Stick-shaped cosmetic dispenser

Abstract

To prevent break of a core when drawing with a stick-shaped cosmetic material having a small core diameter.SOLUTION: When a stick-shaped cosmetic material M is pressed against an area to be applied while the stick-shaped cosmetic material M is protruding from a pipe member 3, the stick-shaped cosmetic material M gripped by a core chuck 4a causes a second spring 5y to contract, allowing the stick-shaped cosmetic material M to be drawn on the area to be applied while being protected. when the tip of the stick-shaped cosmetic material M is retracted or consumed for application and is about flush with the tip of the pipe member 3, and the stick cosmetic M is not protruding from the aperture 3 g of the pipe member 3, the pipe member 3 is pressed against the area to be applied, the area to be applied is somewhat concave and curved, together with the tip of the stick cosmetic M hitting the area to be applied, and the pipe member 3 that hits the area to be applied retracts while the first spring 6 contracts, and the stick cosmetic M that protrudes from the pipe member 3 contracts the second spring 5y, enabling the stick cosmetic M to be drawn on the area to be applied while being protected.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] Conventionally, when a stick-type cosmetic material with a thin core diameter is used in a stick-type cosmetic material dispensing container, the stick-type cosmetic material is prone to break when being applied to an area to be coated, and improvements have been sought. Techniques for preventing the stick-type cosmetic material from breaking due to impacts such as when the container is dropped in a stick-type cosmetic material dispensing container are relatively well known, including Patent Document 1 listed below.

[0003] In Patent Document 1, two springs are housed inside the container, and if the container is dropped, for example, from the front end, the stick-shaped cosmetic holding unit that holds the stick-shaped cosmetic moves toward the front of the axis, the spring on the front end compresses while the spring on the rear end expands, and the compression and expansion of the two springs cushions the impact, preventing the core from breaking due to the impact of the stick-shaped cosmetic. Also, if the container is dropped, for example, from the rear end, the stick-shaped cosmetic holding unit that holds the stick-shaped cosmetic moves toward the rear of the axis, the spring on the front end expands while the spring on the rear end compresses, and the expansion and compression of the two springs cushions the impact, preventing the core from breaking due to the impact of the stick-shaped cosmetic. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2018-175244 Summary of the Invention [Problem to be solved by the invention]

[0005] As described above, the prior art including Patent Document 1 can prevent breakage of the core of a stick-shaped cosmetic material due to dropping or the like, but there has not previously existed a container for dispensing stick-shaped cosmetic material that can prevent breakage of the core, particularly when drawing with a stick-shaped cosmetic material having a thin core diameter.

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a container for dispensing stick-shaped cosmetic material that can prevent the lead from breaking when drawing with a stick-shaped cosmetic material having a thin lead diameter and that is easier to use than conventional containers. [Means for solving the problem]

[0007] The gist of this disclosure is as follows [1] to [7].

[0008] [1] A front tube having an opening at its tip, a female screw member having a female screw on the inside and capable of rotating relative to the front tube, a movable body having a male screw on its outer surface that can be threaded with the female screw of the female screw member and a core chuck at its tip for gripping a stick-shaped cosmetic material, and a pipe member that is disposed inside the front tube, is movable in the axial direction relative to the front tube and can rotate synchronously around the axis, and protrudes from the opening of the front tube, the movable body being accommodated inside the pipe member so as to be movable in the axial direction and rotatable synchronously around the axis, and the pipe member has an opening at its tip that allows the stick-shaped cosmetic material to enter and exit, The pipe member is biased forward relative to the female screw member. A stick-shaped cosmetic dispenser comprising a first spring for cushioning a pipe member, and a second spring having a spring constant different from that of the first spring for cushioning a core chuck.

[0009] According to [1], when the stick-shaped cosmetic protruding from the pipe member is pressed against the part to be applied, the stick-shaped cosmetic held by the core chuck retracts the second spring, protecting the stick-shaped cosmetic, allowing it to be drawn on the part to be applied. When the tip of the stick-shaped cosmetic retracts or is consumed in application, making it roughly flush with the tip of the pipe member, and the pipe member is pressed against the part to be applied in a state in which the stick-shaped cosmetic does not protrude from the opening of the pipe member, the part to be applied becomes slightly concave and curved, so that the tip of the stick-shaped cosmetic hits the part to be applied, and the pipe member that hits the periphery of the part to be applied retracts while retracting the first spring, and the stick-shaped cosmetic protruding from the pipe member retracts the second spring, protecting the stick-shaped cosmetic, allowing it to be drawn on the part to be applied. When drawing is completed and the stick-shaped cosmetic material dispensing container is removed from the application area, the first spring expands due to its biasing force, causing the pipe member to advance and return to its original position, while the second spring expands due to its biasing force, causing the stick-shaped cosmetic material to advance, with the tip of the stick-shaped cosmetic material retracting from its original position by the amount of wear caused by drawing. If the tip of the stick-shaped cosmetic material is drawn too far and retracts and becomes hidden within the pipe member, the relative rotation of the tip tube and the female screw member advances the stick-shaped cosmetic material held by the core chuck, so that the tip of the stick-shaped cosmetic material is flush with or protruding from the tip of the pipe member. Therefore, stick-shaped cosmetic material, particularly stick-shaped cosmetic material with a narrow core diameter, can be drawn on the application area without being drawn too far from the pipe member, and breakage of the core during drawing can be prevented. Furthermore, because drawing can be performed even when the stick-shaped cosmetic material is not protruding from the opening of the pipe member, this container is easier to use than conventional stick-shaped cosmetic material dispensing containers.

