Stick cosmetic dispensing container

Abstract

The present invention provides a rod-shaped cosmetic delivery container that prevents the core material from bending when painting with a rod-shaped cosmetic of a thin core diameter. If the rod-shaped cosmetic M is pressed against the portion to be painted while protruding from the tube member 3, the rod-shaped cosmetic M held by the core clamp 4a retracts the second spring 5y, and the portion to be painted can be painted while protecting the rod-shaped cosmetic M. If the front end of the rod-shaped cosmetic M retreats or is consumed due to painting and becomes flush with the front end of the tube member 3, and the tube member 3 is pressed against the portion to be painted while the rod-shaped cosmetic M does not protrude from the opening 3g of the tube member 3, the portion to be painted is slightly concave and bent into a concave shape, the front end of the rod-shaped cosmetic M contacts the portion to be painted, and the tube member 3 that contacts the periphery of the portion to be painted retreats while retracting the first spring 6, and the rod-shaped cosmetic M protruding from the tube member 3 retracts the second spring 5y, and the portion to be painted can be painted while protecting the rod-shaped cosmetic M.

Description

Technical Field

[0001] The invention relates to a stick-shaped cosmetic material delivery container for delivering the stick-shaped cosmetic material. Background Art

[0002] In the past, in a stick-shaped cosmetic delivery container, when a stick-shaped cosmetic with a thin core diameter is used, the stick-shaped cosmetic is easily bent when painting the portion to be applied, and it is desired to improve this problem. For a stick-shaped cosmetic delivery container, the following patent document 1 is a representative example, and a technology for preventing the stick-shaped cosmetic from being bent due to an impact such as the container falling is relatively well known.

[0003] In Patent Document 1, two springs are contained in the container. For example, when the container falls from the front end direction, the rod-shaped cosmetic material holding unit holding the rod-shaped cosmetic material moves toward the front end direction of the axis, the spring on the front end side is compressed and the spring on the rear end side is extended. The compression and extension of the two springs can buffer the impact, thereby preventing the core material from bending due to the impact of the rod-shaped cosmetic material. In addition, for example, when the container falls from the rear end direction, the rod-shaped cosmetic material holding unit holding the rod-shaped cosmetic material moves toward the rear end direction of the axis, the spring on the front end side is extended and the spring on the rear end side is compressed. The extension and compression of the two springs can buffer the impact, thereby preventing the core material from bending due to the impact of the rod-shaped cosmetic material.

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2018-175244 Summary of the invention

[0006] As described above, although the prior art represented by Patent Document 1 can prevent the core material of the stick-shaped cosmetic material from bending due to falling, etc., there has not been a stick-shaped cosmetic material delivery container that can prevent the core material from bending when painting with a stick-shaped cosmetic material with an extremely fine core diameter.

[0007] Therefore, an object of the present invention is to provide a stick-shaped cosmetic material delivery container which can prevent the core material from bending when painting with a stick-shaped cosmetic material having a small core diameter and is more convenient to use than conventional containers.

[0008] The gist of the present invention is the following [1] to [7].

[0009] [1] A rod-shaped cosmetic delivery container, characterized in that it comprises a front tube, an internal thread component, a movable body and a tube component, the front tube having an opening at the front end, the internal thread component having an internal thread on the inner side and being rotatable relative to the front tube, the movable body having an external thread on the outer surface that can be screwed with the internal thread of the internal thread component, and having a core chuck for holding the rod-shaped cosmetic material at the front end, the tube component being arranged inside the front tube and protruding from the opening of the front tube in a manner that is movable in an axial direction relative to the front tube and synchronously rotatable around the axis, the movable body being accommodated inside the tube component in a manner that is movable in an axial direction and synchronously rotatable around the axis, and having an opening at the front end of the tube component that allows the rod-shaped cosmetic material to enter and exit, and the rod-shaped cosmetic delivery container comprising a first spring for cushioning the tube component, and a second spring having a spring constant different from that of the first spring and cushioning the core chuck.

[0010] According to [1], when the stick-shaped cosmetic material is pressed against the portion to be applied while the stick-shaped cosmetic material is protruding from the tube member, the stick-shaped cosmetic material held by the core clamp causes the second spring to retract, thereby enabling the portion to be applied to be painted while protecting the stick-shaped cosmetic material. When the tube member is pressed against the portion to be applied while the front end of the stick-shaped cosmetic material retreats or is consumed by application and becomes almost flush with the front end of the tube member, and the stick-shaped cosmetic material does not protrude from the opening of the tube member, the portion to be applied is slightly concavely bent, so that the front end of the stick-shaped cosmetic material contacts the portion to be applied, and the tube member in contact with the periphery of the portion to be applied retreats while retracting the first spring, and the stick-shaped cosmetic material protruding from the tube member can paint the portion to be applied while the second spring retracts to protect the stick-shaped cosmetic material. When the painting is finished and the rod-shaped cosmetic delivery container leaves the smeared portion, the first spring is extended due to the force, the tube member moves forward and returns to the original position, and at the same time, the second spring is extended due to the force, the rod-shaped cosmetic advances, and the front end of the rod-shaped cosmetic is consumed due to the painting, and is correspondingly located at a position retreated from the original position. In the case where the front end of the rod-shaped cosmetic is painted a lot and retreats and is hidden in the tube member, the rod-shaped cosmetic held by the core chuck is delivered through the relative rotation of the front tube and the internal thread member, forming a state in which the front end of the rod-shaped cosmetic is flush with the front end of the tube member or protrudes from the front end of the tube member. Therefore, the smeared portion can be painted without causing the rod-shaped cosmetic, especially the rod-shaped cosmetic with a thin core diameter, to extend excessively from the tube member, thereby preventing the core material from bending during painting, and thus, compared with the previous rod-shaped cosmetic delivery container, the convenience of use is better.

