COSMETIC INGREDIENT DISPENSING CONTAINER

Abstract

The invention relates to a cosmetic material dispensing container comprising a cylindrical tube (1) which holds a cosmetic material, a front cylinder (2) for removably holding the tube (1), a container body (3) which is detachably coupled with the front cylinder (2), a cylindrical female screw element (8) located inside the container body (3) which is rotationally fixed with the container body (3), a push bar (5) located inside the front cylinder (2) for pushing the cosmetic material in an axial direction towards an outside of the tube (1) when the push bar (5) is turned to screw into the female screw element (8), and a rotation stop element (6) located inside the front cylinder (2) for rotationally fixing the push bar (5) relative to the front cylinder (2) in the circumferential direction.The tube (1) can be replaced when the front cylinder (2) is detached from the container body (3).

Description

Title of the invention: COSMETIC MATTER DISPENSING CONTAINER

[0001] CROSS-REFERENCE TO RELATED REQUESTS

[0002] This application claims priority over Japanese patent application No. 2020-004526, filed on January 15, 2020, and Japanese patent application No. 2020-185843, filed on November 6, 2020.

[0003] BACKGROUND

[0004] In the related art, various cosmetic material dispensing containers are known. Japanese patent application No. 2010-178828 discloses a cartridge-type cosmetic material dispensing container. A container body of the cartridge-type cosmetic material dispensing container includes an outer cylinder, a body cylinder provided inside the outer cylinder, and an inner tool provided in an opening portion of the body cylinder. The container body further includes a cartridge body, and the cartridge body includes an inner cylinder. The cylinder body has a bottom cap portion with which a lower end portion of the inner cylinder of the cartridge body makes contact.In addition to the inner cylinder described above, the cartridge body includes a filling chamber filled with a cosmetic material, an operating claw body, an extrusion piece, and a slide. Within the cartridge body, the body cylinder and the inner tool of the container body are replaceable.

[0005] SUMMARY

[0006] In the cartridge-type cosmetic container described above, when a cosmetic product inside the filling chamber is completely used, the cartridge body containing the filling chamber is detached and a new cartridge body is attached. In this way, the container body is not discarded. Therefore, the cartridge-type cosmetic container can be used as an economical and environmentally friendly container.

[0007] However, the cartridge body described above includes the inner cylinder, the filling chamber, the operating claw body, the extrusion piece, and the slide. Therefore, once the cosmetic material inside the filling chamber is no longer present, the filling chamber is discarded along with the cartridge body, which includes a plurality of components. Consequently, the plurality of components is also discarded under such circumstances. It is therefore desirable to further reduce the number of components to be included. discarded after the cosmetic material has been used.

[0008] The purpose of this disclosure is to provide a cosmetic material dispensing container with a reduced number of components to be disposed of.

[0009] According to one aspect of this disclosure, a cosmetic material dispensing container is provided, comprising a cylindrical tube that holds a cosmetic material, an anterior cylinder that houses the tube internally so that it can be attached and detached, and having an opening through which the cosmetic material is exposed, a container body that engages with the anterior cylinder so that it can be attached and detached, a cylindrical female screw element capable of rotating synchronously (e.g., rotationally fixed) with the container body inside the container body, and having a female screw (e.g., a female screw thread) on an internal surface, a push bar having a male screw (e.g., a male screw thread) screwed into the female screw of the female screw element, and pushing the cosmetic material held in the tube towards an exterior of the tube,and a rotation-stopping device that limits the rotation of the thrust bar provided inside the front cylinder in a circumferential direction. The tube is replaceable (exchangeable) in a state where the front cylinder is detached from the container body.

[0010] In the cosmetic product dispensing container, the tube that holds the cosmetic product is provided inside the front cylinder, and the front cylinder engages with the container body so that it can be attached to and detached from it. The cylindrical female screw element is provided inside the container body, and the female screw element forms the female screw into which the male screw of the push bar is screwed. The push bar is provided on the side opposite the opening of the front cylinder as seen from the cosmetic product inside the tube. The push bar is prevented from rotating circumferentially by the rotation stop element and moves forward by a screwing action between the male and female screws described above. In this case, the cosmetic product in the tube is pushed forward by the push bar.Consequently, the cosmetic material can be dispensed from the opening of the front cylinder for application to a surface. The front cylinder can be attached to and detached from the container body. The tube is replaceable even when the front cylinder is detached from the container body. Therefore, the tube alone can be replaced when the front cylinder is detached from the container body, thus reducing the number of components to be discarded. As a result, it is possible to reduce the number of components to be discarded after the cosmetic material has been used.

[0011] The rotation stop member may have a projection on a peripheral surface external. The tube may have a groove through which the projection is gripped from an end portion of the tube on the side of the rotation stop. In this case, the projection of the rotation stop is gripped in the groove of the tube, so that the tube can be rotationally fixed to the rotation stop. Therefore, in a state where the front cylinder is detached from the container body, the tube can be prevented from unintentionally detaching from the rotation stop and the push bar.

[0012] The push bar can move forward when the container body rotates in one direction (for example, a first direction). A ratchet element, provided inside the container body, can be provided to limit the rotation of the container body in a direction (for example, a second direction) opposite to the first direction. The ratchet element can have a second ratchet tooth that engages with a first ratchet tooth formed in the female screw element. In this case, the push bar moves forward when the container body rotates in one direction (for example, the first direction), and the rotation of the container body in the direction (for example, the second direction) opposite to the first direction is limited by the ratchet element.Therefore, rotation of the container body in the opposite direction and unintentional backward movement of the cosmetic material and push bar can be prevented.

[0013] The rotation stop member can engage with the ratchet member to rotate synchronously (for example, be rotationally fixed with it) and can have a cylindrical shape. When the front cylinder is detached from the container body, the rotation stop member can be moved axially to disengage from the ratchet member, so that it can rotate circumferentially relative to the ratchet member. In this case, when the front cylinder is detached from the container body, the rotation stop member moves forward, disengages from the ratchet member, and can rotate relative to the ratchet member. Consequently, the push bar is also rotated by the rotation of the rotation stop member relative to the ratchet member. In this way, the push bar can move backward when the front cylinder is detached from the container body.

[0014] The cosmetic product dispensing container may also include a rear cap located on a side opposite the front cylinder in the container body. The rear cap may close an opening (for example, an open end of the container body) located on the side opposite the front cylinder in the container body. In this case, the airtightness of the cosmetic product dispensing container can be ensured by the rear cap closing the opening in the container body.

[0015] The tube can be engaged with the push bar along an axial direction of the tube. The tube can be replaced by being detached from the push bar. A spring element can be provided to load the push bar so that the push bar moves rearward (for example, toward a rear end of the push bar) when the tube is detached from the push bar. In this case, when the tube engages with the push bar, a forward displacement state of the push bar is maintained by the engagement. Then, when the tube is detached from the push bar, the tube disengages from the push bar. As a result, the push bar automatically moves rearward due to a loading force from the spring element. Therefore, the push bar can automatically return to its initial position when the tube is replaced (exchanged).As a result, a new tube can be easily attached and the ease of use of the cosmetic material dispensing container can be satisfactorily improved.

[0016] According to examples in this disclosure, the number of components to be discarded during cosmetic material replenishment can be reduced. Brief description of the drawings

[0017] [Fig. 1] The [Fig. 1] is a side view illustrating a cosmetic material dispensing container according to an example of the present disclosure.

[0018] [Fig.2] The [Fig.2] is a side view illustrating a state where a cap is detached from the cosmetic material dispensing container of the [Fig.1].

[0019] [Fig.3] The [Fig.3] is a cross-sectional view taken along line AA of the cosmetic material dispensing container of the [Fig.1].