[0010] [2] A configuration that preferably achieves the above-mentioned effect is, specifically, the stick-shaped cosmetic material dispensing container described in [1], which is characterized in that it has a bottomed cylindrical container body that is attached to the front tube so as to be rotatable relative to the front tube, and the container body houses a female screw member therein and engages with the female screw member so as to be rotatable synchronously around the axis.

[0011] [3] Furthermore, as a configuration that preferably achieves the above-mentioned function, specifically, the female screw member is housed in the leading tube, and the rear end of the female screw member projects outward in the axial direction from the rear end of the leading tube, forming a relative rotation portion that enables relative rotation with the leading tube.

[0012] [4] The stick-type cosmetic material dispensing container according to any one of [1] to [3], wherein the spring constant of the second spring is greater than the spring constant of the first spring, thereby enabling the functions of the first spring and the second spring to be suitably realized.

[0013] [5] The container for dispensing a stick-shaped cosmetic material according to any one of [1] to [4], wherein at least one of the first spring and the second spring is formed integrally with the female screw member, thereby reducing the number of parts.

[0014] [6] The container for dispensing a stick-shaped cosmetic material according to any one of [1] to [5], characterized in that the tip of the pipe member is provided with an inclined portion inclined relative to the axial direction. According to this, when the container for dispensing a stick-shaped cosmetic material is obliquely faced to the part to be applied, the tip of the pipe member is inclined, so that the tip of the stick-shaped cosmetic material and at least the tip of the stick-shaped cosmetic material in the pipe member easily hits the part to be applied, and because a component force in the axial direction acts on the stick-shaped cosmetic material and at least the stick-shaped cosmetic material in the pipe member, it is possible to draw the stick-shaped cosmetic material and at least the stick-shaped cosmetic material in the pipe member while appropriately shrinking, just as in the case where the tip portion perpendicular to the axial direction of the pipe member faces the part to be applied.

[0015] [7] The container for dispensing a stick-shaped cosmetic material according to any one of [1] to [6], characterized in that it is provided with a cylindrical holder tube with a bottom that covers the rear portion of the front tube and the female screw member from the rear side and accommodates them inside, and is rotatable in synchronization with the female screw member. This allows the user to hold the holder tube in their hand while drawing, making drawing easier and improving usability. [Effects of the Invention]

[0016] Thus, according to the present invention, it is possible to prevent the lead from breaking when drawing with a stick-shaped cosmetic material having a thin lead diameter, and it is possible to provide a container for dispensing stick-shaped cosmetic material that is easier to use than conventional containers. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a side view showing a stick-type cosmetic material dispensing container according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Figure 3] FIG. 3 is a side view showing the front tube in FIGS. 1 and 2. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Figure 5] FIG. 3 is a side view showing the container body in FIGS. 1 and 2. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5. [Figure 7] FIG. 3 is a perspective view showing a pipe member in FIGS. 1 and 2. [Figure 8] FIG. 8 is a side view of the pipe member shown in FIG. 7. [Figure 9] FIG. 8 is a cross-sectional view taken along line IX-IX in FIG. [Figure 10] FIG. 9 is a cross-sectional view taken along line XX in FIG. 8. [Figure 11] 3 is an assembled cross-sectional view of the front tube and pipe member in FIG. 2. FIG. [Figure 12] FIG. 3 is a side view showing the moving body in FIG. 2. [Figure 13] 3 is a side view showing the female screw member in FIG. 2 with the first spring removed. FIG. [Figure 14] FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG. [Figure 15] 3 is an assembled side view of the pipe member and the female screw member in FIG. 2. FIG. [Figure 16] FIG. 16 is a cross-sectional view taken along line XVI-XVI in FIG. [Figure 17] FIG. 4 is a cross-sectional view showing a stick-type cosmetic material dispensing container according to a second embodiment of the present invention. [Figure 18]FIG. 10 is a cross-sectional view showing a stick-type cosmetic material dispensing container according to a third embodiment of the present invention. [Figure 19] FIG. 19 is a side view showing the female screw member in FIG. [Figure 20] FIG. 20 is a cross-sectional view taken along the line XX-XX in FIG. 19. [Figure 21] 21 is an assembled side view of the pipe member and the female screw member in FIG. 20. FIG. [Figure 22] FIG. 22 is a cross-sectional view taken along line XXII-XXII in FIG. 21. [Figure 23] FIG. 10 is a cross-sectional view showing a stick-type cosmetic material dispensing container according to a fourth embodiment of the present invention. [Figure 24] FIG. 10 is a side view showing a pipe member, a stick-shaped cosmetic material, and the tip end of a front tube of a stick-shaped cosmetic material dispensing container according to a fifth embodiment of the present invention. [Figure 25] 25 is a cross-sectional view showing the pipe member, the stick-shaped cosmetic material, and the tip of the front tube shown in FIG. 24. FIG. [Figure 26] FIG. 10 is a cross-sectional view showing a pipe member, a stick-shaped cosmetic material, and the tip of a front tube of a stick-shaped cosmetic material dispensing container according to a sixth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] Preferred embodiments of a stick-type cosmetic material dispensing container according to the present invention will now be described with reference to Figures 1 to 26. Figures 1 to 16 show a first embodiment of the present invention, Figure 17 shows a second embodiment of the present invention, Figures 18 to 22 show a third embodiment of the present invention, Figure 23 shows a fourth embodiment of the present invention, Figures 24 and 25 show a fifth embodiment of the present invention, and Figure 26 shows a sixth embodiment of the present invention; in each figure, the same elements are given the same reference numerals, and duplicate explanations will be omitted.

