Retractable cosmetic container

Abstract

To provide a deliver type cosmetic container in which a rod-shaped cosmetic or an upper end of a sleeve does not collide with a top surface of a cap inner side, even a deliver type cosmetic container of a lower part spiral type receives an impact of falling headfirst.SOLUTION: A deliver type cosmetic container 1A comprises: a lower part spiral type deliver structure body 30 in which a rod-shaped cosmetic A in a cylindrical sleeve 32 is delivered from an upper end opening face 32a of the sleeve 32 or is put back to the sleeve; an outer cylinder 20 which is fitted to a lower part of the deliver structure body 30; and a bottomed cylindrical cap 10 which is covered on an upper part of the deliver structure body 30 and is fitted to the outer cylinder. The cap 10 of the delivery type cosmetic container 1A has a slope 13 where a cap inner diameter becomes smaller as approaching the deepest part of a cap inner side, around the deepest part at inside of the cap. Preferably, a step 14 is provided adjacent to an outer edge of the slope 13. A minimum inner diameter D1 of the cap on the slope 13 is smaller than an outer diameter D2 of the sleeve 32.SELECTED DRAWING: Figure 5A

Description

Technical Field

[0006] ,

[0001] The present invention relates to a lower helical type push-out cosmetic container and a push-out cosmetic refill used in the cosmetic container.

[0002] A push-out cosmetic container is used as a container for stick cosmetics such as lipsticks, lip creams, and stick foundations.

[0003] The push-out cosmetic container has a sleeve surrounding the stick cosmetic and a push-out structure body provided with a push-out mechanism having a helical structure, and the stick cosmetic is fed out or retracted from the upper end of the sleeve. The push-out cosmetic container has an upper helical type (Patent Document 1) and a lower helical type depending on the difference in the helical structure in the push-out structure body (Patent Documents 2 and 3).

[0004] In the upper helical type (Patent Document 1), a sleeve and a helical cylinder having a helical groove are included in the thickness of the peripheral wall of the stick cosmetic. In this type, the cosmetic is often formed into a bullet shape.

[0005] In the lower helical type, a helical structure is provided below the stick cosmetic. The peripheral wall of the stick cosmetic is formed of a thin-walled metal cylindrical member called a sleeve. The helical cylinder is not included in the peripheral wall. Therefore, in the lower helical type, the peripheral wall of the stick cosmetic is thin, and it is often used when making the design of the push-out cosmetic container slim (Patent Documents 2 and 3). And in the lower helical type cosmetics, for aesthetic reasons, the stick cosmetic itself also has a small diameter, the upper end portion of the sleeve is cut obliquely, and the upper end portion of the stick cosmetic is slightly protruded from the upper end portion of the sleeve at the bottom dead point of the stick cosmetic, which is widely practiced.

[0006] On the other hand, in dispensing-type cosmetic containers, the lower part of the dispensing structure is attached to the outer cylinder that forms the bottom exterior of the dispensing-type cosmetic container. However, from an environmental perspective, it is desirable to make the dispensing structure detachable from the outer cylinder, thereby making the dispensing structure refillable (also called cartridge-based), so that when the cosmetic contents of the dispensing structure are used up, the dispensing structure can be replaced and the outer cylinder and cap can be reused repeatedly. Patent documents 1 and 2 also describe making the dispensing structure refillable.

[0007] When the dispensing structure of a dispensing-type cosmetic container is refillable, if the fitting strength between the dispensing structure and the outer cylinder is too strong, it becomes difficult to replace the dispensing structure. On the other hand, if the fitting strength is such that cosmetic users can easily replace the dispensing structure, then if the dispensing-type cosmetic container is dropped upside down for some reason, the dispensing structure may detach from the outer cylinder, causing the stick-shaped cosmetic product to collide with the top surface inside the cap, potentially damaging the product.

[0008] In contrast, Patent Document 1 proposes providing a stopper that forms a step on the edge of the top surface inside the cap of an upper spiral type dispensing cosmetic container. In an upper spiral type dispensing cosmetic container, the thickness of the peripheral wall of the dispensing structure is thick, and in the dispensing cosmetic container described in Patent Document 1, at the bottom dead center of the rod-shaped cosmetic, the rod-shaped cosmetic is completely submerged within the peripheral wall of the dispensing structure. Therefore, the step of the stopper holds down the upper end of the peripheral wall of the dispensing structure that is trying to move towards the top surface inside the cap, making it less likely for the dispensing structure to come off the outer cylinder, and even if it does come off, it is possible to prevent the rod-shaped cosmetic from colliding with the top surface of the cap. [Prior art documents] [Patent Documents]

[0009] [Patent Document 1] Japanese Utility Model Publication No. 1-168206 [Patent Document 2] Japanese Patent Publication No. 2018-29744 [Patent Document 3] Japanese Patent Publication No. 2017-35197 [Overview of the project] [Problems that the invention aims to solve]

