Rotating dispenser

Abstract

To provide a turning stick container which is equipped with a function of retracting a solid core delivered from a toe shaft back into the toe shaft to house therein and which is also equipped with a vaporization suppressing function for the solid core containing a volatile component.SOLUTION: The turning stick container is composed of: a screw rod 8 which moves forward or rearward inside a shaft cylinder 3 by the relative rotation of the toe shaft 1 and the rear shaft 2; and a rod-like member (solid core) 5 which is arranged in the front part inside the shaft cylinder and which moves in the axial direction side the toe shaft by relying on the forward or rearward movement of the screw rod. The rod-like member is installed inside a holder 6 and, along the front end periphery of the screw rod situated in the rear part of the rod-like member, an annular elastic member 12 is installed and pushed by the front movement of the screw rod, with the rod-like member moving inside the holder, and with the rod-like member thereby delivered from the front end part of the shaft. Also, by the rearward movement of the screw rod, in a state that the elastic member installed in the screw rod is in pressure contact with the inner face of the holder, the rod-like member moves rearward inside the toe shaft together with the holder.SELECTED DRAWING: Figure 1A

Description

[Technical field]

[0001] The present invention relates to a rotary dispenser container for use as a stick-shaped cosmetic container, writing implement, applicator, etc., in which a stick-shaped member such as a stick-shaped cosmetic, a stick-shaped writing implement, or a stick-shaped applicator is dispensed from the container. [Background technology]

[0002] 2. Description of the Related Art Various types of cosmetic implements are available in which, for example, a stick-shaped cosmetic material is stored in a rotary dispenser container and the required amount of the stick-shaped cosmetic material is dispensed from the front end of a front barrel for use. Among these, in the case of solid-core eyeliners for applying cosmetics to eyebrows etc., there have been proposals for the cross-sectional shape perpendicular to the axial direction of the solid core to be elliptical or oval, whereby by changing the orientation of the solid core, the thickness of the line of cosmetics applied in one go can be selected according to preference.

[0003] Such rotary dispenser containers housing a solid core eyeliner having an elliptical or oval cross-sectional shape are disclosed in Patent Documents 1 and 2. However, in the rotary dispensing containers disclosed in Patent Documents 1 and 2, the solid lead is configured to be dispensed in one direction, and therefore it is impossible to return the solid lead dispensed from the front end of the front barrel by the dispensing operation back into the front barrel.

[0004] On the other hand, although the cross-sectional shape of the solid lead is not elliptical or oval as described above, a rotary dispenser that can return the dispensed solid lead into the front barrel has been proposed, and this is disclosed in Patent Document 3. The rotary dispenser container disclosed in Patent Document 3 is provided with a rod that moves forward or backward by rotating the rear barrel relative to the front barrel, and as the rod moves forward, the solid lead is pushed by the rod and dispensed from the front barrel. Furthermore, as the rod is retracted, the front end of the rod pulls the inner tube disposed outside the solid core, and this pulling action returns the solid core into the front barrel. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2016-220916 A [Patent Document 2] JP 2016-220917 A [Patent Document 3] JP 2003-204823 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, many of the solid cores housed in this type of rotary dispenser container contain volatile components, and even the above-mentioned solid-core eyeliners have the problem that the solid core hardens due to the evaporation of solvents and the like, resulting in a decrease in functionality. Therefore, it is an important issue to take measures to suppress the evaporation of the solid core contained in the rotary dispenser.

[0007] This invention has been made with attention to the above-mentioned problems in mind, and its main object is to provide a rotary dispensing container that has the function of returning and storing a solid lead dispensed from the front barrel into the front barrel, that also has a vaporization suppression function (sealing properties) for solid leads that contain volatile components, and that can also smoothly cause the solid lead to protrude and retract at the front end of the front barrel. [Means for solving the problem]

[0008] The rotary dispensing container of the present invention, which has been made to solve the above-mentioned problems, is a rotary dispensing container comprising a barrel in which a cylindrical lead barrel and a cylindrical rear barrel are configured to be rotatable relative to one another, a threaded rod disposed at the rear of the barrel and moving forward or backward within the barrel in response to the relative rotation of the lead barrel and the rear barrel, and a rod-shaped member disposed at the front of the barrel and moving axially within the lead barrel depending on the forward or backward movement of the threaded rod, wherein the rod-shaped member is attached within a holder which covers the outer periphery of the rod-shaped portion, and an annular elastic member is attached along the outer periphery of the front end of the threaded rod located at the rear of the rod-shaped member, and the rod-shaped member moves within the holder as it is pushed by the forward movement of the threaded rod, thereby dispensing the rod-shaped member from the front end of the lead barrel, and wherein the rearward movement of the threaded rod causes the rod-shaped member to retract within the lead barrel together with the holder, with the elastic member attached to the threaded rod being pressed against the inner surface of the holder. The elastic member refers to a member formed of a material having viscoelasticity, such as rubber or elastomer.

[0009] In this case, in one preferred embodiment, a threaded body having a female thread is disposed within the rear axle, which threads into a male thread formed on the threaded rod to move the threaded rod forward or backward within the axle tube, and a configuration is adopted in which a resilient member is housed between the threaded rod and the rear axle.

[0010] In addition, it is desirable that the cross section perpendicular to the axial direction of the rod-shaped member, the holder, and at least the portion of the front barrel that houses the rod-shaped member each have an elliptical or oval shape.

