Rod-like cosmetic delivery container

Abstract

To provide a rod-like cosmetic delivery container which prevents damages to a rod-like cosmetic such as falling, break and deformation caused by an impact or a vibration received in falling of the rod-like cosmetic container, retains airtightness in a cap and improves operational feeling when delivering the rod-like cosmetic.SOLUTION: In a rod-like cosmetic delivery mechanism 8, a spring 13 is integrally held in a space 12 formed by a rear end edge of a core cylinder 5, an inner peripheral surface of a fitting cylinder 6, an outer peripheral surface of a screw piece 9 capable of advancing and retreating, and a flange part 9b of the outer peripheral surface of the screw piece 9, and an O-ring 14 fitted to the outer peripheral surface of the screw piece 9 and adhering to the rear inner peripheral surface of the core cylinder 5 generates friction force while elastically adhering, so that an impact or a vibration in falling is cushioned by expansion of the spring and friction of the O-ring so as to prevent damages to a rod-like cosmetic such as falling, break and deformation, a core cylinder rear side is sealed to retain airtightness in the cap, and it is possible to reduce the number of components, reduce manufacture costs, and improve efficiency of manufacturing work while improving operational feeling at delivery operation.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a stick-shaped cosmetic dispensing container that enables a stick-shaped cosmetic such as an eyebrow, eyeliner, lip liner or lipstick (hereinafter referred to as "stick-shaped cosmetic") to be freely extended and retracted by a stick-shaped cosmetic dispensing mechanism provided therein. [Background technology]

[0002] Conventionally, in a stick type cosmetic dispensing container in which a stick type cosmetic is freely dispensed by the above-mentioned stick type cosmetic dispensing mechanism, if the container is dropped due to carelessness, for example, the impact or vibration caused by the drop can cause the stick type cosmetic stored inside the container to be damaged, such as falling off, breaking or deforming.

[0003] In order to prevent damage to the stick type cosmetic material caused by the impact or vibration when dropped, a stick type cosmetic material dispensing mechanism provided in the main body of the stick type cosmetic material dispensing container has been proposed that can move forward (i.e., in the "direction in which the stick type cosmetic material protrudes"; the same applies below) or backward (i.e., in the "direction in which the stick type cosmetic material sinks"; the same applies below) to cushion the damage (see Patent Document 1). That is, the stick type cosmetic material dispensing mechanism described above holds an O-ring that is in close contact with the inner peripheral surface of the fitting tube on the outer peripheral surface of the screw, within a space formed by the inner peripheral surface of the fitting tube that forms the stick type cosmetic material dispensing mechanism and the outer peripheral surface of the screw that can move forward or backward, together with its flange and flange, and also causes a compression spring to expand and contract in conjunction with the screw, in front of the O-ring, on the outer peripheral surface of the screw, via the flange.

[0004] Therefore, when the stick type cosmetic material dispensing container is dropped and subjected to shock or vibration, the screw of the stick type cosmetic material dispensing mechanism moves forward together with the O-ring while compressing the compression spring. At this time, the O-ring is fixed to either the inner surface of the fitting cylinder or the outer surface of the screw, and is constantly in close contact with the other, generating frictional force, so that the screw moves forward while resisting the frictional force generated by the O-ring. As a result, the forward movement speed of the screw of the stick-shaped cosmetic material dispensing mechanism gradually decreases, thereby reliably absorbing the impact or vibration when dropped and reliably preventing damage to the stick-shaped cosmetic material such as falling off, breakage, and deformation.

[0005] Furthermore, after the forward movement of the screw in the stick-shaped cosmetic material dispensing mechanism reaches its limit, the screw retracts so that the compression spring compressed within the fitting cylinder returns to its original length. At this time, the O-ring is in close contact with either the inner surface of the fitting cylinder or the outer surface of the screw, generating friction against the other, so the screw moves back against the friction force generated by the O-ring. As a result, the speed at which the screw of the stick-shaped cosmetic material dispensing mechanism retracts gradually decreases, thereby reliably absorbing the impact or vibration when dropped and reliably preventing damage to the stick-shaped cosmetic material such as falling off, breakage, and deformation.