[0010] However, in bottom-spiral type dispensing cosmetic containers, even if a step is provided on the edge of the top surface inside the cap, as described in Patent Document 1, the thickness of the sleeve, which is the peripheral wall of the rod-shaped cosmetic, is thin, making it difficult for the step to hold down the sleeve as it approaches the top surface inside the cap when it falls upside down. In particular, in bottom-spiral type dispensing cosmetic containers, the upper end of the sleeve is often cut at an angle for design purposes, and in that case, the step must hold down only one point at the tip of the upper end of the sleeve, rather than the entire circumference, making it even more difficult to hold down the sleeve with the step. When the sleeve collides with the top surface inside the cap, if the upper end of the rod-shaped cosmetic protrudes from the top end of the sleeve at the bottom dead center of the rod-shaped cosmetic, the upper end of the rod-shaped cosmetic will also collide with the top surface inside the cap, damaging the rod-shaped cosmetic. When a cosmetic user sees such damage to the rod-shaped cosmetic the first time they use it after attaching the refill to the outer cylinder, their impression of the cosmetic will be greatly diminished. Depending on the extent of the damage to the rod-shaped cosmetic, the subsequent user experience may also be reduced.

[0011] Furthermore, the sleeve may collide with the top surface inside the cap, damaging the resin inside the cap, and there is a risk that the resulting resin shavings may get mixed into the cosmetic product.

[0012] Therefore, the object of the present invention relates to preventing the upper end of a rod-shaped cosmetic or sleeve from colliding with the top surface inside the cap when an impact force is applied to a lower spiral-type dispensing cosmetic container, such as when it is dropped upside down, causing the dispensing structure to move towards the innermost part of the cap. [Means for solving the problem]

[0013] The inventors have discovered that, in a lower spiral-type dispensing cosmetic container, when an impact force is applied that pushes the dispensing structure toward the innermost part inside the cap, if a slope is formed around the innermost part inside the cap so that the upper end of the sleeve of the dispensing structure slides against the periphery of the innermost part inside the cap, the impact force pushing the dispensing structure toward the innermost part inside the cap is mitigated by the friction between the slope and the sleeve. Furthermore, if the minimum inner diameter of the cap at the slope is made smaller than the outer diameter of the sleeve, the rod-shaped cosmetic or the upper end of the sleeve will not reach the innermost part inside the cap, thus completing the present invention.

[0014] In other words, the present invention relates to a lower spiral type dispensing structure in which a rod-shaped cosmetic product inside a cylindrical sleeve is dispensed or retracted from the upper end opening surface of the sleeve by a spiral structure located below the rod-shaped cosmetic product. An outer cylinder that fits with the lower part of the dispensing structure, and A dispensing-type cosmetic container having a bottomed cylindrical cap that covers the top of the dispensing structure and fits with the outer cylinder, A dispensing-type cosmetic container is provided in which a slope is formed around the innermost part of the inside of the cap, where the inner diameter of the cap decreases as it approaches the innermost part of the inside of the cap, and the minimum inner diameter of the cap on the slope is smaller than the outer diameter of the sleeve.

[0015] Furthermore, the present invention relates to a lower spiral type dispensing structure in which a rod-shaped cosmetic product inside a cylindrical sleeve is dispensed or retracted from the upper end opening surface of the sleeve by a spiral structure located below the rod-shaped cosmetic product, and A dispensing-type cosmetic refill having a temporary cap that covers the top of the dispensing structure, A dispensing-type cosmetic refill is provided in which a slope is formed around the innermost part of the inside of the temporary cap, where the inner diameter of the temporary cap decreases as it approaches the innermost part of the inside of the temporary cap, and the minimum inner diameter of the temporary cap on the slope is smaller than the outer diameter of the sleeve. [Effects of the Invention]

[0016] According to the dispensing type cosmetic container of the present invention, a slope is formed around the innermost part of the inside of the cap, where the inner diameter of the cap decreases as it approaches the innermost part of the cap. Therefore, when the dispensing structure collides with the inner surface of the cap due to an impact such as an upside-down drop, the rod-shaped cosmetic protruding from the upper end opening of the sleeve or the upper end of the sleeve first hits the slope around the innermost part of the cap and slides against the slope. This sliding frictional force weakens the impact force even if the sleeve is thin. Furthermore, since the minimum inner diameter of the cap on the slope is smaller than the outer diameter of the sleeve, the upper end of the sleeve is prevented from reaching the innermost part of the cap. Therefore, even if an unused rod-shaped cosmetic at the bottom dead center protrudes from the sleeve for design purposes in the event of an impact such as an upside-down drop, it is less likely that the upper end of the rod-shaped cosmetic will collide with the top surface of the inside of the cap and be damaged. Thus, it is possible to prevent a decrease in the cosmetic user's impression due to damage to the cosmetic and a decrease in the usability of the rod-shaped cosmetic. Furthermore, the upper end of the sleeve prevents scratching the inside of the cap and generating resin shavings, thus eliminating the risk of resin shavings contaminating the cosmetic product.

[0017] The effect of this slope is achieved whether the upper opening surface of the sleeve is horizontal or inclined.

