Stick-shaped cosmetic dispenser

Abstract

To protect a rod shaped cosmetic from impact and reduce a size of a container.SOLUTION: A shaft center of a first plate part 3e on a rear end of a tip side joint member 3a, and a shaft center of a second plate part 3m on a tip of a rear end side joint member 3b are coupled by a shaft shaped connection part 3c, and around the connection part 3c of at least one of the first and second plate parts 3e, 3m, there are provided slits 3q, 3s having a start end and a termination, penetrating in an axial direction, and providing elasticity, thereby forming plate springs 3r, 3t. When impact is applied to fall the rod shaped cosmetic delivery container 100 and advance the rod-shaped cosmetic M, a movable body 8 is engaged to the tip side joint member 3a in the axial direction through a female screw member 6 and a sleeve 5, and therefore, the planar plate springs 3r, 3t are shrunk in the axial direction for absorbing the impact.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] In conventional stick-type cosmetic dispensing containers, when the container is dropped or otherwise subjected to an impact, the impact is transmitted to the stick-type cosmetic inside, sometimes causing the stick-type cosmetic to break. To address this issue, a known configuration for absorbing the impact acting on the stick-type cosmetic is one that uses a resin spring or a coil spring, as described in Patent Document 1 below. This resin spring or coil spring is provided inside the container and serves to absorb the impact in the axial direction of the stick-type cosmetic when an impact acts on the container. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2017-209494 Summary of the Invention [Problem to be solved by the invention]

[0004] However, containers equipped with these resin springs or coil springs require space to accommodate the springs, which increases the length of the container in the axial direction, but there is also a demand for more compact containers.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a container for dispensing a stick-shaped cosmetic material that can protect the stick-shaped cosmetic material from impact and that can be made compact. [Means for solving the problem]

[0006] The stick-type cosmetic dispensing container according to the present invention comprises a cylindrical container body, a stick-type cosmetic cartridge arranged at the front end, which is one axial end of the container body, and containing a stick-type cosmetic so that the stick-type cosmetic can be dispensed and retracted, and a joint member arranged at the rear end, which is the other axial end of the container body, wherein the stick-type cosmetic cartridge comprises a cylindrical sleeve within which the stick-type cosmetic slides and which is rotatable relative to the container body, a cylindrical female screw member which engages with the sleeve so as to be rotatable relative to the sleeve and has a female screw protrusion on its inner circumferential surface, and a movable body which is rotatable synchronously with the sleeve and has a male screw protrusion on its outer circumferential surface which screws into the female screw protrusion of the female screw member, and which grips the stick-type cosmetic; and the joint member is arranged such that the rear end of the tubular bore of the cylindrical portion located at the front end is closed by a first plate-like portion. the tip of the cylindrical portion located on the rear end side is closed by a plate-shaped second plate-shaped portion, and the rear-end joint member is synchronously rotatable with the rear end of the container body and axially engageable with the rear end of the container body; and an axial connecting portion connecting the axial center of the first plate-shaped portion and the axial center of the second plate-shaped portion, and a slit having a starting end and an ending end, which passes through in the axial direction and provides elasticity, is provided around the connecting portion of at least one of the first plate-shaped portion and the second plate-shaped portion, thereby forming a leaf spring portion, and a gap is provided between the inner surface of the container body and the outer surface of the joint member distal to the leaf spring portion, which allows axial movement of the tip-side joint member by the leaf spring portion.

[0007] With this type of stick-type cosmetic dispensing container, when the sleeve and container body that constitute the stick-type cosmetic cartridge are rotated relative to each other, the sleeve and the movable body that constitutes the stick-type cosmetic cartridge and grips the stick-type cosmetic are rotatable synchronously, while the container body and the rear-end joint member of the joint member are rotatable synchronously, and the front-end joint member of the joint member and the female screw member that constitutes the stick-type cosmetic cartridge are rotatable synchronously, and the female screw protrusion of the female screw member is threadedly engaged with the male screw protrusion of the movable body, so that the movable body moves in the axial direction and the stick-type cosmetic is dispensed / retracted for use / storage. Here, the axial center of the first plate-shaped portion at the rear end of the front-end joint member and the axial center of the second plate-shaped portion at the front end of the rear-end joint member are connected by an axial connecting portion, and a slit having a starting end and an ending end that penetrates the axial direction and provides elasticity is provided around at least one of the connecting portions of the first plate-shaped portion and the second plate-shaped portion, thereby forming a leaf spring portion. For this reason, when an impact is applied, for example by dropping the stick-shaped cosmetic material dispensing container, in an attempt to move the stick-shaped cosmetic material forward, the moving body engages with the tip-side joint member in the axial direction via the female screw member and sleeve, and a gap is provided between the inner surface of the container body and the outer surface of the joint member further tip than the leaf spring portion, which allows the tip-side joint member to move axially by the leaf spring portion.As a result, the leaf spring portion expands and contracts in the axial direction to absorb the impact and protect the stick-shaped cosmetic material from the impact, and the flat leaf spring portion allows for compactness.

[0008] Here, a first slit and a second slit having a starting end and an ending end, which penetrate in the axial direction and provide elasticity, are provided around the connection between the first plate-shaped portion and the second plate-shaped portion of the joint member, thereby forming a first leaf spring portion and a second leaf spring portion, respectively, and a gap is provided between the inner surface of the container body and the outer surface of the joint member further towards the tip than the first leaf spring portion, which allows the first leaf spring portion and the second leaf spring portion to move the tip-side joint member.The first leaf spring portion and the second leaf spring portion can more effectively protect the stick-shaped cosmetic material without being longer in the axial direction than a single leaf spring portion.

[0009] Furthermore, when the container body and the front joint member are engaged so as to be synchronously rotatable in the same manner as the rear joint member, twisting in the rotational direction of the front joint member and the rear joint member is reliably prevented.