[0020] [Fig.4A] The [Fig.4A] is a side view illustrating an anterior cylinder of the cosmetic material dispensing container of the [Fig.1].

[0021] [Fig.4B] The [Fig.4B] is a cross-sectional view taken along line BB of the anterior cylinder of the [Fig.4A].

[0022] [Fig.5A] The [Fig.5A] is a side view illustrating a tube of the cosmetic material dispensing container of the [Fig.1].

[0023] [Fig.5B] The [Fig.5B] is a cross-sectional view taken along line CC of the tube of the [Fig.5A].

[0024] [Fig.ôA] The [Fig.ôA] is a side view illustrating a push bar of the cosmetic material dispensing container of the [Fig.l].

[0025] [Fig.ôB] The [Fig.ôB] is a cross-sectional view taken along the line DD of the thrust bar of the [Fig.ôA].

[0026] [Fig.7] The [Fig.7] is a front view of the thrust bars of the [Fig.0A].

[0027] [Fig.8A] Fig.8A is a side view illustrating a rotation stop element of the cosmetic material dispensing container of the [Fig.l].

[0028] [Fig.8B] Fig.8B is a cross-sectional view taken along the EE line of the organ rotation stop of the [Fig.8A].

[0029] [Fig.9] The [Fig.9] is a front view of the rotation stop member of the [Fig.8A].

[0030] [Fig.1OA] The [Fig.1OA] is a side view illustrating a ratcheting organ of the cosmetic material dispensing container of the [Fig.1].

[0031] [Fig.1OB] The [Fig.1OB] is a cross-sectional view taken along the FF line of the ratchet member of the [Fig.1OA].

[0032] [Fig. 11 A] The [Fig. 11 A] is a front view of the ratcheting member of the [Fig. 10A].

[0033] [Fig. 1 IB] The [Fig. 1 IB] is a rear view of the ratcheting member of the [Fig. 10A].

[0034] [Fig. 12] Fig. 12 is a cross-sectional view illustrating a state where a cap is detached from the cosmetic material dispensing container of [Fig.3].

[0035] [Fig. 13] The [Fig. 13] is a cross-sectional view illustrating a state in which the anterior cylinder is detached from the cosmetic material dispensing container of the [Fig. 12].

[0036] [Fig. 14] The [Fig. 14] is a cross-sectional view illustrating a state where the tube is detached from the cosmetic material dispensing container of the [Fig. 13].

[0037] [Fig. 15] The [Fig. 15] is a cross-sectional view illustrating the front cylinder fitted with a new tube, in the cosmetic material dispensing container illustrated in [Fig. 1].

[0038] [Fig. 16] The [Fig. 16] is a cross-sectional view illustrating a state where the anterior cylinder of the [Fig. 15] is attached to the cosmetic material dispensing container of the [Fig. 14]

[0039] [Fig. 17] The [Fig. 17] is a side view illustrating a tube, a cosmetic material, a push bar and a rotation stop member of a cosmetic material dispensing container according to another example.

[0040] [Fig. 18] The [Fig. 18] is an enlarged side view of the rotation stop member and the container body illustrated in the [Fig. 17].

[0041] [Fig. 19] The [Fig. 19] is a side view illustrating a tube and a rotation stop member of a cosmetic material dispensing container according to another example.

[0042] [Fig.20A] [Fig.20A] is a side view illustrating the tube of the container of dis contribution of cosmetic material of the [Fig. 19].

[0043] [Fig.20B] [Fig.20B] is a side view illustrating the tube seen in one direction different from that of [Fig.20A].

[0044] [Fig. 21] Fig. 21 is a cross-sectional view illustrating an internal structure of a cosmetic material dispensing container according to another example.

[0045] [Fig. 22] Fig. 22 is a cross-sectional view illustrating an internal structure of a cosmetic material dispensing container, according to yet another example.

[0046] [Fig.23A] Fig.23A is a side view illustrating a rotation stop element of the cosmetic material dispensing container of the [Fig.22].

[0047] [Fig. 23B] Fig. 23B is a cross-sectional view of the rotation stop member illustrated in the [Fig.23A], taken along the GG line.

[0048] [Fig.24] Fig.24 is a side view illustrating a tube and a rotation stop member of a cosmetic material dispensing container according to yet another example.

[0049] [Fig.25A] The [Fig.25A] is a side view illustrating the tube of the [Fig.24].

[0050] [Fig. 25B] [Fig. 25B] is a side view illustrating the tube when seen in a direction different from that of [Fig.25A].

[0051] [Fig.26A] Fig.26A is a side view illustrating the rotation stop member of the [Fig.24].

[0052] [Fig. 26B] Fig. 26B is a cross-sectional view of the rotation stop member illustrated on [Fig.26A], taken along line HH.

[0053] [Fig.27] Fig.27 is a cross-sectional view illustrating an internal structure of a cosmetic material dispensing container according to yet another example.

[0054] [Fig.28] Fig.28 is a side view illustrating a cosmetic material dispensing container according to yet another example. DETAILED DESCRIPTION

[0055] Examples of cosmetic material dispensing containers will be described below with reference to the drawings. In the following description, with reference to the drawings, the same reference numbers are assigned to the same components or similar components having the same function, and overlapping descriptions are omitted.

[0056] Figure 1 is a side view illustrating an example of a cosmetic material dispensing container. Figure 2 is a side view of the cosmetic material dispensing container of Figure 1, illustrating a state where a cap is detached from the cosmetic material dispensing container. Figure 3 is a cross-sectional view of the cosmetic material dispensing container illustrated in Figure 1, taken along line AA. As illustrated in Figures 1 to 3, for example, the cosmetic material dispensing container 100 is a pencil that dispenses (pushes out) a cosmetic material M contained within a tube 1 by a user action.

[0057] For example, the cosmetic material M may be a lip pencil, lipstick, lip gloss, eyebrow pencil, eyeliner, cosmetic stick, or concealer. The cosmetic material M may be a very soft, bar-shaped material (for example, semi-solid, soft-solid, soft, gelatin- and foam-like materials, or paste-like products containing these materials). Furthermore, the cosmetic material M has a thin, bar-shaped material with an outer diameter 1.5 mm or less, a general bar-shaped material with an outside diameter of 1.5 mm to 3.0 mm, or a thick bar-shaped material with an outside diameter of 4.0 mm or more.

[0058] The cosmetic material dispensing container 100 includes a front cylinder 2 which contains a tube 1 for holding the cosmetic material M, and a cylindrical container body 3 connected to a rear end portion of the front cylinder 2 and engaging with the front cylinder 2, and a rear cap 4 which is a working cylinder connected to a rear end portion of the container body 3 and engaging with the container body 3 to allow it to rotate relative to the front cylinder 3. The cosmetic material dispensing container 100 further includes a cap 10 attached to the front cylinder 2 and can be used as follows. The cap 10 is detached and, when the container body 3 is rotated relative to the rear cap 4 in a first direction, the cosmetic material M is pushed out of the front cylinder 2.

[0059] The cap 10 includes a cylindrical outer cap with a bottom (for example, a cylindrical outer cap with a closed end) 11 and a stepped cylindrical inner cap 12 held by a bottom portion 11b of the outer cap 11. An inner surface of the outer cap 11 has an annular recess portion 11e and an annular projection portion 1d. The outer cap 11 is a portion into which the front cylinder 2 is inserted.

[0060] The inner cap 12 has an annular projection portion 12b on an outer peripheral surface, and the inner cap 12 is fixed to the outer cap 11 such that the annular projection portion 12b, which overlaps the annular projection portion 1d, is inserted into the annular recess portion 11. The inner cap 12 is designed to provide an airtight seal for the cosmetic material M located inside the front cylinder 2 to which the cap 10 is attached. The inner cap 12 has a cylindrical insertion portion 12d into which the front cylinder 2 is inserted, and the inner diameter of the insertion portion 12d is approximately the same as the outer diameter of a tip portion of the front cylinder 2.