[0018] Furthermore, since the temporary cap of the dispensing type cosmetic refill of the present invention also has a slope similar to that described above, it is possible to prevent the upper end of the sleeve from colliding with the innermost part of the inside of the temporary cap of the refill due to impacts such as dropping it upside down, and therefore, damage to the stick-shaped cosmetic due to this collision can be suppressed. [Brief explanation of the drawing]

[0019] [Figure 1] Figure 1 is an assembly diagram of the dispenser-type cosmetic container 1A of the embodiment. [Figure 2] Figure 2 is a side view of an embodiment of a dispensing-type cosmetic container 1A, in which the rod-shaped cosmetic is at its bottom dead center and the dispensing structure is fitted into the outer cylinder. [Figure 3A]FIG. 3A is a partial cross-sectional view of the push-out type cosmetic container 1A of the embodiment with the cap fitted. [Figure 3B] FIG. 3B is a partial cross-sectional view of the push-out type cosmetic container 1A of the embodiment in a state where the sleeve abuts against the inner surface of the cap. [Figure 3C] FIG. 3C is a partial cross-sectional view of the upper end portion of the push-out type cosmetic container 1A of the embodiment in a state where the sleeve abuts obliquely against the inner surface of the cap. [Figure 4] FIG. 4 is a partial cross-sectional view of the upper end portion of the push-out type cosmetic container 1A' of the embodiment in a state where the sleeve with a horizontal upper end abuts against the inner surface of the cap. [Figure 5A] FIG. 5A is a partial cross-sectional view of the push-out type cosmetic container 1B of the embodiment. [Figure 5B] FIG. 5B is a partial cross-sectional view for explaining the operation of the push-out type cosmetic container 1B of the embodiment. [Figure 5C] FIG. 5C is a partial cross-sectional view for explaining the operation of the push-out type cosmetic container 1B of the embodiment. [Figure 6] FIG. 6 is a partial cross-sectional view and a cross-sectional view of the push-out type cosmetic container 1C of the embodiment. [Figure 7] FIG. 7 is a partial cross-sectional view and a cross-sectional view of the push-out type cosmetic container 1D of the embodiment. [Figure 8] FIG. 8 is a partial cross-sectional view of the push-out type cosmetic container 1E of the embodiment. [Figure 9] FIG. 9 is a partial cross-sectional view of the push-out type cosmetic container 1F of the embodiment. [Figure 10] FIG. 10 is a partial cross-sectional view of the push-out type cosmetic refill 2A of the embodiment. [Figure 11] FIG. 11 is a perspective view of the temporary cap 50A of the push-out type cosmetic refill 2A of the embodiment. [Figure 12] FIG. 12 is a partial cross-sectional view of the push-out type cosmetic refill 2B of the embodiment. [Figure 13] FIG. 13 is a perspective view of the temporary cap 50B of the push-out type cosmetic refill 2B of the embodiment.

MODE FOR CARRYING OUT THE INVENTION

[0020] The present invention will be described in detail below with reference to the drawings. In each figure, the same reference numerals indicate the same or equivalent components.

[0021] (Overall structure) Figure 1 is an assembly diagram of a dispensing-type cosmetic container 1A according to one embodiment of the present invention. As shown in the figure, this dispensing-type cosmetic container 1A comprises a dispensing structure 30, an outer cylinder 20 that fits into the lower part of the dispensing structure 30, and a bottomed cylindrical cap 10 that fits over the upper part of the dispensing structure 30 and fits into the outer cylinder 20. Figure 2 is a side view of the dispensing-type cosmetic container 1A with the dispensing structure 30 fitted into the outer cylinder 20 shown in Figure 1, and the rod-shaped cosmetic in the bottom dead center position.

[0022] In the dispensing structure 30, the rod-shaped cosmetic A is surrounded by a cylindrical sleeve 32 with a circular cross-section. The rod-shaped cosmetic A is dispensed or retracted from the upper end opening surface 32s of the sleeve 32 by the relative rotation between the skirt portion 40 at the base of the dispensing structure 30 and the sleeve 32.

[0023] The dispensing mechanism of the dispensing structure 30 is of the lower spiral type, and can be a known lower spiral type dispensing mechanism, such as those described in Patent Documents 2 and 3. Therefore, the thickness of the peripheral wall surrounding the rod-shaped cosmetic A is the thickness of the sleeve 32.

[0024] (sleeve) The sleeve 32 of the container 1A in this embodiment is formed from a thin-walled metal cylindrical member. The upper end opening surface 32s of the sleeve 32 is flat and inclined with respect to the central axis Ls of the sleeve 32. Therefore, the upper end opening surface 32s of the sleeve 32 is elliptical. In this embodiment, the inclination angle α (Figure 3A) of the upper end opening surface 32s with respect to the axial direction of the sleeve 32 is preferably 45° or more and less than 90°. The area of ​​the upper end opening surface 32s of the sleeve 32 and the inclination height H1 (i.e., the axial distance of the upper end 32a and lower end 32b of the upper end opening surface 32s of the sleeve 32) are determined accordingly. For example, when the inclination angle α is 60°, the preferred inclination height H1 is 6.0 to 7.7 mm.