[0019] First, a first embodiment will be described, as shown in Figs. 1 to 16. Figs. 1 and 2 show a stick-type cosmetic dispensing container according to a first embodiment of the present invention, Figs. 3 and 4 show a front tube, Figs. 5 and 6 show a container body, Figs. 7 to 10 show a pipe member, Fig. 11 is an assembled cross-sectional view of the front tube and pipe member, Fig. 12 is a side view of the movable body, Figs. 13 and 14 are views of the female screw member with the first spring removed, and Figs. 15 and 16 are assembled views of the pipe member and female screw member. The stick-type cosmetic dispensing container of this embodiment is particularly suitable for applying stick-type cosmetics, such as eyebrow makeup, to areas to be applied, such as eyebrows, and is particularly suitable for use with stick-type cosmetics having a narrow core. The stick-type cosmetic is not limited to eyebrow makeup, and can also be used for other stick-type cosmetics, such as eyeliner and lipliner.

[0020] 1 and 2, the stick-type cosmetic material dispensing container 100 has an overall shape similar to a long, thin round rod like a writing implement, and its exterior comprises a front tube 1 at the front and a container body 2 at the rear. The front tube 1 contains a stick-type cosmetic material M and a pipe member 3 through which the tip of the stick-type cosmetic material M can pass and which is slidable (movable) within a predetermined range in the axial direction. The front tube 1 and container body 2 contain a movable body 4 equipped with a core chuck 4a that grips the stick-type cosmetic material M, a female screw member 5 that screws into the movable body 4, a first spring 6 that cushions the pipe member 3 in the axial direction, and a second spring 5y that cushions the core chuck 4a and the movable body 4 in the axial direction, where the second spring 5y is included in the female screw member 5.

[0021] 3 and 4, the front tube 1 is configured as a stepped cylinder having a step portion 1a on its outer circumferential surface in the middle in the axial direction, and the small-diameter cylindrical portion continuing rearward from this step portion 1a serves as an insertion portion to be inserted into the container body 2, while the large-diameter cylindrical portion continuing forward from the step portion 1a and tapering toward the tip serves as a gripping portion that protrudes from the tip of the container body 2 and is gripped when the user rotates the front tube 1 and the container body 2 relative to each other. A convex portion 1b is provided in an annular shape on the outer circumferential surface of the front tube 1 rearward of the step portion 1a to be attached to the container body 2.

[0022] The front tube 1 has a bore extending from the front opening 1c to the rear end for accommodating the pipe member 3. The front end of the bore is a small-diameter bore 1d, and the area extending from the small-diameter bore 1d to the rear end is a large-diameter bore 1e. In the small-diameter bore 1d, a series of concave portions 1f with increasing diameters are arranged in a row along the circumferential direction near the boundary between the small-diameter bore 1d and the large-diameter bore 1e. These concave portions 1f have the same diameter as the large-diameter bore 1e and are connected to the large-diameter bore 1e. Between the concave portions 1f, 1f along the circumferential direction, a series of concave portions 1f and convex portions 1g are arranged in a row along the circumferential direction (four each in this example). These convex portions 1g have the same diameter as the small-diameter bore 1d and are connected to the small-diameter bore 1d. These concave portions 1f and convex portions 1g are used to engage the pipe member 3 in the rotational direction. The rear end surface of the protrusion 1g is a stepped surface 1h, which is the forward limit against which the tip end surface of the pipe member 3 abuts (see FIG. 2).

[0023] As shown in Figures 5 and 6, the container body 2 is cylindrical with a bottom and has a tip surface that abuts against the stepped portion 1a of the front tube 1 (see Figure 2). Forward of the flange 2a provided on the outer circumferential surface of the container body 2, a plurality of (four in this example) ridges 2b for detachably attaching a cap (not shown) are arranged in a row along the circumferential direction, and a plurality of dowels 2c are arranged forward of the ridges 2b along the circumferential direction. Rearward of the flange 2a, the outer circumferential surface of the container body 2 is provided with male screws 2d for detachably attaching a holder tube 7 of a second embodiment described below.

[0024] A pair of small windows 2e that communicate between the inside and outside are opened facing each other in the cylindrical portion between the flange 2a and the male screw 2d of the container body 2, and a locking protrusion 2f that protrudes in the axial direction is provided on the inner peripheral surface on the front side of this small window 2e for axially engaging with the protrusion 1b of the front tube 1. In addition, on the inner peripheral surface of the container body 2, a plurality of ridges 2g that extend long from the bottom toward the tip side are arranged in parallel at equal intervals along the circumferential direction (four in this example) for engaging with the female screw member 5 in the rotational direction.

[0025] As shown in Fig. 2, the pipe member 3 is inserted into the front tube 1, and also inserts the stick-shaped cosmetic material M and the core chuck 4a into it. As shown in Figs. 7 to 10, the pipe member 3 has a small-diameter cylindrical tip 3a, and a large-diameter, long cylindrical portion 3b extending rearward from the tip 3a, with a flange 3c provided at the rear end of the cylindrical portion 3b against which the first spring 6 abuts (see Fig. 2).

[0026] Between the tip end portion 3a and the cylindrical portion 3b, a plurality of convex and concave portions (four in each case) are formed continuously along the circumferential direction. The convex portion 3d is flush with the cylindrical portion 3b, slopes downward toward the tip end, and extends a predetermined length. The concave portion 3e is a through hole that communicates the inside and outside. The convex portion 3d is provided corresponding to the concave portion 1f of the front tube 1, and the concave portion 3e is provided corresponding to the convex portion 1g (see FIG. 4). The tip end surface 3f (see FIG. 7) of the cylindrical portion 3b, which is connected to the rear edge of the concave portion (through hole) 3e, advances and abuts against the step surface 1h (see FIG. 4) of the convex portion 1g of the front tube 1, thereby reaching the forward limit (see FIG. 2).