[0010] Furthermore, the stick-shaped cosmetic dispensing container according to the present invention comprises a front tube having an opening through which the stick-shaped cosmetic can be withdrawn and protrude; a core chuck that grips the stick-shaped cosmetic, is rotatable in synchronous with the front tube, and is movable in the axial direction; a male screw portion that is cylindrical and has a male screw protrusion on its outer peripheral surface and a plate-like portion that closes the tip of the male screw portion; a movable body that has an axial connecting portion that connects the axis of the rear end surface of the core chuck with the axis of the plate-like portion of the male screw portion; a cylindrical female screw member that has a female screw protrusion on its inner peripheral surface that screws into the male screw protrusion of the male screw portion of the movable body; and a container body that is rotatable relative to the front tube and has the female screw member accommodated inside so as to be rotatable in synchronous with the front tube; and the container is characterized in that a slit that has a starting end and an ending end and penetrates in the axial direction around the connecting portion of the plate-like portion to provide elasticity constitutes a leaf spring portion.

[0011] With this type of stick-shaped cosmetic dispensing container, when the front tube and the container body are rotated relative to each other, the front tube and the core chuck that forms the moving body and grips the stick-shaped cosmetic can rotate synchronously, while the container body and the female screw member can also rotate synchronously, and the female screw protrusion of the female screw member is screwed into the male screw protrusion of the male screw portion that forms the moving body and is connected to the core chuck via a connecting portion, so that the moving body moves in the axial direction and the stick-shaped cosmetic is advanced and retracted from the opening of the front tube. Here, the axis of the rear end surface of the core chuck and the axis of the plate-shaped portion at the tip of the male screw portion are connected by a connecting portion, and a slit having a starting end and an ending end that penetrates the plate-shaped portion in the axial direction and provides elasticity is provided around the connecting portion of the plate-shaped portion, thereby forming a leaf spring portion. Therefore, when the stick-shaped cosmetic material dispensing container is dropped, for example, and an impact is applied to move the stick-shaped cosmetic material forward, the leaf spring portion extends as the core chuck moves forward, expanding and contracting in the axial direction to absorb the impact, protecting the stick-shaped cosmetic material from the impact, and the flat leaf spring portion allows for compactness. [Effects of the Invention]

[0012] As described above, the present invention can provide a container for dispensing a stick-shaped cosmetic material that can protect the stick-shaped cosmetic material from impact and that can be made compact. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a vertical cross-sectional view showing a stick-type cosmetic material dispensing container according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a vertical cross-sectional view taken along a direction perpendicular to FIG. 1. [Figure 3] FIG. 3 is a perspective view showing a container body in FIGS. 1 and 2. [Figure 4] FIG. 2 is a vertical cross-sectional view showing the container body in FIG. [Figure 5] FIG. 3 is a vertical cross-sectional view showing the container body in FIG. 2. [Figure 6] FIG. 2 is a side view showing the stick-shaped cosmetic cartridge in FIG. [Figure 7] FIG. 3 is a side view showing the stick-shaped cosmetic cartridge in FIG. 2. [Figure 8] FIG. 7 is a cross-sectional view taken along line VIII-VIII in FIG. [Figure 9] FIG. 9 is a perspective view showing the sleeve in FIGS. 1, 2, and 6 to 8. [Figure 10] FIG. 9 is a vertical cross-sectional view showing the sleeve in FIGS. 2 and 8. [Figure 11] FIG. 9 is a perspective view showing the female screw member in FIGS. 1, 2, and 6 to 8. [Figure 12] FIG. 7 is a side view showing the female screw member in FIGS. 1 and 6. [Figure 13] FIG. 8 is a side view showing the female screw member in FIGS. 2 and 7. [Figure 14] FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG. [Figure 15] FIG. 9 is a perspective view showing a moving body in FIGS. 1, 2 and 8. [Figure 16] FIG. 3 is a perspective view showing a joint member in FIGS. 1 and 2. [Figure 17] FIG. 3 is a side view showing the joint member in FIG. 2. [Figure 18]FIG. 18 is a left side view of the joint member shown in FIG. [Figure 19] FIG. 18 is a right side view of the joint member shown in FIG. [Figure 20] FIG. 18 is a cross-sectional view taken along the line XX-XX in FIG. [Figure 21] FIG. 18 is a cross-sectional perspective view taken along line XXI-XXI in FIG. 17. [Figure 22] FIG. 22 is a front view showing the leaf spring part in FIGS. 16 to 21. [Figure 23] FIG. 10 is a front view showing another leaf spring portion. [Figure 24] FIG. 10 is a front view showing yet another leaf spring portion. [Figure 25] FIG. 10 is a front view showing yet another leaf spring portion. [Figure 26] FIG. 4 is a vertical cross-sectional view showing a stick-shaped cosmetic material dispensing container according to a second embodiment of the present invention. [Figure 27] FIG. 27 is a side view showing the container body in FIG. 26. [Figure 28] FIG. 28 is a cross-sectional view taken along line XXVIII-XXVIII in FIG. 27. [Figure 29] FIG. 27 is a side view showing the front tube in FIG. 26. [Figure 30] FIG. 30 is a cross-sectional view taken along the line XXX-XXX in FIG. 29. [Figure 31] FIG. 27 is a perspective view showing the female screw member in FIG. 26. [Figure 32] FIG. 32 is a vertical cross-sectional view of the female screw member shown in FIG. [Figure 33] FIG. 27 is a perspective view showing a moving body in FIG. 26. [Figure 34] FIG. 34 is a side view of the moving body shown in FIG. 33. [Figure 35] FIG. 35 is a left side view of the moving body shown in FIG. [Figure 36] FIG. 36 is a cross-sectional view taken along line XXXVI-XXXVI in FIG. 34. DETAILED DESCRIPTION OF THE INVENTION

[0014] Preferred embodiments of a stick-type cosmetic material dispensing container according to the present invention will now be described with reference to Figures 1 to 36. Figures 1 to 25 show a first embodiment of the present invention, and Figures 26 to 36 show a second embodiment of the present invention, with the same elements in each figure being given the same reference numerals and redundant explanations being omitted.