[0025] In this invention, there are no particular restrictions on the shape of the upper end opening surface 32s of the sleeve 32, and the upper end opening surface 32s may be a bent surface. Also, in this invention, the upper end opening surface 32s of the sleeve 32 may be horizontal (perpendicular to the axis Ls of the sleeve) or inclined, and the degree of inclination can be appropriately determined from the viewpoint of usability and design of the rod-shaped cosmetic A.

[0026] Figure 2 is a side view of an embodiment of a dispensing-type cosmetic container 1A in which the lower part of the dispensing structure 30, where the rod-shaped cosmetic A is at its bottom dead center, is fitted into the outer cylinder 20 and the cap 10 has been removed. In the present invention, from a design standpoint, unused rod-shaped cosmetic A can be made to protrude from the upper end opening surface 32s of the sleeve 32 at the bottom dead center, and the amount of protrusion HA of the rod-shaped cosmetic A in the axial Ls direction of the sleeve from the upper end 32a of the sleeve 32 at the bottom dead center can be, for example, 0.5 mm or more. On the other hand, if the amount of protrusion HA is increased, it becomes necessary to increase the height H2 (Figure 3A) of the slope 13 in order to prevent the rod-shaped cosmetic A from contacting and damaging the inner surface of the cap, so it is preferable that the amount of protrusion HA be 2.0 mm or less, and more preferably 1.0 mm or less.

[0027] In a dispensing-type cosmetic container where an unused stick-shaped cosmetic is retracted into the sleeve at its bottom dead center, as long as the stick-shaped cosmetic is retracted to the bottom dead center with the cap attached, there is little risk of the stick-shaped cosmetic striking the inside top surface of the cap due to an upside-down fall, etc. However, there are cases where the stick-shaped cosmetic is not at the bottom dead center and is exposed from the sleeve due to incomplete retraction with the cap attached. In this case, there is a risk of the stick-shaped cosmetic striking the inside top surface of the cap due to an upside-down fall, etc. Therefore, the present invention is also useful in dispensing-type cosmetic containers where an unused stick-shaped cosmetic is retracted into the sleeve at its bottom dead center.

[0028] With the dispensing structure 30 fitted to the outer cylinder 20, the relative rotation between the outer cylinder 20 and the sleeve 32 causes the rod-shaped cosmetic material A to be dispensed or retracted from the upper end opening surface 32s of the sleeve 32, as shown by the dashed line in Figure 2.

[0029] (Slope of the cap) Figure 3A is a partial cross-sectional view showing a rod-shaped cosmetic A in a dispensing structure 30 at its bottom dead center, with the cap 10 placed over it and fitted into the outer cylinder 20. In this figure, the hatched portion represents a cross-section passing through the central axis Ls of the sleeve 32 and the upper end 32a of the sleeve 32. Although Figure 3A shows a configuration in which the slope 13 is formed integrally with the cap 10, in the present invention, the slope 13 may be configured as a separate component fitted inside the cap 10.

[0030] As shown in the figure, the dispensing type cosmetic container 1A of this embodiment has a slope 13 around the top surface 12, which is the innermost part inside the cap 10, more specifically, around the entire edge of the top surface 12. Therefore, when the slope 13 is cut by a plane perpendicular to the axis Lc of the cap 10, the cross-sectional shape of the slope 13 is a circle at any position in the direction of the axis Lc. Because the slope 13 is provided around the entire edge of the top surface 12 inside the cap, even if a point on the upper end 32a of the sleeve 32 first hits the inner surface of the cap 10 in the event of an upside-down fall, the upper end 32a will first hit the slope 13, causing it to slide against the slope 13 and mitigate the impact force.

[0031] With the cap 10 placed over the dispensing structure 30 and fitted with the outer cylinder 20, the lower end 13b of the slope 13 is in a position where it is almost in contact with the upper end 32a of the sleeve 32. By shortening the distance between the lower end 13b of the slope 13 and the upper end 32a of the sleeve 32, it is possible to prevent the cap 10 from becoming unnecessarily long.

[0032] As the slope 13 is inclined, the inner diameter of the cap decreases as it approaches the innermost part of the inside of the cap. Therefore, even if the dispensing structure 30 is subjected to an impact due to an upside-down fall or the like, and the skirt portion 40 of the dispensing structure 30 detaches from the outer cylinder 20 as shown in Figure 3B, and the amount of movement of the dispensing structure 30 toward the top surface 12 inside the cap increases, the upper end 32a of the sleeve 32 slides against the slope 13, and the impact force is weakened by friction.

