Dispensing container for rod-shaped decorative material

Abstract

This prevents the core from coming loose or breaking in rod-shaped decorative materials. [Solution] The rod-shaped decorative material dispensing container 1 comprises a core chuck member 10 having a plurality of claw pieces 12, 112 that hold the outer surface of the rod-shaped decorative material A, and a base portion 15 on which the plurality of claw pieces 12, 112 are erected; a front cylinder 20 having a through hole 20a through which the rod-shaped decorative material A can move forward and backward, and a guide groove 21 that guides the claw pieces 12, 112 along the axial direction; and a dispensing mechanism that moves the rod-shaped decorative material A forward and backward from the tip opening 20b of the front cylinder 20 by the relative rotation of the front cylinder 20 and a base cylinder 30 which is assembled to the front cylinder 20 so as to be rotatable relative to the front cylinder 20. The claw pieces 12 are provided with protrusions 13 that are formed to protrude from the circumferential ends of the claw pieces 12, and radial outward deformation of the claw pieces 12 provided with the protrusions 13 is limited by the protrusions 13 contacting an inner circumferential surface 22 formed on the front cylinder 20 as a restricting portion.

Description

Technical Field

[0001] The present invention relates to a container for feeding out a rod-shaped cosmetic material.

Background Art

[0002] Patent Document 1 describes a rod-shaped cosmetic material feeding-out container including a plurality of claw pieces for holding a rod-shaped cosmetic material, and a tip cylinder in which a sliding groove for accommodating the claw pieces is formed. Further, in the invention described in Patent Document 1, the claw pieces holding the rod-shaped cosmetic material are in a state of constantly abutting against the sliding groove.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Due to recent technological innovations, cosmetics such as eyeliners can be manufactured to be softer and finer. Also, generally, the outer diameter dimension of the rod-shaped cosmetic material is formed slightly larger than the inner diameter dimension of the holding portion for holding the cosmetic material. Therefore, when the rod-shaped cosmetic material is held by claw pieces that constantly abut against a sliding groove formed in a tip cylinder as described in Patent Document 1, the holding force of the claw pieces acting on the rod-shaped cosmetic material becomes large, and there is a risk that core breakage in which the rod-shaped cosmetic material breaks may easily occur.

[0005] In order to avoid such a phenomenon, it is conceivable to prevent the claw pieces from abutting against the sliding groove. However, in this case, the area where the claw pieces can hold the rod-shaped cosmetic material becomes small due to the claw pieces being pushed outward in the radial direction, and there is a risk that the cosmetic material may easily come out of the cosmetic material holding portion due to a slight impact such as dropping, resulting in core removal.

[0006] This invention has been made in view of the above technical problems, and aims to prevent the occurrence of core detachment or core breakage in rod-shaped decorative materials. [Means for solving the problem]

[0007] The present invention relates to a rod-shaped decorative material dispensing container, comprising: a rod-shaped decorative material holding member having a plurality of claw pieces extending along the axial direction of the rod-shaped decorative material and holding the outer circumferential surface of the rod-shaped decorative material, and a base portion on which the plurality of claw pieces are erected; a tip cylinder having a through hole formed to penetrate in the axial direction and through which the rod-shaped decorative material can move forward and backward, and a guide groove formed along the through hole for guiding the claw pieces along the axial direction; a base cylinder assembled to the tip cylinder so as to be rotatable relative to the tip cylinder; and a dispensing mechanism that moves the rod-shaped decorative material held by the rod-shaped decorative material holding member forward and backward from the tip opening of the through hole of the tip cylinder by relative rotation of the tip cylinder and the base cylinder, wherein at least one of the plurality of claw pieces is provided with a projection formed protruding from the circumferential end of the claw piece, and radial outward deformation of the claw piece provided with the projection is limited by the projection abutting against a restricting portion formed on the tip cylinder. [Effects of the Invention]