[0015] First, a first embodiment will be described, as shown in Figures 1 to 25. Figures 1 and 2 are longitudinal cross-sectional views showing a stick-type cosmetic material dispensing container according to the first embodiment of the present invention, Figures 3 to 5 are views showing the container body, Figures 6 to 8 are views showing a stick-type cosmetic material cartridge, Figures 9 and 10 are views showing a sleeve, Figures 11 to 14 are views showing a female screw member, Figure 15 is a perspective view showing a movable body, Figures 16 to 21 are views showing a joint member, and Figure 22 is a front view showing a leaf spring portion.

[0016] 1 and 2, the stick-type cosmetic dispensing container 100 of this embodiment comprises a container body 1, a stick-type cosmetic cartridge 2 that is located at the front end (left side in the figure), which is one axial end of the container body 1, and that stores a stick-type cosmetic M so that it can be dispensed and retracted, a joint member 3 that is located at the rear end (right side in the figure), which is the other axial end of the container body 1, and an applicator 4 that is located at the rear end side of the joint member 3. In this example, the stick-type cosmetic M is an eyebrow cosmetic, and the applicator 4 is a brush for shaping the eyebrows to which the cosmetic has been applied, but the stick-type cosmetic M can be another stick-type cosmetic, such as an eyeliner, and the applicator 4 can be another applicator, such as a comb.

[0017] As shown in Figures 3 to 5, the container body 1 is configured as a stepped cylinder with a reduced diameter at its front end. The outer peripheral surface of the front end has a plurality of dowels 1a arranged at intervals along the circumferential direction for detachably attaching a front cap 9 (see Figures 1 and 2). The inner peripheral surface of the rear end has a pair of opposing engagement grooves 1b for rotationally engaging with a rear-end joint member 3b (described in detail below) of the joint member 3 and for axially engaging with the rear-end joint member 3b. The engagement grooves 1b have a generally keyhole shape when viewed radially, and a circular portion 1c, which is generally circular when viewed radially and serves as the engagement portion, is a groove that opens rearward via a narrow passage 1d. A pair of opposing engagement grooves 1e, which have a rectangular shape when viewed radially and which serve as rotationally engaging with a front-end joint member 3a (described in detail below) of the joint member 3, are formed on the inner peripheral surface of the container body 1 distal to the engagement grooves 1b. The tip end portion of this engagement groove 1e is formed as a gap S1 (see FIG. 1) that allows the tip end joint member 3a to move (forward / backward) in the axial direction.

[0018] 6 to 8, the stick-shaped cosmetic cartridge 2 comprises a sleeve 5 within which the stick-shaped cosmetic M slides and which is rotatable relative to the container body 1, a female screw member 6 disposed within the sleeve 5, rotatable relative to the sleeve 5, and having a female screw protrusion 6a formed on its inner peripheral surface, and a movable body 8 disposed within the sleeve 5, having a male screw protrusion 8b formed on its outer peripheral surface that threadably engages with the female screw protrusion 6a of the female screw member 6, and which is rotatable synchronously with the sleeve 5, and which extends in the axial direction and grips the stick-shaped cosmetic M. In this example, a flat stick-shaped cosmetic M is used as the stick-shaped cosmetic M.

[0019] As shown in Figures 9 and 10, the sleeve 5 has a large diameter portion 5a that protrudes further forward than the tip surface of the container body 1 and can be gripped with the fingers, and a small diameter portion 5b that is connected to the rear end of the large diameter portion 5a via a stepped surface and is housed within the container body 1 and the tip-side joint member 3a of the joint member 3 (see Figures 1 and 2). The rear end of the large diameter portion 5a is cylindrical, and its diameter tapers toward the tip to form a substantially elongated cylindrical shape (substantially elliptical cylindrical shape) so as to fit the flat-shaped stick-shaped cosmetic material M. Here, the tip surface of the sleeve 5 is an inclined surface that is inclined relative to the axis.

[0020] As shown in Figure 10, the front half of the cylindrical hole of the sleeve 5 is a storage area that houses the stick-shaped cosmetic material M and a core chuck 8a (described in detail later) that grips the stick-shaped cosmetic material M on the movable body 8, and the rear half is a storage area that has a slightly larger diameter than the front half and houses the female screw member 6 (see also Figures 1 and 2).

[0021] The cylindrical hole in the front half of the sleeve 5 is a flat stick-shaped cosmetic hole 5c that extends rearward from an opening 5h at the tip and allows the sliding of a stick-shaped cosmetic M. At opposing positions around this stick-shaped cosmetic hole 5c (here, positions sandwiching the long axis of the flat shape), a pair of opposing grip piece grooves 5d are provided, running from a position a predetermined distance rearward from the opening 5h to the housing area for the female screw member 6 of the sleeve 5, for accommodating and allowing sliding of a grip piece 8d (see Figure 15) of the movable body 8, which will be described later. These stick-shaped cosmetic holes 5c and the grip piece grooves 5d around the stick-shaped cosmetic hole 5c form an advance / retreat hole 5e along which the stick-shaped cosmetic M and grip piece 8d slide.