[0061] In this disclosure, the term "axis" refers to a longitudinal axis of a substantially cylindrical body, such as a centerline of the cosmetic material dispensing container extending along a longitudinal direction of the cosmetic material dispensing container. The term "axial direction" refers to the longitudinal direction of the cosmetic material dispensing container, such as a direction along the axis. The term "forward" indicates a direction from the container body 3 toward the front cylinder 2 in the axial direction, and the term "backward" indicates a direction from the body of containing 3 towards the posterior cap 4 in the axial direction. Accordingly, directional terms such as "forward," "front," "backward," "rear," "behind," and the like can be understood with reference to the "forward" and "backward" directions. The term "radial direction" can indicate a direction orthogonal to the axis, and the term "circumferential direction" can indicate a direction along a ring formed around the axis. In this disclosure, a distribution direction of the cosmetic material M will be defined as forward (forward displacement direction), and a direction opposite to it will be defined as backward (rear displacement direction).

[0062] In the example of the cosmetic material dispensing container 100, only the tube 1 is replaced in order to refill the cosmetic material dispensing container 100 with new cosmetic material. A push bar 5 that pushes the cosmetic material M out is inserted into the tube 1. The push bar 5 is arranged so as to extend in the axial direction inside a cylindrical rotation stop member 6 located inside the front cylinder 2, a cylindrical ratchet member 7 located inside the container body 3, and a cylindrical female screw member 8 located inside the rear cap 4.

[0063] The push bar 5 is forced backward by a spring element 9 disposed inside the ratchet element 7. The ratchet element 7 and the female screw element 8 form a ratchet mechanism R, which is described later. In some examples, the spring element 9 may be a helical compression spring. The ratchet mechanism R allows the container body 3 to rotate relative to the rear plug 4 only in the first direction (for example, clockwise), and limits the relative rotation of the container body 3 in a second direction opposite to the first (for example, counterclockwise).

[0064] Figure 4A is a side view illustrating the front cylinder 2. Figure 4B is a cross-sectional view of the front cylinder 2 shown in Figure 4B, taken along line BB. As illustrated in Figures 4A and 4B, the front cylinder 2 has an opening 2b through which the cosmetic material M held in the tube 1 can be exposed. A receiving region 2c for holding the cosmetic material M, the tube 1, and the rotation stop 6 is provided inside the front cylinder 2, and the tube 1 is disposed on one front side of the push bar 5 in the receiving region 2c.

[0065] In some examples, the receiving region 2c of the front cylinder 2 includes a front receiving region 2d, a central receiving region 2f, and a rear receiving region 2g. The cosmetic material M protruding from the tube 1 is received in the front receiving region 2d, the tube 1 is received in the central receiving region 2f, and The rotation stop 6 is housed in the rear housing region 2g. The inner diameter of the front housing region 2d is smaller than the inner diameter of the central housing region 2f. A stepped portion 2h, projecting inward in the radial direction from the central housing region 2f to the front housing region 2d, is formed between the front housing region 2d and the central housing region 2f. An end portion of the tube 1, in the axial direction, contacts the stepped portion 2h.

[0066] The inner diameter of the central receiving region 2f is smaller than the inner diameter of the rear receiving region 2g. A front side of the rear receiving region 2g has a conical surface 2j whose diameter decreases towards the central receiving region 2f. The conical surface 2j is a part where an end portion of the rotation-stopping member 6 enters in the axial direction, and the forward movement of the rotation-stopping member 6 is further limited by the conical surface 2j.

[0067] An inclined surface 2k, inclined to be conical towards the front, is formed on a front side of an outer periphery of the front cylinder 2. A plurality of projections 2m, a conical surface 2p, and a plurality of edges 2q for attaching the cap 10 are formed on a rear side of the inclined surface 2k. The plurality of projections 2m, the conical surface 2p, and the plurality of edges 2q are aligned in that order from front to back. The plurality of projections 2m and the plurality of edges 2q are aligned along the circumferential direction of the front cylinder 2.

[0068] The front cylinder 2 has a flange portion 2r on a rear side of the edge 2q. The cap 10 is in contact with a front surface of the flange portion 2r, and the container body 3 is in contact with a rear surface of the flange portion 2r. The front cylinder 2 has a male screw 2s and an annular recess portion 2t behind the flange portion 2r. The male screw 2s is provided on a front side of the annular recess portion 2t. The male screw 2s is a portion into which the container body 3 is screwed, so as to attach the front cylinder 2 to the container body 3 by screwing the front cylinder 2 into the container body 3. The annular recess portion 2t is a portion into which the O-ring 21 (see [Fig. 3]) can be inserted. The front cylinder 2 is attached to the container body 3 in a state where an O-ring 21 is inserted into the annular recessed part 2t.

[0069] Figure 5A is a side view illustrating tube 1, which contains the cosmetic substance M. Figure 5B is a cross-sectional view of tube 1 shown in Figure 5A, taken along line CC. As illustrated in Figures 5A and 5B, tube 1 has a cylindrical shape. Tube 1 can contain the cosmetic substance M. Polypropylene (PP) can be used, for example, as the material for tube 1.

[0070] The cosmetic material M fills the inside of the tube 1 in advance, and the cosmetic filling material M is pushed out by the push bar 5 to the rear end of the cosmetic material M. In this way, the cosmetic material M, which protrudes from the front cylinder 2, is applied. For example, an inner surface 1b of the tube 1 can form a smooth surface. As a result, the cosmetic material M can be gently pushed out of the tube 1 by the push bar 5.

[0071] Fig. A is a side view illustrating the push bar 5. Fig. B is a cross-sectional view taken along line DD of the push bar 5 of Fig. A. Fig. 7 is a front view of the push bar 5 (for example, when the push bar 5 is viewed from the front side). As illustrated in Figures 6A, 6B, and 7, the push bar 5 has a bar-shaped portion 5f that pushes out the cosmetic material M contained in the tube 1, and a maximum diameter of the outer diameter of the bar-shaped portion 5f is approximately the same as the inner diameter of the tube 1. An edge 5b extending in the axial direction is formed on an outer peripheral surface of the bar-shaped portion 5f.The push bar 5 has an enlarged diameter portion 5c located on a rear side (e.g., the rear end) 5g of the bar-shaped portion 5f and a male screw (e.g., a male screw thread) 5d formed on an outer periphery of the enlarged diameter portion 5c.

[0072] A form of the bar-shaped portion 5f of the thrust bar 5, viewed from the front side (e.g., the front end) 5h, is a cross shape extending vertically and horizontally. For example, the enlarged diameter portion 5c has a bottom-cylindrical shape (e.g., a closed-ended cylindrical shape). Viewed from the front side, the male screws 5d are formed respectively on a first side and a second side opposite the first side (upper and lower sides in [Fig. 7]) of the enlarged diameter portion 5c in the radial direction. The thrust bar 5 includes a plurality of ridges 5b, and the plurality of ridges 5b are arranged to be aligned along the circumferential direction of the thrust bar 5.

[0073] The bar-shaped part 5f engages with the rotation stop member 6 in the circumferential direction. In this way, the push bar 5 can move in the axial direction relative to the rotation stop member 6, and is rotationally fixed relative to the rotation stop member 6, so that the push bar 5 cannot move in the circumferential direction relative to the rotation stop member 6. The enlarged diameter portion 5c is a portion whose diameter is larger than that of the bar-shaped portion 5f, and forms a rear end of the push bar 5. A front surface of the enlarged diameter portion 5c corresponds to a portion that supports the rear end of the spring member 9. The male screw 5d is screwed into the female screw member 8 and forms a first part of a screwing portion (or screw coupling) T formed by the push bar 5 and the female screw member 8.