[0011] [2] The rod-shaped cosmetic delivery container as described in [1] is a structure that performs the above-mentioned function well. Specifically, it is characterized in that: the rod-shaped cosmetic delivery container has a bottomed cylindrical container body installed on the front tube in a manner that allows relative rotation, and the container body accommodates the internal thread component inside and engages with the internal thread component in a manner that allows synchronous rotation around the axis.

[0012] [3] In addition, the rod-shaped cosmetic delivery container as described in [1] is a structure that plays the above-mentioned role well. Specifically, it is characterized in that: the internal thread component is accommodated in the front tube, the rear end portion of the internal thread component is configured to protrude outward from the rear end portion of the front tube in the axial direction, and the internal thread component is a relatively rotating portion that can rotate relative to the front tube.

[0013] [4] The stick-shaped cosmetic delivery container as described in any one of [1] to [3] is characterized in that the spring constant of the second spring is larger than the spring constant of the first spring, thereby enabling the first spring and the second spring to perform their functions well.

[0014] [5] The stick-shaped cosmetic dispensing container 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 internal thread member. This can reduce the number of components.

[0015] [6] The stick-shaped cosmetic delivery container as described in any one of [1] to [5], characterized in that: an inclined portion inclined relative to the axial direction is provided at the front end of the tube member. Thus, when the stick-shaped cosmetic delivery container is inclined to face the portion to be applied, since the front end of the tube member is provided as the inclined portion, the stick-shaped cosmetic and the tube member, at least the front end of the stick-shaped cosmetic, are easily in contact with the portion to be applied, and the component force in the axial direction acts on the stick-shaped cosmetic and the tube member, at least the stick-shaped cosmetic, so that the stick-shaped cosmetic and the tube member, at least the stick-shaped cosmetic, can be applied while being more appropriately retracted, similar to the case where the front end perpendicular to the axial direction of the tube member faces the portion to be applied.

[0016] [7] The stick-shaped cosmetic delivery container as described in any one of [1] to [6] is characterized in that it includes a bottomed cylindrical retaining tube, the retaining tube covers the rear portion of the front tube and the internally threaded component from the rear side and accommodates the rear portion of the front tube and the internally threaded component inside, and can rotate synchronously with the internally threaded component. As a result, the retaining tube can be held by hand to paint, so that painting is easy and usability can be improved.

[0017] As described above, according to the present invention, it is possible to provide a stick-shaped cosmetic material delivery container that can prevent the core material from bending when painting with a stick-shaped cosmetic material having a small core diameter and is more convenient to use than conventional containers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a side view showing a stick-shaped cosmetic delivery container according to a first embodiment of the present invention.

[0019] Figure 2 For along Figure 1 Cross-sectional view along line II-II.

[0020] Figure 3 For display Figure 1 as well as Figure 2 Side view of the front barrel in.

[0021] Figure 4 For along Figure 3 Cross-sectional view along line IV-IV.

[0022] Figure 5 For display Figure 1 as well as Figure 2 A side view of the container body in FIG.

[0023] Figure 6 For along Figure 5 Cross-sectional view along line VI-VI.

[0024] Figure 7 For display Figure 1 as well as Figure 2 A three-dimensional view of the tube component in FIG.

[0025] Figure 8 for Figure 7 A side view of a tube assembly is shown.

[0026] Fig. 9 For along Figure 7 Cross-sectional view along line IX-IX.

[0027] Fig.10 For along Figure 8 Cross-sectional view of line XX.

[0028] Fig.11 for Figure 2 A cross-sectional view of the front barrel and tube components after assembly.

[0029] Fig.12 For display Figure 2 Side view of the moving body in FIG.

[0030] Fig.13 For display Figure 2Side view of the internal threaded part and side view with the first spring removed.

[0031] Fig.14 For along Fig.13 Cross-sectional view along line XIV-XIV in FIG.

[0032] Fig.15 for Figure 2 Side view of the tube component and the internal thread component after assembly.

[0033] Fig.16 For along Fig.15 Cross-sectional view along line XVI-XVI in FIG.

[0034] Fig.17 It is a cross-sectional view showing a stick-shaped cosmetic delivery container according to a second embodiment of the present invention.

[0035] Fig.18 The present invention is a cross-sectional view showing a stick-shaped cosmetic delivery container according to a third embodiment of the present invention.

[0036] Fig.19 For display Fig.18 Side view of the internal threaded component in FIG.

[0037] Fig. 20 For along Fig.19 Cross-sectional view of line XX-XX.

[0038] Fig.21 for Fig. 20 Side view of the tube component and the internal thread component after assembly.

[0039] Fig. 22 For along Fig.21 Cross-sectional view along line XXII-XXII.

[0040] Fig.23 It is a cross-sectional view showing a stick-shaped cosmetic delivery container according to a fourth embodiment of the present invention.

[0041] Fig.24 The present invention is a side view showing a tube member, a stick-shaped cosmetic material, and a front end portion of a front tube of a stick-shaped cosmetic material delivery container according to a fifth embodiment of the present invention.

[0042] Fig.25 For display Fig.24 A cross-sectional view of the tube member, the stick-shaped cosmetic material, and the front end of the front tube is shown.

[0043] Fig.26 The present invention is a cross-sectional view showing a tube member, a stick-shaped cosmetic material, and a front end portion of a front tube of a stick-shaped cosmetic material delivery container according to a sixth embodiment of the present invention. DETAILED DESCRIPTION

[0044] Below, refer to Figure 1 to Figure 26 , a preferred embodiment of the stick-shaped cosmetic delivery container according to the present invention is described. Figures 1 to 16 , Fig.17 , Figure 18 to Figure 22 , Fig.23 , Fig.24 as well as Fig.25 , Fig.26 A first embodiment of the present invention, a second embodiment of the present invention, a third embodiment of the present invention, a fourth embodiment of the present invention, a fifth embodiment of the present invention, and a sixth embodiment of the present invention are respectively shown. In each figure, the same symbols are used for the same elements, and repeated descriptions are omitted.