[0011] Furthermore, it is desirable that a cap be provided that is attached to the front barrel to cover the front barrel, and that a recessed space be formed in at least one of the front barrel or the cap at a position where the front barrel and the cap come into contact.

[0012] In addition, preferably, a stopper is formed on the inner surface of the front end of the front barrel to prevent the holder from moving forward, and the dimension A from the front end of the holder to the front end of the front barrel when the holder is in contact with the stopper is set to less than 10% of the length dimension B of the rod-shaped member in an unused state. Effect of the Invention

[0013] The rotary dispensing container of the present invention is provided with a threaded rod that moves forward or backward within a barrel due to relative rotation between the front barrel and the rear barrel, and a ring-shaped elastic member is attached along the outer periphery of the front end of the threaded rod. Then, pushed by the forward movement of the threaded rod, the rod-shaped member moves within the holder and is extended from the front end of the front shaft, and at the same time, by the backward movement of the threaded rod, the elastic member attached to the threaded rod can be pressed against the inner surface of the holder, causing the rod-shaped member to be retracted into the front shaft together with the holder.

[0014] In this case, the elastic member attached to the threaded rod, together with the threaded rod, securely blocks the rear of the holder, thereby fully performing the evaporation suppression function (sealing properties) for the volatile components contained in the rod-shaped member inside the holder. In addition, the elastic member attached to the threaded rod retreats while being pressed against the inner surface of the holder, thereby reliably drawing in the solid lead advanced from the front barrel together with the holder, thereby providing a rotary dispensing container which smoothly facilitates the advance and retreat of the solid lead at the front end of the front barrel. [Brief description of the drawings]

[0015] [Figure 1A] 1A and 1B show a state in which a cap is attached to a rotary dispensing container according to the present invention, in which (A) is an external view and (B) is a cross-sectional view taken along the axial direction. [Figure 1B] FIG. 1B is a partially enlarged cross-sectional view of (B) in FIG. 1A. [Diagram 2] 1 is a perspective view showing a rotary dispensing container with the cap removed and a rod-shaped member dispensed. FIG. [Diagram 3] 3A and 3B are cross-sectional views of the rotary dispensing container in the state shown in FIG. 2, where (A) and (B) are cross-sectional views taken along the axial direction and cut at planes that are 90 degrees apart from each other. [Figure 4] 4A and 4B are cross-sectional views of the rotary dispensing container in a state where the rod-shaped member has been retracted into the barrel from the state shown in FIG. 3, (A) and (B) being cross-sectional views along the axial direction taken along planes that are 90 degrees apart from each other. [Diagram 5] 1A and 1B are cross-sectional views of a rotary dispensing container in a state in which all of the rod-shaped members have been used (consumed), and (A) and (B) are cross-sectional views taken along the axial direction and cut at planes that are 90 degrees apart from each other. [Figure 6A] The individual components of the front barrel are shown, with (A) being an oblique view and (B) being an oblique view from a different perspective. [Figure 6B] FIG. 1 shows the individual components of the front barrel, with (A) and (B) being cross-sectional views along the axial direction taken at planes that are 90 degrees apart from each other, and (C) being an enlarged cross-sectional view of part a surrounded by a chain line in (B). [Figure 7] FIG. 1 shows the individual components of the holder, where (A) is a perspective view, (B) is a perspective view from a different viewpoint, and (C) and (D) are cross-sectional views along the axial direction cut at planes that are 90 degrees apart from each other. [Figure 8] The individual components of the center shaft are shown, where (A) is a perspective view, (B) is a perspective view from a different perspective, (C) is a top view, and (D) is a cross-sectional view along the axial direction. [Figure 9] 1 shows the individual components of a threaded rod, where (A) is a perspective view, (B) is a front view, (C) is a top view, and (D) is a cross-sectional view along the axial direction. [Figure 10] 1 shows the individual components of the screw body, where (A) is a perspective view, (B) is a perspective view from a different perspective, (C) is a front view, and (D) is a cross-sectional view along the axial direction. [Figure 11] The figure shows the individual components of the rear axle, with (A) being a cross-sectional view taken along the axial direction, and (B) being a cross-sectional view taken in the direction of the arrow from line EE shown in (A). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A rotary dispensing container according to the present invention will be described based on an embodiment of a cosmetic tool that uses a solid-core eyeliner as the rod-shaped member contained within the container. In the drawings shown below, the same parts are indicated by the same symbols, but in some drawings, due to space limitations, symbols are assigned to representative parts, and details are explained by quoting the symbols assigned to each drawing showing the individual component configuration.

[0017] As shown in FIG. 1A, the rotary dispensing container according to the present invention comprises a cylindrical front barrel 1 and a cylindrical rear barrel 2 with a bottom attached to each other so as to be rotatable relative to each other to form a barrel tube 3. Cap 4, which is formed in a cylindrical shape with a bottom, is attached to front barrel 1 so as to cover the front of front barrel 1 and be removably attached in the axial direction, and as shown in FIG. 1A(A), its appearance is configured to form a cylindrical body with approximately the same diameter in the longitudinal direction.

