JPH019441Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a drum body that directly stores cosmetics and is assembled into a compact container, and it facilitates the work of assembling the drum body into a compact container. The purpose is to protect the cosmetics stored in the drum body from mechanical impact from the outside.

[Conventional technology]

To store cosmetics in a compact container, the cosmetics are molded into a fixed shape by using a drum body with a short cylindrical shape with a bottom. This is accomplished by assembling them together into a compact container.

Conventionally, this drum body was assembled into a compact container by fitting and assembling the drum body containing the cosmetic into a recess for assembly formed in the compact container, and then attaching the drum body and the compact container to both sides. Adhesive fixation using adhesive tape was used.

In addition, since the drum body not only functions as a mold for cosmetics but also directly stores and holds the cosmetics, it should be formed from a thin metal plate such as aluminum, which is mechanically and physically stable. However, since the molding precision of the synthetic resin compact container is inferior to the molding precision of the metal drum body, the molding dimensions of the recess for storing the drum body of the compact container must be determined in advance. The molding was performed with a setting larger by the molding error of the synthetic resin product.

Furthermore, the drum body that directly contained cosmetics was directly fitted and assembled into a compact container molded from a relatively hard synthetic resin material in order to obtain higher molding precision and a better appearance. .

[Problem that the invention attempts to solve]

In this way, conventional drum bodies were assembled and fixed to compact containers using double-sided adhesive tape, so a completely separate item called double-sided adhesive tape was required to assemble them into compact containers. This not only makes the assembly operation troublesome but also complicates the work, and furthermore, it is necessary to take care to prevent the double-sided adhesive tape from being seen from outside the compact container.

In addition, the compact container body made of synthetic resin is inevitably inferior to the metal drum body in its molding dimensional accuracy, so when the drum body is assembled, a gap is formed between the drum body and the compact container. This not only spoils the appearance of the compact container, but also causes foreign matter to enter the gap and cause discomfort to the user.

Furthermore, since the drum body is directly fitted and assembled into the compact container molded from a relatively hard synthetic resin material, the impact force acting on the compact container is absorbed by the drum body with almost no buffering effect. As a result, the solid cosmetics stored in the drum body often crumble very easily due to external impact forces.

[Means for solving problems]

The present invention was devised to solve the problems and inconveniences of the conventional examples described above, and is constructed by assembling and positioning a comparatively soft synthetic resin cylindrical body on the outer periphery of a drum body made of a thin metal plate. The present invention will be described below with reference to the drawings showing an embodiment of the present invention.

The drum body for compact containers according to the present invention is
A fitting cylindrical piece 3 having a short cylindrical shape with a diameter larger than that of the cylindrical wall 2 is integrally provided at the upper end of the cylindrical wall 2 of a bottomed short cylindrical body made of thin metal plate such as aluminum through a step 4. and an upper end portion of the inner peripheral surface of an outer cylinder piece 6 which is shaped like a short cylinder and has a height slightly larger than that of the drum body 1 and an inner diameter approximately equal to the outer diameter of the fitting cylinder piece 3. The drum body 1
The drum body 1 and the outer cylinder 5 are made of a relatively soft synthetic resin and have a circumferential fitting groove 9 in which the fitting cylinder piece 3 is tightly fitted. It is constructed by welding and assembling the cylinder piece 3 and the fitting circumferential groove 9 using a welding means such as ultrasonic welding.

The fitting circumferential groove 9 has an inner flange-like ring-shaped top plate 8 integrally connected to the upper end of the outer cylinder piece 6, and connects the fitting cylinder piece 3 of the drum body 1 from the inner peripheral end of the ring-shaped top plate 8. It is formed by hanging inner cylinder pieces 7 of the same height.

When forming this circumferential fitting groove 9, the width of the ring-shaped top plate 8 should be set to be equal to or slightly smaller than the thickness of the fitting cylinder piece 3 between the drum body 1 and the outer cylinder body.
This is convenient for achieving a stronger assembly with the

Further, since the height of the inner cylinder piece 7 is set to be equal to that of the fitting cylinder piece 3, this inner cylinder piece 7
The lower end surface of will be in contact with the stepped portion 4,
Therefore, by welding the drum body 1 and the outer cylindrical body 5, the lower end of the inner cylindrical piece 7 is tightly welded to the stepped portion 4.

[Function and Examples]

Since the drum body according to the present invention has the above-described structure, the assembly involves attaching the drum body 1 and the outer cylindrical body 5, each of which has been formed into a predetermined shape, to the drum body 1. The fitting cylinder piece 3 of the drum body 1 is fitted into the fitting circumferential groove 9 of the outer cylinder body 5 by fitting from above, and in this state, the drum body 1 and the outer cylinder are connected by means such as ultrasonic welding. Achieves welding and fixation with the body 5.