[0022] 9 and 10, a recess 5f is provided in an annular shape on the outer peripheral surface of the rear end of the sleeve 5 for axially engaging with the tip-side joint member 3a of the joint member 3 (see also FIG. 1). Furthermore, an engaging recess 5g is provided in an annular shape on the inner peripheral surface of the sleeve 5 on the tip side of the recess 5f for axially engaging with the female screw member 6 (see also FIG. 1).

[0023] As shown in Figures 11 to 14, the female screw member 6 is configured in an approximately cylindrical shape, and has a pair of opposing female screw protrusions 6a on the inner surface of the tip for threading onto male screw protrusions 8b (described in detail later) of the movable body 8.

[0024] A flange 6b is provided on the outer peripheral surface of the rear end of the female screw member 6. A plurality of axially extending ribs 6c are arranged in parallel along the circumferential direction on the outer peripheral surface behind the flange 6b to engage the distal joint member 3a of the joint member 3 in the rotational direction. A cantilever spring-like elastic portion 6d is formed at 180° symmetrical positions about the axis on the distal side of the flange 6b of the female screw member 6. The elastic portion 6d is formed by a U-shaped split groove 6g drilled in the peripheral wall, communicating the inside and outside. Due to the flexibility of the synthetic resin or other molding material, it functions as a leaf spring and is elastically deformable in the radial direction of the female screw member 6. A dowel 6e is provided on the surface of the elastic portion 6d, providing rotational resistance with the sleeve 5. An annular engaging protrusion 6f is provided on the outer peripheral surface of the female screw member 6 distal to the elastic portion 6d, for axially engaging with the engaging recess 5g of the sleeve 5.

[0025] As shown in Figure 15, the movable body 8 is provided with a core chuck 8a for supporting the rear end of the stick-shaped cosmetic material M, and a male screw protrusion (male screw) 8b extending spirally in the axial direction behind the core chuck 8a.

[0026] The core chuck 8a comprises a base 8c whose outer shape roughly matches the outer shape of the stick-shaped cosmetic M and against which the rear end face of the stick-shaped cosmetic M abuts, and a gripping piece 8d that is provided at an opposing position on the outer circumferential surface of the base 8c so as to protrude toward the tip side and that clamps and grips the rear end face of the stick-shaped cosmetic M abutted against the base 8c.

[0027] As shown in Figure 8, this movable body 8 is inserted into the female screw member 6 from the rear end side, and the male screw protrusion 8b of the movable body 8 is screwed into the female screw protrusion 6a of the female screw member 6, and the rear end surface of the base 8c of the core chuck 8a of the movable body 8 hits the tip surface of the female screw member 6, and the movable body 8 is screwed in to the rear limit of its retraction.

[0028] This movable body 8 and female screw member 6 are inserted from the rear end of the sleeve 5, and the core chuck 8a of the movable body 8 enters the advance / retreat hole 5e of the sleeve 5, so that the movable body 8 can rotate synchronously around the axis relative to the sleeve 5 and move in the axial direction.

[0029] Furthermore, the female screw member 6 is mounted so as to be immovable in the axial direction but rotatable about the axis relative to the sleeve 5 by having its engaging protrusion 6f engage with the engaging recess 5g of the sleeve 5 in the axial direction. Then, the stick-shaped cosmetic material M is inserted through the opening 5h of the sleeve 5 and abuts against the base 8c of the core chuck 8a of the movable body 8, and is gripped by having its rear end fitted between the gripping pieces 8d, 8d, thereby obtaining the stick-shaped cosmetic material cartridge 2 shown in Figures 6 to 8.

[0030] As shown in Figures 16 to 21, the joint member 3 includes a tip-side joint member 3a on the tip side, a rear-end joint member 3b on the rear side, and a connecting portion 3c that connects the tip-side joint member 3a and the rear-end joint member 3b on the rear side.

[0031] The distal joint member 3a has a cylindrical portion 3d located at the distal end, with a first plate-like portion 3e closing the rear end of the cylindrical bore. A cantilevered spring-like elastic portion 3f is formed in front of the first plate-like portion 3e of the cylindrical portion 3d at 180° symmetrical positions about the axis. The elastic portion 3f is formed by a U-shaped split groove 3g drilled in the peripheral wall, communicating the interior and exterior. Due to the flexibility of the synthetic resin or other molding material, it functions as a leaf spring and is elastically deformable in the radial direction of the distal joint member 3a. A pair of opposing engaging protrusions 3h are formed on the surface of the elastic portion 3f, which engage with the engaging groove 1e of the container body 1 in the rotational direction. Furthermore, ribs 3i extending in the axial direction and engaging with the ribs 6c of the female screw member 6 in the rotational direction are formed on the back surface of the elastic portion 3f at four equally spaced positions around the circumference. In addition, on the inner surface of the tip side of the elastic portion 3f of the tip side joint member 3a, four equally spaced dowels 3j are provided which detachably engage with the annular recess 5f of the sleeve 5 in the axial direction (the engagement is released when pulled strongly).

[0032] The rear-end joint member 3b has a cylindrical portion 3k located on the rear end side, and the tip of the cylindrical hole is closed by a plate-shaped second plate-shaped portion 3m. A dowel 3n is formed on the cylindrical portion 3k at a 180° symmetrical position behind the second plate-shaped portion 3m, which engages with the circular portion 1c of the engagement groove 1b of the container body 1 in the rotational direction and in the axial direction. A flange 3o for abutting against the container body 1 is formed on the outer peripheral surface of the cylindrical portion 3k behind the dowel 3n, and a plurality of dowels 3p for detachably attaching a rear cap 10 (see FIGS. 1 and 2) are arranged at intervals along the circumferential direction on the outer peripheral surface behind the flange 3o.