[0018] A solid core eyeliner 5 (hereinafter, may be simply referred to as solid core 5) as a rod-shaped member is housed within the front barrel 1. Note that this solid core 5 is attached within a holder 6 that covers its outer periphery, and a part of the holder 6 is disposed in contact with the inside of the front barrel 1. In this embodiment, a piston 7 that is slidable against the inner surface of the holder 6 is housed in the rear end of the holder 6, and this piston is pushed by a screw rod 8 (described later) to advance the solid core 5 in the holder 6 from the front end of the front barrel 1. In other words, the piston 7 also functions as a sealing member for the rear side of the solid core 5.

[0019] A threaded rod 8 is disposed to the rear of the solid core 5 and piston 7, and this threaded rod 8 moves forward or backward within barrel tube 3 due to the relative rotation of rear barrel 2 with respect to front barrel 1. The forward or backward movement of this threaded rod 8 is effected by a threaded body 9 disposed within rear barrel 2 and a center shaft 11 attached by being press-fitted into the rear end of front barrel 1. In this embodiment, as will be explained later, the portion of the front barrel 1 in which the solid core 5 is housed, the solid core 5 and holder 6, the piston 7 and the front half of the threaded rod 8 each have an elliptical cross section perpendicular to the axial direction.

[0020] In addition, an annular elastic member (O-ring) 12 is attached along the outer periphery of the front end of the threaded rod 8, and this O-ring 12 slides against the inner surface of the holder 6 and moves forward within the holder 6 when the threaded rod 8 moves forward, and also acts to push the solid core 5 forward from the holder 6 via the piston 7 at the tip of the threaded rod 8. Furthermore, when the threaded rod 8 moves backward, the O-ring 12 operates to move the solid lead 5 backward within the front barrel 1 together with the holder 6 with the O-ring 12 being in pressure contact with the inner surface of the holder 6 .

[0021] In addition, a resilient member (coil spring) 13 is attached in the space between the inner surface of the rear axle 2 and the threaded rod 8, between the bottom (rear end) of the rear axle 2 and the rear end of the threaded body 9. This resilient member 13 imparts an appropriate weight to the rear barrel 2, thereby enabling a stable application operation when drawing an eyeliner on the eyebrows with the tip of the rod-shaped member (solid core eyeliner) 5. It is possible to use, for example, a metal weight instead of this resilient member, but by using a coil spring in a slightly contracted state as the resilient member 13, it is possible to eliminate axial play and use it as a stable weight that does not produce noise such as collision sounds between the rear axle 2.

[0022] Figures 6A to 11 show the individual configurations of the components used in the rotary dispensing container shown in Figure 1A, and each configuration will be described below with reference to Figures 6A to 11. Figures 6A and 6B show the individual configuration of front barrel 1, which has a cylindrical section 1a at its rear end, and a small diameter section 1b with a slightly reduced diameter formed in front of cylindrical section 1a. An opening 1c is formed at the tip of small diameter section 1b, and the cross section perpendicular to the axis of small diameter section 1b and opening 1c are elliptical. A step 1d is formed that reduces the inner diameter from the inner surface of small diameter portion 1b toward opening 1c, and this step 1d engages the front end of holder 6 attached inside front barrel 1, functioning as a stopper that prevents holder 6 from moving forward. Therefore, hereinafter, step 1d will be referred to as the stopper.

[0023] An annular overhang portion 1e is formed on the inner surface of the cylindrical portion 1a on the side of the small diameter portion 1b, and this is used as a fitting portion when the center shaft 11, which will be described later, is attached by press-fitting. In addition, positioning recesses 1f equipped with guide portions that narrow toward the front are formed at positions 180 degrees opposite each other on the inner surface of the cylindrical portion 1a. This pair of positioning recesses 1f is used for axial alignment when the center shaft 11 is press-fitted into the cylindrical portion 1a. At a position in the small diameter portion 1b adjacent to the cylindrical portion 1a, a cylindrical inner surface 1g having a uniform inner diameter along the axial direction is formed.

[0024] Figure 7 shows the individual configuration of holder 6 housed within front barrel 1 shown in Figures 6A and 6B. This holder 6 is formed in an elliptical shape and includes solid lead housing portion 6a that houses solid lead 5 therein, and a short-axis shaped cylindrical portion 6c with an O-ring mounting groove 6b formed at its rear end. An O-ring 14 shown in FIG. 1A and FIGS. 3 to 5 is attached to the O-ring attachment groove 6b and is disposed so as to be in sliding contact with the cylindrical inner surface 1g formed on a part of the front barrel 1.

[0025] The solid core 5 loaded in the holder 6 contains a volatile component as an eyeliner, and examples thereof include volatile silicones (cyclopentasiloxane, methyltrimethicone, dimethicone, etc.), volatile hydrocarbons (isododecane, light isoparaffin, etc.), and film-forming resins that dissolve in these solvents. Note that preferred examples of the solid core 5 used as an eyeliner will be described later.

[0026] FIG. 8 shows the structure of center barrel 11, which is attached to the rear end of front barrel 1 by press-fitting. The center shaft 11 has a threaded rod insertion hole 11a formed at its front end, and this threaded rod insertion hole 11a is formed in a similar elliptical or rectangular shape so that an elliptical shaft body 8a formed in the front half of the threaded rod 8 described later can be inserted therethrough.

[0027] Further, on the center shaft 11, from the front end to the rear end, there are formed, in that order, a circumferentially protruding annular rib 11b, a pair of protrusions 11c formed on both outer sides of the shaft, a mounting groove 11d for an O-ring, and a circumferentially protruding annular rib 11e. The annular rib 11b engages with an overhang portion 1e formed within cylindrical portion 1a of front barrel 1, and acts so that center barrel 11 is attached and fitted to the rear end portion of front barrel 1 by press fitting.