[0006] Incidentally, in the stick type cosmetic material dispensing mechanism provided inside the stick type cosmetic material dispensing container, minute gaps are required between each of the components that make up the stick type cosmetic material dispensing mechanism so that the screw that constitutes the stick type cosmetic material dispensing mechanism can move forward or backward accompanied by the friction of the O-ring and the expansion and contraction of the compression spring to cushion the impact or vibration when dropped. As a result, the airtightness within the stick-shaped cosmetic material dispensing container body decreases and volatile components become more likely to evaporate from the stick-shaped cosmetic material, so another O-ring is installed within the stick-shaped cosmetic material dispensing container body; for example, in the above-mentioned stick-shaped cosmetic material dispensing container, an O-ring is installed to fill the space formed by the rear end of the core tube, the inner surface of the fitting tube, and the outer surface of the push rod, to maintain airtightness within the cap, particularly within the space within the core tube which holds the stick-shaped cosmetic material so that it can be freely withdrawn and retracted.

[0007] However, by installing multiple O-rings inside the stick type cosmetic material dispensing container body, the structure inside the stick type cosmetic material dispensing container body becomes complex, which not only increases manufacturing costs but also reduces the work efficiency in the manufacturing process.

[0008] Furthermore, among the multiple O-rings, the O-rings that are loaded so as to fill the space formed by the rear end of the core tube, the inner surface of the fitting tube, and the outer surface of the push rod also generate a large frictional force by coming into close contact with each other between the fitting tube and the push rod, which may make the operation of extending and retracting the stick-shaped cosmetic heavy and reduce the feel of the operation. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Patent No. 7168843 Summary of the Invention [Problem to be solved by the invention]

[0010] Therefore, the present invention aims to cushion the impact and vibration generated when the stick-shaped cosmetic material dispensing container is dropped, thereby preventing damage to the stick-shaped cosmetic material such as falling off, breakage, and deformation, maintain airtightness within the stick-shaped cosmetic material dispensing container, and improve the operability when dispensing the stick-shaped cosmetic material, while reducing the number of parts that make up the stick-shaped cosmetic material dispensing container, thereby improving manufacturing costs and work efficiency in the manufacturing process of the stick-shaped cosmetic material dispensing container. [Means for solving the problem]

[0011] The first feature is, The container comprises a cap and a stick-shaped cosmetic material dispensing container body to which the cap can be attached and detached, The body of the container for dispensing a stick-shaped cosmetic material is an integral body of an outer cylinder, a core cylinder having an opening at the tip, and a fitting cylinder, The core tube and the fitting tube rotate relative to each other, and the outer tube and the fitting tube rotate together. In the space formed by the core tube and the fitting tube, a screw threaded on the inner circumferential surface of the fitting tube is held so as to rotate integrally with the fitting tube and to be able to move forward or backward, and a push rod having a male screw threaded on its inner circumferential surface and holding a rod-shaped cosmetic material at the front and an inner circumferential surface of the push rod holding a rod-shaped cosmetic material at the front and an outer circumferential surface of the push rod at the rear are screwed together, and a rod-shaped cosmetic material feeding mechanism is provided in which the screw threaded on the inner circumferential surface of the fitting tube is rotated by the rotation of the outer tube, causing the rod-shaped cosmetic material held at the front of the push rod to freely protrude and retract from the tip of the core tube, In this stick-shaped cosmetic dispensing mechanism, a spring is installed within the space formed by the rear end edge of the core tube, the inner surface of the fitting tube, the outer surface of the screw head and a flange protruding from the outer surface of the screw head, and an elastic friction material is attached between the outer surface of the screw head and the rear inner surface of the core tube, being fixed to one side and in close contact with the other.

