JP3249742B2 - Manikin manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a mannequin doll,
The present invention relates to a method for manufacturing a human body model used for massage, beauty / barber training, and the like.

[0002]

2. Description of the Related Art Conventional mannequin doll manufacturing methods include:
Low pressure molding using a rotation molding device is employed. Then, plastisol such as PVC sol is put into a mold, and a method of molding while heating is often adopted, but since the mold has to be heated, room temperature molding using urethane resin has been proposed. (Japanese Patent Publication No. 6-61777).

In the cold molding technique, a non-foaming urethane resin is filled in a mold made of glass fiber reinforced plastic or the like, and the mold is rotated to manufacture a mannequin doll body.

[0004] Japanese Patent Publication No. 2-45968 discloses a double molding by rotation molding. The said double molding technology, for the purpose of obtaining a metallic plastisol molded product, plastisol is poured into a mold, formed by revolving around itself, and molded into a semi-gelled plastisol mixed with aluminum powder. , Which completely gels two types of plastisols.

[0005]

The dolls and other molded products obtained by any of the above methods have a uniform hardness throughout. By the way, since the surface of the mannequin doll preferably has a feel and texture close to human skin, it is desirable that the surface is not hard but soft. Further, it is desired that a human body model used for training of a massage or a lifesaving operation has the same elasticity as a human body. The same applies to head models used for beauty and barber training.

According to the above-mentioned conventional method, it is possible to make the surface soft if a soft resin is used at the time of curing. However, if a soft resin is used, it becomes balloon-like, and as a mannequin doll, it has stability and shape retention. There is a problem that the rigidity is insufficient for training such as massage because of lack of stiffness. The present invention provides a method for manufacturing a phantom in which a surface is soft and elastic and a soft surface layer is supported by a hard inner layer, and an object of the present invention is to solve the above problems.

[0007]

According to the present invention, a first urethane resin, which is soft at the time of curing, is charged into a mold, and the mold revolves at room temperature to revolve the first urethane resin. Gelation, and then the first urethane completely cures
At the point in time, a second urethane resin that is hard at the time of curing is put into the mold, and the mold revolves under normal temperature to cure the second urethane resin, thereby forming a human model. To be manufactured.

The mold is made of metal, silicon, glass fiber reinforced plastic or any other suitable material. The structure is generally a split type structure that can be opened and closed. In addition, the charging timing of the second urethane resin may be such that the first urethane resin is gelled to such an extent that the first urethane resin and the second urethane resin do not migrate. It is preferable to add the second urethane resin when the first urethane resin is not completely cured, since the bond between the two urethane resins is strengthened. The amounts of the two urethane resins are appropriately selected depending on the desired elasticity and rigidity of the aggregate. The specific components of the urethane resin are also selected in consideration of elasticity and rigidity.

[0009]

In the present invention, the first urethane resin, which is soft at the time of curing, is put into a mold and the mold is revolved by itself, whereby the first urethane resin is formed into a desired shape. Gels at room temperature. Next, a second urethane resin that is hard at the time of curing is put into the mold, and the second urethane resin is brought into close contact with the inner surface of the first urethane resin by revolving the mold around itself. Cures at room temperature. The first urethane resin cures to form a soft and resilient surface layer, and the second urethane resin cures to form an inner layer that functions as a hard aggregate.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A first urethane resin 1 which is soft at the time of curing is put into a mold frame 10 having a split mold structure, and is rotated around by a rotation molding device. The surface layer 11 is obtained by molding into a gelled surface shape and gelling. Next, the opening 10a of the mold 10 is opened, and the second urethane resin 2 which is hard at the time of curing is introduced into the inside of the first urethane resin 1, and is rotated around by a rotation molding device, and the second urethane resin is rotated. 2
Is adhered to the surface layer 11, molded and cured to form the inner layer 12.
Get. After that, the mold 10 is opened and the molded product (human body model) 3
Take out.

In the molded article 3, the surface layer 11 is soft and elastic. This surface layer is supported by the hard inner layer 12. For this reason, when the surface layer is pressed with a finger or the like, the pressure is received by the inner layer 12 serving as the aggregate, and the same feeling as when the pressure is received by the bone when the human body is pressed is obtained. Therefore, when used as a training human body model for massage and life-saving operation, beauty and barber, it is possible to obtain an operation and feel similar to those of a human body, and practical training is possible. Moreover, since the surface layer 11 is soft, an impression close to the skin of a human body is obtained, and a realistic mannequin doll is obtained.

[0012]

EXAMPLES The first urethane resin which is soft at the time of curing was made up of the following components. Liquid A Polyether polyol 97 parts Colorant 1 part Hygroscopic agent 3 parts Catalyst 1.5 parts Liquid B MDI (methylene diphenyl diisocyanate) 25 parts Plasticizer (BBP) 75 parts A to B ratio 100: 28

The second urethane resin which is hard at the time of curing was composed of the following components. Liquid A 97 parts polyether polyol 97 parts Hygroscopic agent 3 parts Catalyst 0.5 part Liquid B MDI (methylene diphenyl diisocyanate) 100 parts Ratio of A to B 100: 70

The liquid A and liquid B of the first urethane resin are stirred, and the mixed liquid is immediately poured into a mold. Next, the mixture is caused to revolve on a rotation molding device at room temperature for 10 minutes to gel the mixture. The rotation is 5 revolutions per minute and the revolution is 8 revolutions per minute.

The liquid A and the liquid B of the second urethane resin are stirred, the inlet 10a of the mold 10 is opened, and the mixture is immediately poured into the mold. Next, the mixture is allowed to revolve on a rotation molding apparatus at room temperature for 20 minutes to gel the mixture. The rotation is 5 revolutions per minute and the revolution is 8 revolutions per minute. Since both urethane resins are hardened by the above operation, the mold is opened and the mold is released to obtain a molded product (human body model) 3.

[0016]

According to the present invention, a human body model is manufactured by double molding of the first urethane resin which is soft at the time of curing and the second urethane resin which is hard at the time of curing. A phantom is obtained in which the elastic surface layer formed by the urethane resin is supported by the hard inner layer formed by the second urethane resin. Since the material is urethane resin, molding at room temperature is possible, and unlike the PVC sol, there is no danger of two types of urethane resin migrating during molding, and the surface layer and the inner layer are clearly separated, A phantom having a structure similar to that of the above is obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a first urethane resin is put into a mold in an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which a second urethane resin is charged into a mold.

FIG. 3 is a cross-sectional view of a phantom manufactured according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 First urethane resin 2 Second urethane resin 3 Molded product 10 Mold 11 Surface layer 12 Inner layer

──────────────────────────────────────────────────続 き Continued on the front page (72) Harumi Horikoshi 3-26-5 Asakusabashi, Taito-ku, Tokyo Co., Ltd. Kobayashi Co., Ltd. (72) Makoto Shimada 3-26-5 Asakusabashi, Taito-ku, Tokyo Stock Company (56) References JP-A-55-91621 (JP, A) JP-A-6-170871 (JP, A) JP-A-51-134764 (JP, A) JP-B-6-61777 (JP, A) B2) JP 2-170 (JP, B2) JP 6-339 (JP, B2) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B29C 41/04 A47F 8/00

Claims (1)

(57) [Claims] 1. A first urethane resin which is soft at the time of curing is charged into a mold, and the mold revolves under normal temperature to gel the first urethane resin, and then the first urethane resin is gelled.
At the time when the urethane resin is not completely cured , a second urethane resin that is hard at the time of curing is put into the mold, and the mold is revolved at normal temperature to revolve the second urethane resin. A method for manufacturing a phantom, characterized by curing.