[0008] According to the present invention, it is possible to prevent the core from coming loose or breaking in rod-shaped decorative materials. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 shows a rod-shaped decorative material dispensing container according to an embodiment of the present invention, where (a) is a front cross-sectional view showing the rod-shaped decorative material holding member in the retracted position, and (b) is a cross-sectional view along the IB-IB line in Figure 1(a), showing the rod-shaped decorative material holding member in the forward position. [Figure 2] Figure 2 is a cross-sectional view along the line II-II in Figure 1(b). [Figure 3] Figure 3 shows the state before the rod-shaped decorative material is inserted into the rod-shaped decorative material holding member, and is a cross-sectional view corresponding to Figure 2. [Figure 4] Figure 4 shows a rod-shaped decorative material holding member, where (a) is a front view and (b) is a side view. [Figure 5] Figure 5 is an enlarged view of the rod-shaped decorative material holding portion of the rod-shaped decorative material holding member, where (a) is a front view, (b) is a side view, and (c) is a cross-sectional view along the VC-VC line in Figure 5(b). [Figure 6] Figure 6 is an enlarged view showing the rod-shaped decorative material holding portion of the rod-shaped decorative material holding member of a rod-shaped decorative material dispensing container according to a first modified embodiment of the present invention, where (a) is a front view, (b) is a side view, and (c) is a cross-sectional view along the VIC-VIC line in Figure 6(b). [Figure 7] Figure 7 is a cross-sectional view along the line VII-VII in Figure 6(a), showing the state before the rod-shaped decorative material is inserted into the rod-shaped decorative material holding member. [Figure 8] Figure 8 is a cross-sectional view of the rod-shaped decorative material holding member of a rod-shaped decorative material dispensing container according to a second modified embodiment of the present invention, and is a cross-sectional view showing the cross-section corresponding to Figure 7. [Figure 9] Figure 9 is a cross-sectional view of the rod-shaped decorative material holding member of a rod-shaped decorative material dispensing container according to a third modified embodiment of the present invention, and is a cross-sectional view showing the cross-section corresponding to Figure 7. [Modes for carrying out the invention]

[0010] Embodiments of the present invention will be described below with reference to the drawings.

[0011] First, with reference to Figures 1 to 5, a rod-shaped cosmetic material dispensing container 1 (hereinafter simply referred to as "dispensing container 1") according to an embodiment of the present invention will be described.

[0012] Figure 1 shows the dispensing container 1, where (a) is a front cross-sectional view showing the core chuck member 10 (described later) in its retracted position, and (b) is a cross-sectional view along the IB-IB line in (a), showing the core chuck member 10 in its forward position. Note that in Figure 1(b), the cap 2 (described later) is omitted. Figure 2 is a cross-sectional view along the II-II line in Figure 1(b), and Figure 3 shows the state before the rod-shaped decorative material A is inserted into the core chuck member 10 in Figure 2. Note that Figure 2 is also a cross-sectional view along the II-II line in Figure 5(a) with the tip cylinder 20 added. Figure 4 shows the core chuck member 10, where (a) is a front view and (b) is a side view. Figure 5 is an enlarged view of the decorative material holding part 11, where (a) is a front view, (b) is a side view, and (c) is a cross-sectional view along the VC-VC line in Figure 5(b).

[0013] As shown in Figures 1(a) and (b), the dispensing container 1 is a container capable of dispensing a rod-shaped decorative material A with a substantially circular cross-sectional shape. The rod-shaped decorative material A is a molded core formed into a rod shape, and is used, for example, as an eyebrow pencil, eyeliner, and lip liner. The outer diameter of the rod-shaped decorative material A is formed to be slightly larger than the inner diameter of the decorative material holding part 11 (see Figures 2 and 3), which will be described later.

[0014] The dispensing container 1 comprises a tip cylinder 20 having a through hole 20a through which a rod-shaped decorative material A can move forward and backward, a base cylinder 30 assembled to the tip cylinder 20 so as to be rotatable relative to it, a core chuck member 10 as a rod-shaped decorative material holding member for holding the rod-shaped decorative material A, a female thread cylinder 40 provided inside the base cylinder 30 so as not to rotate relative to the base cylinder 30, a coil spring 50 provided in a compressed state between the tip cylinder 20 and the female thread cylinder 40, and a cap 2 that covers the tip opening 20b of the through hole 20a and protects the rod-shaped decorative material A.