[0045] First of all, Figures 1 to 16 The first embodiment shown will be described. Figure 1 as well as Figure 2 In order to show the various figures of the stick-shaped cosmetic delivery container involved in the first embodiment of the present invention, Figure 3 as well as Figure 4 To show the various figures of the front barrel, Figure 5 as well as Figure 6 To show the various figures of the container body, Figure 7 to Figure 10 To show the various figures of the tube components, Fig.11 This is a cross-sectional view of the front cylinder and the tube components after assembly. Fig.12 To show the side view of the moving body, Fig.13 as well as Fig.14 The following are the pictures of the internal threaded part after the first spring is removed. Fig.15 as well as Fig.16 1 and 2 are diagrams of the tube component and the internal thread component after assembly. The stick-shaped cosmetic delivery container of this embodiment is particularly preferably used for applying a stick-shaped cosmetic represented by an eyebrow pencil to an applied portion represented by an eyebrow, and is particularly preferably applied to a stick-shaped cosmetic with a thin core diameter. It should be noted that the stick-shaped cosmetic is not limited to an eyebrow pencil, and can also be applied to eyeliners, lip liners, and other stick-shaped cosmetics.

[0046] like Figure 1 as well as Figure 2As shown, the overall shape of the rod-shaped cosmetic delivery container 100 is a long and thin round rod like a writing tool, and as an appearance shape, it has a front tube 1 on the front side and a container body 2 on the rear side. The rod-shaped cosmetic M and the tube member 3 that is configured to be passed through by the front end of the rod-shaped cosmetic M and can slide (move) within a specified range in the axial direction are accommodated in the front tube 1. A moving body 4 having a core chuck 4a for holding the rod-shaped cosmetic M, an internal thread member 5 screwed with the moving body 4, a first spring 6 for buffering the tube member 3 in the axial direction, and a second spring 5y for buffering the core chuck 4a and the moving body 4 in the axial direction are accommodated in the front tube 1 and the container body 2, and the second spring 5y is included in the internal thread member 5.

[0047] like Figure 3 as well as Figure 4 As shown, the front tube 1 is formed into a stepped cylindrical shape having a step portion 1a on the outer peripheral surface midway in the axial direction, a cylindrical portion with a small diameter connected to the rear side of the step portion 1a is provided as an insertion portion inserted into the container body 2, and a cylindrical portion connected to the front side of the step portion 1a, with a large diameter and formed in a shape that becomes thinner toward the front end, is provided as a gripping portion that protrudes from the front end 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 for mounting on the container body 2 is provided in an annular shape on the outer peripheral surface of the rear side of the step portion 1a of the front tube 1.

[0048] In the front tube 1, as a structure for accommodating the tube component 3, a tube hole is provided which passes through from the opening 1c at the front end to the rear end. The front end side of the tube hole is set as a small diameter tube hole 1d, and the part from the small diameter tube hole 1d to the rear end is set as a large diameter tube hole 1e. In the small diameter tube hole 1d, near the boundary between the large diameter tube hole 1e and the small diameter tube hole 1d, a concave portion 1f with an enlarged diameter is arranged along the circumferential direction. The concave portion 1f has the same diameter as the large diameter tube hole 1e and is connected to the large diameter tube hole 1e. Between the concave portions 1f and 1f along the circumferential direction, a convex portion 1g is provided, and the concave portions 1f and the convex portions 1g are arranged continuously along the circumferential direction (here, 4 each). The convex portion 1g has the same diameter as the small diameter tube hole 1d and is connected to the small diameter tube hole 1d. The above-mentioned concave portion 1f and convex portion 1g are used to engage with the tube component 3 in the rotation direction. The rear end surface of the convex portion 1g is provided as a stepped surface 1h, and the stepped surface 1h is provided as the advancement limit against which the front end surface of the pipe member 3 abuts (see Figure 2 ).

[0049] like Figure 5 as well as Figure 6 As shown, the container body 2 is formed into a bottomed cylindrical shape and has a front end surface that abuts against the step portion 1a of the front tube 1 (see Figure 2). A plurality of (here, four) convex strips 2b for detachably mounting a cover (not shown) are arranged in a circumferential direction in front of a flange portion 2a provided on the outer peripheral surface of the container body 2, and a plurality of dowels 2c are provided in a circumferential direction in front of the convex strips 2b. An external thread 2d for detachably mounting a retaining cylinder 7 of a second embodiment described later is provided on the outer peripheral surface behind the flange portion 2a of the container body 2.

[0050] In the barrel portion between the flange portion 2a and the external thread 2d of the container body 2, a pair of small windows 2e communicating the inside and the outside are opened facing each other, and a locking convex portion 2f protruding in the axial direction is provided on the inner circumferential surface in front of the small window 2e as a structure for engaging with the convex portion 1b of the front barrel 1 in the axial direction. In addition, in the container body 2, a plurality of (here, four) convex strips 2g extending long from the bottom to the front end side are arranged at equal intervals in the circumferential direction on the inner circumferential surface thereof as a structure for engaging with the internal thread member 5 in the rotation direction.

[0051] like Figure 2 As shown, the tube member 3 is inserted into the front tube 1, and a rod-shaped cosmetic material M and a core chuck 4a are inserted therein. Figure 7 to Figure 10 As shown, the front end portion 3a of the pipe member 3 is formed into a cylindrical shape with a small diameter, and the rear of the front end portion 3a is provided with a long cylindrical portion 3b with a large diameter. The rear end of the cylindrical portion 3b is provided with a flange portion 3c for contacting the first spring 6 (see Figure 2 ).

