Stick-shaped cosmetic dispenser

Abstract

To provide a configuration capable of thinning the thickness of a container relative to a back-filling bar-like cosmetics.SOLUTION: A bar-like cosmetic delivering container comprises: a holding tube including an engagement projection projecting to a lower-end outer wall of a leg tube suspending from a holding part and a screw projection to a lower-end inner wall; a sleeve including the holding tube, and a guide groove with which the engagement projection is engaged, perforated in a lower sidewall in an axial direction; a screw rod including a screw part freely rotationally connecting with the sleeve, inserted into the leg tube and having a male screw threadedly engaged with the screw projection part on the outer wall, and a base part projecting from the sleeve rear end; and a stand tube in which the sleeve and the screw rod lower portion are inserted and that locks the base part. A holding-part upper side of the sleeve is defined as a filling space, an introduction tube being coaxial with the leg tube and having an upper-end opening on a bottom of the holding part is suspended, a through-hole for inserting the introduction tube is vertically perforated in the screw rod to penetrate therethrough, and a filling hole from which the lower-end opening of the introduction tube can be seen is perforated in the bottom of the stand tube. Cosmetics from the filling port through the introduction tube fill the filling space.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a container for dispensing stick-shaped cosmetics using a rear-filling method in which heated and melted cosmetics are directly filled into the container from the rear end thereof and then cooled and solidified within the container, and relates to a container for dispensing stick-shaped cosmetics configured so that the thickness of the container can be made thinner than the thickness of the stick-shaped cosmetics contained therein. [Background technology]

[0002] Conventionally, as seen in Patent Document 1, a container for dispensing a stick-shaped cosmetic has been known whose main components are a retaining tube (cylindrical inner plate 9) having a retaining portion (plate 10) for holding a stick-shaped cosmetic, an engaging convex portion (projection 11) protruding from the outer wall at its lower end, and a screwing convex portion (projection 12) protruding from the inner wall at its lower end, a sleeve (cylindrical main body 5) which accommodates the stick-shaped cosmetic and the retaining tube so that they can slide freely inside, and which has a guide groove (slit 7) drilled long in the axial direction into the lower side wall so that the engaging convex portion of the outer wall of the retaining tube engages with and guides the retaining tube so that it cannot rotate, and a threaded rod (threaded rod 13) which is inserted from the rear end of the retaining tube and the sleeve, has a male screw (thread groove 14) screwed into its outer periphery to screw into the screwing convex portion (projection 12) on the inner wall of the retaining tube to slide the retaining tube, and has a base (fitting portion 15) at its lower end which protrudes from the lower end of the sleeve.

[0003] In this type of stick-shaped cosmetic dispenser, the mechanism for sliding the retaining tube up and down is located below the portion of the retaining tube that holds the stick-shaped cosmetic, so while the overall length of the container is long, the outer diameter of the container can be made thin. Also, since the inside of the sleeve, above the portion of the retaining tube that holds the stick-shaped cosmetic, is empty, it is possible to use a top-filling method in which the heated and melted cosmetic is directly filled from above the sleeve and cooled and solidified inside the sleeve. This top-filling method of cosmetic has the advantage that it does not require a mold to form the cosmetic into a stick shape, compared to the lipstick method in which the cosmetic is formed into a stick shape beforehand and then set in the container, but since the cosmetic needs to be completely rubbed off at the top end of the sleeve, it is not possible to apply a decorative design to the tip of the stick-shaped cosmetic.

[0004] Therefore, as seen in Patent Document 2, instead of providing a bottom on the holding tube (cosmetic holding part 1), a configuration has been proposed in which multiple claws (claws 12) are provided on the inside surface, and a through hole (hole 32) is provided vertically on a screw rod (screw rod member 3) that is part of the feeding mechanism, so that the filling part of the stick-shaped cosmetic can be accessed from the rear of the container through the through hole. In this configuration, a rear-filling method is possible in which the heated and melted cosmetic is directly filled into the container from the rear end of the container and cooled and solidified inside the container. In this rear-filling method, since the tip of the sleeve becomes the bottom of the filling, it is possible to apply an aesthetic design to the tip of the stick-shaped cosmetic. In addition, since the cosmetic is filled from the rear end direction, there is no need to wear off the cosmetic. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Actual publication Showa 56-28210 [Patent Document 2] Patent Publication No. 2009-226004 Summary of the Invention [Problem to be solved by the invention]