[0015] Hereinafter, the direction along the central axis of the through-hole 20a in the tip cylinder 20 is referred to as the "axial direction", the direction around the central axis of the through-hole 20a is referred to as the "circumferential direction", and the radial direction centered on the central axis of the through-hole 20a is referred to as the "radial direction". Also, the movement of the rod-shaped cosmetic material A being fed out from the feeding container 1 is referred to as "forward movement", the direction in which the rod-shaped cosmetic material A is fed out is referred to as "front", the movement of the rod-shaped cosmetic material A being retracted into the feeding container 1 is referred to as "backward movement", and the direction in which the rod-shaped cosmetic material A is retracted is referred to as "back".

[0016] The tip cylinder 20 is a resin cylindrical member in which a through-hole 20a through which the rod-shaped cosmetic material A can move forward and backward is formed axially. The cross-sectional shape of the through-hole 20a is similar to the cross-sectional shape of the rod-shaped cosmetic material A and is formed in a substantially circular shape.

[0017] In addition to the through-hole 20a, the tip cylinder 20 is provided with a plurality of guide grooves 21 that guide the core chuck member 10 along the axial direction along the through-hole 20a, and on its outer surface, there are provided a gripping portion 24 that a user grips, and a fitting portion 27 that is formed continuously with the gripping portion 24 in the axial direction and is fitted into the base cylinder 30.

[0018] The guide grooves 21 are provided corresponding to later-described claw pieces 12, 112 provided on the core chuck member 10, and are provided in the same number as the number of claw pieces 12, 112. In the present embodiment shown in FIGS. 1 to 5, four guide grooves 21 are provided for the four claw pieces 12, 112, but the guide grooves 21 only need to be provided corresponding to the claw pieces. For example, when two claw pieces are provided, two guide grooves 21 are provided, and when three claw pieces are provided, three guide grooves 21 are provided.

[0019] By providing a plurality of such guide grooves 21, the inner peripheral surface 22 of the through-hole 20a with which the outer peripheral surface of the rod-shaped cosmetic material A can be in sliding contact is divided into a plurality of parts in the circumferential direction as shown in FIGS. 2 and 3. The inner peripheral surfaces 22 of the through-hole 20a divided in the circumferential direction are each formed in a curved surface shape so as to constitute a part of an arc centered on the central axis.

[0020] The multiple inner circumferential surfaces 22 can constantly support the outer circumferential surface of the rod-shaped decorative material A along the axial direction between adjacent claw pieces 12, 112, thereby stabilizing the forward and backward movement of the rod-shaped decorative material A. As a result, even if the rod-shaped decorative material A is extremely thin and soft and prone to breakage due to a long extension stroke, core breakage due to inclination of the rod-shaped decorative material A can be prevented from the retraction limit to the forward limit.

[0021] Furthermore, the bottom surface, which is the inner circumferential surface on the radially outer side of the guide groove 21, is formed in a curved shape so as to constitute a part of an arc centered on the central axis. The claw pieces 12 and 112 of the core chuck member 10, which will be described later, are located within the guide groove 21, and the engaging ridge portion 16, which will be described later, engages with them.

[0022] Furthermore, as shown in Figure 1(b), the guide groove 21 is formed all the way to the rear end surface 22a on the side of the front cylinder 20, and on the side of the tip opening 20b of the through hole 20a, it is formed only up to just before the tip opening 20b, without reaching the tip opening 20b.

[0023] The gripping portion 24, which is grasped by the user, is tapered in the axial direction so that its outer diameter gradually decreases from the insertion portion 27 side towards the tip.

[0024] The outer circumferential surface of the insertion portion 27 is formed with an annular fitting projection 25 that fits into a fitting recess 32 formed in the base cylinder 30 (described later), and an O-ring groove 26 into which the O-ring 4 is mounted. The O-ring 4 is provided in a compressed state between the tip cylinder 20 and the base cylinder 30, thereby creating appropriate resistance when the tip cylinder 20 and the base cylinder 30 are rotated relative to each other. This improves the user's feel when operating the device.

[0025] The base cylinder 30 is a resin member formed in the shape of a bottomed cylinder, which houses the core chuck member 10 and has a housing hole 33 into which the fitting portion 27 of the tip cylinder 20 is fitted and into which the female thread cylinder 40 is inserted. The housing hole 33 is provided, in order from the open end side, with an annular fitting recess 32 into which the fitting projection 25 of the tip cylinder 20 is fitted, knurling (not shown) that engages with vertical ribs (not shown) formed on the outer circumferential surface of the female thread cylinder 40, and a stepped portion 35 that restricts the movement of the female thread cylinder 40 toward the bottom surface.