[0074] Fig. 8A is a side view illustrating the rotation stop 6. Fig. 8B is a cross-sectional view of the rotation stop 6 shown in Fig. 8A, taken along line EE. Fig. 9 is a front view of the rotation stop 6 (for example, when the rotation stop 6 is viewed from the front). The rotation stop 6 has a stepped cylindrical shape. As illustrated in Figures 3, 8A, 8B and 9, an inner surface of the rotation stop member 6 has a push bar insertion region 6f into which the push bar 5 is inserted, an edge 6g located on a rear side of the push bar insertion region 6f, and a rearward open portion of an enlarged diameter hole 6h behind the edge 6g.

[0075] In some examples, the push bar insertion region 6f has a cylindrical hole shape extending rearward from a front end of the rotation stop member 6. The rotation stop member 6 has a plurality of ridges 6g. Each of the ridges 6g projects inward in the radial direction of the rotation stop member 6 and extends in the axial direction. The plurality of ridges 6g are arranged so as to be aligned in the circumferential direction of the rotation stop member 6.

[0076] In some examples, the number of ridges 6g is four, and the four ridges 6g are arranged at equal intervals along the circumferential direction. The bar-shaped portion 5f of the push bar 5 engages with the edge 6g in the circumferential direction, and the bar-shaped portion 5f engages with the edge 6g, which stops the rotation of the push bar 5 relative to the rotation-stopping member 6. The enlarged diameter hole portion 6h is a portion into which the other end (front end) of the spring member 9 enters.

[0077] The enlarged diameter hole portion 6h is a part that supports a front end of the spring member 9. The spring member 9 is arranged so as to extend in the axial direction between the enlarged diameter portion 5c of the push bar 5 and the enlarged diameter hole portion 6h of the rotation stop member 6. The spring member 9 forces the push bar 5 backwards (towards the rear end 5g of the push bar 5), and forces the rotation stop member 6 forwards.

[0078] An outer peripheral surface of the rotation stop member 6 includes a conical surface 6b located on the front side, a projecting portion 6c located behind the conical surface 6b, and a flanged portion 6d located behind the projecting portion 6c. The conical surface 6b is a portion inserted into the front cylinder 2 from the rear.

[0079] The projecting portion 6c extends axially over the outer peripheral surface of the rotation-stopping member 6, and a plurality of projecting portions 6c are arranged along the circumferential direction of the rotation-stopping member 6. In some examples, the number of projecting portions 6c is four, and the four The projecting parts 6c are arranged at equal intervals in the circumferential direction. For example, a position of each of the projecting parts 6c in the circumferential direction can be the same as a position of each of the edges 6g in the circumferential direction. The projecting part 6c is a part that contacts the rear end of the front cylinder 2 and engages with the ratchet member 7 in the circumferential direction when the front cylinder 2 is attached.

[0080] The flange portion 6d is a part that engages with the ratchet member 7 in the axial direction. The front end of the flange portion 6d comes into contact with the ratchet member 7 so that the rotation stop member 6 engages with the ratchet member 7 in the axial direction. In this way, the rotation stop member 6 engages with the ratchet member 7 in the axial direction to prevent the rotation stop member 6 from falling off the ratchet member 7.

[0081] Fig. 1OA is a side view illustrating the ratchet member 7. Fig. 1OB is a cross-sectional view of the ratchet member 7 illustrated in Fig. 1OA, taken along line FF. Fig. 1IA is a front view of the ratchet member 7 (for example, when the ratchet member 7 is viewed from the front side). Fig. 1IB is a rear view of the ratchet member 7 (for example, when the ratchet member 7 is viewed from the rear side). As illustrated in Figures 3, 10A, 10B, 11A, and 11B, the ratchet member 7 has a substantially cylindrical shape having a spring portion 7c in which a slot 7b is formed in its central part in the axial direction.

[0082] The ratchet member 7 includes a front cylinder portion 7d with which the rotation stop member 6 engages, the spring portion 7c described above, and a rear cylinder portion 7f with which the female screw member 8 engages. The outer peripheral surface of the front cylinder portion 7d has a plurality of ridges 7g extending in the axial direction, and the plurality of ridges 7g are arranged so as to be aligned in the circumferential direction. The edge 7g is a portion that engages with a knurled wheel 3b formed on the inner surface of the container body 3 in a direction of rotation.

[0083] The front cylinder portion 7d has a plurality of projecting portions 7h extending axially on the inner surface of the ratchet member 7, and the plurality of projecting portions 7h are arranged to be aligned along the circumferential direction. The rotation stop member 6 can move axially relative to the ratchet member 7. When the rotation stop member 6 is located rearward, the projecting portion 7h of the ratchet member 7 engages with the projecting portion 6c of the rotation stop member 6 in the circumferential direction. Then, when the rotation stop member 6 is located forward, the projecting portion 7h of the ratchet member 7 disengages from the projecting portion 6c in the circumferential direction. rentier.

[0084] The spring portion 7c has a substantially cylindrical shape. For example, the outer diameter of the spring portion 7c is larger than the outer diameter of the front cylinder portion 7d. The spring portion 7c is a resin spring-forming portion that can extend and contract in the axial direction. The spring portion 7c has a main body portion 7j and a pair of slots 7b extending along a peripheral surface of the main body portion 7j and through which the interior and exterior of the main body portion 7j communicate with each other.The slot 7b comprises a first extension part 7k extending in the circumferential direction of the ratchet member 7, an inclined part 7m extending obliquely backwards from an end part in the circumferential direction of the first extension part 7k, and a second extension part 7p extending in the circumferential direction of the ratchet member 7 from a rear end of the inclined part 7m.

[0085] The rear cylinder portion 7f has a second ratchet tooth 7q that engages with a first ratchet tooth 8b formed in the female screw member 8. The ratchet mechanism R described above is configured to include the first ratchet tooth 8b and the second ratchet tooth 7q. The second ratchet tooth 7q is formed in the rear end of the ratchet member 7. The second ratchet tooth 7q includes an inclined surface 7r that is inclined with respect to the axial direction, and a wall surface 7s extending towards the rear end of the inclined surface 7r in the axial direction. The inclined surface 7r and the wall surface 7s are aligned with each other in the circumferential direction of the ratchet member 7.

[0086] An inclined surface and a wall surface which are similar to the inclined surface 7r and the wall surface 7s are formed in the first ratchet tooth 8b of the female screw member 8. The inclined surface of the first ratchet tooth 8b faces the inclined surface 7r in the circumferential direction, and the wall surface of the first ratchet tooth 8b faces the wall surface 7s in the circumferential direction. The ratchet member 7 can rotate in the first direction ("one direction") relative to the female screw member 8, so that the inclined surface 7r overlaps the inclined surface of the female screw member 8. However, when a rotational force is applied to the ratchet member 7 in the second direction (opposite to the first direction) relative to the female screw member 8, the wall surface 7s comes into contact with the wall surface of the female screw member 8, which limits the rotation in the opposite second direction.

[0087] In some examples, the female screw 8 may have a stepped cylindrical shape including an annular projection portion 8f having the first ratchet tooth 8b. The annular projection portion 8f is formed in the center of the female screw 8 in the axial direction. A front side portion of the female screw 8, originating from the annular projection portion 8f, is inserted into the ratchet 7, and a rear side portion of the female screw 8, originating from the annular projection portion 8f, is inserted into the rear plug 4.