[0052] A plurality of concave and convex portions (here, four each) are continuously formed in the circumferential direction between the front end portion 3a and the cylindrical portion 3b. The convex portion 3d is flush with the cylindrical portion 3b, and is inclined toward the front end side at a descending slope and extends for a predetermined length. The concave portion 3e is provided as a through hole that communicates the inside and the 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 Figure 4 ). Moreover, the front end surface 3f of the cylindrical portion 3b connected to the rear edge of the recess (through hole) 3e (see Figure 7 ) advances and abuts against the stepped surface 1h of the convex portion 1g of the front tube 1 (see Figure 4 ), thus reaching the limit of advancement (see Figure 2 ).

[0053] A cylindrical hole with a circular cross-section extending from the opening 3g at the front end of the front end portion 3a to the rear end is provided in the tube member 3, and is provided as a rod-shaped cosmetic hole 3h that allows the rod-shaped cosmetic material M to move forward or backward. In the cylindrical portion 3b, a holding piece groove 3i for accommodating the later-described holding piece 4f of the movable body 4 and allowing it to slide is connected at multiple locations around the rod-shaped cosmetic hole 3h (here, at four equal locations), and an advance and retreat hole 3j is formed by the above-mentioned rod-shaped cosmetic hole 3h and the holding piece groove 3i, and the rod-shaped cosmetic material M and the holding piece 4f slide in the above-mentioned advance and retreat hole 3j. It should be noted that in the cylindrical portion 3b, the rear half of the advance and retreat hole 3j has a larger diameter than the front half (see Fig. 9 as well as Fig.10 ), this is to make the later-described external thread 4d thicker than the stick-shaped cosmetic material M (see Fig.12 ) can move forward or backward. In addition, the barrel hole 3k at the rear end of the cylindrical portion 3b is set as a circular hole with a specified length and an enlarged diameter, which is to allow the front end of the internal thread component 5 to enter (see Figure 2 ).

[0054] Moreover, if Fig.11 As shown, the tube member 3 is inserted into the front tube 1, and its concave portion 3e enters the convex portion 1g of the front tube 1, and at the same time, its convex portion 3d enters the concave portion 1f of the front tube 1 (see Figure 4 as well as Figure 7 ), thereby, the pipe member 3 is configured to be able to rotate synchronously with the front tube 1 and to be able to move in the axial direction. Fig.11 In the state shown, the front end surface 3f of the pipe member 3 is shown to abut against the step surface 1h of the convex portion 1g of the front tube 1 (see Figure 4 ) and is in a state of forward limit.

[0055] like Fig.12 As shown, the movable body 4 includes a core chuck 4a for supporting the rear end of the rod-shaped cosmetic material M, a rod 4b located at the rear side of the core chuck 4a, and a shaft body 4c located at the rear side of the rod 4b. The shaft body 4c is a long shaft extending rearward in the axial direction, and an external thread 4d is provided on the outer peripheral surface of the shaft body 4c. The external thread 4d extends in the axial direction and is screwed with a screwing protrusion 5a as an internal thread of the internal thread component 5.

[0056] The core chuck 4a includes a base 4e and a holding piece 4f. The base 4e has an outer shape that is substantially consistent with the outer shape of the rod-shaped cosmetic material M and is used to abut the rear end face of the rod-shaped cosmetic material M. The holding piece 4f is set to protrude toward the front end side at multiple positions (here, four equal positions) on the circumferential direction of the outer peripheral surface of the base 4e, and sandwiches the rear end of the rod-shaped cosmetic material M abutting on the base 4e and holds it. The rod 4b has a convex portion 4g at the rear position of the holding piece 4f, and the convex portion 4g extends to the rear of the axial direction in a manner that can move in the same axial direction as the holding piece 4f. The core chuck 4a and the rod 4b are provided with a thin-diameter portion, so that the core chuck 4a becomes easy to bend.

[0057] Here, the internal thread member 5 is formed of a resin such as Fig.13 as well as Fig.14 As shown, it is formed into a roughly cylindrical shape. On the inner circumferential surface of the front end of the internal thread component 5, screwing protrusions 5a as internal threads that are screwed with the external threads 4d of the moving body 4 are respectively provided at opposite positions. A notch 5b is provided from the front end of the internal thread component 5 to the rear. The notch 5b is provided at a position separated from the screwing protrusion 5a in the circumferential direction and extends to the rear of the screwing protrusion 5a, so that the cantilever piece having the screwing protrusion 5a, which is in the shape of an arc in the axial direction, has elasticity.

[0058] The enlarged diameter portions 5c and 5d are provided at the approximately center and rear end of the internal thread member 5 in the axial direction, and the concave portions 5e and convex portions 5f are continuously arranged in a gear-like manner and are respectively provided at four equal positions with the same phase in the circumferential direction of the enlarged diameter portions 5c and 5d, and the front and rear concave portions 5e and 5e are provided as a structure for engaging with the convex strip 2g of the container body 2 in the rotation direction (see Figure 6 ). In addition, a second spring 5y is provided between the enlarged diameter portions 5c and 5d of the internal thread member 5. The second spring 5y is a resin spring having a notch on the peripheral surface and integrally formed into a substantially spiral shape. The first spring 6 (see Figure 2 ) is a coil spring, and the spring constant of the second spring 5y as a resin spring is larger than the spring constant of the first spring 6 as a coil spring.

[0059] Moreover, if Fig.15 as well as Fig.16 As shown, insert the core chuck 4a into Fig.11 In the combination of the front tube 1 and the tube member 3 obtained in Fig.15 as well as Fig.16 The front tube 1 is omitted). The stick-shaped cosmetic material M is held by the core clamp 4a in advance. Then, the holding piece 4f of the core clamp 4a is received in the holding piece groove 3i of the tube member 3 (see Fig. 9 as well as Fig.10) is inserted into the front tube 1 and the pipe member 3 so that the core clamp 4a is mounted on the front tube 1 and the pipe member 3 in a manner that allows synchronous rotation and movement in the axial direction.