[0027] The pipe member 3 has a cylindrical hole with a circular cross section that penetrates from the opening 3g at the tip of the tip portion 3a to the rear end, forming a stick-shaped cosmetic hole 3h that allows the stick-shaped cosmetic M to advance and retract. In the cylindrical portion 3b, gripping piece grooves 3i are provided in succession at multiple locations (here, four equally spaced positions) around the stick-shaped cosmetic hole 3h, allowing the gripping pieces 4f (described later) of the movable body 4 to slide therein, and these stick-shaped cosmetic holes 3h and gripping piece grooves 3i form an advance and retract hole 3j along which the stick-shaped cosmetic M and gripping pieces 4f slide. Note that the rear half of the advance and retract hole 3j in the cylindrical portion 3b is larger in diameter than the front half (see Figures 9 and 10), but this is to allow the advance and retraction of a male screw 4d (described later) (see Figure 12), which is thicker than the stick-shaped cosmetic M. The cylindrical hole 3k at the rear end of the cylindrical portion 3b is a circular hole with an enlarged diameter and a predetermined length, which allows the tip of the female screw member 5 to enter (see FIG. 2).

[0028] 11, the pipe member 3 is inserted into the front tube 1, and its recess 3e enters the protrusion 1g of the front tube 1, and its protrusion 3d enters the recess 1f of the front tube 1 (see FIGS. 4 and 7), thereby enabling the pipe member 3 to rotate synchronously with and move axially relative to the front tube 1. In the state shown in FIG. 11, the tip end surface 3f of the pipe member 3 abuts against the step surface 1h (see FIG. 4) of the protrusion 1g of the front tube 1, and is positioned at the forward limit.

[0029] 12, the movable body 4 includes a core chuck 4a for supporting the rear end of the stick-shaped cosmetic material M, a body portion 4b behind the core chuck 4a, and a shaft portion 4c behind the body portion 4b. The shaft portion 4c is a long shaft extending rearward in the axial direction, and a male screw 4d that screws into the screwing protrusion 5a serving as the female screw of the female screw member 5 is provided on the outer circumferential surface of the shaft portion 4c so as to extend in the axial direction.

[0030] The core chuck 4a comprises a base 4e whose outer shape roughly matches the outer shape of the stick-shaped cosmetic M and against which the rear end face of the stick-shaped cosmetic M abuts, and gripping pieces 4f which are provided at multiple positions (here, four equally spaced positions) around the outer circumferential surface of the base 4e so as to protrude toward the tip end and which clamp and grip the rear end of the stick-shaped cosmetic M that abuts against the base 4e. The body 4b is provided with protrusions 4g at positions rearward of the gripping pieces 4f which extend axially rearward so as to enable axial movement in the same manner as the gripping pieces 4f. A narrow diameter section is formed between the core chuck 4a and body 4b, making the core chuck 4a more flexible.

[0031] The female screw member 5 is made of resin and has a substantially cylindrical shape as shown in Figures 13 and 14. Threading projections 5a serving as female screws that threadably engage with the male screws 4d of the movable body 4 are provided at opposing positions on the inner peripheral surface of the tip of the female screw member 5. A notch 5b is provided rearward from the opposing position at the tip of the female screw member 5. The notch 5b is provided at a position that sandwiches the threading projection 5a in the circumferential direction and extends rearward beyond the threading projection 5a, thereby providing spring properties to the cantilever piece that has the threading projection 5a and has an arc shape when viewed in the axial direction.

[0032] The female screw member 5 has enlarged diameter sections 5c and 5d at the approximate center and rear end in the axial direction, and recesses 5e and protrusions 5f are provided in a gear-like arrangement at four equally spaced positions in the same phase around the enlarged diameter sections 5c and 5d, respectively. These front and rear recesses 5e and 5e are provided to engage with the protrusions 2g of the container body 2 in the rotational direction (see FIG. 6). A second spring 5y, a resin spring having a slit on its circumferential surface and integrally molded in a generally spiral shape, is provided between the enlarged diameter sections 5c and 5d of the female screw member 5. The first spring 6 (see FIG. 2) is a coil spring, and the spring constant of the second spring 5y, which is a resin spring, is greater than the spring constant of the first spring 6, which is a coil spring.

[0033] Then, as shown in Figures 15 and 16, the lead chuck 4a is inserted into the set of the front tube 1 and pipe member 3 obtained in Figure 11 (the front tube 1 is omitted in Figures 15 and 16). The stick-shaped cosmetic material M is held in advance by the lead chuck 4a. Then, by inserting the lead chuck 4a so that the gripping pieces 4f of the lead chuck 4a are accommodated in the gripping piece grooves 3i of the pipe member 3 (see Figures 9 and 10), the lead chuck 4a is attached to the front tube 1 and the pipe member 3 so that it can rotate synchronously with them and move axially.

[0034] In this state, with the first spring 6 positioned between the rear end surface of the flange portion 3c of the pipe member 3 and the expanded diameter portion 5c of the female screw member 5, the male screw 4d of the core chuck 4a is screwed into the screwing protrusions 5a, 5a of the female screw member 5 and tightened, thereby interposing the first spring 6 between the rear end surface of the flange portion 3c of the pipe member 3 and the expanded diameter portion 5c of the female screw member 5.