[0088] A female screw (or a female screw thread) 8c, into which the male screw 5d of the push bar 5 is screwed, and a receiving region 8d located on a front side of the female screw 8c are formed on an inner periphery of the female screw 8. The female screw 8c extends forward in a spiral shape from the rear end portion of the female screw 8, and the male screw 5d formed in the enlarged diameter portion 5c of the push bar 5 is screwed into the female screw 8c. The female screw 8c forms a second part of the screwing portion T described above. In other words, the screwing portion T is configured to include the female screw 8c and the male screw 5d of the push bar 5.

[0089] A portion of the push bar 5 and a portion of the spring member 9 are accommodated in the reception region 8d. As described above, a rear end of the spring member 9 is supported by the push bar 5, and a front end of the spring member 9 is supported by the rotation stop member 6. The spring member 9 extends in the axial direction between the enlarged diameter portion 5c of the push bar 5 and the rotation stop member 6, inside the ratchet member 7 and inside the female screw member 8.

[0090] The rear cap 4 is provided on the rear face of the female screw 8. The rear cap 4 is intended to close an opening (for example, an open end) 3g formed in a rear end of the container body 3. The rear cap 4 includes a cylindrical insertion portion 4b for insertion into the container body 3 and a cylindrical portion 4c located on the rear side of the insertion portion 4b. The diameter of the insertion portion 4b is smaller than the diameter of the cylindrical portion 4c, and the outside diameter of the cylindrical portion 4c is approximately the same as the outside diameter of the container body 3. The rear cap 4 can rotate relative to the container body 3 in the circumferential direction and functions as a working cylinder in which an operation to dispense the cosmetic material M is carried out by rotating the rear cap 4 relative to the container body 3.

[0091] A receiving region 4d, which receives a rear side portion of the female screw 8, is provided on an inner surface of the insertion portion 4b. The outer peripheral surface of the insertion portion 4b has an annular projection portion 4f that engages in an annular recess portion 3c formed on the inner surface of the container body 3 in the axial direction, and an annular recess portion 4g that receives an O-ring 22. The received O-ring 22 in the annular recessed part 4g is provided in close contact with the inner surface of the container body 3 to ensure airtightness inside the container body 3.

[0092] We will describe one operation of the example described above of the cosmetic product dispensing container 100. First, the cap 10 is detached from the front cylinder 2, and the container body 3 is rotated in a first direction relative to the rear cap 4. When the container body 3 is rotated in the first direction relative to the rear cap 4, the rear cap 4 and the female screw 8, which are rotationally fixed together, are rotated synchronously, and the container body 3, the ratchet 7, the front cylinder 2, the tube 1, and the push bar 5, which are rotationally fixed together, are rotated synchronously. In this way, a screwing action on the screw portion T causes the push bar 5 to move forward relative to the female screw 8.As the push bar 5 moves forward, it pushes the cosmetic material M out from inside the tube 1, and the cosmetic material M protruding forward from the front cylinder 2 can be applied to a target application area (e.g., a surface such as a user's skin). In this way, the cosmetic material M can be applied.

[0093] The spring element 9 contracts progressively as the push bar 5 moves forward. Furthermore, the ratchet mechanism R limits the rotation of the ratchet element 7 relative to the female screw element 8 in the second direction opposite to the first direction. Consequently, the rotation of the container body 3 relative to the rear cap 4 in the second direction is limited. As a result, the push bar 5 does not move backward until the cosmetic material M is substantially consumed. Moreover, in a state where the front cylinder 2 is attached to the container body 3, the projecting portion 6c of the rotation-stopping element 6 engages with the projecting portion 7h of the ratchet element 7 in the circumferential direction. Consequently, the rotation-stopping element 6 rotates synchronously (rotationally fixed) with the ratchet element 7.

[0094] When the cosmetic material M is used or consumed, and the cosmetic material M inside the tube 1 is no longer present, as illustrated in Figures 12, 13 and 14, the push bar 5 reaches a limit of forward displacement, and the front end of the push bar 5 protrudes forward from the tube 1. The front cylinder 2 can be detached from the container body 3, to replace the tube 1. Consequently, the tube 1 alone can be removed to be replaced by a new tube.

[0095] Namely, the push bar 5 is inserted into the tube 1, and the tube 1 can be replaced by detaching the tube 1 from the push bar 5. First, when the front cylinder 2 is detached from the container body 3 to replace (exchange) the tube 1, the projecting part 6c of the rotation stop member 6 is moved forward relative to the projecting part 7h of the ratchet member 7 by a compulsion force from the spring member 9. In this state, the rotation stop member 6 disengages from the ratchet member 7 in the circumferential direction, and can rotate relative to the ratchet member 7.

[0096] Before the front cylinder 2 is detached from the container body 3 and the tube 1 is replaced, the push bar 5 engages with the tube 1 due to a frictional force. However, when the tube 1 is detached from the push bar 5, the push bar 5 disengages from the tube 1, and the rotation stop member 6 and the push bar 5 rotate relative to the ratchet member 7. The push bar 5 moves rearward while being rotated by the excitation force of the spring member 9. At this moment, the rear end of the push bar 5 comes into contact with a lower surface 8g of the female screw member 8, and the push bar 5 is positioned in an initial state, as illustrated in [Fig. 3].

[0097] As illustrated in [Fig. 15], a new tube 1 containing the cosmetic material M is inserted into the front cylinder 2, which is detached from the container body 3. At this point, the tube 1 can be inserted into the central receiving region 2f from the rear side of the front cylinder 2, so that the front end of the tube 1 comes into contact with the stepped portion 2h. Then, as illustrated in Figures 15 and 16, the front cylinder 2 into which the tube 1 is inserted can be attached to the container body 3 shown in [Fig. 14]. In this way, the front cylinder 2 containing the new tube 1 is attached to the container body 3, and the tube 1 is completely replaced.

[0098] The operational effects that can be obtained with the example of the cosmetic material dispensing container 100 will be described. In the cosmetic material dispensing container 100, the tube 1, which holds the cosmetic material M, is provided inside the front cylinder 2, and the front cylinder 2 engages with the container body 3 so that it can be attached and detached. The cylindrical female screw element 8 is provided inside the container body 3, and the female screw element 8 has the female screw 8c into which the male screw 5d of the push bar 5 is screwed. The push bar 5 is limited in rotation in the circumferential direction by the rotation stop element 6, and is moved forward by the screwing action between the male screw 5d and the female screw 8c (screwing part T).

[0099] At this point, the cosmetic material M contained in tube 1 is pushed forward by the push bar 5. In this way, the cosmetic material M can be applied by being exposed from the opening 2b of the front cylinder 2. The front cylinder 2 can be attached to and detached from the container body 3. As illustrated in [Fig. 13], tube 1 can be replaced in a state where the front cylinder 2 is detached from the container body 3. Therefore, tube 1 alone can be replaced when the front cylinder 2 is detached from the container body 3, so as to reduce the number of components to be discarded. Consequently, the number of components to be discarded after use of the cosmetic material M can be reduced.

[0100] The push bar 5 moves forward as the container body 3 rotates in the first direction, and the ratchet member 7, which is provided inside the container body 3, limits the rotation of the container body 3 in the second direction (opposite to the first direction). The ratchet member 7 includes the second ratchet tooth 7q, which engages with the first ratchet tooth 8b formed in the female screw member 8. Consequently, the push bar 5 moves forward as the container body 3 rotates in the first direction, and the rotation of the container body 3 in the second direction is limited by the ratchet member 7. Therefore, the rotation of the container body 3 in the second direction can be limited to prevent unintentional backward movement of the cosmetic material M and the push bar 5.

[0101] The rotation stop member 6, of substantially cylindrical shape, engages with the ratchet member 7 in order to be able to rotate synchronously with it. When the front cylinder 2 is detached from the container body 3, the rotation stop 6 moves forward, disengages from the ratchet 7, and can rotate circumferentially relative to the ratchet 7. Consequently, when the front cylinder 2 is detached from the container body 3, the rotation stop 6 moves forward, disengages from the ratchet 7, and can rotate relative to the ratchet 7. Therefore, the push bar 5 is also rotated by the rotation of the rotation stop 6 relative to the ratchet 7. In this way, the push bar 5 can move backward in a state where the front cylinder 2 is detached from the container body 3.