[0028] The pair of protrusions 11c are respectively inserted into a pair of positioning recesses 1f formed in cylindrical portion 1a of front barrel 1, and are used for aligning front barrel 1 and center barrel 11 in the axial direction. Furthermore, an O-ring 15 shown in Fig. 1A and Figs. 3 to 5 is mounted in the O-ring mounting groove 11d and is brought into sliding contact with the inner circumferential surface of the rear axle 2, which will be described later, in the axial rotation direction. Furthermore, an annular rib 11e that protrudes in the circumferential direction near the rear end of center shaft 11 acts as a stopper for rear axle 2 that is attached to the rear end of center shaft 11 to prevent it from slipping out.

[0029] Fig. 9 shows the structure of a single threaded rod 8. The front half of this threaded rod 8 constitutes an elliptical shaft body 8a whose cross section perpendicular to the axis is elliptical, and an O-ring mounting groove 8b is formed at its tip. An annular elastic member (O-ring) 12 is mounted in this mounting groove 8b as shown in Fig. 1A. The rear half of the threaded rod 8 has a cross section formed in a nearly circular shape, with male threads 8c formed along both the top and bottom surfaces, and flat surfaces 8d formed in the longitudinal direction along both side surfaces.

[0030] 10 shows a single component structure of the threaded body 9, which is formed in a cylindrical shape and has a female thread 9a formed on the inner peripheral surface of the rear end of the threaded body 9. This female thread 9a is to be screwed into the male thread 8c of the threaded rod 8 shown in FIG. Further, a plurality of anti-rotation ribs 9b are formed along the axial direction on the outer periphery of the front end portion of the threaded body 9, and these ribs 9b are formed at approximately equal intervals in the circumferential direction.

[0031] 11 shows the single-piece configuration of the rear axle 2, which is formed into a cylindrical shape with a closed rear end. A plurality of vertical ribs 2a are formed on the inner peripheral surface near the opening of the front end at approximately equal intervals along the inner peripheral surface. When these multiple vertical ribs 2a are inserted into the rear axle 2 with the rear end side where the female thread 9a of the threaded body 9 is formed as the head, the anti-rotation rib 9b of the threaded body 9 engages with the vertical rib 2a inside the rear axle 2. As a result, the screw body 9 is locked in the rear axle 2 and prevented from rotating.

[0032] An annular rib 2b is formed so as to protrude from the inner circumferential surface at a position closer to the front end opening than the positions at which the plurality of vertical ribs 2a are formed. The annular rib 2b protruding from this inner peripheral surface overcomes the annular rib 11e formed on the rear end of the center axle 11 in the axial direction, thereby preventing the center axle 11 and the rear axle 2 from coming loose and connecting them so as to allow relative rotation. Incidentally, the front end of center barrel 11 is press-fitted into front barrel 1, so that front barrel 1 and rear barrel 2 are configured to be capable of relative rotation.

[0033] To assemble the rotary dispensing container shown in Fig. 1A using the components shown in Fig. 6A to Fig. 11, first, O-ring 14 is attached to holder 6, in which solid core 5 and piston 7 are loaded, and the holder is inserted into front barrel 1. Next, center barrel 11, which has O-ring 15 already attached thereto, is pressed into the rear end of front barrel 1. This forms the front barrel unit.

[0034] Meanwhile, an O-ring 12 is attached to the tip of the threaded rod 8, and the threaded body 9 is screwed onto the threaded rod 8. A resilient member (coil spring) 13 is attached around the threaded rod 8, and the threaded rod 8 is inserted into the rear axle 2. As a result, the anti-rotation rib 9b of the threaded body 9 is engaged with the vertical rib 2a in the rear axle 2, and the rear axle unit is formed.

[0035] The tip of threaded rod 8 constituting the rear body unit is passed through threaded rod insertion hole 11a of center shaft 11 constituting the front body unit, and the rear body unit is pushed axially into the front body unit. As a result, annular rib 2b formed on rear axle 2 that constitutes the rear axle unit climbs over annular rib 11e of center axle 11 that constitutes the front axle unit, and the front axle unit and the rear axle unit are connected in a linear manner. Then, by attaching cap 4 to front barrel 1, the rotary dispensing container shown in FIG. 1 can be assembled.

[0036] 2 and 3 show the state in which cap 4 has been removed and solid lead 5 as a rod-shaped member has been advanced from front barrel 1. To advance solid lead 5 in this manner, rear barrel 2 is rotated clockwise relative to front barrel 1. This causes threaded body 9 inside rear barrel 2 to rotate in the same direction. Threaded rod 8 screwed into this threaded body 9 has elliptical shaft body 8a at its front end inserted into threaded rod insertion hole 11a of center shaft 11, preventing axial rotation, so that as threaded body 9 rotates clockwise, threaded rod 8 advances.

[0037] Meanwhile, the front end of holder 6, which houses solid lead 5, abuts against stopper 1d formed on front barrel 1 and is prevented from moving forward, so that solid lead 5 inside holder 6 moves forward within holder 6 via piston 7 as threaded rod 8 moves forward. As a result, the tip of solid lead 5 is drawn out from front end opening 1c of front barrel 1.