[0035] 2, the container body 2 is pushed into the leading tube 1 so that the ridges 2g of the container body 2 enter the front and rear recesses 5e, 5e of the female screw member 5, and the leading end surface of the container body 2 abuts against the stepped portion 1a of the leading tube 1, and the locking protrusions 2f (see FIG. 6) of the container body 2 engage with the protrusions 1b of the leading tube 1 in the axial direction, whereby the leading tube 1 is attached to the container body 2 so as to be immovable in the axial direction but rotatable relative to the container body 2 about the axis. In this state, the second spring 5y abuts against the bottom of the container body 2.

[0036] In this state, the pipe member 3 is biased by the biasing force of the first spring 6, and the tip surface 3f of the pipe member 3 abuts against the stepped surface 1h of the protruding portion 1g of the front tube 1, reaching the forward limit, and the tip portion 3a of the pipe member 3 protruding a predetermined length from the front tube 1. Here, the state in which the stick-shaped cosmetic material M is flush with the tip surface of the pipe member 3 is referred to as the initial state.

[0037] Thus, according to the first embodiment, the device comprises a front tube 1 having an opening 1c at its tip, a female screw member 5 having a screwing protrusion 5a as a female screw on the inside and rotatable relative to the front tube 1, a movable body 4 having a male screw 4d on its outer surface that can be screwed with the screwing protrusion 5a of the female screw member 5 and having a core chuck 4a at its tip for gripping a stick-shaped cosmetic material M, and a pipe member 3 that is arranged inside the front tube 1 and is movable in the axial direction relative to the front tube 1 and rotatable synchronously around the axis and protrudes from the opening 1c of the front tube 1, the movable body 4 being housed inside the pipe member 3 so as to be movable in the axial direction and rotatable synchronously around the axis, and the tip of the pipe member 3 has an opening 3g that allows the stick-shaped cosmetic material M to enter and exit, a first spring 6 that cushions the pipe member 3, and a second spring 5y that has a spring constant different from that of the first spring 6 and cushions the core chuck 4a.

[0038] This provides the following functions and effects. First, when the tip of the stick-shaped cosmetic material M is advanced slightly from the initial state shown in Fig. 2 to apply it to the area to be applied, the front tube 1 and the female screw member 5 (effectively the container body 2) rotate relative to each other in the advancing direction of the core chuck 4a. Then, when the stick-shaped cosmetic material M is pressed against the area to be applied, the stick-shaped cosmetic material M held by the core chuck 4a contracts the second spring 5y, protecting the stick-shaped cosmetic material M, allowing it to be applied to the area to be applied.

[0039] Furthermore, when the tip of the stick-shaped cosmetic M has receded or been consumed in the application, becoming roughly flush with the tip of the pipe member 3, and the stick-shaped cosmetic M is not protruding from the opening 3g of the pipe member 3, when the pipe member 3 is pressed against the area to be applied, the area to be applied will bend slightly concave, causing the tip of the stick-shaped cosmetic M to hit the area to be applied, and the pipe member 3 that has hit the periphery of the area to be applied will retract while contracting the first spring 6, and the stick-shaped cosmetic M protruding from the pipe member 3 will retract the second spring 5y, protecting the stick-shaped cosmetic M, allowing it to be drawn onto the area to be applied.

[0040] When drawing is completed and the stick-type cosmetic material dispensing container 100 is removed from the application area, the first spring 6 extends due to its biasing force, causing the pipe member 3 to move forward and return to its original forward limit position (where the tip surface 3f abuts the stepped surface 1h), and the second spring 5y extends due to its biasing force, causing the stick-type cosmetic material M to move forward and the tip of the stick-type cosmetic material M to move back from its original position by the amount worn out by drawing. If the tip of the stick-type cosmetic material M has been drawn too far and is hidden within the pipe member 3, the relative rotation of the front tube 1 and the female screw member 5 (effectively the container body 2) will feed out the stick-type cosmetic material M held by the core chuck 4a, so that the tip of the stick-type cosmetic material M is flush with or protruding from the tip of the pipe member 3.

[0041] Therefore, the stick-shaped cosmetic material M, especially the stick-shaped cosmetic material M with a thin core diameter, can be applied to the area to be coated without being pushed out too far from the pipe member 3, and the core can be prevented from breaking while coating. Furthermore, because the stick-shaped cosmetic material M can be applied even when it is not projecting from the opening 3g of the pipe member 3, it is easier to use than conventional containers for dispensing stick-shaped cosmetic material.

[0042] Furthermore, according to the first embodiment, the container body 2 is provided with a cylindrical container body with a bottom that is attached to the front tube 1 so as to be rotatable relative to the front tube 1, and the container body 2 accommodates the female screw member 5 therein and is configured to engage with the female screw member 5 so as to be rotatable synchronously around the axis, thereby enabling the above-mentioned effect to be preferably exerted.

[0043] Furthermore, since the spring constant of the second spring 5y is greater than the spring constant of the first spring 6, the actions of the first spring 6 and the second spring 5y are preferably realized.

[0044] Furthermore, since the second spring 5y is formed integrally with the female screw member 5, the number of parts is reduced.

