Bar-like cosmetic material delivery container

Abstract

To provide a bar-like cosmetic material delivery container capable of stably holding a bar-like cosmetic material even when the number of claw pieces is reduced and preventing the bar-like cosmetic material from coming off from a bar-like cosmetic material holding member.SOLUTION: A delivery container 1 comprises a core chuck member 10, a leading cylinder 20 including a through-hole 20a, an end cylinder 30 to be assembled to the leading cylinder 20, and a delivery mechanism for forward and backward moving the bar-like cosmetic material A from a tip opening 20b of the through-hole 20a by relative rotation between the leading cylinder 20 and the end cylinder 30. The core chuck member 10 includes claw pieces 12 extending along an axial direction of the bar-like cosmetic material A and holding the outer peripheral surface of the bar-like cosmetic material A, a base-part end face 15a for holding a bottom of the bar-like cosmetic material A, blade parts 13 extending from the claw pieces 12 in the circumferential direction along the outer peripheral surface of the bar-like cosmetic material A and holding the outer peripheral surface of the bar-like cosmetic material A, and space parts 13c formed behind the blade parts 13. The through-hole 20a includes guide grooves 21 for guiding the core chuck member 10 along the axial direction, where the claw pieces 12 and the blade parts 13 are located in the guide grooves 21.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a container for dispensing a stick-shaped cosmetic material. [Background technology]

[0002] Patent Document 1 describes a container for dispensing stick-shaped cosmetic material equipped with a core chuck (stick-shaped cosmetic material holding member) for holding the stick-shaped cosmetic material. In this container, the core chuck is formed by providing multiple slits in a cylindrical core chuck body and dividing the circumferential portion into multiple holding pieces (jaw pieces). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-329176 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the container described in Patent Document 1, the core chuck has four holding pieces, each of which is located in a groove in the front tube. If the number of holding pieces were to be reduced in this container, the area of ​​the stick-shaped cosmetic material held by the core chuck would be smaller, and there is a risk that sufficient holding force would not be maintained. Therefore, when the stick-shaped cosmetic material is advanced or retracted, or when the container is dropped and subjected to impact, the stick-shaped cosmetic material would easily come off the core chuck.

[0005] To provide a stick-shaped cosmetic material that can be stably held even with a reduced number of claw pieces and that prevents the stick-shaped cosmetic material from falling out of a stick-shaped cosmetic material holding member, the present invention being made in consideration of such technical problems. [Means for solving the problem]

[0006] According to one aspect of the present invention, a stick-shaped cosmetic material dispensing container has a cosmetic material holding section that holds the outer circumferential surface of a stick-shaped cosmetic material, and a base section from which the cosmetic material holding section stands, and further comprises a stick-shaped cosmetic material holding member that holds the stick-shaped cosmetic material, a front tube having a through hole through which the stick-shaped cosmetic material can be advanced and retreated, a base tube that is assembled so as to be rotatable relative to the front tube, and a dispensing device that advances and retreats the stick-shaped cosmetic material held by the stick-shaped cosmetic material holding member from a tip opening of the through hole of the front tube by relative rotation between the front tube and the base tube. the cosmetic material holding portion has a claw piece extending along the axial direction of the stick-shaped cosmetic material and holding the outer peripheral surface of the stick-shaped cosmetic material, a bottom portion holding the bottom of the stick-shaped cosmetic material, a wing portion extending circumferentially from the claw piece along the outer peripheral surface of the stick-shaped cosmetic material and holding the outer peripheral surface of the stick-shaped cosmetic material, and a space portion formed rearward of the wing portion, and the through hole has a guide groove that guides the stick-shaped cosmetic material holding member along the axial direction, and the claw piece and the wing portion are positioned in the guide groove. Effect of the Invention

[0007] According to the above aspect, a wing portion is provided that extends circumferentially from the claw piece along the outer peripheral surface of the stick-shaped cosmetic material and holds the outer peripheral surface of the stick-shaped cosmetic material, and the claw piece and the wing portion are located within the guide groove of the through hole. Therefore, even if the number of claw pieces is reduced, sufficient holding force for holding the stick-shaped cosmetic material can be ensured because of the provision of the wing portion. Therefore, even if the number of claw pieces is reduced, the stick-shaped cosmetic material can be stably held, and the stick-shaped cosmetic material can be prevented from falling out of the stick-shaped cosmetic material holding member. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 shows a stick-type cosmetic material dispensing container according to a first embodiment of the present invention, where (a) is a cross-sectional view showing a stick-type cosmetic material holding member at its most retracted position, and (b) is a cross-sectional view taken along line IB-IB in FIG. 1(a). [Diagram 2]FIG. 2 shows a stick-shaped cosmetic material holding member, where (a) is a front view, (b) is a side view, (c) is an enlarged front cross-sectional view of the cosmetic material holding portion of the stick-shaped cosmetic material holding member, and (d) is a cross-sectional side view of FIG. 2(c). [Diagram 3] FIG. 3 is an enlarged view of the cosmetic material holding portion, where (a) is a front view, (b) is a side view, (c) is a plan view showing the state before the stick-shaped cosmetic material is inserted, and (d) is a cross-sectional view along line IIID-IIID in FIG. 3(b) showing the state after the stick-shaped cosmetic material has been inserted. [Figure 4] FIG. 4 is a diagram showing a stick-shaped cosmetic material holding member in a stick-shaped cosmetic material dispensing container according to a first modified example of the first embodiment of the present invention, where (a) is a front view, (b) is a side view, (c) is a plan view showing the state before a stick-shaped cosmetic material is inserted, (d) is a cross-sectional view at the same position as FIG. 1(b), and (e) is a cross-sectional view along the IVE-IVE line in FIG. 4(b) with a stick-shaped cosmetic material inserted. [Diagram 5] FIG. 5 is a diagram showing a stick-shaped cosmetic material holding member according to a second modified example of the first embodiment of the present invention, where (a) is a front view and (b) is a side view. [Figure 6] FIG. 6 is a diagram showing a stick-shaped cosmetic material holding member according to a third modified example of the first embodiment of the present invention, where (a) is a front view and (b) is a side view. [Figure 7] FIG. 7 is a diagram showing a stick-shaped cosmetic material holding member according to a fourth modified example of the first embodiment of the present invention, where (a) is a front view and (b) is a side view. [Figure 8] Figure 8 is a cross-sectional view of a stick-shaped cosmetic material dispensing container according to a second embodiment of the present invention, where (a) is a front cross-sectional view showing the state in which the stick-shaped cosmetic material holding member is positioned at the retraction limit, (b) is a side cross-sectional view showing the state in which the stick-shaped cosmetic material holding member is positioned at the retraction limit, (c) is a cross-sectional view along line VIIIC-VIIIC in Figure 8(a), and (d) is a cross-sectional view along line VIIID-VIIID in Figure 8(a). [Figure 9]FIG. 9 shows a stick-shaped cosmetic material holding member, where (a) is a front view, (b) is a side view, (c) is a plan view, and (d) is an enlarged cross-sectional view showing the cosmetic material holding portion of the stick-shaped cosmetic material holding member. [Figure 10] Figure 10 is an enlarged view of the cosmetic material holding portion, where (a) is a front view, (b) is a side view, (c) is a cross-sectional view along line XC-XC in Figure 10(a), and (d) is a cross-sectional view along line XD-XD in Figure 10(a). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0010] First Embodiment First, with reference to Figs. 1 to 3, a stick-shaped cosmetic material dispensing container (hereinafter simply referred to as "dispensing container") 1 according to a first embodiment of the present invention will be described.

[0011] Fig. 1 is a diagram showing a dispensing container 1, where (a) is a cross-sectional view showing a state in which a core chuck member 10 is positioned at the most retracted position, and (b) is a cross-sectional view taken along line IB-IB in Fig. 1(a). Fig. 2 is a diagram showing a core chuck member 10, where (a) is a front view, (b) is a side view, (c) is an enlarged front cross-sectional view of a cosmetic material holding portion 11 in the core chuck member 10, and (d) is a cross-sectional view of the side in Fig. 2(c). Fig. 3 is an enlarged view of the cosmetic material holding portion 11, where (a) is a front view, (b) is a side view, (c) is a plan view showing a state before a stick-shaped cosmetic material A is inserted, and (d) is a cross-sectional view taken along line IIID-IIID in Fig. 3(b) showing a state in which a stick-shaped cosmetic material A has been inserted.

[0012] As shown in Fig. 1(a), the dispensing container 1 is a container capable of dispensing a stick-shaped cosmetic material A having a substantially circular cross-sectional shape. The stick-shaped cosmetic material A is a molded core formed into a stick shape and is used, for example, as an eyebrow, eyeliner, lip liner, etc. The outer diameter of the stick-shaped cosmetic material A is formed to be slightly larger than the inner diameter of a cosmetic material holding portion 11 (see Figs. 3(a) and 3(b)) which will be described later.

[0013] The dispensing container 1 comprises a leading tube 20 having a through hole 20a through which the stick-shaped cosmetic material A can advance and retreat, a base tube 30 assembled to the leading tube 20 so as to be rotatable relative to the leading tube 20, a core chuck member 10 as a stick-shaped cosmetic material holding member that holds the stick-shaped cosmetic material A, and a female threaded tube 40 arranged within the base tube 30 so as not to be rotatable relative to the base tube 30.

[0014] In the following, the direction along the central axis of the through hole 20a in the leading tube 20 will be referred to as the "axial direction", the direction around the central axis of the through hole 20a will be referred to as the "circumferential direction", and the radial direction around the central axis of the through hole 20a will be referred to as the "radial direction". Additionally, the movement of the stick type cosmetic material A being dispensed from the dispensing container 1 will be referred to as the "forward movement", the direction in which the stick type cosmetic material A is dispensed will be referred to as the "forward movement", the movement of the stick type cosmetic material A being retracted into the dispensing container 1 will be referred to as the "retraction movement", and the direction in which the stick type cosmetic material A is retracted will be referred to as the "rearward movement".

[0015] The front tube 20 is a tubular member in which a through hole 20a is formed penetrating in the axial direction. The front tube 20 has a knob 24 which is pinched by the user, and an insertion portion 27 which is formed continuous with the knob 24 in the axial direction and is inserted into the base tube 30. The cross-sectional shape of the through hole 20a is similar to the cross-sectional shape of the stick-shaped cosmetic material A, and is formed in a substantially circular shape. The knob 24 is formed in a tapered shape in the axial direction so that the outer diameter gradually decreases from the insertion portion 27 side toward the tip.

[0016] On the outer circumferential surface of the fitting portion 27, there are formed an annular fitting protrusion 25 that fits into a fitting recess 32 (described later) formed in the base tube 30, and an O-ring groove 26 in which an O-ring 2 is attached. The O-ring 2 is provided in a compressed state between the front tube 20 and the base tube 30, thereby generating an appropriate resistance when the front tube 20 and the base tube 30 are rotated relative to each other. This improves the operability of the user.

[0017] The through hole 20a extends along the axial direction and has a guide groove 21 that protrudes radially outward to guide the core chuck member 10 along the axial direction, and a wall-shaped portion 22 along which the outer peripheral surface of the rod-shaped cosmetic material A slides along the axial direction.

