JP5491985B2 - Cosmetic container - Google Patents

Description

  The present invention relates to a cosmetic container having a cushioning property that has a small number of parts and can be reduced in size.

  If the cosmetic container is accidentally dropped during transportation or use, or if it is accidentally applied to another object during transportation, the internal cosmetic may be broken or crushed by the impact of dropping or collision. A function to prevent this is required. For this reason, as a thing which can prevent a crack etc. of cosmetics, for example, a container (for example, refer to patent documents 1) which provided a buffering material in the bottom in order to absorb shock etc., and the bottom in a double structure Various containers have been proposed, such as a container (see, for example, Patent Document 2).

Japanese Utility Model Publication No. 7-20108 Japanese Patent Laid-Open No. 2004-97806

  However, in the case where the cushioning material is provided on the bottom surface as described above, the number of parts increases and the management side such as inventory management becomes complicated. Moreover, since the space which arrange | positions this on a container bottom face is required, a container enlarges. And in the thing which made the bottom face a double structure, since the extra cost and labor are required for the manufacture, the further improvement is calculated | required.

  The present invention has been made in view of such circumstances, and is a cosmetic that can absorb impacts and the like when dropped, and that can be reduced in size, reduced in number of parts, and reduced in size. The purpose is to provide containers.

  In order to achieve the above object, the present invention comprises a container body having a recess for housing cosmetics, and a lid for opening and closing the cosmetic body, and the bottom surface of the recess is formed into a flexible thin wall. And the central part of the bottom surface is formed higher than the peripheral part, the frame-like part between the central part and the peripheral part becomes an inclined surface that becomes higher toward the inner peripheral side, and at least a part of the frame-like part is peripheral. The gist of the cosmetic container is curved in a wave shape in the direction.

  In the cosmetic container of the present invention, the bottom surface of the concave portion of the container main body is formed of a flexible thin wall, and the center portion of the bottom surface is formed higher than the peripheral portion, and the space between the central portion and the peripheral portion is Since the frame-shaped portion has a higher inclined surface as it goes to the inner peripheral side, and at least a part of the frame-shaped portion is curved in a wave shape in the circumferential direction, when the impact or the like is applied to the container body, the frame When the wave-like curved portion of the shaped portion is elastically deformed, the impact or the like can be absorbed. For this reason, even if the cosmetic container of the present invention is accidentally dropped on the floor during transportation or use, or accidentally applied to another object while being carried, the impact etc. may cause The contained cosmetic is prevented from cracking or breaking. Moreover, in the cosmetic container of the present invention, unlike the conventional example, there is no need to use a cushioning material as a separate part, and the cushioning material is integrally formed, so the number of parts is small, and management aspects such as inventory management. Simplify. In addition, it is not necessary to provide a space for incorporating a separate cushioning material in the cosmetic housing recess, and the size of the entire container can be reduced accordingly. Furthermore, in the cosmetic container of the present invention, unlike the conventional example, it is not necessary to have a double bottom structure, so that the container body can be made thinner and lower in cost.

  In the present invention, when the thickness of the bottom surface is set to 0.2 to 1 mm, the wavy curved portion provided in the frame-shaped portion on the bottom surface of the cosmetic container is more easily elastically deformed. For this reason, it becomes possible to further absorb an impact at the time of dropping or the like at this portion.

  In the present invention, “curved in a wavy shape” is not limited to a shape in which the cross section is undulated in an arc shape, but the cross section is bent at a predetermined angle to form irregularities and become wavy. (Refer to FIGS. 10A and 10B).

It is a perspective view of one Example of this invention. It is a perspective view of the container main body in the said Example. It is aa sectional drawing of FIG. It is a disassembled perspective view of the container main body in the said Example. It is a partial enlarged view of the container main body in the said Example. (A), (b) is explanatory drawing of one Example of this invention. It is explanatory drawing of one Example of this invention. It is explanatory drawing of one Example of this invention. It is explanatory drawing of one Example of this invention. (A), (b) is explanatory drawing of one Example of this invention.