[0060] In this state, with the first spring 6 arranged between the rear end surface of the flange portion 3c of the pipe component 3 and the enlarged diameter portion 5c of the internal thread component 5, the external thread 4d of the core clamp 4a is screwed and tightened with the threaded protrusions 5a, 5a of the internal thread component 5, thereby installing the first spring 6 between the rear end surface of the flange portion 3c of the pipe component 3 and the enlarged diameter portion 5c of the internal thread component 5.

[0061] Moreover, if Figure 2 As shown in FIG. 1 , the container body 2 is pressed into the front tube 1 in such a manner that the convex strip 2g of the container body 2 enters the front and rear concave portions 5e, 5e of the internal thread member 5, so that the front end surface of the container body 2 abuts against the step portion 1a of the front tube 1, and the locking convex portion 2f of the container body 2 (see FIG. 1 ) is locked. Figure 6 ) is engaged with the convex portion 1b of the front tube 1 along the axial direction, so that the front tube 1 is mounted to the container body 2 in a manner that it cannot move along the axial direction but can rotate relatively around the axis. In this state, the second spring 5y abuts against the bottom of the container body 2.

[0062] In this state, the tube member 3 is subjected to the urging force of the first spring 6, and the front end face 3f of the tube member 3 abuts against the stepped surface 1h of the convex portion 1g of the front tube 1, thereby reaching the limit of advancement, and the front end portion 3a of the tube member 3 protrudes from the front tube 1 by a predetermined length. Here, the state in which the rod-shaped cosmetic material M is flush with the front end face of the tube member 3 is regarded as the initial state.

[0063] Thus, according to the first embodiment, there are a front tube 1, an internal thread component 5, a movable body 4 and a tube component 3, wherein the front tube 1 is provided with an opening 1c at the front end; the internal thread component 5 is provided with a screw-in protrusion 5a as an internal thread on the inner side and can rotate relative to the front tube 1; the movable body 4 is provided with an external thread 4d which can be screwed with the screw-in protrusion 5a of the internal thread component 5 on the outer surface, and a core clamp 4a for holding a rod-shaped cosmetic material M is provided at the front end; the tube component 3 is arranged inside the front tube 1, and protrudes from the opening 1c of the front tube 1 in a manner that can move along the axial direction and can rotate synchronously around the axis relative to the front tube 1, the movable body 4 is accommodated in the inside of the tube component 3 in a manner that can move along the axial direction and can rotate synchronously around the axis, and an opening 3g for allowing the rod-shaped cosmetic material M to enter and exit is provided at the front end of the tube component 3, and further comprises a first spring 6 for buffering the tube component 3, and a second spring 5y having a spring constant different from that of the first spring 6 and buffering the core clamp 4a.

[0064] Therefore, the following functions / effects can be exerted. That is, first, Figure 2 Starting from the initial state shown, when the front end of the rod-shaped cosmetic material M is slightly sent out and applied to the portion to be applied, the front tube 1 and the internal thread member 5 (substantially the container body 2) are relatively rotated in the sending direction of the core clamp 4a. And, if the rod-shaped cosmetic material M is pressed against the portion to be applied, the rod-shaped cosmetic material M held by the core clamp 4a will cause the second spring 5y to retract, so that the portion to be applied can be painted while protecting the rod-shaped cosmetic material M.

[0065] In addition, if the tube member 3 is pressed against the smeared portion when the front end of the rod-shaped cosmetic material M retreats or is consumed due to application and becomes almost flush with the front end of the tube member 3, and the rod-shaped cosmetic material M does not protrude from the opening 3g of the tube member 3, the smeared portion will be slightly depressed and bent into a concave shape, so that the front end of the rod-shaped cosmetic material M will contact the smeared portion, and the tube member 3 in contact with the surrounding area of ​​the smeared portion will retreat while retracting the first spring 6, and the rod-shaped cosmetic material M protruding from the tube member 3 can paint the smeared portion while retracting the second spring 5y to protect the rod-shaped cosmetic material M.

[0066] Moreover, when the painting is finished and the rod-shaped cosmetic material delivery container 100 is separated from the smeared portion, the first spring 6 is extended due to the force, and the tube member 3 advances and returns to the original forward limit position (the position where the front end face 3f abuts against the step surface 1h). At the same time, the second spring 5y is extended due to the force, and the rod-shaped cosmetic material M advances. The front end of the rod-shaped cosmetic material M is consumed due to the painting and is located at a position retreated from the original position accordingly. In the case where the front end of the rod-shaped cosmetic material M retreats due to excessive painting and is hidden in the tube member 3, the rod-shaped cosmetic material M held by the core chuck 4a is delivered by the relative rotation of the front tube 1 and the internal threaded member 5 (substantially the container body 2), forming a state in which the front end of the rod-shaped cosmetic material M is flush with the front end of the tube member 3 or protrudes from the front end of the tube member 3.

[0067] Therefore, the portion to be applied can be painted without excessively protruding the stick-shaped cosmetic material M, especially the stick-shaped cosmetic material M with a thin core diameter, from the tube member 3, thereby preventing the core material from bending during painting. In addition, as described above, painting can be performed even when the stick-shaped cosmetic material M does not protrude from the opening 3g of the tube member 3, so the convenience of use is better than that of the conventional stick-shaped cosmetic material delivery container.

[0068] In addition, according to the first embodiment, the rod-shaped cosmetic delivery container has a bottomed cylindrical container body 2 which is mounted on the front tube 1 in a manner that allows relative rotation. The container body 2 is a structure that accommodates the internal thread component 5 inside and engages with the internal thread component 5 in a manner that allows synchronous rotation around the axis, so that the above-mentioned function can be well performed.

[0069] Furthermore, since the spring constant of the second spring 5 y is larger than the spring constant of the first spring 6 , the functions of the first spring 6 and the second spring 5 y can be well realized.

[0070] Furthermore, the second spring 5y is formed integrally with the internal thread member 5, so the number of components can be reduced.