[0045] Here, an example of a manufacturing method for assembling a stick-type cosmetic material M into a stick-type cosmetic material dispensing container 100 will be described. The length of the stick-type cosmetic material M used is manufactured so that when assembled into the stick-type cosmetic material dispensing container 100, it will be the length from the tip of the front tube 1 (see FIG. 2) to the tip of the base 4e of the core chuck 4a (see FIG. 12). Also, with reference to FIG. 2, the axial length between the tip of the front end 3a of the pipe member 3 and the front end of the front tube 1 (the axial length between the opening 3g of the pipe member 3 and the opening 1c at the front end of the front tube 1; referred to here as x) is configured to be the same as or shorter than the axial length between the tip of the gripping piece 4f of the core chuck 4a and the tip of the base 4e (see also FIG. 2; referred to here as y), with reference to FIG.

[0046] The manufacturing method will be described below with reference to Figure 2. The stick-shaped cosmetic material M is inserted through the opening 3g of the pipe member 3, and with the tip of the stick-shaped cosmetic material M protruding from the end of the pipe member 3 by, for example, about 1 mm, the pipe member 3 is pressed into the pipe member 3 using a jig until the jig abuts against the tip of the front tube 1. The rear end face of the stick-shaped cosmetic material M then abuts against the tip of the base 4e of the core chuck 4a and is gripped by the gripping piece 4f. After that, the jig is removed, and the pipe member 3 moves forward, leaving the stick-shaped cosmetic material M in the core chuck 4a, and returns to its initial position. Note that when the stick-shaped cosmetic material M is assembled using the manufacturing method described here, immediately after assembly, there will be a space of axial length x between the tip of the stick-shaped cosmetic material M and the opening 3g of the pipe member 3. However, in Figure 2, the movable body 4 is then advanced, bringing the stick-shaped cosmetic material M flush with the tip face of the pipe member 3.

[0047] Here, if the axial length x between the tip of the pipe member 3 and the tip of the front tube 1 is configured to be longer than the axial length y between the tip of the gripping piece 4f and the tip of the base 4e, when the stick-shaped cosmetic material M is press-fitted into the opening 3g of the pipe member 3 using the jig, there is a risk that the rear end face of the stick-shaped cosmetic material M will hit the tip of the base 4e and be crushed before the jig hits the tip of the front tube 1. Note that even if the axial length x between the tip of the pipe member 3 and the tip of the front tube 1 is slightly longer than the axial length y between the tip of the gripping piece 4f and the tip of the base 4e, the stick-shaped cosmetic material M may not be crushed, depending on its softness.

[0048] FIG. 17 is a cross-sectional view showing a stick-type cosmetic material dispensing container according to a second embodiment of the present invention.

[0049] In the second embodiment of the stick-shaped cosmetic dispensing container 200, the stick-shaped cosmetic dispensing container 100 of the first embodiment is used as a so-called stick-shaped cosmetic cartridge, and the stick-shaped cosmetic dispensing container 200 is constructed by detachably (or non-detachably) attaching a long, bottomed, cylindrical holder tube 7 to the container body 2 that constitutes the stick-shaped cosmetic cartridge.

[0050] The stick-shaped cosmetic material dispensing container 200 is constructed by threading a female screw 7a formed on the inner peripheral surface of the tip of the holder tube 7 into a male screw 2d (see Figures 5 and 6) formed on the outer peripheral surface of the container body 2 behind the flange portion 2a.

[0051] According to the second embodiment, the holder tube 7 can be held in the hand while drawing, making drawing easier and improving usability. The holder tube 7 needs only to be a cylindrical shape with a bottom that covers the rear portion of the front tube 1 and the female screw member 5 from the rear side and accommodates them inside, and can rotate synchronously with the female screw member 5. For example, the cylindrical portion of the container body 2 may be extended further rearward to serve as the holder tube 7.

[0052] FIG. 18 is a cross-sectional view showing a stick-type cosmetic material dispensing container according to a third embodiment of the present invention, FIGS. 19 and 20 are views showing a female screw member, and FIGS. 21 and 22 are views showing an assembly of a pipe member and a female screw member.

[0053] The main difference between the stick-type cosmetic material dispensing container 300 of this third embodiment and the stick-type cosmetic material dispensing container 100 of the first embodiment is that, instead of the female screw member 5 including the second spring 5y, a female screw member 15 including a first spring 15x and a second spring 15y is used, as shown in Figures 19 and 20, and accordingly, instead of the front tube 1 and the pipe member 3, a front tube 11 and a pipe member 13 with slightly modified configurations are used.

[0054] The female screw member 15 is integrally formed from resin and is configured in an approximately cylindrical shape, and is provided with, in this order from its tip end to its rear end, a tip tube portion 15a, a first spring 15x, a screw tube portion 15b, a second spring 15y, a locking tube portion 15c, and a rear end portion 15d.

[0055] The first spring 15x is a spring having a generally spiral shape with a slit on its circumferential surface, and connects the tip tube portion 15a and the screw tube portion 15b.

[0056] At opposing positions on the inner circumferential surface of the screw tube portion 15b, screw projections 15e serving as female screws that screw onto the male screws 4d of the moving body 4 are provided.

[0057] The second spring 15y is formed by connecting a plurality of annular portions 15m spaced apart in the axial direction with a pair of opposing connecting portions 15n, 15n that extend short in the axial direction, and the pair of connecting portions 15n, 15n are arranged offset by 90° around the axis with respect to a pair of connecting portions 15n, 15n adjacent to each other in the axial direction.

[0058] Due to this spring configuration, the spring constant of the second spring 15y is greater than the spring constant of the first spring 15x.

[0059] An engaging protrusion 15f for engaging with the front tube 11 in the axial direction is provided in a circular shape on the outer circumferential surface of the locking tube portion 15c.