  Next, an embodiment for carrying out the present invention will be described. However, the present invention is not limited to this embodiment.

  FIG. 1 is a perspective view of a compact container which is an embodiment for carrying out the present invention, wherein 1 is a container body and 2 is a lid. The container body 1 has a substantially square shape with a plan view of 8 cm × 8 cm and is made of polyethylene terephthalate (hereinafter referred to as “PET”). The lid body 2 is made of PET that covers the upper surface of the container body 1. . A hinge portion (not shown) projects downward from the rear end portion of the lid body 2, and this hinge portion engages with the rear end portion (not shown) of the container body 1, The lid 2 opens upward. In FIG. 1, each part is schematic and is different from the actual size, thickness, etc. (the same applies to the following figures).

  As shown in FIG. 2, the container body 1 has a decorative dish receiving recess formed in a substantially square dish-shaped body composed of a bottom surface 3 and a peripheral wall 6, and the whole is integrally formed by injection molding. ing. And the bottom face 3 has the center part 5 formed higher than the peripheral part, and the frame-shaped part 4 between the central part 5 and a peripheral part. Then, as shown in FIG. 3 which is an aa cross-sectional view of FIG. 2, the frame-like portion 4 forms an inclined surface that becomes higher toward the inner peripheral side. Moreover, the area | region part opened to 90 degrees of each corner | angular part of the four corners of the said frame-shaped part 4 is formed in the wavy curved part (alpha) which consists of what is called bellows-like unevenness | corrugation. Note that the angle of the bending portion α is assumed to be a shape in which the bending portion α is fan-shaped at the four corners of the frame-shaped portion 4, and the main point enters the central portion 5 from the frame-shaped portion 4 at the corner. The position P (see FIG. 2) is an angle that opens in a fan shape (the same applies hereinafter).

  The shape of the curved portion α will be described in more detail. As shown in FIG. 4 and FIG. 5 which is a partially enlarged view thereof, the cross section between the substantially trapezoidal small piece α1 and the adjacent small piece α2 is bent at an angle of 150 °. This is repeated to form a wavy curve.

  Such a container main body 1 can be obtained as follows, for example. That is, first, the PET resin composition is mixed and may be molded as it is or after being pelletized, and can be molded by injection molding, vacuum molding, or the like. The thickness of both the bottom surface 3 and the peripheral wall 6 is 0.6 mm, which is very thin, and the whole has flexibility.

  According to this configuration, the container body 1 is formed of flexible PET, the center portion 5 of the bottom surface 3 is formed higher than the peripheral portion, and the frame-like portion 4 between the central portion 5 and the peripheral portion. However, since the curved surface α is provided at the four corners of the inner peripheral side and curved in a bellows shape with the circumferential irregularities connected in a wavy shape, an impact or the like is applied to the container body 1. When added, the curved portion α is elastically deformed and can absorb the impact and the like. Further, since the bottom surface 3 is formed to be thin with a thickness of about 0.6 mm, the unevenness of the curved portion α narrows or widens the angle between each other, and further absorbs shocks and the like when dropped. can do. Furthermore, unlike the conventional cosmetic container, there is no need to use a cushioning material as a separate part, and the cushioning material is integrally formed, so that it can be manufactured easily and at low cost. Moreover, since it is not necessary to provide a space for incorporating a separate cushioning material in the cosmetic housing recess in order to prevent external impacts, it can be formed thin. And since the whole number of parts is small, management aspects, such as inventory management, are simplified.

  In the above example, the container body 1 is made of PET, but other flexible synthetic resins or the like can be used. In particular, if synthetic resin is PET, methacrylic resin (PMMA), acrylonitrile / styrene resin (AS), acrylonitrile / butadiene / styrene resin (ABS), or polypropylene (PP), moldability, durability, and light weight are achieved. This is preferable.