[0102] The cosmetic material dispensing container 100 includes the rear cap 4 located on the side opposite the front cylinder 2 in the container body 3. The rear cap 4 closes the opening 3g located on the side opposite the front cylinder 2 in the container body 3. Therefore, the airtightness of the cosmetic material dispensing container 100 can be ensured by the rear cap 4 which closes the opening 3g of the container body 3.

[0103] Tube 1 can engage with push bar 5 in the axial direction of tube 1, and tube 1 can be replaced by being detached from push bar 5. The cosmetic material dispensing container 100 includes the spring element 9 which forces the push bar 5 to move the push bar 5 rearward when tube 1 is detached from the push bar 5. Therefore, when tube 1 engages with push bar 5, a state in which the push bar 5 is The forward movement is maintained by the engagement. Then, when tube 1 is detached from the push bar 5, tube 1 disengages from the push bar 5. Consequently, the push bar 5 is automatically moved backward by the force exerted by the spring element 9. Therefore, the push bar 5 can automatically return to its initial position when tube 1 is replaced. As a result, a new tube 1 can be easily attached, thus improving the ease of use of the cosmetic product dispensing container 100.

[0104] Although examples of cosmetic material dispensing containers have been described, this disclosure is not limited to the examples described above, and the cosmetic material dispensing container may be modified according to other examples. Namely, the shape, size, number, material, and arrangement of each component of the cosmetic material dispensing container may be modified as appropriate.

[0105] Figure 17 is a side view illustrating a container body 23, a tube 24, a piston 25, a rotation stop 26, a push bar 27, and a cosmetic substance M of a cosmetic substance dispensing container 200 according to one example of modification. Figure 18 is an enlarged side view of the container body 23 and the rotation stop 26, illustrated in Figure 17. As illustrated in Figures 17 and 18, the container body 23 has a substantially cylindrical shape, and the rotation stop 26 protrudes from the front end of the container body 23. According to the examples, a configuration of the container body 23 may be identical or similar to a configuration of the container body 3 described previously (see Figures 2 and 3).

[0106] The tube 24 has a cylindrical cosmetic receiving portion 24b that receives the cosmetic material M, an enlarged diameter portion 24c located behind the cosmetic receiving portion 24b, and a conical surface 24d located between the cosmetic receiving portion 24b and the enlarged diameter portion 24c. The piston 25 is located on the rear side of the cosmetic material M and on the front side of the push bar 27, and is intended to push the cosmetic material M out.

[0107] The rotation-stopping member 26 includes a conical surface 26c exposed from the container body 23 and having a diameter that decreases with distance from the container body 23, and an outer cylindrical peripheral surface 26b located on the front side of the conical surface 26c. The outer peripheral surface 26b has a projection 26d that projects outwards in the radial direction on the outer peripheral surface 26b. The push bar 27 projects forwards from the front end of the rotation-stopping member 26.

[0108] The tube 24 has a groove 24g into which the projection 26d can be inserted from an end portion 24f on the side of the rotation stop member 26, of way to be gripped (for example, locked) in groove 24g. The groove 24g has a first extension portion 24g extending forward obliquely (for example, at an angle to the longitudinal axis) from the end portion 24f, and a second extension portion 24j extending circumferentially in opposite directions from the front end of the first extension portion 24. For example, the first extension portion 24f and the second extension portion 24j are substantially T-shaped. In the tube 24, the projection 26d of the rotation stop member 26 is inserted into the first extension portion 24h from the end portion 24f, and the tube 24 can be rotated relative to the rotation stop member 26, so that the projection 26d is inserted into the second extension portion 24j. In this way, the tube 24 engages with the rotation stop member 26 in the axial direction.

[0109] As described above, in the cosmetic material dispensing container 200, according to the modification example, the rotation stop member 26 includes the projection 26d on the outer peripheral surface 26b. The tube 24 has the groove 24g into which the projection 26d is inserted from the end portion 24f of the tube 24 on the side of the rotation stop member 26. Consequently, the projection 26d of the rotation stop member 26 is gripped by the groove 24g of the tube 24. In this way, the tube 24 can engage with the rotation stop member 26.

[0110] Consequently, in a state where the front cylinder 2 is detached from the container body 23, the tube 24 can be prevented from unintentionally detaching from the rotation stop 26 and the push bar 27. Furthermore, the cosmetic material dispensing container 200, according to the modification example, includes the piston 25 interposed between the push bar 27 and the cosmetic material M. Therefore, the push bar 27 does not directly push the cosmetic material M out. As a result, the push bar 27 can be protected, for example, against staining by the cosmetic material M, by minimizing contact with the cosmetic material M.

[0111] The container body 23, the tube 24, the rotation stop member 26 and the push bar 27, according to the modification example, can replace the container body 3, the tube 1, the rotation stop member 6 and the push bar 5, respectively, of the cosmetic material dispensing container example 100 described previously with reference to Figures 1 to 16. In addition, the piston 25 can be incorporated into the cosmetic material dispensing container example 100.

[0112] In addition to the example cosmetic material dispensing container 200 described, the cosmetic material dispensing container according to this disclosure may be further modified. A cosmetic material dispensing container according to yet another example will be described.

[0113] Figure 19 is a side view illustrating a container body 213, a tube 214, and a rotation stop 216 of a cosmetic substance dispensing container 210 according to another example. Figure 20A is a side view of the tube 214. Figure 20B is a side view of the tube 214 when viewed from a different direction than Figure 20A. Certain configurations of the container body 213, the tube 214, and the rotation stop 216 are the same as certain configurations of the container body 23, the tube 24, and the rotation stop 26 described above. It is therefore possible to omit the overlapping descriptions of the contents described above.

[0114] The tube 214 has an enlarged diameter portion 214c located on its rear side. The rotation-stopping member 216 includes a conical surface 216c exposed from the container body 213 and having a diameter that decreases with distance from the container body 213, and an outer peripheral surface 216b located on the front side of the conical surface 216c. The outer peripheral surface 216b has a projection 216d that projects outwards in the radial direction from the outer peripheral surface 216b.

[0115] The tube 214 has an end surface 214f ​​facing the rotation stop member 216, and a locking portion 214g formed on the end surface 214f ​​by which the rotation stop member 216 is gripped. The end surface 214f ​​of the tube 214 is inclined with respect to a plane orthogonal to the axial direction. The end surface 214f ​​can be oriented to form an angle of inclination from 14° to 40°, for example, with respect to a plane orthogonal to the axial direction. However, the angle of inclination of the end surface 214f ​​is not limited to the value described above and can be modified as appropriate. A shape of the end surface 214f ​​viewed in the axial direction is an annular shape. In the illustrated example, the end surface 214f ​​is inclined obliquely, in that the end surface extends backwards in a counterclockwise direction along the annular shape.

[0116] According to examples, the locking portion 214g is a hollowed-out portion into which the projection 216d of the rotation stop member 216 enters. According to examples, the tube 214 has two locking portions 214g aligned with each other along the circumferential direction of the tube 214. The locking portion 214g has a first extension portion 214h extending forward obliquely from the end surface 214f, and a second extension portion 214j extending on both sides in the circumferential direction into the front end of the first extension portion 214h. In the tube 214, the projection 216d of the rotation-stopping member 216 is inserted into the first extension portion 214h from the end surface 214f, and rotates relative to the rotation-stopping member 216. The projection 216d is gripped by the second extension part 214j. In this way, the tube 214 engages with the rotation stop member 216 in the axial direction.