[0026] Furthermore, the outer surface of the base cylinder 30 is formed with an annular fitting recess 31 into which the fitting projection 2a of the cap 2 is fitted, and an O-ring groove 34 into which the O-ring 5 is installed. When the cap 2 is attached to the base cylinder 30, the O-ring 5 is compressed by the cap 2 and the base cylinder 30, sealing the space in which the rod-shaped decorative material A is provided. This prevents volatile components from evaporating from the rod-shaped decorative material A and causing the rod-shaped decorative material A to deteriorate.

[0027] The core chuck member 10 is a resin member provided to hold the rod-shaped decorative material A inside the dispensing container 1, and as shown in Figure 4, it has a plurality of claw pieces 12, 112 extending along the axial direction of the rod-shaped decorative material A, and a base portion 15 on which the plurality of claw pieces 12, 112 are erected.

[0028] Multiple claw pieces 12, 112 are formed with a base end connected to the base portion 15 as a fixed end and tip portions 12c, 112c located on the opposite side in the axial direction from the base end as free ends. These claw pieces 12, 112 are formed with a radial thickness of approximately 0.60 mm.

[0029] As shown in Figures 2 and 3, the multiple claw pieces 12, 112 are arranged at approximately equal intervals in the circumferential direction so as to surround the outer surface of the rod-shaped decorative material A, thereby holding the outer surface of the rod-shaped decorative material A. Together with the base end face 15a formed on the base portion 15 as a bottom surface that holds the bottom of the rod-shaped decorative material A, they function as a decorative material holding portion 11 that holds the rod-shaped decorative material A.

[0030] The decorative material holding portion 11, which is composed of multiple claw pieces 12, 112 and the base portion end face 15a of the base portion 15, is loaded with a rod-shaped decorative material A that is soft, small in diameter, and has a perfectly circular cross-section. The outer diameter of the rod-shaped decorative material A is, for example, about 1.5 to 2.0 mm.

[0031] As shown in Figures 2 to 5, each claw piece 12, 112 is erected axially from the base end face 15a, and their outer circumferential surfaces are formed to have a smaller diameter than the outer circumferential surface of the engagement ridge 16 provided on the base 15, which will be described later. In addition, the inner circumferential surfaces of each claw piece 12, 112 are shaped to match the outer circumferential surface of the rod-shaped decorative material A, and are formed in a curved shape when the cross-sectional shape of the rod-shaped decorative material A is circular.

[0032] Here, thanks to recent technological advancements, the rod-shaped decorative material A, such as an eyeliner, held by the core chuck member 10 can be manufactured to be softer and even thinner. Also, generally, the outer diameter of the rod-shaped decorative material A is formed to be slightly larger than the inner diameter of the decorative material holding part 11.

[0033] Therefore, if the rod-shaped decorative material A is held in place by, for example, a claw-shaped piece formed to prevent deformation radially outward, the holding force of the claw-shaped piece acting on the rod-shaped decorative material A will increase, which may make the rod-shaped decorative material A more prone to breaking.

[0034] On the other hand, when a rod-shaped decorative material A is inserted between claw pieces 12, 112 that are formed to be deformable radially outward, the claw pieces 12, 112 are pushed outward radially. Specifically, the tip portions 12c, 112c, which are the free ends of the claw pieces 12, 112, are displaced radially outward from the base portions of the claw pieces 12, 112 that are connected to the base portion 15, causing the claw pieces 12, 112 to be inclined. If the claw pieces 12, 112 are formed to be freely deformable radially outward without restriction, the area over which the claw pieces 12, 112 can hold the rod-shaped decorative material A becomes smaller, and there is a risk that the rod-shaped decorative material A will easily come out of the decorative material holding portion 11 even with a slight impact such as dropping.

[0035] Therefore, in the dispensing container 1 according to this embodiment, a protrusion 13, described later, is provided on the claw piece 12 that holds the outer surface of the rod-shaped decorative material A, and this protrusion 13 abuts against a restricting portion, described later, formed on the tip cylinder 20, thereby limiting the deformation of the claw piece 12 radially outward.