[0006] When the cosmetic material was filled into a liquid state by heating and melting it, shrinkage always occurred during the process of solidifying it into a stick-shaped cosmetic material. Therefore, it was necessary to fill the cosmetic material in an amount that took shrinkage into account. However, in the case of the configuration of Patent Document 2, the screw rod that does not slide up and down is located directly below the holding part of the stick-shaped cosmetic material, so the overall length of the container is further extended in order to secure a space that can be filled with an amount that takes shrinkage into account. [Means for solving the problem]

[0007] The retaining tube 2 has an engaging protrusion 221 protruding from the outer wall at the lower end of the leg tube 22 that hangs down from the retaining part 21 that retains the stick-shaped cosmetic material 1, and a screw-fitting protrusion 222 protruding from the inner wall at the lower end. The sleeve 4 that houses the retaining tube 2 so that it can slide up and down has a guide groove 41 drilled long in the axial direction in the lower side wall that engages with the engaging protrusion 221 of the retaining tube 2 to regulate the rotation and vertical sliding range of the retaining tube 2. The threaded rod 3 is rotatably connected to the sleeve 4, and is inserted into the leg tube 22 of the retaining tube 2 so as to be rotatable and slidable up and down, and is connected to the threaded part 31 having a male screw 311 screwed into the outer wall that screws into the screw-fitting protrusion 222, and the sleeve 4. lower end The base 32 protrudes from the sleeve 4. The lower part of the sleeve 4 and the base 32 of the threaded rod 3 are inserted into the hakama tube 6, and the base 32 is fixed in place.

[0008] The present invention comprises the above-mentioned retaining tube 2, threaded rod 3, sleeve 4, and hakama tube 6, in which the space above the retaining portion 21 of the retaining tube 2 of the sleeve 4 is a filling space 43, an introduction tube 23 having an upper end opening 231 at the bottom surface 211 of the retaining portion is suspended coaxially within the leg tube 22 of the retaining tube 2, a through hole 33 into which the introduction tube 23 is inserted is drilled vertically through the threaded rod 3, and a filling port 61 is drilled in the bottom surface of the hakama tube 6 through which the lower end opening 232 of the introduction tube 23 of the retaining tube 2 is visible. As a result, a heated and melted cosmetic can be filled into the filling space 43 in the sleeve 4 from the filling port 61 of the hakama tube 6 through the introduction tube 23 of the retaining tube 2.

[0009] The inner diameter of the introduction pipe 23 of the holding cylinder 2 and the diameter of the filling port 61 of the hakama cylinder 6 are φ7.0 mm or more, allowing the filling nozzle 11 to be inserted. Effect of the Invention

[0010] As described above, in the present invention, the mechanism for sliding the stick-shaped cosmetic material 1 up and down comprises the retaining tube 2, threaded rod 3 and sleeve 4, and the threaded portion 31 provided with the male thread 311 for advancing the retaining tube 2 is contained within the leg tube 22 of the retaining tube 2, allowing the thickness of the container to be made thinner relative to the thickness of the stick-shaped cosmetic material 1.

[0011] The upper part of the holding part 21 of the holding tube 2 of the sleeve 4 is the filling space 43. Furthermore, a through hole 33 is drilled vertically through the threaded rod 3, an introduction pipe 23 opening at the bottom surface 211 of the holding part is provided in the holding tube 2, and the introduction pipe 23 is inserted into the through hole 33 to provide a filling port 61 at the bottom surface of the hakama tube 6 through which the lower opening 232 of the introduction pipe 23 passing through the through hole 33 can be seen. This allows access to the filling space 43 in the sleeve 4 from the outside through the introduction pipe 23 from the filling port 61, and rear filling can be performed by inserting the filling nozzle 11 through the filling port 61 to directly fill the filling space 43 in the sleeve 4 from the rear end of the container with a heated and melted cosmetic material, and then cooling and solidifying the cosmetic material in the filling space 43.