[0038] FIG. 4 shows a state in which solid lead 5, which has been extended from front barrel 1, has been returned into front barrel 1. In this return operation, rear barrel 2 is rotated counterclockwise relative to front barrel 1. This causes threaded body 9 inside rear barrel 2 to rotate in the same direction, and threaded rod 8, whose axial rotation has been prevented, retreats within barrel cylinder 3 as threaded body 9 rotates counterclockwise. As the threaded rod 8 retracts, an annular elastic member (O-ring) 12 attached to the tip of the threaded rod 8 pulls the holder 6 while being pressed against the inner surface of the holder 6. Therefore, the drawn-out solid lead 5 retracts together with the holder 6 into the front barrel 1 and is stored therein.

[0039] 4 shows the state where the threaded rod 8 is moved all the way back and the rear end of the threaded rod 8 is in contact with the bottom of the rear axle 2. However, the holder 6 is also moved back and in contact with the front end of the center axle 11, so the elastic member 12 attached to the tip of the threaded rod 8 is positioned inside the moved back holder 6 and maintains a state where it is in pressure contact with the inner surface of the holder 6. Therefore, according to this embodiment, the rear end side of the holder 6 can fully perform the evaporation suppression function (sealing property) for the volatile solvent contained in the solid core 5 inside the holder 6.

[0040] FIG. 5 shows a state in which all of the solid lead 5 housed within the front barrel 1 has been used up. That is, as shown in the figure, threaded rod 8 is disposed in the most forward position, and in this state, piston 7 is positioned in the vicinity of front end opening 1c of front barrel 1.

[0041] Incidentally, when a cosmetic tool uses a solid-core eyeliner as the rod-shaped member contained in the above-mentioned rotary dispensing container, repeated use of the cosmetic tool causes part of the cosmetic material (bulk) as solid core 5 to adhere to front barrel 1. Then, repeated attachment and detachment of cap 4 to front barrel 1 causes a problem in that part of the bulk accumulates at the position of front barrel 1 where the inner surface of cap 4 comes into contact. This bulk solidifies over time, which can cause cap 4 to stick to front barrel 1, making it difficult to remove cap 4.

[0042] To solve the above-mentioned problems, in the rotary dispensing container described above, an annular recessed space 1h is formed on the side of front barrel 1 where front barrel 1 and cap 4 come into contact, as shown in an enlarged view of a portion of front barrel 1 in (C) of FIG. 6B. 1B, the annular recessed space 1h is formed in a position facing the open end of the cap 4 when the cap 4 is attached to the front barrel 1. As a result, the annular recessed space 1h functions as an escape groove into which the aforementioned bulk enters. The presence of this relief groove makes it possible to prevent a large amount of bulk from accumulating between front barrel 1 and cap 4, particularly at the position where they come into contact as a surface, and to avoid the problem of cap 4 sticking to front barrel 1.

[0043] The recessed space 1h described above is not limited to the portion shown in (C) of Figure 6B, but may be formed in another position where the inner surface of the front barrel 1 and the cap 1 contact. Furthermore, the recessed space may be formed on the inner surface side of the cap 4. In other words, by forming the recessed space in at least one of front barrel 1 and cap 4 at a position where front barrel 1 and cap 4 contact each other, it is possible to contribute to resolving the problem of cap 4 sticking to front barrel 1.

[0044] Furthermore, according to the embodiment described above that is provided with the recessed space 1h into which the bulk described above fits, it is possible to reduce dirt on the front barrel 1 caused by the bulk, thereby reducing dirt on the hands of a user who uses the cosmetic tool. Furthermore, during the resin molding of the front barrel 1, the recessed space 1h acts to prevent sink marks, which can provide a secondary effect of improving molding stability.

[0045] On the other hand, in the cosmetic tool shown in this embodiment which uses a solid-core eyeliner, when solid core 5 is returned into front barrel 1, the tip of solid core 5 is contained within front barrel 1 with a predetermined amount protruding from within holder 6, as shown in Figure 4. According to this, if the cosmetic tool is accidentally dropped and subjected to an impact, problems such as cracking or breaking may occur in the solid core 5 at the tip portion protruding from inside the holder 6. Therefore, in order to eliminate problems such as lead breakage, it is desirable to set the length dimension of the solid core 5 protruding from inside the holder 6 as small as possible.

[0046] The length dimension of solid lead 5 protruding from within holder 6 in the state shown in Figure 4 depends on the dimension A from the front end of holder 6 to the front end 1j of front barrel 1 when holder 6 is in contact with stopper 1d formed on the inner surface of front barrel 1, as shown in Figure 1B. That is, it is desirable to set the dimension A as small as possible, and in this embodiment, the dimension A is set to less than 10% of the length dimension B of the rod-shaped member 5 in an unused state. By setting the relationship between dimensions A and B as described above, the amount of solid lead 5 protruding from within holder 6 is reduced, which contributes to providing a cosmetic tool that is less susceptible to problems such as breakage of solid lead 5 due to impact, etc.

[0047] A preferred embodiment of the solid stick cosmetic material forming the above-mentioned solid core eyeliner is as follows. This solid stick-type cosmetic preparation contains at least 60 to 90% by mass of a powder component, a fixing resin component, a silicone solvent, and a wax component, and is characterized in that the powder components are a pigment and a filler. The pigment used in the embodiment is not particularly limited as long as it is an inorganic pigment, an organic pigment, or the like that is used in cosmetics. In order to obtain a powdery application feel as a cosmetic, a plate-shaped pigment is preferably used.