[0036] Specifically, as shown in Figures 2 to 5, the protrusion 13 is a portion formed to project from the circumferential end of the claw piece 12 along the outer surface of the rod-shaped decorative material A, and is formed such that, for example, its radial thickness is approximately 0.05 mm. The length of the protrusion 13 in the circumferential direction is set to extend beyond the circumferential end of the guide groove 21 (for example, approximately 0.08 to 0.12 mm), and is formed to extend so that at least a portion of the protrusion 13 is located between the outer surface of the rod-shaped decorative material A and the inner surface 22 of the through hole 20a which functions as a restricting portion.

[0037] Furthermore, as shown in Figures 4 and 5, multiple protrusions 13 are provided on the claw piece 12 at predetermined intervals along the axial direction.

[0038] In the embodiment shown in Figures 2 to 5, the projection 13 is provided only on a pair of first claw pieces 12 that are positioned opposite each other across the central axis, while the projection 13 is not provided on another pair of second claw pieces 112 that are positioned opposite each other across the central axis. However, the projection 13 only needs to be provided on at least one of the multiple claw pieces 12, 112. For example, it may be provided on only one of the pair of first claw pieces 12, or it may be provided on all of the multiple claw pieces 12, 112.

[0039] As shown in Figure 3, before the claw pieces 12 and 112 hold the rod-shaped decorative material A, a gap G1 of a predetermined size is provided radially between the inner circumferential surface 22 and the protrusion 13. The radial gap G1 between the inner circumferential surface 22 and the protrusion 13 is a gap formed in a direction parallel to the direction (radial direction) in which the claw piece 12 on which the protrusion 13 is provided deforms when holding the rod-shaped decorative material A.

[0040] As a result, when a rod-shaped decorative material A, whose outer diameter is slightly larger than the inner diameter of the decorative material holder 11, is inserted into the decorative material holder 11, the claw piece 12 deforms and tilts radially outward. However, the magnitude of this tilt, that is, the magnitude of the deformation, is limited to a predetermined size, as shown in Figure 2, because the protrusion 13 abuts against the inner circumferential surface 22 of the through hole 20a, and the size of the radial gap G1 between the inner circumferential surface 22 and the protrusion 13 becomes zero.

[0041] By restricting the deformation of the claw piece 12 in this way, an area is secured for the claw piece 12 to hold the rod-shaped decorative material A, thereby suppressing the occurrence of core loss, where the rod-shaped decorative material A comes out of the decorative material holding part 11. Although the protrusion 13 is formed along the outer circumferential surface of the rod-shaped decorative material A, as described above, it is provided with the intention of contacting the inner circumferential surface 22 of the through hole 20a, and is not provided to hold the outer circumferential surface of the rod-shaped decorative material A. Therefore, it is not necessary for the radially inner surface of the protrusion 13 to be in contact with the outer circumferential surface of the rod-shaped decorative material A.

[0042] Furthermore, the formation of a gap G1 between the inner circumferential surface 22 and the protrusion 13 allows the claw piece 12 to deform radially outward to a certain extent when the rod-shaped decorative material A is inserted into the decorative material holding part 11. As a result, the holding force of the claw piece 12 acting on the rod-shaped decorative material A is not excessive, compared to the case where radial outward deformation of the claw piece is not allowed. Consequently, the occurrence of core breakage, which causes the rod-shaped decorative material A to break, can be suppressed.

[0043] Furthermore, the extent to which deformation of the claw pieces 12 that occurs when the rod-shaped decorative material A is loaded into the decorative material holding part 11 is to be tolerated can be arbitrarily changed by changing the size of the gap G1 (see Figure 3) formed between the inner circumferential surface 22 and the protrusion 13 in the state before the claw pieces 12, 112 hold the rod-shaped decorative material A.

[0044] Furthermore, the inner circumferential surface 22 of the through hole 20a, which is used as a restricting portion against which the protrusion 13 abuts, is conventionally provided on the tip cylinder 20 to support the outer circumferential surface of the rod-shaped decorative material A along the axial direction. Therefore, there is no need to separately form a part that functions as a restricting portion on the tip cylinder 20, and it is possible to reuse the conventional tip cylinder 20. As a result, even if the protrusion 13 is provided on the claw piece 12 to restrict the radial outward deformation of the claw piece 12, an increase in the manufacturing cost of the dispensing container 1 can be suppressed.