[0060] The rear end portion 15d protrudes axially rearward from the rear end of the front tube 11 and is gripped by the user, and multiple (here, eight) ribs 15g are arranged in parallel along the circumferential direction and extend along the axial direction, serving as a non-slip grip for the user.

[0061] 18, the leading tube 11 is elongated in the axial direction behind the step portion 1a shown in FIGS. 3 and 4, and does not have the protrusion 1b for axially engaging with the container body 2. On the other hand, as shown in FIG. 18, an engaging recess 11f is provided in a circular shape for axially engaging with the engaging protrusion 15f of the female screw member 15. The other shapes of the leading tube 11 are the same as those of the leading tube 1 of the first embodiment.

[0062] 21 and 22, the pipe member 13 has a long, large-diameter cylindrical portion 3b extending from the tip portion 3a shown in Figures 7 to 10 to the rear, which is shortened, and the flange portion 3c at the rear end is eliminated. The other shapes of the pipe member 13 are the same as those of the pipe member 3 of the first embodiment.

[0063] Then, as shown in Figures 21 and 22, the core chuck 4a of the movable body 4 is inserted into the pipe member 13, the tip surface of the tip tube portion 15a of the female screw member 15 is abutted against the rear end surface of the pipe member 13, and the screwing protrusions 15e, 15e of the pipe member 13 are screwed into the male screw 4d of the movable body 4.This assembly is then inserted into the front tube 11 as shown in Figure 18, and the engaging convex portion 15f of the female screw member 15 is engaged with the engaging concave portion 11f of the front tube 11 in the axial direction, whereby the female screw member 15 is attached to the front tube 11 so that it cannot move in the axial direction but can rotate relatively around the axis.

[0064] Then, when the user grasps the relative rotation portion (rear end portion) 15d, which protrudes outward in the axial direction from the rear end of the front tube 11 of the female screw member 15 and enables relative rotation with the front tube 11, and rotates relative to the core chuck 4a in the direction of dispensing with the rib 15g acting as an anti-slip, the stick-shaped cosmetic material M is dispensed.

[0065] The stick-type cosmetic material dispensing container 300 of the third embodiment, similar to the first embodiment, comprises a front tube 11 having an opening 1c at the front end, a female screw member 15 having female screw engagement protrusions 15e, 15e on the inside and rotatable relative to the front tube 11, a movable body 4 having male screws 4d on the outer surface that can be engaged with the female screw engagement protrusions 15e, 15e on the female screw member 15 and having a core chuck 4a at the front end for gripping the stick-type cosmetic material M, and a movable body 4 disposed inside the front tube 11 and movable in the axial direction relative to the front tube 11. The second embodiment is provided with a pipe member 13 that is rotatable synchronously around its axis and protrudes from the opening 1c of the front tube 11, and the movable body 4 is housed inside the pipe member 13 so that it is movable in the axial direction and rotatable synchronously around the axis, and an opening 3g is provided at the tip of the pipe member 13 so that the stick-shaped cosmetic M can be inserted and removed.It goes without saying that the second embodiment has the same functions and effects as the first embodiment, as it is provided with a first spring 15x that cushions the pipe member 13 and a second spring 15y that has a different spring constant from the first spring 15x and cushions the core chuck 4a.

[0066] Furthermore, since the spring constant of the second spring 15y is greater than the spring constant of the first spring 15x, the functions of the first spring 15x and the second spring 15y are preferably realized.

[0067] Furthermore, since the first spring 15x and the second spring 15y are formed integrally with the female screw member 15, the number of parts is further reduced compared to the first embodiment.

[0068] FIG. 23 is a cross-sectional view showing a stick-type cosmetic material dispensing container according to a fourth embodiment of the present invention.

[0069] In the fourth embodiment of the stick-type cosmetic dispensing container 400, the stick-type cosmetic dispensing container 300 of the third embodiment is used as a so-called stick-type cosmetic cartridge, and a long, bottomed, cylindrical holder tube 8 is attached to the female screw member 15 via a spring member 9 that is expandable and contractible in the axial direction so as to be synchronously rotatable, thereby forming the stick-type cosmetic dispensing container 400.

[0070] Specifically, multiple protrusions 8g are arranged evenly around the circumferential direction on the inner surface of the holder tube 8, extending longitudinally from the bottom to the tip. These protrusions 8g engage with ribs 15g that form the relative rotation portion of the female screw member 15 in the rotational direction, allowing the female screw member 15 and the holder tube 8 to rotate synchronously.

[0071] According to the fourth embodiment, similar to the second embodiment, the holder tube 8 can be held in the hand while drawing, making it easier to draw and improving usability.

[0072] FIG. 24 is a side view showing a pipe member, a stick-type cosmetic material, and the tip of a front tube of a stick-type cosmetic material dispensing container according to a fifth embodiment of the present invention, and FIG. 25 is a cross-sectional view of FIG.

[0073] The stick-type cosmetic material dispensing container of this fifth embodiment differs from the stick-type cosmetic material dispensing containers 100 to 400 of the first to fourth embodiments in that a pipe member 23 having an inclined portion 23a at the tip end that is inclined relative to the axial direction is used instead of the pipe members 3 and 13. The fifth embodiment will be described with the stick-type cosmetic material M protruding from the tip end surface of the pipe member 23.

[0074] According to the fifth embodiment, when the stick-shaped cosmetic dispensing container faces the part to be applied at an angle, the tip of the pipe member 23 is formed as the inclined portion 23a, so that the tip of the stick-shaped cosmetic M easily hits the part to be applied, and since a component force in the axial direction acts on the stick-shaped cosmetic M, the stick-shaped cosmetic M can be drawn while being moderately retracted by the second springs 5y, 15y, just as in the case where the tip portion perpendicular to the axial direction of the pipe member faces the part to be applied directly.