[0018] 1(b), the guide groove 21 is composed of a plurality of grooves (two in this example). The two guide grooves 21 are provided on a straight line passing through the central axis, facing each other across the central axis. The two guide grooves 21 are disposed at 180° intervals in the circumferential direction so as to correspond to the positions of the multiple claw pieces 12.

[0019] The inner peripheral surface of the guide groove 21 is curved so as to form a part of an arc about the central axis. The claw pieces 12 and the wing parts 13 of the core chuck member 10, which will be described later, are positioned within the guide groove 21, and the engaging ridge parts 16, which will be described later, engage with the claw pieces 12 and the wing parts 13.

[0020] 1(a), the guide groove 21 is formed up to the rear end surface 22a of the front tube 20. The guide groove 21 is formed up to just before the front end opening 20b of the through hole 20a without reaching the front end opening 20b.

[0021] The inner peripheral surface of the wall portion 22 is curved so as to form a part of an arc about the central axis. The wall portion 22 supports the outer peripheral surface of the stick-shaped cosmetic material A. As will be described in detail later, the wall portion 22 is provided so as to support the outer peripheral surface of the stick-shaped cosmetic material A between a pair of wing portions 13 each extending from adjacent claw pieces 12.

[0022] The base tube 30 is a member formed in a bottomed cylindrical shape that houses the core chuck member 10 and has an accommodation hole 33 into which the fitting portion 27 of the front tube 20 is fitted and into which the female threaded tube 40 is inserted. The accommodation hole 33 is provided with an annular fitting recess 32 into which the fitting protrusion 25 of the front tube 20 is fitted.

[0023] As shown in Figures 2(a) and 2(b), the core chuck member 10 has a cosmetic material holding portion 11 that holds the outer peripheral surface of the rod-shaped cosmetic material A, and a base portion 15 on which the cosmetic material holding portion 11 is erected.

[0024] A stick-shaped cosmetic material A that is soft, has a small diameter, and has a circular cross-sectional shape is loaded into the cosmetic material holding portion 11. Here, the outside diameter of the stick-shaped cosmetic material A is about φ1.5 to 3.0 [mm].

[0025] The cosmetic material holding portion 11 comprises a number of (here two) claw pieces 12 which extend along the axial direction of the stick-shaped cosmetic material A and hold the outer peripheral surface of the stick-shaped cosmetic material A, a base portion end face 15a (see Figure 2(c)) which serves as a bottom portion which holds the bottom of the stick-shaped cosmetic material A, blade portions 13 which extend circumferentially from the claw pieces 12 along the outer peripheral surface of the stick-shaped cosmetic material A and hold the outer peripheral surface of the stick-shaped cosmetic material A, and a space portion 13c (see Figures 2(c) and 2(d)) formed behind the blade portions 13 (axially on the side of the base portion end face 15a).

[0026] As shown in Fig. 2(c), the claw piece 12 stands upright in the axial direction from the base end face 15a. The outer peripheral surface of the claw piece 12 is formed with a smaller diameter than the outer peripheral surface of the engaging ridge portion 16 of the base portion 15. The inner peripheral surface of the claw piece 12 is formed in a curved shape so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. Multiple claw pieces 12 (two in this case) are provided so as to sandwich the stick-shaped cosmetic material A.

[0027] The claw pieces 12 are provided at intervals in the circumferential direction. Specifically, two claw pieces 12 are arranged at intervals of 180° in the circumferential direction so as to correspond to the positions of the guide grooves 21.

[0028] As shown in Figures 3(a) to 3(d), the two claw pieces 12 are provided facing each other across the central axis. The claw pieces 12 are formed to have a radial thickness of about 0.60 mm. Each claw piece 12 has a tapered surface 12d that is inclined toward the tip so as to move away from the outer circumferential surface of the stick-shaped cosmetic material A.

[0029] Tapered surface 12d is provided at a position axially spaced from the tip of claw piece 12. Tapered surface 12d is inclined so that the inner diameter, which is the distance between the pair of claw pieces 12, increases toward the tip. The provision of tapered surface 12d makes it easier to insert stick-shaped cosmetic material A into cosmetic material holding portion 11, and prevents the outer periphery of the rear end of stick-shaped cosmetic material A from being scraped by claw piece 12 when inserting stick-shaped cosmetic material A.

[0030] 3(a), the portion of the hook piece 12 on the tip side of the tapered surface 12d is formed to have a diameter larger than the outer diameter of the stick-shaped cosmetic material A. Therefore, this portion does not come into contact with the stick-shaped cosmetic material A.

[0031] The base end surface 15a is provided at the axial tip of the base portion 15. The bottom surface of the stick-shaped cosmetic material A comes into contact with the base end surface 15a.

[0032] The wing portions 13 extend from both circumferential ends of the claw piece 12. The wing portions 13 extend along the circumferential direction of the stick-shaped cosmetic material A. A pair of circumferentially opposing wing portions 13 are not connected to each other in the circumferential direction and are spaced apart from each other.

[0033] The wing portion 13 is formed on a part of the axial direction of the claw piece 12. That is, the wing portion 13 extends shorter than the claw piece 12. The wing portion 13 is provided at a position spaced from the base portion end surface 15a in the axial direction.

[0034] In this way, the cosmetic material holding portion 11 of the core chuck member 10 has wing portions 13 that extend circumferentially from the claw pieces 12 along the outer circumferential surface of the stick-shaped cosmetic material A and hold the outer circumferential surface of the stick-shaped cosmetic material A. As a result, even if the number of claw pieces 12 is reduced, the provision of the wing portions 13 ensures sufficient holding force for holding the stick-shaped cosmetic material A. Therefore, even if the number of claw pieces 12 is reduced, the stick-shaped cosmetic material A can be held stably, and the stick-shaped cosmetic material A can be prevented from slipping out of the core chuck member 10.

[0035] 3(c) and 3(d), the inner peripheral surface of the wing portion 13 is formed in a curved shape so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. That is, the inner peripheral surfaces of the wing portion 13 and the claw piece 12 are formed continuously so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. As a result, the inner peripheral surfaces of the wing portion 13 and the claw piece 12 are in close contact with the stick-shaped cosmetic material A over a wide circumferential range, so that the stick-shaped cosmetic material A can be held stably.

[0036] Wing portion 13 is formed of a thin film having a radial thickness of approximately 0.10 to 0.50 mm. That is, the radial thickness of wing portion 13 is smaller than that of claw piece 12. By forming wing portion 13 from a thin film, it is possible to increase the degree of adhesion to the outer periphery of stick-shaped cosmetic material A compared to the case where a thicker wing portion is used.

[0037] The blade 13 is positioned in the guide groove 21 of the front tube 20 together with the claw 12. The outer peripheral surface of the stick-shaped cosmetic material A is held by the inner peripheral surfaces of the claw 12, which has a large radial thickness, and the thin-film blade 13. Therefore, in addition to being held by the claw 12, the outer peripheral surface of the stick-shaped cosmetic material A is closely held by the thin-film blade 13 with optimal elastic holding force.

[0038] The blade portion 13 has a tapered surface 13a on the inner surface of the tip portion away from the base portion end face 15a, which slopes away from the outer surface of the stick-shaped cosmetic material A toward the tip portion, and an engagement portion 13b with which the stick-shaped cosmetic material A engages in the axial direction.

[0039] Tapered surface 13a is formed with an inclination so that the inner diameter becomes larger toward the tip. The provision of tapered surface 13a makes it easier to insert stick-shaped cosmetic material A into cosmetic material holding portion 11, and also prevents the outer periphery of the rear end portion of stick-shaped cosmetic material A from being scraped by blade portion 13 when inserting stick-shaped cosmetic material A.

[0040] The engaging portion 13b is formed on the rear end surface (the end surface on the axial side of the base portion end surface 15a) of the blade portion 13. The engaging portion 13b is provided along the circumferential direction of the stick-shaped cosmetic material A. A space portion 13c is formed behind the engaging portion 13b.

[0041] Space 13c is formed between base end face 15a and blade portion 13. By providing space 13c, the outer peripheral surface of stick-shaped cosmetic material A inserted into cosmetic material holding portion 11 bites into space 13c, thereby strengthening the engagement of stick-shaped cosmetic material A with cosmetic material holding portion 11. Therefore, even if stick-shaped cosmetic material A is about to move axially forward due to an impact or the like, the outer periphery of stick-shaped cosmetic material A gets caught in engagement portion 13b, preventing stick-shaped cosmetic material A from coming out.

[0042] Here, a thin stick-shaped cosmetic material A is typically held by four claw pieces. In contrast to this, in this embodiment, the thin stick-shaped cosmetic material A is held by two claw pieces 12. When reducing the number of claw pieces 12 from four to two in this manner, it is common to increase the circumferential width of the claw pieces to increase the area that holds the outer circumferential surface of the stick-shaped cosmetic material A in order to maintain the same holding force as when four claw pieces are provided.

[0043] In contrast, in this embodiment, the circumferential width of claw piece 12 remains the same as when four claw pieces are provided, and thin-film wing portions 13 are provided. As a result, even if the number of claw pieces 12 is reduced from four to two, it is possible to maintain the same holding force as when four claw pieces are provided.

[0044] The elasticity of the wing portion 13 can be adjusted by changing the radial thickness (outer diameter dimension) of the wing portion 13. For example, as the thickness of the wing portion 13 decreases, the elasticity of the wing portion 13 increases. In addition, the holding area of ​​the outer peripheral surface of the stick-shaped cosmetic material A can be adjusted by changing the circumferential width of the wing portion 13. Therefore, by simply changing the radial thickness and circumferential width of the wing portion 13 according to the characteristics of the stick-shaped cosmetic material (soft or hard, thin or thick, etc.), it is possible to provide an optimal holding force for each stick-shaped cosmetic material with different characteristics. Therefore, regardless of the characteristics of the stick-shaped cosmetic material, even if the number of claw pieces 12 is small, the stick-shaped cosmetic material can be prevented from slipping out of the cosmetic material holding portion 11.

[0045] A wall-like portion 22 along which the outer circumferential surface of the stick-shaped cosmetic material A slides in the axial direction is provided in the through hole 20a of the leading tube 20. When the core chuck member 10 is assembled to the leading tube 20, the claw pieces 12 and the wing portions 13 are positioned within the guide grooves 21, as shown in FIG. 1(b). At this time, the outer diameter of the wing portions 13 is formed to be slightly larger than the inner diameter of the wall-like portion 22.

[0046] As described above, the number of claw pieces 12 is reduced from four to two while maintaining the same circumferential width as when four claw pieces are provided. Accordingly, the number of guide grooves 21 can also be reduced from four to two, although it is necessary to add the circumferential width of the blade portion 13 to the circumferential width of the claw pieces 12. Therefore, all parts of the through hole 20a except for the guide grooves 21 become the wall-like portions 22, and the area at which the clearance between the wall-like portions 22 and the outer peripheral surface of the stick-shaped cosmetic material A can be minimized can be made larger than before.

[0047] Therefore, even if the stick-shaped cosmetic material A tilts when the core chuck member 10 advances and retreats, the angle of tilt is small because the area that can minimize the clearance is large. Therefore, the wall-like portion 22 can constantly support the outer circumferential surface of the stick-shaped cosmetic material A along the axial direction with a sufficient area, preventing breakage of the core due to tilting of the stick-shaped cosmetic material A and stabilizing the advancement and retreat of the stick-shaped cosmetic material A. Therefore, even if the stick-shaped cosmetic material A is extremely thin and soft and has a long payout stroke that makes it prone to breakage, breakage of the core due to tilting of the stick-shaped cosmetic material A can be prevented over the entire length from the retreat limit to the advance limit of the core chuck member 10.