[0033] The connecting portion 3c connects the axial center of the first plate-shaped portion 3e and the axial center of the second plate-shaped portion 3m. Around the connecting portion 3c of the first plate-shaped portion 3e, a first slit 3q having a starting end and an ending end is provided, penetrating in the axial direction and providing elasticity, as shown in Figures 18, 21, and 22. The first slit 3q provided in the first plate-shaped portion 3e constitutes a first leaf spring portion 3r. As shown in Figure 22 in particular, the first slit 3q is composed of two C-shaped slits that are concentric and point in opposite directions.

[0034] As shown in Fig. 19, a second slit 3s having a start end and an end, penetrating in the axial direction, and for providing elasticity is provided around the connecting portion 3c of the second plate-shaped portion 3m. The second slit 3s provided in the second plate-shaped portion 3m constitutes a second leaf spring portion 3t. The second slit 3s is rotated 180° from the first slit 3q when viewed in the same axial direction.

[0035] 1 and 2, this joint member 3 is inserted from the front joint member 3a into the opening at the rear end of the container body 1, and when the flange portion 3o of the rear joint member 3b is abutted against the rear end surface of the container body 1, the dowel 3n of the rear joint member 3b enters the circular portion 1c of the engagement groove 1b of the container body 1 through the narrow passage 1d, thereby engaging with the container body 1 in the rotational direction and also in the axial direction, and is attached so as to be rotatable synchronously.

[0036] As the elastic portion 3f of the tip-side joint member 3a bends inward due to its elasticity, the engaging protrusion 3h on the surface of the elastic portion 3f enters the engaging groove 1e of the container body 1, and the elastic portion 3f elastically returns to its original state, causing the engaging protrusion 3h to engage with the engaging groove 1e in the rotational direction, enabling it to rotate synchronously with the container body 1.

[0037] At this time, a gap S1 is formed between the tip surface of the engagement groove 1e, which is the inner surface of the container body 1, and the tip surface of the engagement protrusion 3h, which is the outer surface of the tip side joint member 3a, allowing the tip side joint member 3a to move in the axial direction.

[0038] In addition, a gap S2 is formed between the axial inner surface of the step portion 1f at the tip of the container body 1 and the tip surface of the tip joint member 3a of the joint member 3, which allows axial movement of the tip joint member 3a, similar to the gap S1.

[0039] An applicator holder 11 is inserted into and fixed to the cylindrical hole of the cylindrical portion 3k of the rear-end joint member 3b, and an applicator 4 is attached to the applicator holder 11. In this state, an annular recess 10a formed on the inner peripheral surface of the rear cap 10 axially engages with a dowel 3p of the rear-end joint member 3b, whereby the rear cap 10 is detachably attached to cover the applicator 4.

[0040] In this state, referring to Figures 1 and 2, the stick-type cosmetic cartridge 2 shown in Figures 6 to 8 is inserted from the rear end side into the opening at the tip of the container body 1 and inserted into the tip-side joint member 3a, and the step surface between the large diameter portion 5a and the small diameter portion 5b of the sleeve 5 abuts against the tip surface of the container body 1, and the annular recess 5f of the sleeve 5 engages axially with the dowel 3j of the tip-side joint member 3a, so that the sleeve 5 is detachably attached to the tip-side joint member 3a and is rotatable relative to it.

[0041] In this state, the ribs 6c of the female screw member 6 engage with the ribs 3i (see Figure 20) on the back surface of the tip side joint member 3a at four equally spaced positions in the circumferential direction, including the elastic portion 3f, of the tip side joint member 3a, thereby enabling the female screw member 6 to rotate synchronously with the tip side joint member 3a. Alternatively, the female screw member 6 and the tip side joint member 3a may be made synchronously rotatable by providing multiple convex portions that protrude rearward along the circumferential direction on the rear end surface of the female screw member 6, and providing multiple concave portions along the circumferential direction on the tip side joint member 3a that engage with these convex portions in the rotational direction.

[0042] The annular recess 9a formed on the inner surface of the front cap 9 engages with the dowel 1a of the container body 1 in the axial direction, thereby allowing the front cap 9 to be removably attached so as to cover the tip of the stick-shaped cosmetic cartridge 2.

[0043] According to this type of stick-type cosmetic material dispensing container 100, when the sleeve 5 and the container body 1 are rotated relative to each other by holding the large diameter portion 5a of the sleeve 5, the sleeve 5 and the moving body 8 can rotate synchronously, while the container body 1 and the rear end joint member 3b of the joint member 3 can rotate synchronously, and the front end joint member 3a of the joint member 3 and the female screw member 6 can rotate synchronously, and since the female screw protrusion 6a of the female screw member 6 is screwed into the male screw protrusion 8b of the moving body 8, the moving body 8 moves in the axial direction and the stick-type cosmetic material M is dispensed / retracted for use / storage.

[0044] In this embodiment in particular, the axis of the first plate-shaped portion 3e at the rear end of the tip-side joint member 3a and the axis of the second plate-shaped portion 3m at the tip of the rear-end joint member 3b are connected by an axial connecting portion 3c, and a first slit 3q and a second slit 3s having a starting end and an ending end, which penetrate in the axial direction and provide elasticity are provided around the connecting portion 3c of the first plate-shaped portion 3e and the second plate-shaped portion 3m, respectively, to form a first leaf spring portion 3r and a second leaf spring portion 3t. For this reason, when an impact is applied, for example by dropping the stick-type cosmetic material dispensing container 100 to advance the stick-type cosmetic material M, the movable body 8 is axially engaged with the tip-side joint member 3a via the female screw member 6 and the sleeve 5, and gaps S1, S2 that allow the first leaf spring portion 3r and the second leaf spring portion 3t to move the tip-side joint member 3a are provided between the inner surface of the container body 1 and the outer surface of the joint member 3 distal to the first leaf spring portion 3r. As a result, the first leaf spring portion 3r and the second leaf spring portion 3t expand and contract in the axial direction to absorb the impact and protect the stick-type cosmetic material M from the impact, and the flat leaf spring portions 3r, 3t allow for a more compact design. In particular, the use of two leaf spring portions 3r, 3t provides better protection for the stick-type cosmetic material M.