[0012] Therefore, for example, the elastic friction material attached and fixed to the outer peripheral surface of the screw in the stick-shaped cosmetic material dispensing mechanism is in close contact with the rear inner peripheral surface of the core tube, generating frictional force, so that even if the stick-shaped cosmetic material dispensing container is dropped and subjected to impact or vibration, the screw of the stick-shaped cosmetic material dispensing mechanism will advance or retreat while gradually decelerating due to the compression or expansion of the spring held integrally with the screw. As a result, the mechanism for dispensing the stick-shaped cosmetic material can reliably absorb the impact or vibration caused when the material is dropped, preventing damage to the stick-shaped cosmetic material, such as falling off, breakage, and deformation.

[0013] Furthermore, since the elastic friction material attached to the outer peripheral surface of the screw head is in close contact with the inner peripheral surface of the core tube, the space within the cap, particularly the space within the core tube which stores the rod-shaped cosmetic material so that it can be freely inserted and removed, is simultaneously sealed, thereby preventing the evaporation of volatile components contained in the rod-shaped cosmetic material within the core tube.

[0014] Furthermore, since the only thing that generates frictional force by being in close contact between the outer peripheral surface of the screw that constitutes the stick-shaped cosmetic material-dispensing mechanism and the rear inner peripheral surface of the core tube is the elastic friction material attached to the outer peripheral surface of the screw, the operating force required to operate the outer tube that causes the stick-shaped cosmetic material to extend and retract can be reduced, improving the operating feel.

[0015] The elastic friction material attached to the outer peripheral surface of the screw so as to be in close contact with the rear inner peripheral surface of the core tube that constitutes the cap and the main body of the stick-shaped cosmetic material dispensing container is required to have excellent friction resistance, so a suitable material would be NBR (acrylonitrile butadiene rubber) or the like, and specific examples of the material that can be considered include an O-ring or a packing.

[0016] In addition, since the spring which is held integrally on the outer peripheral surface of the screw head needs to be able to be compressed or expanded in response to the input of shock or vibration when dropped, it may be another cushioning part which is itself capable of being compressed and expanded.

[0017] Based on the first characteristic, the second characteristic is as follows: Within the cap, an inner plug is fixedly held in close contact with the peripheral surface of the tip of the core tube so as to seal the tip of the core tube.

[0018] Therefore, when the cap is attached, the inner stopper, which is fixed in the cap together with the elastic friction material, is tightly attached to the peripheral surface of the tip of the core tube, so that the space in which the rod-shaped cosmetic material stored in the core tube is exposed to air is limited to only the space inside the core tube and becomes small, thereby reliably preventing the evaporation of volatile components contained in the rod-shaped cosmetic material. Effect of the Invention

[0019] The present invention uses an elastic friction material that is fixed to one side of the outer circumferential surface of a screw head and the inner circumferential surface of the rear of a core tube in a stick type cosmetic dispensing mechanism that allows the stick type cosmetic to be freely advanced and retracted, and that is in close contact with the other side. This prevents damage to the stick type cosmetic such as falling off, breakage, deformation, etc. that occurs when a spring expands and contracts together with the elastic friction material. The elastic friction material maintains the airtightness of the stick type cosmetic dispensing container, particularly the core tube, and reduces the operating force required when dispensing the stick type cosmetic. This has the excellent effect of reducing the number of parts that make up the stick type cosmetic dispensing container, thereby reducing manufacturing costs and improving work efficiency in manufacturing.