[0048] As shown in Figures 2(a) and 2(b), the base portion 15 has an engagement rib portion 16 that circumferentially engages with the guide groove 21, and a male thread portion 17 that is formed continuously from the engagement rib portion 16 in the axial direction.

[0049] The engagement rib portion 16 is formed on the outer periphery of the portion between the base end face 15a on which the claw piece 12 is erected and the male thread portion 17. The engagement rib portion 16 is formed linearly along the axial direction. The engagement rib portion 16 engages with a guide groove 21 of the front tube 20, thereby restricting the relative rotation in the circumferential direction between the front tube 20 and the core chuck member 10. A groove portion is formed between adjacent engagement ribs 16 up to the end face 19. The end face 19 determines the forward movement limit of the core chuck member 10 when in contact with a rear end face 22a (see FIG. 1(a)) of a wall portion 22 in the front tube 20.

[0050] The male thread portions 17 are provided in a plurality of positions so as to protrude from the engaging rib portion 16 in the axial direction to the outer periphery of a portion formed to have a smaller diameter than the engaging rib portion 16. The male thread portions 17 are provided at a plurality of positions (two positions in this case) in the circumferential direction and at a plurality of positions in the axial direction. The male thread portions 17 are screwed into the female thread portion 43 (see FIG. 1(a)) of the female thread tube 40.

[0051] 1(a), the female threaded tube 40 is a tubular member made of resin and formed with a female threaded portion 43 that is threadedly engaged with the male threaded portion 17 of the core chuck member 10 and penetrates therethrough in the axial direction. The female threaded tube 40 has a rear end surface 44 that abuts against the step portion 35 of the base tube 30 when inserted into the base tube 30, and a front end surface 42 that abuts against the rear end surface 22a of the front tube 20 when the front tube 20 is assembled to the base tube 30.

[0052] A plurality of axially extending vertical ribs (not shown) are formed at equal intervals in the circumferential direction on the outer circumferential surface of the female thread tube 40. The vertical ribs engage with knurls (not shown) formed on the inner circumferential surface of the base tube 30 and function as a rotation stopper that prevents the female thread tube 40 from rotating relative to the base tube 30.

[0053] When the leading tube 20 and the base tube 30 are rotated relative to each other in a state in which the male thread portion 17 of the core chuck member 10 is screwed into the female thread portion 43 of the female thread tube 40, the core chuck member 10 rotates integrally with the leading tube 20, and the female thread tube 40 rotates integrally with the base tube 30, so that the core chuck member 10 and the base tube 30 rotate relative to each other. As a result, the male thread portion 17 of the core chuck member 10 rotates relative to the female thread portion 43, so that the core chuck member 10 moves relative to the female thread tube 40 in the axial direction. That is, a payout mechanism is formed that advances and retreats the rod-shaped cosmetic material A held by the core chuck member 10 from the tip opening 20b of the through hole 20a of the leading tube 20 by the relative rotation between the leading tube 20 and the base tube 30.

[0054] In this way, in the dispensing container 1, the female threaded tube 40 and the core chuck member 10 form a dispensing mechanism that dispensing the rod-shaped cosmetic material A in the axial direction, and when the front tube 20 and the base tube 30 are rotated relative to each other, the core chuck member 10 moves axially forward and backward within the front tube 20 and the base tube 30, and the rod-shaped cosmetic material A also moves forward and backward in accordance with the movement of the core chuck member 10.

[0055] Specifically, when the user rotates the leading tube 20 and the base tube 30 relative to each other in the forward direction, the core chuck member 10 moves axially toward the tip opening 20b of the leading tube 20, advancing the stick-shaped cosmetic material A. This causes the stick-shaped cosmetic material A to be fed out from the tip opening 20b. On the other hand, when the user rotates the leading tube 20 and the base tube 30 relative to each other in the reverse direction, the core chuck member 10 moves in the reverse direction, retracting the stick-shaped cosmetic material A. This causes the stick-shaped cosmetic material A to be fed back. The retraction limit of the core chuck member 10 is determined by the rear end face of the core chuck member 10 abutting against the bottom face of the base tube 30.

[0056] <First Modification> Next, a core chuck member 210 as a stick-shaped cosmetic material holding member according to a first modified example of the first embodiment of the present invention will be described with reference to Fig. 4. In each of the following modified examples, the same components as those in the above-mentioned embodiment are denoted by the same reference numerals, and duplicated descriptions will be omitted as appropriate.

[0057] Figure 4 is a diagram showing a core chuck member 210 as a stick-shaped cosmetic material holding member in a dispensing container 1 according to a first modified example of the first embodiment of the present invention, where (a) is a front view, (b) is a side view, (c) is a plan view showing the state before a stick-shaped cosmetic material A is inserted, (d) is a cross-sectional view at the same position as Figure 1(b), and (e) is a cross-sectional view along the IVE-IVE line in Figure 4(b) with a stick-shaped cosmetic material A inserted.

[0058] The core chuck member 210 according to the first modified example differs from the above-described first embodiment in that the radial thickness of the wing portions 213 is the same as that of the claw pieces 12.

[0059] As shown in Figures 4(a) and 4(b), the core chuck member 210 has a cosmetic material holding portion 211 that holds the outer peripheral surface of the rod-shaped cosmetic material A, and a base portion 15 on which the cosmetic material holding portion 211 is erected.

[0060] The cosmetic material holding portion 211 comprises multiple (here, two) claw pieces 12 which extend along the axial direction of the stick-shaped cosmetic material A and hold the outer peripheral surface of the stick-shaped cosmetic material A, a base portion end face 15a which serves as a bottom portion which holds the bottom of the stick-shaped cosmetic material A, blade portions 213 which extend circumferentially from the claw pieces 12 along the outer peripheral surface of the stick-shaped cosmetic material A and hold the outer peripheral surface of the stick-shaped cosmetic material A, and a space portion 213c formed rear of the blade portions 213 (axially toward the base portion end face 15a).

[0061] The wing portions 213 extend from both circumferential ends of the claw piece 12. The wing portions 213 extend along the circumferential direction of the stick-shaped cosmetic material A. A pair of circumferentially opposing wing portions 213 are not connected to each other in the circumferential direction and are provided with a gap between them.

[0062] The wing portion 213 is formed on a part of the axial direction of the claw piece 12. That is, the wing portion 213 extends shorter than the claw piece 12. The wing portion 213 is provided at a position spaced apart from the base portion end surface 15a in the axial direction.

[0063] In this way, the cosmetic material holding portion 211 of the core chuck member 210 has wing portions 213 that extend circumferentially from the claw pieces 12 along the outer circumferential surface of the stick-shaped cosmetic material A and hold the outer circumferential surface of the stick-shaped cosmetic material A. As a result, even if the number of claw pieces 12 is reduced, the provision of the wing portions 213 ensures sufficient holding force for holding the stick-shaped cosmetic material A. Therefore, even if the number of claw pieces 12 is reduced, the stick-shaped cosmetic material A can be held stably, and the stick-shaped cosmetic material A can be prevented from slipping out of the core chuck member 210.

[0064] As shown in Figures 4(c), 4(d), and 4(e), the inner peripheral surface of the wing portion 213 is formed in a curved shape so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. That is, the inner peripheral surfaces of the wing portion 213 and the claw piece 12 are formed continuously so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. As a result, the inner peripheral surfaces of the wing portion 213 and the claw piece 12 come into close contact with the stick-shaped cosmetic material A over a wide circumferential range, so that the stick-shaped cosmetic material A can be stably held.

[0065] The blade portion 213 is formed to have a radial thickness of about 0.60 mm. That is, the blade portion 213 has the same radial thickness as the claw piece 12. The outer diameter of the blade portion 213 is larger than the inner diameter of the wall portion 22.

[0066] 4(d), the wing portions 213 are positioned in the guide grooves 21 of the front tube 20 together with the claw pieces 12. The outer peripheral surface of the stick-shaped cosmetic material A is held by the inner peripheral surfaces of the claw pieces 12 and the wing portions 213.

[0067] As shown in Figures 4(a) and 4(b), the blade portion 213 has a tapered surface 213a on the inner surface of the tip portion away from the base portion end face 15a, which slopes away from the outer surface of the stick-shaped cosmetic material A toward the tip portion, and an engagement portion 213b with which the stick-shaped cosmetic material A engages in the axial direction.

[0068] Tapered surface 213a is formed with an inclination so that the inner diameter becomes larger toward the tip. Providing tapered surface 213a makes it easier to insert stick-shaped cosmetic material A into cosmetic material holding portion 211, and prevents the outer periphery of the rear end portion of stick-shaped cosmetic material A from being scraped by blade portion 213 when inserting stick-shaped cosmetic material A.

[0069] The engagement portion 213b is formed on the rear end surface (the end surface on the axial side of the base portion end surface 15a) of the blade portion 213. The engagement portion 213b is provided along the circumferential direction of the stick-shaped cosmetic material A. A space portion 213c is formed behind the engagement portion 213b.

[0070] The space 213c is formed between the base end face 15a and the blade portion 213. By providing the space 213c, the outer peripheral surface of the stick-shaped cosmetic material A inserted into the cosmetic material holding portion 211 bites into the space 213c, thereby strengthening the engagement of the stick-shaped cosmetic material A with the cosmetic material holding portion 211. Therefore, even if the stick-shaped cosmetic material A is about to move axially forward due to an impact or the like, the outer periphery of the stick-shaped cosmetic material A gets caught in the engaging portion 213b, preventing the stick-shaped cosmetic material A from coming out.

[0071] Because the wing portions 213 have the same thickness as the claw pieces 12, the engaging portions 213b are larger in the radial direction than the engaging portions 13b of the first embodiment, and the area of ​​the engaging portions 213b is also larger. Therefore, even if the outer peripheral surface of the stick-shaped cosmetic material A inserted into the cosmetic material holding portion 211 bites into the space 213c and the stick-shaped cosmetic material A is about to move axially forward due to an impact or the like, the area over which the outer peripheral surface of the stick-shaped cosmetic material A catches on the engaging portions 213b of the wing portions 213 becomes larger, further improving the effect of preventing the stick-shaped cosmetic material A from falling out.

[0072] <Second Modification> Next, a core chuck member 410 as a stick-shaped cosmetic material holding member according to a second modified example of the first embodiment of the present invention will be described with reference to FIG.

[0073] FIG. 5 is a diagram showing a core chuck member 410 according to a second modified example of the first embodiment of the present invention, where (a) is a front view and (b) is a side view.

[0074] A core chuck member 410 according to this second modified example differs from the above-described first embodiment in that a wing portion 413 has a first wing portion 413a and a second wing portion 413b.

[0075] As shown in Figures 5(a) and 5(b), the core chuck member 410 has a cosmetic material holding portion 411 that holds the outer peripheral surface of the rod-shaped cosmetic material A, and a base portion 15 on which the cosmetic material holding portion 411 is erected.