[0045] Furthermore, according to this embodiment, the container body 1 and the front joint member 3a are engaged with each other so as to be able to rotate synchronously, similar to the rear joint member 3b, so that twisting in the rotational direction between the front joint member 3a and the rear joint member 3b is reliably prevented.

[0046] 1 and 2 , in the normal state in which the stick-type cosmetic cartridge 2 is attached to the container body 1, even if an attempt is made to pull the joint member 3 axially rearward from the container body 1 by holding the rear-end joint member 3b and detaching it, the inner surface of the ridge 3i on the back surface of the elastic portion 3f of the front-end joint member 3a faces the outer peripheral surface of the rear end of the female screw member 6, preventing the elastic portion 3f from bending inward, and therefore preventing the axial engagement between the engaging protrusion 3h on the surface of the elastic portion 3f of the front-end joint member 3a and the engaging groove 1e in the container body 1 from being released, and the joint member 3 cannot be pulled axially rearward to be detached from the container body 1. Here, if the large-diameter portion 5a of the sleeve 5 of the stick-type cosmetic cartridge 2 is held and the stick-type cosmetic cartridge 2 is pulled forward from the container body 1 with strong force, the axial engagement between the annular recess 5f of the sleeve 5 and the dowel 3j of the front-end joint member 3a of the joint member 3 can be released, and the stick-type cosmetic cartridge 2 can be removed from the container body 1. In this state, if an attempt is made to grasp the rear-end joint member 3b and pull the joint member 3 axially rearward to remove it from the container body 1, the elastic portion 3f of the front-end joint member 3a will bend inward, releasing the axial engagement between the engaging protrusion 3h on the surface of the elastic portion 3f and the engaging groove 1e of the container body 1, and the axial engagement of the dowel 3n of the rear-end joint member 3b with the circular portion 1c of the container body 1 can be released through the narrow passage 1d, allowing the joint member 3 to be pulled axially rearward and removed from the container body 1. In other words, the stick-type cosmetic material dispensing container 100 can be disassembled into the container body 1, the stick-type cosmetic material cartridge 2, and the joint member 3.

[0047] In this embodiment, it is particularly preferable to provide a first slit 3q and a second slit 3s, which have a starting end and an ending end, that penetrate in the axial direction and provide elasticity, around the connecting portion 3c of both the first plate-shaped portion 3e and the second plate-shaped portion 3m of the joint member 3, thereby forming the first plate spring portion 3r and the second plate spring portion 3t, respectively. However, it is also possible to provide a slit 3q or a slit 3s, which have a starting end and an ending end, that penetrates in the axial direction and provides elasticity, around the connecting portion 3c of either the first plate-shaped portion 3e or the second plate-shaped portion 3m, thereby forming the plate spring portion 3r or the plate spring portion 3t, thereby protecting the stick-shaped cosmetic M from impact and making it more compact.

[0048] 23 to 25 are front views showing other flat spring parts.

[0049] The leaf spring portion 12 shown in FIG. 23 is provided with a spiral slit 15 having a start end and an end end and penetrating in the axial direction around the connecting portion (axial center).

[0050] The leaf spring portion 13 shown in FIG. 24 is provided with a substantially C-shaped slit 16 having a starting end and an ending end and penetrating in the axial direction around the connecting portion (axial center).

[0051] The leaf spring portion 14 shown in FIG. 25 has a slit 17 in the shape of a snake pattern (a rectangular spiral pattern) that has a starting end and an ending end and penetrates in the axial direction around the connecting portion (axial center).

[0052] It goes without saying that the leaf spring portions 12 to 14 shown in FIGS. 23 to 25 have substantially the same functions and effects as the leaf spring portions 3r and 3t described with reference to FIGS.

[0053] Fig. 26 is a longitudinal cross-sectional view showing a stick-type cosmetic material dispensing container according to a second embodiment of the present invention, Figs. 27 and 28 are views showing the container body, Figs. 29 and 30 are views showing the front tube, Figs. 31 and 32 are views showing the female screw member, and Figs. 33 to 36 are views showing the movable body.

[0054] 26, the exterior shape of the stick-type cosmetic material dispensing container 200 comprises a container body 21 at the rear and a front tube 22 at the front. The container body 21 and the front tube 22 house a movable body 23 that can grip a stick-type cosmetic material M and move in the axial direction, and also house a female screw member 24 within the container body 21 for moving the movable body 23 in the axial direction.

[0055] As shown in Figures 27 and 28, the container body 21 is cylindrical, with the tip portion 21a having a smaller diameter than the main body portion 21b located behind it. A plurality of dowels 21c for detachably attaching a cap 25 (see Figure 26) are spaced apart along the circumferential direction on the outer peripheral surface of the tip portion 21a. A ring-shaped protrusion 21d for attaching the leading tube 22 is formed on the inner peripheral surface of the boundary between the tip portion 21a and the main body portion 21b of the container body 21. A fitting portion 21e is formed on the inner peripheral surface of the rear end of the container body 21 to fit the female screw member 24 so that it cannot move in the axial direction but can rotate synchronously.

[0056] As shown in Figures 29 and 30, the front tube 22 is configured in an approximately cylindrical shape, with the front front half being a large diameter portion 22b with a slightly larger diameter via a step surface 22a in the middle of the axial direction, and the rear half being an insertion portion 22c that is inserted into the container body 21 and the female screw member 24.