[0033] The minimum inner diameter D1 of the slope 13 is smaller than the outer diameter D2 of the sleeve 32 (Figure 3A), and within the range of the inclined slope 13, there is a point where the inner diameter of the slope 13 is equal to the outer diameter D2 of the sleeve. Therefore, even if the sleeve 32 is pushed towards the top surface 12 inside the cap due to an impact such as an upside-down fall, once it reaches the point where the inner diameter of the slope 13 is equal to the outer diameter D2 of the sleeve 32, the sleeve 32 cannot advance any further in the direction of the top surface 12. Even if the sleeve 32 tilts and enters the cap 10 due to rattling or the like, as shown in Figure 3C, once the upper end 32a of the upper end opening surface of the sleeve 32 enters the inclination of the slope 13 and the lower end 32b of the upper end opening surface of the sleeve 32 hits the inner wall of the cap 10, the sleeve 32 will have difficulty advancing any further. Even if the sleeve 32 continues to advance in that state, once it reaches the point where the inner diameter of the slope 13 is equal to the outer diameter D2 of the sleeve 32, the sleeve 32 cannot advance any further in the direction of the top surface 12. Normally, due to friction between the upper end 32a of the sleeve 32 and the slope 13, as shown in Figure 3B, the sleeve 32 stops entering the top surface 12 direction before the inner diameter of the slope 13 becomes equal to the outer diameter D2 of the sleeve 32. If the distance from the lower end 13b of the slope to the upper end 32a of the sleeve 32 in the axial Lc direction of the cap 10 is taken as the entry amount H3, then the height of the slope 13 H2, the protrusion amount HA of the rod-shaped decorative material, the inclination angle β of the cap 10 with respect to the axial Lc direction, the outer diameter D2 of the sleeve, the inner diameter D3 of the cap below the lower end of the slope 13 (on the outer cylinder side), etc. are appropriately determined so that the sum of the entry amount H3 and the protrusion amount HA of the rod-shaped decorative material does not reach the height H2 of the slope 13. This makes it possible to suppress damage to the rod-shaped decorative material A when it falls upside down, etc.

[0034] More simply, increasing the height H2 of the slope 13 and increasing the length of the slope 13 prevents the upper end 32a of the sleeve 32 or the upper end At of the rod-shaped decorative material A from reaching the small diameter portion of the top surface 12 inside the cap, regardless of whether the upper end of the sleeve is cut at an angle or not. If the upper end of the sleeve is cut at an angle (i.e., the inclination height H1 of the sleeve 32 is greater than 0), and the entry amount H3 is overestimated so that the entry of the sleeve 32 stops when the entire circumference of the sleeve 32 reaches the slope 13, the entry amount H3 will be equal to the inclination height H1 of the sleeve 32, but in reality, it is preferable that the entry amount H3 is about half of that. Therefore, it is preferable to set the height H2 of the slope 13 to be at least half of the inclination height H1 of the sleeve 32. On the other hand, making the height H2 of the slope 13 excessively high will make the cap 10 unnecessarily large. Therefore, it is preferable that the height H2 of the slope 13 be 4 / 5 or less of the inclination height H1 of the sleeve 32, and more preferably 3 / 4 or less. That is, it is preferable that the inclination height H1 of the sleeve 32 and the height H2 of the slope 13 have the following relationship. 1 / 2H1 ≤ H2 ≤ 4 / 5H1

[0035] On the other hand, as shown in Figure 4, when the upper end of the sleeve 32 is horizontal (i.e., the inclination height H1=0) and the rod-shaped cosmetic A protrudes from the sleeve 32, if the sleeve 32 moves towards the top surface 12 inside the cap due to an upside-down fall or the like, the upper end 32a of the sleeve 32 will come into contact with the slope 13 and slide against it as it moves. When the inner diameter of the slope 13 becomes less than or equal to the outer diameter D2 of the sleeve 32, the sleeve 32 will no longer move towards the top surface 12. Therefore, it is possible to prevent the upper end At of the rod-shaped cosmetic A from colliding with the top surface 12 and being severely damaged.

[0036] Regarding the size of the inclination angle β of the slope 13 with respect to the shaft Lc of the cap 10, a larger inclination angle β is preferable to stop the sleeve 32 from advancing toward the top surface 12 inside the cap due to an upside-down fall, etc., by having the upper end of the sleeve 32 abut against the slope 13. However, a smaller inclination angle β is preferable to increase the frictional force between the upper end of the sleeve 32 and the slope 13 to stop the sleeve 32 from advancing. Therefore, it is preferable that the inclination angle β be an angle that sufficiently increases the frictional force between the upper end 32a of the sleeve 32 and the slope 13. If the inclination angle β is too large, the protruding portion of the rod-shaped decorative material A from the upper end opening surface 32s of the sleeve 32, which is advancing toward the top surface 12 inside the cap due to an upside-down fall, etc., will collide with and damage the slope 13. Also, the upper end of the sleeve 32 will collide with the slope 13. When the upper end 32a of the sleeve 32 collides with the slope 13, if the sleeve 32 is made of metal and the cap 10 is made of resin, the resin forming the slope 13 may be scraped off by the sleeve 32, and there is a risk that the scraped resin may be mixed into the rod-shaped cosmetic A as foreign matter. Therefore, it is preferable to set the inclination angle β such that the angle γ between the inclined surface of the slope 13 and the upper end opening surface 32s of the sleeve 32 is 90° or more, and the angle γ may be 105° or more as long as the sum of this angle γ and the inclination angle α of the upper end opening surface 32s does not exceed 180.

