Inverted tube container

Abstract

To provide an inverted tube container that allows for easy removal of the discharge port of the inverted tube. [Solution] The system comprises a storage section that is sealed at one end to contain the contents, and a head section connected to the other end of the storage section and having a discharge port for the contents, The head portion includes a tapered section that protrudes toward the discharge port and gradually decreases in diameter, a shoulder section that connects the tapered section and the housing section, and a neck section that connects the tapered section and the discharge port. The shoulder and neck portions are bendable by biasing the outlet toward the housing portion, and the tapered portion is a reversible tube container that deforms into a mortar-shaped shape inside the housing portion. The shoulder portion of the inverted tube container is equipped with a stepped portion that is smaller in diameter than the housing portion and a bent portion that bends during inversion deformation.

Description

Technical Field

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[0001] The present invention relates to an inverted tube container.

Background Art

[0002] In the above technical field, Patent Document 1 discloses a technique of forming a plurality of annular grooves on the inner surface of the shoulder portion of an inverted tube.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the technique described in the above document, when pulling out the discharge port of the inverted tube, there is a problem that the tube body slides and is difficult to pull out.

[0005] An object of the present invention is to provide a technique for solving the above problems.

Means for Solving the Problems

[0006] To achieve the above object, an inverted tube container according to the present invention includes a housing portion that seals one end and houses the contents, a head portion connected to the other end of the housing portion and provided with a discharge port for the contents, and includes the head portion includes a tapered portion that protrudes toward the discharge port and gradually decreases in diameter, a shoulder portion that connects the tapered portion and the housing portion, a neck portion that connects the tapered portion and the discharge port, and includes The shoulder portion and the neck portion are bendable by biasing the outlet toward the housing portion, and the tapered portion is an inverted tube container that deforms into a mortar shape inside the housing portion, The shoulder portion is formed to have a smaller diameter than the housing portion. multiple It comprises a stepped section and a bent section that bends during inversion deformation. 、 The thickness of the stepped portion is greater than the thickness of the bent portion, and when the discharge port is biased toward the housing portion, the stepped portion does not bend, and only the bent portion bends. It is an inverted tube container. [Effects of the Invention]

[0007] According to the present invention, the outlet of the tube in the inverted state can be easily pulled out. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing the configuration of the inverted tube container according to the first embodiment. [Figure 2] This is a partially enlarged view of the inverted tube container according to the first embodiment. [Figure 3] This is a partially enlarged cross-sectional view of an inverted tube container according to the first embodiment. [Figure 4] This is a partially enlarged cross-sectional view showing the inverted state of the inverted tube container according to the first embodiment. [Figure 5] This is a partially enlarged cross-sectional view showing the inverted tube container according to the first embodiment in a planar mounting state. [Figure 6] This figure illustrates a method for manufacturing an inverted tube container according to the first embodiment. [Figure 7] This figure shows the configuration of the inverted tube container according to the second embodiment. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described in detail below with reference to the drawings. However, the components described in the following embodiments are merely illustrative and are not intended to limit the technical scope of the present invention to them alone.

[0010] [First Embodiment] The inverted tube container 100 as the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a perspective view showing the external shape of the inverted tube container 100 before and after inversion. FIG. 2 is a front view showing the external shape of the inverted tube container 100 before inversion. FIG. 3 is a cross-sectional view showing the cross-sectional shape of the inverted tube container 100 before inversion. FIG. 4 is a cross-sectional view showing the cross-sectional shape of the inverted tube container 100 after inversion.

[0011] As shown in FIGS. 1 to 4, the inverted tube container 100 is a container in which a housing portion 101 and a head portion 102 are coupled. Further, the inverted tube container 100 may include a separately formed cap 103.

[0012] The housing portion 101 is a cylindrical member with one end 111 sealed, and houses contents such as gel, cream, or facial wash.

[0013] The head portion 102 is connected to the other end 112 of the housing portion 101 and has a discharge port 121 for the contents. FIGS. 1 to 4 show a state in which a cap 103 is attached to the discharge port 121.

[0014] The head portion 102 includes a tapered portion 122 that protrudes toward the discharge port 121 and gradually decreases in diameter, a shoulder portion 123 that connects the tapered portion 122 and the housing portion 101, and a neck portion 124 that connects the tapered portion 122 and the discharge port 121.

[0015] The shoulder portion 123 and the neck portion 124 are bendable by biasing the discharge port 121 in the direction of the housing portion 101, and the rounded conical-shaped tapered portion 122 is reversely deformed into a mortar shape inside the housing portion 101. In the inverted tube container 100 that has been reversely deformed, by pulling out the discharge port 121 (or the cap 103) outside the housing portion 101 while having a stepped portion 125, it is deformed from the inverted state to the normal state.