[0020] Furthermore, when the cap is attached, the inner stopper fits tightly against the peripheral surface of the tip of the core tube, sealing the inside of the core tube, so that the space in which the rod-shaped cosmetic material, which can freely move in and out of the core tube, is exposed to the air is limited to the inside of the core tube and is small, thereby having the excellent effect of suppressing the evaporation of volatile components contained in the rod-shaped cosmetic material and preventing deterioration in the quality of the rod-shaped cosmetic material. [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is an overall vertical cross-sectional view of a container for dispensing a stick-shaped cosmetic material according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a vertical cross-sectional view showing the operating state of the stick type cosmetic material-dispensing mechanism when the stick type cosmetic material-dispensing container according to the first embodiment of the present invention is dropped. [Diagram 3] FIG. 3 is an overall vertical cross-sectional view of a stick-shaped cosmetic material dispensing container according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] In the rod-shaped cosmetic dispensing mechanism, which is provided in the space formed by the core tube and fitting tube that constitute the main body of a container for dispensing rod-shaped cosmetic material, a spring is installed inside the space formed by the rear end edge of the core tube, the inner surface of the fitting tube, the outer surface of the screw head and a flange protruding from the outer surface of the screw head, and an elastic friction material is attached between the outer surface of the screw head and the rear inner surface of the core tube, being fixed to one side and in close contact with the other.

[0023] Furthermore, an inner plug that comes into close contact with the peripheral surface of the tip of the core tube when the cap is attached is fixedly held within the cap. EXAMPLES

[0024] Shown in Figures 1 and 2 is a stick-shaped cosmetic material dispensing container 1 which is Example 1 of the present invention. The stick-shaped cosmetic material dispensing container 1 is composed of a cap 2 and a stick-shaped cosmetic material dispensing container body 3 to which the cap 2 can be attached and detached. The stick-shaped cosmetic material dispensing container body 3 is an integral unit of an outer tube 4, a core tube 5 having an opening 5a at the tip, and a fitting tube 6, with the core tube 5 and the fitting tube 6 rotating relative to one another, and the outer tube 4 and the fitting tube 6 rotating together.

[0025] Furthermore, within the space 7 formed by the core tube 5 and the fitting tube 6, a screw 9 which is held so as to rotate integrally on the inner surface of the fitting tube 6 and be able to move forward or backward, and has a female threaded portion 9a screwed onto its inner surface, is screwed together with a push rod 10 which holds a stick-shaped cosmetic material 11 at the front and has a male threaded portion 10a screwed onto its outer surface at the rear, and which can be screwed into the female threaded portion 9a. To this end, the device is provided with a rod-shaped cosmetic material delivery mechanism 8 that allows a screw head 9 fixed to the fitting tube 6 to rotate in the same direction as the outer tube 4 rotates, thereby allowing a rod-shaped cosmetic material 11 held in front of the push rod 10 that screws into each other to freely move in and out of an opening 5a at the tip of the core tube 5.

[0026] In addition, in the stick-shaped cosmetic material dispensing mechanism 8, a spring 13 is fitted inside a space 12 defined by the rear end edge 5b of the core tube, the inner surface of the fitting tube 6, the outer surface of the screw 9 and a flange 9b protruding from the outer surface of the screw 9, and an O-ring 14, which is an example of an elastic friction material having elasticity that fits closely against the rear inner surface of the core tube 5, is attached to the front outer surface of the screw 9.

[0027] The stick type cosmetic material-dispensing mechanism 8 housed within the stick type cosmetic material-dispensing container body 3 that constitutes the stick type cosmetic material-dispensing container 1 has the above-mentioned configuration, so that the stick type cosmetic material 11 is applied as follows. That is, after removing the cap 2 from the stick type cosmetic material dispensing container body 3 that constitutes the stick type cosmetic material dispensing container 1, the outer tube 4 that constitutes the stick type cosmetic material dispensing container 1 is rotated while gripping the core tube 5. As a result, the push rod 10, which has a male thread portion 10a formed on its outer surface that screws into the female thread portion 9a of the screw 9 that rotates together with the fitting tube 6 that rotates integrally with the outer tube 4, moves forward, causing the stick-shaped cosmetic material 11 held in front of the push rod 10 to protrude from the opening 5a at the tip of the core tube 5. Therefore, application is performed using this protruding stick-shaped cosmetic material 11.