[0037] (Step) The dispensing-type cosmetic container 1B shown in Figure 5A differs from the dispensing-type cosmetic container 1A shown in Figure 3A in that the cap 10 has a step 14 adjacent to the outer edge of the slope 13, but otherwise it is configured similarly.

[0038] The step 14 is particularly useful when providing rattle-preventing ribs 15 (Figure 6) and 16 (Figure 7), described later, on the inner peripheral wall of the cap 10 to prevent the sleeve 32 from rattling inside the cap or from entering at an angle towards the top surface inside the cap. In this case, from the viewpoint of preventing damage to the rod-shaped decorative material A protruding from the upper end opening surface of the sleeve 32, it is preferable that the inner diameter D4 of the cap at the step 14 be larger than the inner diameter D5 of the sleeve 32. Furthermore, it is even more preferable that the inner diameter D4 of the cap at the step 14 be smaller than the outer diameter D2 of the sleeve (i.e., D2 > D4 > D5) so that when an upside-down fall occurs while the sleeve 32 is moving straight towards the top surface 12 due to the suppression of rattle, the sleeve 32 will first hit the step 14. The height H2 of the slope 13 can be lowered by using the step 14 in combination with the rattle-preventing ribs.

[0039] Furthermore, the step width d preferably has the following relationship in order to prevent damage to the rod-shaped cosmetic A due to the step and to ensure that the sleeve 32 hits the step 14 in the event of an upside-down fall or the like. (D3-D2) / 2 <d<(D3-D5) / 2

[0040] In the event of an upside-down fall, the upper end 32a of the sleeve 32 colliding with the top surface 12 inside the cap cannot be prevented solely by the step 14 pressing down on the upper end 32a of the sleeve 32. Under strong impact, the upper end 32a of the sleeve 32 can easily overcome the step 14 and move towards the top surface 12. However, if both a slope 13 and a step 14 are formed on the cap 10, in the event of an upside-down fall, the upper end 32a of the sleeve 32 first hits the step 14, and then, as shown in Figure 5B, overcomes the step 14 and hits the slope 13, sliding against the slope 13. This reduces the impact when the upper end 32a of the sleeve 32 hits the slope 13. Therefore, for example, as shown in Figure 5C, even if the dispensing structure 30 detaches from the skirt portion 40 during an upside-down fall and tilts significantly inside the cap 10, it is possible to reliably prevent the upper end 32a of the sleeve 32 from colliding with the top surface 12 inside the cap.

[0041] (Vertical ribs to prevent rattling) The dispensing-type cosmetic container 1C shown in Figure 6 differs from the dispensing-type cosmetic container 1B shown in Figure 5A in that vertical ribs 15, which prevent rattling of the sleeve extending in the axial direction Lc of the cap, are integrally molded to the inner surface of the peripheral wall of the cap 10. In this dispensing-type cosmetic container 1C, the vertical ribs 15 extend from directly below the slope 13 to near the lower end of the cap 10. Also, as shown in the cross-sectional view AA in the same figure, the vertical ribs 15 are provided at predetermined intervals on the inner surface of the peripheral wall of the cap 10.

[0042] By providing the vertical ribs 15, even if the dispensing structure 30 detaches from the skirt portion 40 during an upside-down fall or the like, the dispensing structure 30 will not rattle or tilt significantly inside the cap 10. Therefore, the amount of entry of the dispensing structure 30 from the upper end 32a of the sleeve 32 hitting the slope 13 until its entry stops can be shortened compared to the case without the vertical ribs 15. As a result, the cap 10 can be made shorter, and the dispensing type cosmetic container 1C can be made smaller.

[0043] (Ring-shaped rib to prevent rattling) The dispensing-type cosmetic container 1D shown in Figure 7 differs from the dispensing-type cosmetic container 1B shown in Figure 5A in that an annular rib 16 extending in the circumferential direction to prevent rattling is integrally molded to the inner surface of the peripheral wall of the cap 10. By providing the annular rib 16 in this way, rattling of the dispensing structure 30 inside the cap 10 is suppressed, similar to the case where a longitudinal rib 15 is provided, and the amount the upper end 32a of the sleeve 32 enters can be shortened, thereby shortening the length of the cap 10 and making the dispensing-type cosmetic container 1D more compact.

[0044] (Transformation patterns) The present invention can take on various modified forms. For example, the dispensing type cosmetic container 1E shown in Figure 8 has a curved slope 13 compared to the dispensing type cosmetic container 1B shown in Figure 5A, and the dispensing type cosmetic container 1F shown in Figure 9 has a curved slope 13, and does not have a flat top surface at the innermost part of the inside of the cap 10, but the innermost part and its surrounding area are formed in a bowl shape. In these figures, the dashed lines represent the position where the sleeve, due to an upside-down fall or the like, lunges towards the innermost part, hits the slope 13, and stops. Thus, in this invention, the shape closer to the innermost part than the slope 13 can be appropriately changed according to the shape of the rod-shaped cosmetic A and the amount of protrusion HA.