[0071] Here, an example of a method for manufacturing a stick-shaped cosmetic material M assembled in a stick-shaped cosmetic material delivery container 100 is described. The length of the stick-shaped cosmetic material M used is manufactured to reach the length of the front end of the front tube 1 (see Figure 2 ) to the front end of the base 4e of the core clamp 4a (see Fig.12 ) to the length. In addition, see Figure 2 The axial length between the front end of the front end portion 3a of the tube member 3 and the front end of the front tube 1 (the axial length between the opening 3g of the tube member 3 and the opening 1c of the front end of the front tube 1, referred to as x) and Fig.12 The length in the axial direction between the front end of the holding piece 4f of the core chuck 4a and the front end of the base 4e (see also Figure 2 , referred to herein as y), is the same as, or shorter than, the length in the axial direction between the front end of the holding piece 4f of the core chuck 4a and the front end of the base 4e.

[0072] Furthermore, the following, refer to Figure 2 , the manufacturing method will be described. After the above-mentioned rod-shaped cosmetic material M is inserted from the opening 3g of the tube member 3 and the front end of the rod-shaped cosmetic material M protrudes from the front end of the tube member 3 by, for example, 1 mm, a clamp is used to press the rod-shaped cosmetic material M together with the tube member 3 until the clamp abuts against the front end of the front tube 1. In this way, the rear end surface of the rod-shaped cosmetic material M abuts against the front end of the base 4e of the core clamp 4a and is held by the holding piece 4f. Then, when the clamp is removed, the tube member 3 moves forward while leaving the rod-shaped cosmetic material M in the core clamp 4a, and returns to the position of the initial state. It should be noted that when the rod-shaped cosmetic material M is assembled using the manufacturing method described herein, a space corresponding to x is immediately left between the front end of the rod-shaped cosmetic material M and the opening 3g of the tube member 3 after assembly, but Figure 2 After that, the movable body 4 is sent out so that the rod-shaped cosmetic material M is formed into a state flush with the front end surface of the tube member 3.

[0073] Here, in the case where the axial length x between the front end of the tube member 3 and the front end of the front tube 1 is greater than the axial length y from the front end of the holding piece 4f to the front end of the base 4e, when the stick-shaped cosmetic material M is pressed from the opening 3g of the tube member 3 using the above-mentioned clamp, the rear end surface of the stick-shaped cosmetic material M may abut against the front end of the base 4e and be crushed before the clamp abuts against the front end of the front tube 1. It should be noted that even in the case where the axial length x between the front end of the tube member 3 and the front end of the front tube 1 is slightly longer than the axial length y from the front end of the holding piece 4f to the front end of the base 4e, the stick-shaped cosmetic material M may not be crushed due to its flexibility.

[0074] Fig.17 It is a cross-sectional view showing a stick-shaped cosmetic delivery container according to a second embodiment of the present invention.

[0075] In the rod-shaped cosmetic delivery container 200 of the second embodiment, the rod-shaped cosmetic delivery container 200 is constructed in the following manner: the rod-shaped cosmetic delivery container 100 of the first embodiment is used as a so-called rod-shaped cosmetic tube, and a longer bottomed cylindrical retaining tube 7 is removably (or non-removably) installed on the container body 2 constituting the rod-shaped cosmetic tube.

[0076] The stick-shaped cosmetic delivery container 200 is constructed by connecting an internal thread 7a formed on the inner circumferential surface of the front end of the holding tube 7 and an external thread 2d (see FIG. Figure 5 as well as Figure 6 ) screw together.

[0077] According to the second embodiment, the holding tube 7 can be held for painting, so it is easy to paint and can improve the usability. It should be noted that the holding tube 7 covers the rear part of the front tube 1 and the internal threaded component 5 from the rear side and accommodates the rear part of the front tube 1 and the internal threaded component 5 inside, and is formed into a bottomed cylindrical shape that can rotate synchronously with the internal threaded component 5. For example, the cylindrical part of the container body 2 can also be extended further to the rear and used as the holding tube 7.

[0078] Fig.18 1 is a cross-sectional view showing a stick-shaped cosmetic delivery container according to a third embodiment of the present invention. Fig.19 as well as Fig. 20 To show the various figures of internal threaded parts, Fig.21 as well as Fig. 22 These are various views of the pipe component and the internal thread component after assembly.

[0079] The main differences between the stick-shaped cosmetic material delivery container 300 of the third embodiment and the stick-shaped cosmetic material delivery container 100 of the first embodiment are as follows: Fig.19as well as Fig. 20 As shown, the rod-shaped cosmetic delivery container 300 of the third embodiment uses an internal threaded component 15 including a first spring 15x and a second spring 15y to replace the internal threaded component 5 including the second spring 5y, and accordingly, a front tube 11 and a tube component 13 with slightly changed structures are used to replace the front tube 1 and the tube component 3.

[0080] The internal thread member 15 is integrally formed of resin in a substantially cylindrical shape and includes a front end tube portion 15a, a first spring 15x, a threaded tube portion 15b, a second spring 15y, a locking tube portion 15c, and a rear end portion 15d in order from the front end side toward the rear end side.

[0081] The first spring 15x is a spring having a notch on the peripheral surface and formed in a substantially spiral shape, and connects the distal end cylindrical portion 15a and the threaded cylindrical portion 15b.

[0082] Screw-engaging projections 15 e are provided at mutually opposing positions on the inner peripheral surface of the screw cylinder portion 15 b , respectively. The screw-engaging projections 15 e serve as internal threads that are screwed with the external threads 4 d of the moving body 4 .

[0083] The second spring 15y is a structure that connects multiple annular portions 15m spaced apart in the axial direction through a pair of connecting portions 15n, 15n that extend relatively short in the axial direction and are opposite to each other, and the above-mentioned pair of connecting portions 15n, 15n are configured to be offset 90° around the axis relative to a pair of connecting portions 15n, 15n adjacent to the axial direction.