[0057] The large-diameter portion 22b of the front tube 22 is tapered, and the bore of the front tube 22 is a stick-shaped cosmetic hole 22e with a circular cross section that extends rearward from an opening 22d at the tip and allows the sliding of a stick-shaped cosmetic material M. At four equally spaced positions around this stick-shaped cosmetic material hole 22e, gripping piece grooves 22f are provided, running from a position a predetermined distance rearward from the opening 22d to the rear end of the front tube 22, for accommodating and allowing the sliding of gripping pieces 23e (see Figures 33 to 35) of the movable body 23, which will be described later. These stick-shaped cosmetic material holes 22e and the gripping piece grooves 22f around the stick-shaped cosmetic material hole 22e form an advance / retreat hole 22g along which the stick-shaped cosmetic material M and gripping pieces 23e slide.

[0058] An O-ring groove 22h for attaching an O-ring 26 is formed at a position near the step surface 22a on the outer surface of the insertion portion 22c of the front tube 22, and a circular recess 22i is formed behind the O-ring groove 22h to engage with the circular protrusion 21d of the container body 21 in the axial direction.

[0059] 31 and 32, the female screw member 24 is configured in a substantially cylindrical shape with a bottom, with the inner circumferential surface of the rear half reduced in diameter, and a female screw protrusion 24a is provided in this reduced-diameter portion in a spiral shape extending in the axial direction to screw into a male screw protrusion 23h (described in detail later) of the movable body 23. The bottomed portion 24b of the female screw member 24 serves as a lid that closes the rear end of the cylindrical hole of the container body 21, and the rear end portion connected to the front side of the bottomed portion 24b serves as a fitting portion 24c that fits into the fitting portion 21e of the container body 21.

[0060] As shown in Figures 33 to 36, the movable body 23 includes a core chuck 23a for supporting the rear end of the stick-shaped cosmetic material M, a male screw portion 23b located axially rearward of the core chuck 23a and extending in the axial direction, and a connecting portion 23c connecting the core chuck 23a and the male screw portion 23b.

[0061] The core chuck 23a comprises a base 23d whose outer shape roughly matches the outer shape of the stick-shaped cosmetic M and against which the rear end face of the stick-shaped cosmetic M abuts, and gripping pieces 23e which are provided at four equally spaced positions on the outer peripheral surface of the base 23d so as to protrude toward the tip side and which clamp and hold the rear end face of the stick-shaped cosmetic M abutted against the base 23d.

[0062] Male screw portion 23b has a substantially cylindrical tube portion 23f (see FIG. 26), and a plate-like portion 23g is provided at the tip of the tube hole of tube portion 23f so as to close it. At the rear end of tube portion 23f, multiple male screw protrusions 23h that screw into female screw protrusions 24a are protruded discontinuously on the arc surface (here, a pair are positioned opposite each other, and another pair of opposing protrusions are positioned offset by 90 degrees in the rotational direction and in the front-to-rear direction, for a total of four).

[0063] The connecting portion 23c connects the axis of the rear end surface of the base portion 23d of the core chuck 23a to the axis of the plate-shaped portion 23g of the male screw portion 23b. As shown in Figures 33 and 36, a slit 23i having a starting end and an ending end, penetrating in the axial direction, and providing elasticity is provided around the connecting portion 23c of the plate-shaped portion 23g. The provision of this slit 23i in the plate-shaped portion 23g constitutes a plate spring portion 23j. The slit 23i has a small or large approximately C-shaped slit on the inside or outside of the approximately C-shaped slit so that it is shifted in the rotational direction.

[0064] Referring to Figure 26, the movable body 23 configured in this manner is inserted into the female screw member 24 from the rear end side, the male screw protrusion 23h of the movable body 23 screws into the female screw protrusion 24a of the female screw member 24, and the rear end surface of the male screw portion 23b of the movable body 23 is screwed in to the backward limit where it hits the bottom portion 24b of the female screw member 24.

[0065] The female screw member 24 to which the movable body 23 is attached is inserted into the container body 21 from the tip side, and the mating portion 24c of the female screw member 24 fits into the mating portion 21e of the container body 21, so that the rear end of the container body 21 is covered by the bottomed portion 24b of the female screw member 24, and the female screw member 24 is attached to the container body 21 so that it cannot move in the axial direction but can rotate synchronously.

[0066] The leading tube 22 is inserted into the container body 21 from the rear end side by its insertion portion 22c, and the leading tube 22 is pushed in so that the gripping piece 23e of the core chuck 23a of the moving body 23 enters the gripping piece groove 22f of the leading tube 22, causing the step surface 22a of the leading tube 22 to abut against the tip surface of the container body 21, and the recess 22i of the leading tube 22 to engage with the protrusion 21d of the container body 21 in the axial direction, thereby attaching the leading tube 22 to the container body 21 so that it cannot move in the axial direction but can rotate relatively.

[0067] An annular recess 25a formed on the inner peripheral surface of the cap 25 engages with the dowel 21c of the container body 21 in the axial direction, whereby the cap 25 is removably attached to cover the tip of the leading tube 22.

[0068] According to this type of stick-shaped cosmetic material dispensing container 200, when the leading tube 22 and the container body 21 are rotated relative to each other by holding the large diameter portion 22b of the leading tube 22, the leading tube 22 and the core chuck 23a (moving body 23) can rotate synchronously, while the container body 21 and the female screw member 24 can also rotate synchronously, and since the female screw protrusion 24a of the female screw member 24 and the male screw protrusion 23h of the male screw portion 23b are screwed together, the moving body 23 moves in the axial direction, and the stick-shaped cosmetic material M appears and disappears from the opening 22d of the leading tube 22, making it possible for it to be used / stored.