[0045] (Refillable cosmetic product) The cap configurations of the various dispensing-type cosmetic containers of the present invention described above can also be applied to the caps of dispensing-type cosmetic refills, which provide the dispensing structure of the dispensing-type cosmetic container as a replaceable part.

[0046] Figure 10 is a partial cross-sectional view of a dispensing-type cosmetic refill 2A, in which a temporary cap 50A is placed over a lower spiral-type dispensing structure 30 similar to the dispensing structure 30 of the dispensing-type cosmetic containers 1A to 1F described above, with the hatched area representing the cross-section. Figure 11 is a perspective view of this temporary cap 50A.

[0047] The dispensing-type cosmetic refill 2A does not have an outer cylinder into which the lower part of the dispensing structure 30 fits. Therefore, the length of the temporary cap 50A in the axial Lc direction does not need to reach the length of the outer cylinder, and the temporary cap 50A is formed to be shorter. The temporary cap 50A is held on the upper part of the dispensing structure 30 by the dispensing structure 30 being pushed into the temporary cap 50A from the upper end opening surface 32s side.

[0048] The temporary cap 50A can be provided with various deformations of the caps 10 of the dispensed cosmetic containers 1A to 1F described above, but it is particularly preferable to provide a step 54 adjacent to the outer edge of the slope 53. That is, when the temporary cap 50A is attached to the dispensed structure 30, the temporary cap 50A is not fitted with the outer cylinder, so without the step 54, there is likely to be variation in the depth to which the dispensed structure 30 is pushed into the temporary cap 50A. If it is pushed in too hard or subjected to the impact of being dropped upside down, the rod-shaped cosmetic A protruding from the upper end opening surface 32s of the sleeve 32 will hit the top surface 52 and get damaged. In addition, there is a concern that the upper end 32a of the sleeve 32 of the dispensed structure 30 will hit the top surface 52 inside the temporary cap, causing the top surface 52 to be scraped by the sleeve 32, and that the scraped material may get mixed into the rod-shaped cosmetic A. In contrast, by providing a step 54 and pushing the sleeve 32 until its upper end 32a hits the step 54, the depth to which the dispensing structure 30 is pushed into the temporary cap 50A can be kept constant.

[0049] If a step 54 is formed on the temporary cap 50A but a slope 53 is not formed, the upper end 32a of the sleeve 32 may overcome the step 54 due to the pushing of the dispensing structure 30 onto the temporary cap 50A or by dropping it upside down, causing the rod-shaped decorative material A protruding from the upper end opening surface 32s of the sleeve 32 to strike the top surface 52 and get damaged. There is also concern that the upper end 32a of the sleeve 32 may collide with the top surface 52 due to dropping it upside down, generating debris from the top surface 52. In contrast, by forming both the slope 53 and the step 54, the amount of pushing of the dispensing structure 30 onto the temporary cap 50A is kept constant, and even if the upper end 32a of the sleeve 32 overcomes the step 54, it is possible to suppress the rod-shaped decorative material A protruding from the sleeve 32 from striking the top surface 52 and getting damaged, and the upper end 32a of the sleeve 32 from scraping the top surface 52.

[0050] Furthermore, in order to ensure that the temporary cap 50A is securely held by the dispensing structure 30 and that the temporary cap 50A does not come off unintentionally, it is also preferable to provide the temporary cap 50A with the rattling prevention longitudinal rib 15 shown in Figure 6 and the rattling prevention annular rib 16 shown in Figure 7.

[0051] Furthermore, in order to strengthen the fit between the sleeve 32 of the dispensing structure 30 and the temporary cap 50B, a slit 55 extending in the direction of the axis Lc of the temporary cap 50B may be provided in the peripheral wall of the temporary cap 50B, as shown in Figures 12 and 13, for the dispensing type cosmetic refill 2B and temporary cap 50B. The slit 55 connects the inner and outer surfaces of the peripheral wall and is formed radially around the axis Lc of the temporary cap 50B. This slit 55 also has the function of preventing rattling of the sleeve.

[0052] (Resin materials) The resin used to form the dispensing-type cosmetic container and dispensing-type cosmetic refill of the present invention can be the same as that used for known dispensing-type cosmetic containers and dispensing-type cosmetic refills. However, for the temporary cap that forms the dispensing-type cosmetic refill, it is preferable to appropriately select and use a resin such as polyethylene, polypropylene, or ABS, depending on the required hardness of the resin, considering points such as the fact that it is held in place by the dispensing structure 30 when the dispensing structure 30 is pressed in, and the presence or absence of a slit 55. [Explanation of symbols]