[0076] The cosmetic material holding portion 411 comprises multiple (here, two) claw pieces 12 which extend along the axial direction of the stick-shaped cosmetic material A and hold the outer peripheral surface of the stick-shaped cosmetic material A, a base portion end face 15a which serves as a bottom portion which holds the bottom of the stick-shaped cosmetic material A, a blade portion 413 which extends circumferentially from the claw pieces 12 along the outer peripheral surface of the stick-shaped cosmetic material A and holds the outer peripheral surface of the stick-shaped cosmetic material A, and a first space portion 413c and a second space portion 413d formed rearward of the blade portion 413 (axially toward the base portion end face 15a).

[0077] The blade portion 413 has a first blade portion 413a that is located axially away from the base portion end face 15a and forms a first space portion 413c between itself and the base portion end face 15a, and a second blade portion 413b that is located axially away from the first blade portion 413a and forms a second space portion 413d between itself and the first blade portion 413a.

[0078] The first blade portions 413a extend from both circumferential ends of the claw piece 12. The first blade portions 413a extend along the circumferential direction of the stick-shaped cosmetic material A. A pair of first blade portions 413a facing each other in the circumferential direction are not connected to each other in the circumferential direction and are provided with a gap between them.

[0079] The second blade portions 413b extend from both circumferential ends of the claw piece 12. The second blade portions 413b extend along the circumferential direction of the stick-shaped cosmetic material A. A pair of second blade portions 413b facing each other in the circumferential direction are not connected to each other in the circumferential direction and are provided with a gap between them.

[0080] The first blade portion 413a and the second blade portion 413b are formed in a portion of the axial direction of the claw piece 12. That is, the first blade portion 413a and the second blade portion 413b extend shorter than the claw piece 12. The first blade portion 413a is provided at a position spaced apart in the axial direction from the base portion end surface 15a, and the second blade portion 413b is provided at a position further spaced apart in the axial direction from the first blade portion 413a.

[0081] In this way, the cosmetic material holding portion 411 of the core chuck member 410 has a first wing portion 413a and a second wing portion 413b that extend circumferentially from the claw pieces 12 along the outer circumferential surface of the stick-shaped cosmetic material A and hold the outer circumferential surface of the stick-shaped cosmetic material A. As a result, even if the number of claw pieces 12 is reduced, the provision of the first wing portion 413a and the second wing portion 413b ensures sufficient holding force for holding the stick-shaped cosmetic material A. Therefore, even if the number of claw pieces 12 is reduced, the stick-shaped cosmetic material A can be held stably, and the stick-shaped cosmetic material A can be prevented from slipping out of the core chuck member 410.

[0082] The inner peripheral surfaces of the first and second blade portions 413a and 413b are curved to fit the outer peripheral surface of the stick-shaped cosmetic material A. That is, the inner peripheral surfaces of the first and second blade portions 413a and 413b and the inner peripheral surface of the claw piece 12 are continuously formed to fit the outer peripheral surface of the stick-shaped cosmetic material A. As a result, the inner peripheral surfaces of the first and second blade portions 413a and 413b and the inner peripheral surface of the claw piece 12 are in close contact with the stick-shaped cosmetic material A over a wide circumferential range, so that the stick-shaped cosmetic material A can be stably held.

[0083] The first and second blades 413a and 413b are formed of a thin film having a radial thickness of approximately 0.10 to 0.50 mm. That is, the first and second blades 413a and 413b have a radial thickness smaller than that of the claw piece 12. By forming the first and second blades 413a and 413b of a thin film, the degree of adhesion to the outer periphery of the stick-shaped cosmetic material A can be increased compared to the case where thicker blades are used.

[0084] The first blade portion 413a and the second blade portion 413b are positioned in the guide groove 21 of the front tube 20 together with the claw piece 12. The outer peripheral surface of the stick-shaped cosmetic material A is held by the inner peripheral surfaces of the claw piece 12 and the first blade portion 413a and the second blade portion 413b.

[0085] The provision of the first blade portion 413a and the second blade portion 413b makes it possible to hold the outer peripheral surface of the stick-shaped cosmetic material A longer in the axial direction with optimal elastic holding force compared to the case in which only the blade portions 13 are provided as in the first embodiment, and increases the holding area of ​​the stick-shaped cosmetic material A. This further strengthens the holding force, making it possible to prevent the stick-shaped cosmetic material A from slipping out of the cosmetic material holding portion 411.

[0086] The first blade portion 413a has a first engagement portion 413e with which the stick-shaped cosmetic material A engages in the axial direction.

[0087] The second blade portion 413b has a tapered surface 13a on the inner surface of the tip portion away from the base portion end face 15a, which slopes away from the outer surface of the stick-shaped cosmetic material A toward the tip portion, and a second engagement portion 413f with which the stick-shaped cosmetic material A engages in the axial direction.

[0088] The first engagement portion 413e is formed on the rear end surface of the first blade portion 413a (the end surface on the axial side of the base portion end surface 15a). The first engagement portion 413e is provided along the circumferential direction of the stick-shaped cosmetic material A. A first space portion 413c is formed behind the first engagement portion 413e.

[0089] The second engagement portion 413f is formed on the rear end surface of the second blade portion 413b (the end surface on the axial side of the base portion end surface 15a). The second engagement portion 413f is provided along the circumferential direction of the stick-shaped cosmetic material A. A second space portion 413d is formed behind the second engagement portion 413f.

[0090] That is, first engagement portion 413e and second engagement portion 413f are formed on the rear end surface of first blade portion 413a and the rear end surface of second blade portion 413b, respectively.

[0091] The first space 413c is formed between the base end surface 15a and the first blade 413a. The second space 413d is formed between the first blade 413a and the second blade 413b. By providing the first space 413c and the second space 413d, the outer peripheral surface of the stick-shaped cosmetic material A inserted into the cosmetic material holding part 411 bites into the first space 413c and the second space 413d, thereby strengthening the engagement of the stick-shaped cosmetic material A with the cosmetic material holding part 411. Therefore, even if the stick-shaped cosmetic material A is about to move axially forward due to an impact or the like, the outer periphery of the stick-shaped cosmetic material A is caught by the first engagement part 413e and the second engagement part 413f, so that the stick-shaped cosmetic material A is prevented from coming off.

[0092] <Third Modification> Next, a core chuck member 510 as a stick-shaped cosmetic material holding member according to a third modified example of the first embodiment of the present invention will be described with reference to FIG.

[0093] FIG. 6 is a diagram showing a core chuck member 510 according to a third modified example of the first embodiment of the present invention, where (a) is a front view and (b) is a side view.

[0094] A core chuck member 510 according to the third modified example differs from the first embodiment described above in that the claw piece 12 has an expansion portion 512a.

[0095] As shown in Figures 6(a) and 6(b), the core chuck member 510 has a cosmetic material holding portion 511 that holds the outer peripheral surface of the rod-shaped cosmetic material A, and a base portion 15 on which the cosmetic material holding portion 511 is erected.

[0096] The cosmetic material holding portion 511 comprises multiple (here, two) claw pieces 12 which extend along the axial direction of the stick-shaped cosmetic material A and hold the outer peripheral surface of the stick-shaped cosmetic material A, a base portion end face 15a which serves as a bottom portion which holds the bottom of the stick-shaped cosmetic material A, blade portions 513 which extend circumferentially from the claw pieces 12 along the outer peripheral surface of the stick-shaped cosmetic material A and hold the outer peripheral surface of the stick-shaped cosmetic material A, and a space portion 513c formed rear of the blade portions 513 (axially toward the base portion end face 15a).

[0097] The claw piece 12 has an extension portion 512a extending in the axial direction from the base portion end surface 15a.

[0098] The extensions 512a extend from both circumferential ends of the claw piece 12. The extensions 512a expand in the circumferential direction along the outer circumferential surface of the stick-shaped cosmetic material A. A pair of extensions 512a facing each other in the circumferential direction are not connected to each other in the circumferential direction and are provided with a gap between them. The extensions 512a are formed to have the same radial thickness as the claw piece 12.

[0099] The extension portion 512a is formed in a part of the axial direction of the claw piece 12. That is, the extension portion 512a is provided so as to extend shorter than the claw piece 12.

[0100] The inner peripheral surface of the extension portion 512a is formed in a curved shape so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. That is, the inner peripheral surface of the extension portion 512a and the inner peripheral surface of the claw piece 12 are formed continuously so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. As a result, the inner peripheral surface of the extension portion 512a extending axially from the base portion end face 15a and the inner peripheral surface of the claw piece 12 come into close contact with the stick-shaped cosmetic material A over a wide range in the circumferential direction, making it possible to stably hold the rear portion of the stick-shaped cosmetic material A in particular.

[0101] The extension portion 512a is positioned in the guide groove 21 of the front tube 20 together with the claw piece 12. The outer peripheral surface of the stick-shaped cosmetic material A is held by the inner peripheral surfaces of the claw piece 12 and the extension portion 512a.

[0102] The blade portion 513 is provided at a position axially spaced from the extension portion 512a to form a space portion 513c between the blade portion 513 and the extension portion 512a.

[0103] The wing portions 513 extend from both circumferential ends of the claw piece 12. The wing portions 513 extend along the circumferential direction of the stick-shaped cosmetic material A. A pair of circumferentially opposing wing portions 513 are not connected to each other in the circumferential direction and are provided with a gap between them.

[0104] The wing portion 513 is formed on a part of the axial direction of the claw piece 12. That is, the wing portion 513 extends shorter than the claw piece 12.

[0105] In this way, the cosmetic material holding portion 511 of the core chuck member 510 has wing portions 513 that extend circumferentially from the claw pieces 12 along the outer circumferential surface of the stick-shaped cosmetic material A and hold the outer circumferential surface of the stick-shaped cosmetic material A. As a result, even if the number of claw pieces 12 is reduced, the provision of the wing portions 513 ensures sufficient holding force for holding the stick-shaped cosmetic material A. Therefore, even if the number of claw pieces 12 is reduced, the stick-shaped cosmetic material A can be held stably, and the stick-shaped cosmetic material A can be prevented from slipping out of the core chuck member 510.

[0106] The inner peripheral surface of the wing portion 513 is formed in a curved shape so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. That is, the inner peripheral surfaces of the wing portion 513 and the claw piece 12 are formed continuously so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. As a result, the inner peripheral surfaces of the wing portion 513 and the claw piece 12 are in close contact with the stick-shaped cosmetic material A over a wide circumferential range, so that the stick-shaped cosmetic material A can be stably held.

[0107] The wing portion 513 is formed of a thin film having a radial thickness of about 0.10 to 0.50 mm. That is, the wing portion 513 has a smaller radial thickness than the claw piece 12 and the extension portion 512a. By forming the wing portion 513 from a thin film, it is possible to increase the degree of adhesion to the outer periphery of the stick-shaped cosmetic material A compared to the case where a thicker wing portion is used.

[0108] The wing portion 513 has the same circumferential width as the expansion portion 512a. The wing portion 513 is positioned in the guide groove 21 of the front tube 20 together with the claw piece 12. The outer peripheral surface of the stick-shaped cosmetic material A is held by the inner peripheral surfaces of the claw piece 12 and the wing portion 513.

[0109] The provision of the wing portions 513 makes it possible to elastically hold the outer peripheral surface of the stick-shaped cosmetic material A with optimal holding force, thereby increasing the holding area of ​​the stick-shaped cosmetic material A. This further strengthens the holding force, making it possible to prevent the stick-shaped cosmetic material A from slipping out of the cosmetic material holding portion 511.