[0048] Examples of plate-like pigments include at least one type (each alone or a mixture of two or more types, the same applies hereinafter) of mica, mica titanium, carmine-coated mica titanium, chromium oxide-coated mica titanium, iron oxide-coated mica titanium, iron oxide-carmine-coated mica titanium, iron oxide-princess blue-coated mica titanium, blue-coated mica titanium, Prussian blue-coated mica titanium, red iron oxide-coated mica titanium, red iron oxide-carmine-coated mica titanium, red iron oxide-iron oxide-coated mica titanium, red iron oxide-princess blue-coated mica titanium, and luster pigments having a metal or metal oxide coated on a base material of glass flakes or aggregate flakes.

[0049] From the viewpoint of uniformity of the coating film and applicability, preferably, iron oxide-coated mica titanium, mica titanium, and blue-coated mica titanium are mentioned, and in particular, iron oxide-coated mica titanium and mica titanium are preferably used. More preferably, these plate-like pigments are lipophilically treated with a lipophilizing agent. As the lipophilic treatment, it is preferable to use a lipophilizing agent such as dimethicone (dimethylpolysiloxane), hydrogen dimethicone, lauroyl lysine, stearic acid, stearic acid modification, amino acid, amino acid modification, etc., and it is particularly preferable to use a silicone-based oil such as dimethicone or hydrogen dimethicone.

[0050] In these plate-like pigments, the average particle size is preferably 5 to 100 μm, and more preferably 5 to 20 μm. In the embodiments (including the examples described later), the "average particle size" refers to the particle size observed with an optical microscope or an electron microscope, and in the case of plate-like pigments, the average particle size refers to the particle size in the large diameter direction of the plate. Although there is usually concern that adding too much of these tabular pigments may result in reduced strength, application performance, and usability, it has been found that in order to overcome these performance declines through interactions with other blended ingredients and, conversely, to obtain favorable strength, application performance, and usability, a content of 10 to 50% by mass (hereinafter, "% by mass" will simply be referred to as "%") relative to the total amount of the solid stick cosmetic is preferable. It has also been found that a content of 15 to 35% is even more preferable. If the content of this flat pigment is less than 10%, it will be difficult to obtain a product that has sufficient strength for practical use while still allowing good application properties for blending over the eyebrows. On the other hand, it is preferable to keep the content at 50% or less in terms of application performance (of lines) on the skin and usability.

[0051] In addition, from the viewpoint of coloring as a cosmetic, pigments other than the plate-shaped pigments can also be used. Examples of pigments that can be used include at least one of the following pigments: titanium oxide, iron black, carbon black, Prussian blue, ultramarine, Blue No. 1, red iron oxide, yellow iron oxide, chromium oxide, chromium hydroxide, zinc oxide, zirconium oxide, cobalt oxide, fish scale foil, bismuth oxychloride, Blue No. 2, Blue No. 404, Red No. 201, Red No. 202, Red No. 220, Red No. 102, Red No. 104, Yellow No. 4, and Yellow No. 4 Al Lake. In addition, these pigments may also be lipophilic-treated pigments as long as they can be lipophilic-treated as described above. The content of this pigment (excluding the above-mentioned tabular pigment) is suitably adjusted within the range of the total content of the pigment, the above-mentioned tabular pigment, and the extender, as described below.

[0052] The filler used in the solid stick cosmetic of the embodiment is not particularly limited, and any filler used in conventional solid stick cosmetic can be used. For example, white fillers such as spherical resin particles, boron nitride, kaolin, talc, calcium carbonate, sericite, zinc oxide, hydroxyapatite, lauroyl lysine, etc., or colored fillers can be used depending on the hue of the stick cosmetic, and of course a mixture of several of these can also be used. In particular, it is preferable to use at least one of spherical resin particles, such as silicone rubber powder, nylon powder, and silicone composite powders coated with these [(vinyl dimethicone / vinyl methicone silsesquioxane) crosspolymer], alone or in combination with other fillers, in view of their physical properties and shape. In particular, the average particle size of the spherical resin particles is preferably 5 to 30 μm, more preferably 5 to 20 μm.

[0053] The total content of the powder components consisting of the filler, the plate-like pigment, and the pigment is preferably 60 to 90%, and more preferably 70 to 85%, of the total amount of the solid stick cosmetic. If the total content of the powder components consisting of the filler, the plate-like pigment, and the pigment is less than 60%, it is not possible to obtain a product with good applicability for shading lines on eyebrows, while if it exceeds 90%, it is not preferable because the strength is too weak or too brittle to withstand practical use. The content of the bodying agent is preferably 5 to 15% based on the total amount of the solid stick cosmetic preparation.

[0054] The adhesive resin component used in the embodiment exhibits high powder dispersibility and is used as a film-forming auxiliary, and examples of such components include acrylic silicone, trimethylsiloxysilicate, etc. Acrylic silicone is preferred from the standpoint of adhesiveness, coatability, etc. Specific examples of the fixing resin component that can be used include at least one of (acrylates / behenyl acrylate / dimethicone methacrylate) copolymer, (acrylates / stearyl acrylate / dimethicone methacrylate) copolymer, acrylates / ethylhexyl acrylate / dimethicone methacrylate) copolymer, and trimethylsiloxysilicate.