The fitting cylinder piece 3, which is the main part that achieves welding and fixation with the outer cylinder body 5, has a larger diameter than the cylinder wall 2, which is the main part of the drum body 1. The inner cylindrical piece 7, which is a It can be located on an extension of the inner peripheral surface.

In addition, since the inner diameter of the outer cylinder piece 6 of the outer cylinder body 5 is approximately equal to the outer diameter of the fitting cylinder piece 3, there is approximately a step between this outer cylinder piece 6 and the cylinder wall 2. A gap 10 equal to the width of the portion 4 will be formed.

In this way, the gap 10 is formed between the cylinder wall 2 and the outer cylinder piece 6, so when the drum body according to the present invention is assembled into a compact container, this gap 10 is formed between the cylinder wall 2 and the outer cylinder piece 6.
0 and the elasticity of the synthetic resin material forming the outer cylinder 5, a sufficient buffering effect is exerted, and this buffering effect allows the cosmetics stored in the drum body to be stored in a compact container. This provides protection from external impact forces acting on the

Furthermore, since the outer cylinder body 5 made of synthetic resin is located outside the drum body 1 made of a thin metal plate, assembly into the compact container is accomplished by the outer cylinder body 5. As mentioned above, since the outer cylinder 5 is made of a soft synthetic resin material, it can be sufficiently elastically deformed. Due to the deformation, the drum body can be immovably assembled and fixed to the compact container without any gaps.

Similarly, the forming equipment for the drum body 1 made of thin metal sheet is extremely expensive, but in order to form a drum body with slightly different dimensions, a completely new forming apparatus must be manufactured. However, in the case of the drum body of the present invention, even if the same drum body 1 is used, the outer cylindrical body 5 that is assembled and fixed to the drum body 1 is By setting the dimensions appropriately, it is possible to freely obtain drum bodies with different outer diameter dimensions, and this allows the use of a single drum body 1 to be molded into several types of drum bodies with different dimensions. You will be able to do so.

The drum body 1 and the outer cylindrical body 5 are set in an assembled position by fitting the fitting cylindrical piece 3 formed on the drum body 1 with the fitting circumferential groove 9 formed on the outer cylindrical body 5. However, the limit of assembly between the drum body 1 and the outer cylindrical body 5 is accurately set by the inner cylindrical piece 7 forming the fitting circumferential groove 9 abutting against the stepped portion 4. Therefore, the assembly of the drum body 1 and the outer cylindrical body 5 can always be achieved reliably and accurately.

[Effect of idea]

As is clear from the above description, the drum body for a compact container according to the present invention can be firmly assembled and fixed to the compact container by itself due to the elastic action of the outer cylinder made of a soft synthetic resin material. At the same time, the cosmetics stored in the drum body can be protected by a buffering effect against external impact forces, and the outer diameter of the drum body can be freely set without being limited by the dimensions of the drum body. can do.

In addition, the drum body and the outer cylinder are assembled by fitting the fitting cylinder piece 3 formed on the upper end of the cylinder wall through a step into the fitting circumferential groove formed in the outer cylinder. Since this is achieved by Since it is possible to prevent the drum from protruding inward from the extended surface of the inner circumferential surface of the cylinder wall, it is possible to achieve many excellent effects such as being able to obtain a drum body with a smooth inner circumferential surface. It is something.

[Brief explanation of the drawing]

The drawing is a partially cutaway front view showing an embodiment of the drum body according to the present invention. Explanation of symbols: 1; Drum body; 2; Cylinder wall; 3;
Fitting cylinder piece, 4; Step portion, 5; Outer cylinder body, 6; Outer cylinder piece, 7; Inner cylinder piece, 8; Ring-shaped top plate, 9; Fitting circumferential groove, 10; Gap.

Claims (1)

[Scope of utility model registration request] A fitting cylindrical piece 3 having a short cylindrical shape with a diameter larger than that of the cylindrical wall 2 is integrally provided at the upper end of the cylindrical wall 2 of a bottomed short cylindrical body made of thin metal plate such as aluminum through a step 4. the upper end of the inner circumferential surface of the outer cylinder piece 6, which is shaped like a short cylinder and has a height slightly larger than that of the drum body 1 and an inner diameter approximately equal to the outer diameter of the fitting cylinder piece 3. The drum body 1
The drum body 1 and the outer cylinder 5 are made of a relatively soft synthetic resin and have a circumferential fitting groove 9 in which the fitting cylinder piece 3 is tightly fitted. A drum body for a compact container constructed by welding and assembling a cylindrical piece 3 and a fitting circumferential groove 9 using a welding means such as ultrasonic welding.