[0110] The blade portion 513 has an engagement portion 513d with which the stick-shaped cosmetic material A engages in the axial direction.

[0111] The engaging portion 513d is formed on the rear end surface (the end surface on the axial side of the base portion end surface 15a) of the blade portion 513. The engaging portion 513d is provided along the circumferential direction of the stick-shaped cosmetic material A. A space portion 513c is formed behind the engaging portion 513d.

[0112] The space 513c is formed between the extension portion 512a and the blade portion 513. By providing the space 513c, the outer peripheral surface of the stick-shaped cosmetic material A inserted into the cosmetic material holding portion 511 bites into the space 513c, thereby strengthening the engagement of the stick-shaped cosmetic material A with the cosmetic material holding portion 511. Therefore, even if the stick-shaped cosmetic material A is about to move axially forward due to an impact or the like, the outer periphery of the stick-shaped cosmetic material A gets caught in the engagement portion 513d, preventing the stick-shaped cosmetic material A from coming out.

[0113] <Fourth Modification> Next, a core chuck member 110 as a stick-shaped cosmetic material holding member according to a fourth modified example of the first embodiment of the present invention will be described with reference to FIG.

[0114] FIG. 7 is a diagram showing a core chuck member 110 according to a fourth modified example of the first embodiment of the present invention, where (a) is a front view and (b) is a side view.

[0115] The core chuck member 110 according to the fourth modified example differs from the above-described first embodiment in that the claw pieces 112 have cutout portions 112b.

[0116] As shown in Figures 7(a) and 7(b), the core chuck member 110 has a cosmetic material holding portion 111 that holds the outer peripheral surface of the rod-shaped cosmetic material A, and a base portion 15 on which the cosmetic material holding portion 111 is erected.

[0117] The cosmetic material holding portion 111 comprises multiple (here, two) claw pieces 112 which extend along the axial direction of the stick-shaped cosmetic material A and hold the outer peripheral surface of the stick-shaped cosmetic material A, a base portion end face 15a which serves as a bottom portion which holds the bottom of the stick-shaped cosmetic material A, blade portions 113 which extend circumferentially from the claw pieces 112 along the outer peripheral surface of the stick-shaped cosmetic material A and hold the outer peripheral surface of the stick-shaped cosmetic material A, and a space portion 113c formed rear of the blade portions 113 (axially toward the base portion end face 15a).

[0118] The claw pieces 112 stand upright in the axial direction from the base end face 15a. The outer peripheral surface of the claw pieces 112 is formed with a smaller diameter than the outer peripheral surface of the engaging ridge portion 16 of the base portion 15. The inner peripheral surface of the claw pieces 112 is formed in a curved shape so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. Multiple claw pieces 112 (two in this case) are provided so as to sandwich the stick-shaped cosmetic material A.

[0119] The claw pieces 112 are provided at intervals in the circumferential direction. Specifically, two claw pieces 112 are arranged at intervals of 180° in the circumferential direction so as to correspond to the positions of the guide grooves 21.

[0120] The two claw pieces 112 are provided so as to face each other across the central axis. The claw pieces 112 are formed to have a radial thickness of approximately 0.60 [mm]. Each claw piece 112 has a tapered surface 12d that slopes away from the outer circumferential surface of the stick-shaped cosmetic material A toward the tip, and a notch portion 112b that is formed by cutting out a portion of both ends in the circumferential direction.

[0121] The notch portion 112b is provided along the axial direction between the base portion end face 15a and the blade portion 113. The notch portion 112b is cut out to a greater extent in the circumferential direction as it moves away from the base portion end face 15a in the axial direction. That is, the notch portion 112b is formed obliquely along the axial direction.

[0122] The blade portion 113 is provided at a position axially spaced from the base portion end surface 15a, and forms a space portion 113c between the blade portion 113 and the base portion end surface 15a.

[0123] The wing portions 113 extend from both circumferential ends of the claw pieces 112. The wing portions 113 extend along the circumferential direction of the stick-shaped cosmetic material A. A pair of circumferentially opposing wing portions 113 are not connected to each other in the circumferential direction and are provided with a gap between them.

[0124] The wing portion 113 is formed on a part of the axial direction of the claw piece 112. That is, the wing portion 113 extends shorter than the claw piece 112.

[0125] In this way, the cosmetic material holding portion 111 of the core chuck member 110 has wing portions 113 that extend circumferentially from the claw pieces 112 along the outer circumferential surface of the stick-shaped cosmetic material A and hold the outer circumferential surface of the stick-shaped cosmetic material A. As a result, even if the number of claw pieces 112 is reduced, the provision of the wing portions 113 ensures sufficient holding force for holding the stick-shaped cosmetic material A. Therefore, even if the number of claw pieces 112 is reduced, the stick-shaped cosmetic material A can be held stably, and the stick-shaped cosmetic material A can be prevented from slipping out of the core chuck member 110.

[0126] The inner peripheral surface of the wing portion 113 is formed in a curved shape so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. That is, the inner peripheral surfaces of the wing portion 113 and the claw piece 112 are formed continuously so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A. As a result, the inner peripheral surfaces of the wing portion 113 and the claw piece 112 come into close contact with the stick-shaped cosmetic material A over a wide circumferential range, so that the stick-shaped cosmetic material A can be held stably.

[0127] Wing portion 113 is formed of a thin film having a radial thickness of approximately 0.10 to 0.50 mm. In other words, the radial thickness of wings 113 is smaller than that of claw pieces 112. By forming wings 113 from a thin film, the degree of adhesion to the outer periphery of stick-shaped cosmetic material A can be increased compared to the case where thick wings are used.

[0128] The blade portion 113 is positioned in the guide groove 21 of the front tube 20 together with the claw piece 112. The outer peripheral surface of the stick-shaped cosmetic material A is held by the inner peripheral surfaces of the claw piece 112 and the blade portion 113.

[0129] The provision of the wing portions 113 makes it possible to elastically hold the outer peripheral surface of the stick-shaped cosmetic material A with optimal holding force, thereby increasing the holding area of ​​the stick-shaped cosmetic material A. This further strengthens the holding force, making it possible to prevent the stick-shaped cosmetic material A from slipping out of the cosmetic material holding portion 111.

[0130] The blade portion 113 has an engagement portion 113b with which the stick-shaped cosmetic material A engages in the axial direction. The claw piece 112 has an engagement portion 112c with which the stick-shaped cosmetic material A engages in the axial direction.

[0131] Engagement portion 113b is formed on the rear end face of blade portion 113 (end face on the axial side of base portion end face 15a). Engagement portion 113b is provided along the circumferential direction of stick-shaped cosmetic material A. Similarly, engagement portion 112c is formed on the rear end face (end face on the axial side of base portion end face 15a) facing notch portion 112b of claw piece 112. Engagement portion 112c is provided along the circumferential direction of stick-shaped cosmetic material A. A space portion 113c is formed behind engagement portions 113b and 112c.

[0132] Space 113c is formed between base end face 15a and blade portion 113. By providing space 113c, the outer peripheral surface of stick-shaped cosmetic material A inserted into cosmetic material holding portion 111 bites into space 113c, thereby strengthening the engagement of stick-shaped cosmetic material A with cosmetic material holding portion 111. Therefore, even if stick-shaped cosmetic material A is about to move axially forward due to an impact or the like, the outer periphery of stick-shaped cosmetic material A gets caught in engaging portions 113b and 112c, preventing stick-shaped cosmetic material A from coming out.

[0133] In this way, in the fourth modified example, by providing the notch 112b, the space 113c is formed not only on the rear end surface of the blade 113 but also in part of the claw piece 112. This makes it possible to further strengthen the engagement of the stick-shaped cosmetic material A with the cosmetic material holding portion 111, and prevents the stick-shaped cosmetic material A from slipping out.

[0134] According to the above-described first embodiment, the following effects are achieved.

[0135] The dispensing container 1 has a cosmetic material holding portion 11, 111, 211, 411, 511 that holds the outer peripheral surface of the stick-shaped cosmetic material A, and a base portion 15 on which the cosmetic material holding portion 11, 111, 211, 411, 511 is erected. The dispensing container 1 is also equipped with a core chuck member 10, 110, 210, 410, 510 that holds the stick-shaped cosmetic material A, a leading tube 20 having a through hole 20a through which the stick-shaped cosmetic material A can advance and retreat, a base tube 30 that is assembled so as to be rotatable relative to the leading tube 20, and a dispensing mechanism that advances and retreats the stick-shaped cosmetic material A held by the core chuck member 10, 110, 210, 410, 510 from the tip opening 20b of the through hole 20a of the leading tube 20 by relative rotation between the leading tube 20 and the base tube 30. has claw pieces 12, 112 which extend along the axial direction of the stick-shaped cosmetic material A and hold the outer peripheral surface of the stick-shaped cosmetic material A, a base end face 15a which holds the bottom of the stick-shaped cosmetic material A, blade portions 13, 113, 213, 413, 513 which extend circumferentially from the claw pieces 12, 112 along the outer peripheral surface of the stick-shaped cosmetic material A and hold the outer peripheral surface of the stick-shaped cosmetic material A, and space portions 13c, 113c, 213c, 413c, 413d, 513c formed behind the blade portions 13, 113, 213, 413, 513, and the through hole 20a has a guide groove 21 which guides the core chuck member 10, 110, 210, 410, 510 along the axial direction, and the claw pieces 12, 112 and the blade portions 13, 113, 213, 413, 513 are positioned in the guide groove 21.

[0136] According to the above embodiment, the blades 13, 113, 213, 413, 513 are provided extending from the claws 12, 112 in the circumferential direction along the outer circumferential surface of the stick-shaped cosmetic material A to hold the outer circumferential surface of the stick-shaped cosmetic material A, and the claws 12, 112 and the blades 13, 113, 213, 413, 513 are located in the guide grooves 21 of the through holes 20a. Therefore, even if the number of the claws 12, 112 is reduced, the blades 13, 113, 213, 413, 513 are provided, so that a sufficient holding force for holding the stick-shaped cosmetic material A can be ensured. Therefore, even if the number of the claws 12, 112 is reduced, the stick-shaped cosmetic material A can be stably held, and the stick-shaped cosmetic material A can be prevented from slipping out of the core chuck member 10, 110, 210, 410, 510.

[0137] Furthermore, the blade portions 13, 113, 213, 413, and 513 have engagement portions 13b, 113b, 213b, 413e, 413f, and 513d with which the stick-shaped cosmetic material A engages in the axial direction.

[0138] According to this configuration, even if the stick-shaped cosmetic material A is about to move axially forward due to an impact or the like, the outer periphery of the stick-shaped cosmetic material A will catch on the engagement portions 13b, 113b, 213b, 413e, 413f, 513d, thereby preventing the stick-shaped cosmetic material A from coming loose.

[0139] Furthermore, the inner peripheral surfaces of the blade portions 13, 113, 213, 413, 513 and the inner peripheral surfaces of the claw pieces 12, 112 are formed continuously so as to fit along the outer peripheral surface of the stick-shaped cosmetic material A.

[0140] According to this configuration, the inner circumferential surfaces of the blade portions 13, 113, 213, 413, 513 and the inner circumferential surfaces of the claw pieces 12, 112 are in close contact with the stick-shaped cosmetic material A over the entire circumference, so that the stick-shaped cosmetic material A can be held stably.

