange 5 is formed. The buffer flange 5 has a smooth surface with high density on the surface in contact with the resin molding die, and the inside thereof has a large number of independent bubble layers, so it has a remarkable buffering effect against external impacts. demonstrate. By providing the stepped portion 2', the buffer flange 5 extends to the inner surface of the upper end of the bathtub, which is extremely effective in absorbing the feeling in the bathtub and in case of shock. Moreover, the buffer body is configured to reinforce the lower surface side of the base of the bathtub flange.

The shape of the cavity of the resin molding die for molding the buffer flange 5 may be arbitrary. For example, as shown in FIG. If a ivy-shaped mold is used, the pillow 7 can be integrally formed along the shape.

The pillow 7 allows the bather to take a bath in a comfortable, face-up position, increasing the relaxing effect, and even if the bather falls and hits the pillow, due to its material, it will not hurt the body or head. It is extremely safe because it has the effect of sufficiently cushioning the impact of

<Effects of the invention> The structure of the novel bathtub of the present invention takes safety into account,
The action is as described above, and the following effects are achieved.
(1) The buffer flange integrally attached to the outer periphery of the bathtub flange is extremely easy to manufacture because it is constructed by insert foam molding a soft foam resin material.
(2) Since the buffer flange is integrally adhered to the bathtub flange by the above-mentioned foam molding, it is strong and does not peel off easily. (3) The shock absorber flange has a skin layer on the surface and a closed cell inside, giving it a warm appearance and feel.Since it utilizes the cushioning action of air rather than the elasticity of the material, it is easy to grasp the shock absorber flange when taking a bath. Or, in the unlikely event that you fall, the impact is extremely soft and absorbs the impact, playing a major role in preventing danger.

[Brief explanation of the drawing]

The drawings show an embodiment of the bathtub of the present invention; FIG. 1 is a partially cutaway perspective view of the buffer flange attached to the bathtub flange; FIG. 2 is an enlarged vertical cross-sectional view of the main part; 3 is a perspective view of a bathtub of another embodiment, 1... bathtub, 2... bathtub flange, 3... through hole, 4...
Corner, 5...Buffer flange.

Claims (1)

[Claims] 1. A resin molding mold is equipped on the outside covering a bathtub flange with a large number of through holes, and maintains a certain cavity between the bathtub flange, and the cavity is filled with a soft foamable resin and foamed. A bathtub characterized in that a buffer flange made of internal closed cells with a high-density skin layer on the surface is integrally adhered to the outer periphery of the bathtub flange.