[0084] Due to the spring having the above-mentioned structure, the spring constant of the second spring 15y is larger than the spring constant of the first spring 15x.

[0085] An engaging projection 15f for engaging with the front tube 11 in the axial direction is provided in an annular shape on the outer peripheral surface of the locking tube portion 15c.

[0086] The rear end portion 15d is a structure that protrudes axially rearward from the rear end of the front tube 11 and is pinched by the user. Here, a plurality of (here, 8) ribs 15g are arranged circumferentially and extend in the axial direction and are provided as anti-slip portions pinched by the user.

[0087] like Fig.18 As shown, the front tube 11 Figure 3 as well as Figure 4 The rear side of the step portion 1a shown is extended in the axial direction and does not have a convex portion 1b for engaging with the container body 2 in the axial direction. Fig.18 As shown, the engaging recess 11f for engaging with the engaging projection 15f of the internal thread member 15 in the axial direction is provided in an annular shape. It should be noted that the other shapes of the front barrel 11 are the same as those of the front barrel 1 of the first embodiment.

[0088] like Fig.21 as well as Fig. 22 As shown, for the tube component 13, shorten Figure 7 to Figure 10 The front end portion 3a shown has a long cylindrical portion 3b with a larger diameter behind it, and does not have a flange portion 3c at the rear end. The other shapes of the pipe member 13 are the same as those of the pipe member 3 of the first embodiment.

[0089] Moreover, if Fig.21 as well as Fig. 22 As shown, the core chuck 4a of the moving body 4 is inserted into the pipe member 13, the front end surface of the front end barrel portion 15a of the internal thread member 15 abuts against the rear end surface of the pipe member 13, and at the same time, the screwing protrusions 15e, 15e of the pipe member 13 are screwed with the external thread 4d of the moving body 4, as shown in FIG. Fig.18 As shown, the assembly is inserted into the front tube 11, and the engaging protrusion 15f of the internal thread component 15 is engaged with the engaging recess 11f of the front tube 11 along the axial direction. As a result, the internal thread component 15 is mounted on the front tube 11 in a manner that it cannot move along the axial direction but can rotate relatively around the axis.

[0090] Furthermore, when the relatively rotating portion (rear end portion) 15d of the internal thread component 15, which protrudes outward from the rear end of the front tube 11 in the axial direction and enables relative rotation with the front tube 11, is pinched by the user, the rib 15g is used as an anti-slip component and rotates relatively in the delivery direction of the core chuck 4a, the rod-shaped cosmetic M is delivered.

[0091] In the rod-shaped cosmetic delivery container 300 of the third embodiment thus constructed, it also has a front tube 11, an internal thread component 15, a movable body 4 and a tube component 13 in the same manner as the first embodiment, the front tube 11 is provided with an opening 1c at the front end, the internal thread component 15 is provided with screw-engaging protrusions 15e, 15e as internal threads on the inner side, and can rotate relative to the front tube 11, the movable body 4 is provided with an external thread 4d on the outer surface that can be screwed with the screw-engaging protrusions 15e, 15e as the internal threads of the internal thread component 15, and a core clamp 4a for holding the rod-shaped cosmetic M is provided at the front end, and the tube component 13 is arranged at the front The movable body 4 is housed in the tube member 13 in a manner that it can move in the axial direction and can rotate synchronously around the axis, and an opening 3g is provided at the front end of the tube member 13 for allowing the rod-shaped cosmetic material M to enter and exit. The rod-shaped cosmetic material delivery container also includes a first spring 15x for buffering the tube member 13 and a second spring 15y having a spring constant different from that of the first spring 15x and for buffering the core clamp 4a. Therefore, it can also exert the same function / effect as the first embodiment.

[0092] Furthermore, since the square of the spring constant of the second spring 15y is larger than that of the first spring 15x, the functions of the first spring 15x and the second spring 15y can be well achieved.

[0093] Furthermore, since the first spring 15 x and the second spring 15 y are formed integrally with the internal thread member 15 , the third embodiment can further reduce the number of components compared to the first embodiment.

[0094] Fig.23 It is a cross-sectional view showing a stick-shaped cosmetic delivery container according to a fourth embodiment of the present invention.

[0095] For the rod-shaped cosmetic delivery container 400 of the fourth embodiment, the rod-shaped cosmetic delivery container 400 is constructed in the following manner: the rod-shaped cosmetic delivery container 300 of the third embodiment is used as a so-called rod-shaped cosmetic tube, and a longer bottomed cylindrical retaining tube 8 is installed so as to be able to rotate synchronously with the internal threaded part 15 through a spring part 9 that can be extended and retracted along the axial direction.

[0096] Specifically, a plurality of ridges 8g are arranged equidistantly in the circumferential direction on the inner circumferential surface of the retaining cylinder 8, and the ridges 8g extend longer from the bottom toward the front end side. By engaging the ridges 8g with the ribs 15g of the internal thread component 15 that constitute the relative rotating portion in the rotation direction, the retaining cylinder 8 can rotate synchronously with the internal thread component 15.

[0097] According to the fourth embodiment, similarly to the second embodiment, the holder tube 8 can be held for painting, so painting is easy and usability can be improved.

[0098] Fig.24 The present invention is a side view showing a tube member, a stick-shaped cosmetic material, and a front end portion of a front tube of a stick-shaped cosmetic material delivery container according to a fifth embodiment of the present invention. Fig.25 for Fig.24 sectional view of .

[0099] The stick-shaped cosmetic material delivery container of the fifth embodiment is different from the stick-shaped cosmetic material delivery containers 100 to 400 of the first to fourth embodiments in that the stick-shaped cosmetic material delivery container of the fifth embodiment uses a tube member 23 having an inclined portion 23a whose front end portion is inclined relative to the axial direction instead of the tube members 3 and 13. In addition, the fifth embodiment is described in a state where the stick-shaped cosmetic material M protrudes from the front end surface of the tube member 23.