[0141] Moreover, the blade portions 13,113,413,513 have a smaller radial thickness than the claw pieces 12,112.

[0142] According to this configuration, by forming the wing portions 13, 113, 413, 513 from thin films, it is possible to increase the degree of adhesion to the outer periphery of the stick-shaped cosmetic material A compared to the case where thicker wing portions are used.

[0143] Moreover, the blade portion 213 has the same radial thickness as the claw piece 12 .

[0144] With this configuration, because the wing portions 213 have the same thickness as the claw pieces 12, the engaging portions 213b become larger in the radial direction and also have a larger area. Therefore, even if the outer peripheral surface of the stick-shaped cosmetic material A inserted into the cosmetic material holding portion 211 bites into the space 213c and the stick-shaped cosmetic material A is about to move axially forward due to an impact or the like, the area over which the outer peripheral surface of the stick-shaped cosmetic material A catches on the engaging portions 213b of the wing portions 213 becomes larger, further improving the effect of preventing the stick-shaped cosmetic material A from falling out.

[0145] Further, the engagement portions 13b, 113b, 213b, 413e, 413f, and 513d are formed on the rear end surfaces of the blade portions 13, 113, 213, 413, and 513.

[0146] According to this configuration, the outer peripheral surface of the stick-shaped cosmetic material A inserted into the cosmetic material holding part 11 bites into the space 13c, 113c, 213c, 413c, 413d, 513c, thereby strengthening the engagement of the stick-shaped cosmetic material A with the cosmetic material holding parts 11, 111, 211, 411, 511. Therefore, even if the stick-shaped cosmetic material A is about to move axially forward due to an impact or the like, the outer peripheral surface of the stick-shaped cosmetic material A gets caught in the engaging parts 13b, 113b, 213b, 413e, 413f, 513d, preventing the stick-shaped cosmetic material A from coming out.

[0147] The claw piece 12 also has an extension portion 512a that extends in the axial direction from the base portion end surface 15a, is formed to the same thickness as the claw piece 12, and expands in the circumferential direction along the outer circumferential surface of the stick-shaped cosmetic material A.

[0148] Moreover, the blade portion 513 is provided at a position spaced apart from the extension portion 512a in the axial direction to form a space portion 513c between the blade portion 513 and the extension portion 512a.

[0149] Moreover, the blade portion 513 has a radial thickness smaller than that of the claw piece 12, and has the same circumferential width as the expansion portion 512a.

[0150] According to these configurations, a space 513c is formed between the extension portion 512a and the blade portion 513. By providing the space 513c, the outer peripheral surface of the stick-shaped cosmetic material A inserted into the cosmetic material holding portion 511 bites into the space 513c, thereby making it possible to firmly engage the stick-shaped cosmetic material A with the cosmetic material holding portion 511. Therefore, even if the stick-shaped cosmetic material A is about to move axially forward due to an impact or the like, the outer periphery of the stick-shaped cosmetic material A is caught by the engagement portion 513d of the blade portion 513, so that the stick-shaped cosmetic material A is prevented from falling out. The thin blade portion 513 increases the degree of adhesion to the outer periphery of the stick-shaped cosmetic material A, and the inner peripheral surface of the extension portion 512a, which is extended axially from the base portion end surface 15a, and the inner peripheral surface of the claw piece 12 are in close contact with the stick-shaped cosmetic material A over a wide range in the circumferential direction, so that the stick-shaped cosmetic material A can be stably held.

[0151] Furthermore, the blade portion 413 has a first blade portion 413a that is provided at a position axially away from the base portion end face 15a and forms a first space portion 413c between it and the base portion end face 15a, and a second blade portion 413b that is provided at a position axially away from the first blade portion 413a and forms a second space portion 413d between it and the first blade portion 413a, and the first engagement portion 413e and the second engagement portion 413f are formed on the rear end surface of the first blade portion 413a and the rear end surface of the second blade portion 413b, respectively.

[0152] According to this configuration, by providing the first space 413c and the second space 413d, the outer peripheral surface of the stick-shaped cosmetic material A inserted into the cosmetic material holding part 411 bites into the first space 413c and the second space 413d, thereby strengthening the engagement of the stick-shaped cosmetic material A with the cosmetic material holding part 411. Therefore, even if the stick-shaped cosmetic material A is about to move axially forward due to an impact or the like, the outer periphery of the stick-shaped cosmetic material A gets caught in the first engagement part 413e and the second engagement part 413f, preventing the stick-shaped cosmetic material A from coming out.

[0153] Furthermore, the blade portions 13, 113, 213, 413b, 513 have tapered surfaces 12d, 213a on the inner peripheral surface of the tip portion away from the base portion end surface 15a, which are inclined so as to move away from the outer peripheral surface of the stick-shaped cosmetic material A toward the tip portion.

[0154] According to this configuration, the provision of tapered surfaces 12d, 213a makes it easier to insert the stick-shaped cosmetic material A into the cosmetic material holding portion 11, 111, 211, 411, 511, and prevents the outer periphery of the rear end portion of the stick-shaped cosmetic material A from being scraped by the blade portions 13, 113, 213, 413b, 513 when inserting the stick-shaped cosmetic material A.

[0155] The through hole 20a further has a wall-like portion 22 along which the outer peripheral surface of the stick-shaped cosmetic material A slides in the axial direction.

[0156] Further, the outer diameter of the blade portions 13 , 113 , 213 , 413 , 513 is greater than the inner diameter of the wall portion 22 .

[0157] In addition, the claw pieces 12, 112 are arranged at intervals in the circumferential direction, the wing portions 13, 113, 213, 413, 513 extend from both circumferential ends of the claw pieces 12, 112, and the wall-like portion 22 is arranged to support the outer peripheral surface of the stick-shaped cosmetic material A between a pair of wing portions 13, 113, 213, 413, 513 each extending from adjacent claw pieces 12, 112.

[0158] According to these configurations, the number of claw pieces 12, 112 is reduced from four to two while the circumferential width remains the same as when four claw pieces are provided. Accordingly, the guide groove 21 can also be reduced from four to two, although it is necessary to add the circumferential width of the wing portion 13, 113, 213, 413, 513 to the circumferential width of the claw pieces 12, 112. Therefore, all parts of the through hole 20a except for the guide groove 21 become the wall-like portion 22, and the area in which the clearance between the wall-like portion 22 and the outer peripheral surface of the stick-shaped cosmetic material A can be minimized can be made larger than in the past. Therefore, even if the stick-shaped cosmetic material A tilts when the core chuck member 10, 110, 210, 410, 510 advances and retreats, the tilt angle is small because the area in which the clearance can be minimized is large. Therefore, the wall-like portion 22 can constantly support the outer peripheral surface of the stick-shaped cosmetic material A with a sufficient area along the axial direction, thereby preventing the core of the stick-shaped cosmetic material A from breaking due to tilting, and stabilizing the forward and backward movement of the stick-shaped cosmetic material A.

[0159] <Second embodiment> Next, a stick-shaped cosmetic material dispensing container (hereinafter simply referred to as "dispensing container") 301 according to a second embodiment of the present invention will be described with reference to Fig. 8 to Fig. 10. Note that the same components as those in the above-mentioned embodiment are given the same reference numerals, and duplicated descriptions will be omitted as appropriate.

[0160] Fig. 8 is a cross-sectional view of a dispensing container 301 according to a second embodiment of the present invention, where (a) is a front cross-sectional view showing a state in which the core chuck member 310 is positioned at the retraction limit, (b) is a side cross-sectional view showing a state in which the core chuck member 310 is positioned at the retraction limit, (c) is a cross-sectional view along line VIIIC-VIIIC in Fig. 8(a), and (d) is a cross-sectional view along line VIIID-VIIID in Fig. 8(a). Fig. 9 is a diagram showing the core chuck member 310, where (a) is a front view, (b) is a side view, (c) is a plan view, and (d) is an enlarged cross-sectional view showing the cosmetic material holding portion 311 of the core chuck member 310. Figure 10 is an enlarged view of the cosmetic material holding portion 311, where (a) is a front view, (b) is a side view, (c) is a cross-sectional view along line XC-XC in Figure 10(a), and (d) is a cross-sectional view along line XD-XD in Figure 10(a).

[0161] As shown in Figures 8(a) and 8(b), dispensing container 301 is a container capable of dispensing stick-shaped cosmetic material B having a substantially elliptical cross-sectional shape. Stick-shaped cosmetic material B is a molded core formed into a stick shape and is used, for example, as eyebrow pencils, eyeliners, lip liners, etc. Stick-shaped cosmetic material B is softer than stick-shaped cosmetic material A. The outer diameter of stick-shaped cosmetic material B is formed to be slightly larger than the inner diameter of cosmetic material holding portion 311, which will be described later. The ratio of the minor axis to the major axis of stick-shaped cosmetic material B is approximately 3 when the minor axis is 1.

[0162] The dispensing container 301 comprises a leading tube 320 having a through hole 320a through which the stick-shaped cosmetic material B can advance and retreat, a base tube 330 assembled to the leading tube 320 so as to be rotatable relative to the leading tube 320, a core chuck member 310 as a stick-shaped cosmetic material holding member that holds the stick-shaped cosmetic material B, and a female threaded tube 340 arranged within the base tube 330 so as not to be rotatable relative to the base tube 330.

[0163] The front tube 320 is a tubular member in which a through hole 320a is formed penetrating in the axial direction. The front tube 320 has a knob 324 which is pinched by the user, and an insertion portion 327 which is formed continuous with the knob 324 in the axial direction and is inserted into the base tube 330. The cross-sectional shape of the through hole 320a is similar to the cross-sectional shape of the stick-shaped cosmetic material B, and is formed in a substantially elliptical shape. The knob 324 is formed in a tapered shape in the axial direction so that the outer diameter gradually decreases from the insertion portion 327 side toward the tip.

[0164] On the outer circumferential surface of the fitting portion 327, there are formed an annular fitting protrusion 325 that fits into a fitting recess 332 (described later) formed in the base tube 330, and an O-ring groove 326 in which the O-ring 302 is attached. The O-ring 302 is provided in a compressed state between the front tube 320 and the base tube 330, thereby generating an appropriate resistance when the front tube 320 and the base tube 330 are rotated relative to each other. This can improve the operability of the user.

[0165] The through hole 320a extends along the axial direction and has a guide groove 321 that protrudes radially outward to guide the core chuck member 310 along the axial direction, and a first wall portion 322a and a second wall portion 322b along which the outer circumferential surface of the stick-shaped cosmetic material B slides along the axial direction. The first wall portion 322a and the second wall portion 322b constitute the wall portion 322.

[0166] 8(c) and 8(d), the guide grooves 321 are linear grooves that are spaced apart from one another in the circumferential direction (four in this example). The guide grooves 321 are spaced apart from one another in the circumferential direction so as to correspond to the positions of the claw pieces 312.

[0167] The inner peripheral surface of the guide groove 321 is curved so as to form a part of an arc about the central axis. A claw piece 312 (described later) of the core chuck member 310 is positioned in the guide groove 321, and an engaging ridge portion 316 (described later) is engaged therewith. A first wall portion 322a or a second wall portion 322b is formed between adjacent guide grooves 321.

[0168] The guide groove 321 is formed up to the rear end surface 320c of the front tube 320. The guide groove 321 is formed up to just before the front end opening 320b of the through hole 320a without reaching the front end opening 320b.