  In the above example, the thicknesses of the container body 1 (the bottom surface 3 and the peripheral wall 6) are both about 0.6 mm, but can be 0.2 to 2 mm and different thicknesses. In addition, when the said thickness is too thin, the tendency for the intensity | strength of the container main body 1 to be impaired will be seen, and conversely, when it is too thick, the tendency for it to become difficult to deform elastically will be seen. However, the bottom surface 3 is preferably thin, and a thickness of 0.2 to 1 mm is suitably used.

  In the above example, the curved portions α provided at the four corners of the frame-like portion 4 are provided in a region opened at an angle of about 90 °. However, the range in which the curved portions α are provided can be appropriately set. For example, as shown in FIGS. 6 (a) and 6 (b), the shock absorbing effect can be obtained even if it is provided in an area opened from 60 ° (FIG. 6 (a)) to 120 ° (FIG. 6 (b)). Can be obtained. Moreover, you may provide the curved part (alpha) not only in the four corners of the frame-shaped part 4, but over the perimeter. In this case, since the part which becomes easy to elastically deform increases, it can be expected that the impact absorbing effect is further enhanced.

  Furthermore, in the above example, the bending portion α is provided with 13 bellows fold lines (including both mountain folds and valley folds) in a region opened at an angle of about 90 °, but the present invention is not limited thereto. About 19 pieces are preferably included. This is because if the folding density of the bellows is too fine, it is difficult to provide a height difference in the circumferential direction, and conversely, if it is too sparse, it tends to be difficult to obtain an impact absorbing effect due to elastic deformation of this portion.

  In the above example, the container body 1 and the lid body 2 are formed in a substantially square shape in plan view, and the bottom surface 3 is formed in a substantially square shape. However, the container body 1 and the lid body 2 may be deformed. For example, as shown in FIG. 7, the container main body 1 and the lid body 2 can be formed in a substantially circular shape (diameter: about 8 cm) in plan view, and the bottom surface 3 can be formed in a substantially circular shape. At this time, the curved portion α is provided at four locations of the frame-like portion 4 in regions opened at about 40 ° with respect to the circle center P ′. Further, as shown in FIG. 8, the four portions of the frame-like portion 4 are provided with areas opened at about 20 °, respectively, or as shown in FIG. 9, the four portions of the frame-like portion 4 are each about 50 °. A similar shock absorbing effect can be obtained even if it is provided in an open area. And the said curved part (alpha) can be provided not only in four places of the frame-shaped part 4, but arbitrary places, such as three places and five places, for example, even if it provides over the perimeter of the frame-shaped part 4. A similar shock absorbing effect can be obtained.

  Furthermore, in the above example, the shape of the bending portion α is wavy in a so-called bellows state in which the cross-sectional view is zigzag as shown in FIG. 10A, but as shown in FIG. A similar shock absorbing effect can be obtained even if the sight is formed into a wavy curve with an arc shape. In the above example, the height difference H of the curved portion α is about 0.5 mm, but can be set as appropriate depending on the size, material, and the like of the container body 1.

  The present invention relates to a cosmetic container that can absorb external impacts and the like, has a small number of parts, and can be downsized.

DESCRIPTION OF SYMBOLS 1 Container main body 3 Bottom face 4 Frame-shaped part 5 Center part (alpha) Curved part

Claims (2)

  A container body having a recess for containing cosmetics and a lid that covers the cover so as to be openable and closable. The bottom surface of the recess is formed into a flexible thin wall, and the center of the bottom is formed higher than the peripheral edge. The frame-shaped portion between the central portion and the peripheral portion becomes an inclined surface that is higher as it goes to the inner peripheral side, and at least a part of the frame-shaped portion is curved in a wave shape in the circumferential direction. Cosmetic container. The cosmetic container according to claim 1, wherein the thickness of the bottom surface is set to 0.2 to 1 mm.

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