[0053] 1A, 1A', 1B, 1C, 1D, 1E, 1F Bottom spiral type dispensing cosmetic container 2A, 2B Refillable Cosmetic Products 10 caps 11 Stopper 11a Step 12. Top surface inside the cap 13 Slope 13b Lower end of slope 14 steps 15 vertical ribs 16 Annular Ribs 20 Outer cylinder 30 Manipulation structure 31 Peripheral wall 32 sleeves 32a top end 32b bottom end 32s top opening surface 33 Spiral groove 34 Guide tube 40 Hakama section 50A, 50B temporary caps 52 Top surface inside the temporary cap 53 Slope 54 steps 55 slits A. Stick-type cosmetic At top d step width Minimum inner diameter of the cap on the D1 slope D2 Sleeve outer diameter D3 Inner diameter of the cap below the bottom end of the slope D4 Inner diameter of the cap at the step D5 Sleeve Inner Diameter Ls sleeve central axis Lc cap shaft H1 Incline height of the upper opening surface of the sleeve H2 Slope Height H3 Sleeve entry amount from the bottom of the slope Protrusion amount of rod-shaped cosmetic from the upper end of the HA sleeve α The angle of inclination of the upper end opening surface of the sleeve with respect to the sleeve axis. β The angle of inclination of the slope relative to the axis of the cap γ Angle between the sloped surface of the ramp and the upper end opening surface of the sleeve.

Claims

1. A lower spiral type dispensing structure in which a rod-shaped cosmetic product inside a cylindrical sleeve is dispensed or retracted from the upper end opening of the sleeve by a spiral structure located below the rod-shaped cosmetic product. An outer cylinder that fits with the lower part of the dispensing structure, and A retractable cosmetic container having a bottomed cylindrical cap that covers the top of the retractable structure and fits into the outer cylinder, The upper end opening surface of the sleeve is inclined with respect to the axial direction of the sleeve. The rod-shaped cosmetic protrudes from the upper end opening surface of the sleeve at its bottom dead center. A retractable cosmetic container is provided in which a slope is formed around the innermost part of the inside of the cap, the inner diameter of the cap decreases as it approaches the innermost part of the cap, the minimum inner diameter of the cap on the slope is smaller than the outer diameter of the sleeve, and the upper end of the sleeve slides against the slope toward the top surface of the cap when the retractable structure is directed toward the innermost part of the cap.

2. The retractable cosmetic container according to claim 1, wherein the cap has a step adjacent to the outer edge of the slope.

3. The retractable cosmetic container according to claim 1 or 2, wherein the slope is formed around the entire circumference of the edge of the top surface, which is the innermost part of the inside of the cap.

4. The retractable cosmetic container according to claim 1 or 2, wherein the height of the slope is 1 / 2 or more of the inclination height of the sleeve in a cross-section including the tip of the sleeve and the axis of the sleeve.

5. The retractable cosmetic container according to claim 1 or 2, having vertical ribs extending in the axial direction of the cap on the inner surface of the peripheral wall of the cap to prevent rattling.

6. The retractable cosmetic container according to claim 1 or 2, having annular ribs extending in the circumferential direction of the cap on the inner surface of the peripheral wall of the cap to prevent rattling.

7. The retractable cosmetic container according to claim 1 or 2, wherein in a cross-section passing through the central axis of the sleeve and the upper end of the sleeve, the angle between the inclined surface of the slope and the opening surface of the upper end of the sleeve is 90° or more.

8. A lower spiral type dispensing structure in which a rod-shaped cosmetic product inside a cylindrical sleeve is dispensed or retracted from the upper end opening surface of the sleeve by a spiral structure located below the rod-shaped cosmetic product, and A retractable cosmetic refill comprising a temporary cap that covers the top of the retractable structure, The upper end opening surface of the sleeve is inclined with respect to the axial direction of the sleeve. The rod-shaped cosmetic protrudes from the upper end opening surface of the sleeve at its bottom dead center. A retractable cosmetic refill is provided in which a slope is formed around the innermost part of the inside of the temporary cap, the inner diameter of the temporary cap decreases as it approaches the innermost part of the temporary cap, the minimum inner diameter of the temporary cap on the slope is smaller than the outer diameter of the sleeve, and the upper end of the sleeve slides against the slope toward the top surface of the cap when the retractable structure is directed toward the innermost part of the inside of the temporary cap.

9. The retractable cosmetic refill according to claim 8, wherein the temporary cap has a step adjacent to the outer edge of the slope.

10. The retractable cosmetic refill according to claim 8 or 9, having a slit extending in the axial direction of the temporary cap on the peripheral wall of the temporary cap, which strengthens the fit between the temporary cap and the sleeve.

11. The retractable cosmetic refill according to claim 8 or 9, wherein the inner surface of the peripheral wall of the temporary cap has vertical ribs extending in the axial direction of the temporary cap to prevent rattling.

12. The retractable cosmetic refill according to claim 8 or 9, wherein the inner surface of the peripheral wall of the temporary cap has annular ribs extending in the circumferential direction of the temporary cap to prevent rattling.

13. The retractable cosmetic refill according to claim 8 or 9, wherein in a cross-section passing through the central axis of the sleeve and the upper end of the sleeve, the angle between the inclined surface of the slope and the opening surface of the upper end of the sleeve is 90° or more.

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