[0028] Furthermore, after application of the stick-shaped cosmetic material 11 has been completed, by rotating the outer tube 4 constituting the main body 3 of the container for dispensing stick-shaped cosmetic material in the opposite direction while gripping the core tube 5, the screw head 9 rotates in the same direction via the fitting tube 6 which rotates integrally with the outer tube 4. As a result, the push rod 10, which forms the male screw portion 10a that screws into the female screw portion 9a of the rotating screw 9, retreats toward the rear, so that the stick-shaped cosmetic material 11 held in front of the push rod 10 sinks into the interior of the core tube 5 through the opening 5a at the tip of the core tube 5.

[0029] If the stick-shaped cosmetic material dispensing container 1 is inadvertently dropped, the following will occur. In other words, if the stick type cosmetic material dispensing container 1 is inadvertently dropped, the impact or vibration caused by the fall will cause the screw 9 of the stick type cosmetic material dispensing mechanism 8, together with the push rod 10, to move forward so as to compress the spring 13 while the O-ring 14 attached to the outer peripheral surface of the screw 9 comes into close contact with the rear inner peripheral surface of the core tube 5.

[0030] Here, the O-ring 14 is in close contact with the rear inner peripheral surface of the core tube 5, generating frictional force while the spring 13 held on the outer peripheral surface of the screw 9 is compressed, so that the screw 9 gradually advances while absorbing the impact or vibration when dropped, thereby reliably preventing damage to the stick-shaped cosmetic material 11 such as falling off, breakage, deformation, etc.

[0031] After the forward movement of the screw 9 reaches its limit, the screw 9 moves backward so that the compressed spring 13 expands to its original length. However, since the O-ring 14 fixed to the screw 9 is constantly in close contact with the rear inner peripheral surface of the core tube 5 and generates friction, the spring 13 gradually expands and the screw 9 gradually retracts. As a result, the shock or vibration caused when dropped is absorbed, and damage to the stick-shaped cosmetic material 11, such as falling off, breakage, deformation, etc., can be reliably prevented.

[0032] Furthermore, since the O-ring 14 attached to the outer peripheral surface of the screw head 9 is in close contact with the rear inner peripheral surface of the core tube 5, the space within the cap 2, including the space within the core tube 5, is adequately sealed, and the airtightness within is maintained. As a result, the space in which the stick-type cosmetic material 11 is exposed to air is limited, so that evaporation of the volatile components contained in the stick-type cosmetic material 11 is suppressed, and deterioration of the quality of the stick-type cosmetic material 11 can be prevented.

[0033] In addition, since the O-ring 14 attached to the outer peripheral surface of the screw 9 is in close contact with the rear inner peripheral surface of the core tube 5, frictional force is generated between the screw 9 and the core tube 5. At this time, the screw 9 rotates integrally with the fitting tube 6, and the fitting tube 6 rotates integrally with the outer tube 4, so that resistance during the operation of advancing the outer tube 4 which causes the stick-shaped cosmetic material 11 to appear and disappear is reduced, improving the operational feel during the operation of advancing the stick-shaped cosmetic material 11.

[0034] Therefore, the O-ring 14 attached to the outer peripheral surface of the screw head 9 alone reliably absorbs the impact or vibration when dropped, reliably preventing damage to the stick-shaped cosmetic material 11 such as falling off, breakage, and deformation, while maintaining airtightness within the cap 2 and improving the operability when dispensing the stick-shaped cosmetic material 11. This makes it possible to reduce the number of parts that make up the stick-shaped cosmetic material dispensing container 1, thereby reducing manufacturing costs and improving work efficiency in the manufacturing process. EXAMPLES

[0035] Shown in FIG. 3 is a stick type cosmetic material dispensing container 1' which is Example 2 of the present invention. Similar to Example 1, the stick type cosmetic material dispensing container 1' is composed of a cap 2' and a stick type cosmetic material dispensing container body 3 to which the cap 2' is detachable, and the structure of each component part is also substantially the same. However, the stick-shaped cosmetic material dispensing container 1' of Example 2 differs from the stick-shaped cosmetic material dispensing container 1 of Example 1 in that an inner stopper 15 is fixedly attached within the cap 2' in such a way that it is in close contact with the peripheral surface 5c of the tip of the core tube 5 so as to seal the opening 5a at the tip of the core tube 5.