[0169] The guide grooves 321 are provided in pairs, adjacent to each other and parallel to each other. Two pairs of guide grooves 321 are provided facing each other across the central axis. The guide grooves 321 are arranged side by side along the long axis of the stick-shaped cosmetic material B.

[0170] A plurality of first wall portions 322a are provided in the circumferential direction. Here, the first wall portions 322a are provided at two locations in the circumferential direction. The first wall portions 322a are provided between a pair of guide grooves 321 adjacent in the long axis direction in the circumferential direction. The first wall portions 322a support the outer peripheral surface of the stick-shaped cosmetic material A between the blade portions 313 extending from the adjacent claw pieces 312 described below. The first wall portions 322a are provided in pairs facing each other across the central axis. The pair of first wall portions 322a are provided to sandwich the stick-shaped cosmetic material B in the short axis direction. The first wall portions 322a are not limited to a pair facing each other as long as they are capable of supporting the outer peripheral surface of the stick-shaped cosmetic material B.

[0171] A plurality of second wall portions 322b are provided in the circumferential direction. Here, the second wall portions 322b are provided at two locations in the circumferential direction. The second wall portions 322b are provided between adjacent guide grooves 321 in the short axis direction in the circumferential direction. The second wall portions 322b support the outer peripheral surface of the stick-shaped cosmetic material A between the other ends of adjacent claw pieces 312, which will be described later, where the wing portions 313 are not provided. The pair of second wall portions 322b are provided so as to face each other across the central axis. The pair of second wall portions 322b are provided so as to sandwich the stick-shaped cosmetic material B in the long axis direction. The second wall portions 322b are not limited to a pair facing each other as long as they are capable of supporting the outer peripheral surface of the stick-shaped cosmetic material B.

[0172] The base tube 330 is a member formed in a bottomed cylindrical shape that houses the core chuck member 310 and has an accommodation hole 333 into which the fitting portion 327 of the front tube 320 is fitted and into which the female thread tube 340 is inserted. The accommodation hole 333 is provided with an annular fitting recess 332 into which the fitting protrusion 325 of the front tube 320 is fitted.

[0173] As shown in Figs. 9(a) and 9(b), the core chuck member 310 includes a cosmetic material holding portion 311 that holds a stick-shaped cosmetic material B, and a base portion 315 on which the cosmetic material holding portion 311 stands.

[0174] The cosmetic material holding portion 311 comprises a plurality of (four in this embodiment) claw pieces 312 which extend along the axial direction of the stick-shaped cosmetic material B and hold the outer peripheral surface of the stick-shaped cosmetic material B, a base end surface 315a (see Figure 9(d)) which serves as a bottom portion which holds the bottom of the stick-shaped cosmetic material B, and blade portions 313 which extend from only one end portion of the claw pieces 312 which are adjacent to each other in the longitudinal direction in the circumferential direction and which face each other.

[0175] As shown in FIG. 9(d), the claw pieces 312 are erected in the axial direction from the base end surface 315a. The outer peripheral surface of the claw pieces 312 is formed with a smaller diameter than the outer peripheral surface of the engaging ridge portion 316 of the base portion 315. The inner peripheral surface of the claw pieces 312 is formed in a curved shape so as to fit the outer peripheral surface of the stick-shaped cosmetic material B. Four claw pieces 312 are provided so as to sandwich the stick-shaped cosmetic material B from the outer periphery. The multiple claw pieces 312 are provided at intervals in the circumferential direction. The claw pieces 312 are provided so that two of them face each other with the central axis in between.

[0176] As shown in FIG. 10(b), each of the claw pieces 312 has a tapered surface 312d that is inclined so as to move away from the outer circumferential surface of the stick-shaped cosmetic material B toward the tip.

[0177] Tapered surface 312d is formed with an incline so that the inner diameter, which is the distance between a pair of opposing claw pieces 312, increases toward the tip. Providing tapered surface 312d makes it easier to insert stick-shaped cosmetic material B into cosmetic material holding portion 311, and prevents the outer periphery of the rear end portion of stick-shaped cosmetic material B from being scraped by claw pieces 312 when inserting stick-shaped cosmetic material B.

[0178] 10(a) and 10(b), the base end surface 315a is provided at the axial tip of the base portion 315. The base end surface 315a is formed in a shape similar to the cross-sectional shape of the stick-shaped cosmetic material B, which is formed to have a major axis and a minor axis. The bottom surface of the stick-shaped cosmetic material B abuts against the base end surface 315a.

[0179] The claw pieces 312 adjacent to each other in the circumferential direction in the longitudinal direction have an extension portion 312a extending in the axial direction from a base portion end surface 315a.

[0180] The expansion portion 312a extends from only one circumferential end of the claw piece 312. Specifically, the expansion portion 312a extends from only one opposing end of the claw pieces 312 adjacent in the long axis direction in the circumferential direction. The expansion portion 312a expands in the circumferential direction along the outer circumferential surface of the stick-shaped cosmetic material B. A pair of expansion portions 312a opposing each other in the circumferential direction are not connected to each other in the circumferential direction and are provided with a gap between them. The expansion portion 312a is formed to have the same radial thickness as the claw piece 312.

[0181] The extension portion 312a is formed in a part of the axial direction of the claw piece 312. That is, the extension portion 312a is provided so as to extend shorter than the claw piece 312.

[0182] The inner peripheral surface of the extension portion 312a is formed in a curved shape so as to fit along the outer peripheral surface of the stick-shaped cosmetic material B. That is, the inner peripheral surface of the extension portion 312a and the inner peripheral surface of the claw piece 312 are formed continuously so as to fit along the outer peripheral surface of the stick-shaped cosmetic material B. As a result, the inner peripheral surface of the extension portion 312a extending axially from the base portion end face 315a and the inner peripheral surface of the claw piece 312 come into close contact with the stick-shaped cosmetic material B over a wide range in the circumferential direction, making it possible to stably hold the rear portion of the stick-shaped cosmetic material B in particular.

[0183] The extension portion 312a is positioned in the guide groove 321 of the front tube 320 together with the claw piece 312. The outer peripheral surface of the stick-shaped cosmetic material B is held by the inner peripheral surfaces of the claw piece 312 and the extension portion 312a.

[0184] The blade portion 313 is provided at a position spaced apart from the extension portion 312a in the axial direction, and forms a space portion 313c between the blade portion 313 and the extension portion 312a.

[0185] The wing portions 313 extend from only one circumferential end of the claw pieces 312. Specifically, the wing portions 313 extend from only one opposing end of the claw pieces 312 that are adjacent in the longitudinal direction in the circumferential direction. The wing portions 313 extend along the circumferential direction of the stick-shaped cosmetic material B. A pair of circumferentially opposing wing portions 313 are not connected to each other in the circumferential direction, but are spaced apart.

[0186] The wing portion 313 is formed on a part of the axial direction of the claw piece 312. That is, the wing portion 313 extends shorter than the claw piece 312.

[0187] In this way, the cosmetic material holding portion 311 of the core chuck member 310 has wing portions 313 that extend circumferentially from the claw pieces 312 along the outer circumferential surface of the stick-shaped cosmetic material B and hold the outer circumferential surface of the stick-shaped cosmetic material B. As a result, even if the number of claw pieces 312 is reduced, the provision of the wing portions 313 ensures sufficient holding force for holding the stick-shaped cosmetic material B. Therefore, even if the number of claw pieces 312 is reduced, the stick-shaped cosmetic material B can be held stably, and the stick-shaped cosmetic material B can be prevented from slipping out of the core chuck member 310.

[0188] The inner peripheral surface of the wing portion 313 is formed in a curved shape so as to fit along the outer peripheral surface of the stick-shaped cosmetic material B. That is, the inner peripheral surfaces of the wing portion 313 and the claw pieces 312 are formed continuously so as to fit along the outer peripheral surface of the stick-shaped cosmetic material B. As a result, the inner peripheral surfaces of the wing portion 313 and the claw pieces 312 come into close contact with the stick-shaped cosmetic material B over a wide circumferential range, so that the stick-shaped cosmetic material B can be held stably.

[0189] Wing portion 313 is formed of a thin film having a radial thickness of approximately 0.10 to 0.50 mm. That is, the radial thickness of wings 313 is smaller than that of claw pieces 312 and extension portions 312a. By forming wings 313 from a thin film, the degree of adhesion to the outer periphery of stick-shaped cosmetic material B can be increased compared to the case where thick wings are used.

[0190] The circumferential width of the blade portion 313 is the same as that of the extension portion 312a. The blade portion 313 is positioned in the guide groove 321 of the front tube 320 together with the claw piece 312. The outer peripheral surface of the stick-shaped cosmetic material B is held by the inner peripheral surfaces of the claw piece 312 and the blade portion 313.

[0191] The provision of the wing portions 313 allows the outer peripheral surface of the stick-shaped cosmetic material B to be elastically held with an optimal holding force, and increases the holding area of ​​the stick-shaped cosmetic material B. This further strengthens the holding force, and makes it possible to prevent the stick-shaped cosmetic material B from slipping out of the cosmetic material holding portion 311.

[0192] The blade portion 313 has an engagement portion 313b with which the stick-shaped cosmetic material B engages in the axial direction.

[0193] The engagement portion 313b is formed on the rear end surface (the end surface on the axial side of the base portion end surface 315a) of the blade portion 313. The engagement portion 313b is provided along the circumferential direction of the stick-shaped cosmetic material B. A space portion 313c is formed behind the engagement portion 313b.

[0194] The space 313c is formed between the extension portion 312a and the blade portion 313. By providing the space 313c, the outer peripheral surface of the stick-shaped cosmetic material B inserted into the cosmetic material holding portion 311 bites into the space 313c, thereby strengthening the engagement of the stick-shaped cosmetic material B with the cosmetic material holding portion 311. Therefore, even if the stick-shaped cosmetic material B is about to move axially forward due to an impact or the like, the outer periphery of the stick-shaped cosmetic material B gets caught in the engagement portion 313b, preventing the stick-shaped cosmetic material B from coming out.

[0195] A wall-like portion 322 along which the outer circumferential surface of the stick-shaped cosmetic material B slides in the axial direction is provided in the through hole 320a of the front tube 320. When the core chuck member 310 is assembled to the front tube 320, the claw pieces 312 and the wing portions 313 are positioned within the guide grooves 321, as shown in FIG.

[0196] At this time, the outer diameter of the expansion portion 312a of the claw piece 312 is larger than the inner diameter of the first wall-shaped portion 322a. Also, the outer diameter of the blade portion 313 is slightly larger than the inner diameter of the first wall-shaped portion 322a. Therefore, all parts of the through hole 320a except for the guide groove 321 become the wall-shaped portion 322, and the area at which the clearance between the wall-shaped portion 322 and the outer peripheral surface of the stick-shaped cosmetic material B can be minimized can be made larger than before.

[0197] Therefore, even if the stick-shaped cosmetic material B tilts when the core chuck member 310 advances and retreats, the angle of tilt is small because the area that can minimize the clearance is large. Therefore, the wall-like portion 322 can constantly support the outer circumferential surface of the stick-shaped cosmetic material B along the axial direction with a sufficient area, preventing breakage of the core due to tilting of the stick-shaped cosmetic material B and stabilizing the advancement and retreat of the stick-shaped cosmetic material B. Therefore, even if the stick-shaped cosmetic material B is extremely thin and soft and has a long payout stroke that makes it prone to breakage, breakage of the core due to tilting of the stick-shaped cosmetic material B can be prevented over the entire length from the retreat limit to the advance limit of the core chuck member 310.