[0012] Moreover, the introduction tube 23 communicates with the filling space 43 inside the sleeve 4. Therefore, an extra amount of cosmetic can be filled into the introduction tube 23 to compensate for the shrinkage that occurs when the cosmetic solidifies, without affecting the stick-shaped cosmetic 1 inside the filling space 43. As a result, it is possible to accommodate shrinkage of the cosmetic without changing the overall length of the container. [Brief description of the drawings]

[0013] [Figure 1] FIG. 2 is a front cross-sectional view of a container for feeding stick-shaped cosmetic material according to an embodiment of the present invention when a stick-shaped cosmetic material is at its lowest position. [Diagram 2] FIG. 2 is a front cross-sectional view of a stick-shaped cosmetic material dispenser according to an embodiment of the present invention when the stick-shaped cosmetic material is at its upper limit. [Diagram 3] FIG. 2 is a front cross-sectional view of a container for feeding a stick-shaped cosmetic material according to an embodiment of the present invention when the cosmetic material is filled therein. [Figure 4] 1 is a partial cross-sectional view showing an exploded view of a main part of a container for dispensing stick-shaped cosmetic material according to an embodiment of the present invention. Example 1

[0014] An embodiment of the present invention will be described with reference to Figures 1 to 4. The container for feeding a stick-shaped cosmetic material of the present invention comprises a holding cylinder 2, a threaded rod 3, a sleeve 4, a cap 5, a hakama cylinder 6 and an inner cylinder 7.

[0015] The upper end of the holding tube 2 is a cup-shaped holding portion 21. A leg tube 22 hangs down from this holding portion 21. An engagement protrusion 221 protrudes from the outer wall of the lower end of the leg tube 22. A female screw-shaped screw-fitting protrusion 222 is screwed into the inner wall of the lower end. A pair of notches 223 are cut out in the axial direction from the lower end at positions shifted 90° left and right from the engagement protrusion 221. The notches 223 divide the screw-fitting protrusion 222, making the lower end of the leg tube 22 deformable. As a result, the screw-fitting protrusion 222 of the leg tube 22 has a shape that cannot be formed without forcibly removing it, but the deformation of the lower end of the leg tube 22 allows it to be forcibly removed without stress. An introduction tube 23, which is coaxial with the leg tube 22, hangs down inside the leg tube 22. A gap 24 is formed between the introduction tube 23 and the leg tube 22. Both ends of this introduction pipe 23 have openings, with an upper end opening 231 opening into the bottom surface 211 of the holding part 21 and a lower end opening 232 opening toward the lower end of the leg tube 22 of the holding tube 2 .

[0016] The retaining tube 2 is inserted into the sleeve 4. A guide groove 41 is drilled in the lower side wall of the sleeve 4, extending in the axial direction. The engaging protrusion 221 of the retaining tube 2 narrows the lower end portion of the leg tube 22 inward and engages with the guide groove 41. The engaging protrusion 221 engages with the guide groove 41, making it impossible for the retaining tube 2 to fall off within the sleeve 4. The guide groove 41 also regulates the rotation of the retaining tube 2 within the sleeve 4 and the range of vertical sliding of the retaining tube 2. That is, the engaging protrusion 221 abuts against the lower end of the guide groove 41, thereby defining the lower limit of the retaining tube 2 shown in FIG. 1. The engaging protrusion 221 abuts against the upper end of the guide groove 41, thereby defining the upper limit of the retaining tube 2 shown in FIG. 2. 1, when the holding tube 2 is at its lowest position, the upper end of the holding portion 21 of the holding tube 2 is located above the upper end of the guide groove 41 of the sleeve 4, and the space inside the sleeve 4 above the holding portion 21 of the holding tube 2 forms a filling space 43 into which molten cosmetic material is filled and cooled to solidify into the stick-shaped cosmetic material 1. A number of anti-slip ribs 212 protrude from the inner peripheral wall of the holding portion 21 of the holding tube 2 to hold the stick-shaped cosmetic material 1 in place.