[0117] As described above, in the example of the cosmetic product dispensing container 210, the projection 216d of the rotation stop member 216 is gripped by the locking portion 214g of the tube 214. In this way, the tube 214 can engage with the rotation stop member 216. Furthermore, the end surface 214f ​​of the tube 214 is inclined with respect to the plane orthogonal to the axial direction. The end surface 214f ​​is inclined towards the locking portion 214g, which has a grooved shape.

[0118] Therefore, when the projection 216d engages with the locking portion 214g, the projection 216d can smoothly engage with the locking portion 214g along the inclined end surface 214f, bringing the projection 216d into contact with the end surface 214f. That is, the projection 216d can make contact with any point on the end surface 214f, so as to smoothly guide the projection 216d towards the second extension portion 214j of the tube 214. As a result, the rotation stop member 216 can smoothly engage with the tube 214.

[0119] Fig. 21 is a cross-sectional view illustrating an internal structure of a cosmetic material dispensing container 300 according to another example. As with the cosmetic material dispensing container 100, the cosmetic material dispensing container 200 or the cosmetic material dispensing container 210 described above, the cosmetic material dispensing container 300 includes the front cylinder 2, the container body 3, the push bar 5 and the rotation stop member 26 (or rotation stop member 216), the ratchet member 7, the female screw member 8 and the spring member 9.

[0120] The example of the cosmetic material dispensing container 300 further includes a second spring element 310. In some examples, the second spring element 310 may be made of stainless steel (SUS). The second spring element 310 is interposed between the female screw element 8 and the rotation stop element 26, and is designed to press the rotation stop element 26 against the female screw element 8. The second spring element 310 presses the rotation stop element 26 forward.

[0121] In some examples, the diameter of the second spring member 310 is larger than the diameter of the spring member 9. The second spring member 310 is arranged so as to surround the spring member 9 between the rotation stop member 26 (or the rotation stop member 216) and the female screw member 8. As described above, the example of a cosmetic material dispensing container 300 includes the second spring member 310 which forces the rotation stop member 26. In this way, the rotation stop member 26 can be forced against the side of the tube 24 (front side), and the projection 26d (or the projection 216d) can be smoothly guided towards the second extension part 24j (or the second extension part 214j).

[0122] Figure 22 is a cross-sectional view illustrating the internal structure of a cosmetic material dispensing container 400 according to yet another example. Figure 23A is a side view illustrating a rotation stop 406 of the cosmetic material dispensing container 400. Figure 23B is a cross-sectional view taken along line GG in Figure 23A. As illustrated in Figures 22, 23A, and 23B, the cosmetic material dispensing container 400 differs from the cosmetic material dispensing container 300 in that the cosmetic material dispensing container 400 does not include the second spring element 310, and the cosmetic material dispensing container 400 includes a rotation stop 406 having a different shape than the rotation stop 26.

[0123] The rotation stop member 406 includes a spring portion 406b facing the female screw member 8. For example, configurations of the rotation stop member 406 other than the spring portion 406b may be identical or similar to configurations of the rotation stop member 26 described above (or of the rotation stop member 216). The spring portion 406b is located in the rear end of the rotation stop member 406 and is in contact with the front end of the female screw member 8.

[0124] For example, the spring portion 406b can be a resin spring portion that can extend and contract in the axial direction. According to the examples, the spring portion 406b can be formed by a main body portion 406c extending in a spiral and a slot 406d communicating with the inside and outside of the main body portion 406c and extending in a spiral shape. In this way, the spring portion 406b extends and contracts along the axial direction, with the main body portion 406c and the slot 406d having a spiral shape.

[0125] As described above, the cosmetic material dispensing container 400 is equipped with a rotation stop 406 having a spring portion 406b. In this way, the rotation stop 406 is pressed against the side (front side) of the tube 24 (or the tube 214) by the spring portion 406b. Consequently, the projection 26d (or the projection 216d) can be smoothly guided towards the second extension portion 24j (or the second extension portion 214j) of the tube 24. Furthermore, the cosmetic material dispensing container 400 does not require a component corresponding to the second spring portion 310. As a result, the number of components can be reduced.

[0126] A cosmetic substance dispensing container 500 according to yet another example will be described. [Fig. 24] is a side view illustrating a container body 503, a tube 504 and a rotation stop member 506 of the cosmetic substance dispensing container example 500. [Fig. 25A] is a side view illustrating the tube 504. [Fig. 25B] is a side view where tube 504 is viewed from a different direction than in [Fig. 25A]. [Fig. 26A] is a side view illustrating the rotation stop 506. [Fig. 26B] is a cross-sectional view taken along line HH of the rotation stop 506.

[0127] The tube 504 has an enlarged diameter portion 504c. Furthermore, the tube 504 has an end surface 504f facing the side of the rotation stop member 506, and a locking portion 504g formed on the end surface 504f by which the rotation stop member 506 is gripped. Similar to the end surface 214f ​​of the example described previously with reference to Figures 19, 20A, and 20B, the end surface 504f of the tube 504 is inclined with respect to a plane orthogonal to the axial direction.

[0128] According to examples, the locking portion 504g includes a first locking portion 504g1 and a second locking portion 504g2 having a different shape from that of the first locking portion 504g1. According to examples, the tube 504 has two first locking portions 504g1 and two second locking portions 504g2. According to examples, the first locking portion 504g1 and the second locking portion 504g2 are arranged alternately along the circumferential direction of the tube 504. Each of the first locking portions 504g1 and the second locking portions 504g2 forms a recessed portion into which the projection 506d of the rotation-stopping member 506 can be inserted.

[0129] The first locking portion 504gl comprises a first extension portion 504h extending forward from the end surface 504f and an elongation portion 504j extending into an end portion on a side opposite the end surface 504f in the first extension portion 504h. In some examples, the first extension portion 504h extends parallel to the axial direction and the elongation portion 504j extends in an arc shape from a front end of the first extension portion 504h.

[0130] The second locking portion 504g2 comprises a second extension portion 504k extending forward from the end surface 504f and a curved portion 504m located in an end portion on a side opposite the end surface 504f in the second extension portion 504k. In some examples, the second extension portion 504k extends parallel to the axial direction, and the curved portion 504m is curved in an arc shape from a front end of the second extension portion 504k. The width of the second portion 504k is greater than that of the first extension portion 504h.

[0131] As in the configuration described above, the rotation-stopping member 506 has a conical surface 506c and an outer peripheral surface 506b located on the front side of the conical surface 506c. Four projections 506d are formed on the outer peripheral surface 506b. In some examples, an upper surface of the projection 506d has a ridge portion 506dl extending rearward from the front end, and a curved portion 506d2 which is curved in an arc shape to bulge into the rear end of the ridge portion 506dl.

[0132] Two of the four projections 506d are inserted into the first locking portion 504g1 of the tube 504, and the remaining two projections of the four projections 506d are inserted into the second locking portion 504g2 of the tube 504. The width of the second extension portion 504k is greater than the width of the first extension portion 504h. Consequently, the projection 506d can be smoothly inserted into the second locking portion 504g2. Conversely, the projection 506d entering the first locking portion 504g1 can be moved towards the extension portion 504j by pushing and spreading the first extension portion 504h. Then, the projection 506d reaching the extension portion 504j is gripped by the first extension portion 504h. As a result, the 506d projection can be firmly attached to the first locking part 504g 1.

[0133] As described above, in the example of the cosmetic material dispensing container 500, as well as in the example of the cosmetic material dispensing container 210 described previously, the end surface 504f of the tube 504 is inclined with respect to the plane orthogonal to the axial direction. Consequently, the projection 506d can smoothly engage with the locking portion 504g along the end surface 504f. Furthermore, the projection 506d is locked in a state where it is gripped by the first locking portion 504g 1 (first extension portion 504h). As a result, the tube 504 can be more reliably prevented from falling off the rotation stop 506.