[0075] FIG. 26 is a cross-sectional view showing the pipe member, the stick-shaped cosmetic material, and the tip of the front tube of a stick-shaped cosmetic material dispensing container according to a sixth embodiment of the present invention.

[0076] The stick-type cosmetic material dispensing container of this sixth embodiment differs from the stick-type cosmetic material dispensing container of the fifth embodiment in that the stick-type cosmetic material M is flush with the tip end surface of the pipe member.

[0077] According to the sixth embodiment, when the stick-shaped cosmetic material dispensing container faces the part to be applied at an angle, the tip portion of the pipe member 23 is formed as the inclined portion 23a, so that the tip of the stick-shaped cosmetic material M and the pipe member 23 easily come into contact with the part to be applied, and because an axial component force acts on the stick-shaped cosmetic material M and the pipe member 23, the pipe member 23 can be suitably retracted by the first springs 6, 15x, and the stick-shaped cosmetic material M can be drawn while being suitably retracted by the second springs 5y, 15y, just as in the case where the tip portion of the pipe member perpendicular to the axial direction faces the part to be applied.

[0078] While the present invention has been specifically described above based on the embodiments thereof, the present invention is not limited to the above embodiments, and for example, in the first embodiment, the first spring 6 is a coil spring and the second spring 5y is a resin spring formed integrally with the female screw member 5, and in the third embodiment, the first spring 15x and the second spring 15y are resin springs formed integrally with the female screw member 15, but the first spring 6 may be a resin spring formed integrally with the female screw member 5 and the second springs 5y, 15y may be coil springs, and in short, it is preferable that at least one of the first spring and the second spring is formed integrally with the female screw members 5, 15. Such a configuration can reduce the number of parts.

[0079] Furthermore, the screw projections 5a and 15e may of course be continuous female screws. [Explanation of symbols]

[0080] 1...front tube, 1c...opening (front tube), 2...container body, 3, 13, 23...pipe member, 3g...opening (pipe member), 4...moving body, 4a...core chuck, 4d...male screw, 5, 15...female screw member, 5a, 15e...screw engagement protrusion (female screw), 5y, 15y...second spring, 6, 15x...first spring, 7, 8...holder tube, 15d...rear end portion (female screw member), 23a...inclined portion, 100, 200, 300, 400...stick-type cosmetic material dispensing container, M...stick-type cosmetic material.

Claims

1. a front tube having an opening at its tip; a female screw member having a female screw formed on the inside thereof and capable of rotating relative to the leading tube; a movable body having a male screw on its outer surface that can be threaded with the female screw of the female screw member and a core chuck at its tip for holding a stick-shaped cosmetic material; a pipe member that is movable in an axial direction relative to the front tube and synchronously rotatable about the axis and that protrudes from the opening of the front tube; a container body attached to the front tube so as to be rotatable relative to the front tube, a rear portion of the pipe member is disposed inside the front tube, the core chuck of the movable body is accommodated inside the pipe member so as to be movable in an axial direction and synchronously rotatable around the axis, and an opening is provided at the tip of the pipe member so as to allow the stick-shaped cosmetic material to enter and exit; A stick-shaped cosmetic dispensing container comprising: a first spring that urges the pipe member forward relative to the female screw to cushion the pipe member; and a second spring that has a spring constant different from that of the first spring and urges the female screw forward relative to the container body to cushion the core chuck.

2. The container body has a cylindrical shape with a bottom, 2. The stick-shaped cosmetic material dispensing container according to claim 1, wherein the container body accommodates the female screw member therein and engages with the female screw member so as to be synchronously rotatable about an axis.

3. A front tube having an opening at its tip; a female screw member having a female screw formed on the inside thereof and capable of rotating relative to the leading tube; a movable body having a male screw on its outer surface that can be threaded with the female screw of the female screw member and a core chuck at its tip for holding a stick-shaped cosmetic material; a pipe member that is movable in an axial direction relative to the front tube and synchronously rotatable about the axis and that protrudes from the opening of the front tube, a rear portion of the pipe member is disposed inside the front tube, the core chuck of the movable body is accommodated inside the pipe member so as to be movable in an axial direction and synchronously rotatable around the axis, and an opening is provided at the tip of the pipe member so as to allow the stick-shaped cosmetic material to enter and exit; The front portion of the female screw member is housed in the front tube, a rear end portion of the female screw member projects outward in the axial direction from a rear end portion of the front tube and serves as a relative rotation portion that allows relative rotation with the front tube, A stick-shaped cosmetic material dispensing container comprising: a first spring that urges the pipe member forward relative to the female screw to cushion the pipe member; and a second spring that has a spring constant different from that of the first spring and urges the female screw forward relative to the relative rotation part to cushion the core chuck.

4. 2. The stick-type cosmetic material dispensing container according to claim 1, wherein the spring constant of the second spring is greater than the spring constant of the first spring.

5. 2. The stick-type cosmetic material dispensing container according to claim 1, wherein at least one of the first spring and the second spring is formed integrally with the female screw member.

6. 2. The stick-type cosmetic material dispensing container according to claim 1, wherein the tip of the pipe member is provided with an inclined portion inclined relative to the axial direction.

7. 2. The stick-shaped cosmetic material dispensing container according to claim 1, further comprising a cylindrical holder tube with a bottom that accommodates the rear portion of the front tube and the female screw member from the rear side and is rotatable in synchronization with the female screw member.

Images