[0198] As shown in Figures 8(a) and 8(b), the base portion 315 has an engagement rib portion 316 that circumferentially engages with the guide groove 321, and a male thread portion 317 that is formed continuously from the engagement rib portion 316 in the axial direction.

[0199] The engagement rib 316 is formed on the outer periphery of the portion between the base end surface 315a on which the claw 312 is erected and the male thread portion 317. The engagement rib 316 is formed linearly along the axial direction. The engagement rib 316 is formed continuously from the claw 312 in the axial direction. The engagement rib 316 engages with the guide groove 321 of the front tube 320, thereby restricting the relative rotation in the circumferential direction between the front tube 320 and the core chuck member 310. A groove is formed between adjacent engagement ribs 316 up to the groove end surface 319. The groove end surface 319 determines the forward limit of the core chuck member 310 when it abuts against the rear end surface 320c of the first wall portion 322a of the front tube 320.

[0200] The male thread portion 317 is provided in plurality so as to protrude from the engaging rib portion 316 in the axial direction to the outer periphery of a portion formed with a smaller diameter than the engaging rib portion 316. The male thread portion 317 is provided at one location in the circumferential direction. Alternatively, the male thread portion 317 may be provided at multiple locations (for example, two locations) in the circumferential direction. The male thread portion 317 screws into the female thread portion 343 of the female thread tube 340.

[0201] The female threaded tube 340 is a cylindrical member made of resin and formed with a female threaded portion 343 that is threadedly engaged with the male threaded portion 317 of the core chuck member 310 and penetrates therethrough in the axial direction. The female threaded tube 340 has a rear end surface 344 that abuts against a step portion 335 of the base tube 330 when inserted into the base tube 330, and a front end surface 342 that abuts against a rear end surface 320c of the front tube 320 when the front tube 320 is assembled to the base tube 330.

[0202] A plurality of axially extending vertical ribs (not shown) are formed at equal intervals in the circumferential direction on the outer circumferential surface of the female thread tube 340. The vertical ribs engage with knurls (not shown) formed on the inner circumferential surface of the base tube 330, and function as a rotation stopper that prevents the female thread tube 340 from rotating relative to the base tube 330.

[0203] When the leading tube 320 and the base tube 330 are rotated relative to each other in a state in which the male thread portion 317 of the core chuck member 310 is screwed into the female thread portion 343 of the female thread tube 340, the core chuck member 310 rotates integrally with the leading tube 320, and the female thread tube 340 rotates integrally with the base tube 330, so that the core chuck member 310 and the base tube 330 rotate relative to each other. As a result, the male thread portion 317 of the core chuck member 310 rotates relative to the female thread portion 343, so that the core chuck member 310 moves relative to the female thread tube 340 in the axial direction. That is, a payout mechanism is formed that advances and retracts the rod-shaped cosmetic material B held by the core chuck member 310 from the tip opening 320b of the through hole 320a of the leading tube 320 by the relative rotation between the leading tube 320 and the base tube 330.

[0204] In this way, in the dispensing container 301, the female threaded tube 340 and the core chuck member 310 form a dispensing mechanism that dispensing the rod-shaped cosmetic material B in the axial direction, and when the front tube 320 and the base tube 330 are rotated relative to each other, the core chuck member 310 advances and retreats in the axial direction within the front tube 320 and the base tube 330, and the rod-shaped cosmetic material B also advances and retreats in accordance with the advancement and retreat of the core chuck member 310.

[0205] Specifically, when the user rotates the leading tube 320 and the base tube 330 relative to each other in the forward direction, the core chuck member 310 moves axially toward the tip opening 320b of the leading tube 320, advancing the stick-shaped cosmetic material B. As a result, the stick-shaped cosmetic material B is fed out from the tip opening 320b. On the other hand, when the user rotates the leading tube 320 and the base tube 330 relative to each other in the reverse direction, the core chuck member 310 moves in the reverse direction, retracting the stick-shaped cosmetic material B. As a result, the stick-shaped cosmetic material B is fed back. The engagement ridge portion 316 of the core chuck member 310 is formed so that the female thread tube 340 cannot be inserted therethrough. Therefore, as the core chuck member 310 retracts, the engagement ridge portion 316 comes into contact with the female thread tube 340, and the retraction limit of the core chuck member 310 is determined.

[0206] According to the above-described second embodiment, the same effects as those of the first embodiment are achieved.

[0207] Although the embodiments of the present invention have been described above, the above-mentioned embodiments merely show some of the application examples of the present invention, and it is not intended that the technical scope of the present invention be limited to the specific configurations of the above-mentioned embodiments. [Explanation of symbols]

[0208] 1,301 Stick-shaped cosmetic material dispenser (dispensing container) 10, 110, 210, 310, 410, 510 Core chuck parts (rod-shaped cosmetic material holding parts) 11, 111, 211, 311, 411, 511 Cosmetic material holding part 12,112,312 Nail piece 12d,312d Tapered surface 13, 113, 213, 313, 413, 513 Wing 13a, 213a Tapered surface 13b, 112c, 113b, 213b, 313b, 513d Engagement part 13c,113c,213c,313c,513c Space part 15,315 Base 15a, 315a Base end surface (bottom surface) 20,320 Nozzle 20a,320a through hole 20b, 320b tip opening 21,321 Guide groove 22,322 Wall-like part 30,330 Base tube 312a,512a Extension 322a 1st wall part 322b Second wall part 413a First wing 413b Second wing 413c 1st space 413d Second space 413e First engagement part 413f Second engagement part A, B Stick-shaped cosmetic material

Claims

1. A stick-shaped cosmetic material dispensing container, a stick-type cosmetic material holding member that holds the stick-type cosmetic material, the stick-type cosmetic material holding member having a cosmetic material holding portion that holds the outer peripheral surface of the stick-type cosmetic material and a base portion on which the cosmetic material holding portion is erected; a front tube having a through hole through which the stick-shaped cosmetic material can be advanced and retracted; a base tube assembled to the front tube so as to be rotatable relative to the front tube; a feeding mechanism that moves the stick-shaped cosmetic material held by the stick-shaped cosmetic material holding member forward and backward through a tip opening of the through-hole of the front tube by relative rotation between the front tube and the base tube; Equipped with The cosmetic material holding portion is a claw piece extending along the axial direction of the stick-shaped cosmetic material and holding the outer peripheral surface of the stick-shaped cosmetic material; a bottom surface portion provided at a tip end of the base portion in an axial direction; a blade portion extending from the claw piece in a circumferential direction along the outer peripheral surface of the stick-shaped cosmetic material and holding the outer peripheral surface of the stick-shaped cosmetic material; a space formed behind the blade; and The through-hole has a guide groove that guides the stick-shaped cosmetic material holding member in the axial direction, The claw piece and the blade portion are positioned in the guide groove. A stick-shaped cosmetic material dispensing container characterized by the above.

2. The stick-shaped cosmetic material dispensing container according to claim 1, The blade portion has an engaging portion with which the stick-shaped cosmetic material engages in the axial direction. A stick-shaped cosmetic material dispensing container characterized by the above.

3. The stick-shaped cosmetic material dispensing container according to claim 1, The inner peripheral surface of the blade portion and the inner peripheral surface of the claw piece are formed continuously along the outer peripheral surface of the stick-shaped cosmetic material. A stick-shaped cosmetic material dispensing container characterized by the above.

4. The stick-shaped cosmetic material dispensing container according to claim 1, The blade portion has a radial thickness smaller than that of the claw piece. A stick-shaped cosmetic material dispensing container characterized by the above.

5. The stick-shaped cosmetic material dispensing container according to claim 1, The blade portion has the same radial thickness as the claw piece. A stick-shaped cosmetic material dispensing container characterized by the above.

6. The stick-shaped cosmetic material dispensing container according to claim 2, The engagement portion is formed on a rear end surface of the blade portion. A stick-shaped cosmetic material dispensing container characterized by the above.

7. The stick-shaped cosmetic material dispensing container according to claim 2, The claw piece extends in the axial direction from the bottom surface portion, has an extension portion formed to the same thickness as the claw piece, and expands in the circumferential direction along the outer circumferential surface of the stick-shaped cosmetic material. A stick-shaped cosmetic material dispensing container characterized by the above.

8. The stick-shaped cosmetic material dispensing container according to claim 7, the blade portion is provided at a position spaced apart from the expansion portion in the axial direction to form the space between the blade portion and the expansion portion, The engagement portion is formed on a rear end surface of the blade portion. A stick-shaped cosmetic material dispensing container characterized by the above.

9. The stick-shaped cosmetic material dispensing container according to claim 8, The blade portion has a radial thickness smaller than that of the claw piece and a circumferential width equal to that of the expansion portion. A stick-shaped cosmetic material dispensing container characterized by the above.

10. The stick-shaped cosmetic material dispensing container according to claim 2, The blade portion is a first blade portion provided at a position spaced apart from the bottom surface portion in the axial direction and forming a first space portion between the first blade portion and the bottom surface portion; a second blade portion provided at a position spaced apart from the first blade portion in the axial direction and forming a second space portion between the second blade portion and the first blade portion; and The engagement portion is formed on a rear end surface of the first blade portion and a rear end surface of the second blade portion. A stick-shaped cosmetic material dispensing container characterized by the above.

11. The stick-shaped cosmetic material dispensing container according to claim 1, The blade portion has a tapered surface on the inner peripheral surface of the tip portion away from the bottom surface portion, the tapered surface being inclined toward the tip portion so as to move away from the outer peripheral surface of the stick-shaped cosmetic material. A stick-shaped cosmetic material dispensing container characterized by the above.

12. The stick-shaped cosmetic material dispensing container according to any one of claims 1 to 11, The through-hole further has a wall-like portion along which the outer circumferential surface of the stick-shaped cosmetic material slides in the axial direction. A stick-shaped cosmetic material dispensing container characterized by the above.

13. The stick-shaped cosmetic material dispensing container according to claim 12, The outer diameter of the blade portion is larger than the inner diameter of the wall portion. A stick-shaped cosmetic material dispensing container characterized by the above.

14. The stick-shaped cosmetic material dispensing container according to claim 12, The claw pieces are provided in a plurality at intervals in the circumferential direction, The blade portions extend from both circumferential end portions of the claw pieces, The wall-like portion is provided so as to support the outer peripheral surface of the stick-shaped cosmetic material between a pair of the blade portions respectively extending from the adjacent claw pieces. A stick-shaped cosmetic material dispensing container characterized by the above.

15. The stick-shaped cosmetic material dispensing container according to claim 12, The claw pieces are provided in a plurality at intervals in the circumferential direction, The blade portion extends from only one end portion of the claw in the circumferential direction, The wall portion is a first wall-like portion that supports the outer peripheral surface of the stick-shaped cosmetic material between the blade portions that extend from the adjacent claw pieces; a second wall-like portion that supports the outer peripheral surface of the stick-shaped cosmetic material between the other end portions of the adjacent claw pieces where the wing portions are not provided; having A stick-shaped cosmetic material dispensing container characterized by the above.

Images