[0134] A cosmetic material dispensing container 600, according to yet another example, will be described with reference to [Fig. 27]. As illustrated in [Fig. 27], the example of a cosmetic material dispensing container 600 includes a front cylinder 602 that differs from the front cylinder 2 described above. One tip of the front cylinder 602 has a stepped portion 602h that projects inward in the radial direction. According to some examples, the length of the stepped portion 602h in the axial direction may be shorter than the length of the stepped portion 2h described above (see [Fig. 4A] or [Fig. 4B]) in the axial direction. As an example, the length of the stepped part 602h in the axial direction can be approximately the same as the thickness in the radial direction of the front cylinder 602 of a part located in a base of the stepped part 602h.

[0135] As described above, in the example of the cosmetic material dispensing container 600, the length in the axial direction of the stepped portion 602h projecting inwards in the radial direction of the front cylinder 602 at the tip of the front cylinder 602 is approximately identical to the thickness of the portion of tip of the anterior cylinder 602. Therefore, the contact area between the stepped portion 602h and the cosmetic material M can be reduced by shortening the length of the stepped portion 602h of the anterior cylinder 602 in the axial direction. Consequently, it is possible to prevent or inhibit a rupture of the cosmetic material M in the contact area.

[0136] Next, a cosmetic substance dispensing container 701, according to yet another example, will be described with reference to [Fig. 28]. As illustrated in [Fig. 28], in the cosmetic substance dispensing container 701, a tube 704 has a different position relative to the front cylinder 2 in the examples described previously. The tube 704 is fixed in a state where it protrudes from the opening 2b of the front cylinder 2.

[0137] As described above, in the example of the cosmetic material dispensing container 701, the tube 704 filled with the cosmetic material M is fixed inside the front cylinder 2 in a position where it protrudes from the opening 2b of the front cylinder 2. Consequently, the cosmetic material M does not come into contact with the front cylinder 2 when the cosmetic material M is dispensed. As a result, rupture of the cosmetic material M due to contact with the front cylinder 2 can be prevented.

[0138] Up to now, cosmetic material dispensing containers have been described in various embodiments. However, the cosmetic material dispensing container according to the present disclosure can be further modified. For example, although the cosmetic material dispensing container 100, including the ratcheting member 7 configured to dispense the cosmetic material by operating a rotary coupling in a single direction of rotation, has been described, the cosmetic material dispensing container can be adapted to dispense the cosmetic material by operating the rotary coupling in two directions of rotation (for example, both the first direction and the second direction opposite to the first). In this case, the ratcheting member 7 can be omitted, and the number of components can be reduced to simplify the configuration.Furthermore, although the example of the cosmetic dispensing container 100 in which only tube 1 can be replaced has been described, the replaceable component is not limited to tube 1, and the configuration can be modified as appropriate. For example, other components can be replaced along with tube 1.

[0139] Furthermore, although the example of the cosmetic material dispensing container 100 in which the cosmetic material M is moved forward by the relative rotation of the container body 3 and the rear cap 4 has been described, the cosmetic material dispensing container can be configured such that the cosmetic material moves forward by the relative rotation of the front cylinder and the The container body. The configuration of the dispensing mechanism that distributes the cosmetic product can be modified as needed. Furthermore, the cosmetic dispensing container can incorporate a knock-type extrusion mechanism instead of the dispensing mechanism that distributes the cosmetic product.

[0140] Furthermore, in the cosmetic material dispensing container 100, when the front cylinder 2 is detached from the container body 3 and the tube 1 is detached from the push bar 5, the rotation stop member 6 and the push bar 5 rotate, and the push bar 5 moves backwards due to the excitation force of the spring member 9. In other examples, the cosmetic material dispensing container can be configured so that the push bar is moved manually backwards (for example, by relative rotation) instead of by the excitation force of the spring member.

[0141] It is understood that not all aspects, advantages, and features described in this document can necessarily be realized or included in a particular example. Indeed, after describing and illustrating various examples in this document, it should be evident that other examples may be modified in their arrangement and that details are omitted.

Claims

Demands

1. Cosmetic material dispensing container comprising: a cylindrical tube (1; 24; 214; 504; 704) which holds a cosmetic material; a front cylinder (2; 602) which removably holds the tube (1; 24; 214; 504; 704) inside, in which the front cylinder (2; 602) forms an opening (2b) to expose the cosmetic material; a container body (3; 23; 213; 503) which is detachably coupled with the front cylinder (2; 602), in order to replace the tube (1; 24; 214; 504; 704) when the front cylinder (2; 602) is detached from the container body (3; 23; 213; 503); a cylindrical female screw element (8) which is located inside the container body (3; 23; 213; 503) and rotationally fixed with the container body (3; 23; 213; 503), in which the female screw element (8) forms a female screw thread (8c); a push bar (5;27) including a male screw thread (5d) engaging in the female screw thread (8c) of the female screw member (8), in which the push bar (5; 27) is configured to push the cosmetic material received in the tube (1; 24; 214; 504; 704) towards an outside of the tube (1; 24; 214; 504; 704); and a rotation stop member (6; 26; 216; 406; 506) which is configured to fix the push bar (5; 27) in rotation relative to the front cylinder (2; 602) in a circumferential direction.

2. Cosmetic material dispensing container according to claim 1, wherein the rotation stop member (6; 26; 216; 406; 506) has a projection (26d) on an outer peripheral surface, and the tube (1; 24; 214; 504; 704) has a groove (24g) for inserting the projection (26d) of the rotation stop member (6; 26; 216; 406; 506), from an end portion of the tube (1; 24; 214; 504; 704).

3. A cosmetic material dispensing container according to claim 1 or 2, wherein the push bar (5; 27) is configured to move in an axial direction towards the opening (2b) of the front cylinder (2; 602) when the container body (3; 23; 213; 503) is rotated in a first direction relative to the female screw member (8), wherein the female screw member (8) includes a first tooth of ratchet (8b), wherein the cosmetic material dispensing container includes a ratchet element (7) provided inside the container body (3; 23; 213; 503), to limit the rotation of the container body (3; 23; 213; 503) in a second direction opposite to the first direction, relative to the female screw element (8), wherein the ratchet element (7) has a second ratchet tooth (7q) which engages with the first ratchet tooth (8b) of the female screw element (8).

4. Cosmetic material dispensing container according to claim 3, wherein the rotation stop member (6; 26; 216; 406; 506) has a substantially cylindrical shape and is rotationally fixed with the ratchet member (7) when the front cylinder (2; 602) is coupled to the container body (3; 23; 213; 503), and wherein, when the front cylinder (2; 602) is detached from the container body (3; 23; 213; 503), the rotation stop member (6; 26; 216; 406; 506) is movable in the axial direction to disengage from the ratchet member (7), so as to be able to rotate in the circumferential direction relative to the ratchet member (7).

5. Cosmetic material dispensing container according to any one of claims 1 to 4, wherein the container body (3; 23; 213; 503) has an open end (3g) opposite the front cylinder (2; 602), and wherein the cosmetic material dispensing container further comprises a rear cap (4) for sealing the open end (3g) of the container body (3; 23; 213; 503).

6. Cosmetic material dispensing container according to any one of claims 1 to 5, wherein the push bar (5; 27) has a front end which is coupled to the tube (1), and a rear end opposite to the front end in an axial direction, wherein the tube (1) can be detached from the push bar (5; 27) to be replaced by a new tube (1), and wherein the cosmetic material dispensing container further comprises a spring member (9) for stressing the push bar (5; 27) towards the rear end, when the tube (1) is detached from the push bar (5; 27).

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