[0055] The total content of these adhesive resin components is preferably 1 to 15%, and more preferably 3 to 10%, based on the total amount of the powder components. If the total content of the adhesive resin components is less than 1%, a uniform coating film with good adhesive strength cannot be obtained, whereas if it exceeds 15%, the coating lines will be brittle. Examples of silicone solvents that can be used in the embodiments include silicone solvents such as diphenyl dimethicone, diphenylsiloxyphenyl trimethicone, aminopropyl dimethicone, (stearoxymethicone / dimethicone) copolymer, and simethicone. The content of these silicone solvents is preferably 1 to 20%, more preferably 1 to 10%, of the total amount of the solid stick cosmetic from the viewpoints of usability and cosmetic durability. If the content of this silicone solvent is less than 1%, it is difficult to obtain a good application property for shading lines on eyebrows, while if it exceeds 20%, it is too weak and brittle to withstand practical use. It is preferable to use a silicone solvent with a viscosity of 10 mPa·s or more and less than 1,000 mPa·s in an environment of 25°C. The measurement is performed using a Toki Sangyo B-type viscometer (TVB-10), spindle TM3, and the viscosity is measured after 30 seconds at 30 revolutions.

[0056] The wax component used in the embodiment is not particularly limited as long as it is a wax component used in solid stick-type cosmetics, and examples thereof include at least one of hydrocarbon waxes having 26 to 33 carbon atoms, ceresin wax, polyethylene wax, paraffin wax, jojoba wax, carnauba wax, synthetic wax, fatty acid triglycerides, sucrose fatty acid esters, behenic acid, stearic acid, behenyl alcohol, glyceryl tribehenate, dipentaerythritol fatty acid esters, Japan wax, petrolatum, ethylene glycol monostearate, hydrogenated castor oil, octyldodecyl lanolin fatty acid, and ethylene glycol monostearate.

[0057] From the viewpoints of application property and gloss, the above-mentioned hydrocarbon waxes are preferable. The content of these wax components is desirably 0.5 to 10%, preferably 1 to 5%, based on the total amount of the solid stick cosmetic preparation. If the content of these wax components is less than 0.5%, it becomes difficult for the core of the solid stick-type cosmetic material to retain its shape, while if it exceeds 10%, a good feeling of application on the eyebrows cannot be obtained, which is undesirable.

[0058] Furthermore, in addition to the above-mentioned components, the solid stick type cosmetic preparation of the embodiment preferably contains a gelling agent, an oily component, etc., and may further contain appropriate amounts of optional components used in ordinary solid stick type cosmetic preparations, such as preservatives, ultraviolet absorbers, chelating agents, moisturizing agents, antioxidants such as vitamin E (tocopherol acetate), beauty ingredients, fragrances, etc., within the scope of the embodiment that does not impair the effects of the embodiment. Gelling agents that can be used include glyceryl tri(behenate / isostearate / eicosanedioate), candelilla wax hydrocarbons, and the like. The content of this gelling agent is preferably 0.1 to 5%, and more preferably 0.5 to 2.0%, based on the total amount of the solid stick-type cosmetic preparation.

[0059] In addition, the oily components that can be used are not particularly limited, and examples thereof include at least one of diisostearyl malate, neopentyl glycol diethylhexanoate, sunflower oil, castor oil, squalane, tri-2-ethylhexaneglyceryl, neopentyl glycol di-2-ethylhexanoate, sorbitan sesquioleate, olive oil, jojoba oil, macadamia nut oil, polyglyceryl-2 triisostearate, neopentyl glycol dicaprate, capryl eicosenoate, diisopropyl dinolate, isopropyl palmitate, and tri(caprylic acid / capric acid)glyceryl, etc. The total content of these oily components is preferably 0 to 15%, more preferably 2 to 10%, based on the total amount of the solid stick cosmetic, from the viewpoints of usability and smooth application.

[0060] The solid stick-type cosmetic preparation of the embodiment can be produced by adding and kneading the above powder components (body filler, plate-like pigment, pigment other than plate-like pigment), adhesive resin component, silicone solvent, wax component, gelling agent, oily component, etc., and extruding the kneaded mixture to produce a desired solid stick-type cosmetic preparation of any shape and size, such as a rectangular parallelepiped, cylindrical, prismatic, etc. Alternatively, the above plate-like pigment and a pigment other than the plate-like pigment and the above lipophilic agent, i.e., a lipophilic agent selected from dimethicone, lauroyl lysine, etc., can be thoroughly kneaded, and further adding and kneading the body filler, adhesive resin component, silicone solvent, wax component, gelling agent, oily component, etc., and extruding the kneaded mixture to produce a desired solid stick-type cosmetic preparation of any shape and size, such as a rectangular parallelepiped, cylindrical, prismatic, etc. In particular, the solid stick-type cosmetic composition of the embodiment provides a solid stick-type cosmetic composition suitable for eyebrows and the like, which has strength that does not impair practical use characteristics, even when used in a core-advancing container with a diameter of less than 6 mm.