[0016] The shoulder portion 123 includes a stepped portion 125 formed to be smaller in diameter than the housing portion 101 and a bent portion 126 that bends during inversion deformation. The stepped portion 125 is formed by including a substantially cylindrical portion that extends substantially cylindrically in the direction from the housing portion 101 toward the discharge port 121 and an inclined portion that extends from the substantially cylindrical portion toward the housing portion 101. The stepped portion 125 is formed to be thicker than the housing portion 101, the tapered portion 122, and the bent portion 126 which is the connection portion between them. As a result, when the discharge port 121 is biased toward the housing portion 101, the stepped portion 125 does not bend, and only the bent portion 126 bends. For example, while the thickness of the housing portion 101 and the tapered portion 122 is about 0.5 mm, it is preferable that the maximum thickness of the stepped portion 125 be 2 mm to 3 mm. In other words, it is preferable that the thickness of the stepped portion 125 is formed to be at least twice the thickness of the tapered portion 122.

[0017] As shown in Figure 5, when the inverted tube container 100 is placed on a flat surface 501 with the head portion 102 facing downwards, the stepped portion 125, which is formed to be smaller in diameter than the housing portion 101, contacts the flat surface 501 and supports the inverted tube container 100. At this time, because the stepped portion 125 is formed to be thick, it has excellent stability, and heat from the flat surface 501 is less likely to be transferred to the contents, thereby suppressing deterioration of the contents.

[0018] As described above, because the inverted tube container 100 is provided with a stepped portion 125, it is possible to easily deform it from the inverted state to the normal state, for example, even if the container is wet and slippery, or if the fingernails are long.

[0019] Figure 6 is a diagram illustrating the manufacturing method of the inverted tube container 100. First, the core mold 601 is inserted into the pre-formed sleeve 602.

[0020] Next, the cavity mold 603 is combined with the core mold 601 to which the sleeve 602 is attached. The cavity molds 604 and 605 are then set into the cavity mold 603 in order.

[0021] Furthermore, cavity molds 606, 607, and 608 are set into cavity mold 603 in order.

[0022] Finally, when the molten resin 609 is poured through the sprue 610, the resin flows through the runner 611 and gate 612 into the product section 613. As the molten resin flows through the product section 613 and reaches the end of the sleeve 602, the heat of the resin melts the end of the sleeve 602, and immediately afterward the resin cools and solidifies, forming the inverted tube container 100, which includes the housing section 101 (sleeve 602) and the head section 102.

[0023] In this embodiment, the housing section 101 has a circular cross-section, but the present invention is not limited to this, and the cross-section may be an ellipse, triangle, quadrilateral, hexagon, or other polygon.

[0024] According to this embodiment, deformation into an inverted state can be easily performed. Furthermore, the inverted tube container can be stored stably, as it is less susceptible to the effects of the temperature of the mounting surface.

[0025] [Second Embodiment] Next, the inverted tube container 700 according to the second embodiment of the present invention will be described with reference to Figure 7. Figure 7 is a diagram illustrating the configuration of the inverted tube container 700 according to this embodiment.

[0026] The shoulder portion 123 is equipped with multiple stepped portions 701 and 702 that are formed to gradually decrease in diameter from the housing portion 101. By providing multiple stepped portions in this way, the inverted tube container 700 can be firmly held even if the container is wet and slippery or if the fingernails are long, and the deformation from the inverted state to the normal state can be made very easy.

[0027] [Other embodiments] Although the present invention has been described above with reference to embodiments, the present invention is not limited to the above embodiments. Various modifications to the structure and details of the present invention can be made, as can be understood by those skilled in the art within the technical scope of the present invention. Furthermore, any system or apparatus that combines the separate features included in each embodiment is also within the technical scope of the present invention.

Claims

1. A storage section that seals one end and contains the contents, A head portion connected to the other end of the storage portion and equipped with a discharge port for the contents, Equipped with, The head portion is, A tapered portion that protrudes toward the aforementioned outlet and gradually decreases in diameter, A shoulder portion connecting the tapered portion and the housing portion, A neck portion connecting the tapered portion and the discharge port, Includes, The shoulder portion and the neck portion are bendable by biasing the outlet toward the housing portion, and the tapered portion is an inverted tube container that deforms into a mortar shape inside the housing portion, The shoulder portion comprises a plurality of stepped portions formed to have a smaller diameter than the housing portion, and a bent portion that bends during inversion deformation. The thickness of the stepped portion is greater than the thickness of the bent portion, and when the discharge port is biased toward the housing portion, the stepped portion does not bend, and only the bent portion bends, in this inverted tube container.

2. The inverted tube container according to claim 1 or 2, wherein when the inverted and deformed inverted tube container is placed on a flat surface with the head portion facing downwards, the stepped portion, which is formed to be smaller in diameter than the housing portion, contacts the flat surface and supports the inverted tube container.

3. The inverted tube container according to claim 1 or 2, wherein the maximum thickness of the stepped portion is 2 mm to 3 mm.

4. The inverted tube container according to claim 1 or 2, wherein the inverted tube, while holding the stepped portion, is deformed back to a normal state by pulling the outlet out to the outside of the housing portion.

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