[0017] A threaded rod 3 is inserted from the lower end of the sleeve 4. The threaded rod 3 is composed of a threaded portion 31 that enters the leg tube 22 of the retaining tube 2 inside the sleeve 4, a connecting portion 34 into which the lower end portion of the sleeve 4 fits, and a base portion 32 that protrudes outward from the lower end of the sleeve 4, with the outer diameter increasing in the order of the threaded portion 31, the connecting portion 34, and the base portion 32, and the lower end of the sleeve 4 abutting against a step portion 35 between the connecting portion 34 and the base portion 32. The threaded rod 3 is also provided with through holes 33 that open at the upper and lower ends, into which the introduction tube 23 of the retaining tube 2 enters, the threaded portion 31 enters the gap 24 between the introduction tube 23 and the leg tube 22, and the lower end opening 232 of the introduction tube 23 is visible from the lower opening of the through hole 33 of the threaded rod 3. Since the threaded portion 31 of the threaded rod 3 is positioned on the back surface of the leg tube 22, the lower end of the leg tube 22 is prevented from deforming inward, and the engagement between the engagement protrusion 221 and the guide groove 41 cannot come off. A male screw 311 is screwed into the outer peripheral wall of this threaded portion 31, with which the screwing protrusion 222 of the retaining tube 2 screws into and drives the retaining tube 2 up and down. An engagement groove 341 is engraved into the outer peripheral wall of the connecting portion 34. An inner peripheral rib 42 is protruded from the outside toward the inner peripheral direction on the inner peripheral wall below the guide groove 41 of the sleeve 4, which engages with the engagement groove 341 to connect the threaded rod 3 and the sleeve 4 rotatably and non-disconnectable.

[0018] The base 32 of the threaded rod 3 and the lower part of the sleeve 4 are inserted into the middle cylinder 7. The lower part of the middle cylinder 7 is a fastening part 71 to which the base 32 of the threaded rod 3 is fastened. The middle cylinder 7 is inserted and fastened into the hakama cylinder 6. As a result, the hakama cylinder 6 fastens the base 32 of the threaded rod 3 via the middle cylinder 7, and the threaded rod 3 is driven by the hakama cylinder 6, and the sleeve 4 is rotatably connected via the threaded rod 3. The upper part of the middle cylinder 7 protrudes from the upper end of the hakama cylinder 6 and forms a fitting part 72 into which the cap 5 is detachably fitted. When the cap 5 is fitted into the fitting part 72, it covers the upper part of the sleeve 4 protruding from the fitting part 72 of the middle cylinder 7. The lower surface of the hakama cylinder 6 is provided with a filling port 61 through which the through hole 33 of the threaded rod 3 can be seen through a bottom hole 73 provided on the bottom surface of the middle cylinder 7.

[0019] The container for dispensing stick type cosmetic material of the present invention is configured as described above. When the sleeve 4 is held and the hakama tube 6 is rotated, the threaded rod 3, whose base part 32 is fastened to the fastening part 71, also rotates. The retaining tube 2, whose rotation is prevented by the engagement protrusion 221 engaging with the guide groove 41 of the sleeve 4, has the threading protrusion 222 threadedly engaged with the male thread 311 of the rotating threaded rod 3, so that the threading action caused by the relative rotation causes the retaining tube 2 to slide up and down, and the stick type cosmetic material 1 appears and disappears from the tip of the sleeve 4.

[0020] Next, the method of filling cosmetics into the stick-shaped cosmetic container of the present invention will be described with reference to FIG. 3. In the stick-shaped cosmetic container, the capsule 12 is fitted to the tip of the sleeve when the holding tube 2 is at its lowest position. The inner surface of the capsule 12 faces the filling space 43 of the sleeve 4, and can be engraved with decorative design to decorate the tip of the solidified stick-shaped cosmetic 1. In this state, the tip of the sleeve 4 is directed downward, and the filling nozzle 11 is inserted into the introduction tube 23 of the holding tube 2 that has entered the through hole 33 of the threaded rod 3 through the filling port 61 of the hakama tube 6. In this state, the tip of the filling nozzle 11 faces the filling space 43, and the cosmetic that has been heated and melted is filled from the filling nozzle 11 toward the filling space 43. This filling is continued until the filling space 43 is filled and reaches the introduction tube 23. After filling, the shrinkage that occurs in the process of cooling and solidifying the cosmetic occurs in the introduction tube 23 as shown in FIG. 1 and FIG. 2, and does not reach the filling space 43. [Industrial Applicability]