[0069] Here, in particular, in this embodiment, the axis of the rear end surface of the base 23d of the core chuck 23a and the axis of the plate-shaped portion 23g at the tip of the male screw portion 23b are connected by the connecting portion 23c, and a slit 23i having a starting end and an ending end, which penetrates in the axial direction and provides elasticity is provided around the connecting portion 23c of the plate-shaped portion 23g, thereby forming a plate spring portion 23j. Therefore, when the stick-shaped cosmetic material dispensing container 200 is dropped, for example, and an impact is applied to move the stick-shaped cosmetic material M forward, the plate spring portion 23j extends as the core chuck 23a moves forward, expanding and contracting in the axial direction to absorb the impact and protect the stick-shaped cosmetic material M from the impact, and the flat leaf spring portion 23j allows for compactness.

[0070] While the present invention has been specifically described above based on the embodiments, the present invention is not limited to the above embodiments. For example, the leaf spring portion described in Figures 22 to 25 may be used in the second embodiment, and the leaf spring portion used in the second embodiment may be used in the first embodiment. Furthermore, the leaf spring portion is not limited to these, and any other suitable leaf spring may be used as long as it has a slit with a starting end and an ending end, penetrating the axial direction, around the connecting portion of the plate-shaped portion to provide elasticity. Alternatively, a round bar-shaped material used for a coil spring may be shaped like a spiral spring.

[0071] Furthermore, the stick-shaped cosmetic material M is not limited to a flat or round rod shape, but may have a teardrop-shaped cross section, a square rod shape, etc. The container may also have a square shape, etc., and the shape is not limited.

[0072] Furthermore, the female screw projections and the male screw projections may be continuous or discontinuous. [Explanation of symbols]

[0073] 1, 21...container body, 2...stick-shaped cosmetic cartridge, 3...joint member, 3a...front-end joint member, 3b...rear-end joint member, 3c, 23c...connection portion, 3e...first plate-shaped portion, 3m...second plate-shaped portion, 3q...first slit, 3r...first leaf spring portion, 3s...second slit, 3t...second leaf spring portion, 5...sleeve, 6, 24...female screw member, 6a, 24a...female screw protrusion, 8b, 23h...male screw protrusion, 8, 23...moving body, 12, 13, 14...plate spring portion, 15, 16, 17...slit, 22...tip tube, 22d...opening, 23a...core chuck, 23b...male screw portion, 23g...plate-shaped portion, 23i...slit, 23j...plate spring portion, 100, 200...stick-shaped cosmetic material dispensing container, M...stick-shaped cosmetic material, S1, S2...gap.

Claims

1. A cylindrical container body; a stick-shaped cosmetic cartridge disposed at a tip end of the container body in the axial direction and accommodating a stick-shaped cosmetic in a manner that allows the cosmetic to be fed out and retracted; a joint member disposed on the rear end side, which is the other end in the axial direction of the container body; The stick-shaped cosmetic cartridge comprises: a cylindrical sleeve within which the stick-shaped cosmetic material slides and which is rotatable relative to the container body; a cylindrical female screw member that is rotatably engaged with the sleeve and has a female screw projection on its inner circumferential surface; a movable body that has a male screw protrusion on its outer circumferential surface that screws into the female screw protrusion of the female screw member, that is rotatable in synchronization with the sleeve, and that grips the stick-shaped cosmetic material, The joint member is a tip-side joint member, the rear end of which is closed by a plate-shaped first plate-shaped portion and which is synchronously rotatable with the female screw member and which detachably engages with the sleeve in the axial direction; a rear-end joint member, the front end of which is closed by a plate-shaped second plate-shaped portion and which is synchronously rotatable with and axially engages with the rear end of the container body; an axial connecting portion that connects an axial center of the first plate-shaped portion and an axial center of the second plate-shaped portion; A slit having a starting end and an ending end is provided around the connection portion of at least one of the first plate-shaped portion and the second plate-shaped portion, penetrating in the axial direction and providing elasticity, thereby forming a leaf spring portion; A stick-shaped cosmetic dispensing container characterized in that a gap is provided between the inner surface of the container body and the outer surface of the joint member at the tip side of the leaf spring portion, allowing the tip-side joint member to move in the axial direction by the leaf spring portion.

2. a first slit and a second slit having a starting end and an ending end, penetrating in the axial direction, and for providing elasticity are provided around the connection portion of the first plate-shaped portion and the second plate-shaped portion of the joint member, thereby forming a first leaf spring portion and a second leaf spring portion, respectively; 2. The stick-shaped cosmetic dispensing container according to claim 1, wherein a gap is provided between the inner surface of the container body and the outer surface of the joint member at a position distal to the first leaf spring portion, the gap allowing movement of the distal joint member by the first leaf spring portion and the second leaf spring portion.

3. 3. The container for dispensing a stick-shaped cosmetic material according to claim 1, wherein the container body and the front joint member are engaged to be synchronously rotatable in the same manner as the rear joint member.

4. a front tube having an opening through which the stick-shaped cosmetic material can be inserted and removed; a core chuck that holds the stick-shaped cosmetic material and is rotatable in synchronism with the front tube and movable in an axial direction; a cylindrically configured male screw portion that has a male screw protrusion on its outer circumferential surface and a plate-like portion that closes the front end of the male screw portion; and a movable body that has an axial connecting portion that connects the axis of the rear end surface of the core chuck and the axis of the plate-like portion of the male screw portion. a cylindrical female screw member having a female screw protrusion on an inner circumferential surface thereof that screws together with the male screw protrusion of the male screw portion of the movable body; a container body that is rotatable relative to the front tube and that houses the female screw member therein so as to be synchronously rotatable; A stick-shaped cosmetic dispensing container characterized in that a slit having a starting end and an ending end, penetrating in the axial direction, and providing elasticity is provided around the connection portion of the plate-shaped portion, thereby forming a plate spring portion.

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