[0036] As a result, the stick type cosmetic material dispensing container 1' of the above-mentioned Example 2 has the same configuration as the stick type cosmetic material dispensing container 1 of the above-mentioned Example 1, and therefore can achieve the same effects as those of Example 1. In other words, the O-ring 14 attached to the outer peripheral surface of the screw head 9 is in close contact with the rear inner peripheral surface of the core tube 5, generating a frictional force, thereby reliably absorbing the impact or vibration when dropped, reliably preventing damage to the stick-shaped cosmetic material 11 such as falling off, breakage, deformation, etc., while maintaining airtightness within the core tube 5 and further reducing the operating force required when dispensing the cosmetic material, improving the feel of operation.

[0037] Furthermore, particularly in the case of the stick-shaped cosmetic material dispensing container 1' of Example 2, the inner stopper 15 fixed in the cap 2' is in close contact with the tip peripheral surface 5c of the core tube 5, so that the space in which the stick-shaped cosmetic material 11 is exposed to air is limited to the space within the core tube 5 that contains the stick-shaped cosmetic material 11 and becomes smaller, thereby further suppressing the evaporation of the volatile components contained in the stick-shaped cosmetic material 11 and more reliably preventing deterioration in the quality of the stick-shaped cosmetic material 11. [Explanation of symbols]

[0038] 1, 1' Stick-shaped cosmetic dispenser 2, 2' Cap 3. Stick-shaped cosmetic dispenser body 4 Outer cylinder 5 core tube 5a opening 5b Rear edge of core tube 5c Tip circumference 6. Fitting tube 7 space 8. Stick-shaped cosmetic material dispensing mechanism 9 Screw head 9a Female thread 9b Tsubabe 10 push rod 10a Male thread 11 Stick-type cosmetics 12 Space 13. Spring 14 O-ring 15 Inner stopper

Claims

1. The container comprises a cap and a stick-shaped cosmetic material dispensing container body to which the cap can be attached and detached, The body of the container for dispensing a stick-shaped cosmetic material is an integral body of an outer cylinder, a core cylinder having an opening at the tip, and a fitting cylinder, The core tube and the fitting tube rotate relative to each other, and the outer tube and the fitting tube rotate together. In the space formed by the core tube and the fitting tube, a screw threaded on the inner circumferential surface of the fitting tube is held so as to rotate integrally with the fitting tube and to be able to move forward or backward, and a push rod having a male screw threaded on its inner circumferential surface and holding a rod-shaped cosmetic material at the front and an inner circumferential surface of the push rod holding a rod-shaped cosmetic material at the front and an outer circumferential surface of the push rod at the rear are screwed together, and a rod-shaped cosmetic material feeding mechanism is provided in which the screw threaded on the inner circumferential surface of the fitting tube is rotated by the rotation of the outer tube, causing the rod-shaped cosmetic material held at the front of the push rod to freely protrude and retract from the tip of the core tube, In the stick-shaped cosmetic dispensing mechanism, a spring is installed inside a space defined by the rear end edge of the core tube, the inner peripheral surface of the fitting tube, the outer peripheral surface of the screw, and a flange protruding from the outer peripheral surface of the screw, and an elastic friction material is attached between the outer peripheral surface of the screw and the rear inner peripheral surface of the core tube, and is fixed to one side and in close contact with the other side. A stick-shaped cosmetic material dispensing container characterized by the above-mentioned.

2. A plug is fixed in the cap so as to be in close contact with the peripheral surface of the tip of the core tube and to seal the tip of the core tube.

2. The stick-shaped cosmetic material dispensing container according to claim 1.

Images