[0021] The embodiment of the stick-type cosmetic material dispensing container of the present invention has the above configuration. In the embodiment of the present invention, the exterior member exposed to the outside is described as being composed of three parts: the cap 5, the hakama tube 6, and the inner tube. However, it is also possible to integrate the cap 5, the hakama tube 6, and the inner tube 3 into an exterior member composed of two parts. The material of the exterior member can also be freely selected, such as metal, synthetic resin, or a mixture of metal and synthetic resin.

[0022] In addition, in the section of the embodiment of the present invention, the screw-engagement convex portion 222 in the leg tube 22 of the retaining tube 2 has a shape in which the female thread is divided by the notch 223, but the shape may be freely selected as long as it can be screwed into the male thread 311 of the threaded rod 3, and for example, it may be a simple convex shape.

[0023] The filling nozzle 11 inserted into the inlet tube 23 of the holding tube 2 during filling is a nozzle equipped with a heater in order to fill the heated and melted cosmetic material, and the inner diameter of the inlet tube 23 leading to the filling space 43, the diameter of the bottom hole 73 of the middle tube 2, and the diameter of the filling port 61 of the hakama tube 6 must be φ7.0 mm or more. [Explanation of symbols]

[0024] 1. Stick-type cosmetics 2 Holding tube 3 Threaded Rod 4 Sleeve 6 Hakama tube 11 Filling nozzle 21 Holding part 22 Leg tube 23 Introductory tube 31 Screw part 32 Base 33 Through hole 41 Guide groove 43 Filling Space 61 Filling port 211 (holding part) bottom surface 221 Engagement protrusion 222 Screw-fitting protrusion 231 Top opening 232 Bottom opening 311 Male thread

Claims

1. The present invention relates to a holding tube (2) having a leg tube (22) hanging down from a holding section (21) for holding a stick-shaped cosmetic material (1), an engaging protrusion (221) protruding from the lower outer wall of the leg tube (22) and a screwing protrusion (222) protruding from the lower inner wall of the leg tube (22); a sleeve (4) which accommodates the holding tube (2) so as to be able to slide up and down and has a guide groove (41) drilled long in the axial direction on the lower side wall thereof for regulating the range of rotation and up and down sliding of the holding tube (2) by engaging with the engaging protrusion (222) of the holding tube (2); a threaded rod (3) which is rotatably and non-detachably connected to the sleeve (4) and which is inserted into the leg tube (22) of the holding tube (2) so as to be rotatable and slidable up and down, and which has a threaded portion (31) having a male screw (311) screwed into the screw-engagement protrusion (222) on its outer wall, and a base portion (32) protruding from the lower end of the sleeve (4); and a hakama tube (6) into which the lower portion of the sleeve (4) and the base portion (32) of the threaded rod (3) are inserted and into which the base portion (32) is fastened, The sleeve (4) has a filling space (43) above the holding portion (21) of the holding tube (2), an introduction pipe (23) having an upper end opening (231) at the bottom surface (211) of the holding portion (21) is suspended coaxially within the leg tube (22) of the holding tube (2), a through hole (33) through which the introduction pipe (23) is inserted is drilled vertically through the threaded rod (3), and a filling port (61) is drilled in the bottom surface of the hakama tube (6) through which the lower end opening (232) of the introduction pipe (23) of the holding tube (2) is visible. This stick-shaped cosmetic dispenser is characterized in that the cosmetic can be filled into the filling space (43) in the sleeve (4) through the introduction tube (23) of the holding tube (2) from the filling port (61) of the hakama tube (6).

2. 2. The container for dispensing a stick-shaped cosmetic material according to claim 1, wherein the inner diameter of the introduction tube (23) of the holding tube (2) and the diameter of the filling port (61) of the hakama tube (6) are φ7.0 mm or more, and a filling nozzle (11) can be inserted therein.

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