JPS5812650Y2 - cosmetic tools - Google Patents

Description

[Detailed description of the invention] The present invention relates to a cosmetic tool that is shaped like a pencil and whose core is used for cosmetics such as lipstick, eyebrows, and ink.

``The shaft of this type of cosmetic tool, that is, the tubular shaft that holds the core, is cut from the end to expose the core and used by holding the shaft. It is necessary to be easy to use and have appropriate rigidity.

In the case of pencils, high-quality wood is used for the shaft, but there are few materials suitable for the shaft, and in the case of this type of cosmetic tool, the outer diameter of the lead is generally larger than that of a pencil. Therefore, the outer diameter of the shaft also becomes large, which further increases the cost.

In order to eliminate these drawbacks, the shaft is made of synthetic resin into a tubular shape, and a decorative core is inserted into the tube hole or filled in a molten state and solidified by cooling. In order to facilitate cutting of the shaft portion, it is desirable that the shaft portion be made of foamed synthetic resin.

However, in the case of foamed synthetic resin, the surface is not smooth and unsightly, and the inner surface of the tube hole is also rough, so it takes time to fill or fit the core into the tube hole.

The present invention eliminates such drawbacks and will be described below with reference to the drawings.

Reference numeral 1 shows the entire cosmetic tool of the present invention, 2 is a shaft portion having a tube hole 3, and 4 is a cosmetic core fitted into the tube hole.

The shaft portion is cut 2a at one end, and a decorative core protrudes from the tip.

In its cross section, the shaft portion 2 has a skin portion forming both the inner and outer surfaces formed of non-foamed synthetic resin film layers 5, 5, and the intermediate layer is a thick foamed synthetic resin layer 6. Formed by

These are formed to such an extent that they can be easily cut with a knife or the like and difficult to bend the shaft portion by hand.

The cosmetic core 4 may be formed in advance and fit into the tube hole of the shaft portion, or a molten cosmetic may be poured into the tube hole 5 and solidified.

・Formation of the above-mentioned shaft part (this can be done as follows).

That is, a pipe having the non-foamed synthetic resin film layers 5, 5 is extruded onto the inner and outer surfaces of the foamed synthetic resin layer 6 using a pipe extrusion molding machine, and the pipe is cut into a predetermined size.

An example of the extruder's diameter is shown in FIG.

Reference numeral 8 denotes a flow path for the molten material for foamed synthetic resin, and 9 and 9 represent flow paths for the molten material for non-foamed synthetic resin. The materials meet in the flow path 10 and form a three-layer pipe, with its open end 11
It is extruded from

Note that 12 is an air hole provided in the inner diameter core metal 13, and 14 is an outer diameter core metal.

The present invention has the above-mentioned structure, and the parts of the shaft excluding the outer and outer skins are formed of a foamed synthetic resin layer, so it is lightweight and easy to cut, and the skin is made of a thin non-foamed synthetic resin. Since it is formed by the coating layers 5, 5, its inner and outer surfaces are smooth and the appearance is not spoiled, and the finish of printing etc. can be prevented from having unclear details. Since the inner surface is smooth, it is easy to fit the pre-formed cosmetic core into the shaft, and it is possible to completely fill the molten cosmetics into the shaft tube hole. Pinholes are less likely to form in the cosmetic core, resulting in an excellent product.

[Brief explanation of the drawing]

FIG. 1 is a side view of the cosmetic tool of the present invention, FIG. 2 is an enlarged cross-sectional view thereof, and FIG. 3 is a sectional view of a main part of a die for an extrusion molding machine. 1... Cosmetic tool, 2... Shaft, 4.
... Cosmetic core, 5 ... Film layer, 6 ...
...Foamed synthetic resin layer.

Claims (1)

[Scope of utility model registration request] The outer skin portion forming both the inner and outer surfaces is formed by extruding the thin non-foamed synthetic resin film layers 5, 5, and the intermediate layer ρ of these two membrane layers by the foamed synthetic resin layer 6 in a total amount of three layers. A tubular shaft part 2 and a cosmetic product formed in advance in the pipe hole of the shaft part are seized, and a cosmetic product in a molten state is flowed into the pipe hole, and the cosmetic product is filled. A cosmetic tool characterized by forming a □ with a core 4.