[0100] According to the fifth embodiment, when the rod-shaped cosmetic material delivery container is tilted toward the portion to be applied, since the front end portion of the tube member 23 is set as the tilted portion 23a, the front end of the rod-shaped cosmetic material M is easy to contact the portion to be applied, and the component force in the axial direction acts on the rod-shaped cosmetic material M. Therefore, similar to the case where the front end portion perpendicular to the axial direction of the tube member is facing the portion to be applied, painting can be performed while the rod-shaped cosmetic material M is more appropriately retracted by the second springs 5y and 15y.

[0101] Fig.26 The present invention is a cross-sectional view showing a tube member, a stick-shaped cosmetic material, and a front end portion of a front tube of a stick-shaped cosmetic material delivery container according to a sixth embodiment of the present invention.

[0102] The stick-shaped cosmetic material delivery container of the sixth embodiment is different from the stick-shaped cosmetic material delivery container of the fifth embodiment in that the stick-shaped cosmetic material M is flush with the front end surface of the tube member.

[0103] According to the sixth embodiment, when the rod-shaped cosmetic material delivery container is tilted toward the portion to be applied, since the front end portion of the tube member 23 is set as the tilted portion 23a, the rod-shaped cosmetic material M and the front end of the tube member 23 are easily in contact with the portion to be applied, and the component force in the axial direction acts on the rod-shaped cosmetic material M and the tube member 23. Therefore, similar to the case where the front end portion perpendicular to the axial direction of the tube member is facing the portion to be applied, painting can be performed while the tube member 23 is more appropriately retracted by the first spring 6, 15x and the rod-shaped cosmetic material M is more appropriately retracted by the second spring 5y, 15y.

[0104] The present invention has been specifically described above based on the embodiments of the present invention, but the present invention is not limited to the above embodiments. For example, in the first embodiment, the first spring 6 is set as a coil spring and the second spring 5y is set as a resin spring formed integrally with the internal thread component 5. In the third embodiment, the first spring 15x and the second spring 15y are set as resin springs formed integrally with the internal thread component 15. However, the first spring 6 may be set as a resin spring formed integrally with the internal thread component 5, and the second springs 5y and 15y may be set as coil springs. In short, it is preferred that at least one of the first spring and the second spring is formed integrally with the internal thread components 5 and 15. According to the above structure, the number of components can be reduced.

[0105] Furthermore, the threaded protrusions 5a and 15e may of course be continuous internal threads.

[0106] Explanation of symbols

[0107] 1…front cylinder, 1c…opening (front cylinder), 2…container body, 3, 13, 23…tube component, 3g…opening (tube component), 4…moving body, 4a…core chuck, 4d…external thread, 5, 15…internal thread component, 5a, 15e…screw-on protrusion (internal thread), 5y, 15y…second spring, 6, 15x…first spring, 7, 8…holding cylinder, 15d…rear end portion (internal thread component), 23a…inclined portion, 100, 200, 300, 400…rod-shaped cosmetic material delivery container, M…rod-shaped cosmetic material.

Claims

1. A stick-shaped cosmetic delivery container, characterized in that: have: A front cylinder, wherein the front cylinder is provided with an opening at the front end; An internal thread component, the internal thread component is provided with an internal thread on the inner side and is rotatable relative to the front cylinder; A movable body, the movable body having an outer thread on its outer surface that can be screwed with the inner thread of the inner thread component, and a core chuck for holding a rod-shaped cosmetic material at the front end; as well as a pipe member disposed inside the front tube and projecting from the opening of the front tube in a manner movable in an axial direction relative to the front tube and rotatable synchronously around the axis, The core chuck includes a base for contacting the rear end surface of the rod-shaped cosmetic material, and a holding piece that is provided on the outer peripheral surface of the base and protrudes toward the front end side and clamps the rear end of the rod-shaped cosmetic material to hold it. The tube member is provided with a holding piece groove for accommodating the holding piece and enabling the holding piece to slide. By accommodating the holding piece in the holding piece groove, the movable body is accommodated in the tube member in a manner that it can move along the axial direction and can rotate synchronously around the axis, and an opening is provided at the front end of the tube member so that the stick-shaped cosmetic material can enter and exit. The stick-shaped cosmetic material delivery container includes a first spring that cushions the tube member and urges the enlarged diameter portion provided on the internal thread member backward, and a second spring that has a spring constant different from that of the first spring and cushions the core chuck.

2. The stick-shaped cosmetic delivery container according to claim 1, characterized in that: The stick-shaped cosmetic delivery container includes a bottomed cylindrical container body mounted on the front tube in a relatively rotatable manner. The container body accommodates the internal thread member therein and is engaged with the internal thread member in a manner that allows for synchronous rotation around an axis.

3. The stick-shaped cosmetic delivery container according to claim 1, characterized in that: The internal thread component is accommodated in the front tube, The rear end portion of the internal thread member is provided as a relatively rotatable portion that protrudes outward in the axial direction from the rear end portion of the front tube and is relatively rotatable with respect to the front tube.

4. The stick-shaped cosmetic delivery container according to any one of claims 1 to 3, characterized in that: The spring constant of the second spring is larger than the spring constant of the first spring.

5. The stick-shaped cosmetic delivery container according to any one of claims 1 to 3, characterized in that: At least one of the first spring and the second spring is formed integrally with the internal thread member.

6. The stick-shaped cosmetic delivery container according to any one of claims 1 to 3, characterized in that: The pipe member has a front end portion provided with an inclined portion inclined with respect to the axial direction.

7. The stick-shaped cosmetic delivery container according to any one of claims 1 to 3, characterized in that: The stick-shaped cosmetic delivery container includes a bottomed cylindrical holding tube, which covers the rear portion of the front tube and the internal thread component from the rear side and accommodates the rear portion of the front tube and the internal thread component inside, and can rotate synchronously with the internal thread component.

Images