[0061] In the solid stick cosmetic of the embodiment thus configured, by kneading 60-90% of the powder component containing at least the pigment and the filler, the adhesive resin component, the silicone solvent, and the wax component and molding the mixture into a solid stick cosmetic, a solid stick cosmetic can be obtained that has a practical range of mechanical strength such as breaking strength, is excellent in blending over eyebrows, has excellent adhesion to eyebrows, can draw lines on the skin, has excellent stability over time, especially at high temperatures, and does not generate powder on the surface after time. Also, by subjecting the pigment containing the plate-like pigment to lipophilic treatment and kneading and molding it with the filler and materials other than the powder, a solid stick cosmetic with further improved properties can be obtained.

[0062] The reason why the solid stick-type cosmetic preparation of the embodiment is able to exhibit the above-mentioned properties despite having a high powder component content of 60 to 90%, including pigments and bodying agents, is presumed to be as follows. That is, the solid stick cosmetic of the embodiment contains 60 to 90% by mass of powder components including at least pigments and body materials, a fixing resin component, a silicone solvent, and a wax component. The fixing resin component uniformly disperses each component, thereby making it possible to keep mechanical strength such as breaking strength within a practical range. Furthermore, a large amount of uniformly dispersed powder components are point-bonded by the wax component, and crumble due to the light frictional force of application, making it excellent for blending on eyebrows and having excellent adhesion to eyebrows. Furthermore, its shape makes it possible to draw lines on the skin. It has excellent stability over time, especially at high temperatures. In addition, since there is a large amount of powder components and there is little distribution of wax components on the core surface, the phenomenon of powdering on the surface over time does not occur.

[0063] In the embodiment of the rotary dispensing container of the present invention described above, the piston 7 arranged within the holder 6 is used as a sealing member for the volatile components contained in the solid core 5, but this is not necessarily required, and the elastic member 12 attached to the tip of the threaded rod 8 can slide against the inside of the holder 6 to provide a sufficient evaporation suppression function. In addition, the elastic member 12 attached to the tip of the threaded rod 8 can perform a pulling operation for the holder 6 while being in pressure contact with the inner peripheral surface of the holder 6 as the threaded rod 8 retracts. This makes it possible to provide a rotary dispensing container that can smoothly cause solid lead 5 to protrude and retract at the front end of front barrel 1.

[0064] In the above-described embodiment, the solid lead 5 as a rod-shaped member, the holder 6 that houses the solid lead 5, at least the portion of the front barrel 1 that houses the solid lead 5, and the elliptical shaft body 8a in the front half of the threaded rod 8 each have an elliptical cross section perpendicular to the axial direction, but the same effect can be obtained even if these are configured to have an oval shape, for example.

[0065] The revolving dispenser container of the present invention as described above can be used for a wide variety of applications, including solid cosmetic products such as eyebrow products, eyeliners and lip liners, writing implements such as colored pencils and pencils, and quasi-drugs for moisturizing the corners of the mouth, lips, etc., and can be utilized as a revolving dispenser container that can store these and be used as appropriate. [Explanation of symbols]

[0066] 1 front axis 1d Stopper (step) 1h Recessed space 1j Front end of tip shaft 2 rear axle 3 shaft cylinder 4 Cap 5 Rod-shaped member (solid core) 6 Holder 7 Piston (sealing material) 8 Threaded Rod 8c Male thread 9 Threaded body 9a Female thread 11 Center axis 12 Annular elastic member (O-ring) 13 Elastic member (coil spring)

Claims

1. A rotary dispensing container comprising: a barrel in which a cylindrical front barrel and a cylindrical rear barrel are configured to be relatively rotatable; a threaded rod disposed at the rear of the barrel and adapted to move forward or backward within the barrel in response to relative rotation between the front barrel and the rear barrel; and a rod-shaped member disposed at the front of the barrel and adapted to move axially within the front barrel in response to the forward or backward movement of the threaded rod, The rod-shaped member is mounted in a holder that covers the outer periphery of the rod-shaped member, and an annular elastic member is mounted along the outer periphery of the front end portion of the threaded rod that is located at the rear of the rod-shaped member, The rod-shaped member is pushed by the forward movement of the threaded rod and moves within the holder, so that the rod-shaped member is advanced from the front end of the front barrel, and the rod-shaped member retracts within the front barrel together with the holder as the threaded rod retracts, with the elastic member attached to the threaded rod being in pressure contact with the inner surface of the holder; A threaded body having a female thread is disposed within the rear axle and is threadedly engaged with a male thread formed on the threaded rod to move the threaded rod forward or backward within the axle tube, and a resilient member is accommodated between the threaded rod and the rear axle, The rod-shaped member, the holder, and at least the rod-shaped member housing portion of the tip barrel each have an elliptical or oval cross section perpendicular to the axial direction, When the threaded rod moves forward, the elastic member slides against the inner surface of the holder and moves forward within the holder, and acts to push the rod-shaped member forward from the holder via the piston at the tip of the threaded rod, and when the threaded rod moves backward, the elastic member presses against the inner surface of the holder and operates to move the rod-shaped member backward within the front shaft together with the holder, The said elastic member, together with the threaded rod, closes the rear portion of the said holder.

2. 2. The rotary dispensing container according to claim 1, further comprising a cap attached to the front barrel to cover the front barrel, and a recessed space is formed in at least one of the front barrel and the cap at a position where the front barrel and the cap come into contact with each other.

3. The rotary dispensing container according to claim 1 or 2, characterized in that the stick-shaped member is a solid stick-shaped cosmetic material, which contains at least 60 to 90% by mass of a powder component, a fixing resin component, a silicone solvent, and a wax component, and the powder component is a pigment and a filler.

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