[0045] Furthermore, as shown in Figure 5, each pair of first claw pieces 12 is provided with multiple exposed portions 12a that partially expose the outer surface of the rod-shaped decorative material A.

[0046] The exposed portion 12a is a notch provided to reduce the rigidity of the claw piece 12, and as shown in Figure 5, it is formed by cutting out alternating, roughly triangular notches in the axial direction at the circumferential ends of the claw piece 12.

[0047] As multiple exposed portions 12a are arranged alternately in the axial direction, a curved portion 12d is formed on the claw piece 12, which bends and meanders repeatedly in the circumferential direction from the base end connected to the base portion 15 toward the tip portion 12c.

[0048] The exposed portion 12a may have any shape as long as it reduces the rigidity of the claw piece 12. For example, it may be a through-hole with a circular or rectangular cross-section formed by passing through the claw piece 12 radially, or it may be formed by cutting out a rectangular, semicircular, or U-shaped notch at the circumferential end of the claw piece 12.

[0049] As the claw piece 12 is provided with a curved portion 12d having multiple exposed portions 12a, the rigidity of the claw piece 12 is reduced compared to the case where the curved portion 12d is not provided, making the claw piece 12 more easily deformable. Therefore, even if the rod-shaped decorative material A is a molded core made of soft and extremely thin material, the claw piece 12 with the curved portion 12d can gently and loosely hold the outer surface of the rod-shaped decorative material A by wrapping around it, and as a result, the occurrence of core breakage, which causes the rod-shaped decorative material A to break, can be suppressed.

[0050] In the embodiment shown in Figures 2 to 5, of the four claw pieces 12, 112, only a pair of first claw pieces 12 that are arranged opposite each other across the central axis are provided with a curved portion 12d having an exposed portion 12a, and another pair of second claw pieces 112 that are arranged opposite each other across the central axis are not provided with a curved portion 12d. However, in order to gently and loosely hold the outer surface of the rod-shaped decorative material A, it is preferable to also provide a curved portion 12d to the pair of second claw pieces 112. Furthermore, since the curved portion 12d can be effective if it is provided on at least one of the multiple claw pieces 12, 112, for example, it may be provided on only one of the pair of first claw pieces 12.

[0051] Furthermore, of the ends that make up each exposed portion 12a, the ends located on the front side are retaining portions 12b1 and 12b2 that function as engaging portions that engage with the outer circumferential surface of the rod-shaped decorative material A in the axial direction.

[0052] The retaining portions 12b1 and 12b2 are edge portions formed by two planes: the end face that demarcates the front side of the exposed portion 12a and the radially inner surface of the claw piece 12 that contacts the rod-shaped decorative material A. The retaining portions 12b1 and 12b2 bite into the outer circumferential surface of the rod-shaped decorative material A inserted into the decorative material holding portion 11, thereby firmly engaging the decorative material holding portion 11 with the rod-shaped decorative material A. It is preferable that the angle of the edge portion formed by the two planes is 90 degrees or less.

[0053] By providing these retaining parts 12b1 and 12b2 on each exposed part 12a, even if the rod-shaped decorative material A is about to move forward in the axial direction due to impact or the like, the outer circumference of the rod-shaped decorative material A will catch on the retaining parts 12b1 and 12b2 that extend in the circumferential direction, thereby preventing the rod-shaped decorative material A from coming out of the decorative material holding part 11.

[0054] Furthermore, it is preferable that the retaining portions 12b1 and 12b2 formed from the circumferential ends of the claw piece 12 extend beyond the circumferential center of the claw piece 12. By increasing the circumferential length of the retaining portions 12b1 and 12b2 in this way, the range in which they engage with the outer surface of the rod-shaped decorative material A is expanded, thereby reliably preventing the rod-shaped decorative material A from coming loose.

[0055] Furthermore, the retaining portion 12b2, which is formed at an inclination with respect to the axial direction, also functions as an engaging portion that engages with the outer circumferential surface of the rod-shaped decorative material A in the circumferential direction. Even if the rod-shaped decorative material A is about to rotate in the circumferential direction when in use, the outer circumferential surface of the rod-shaped decorative material A catches on the retaining portion 12b2 in the circumferential direction, thereby preventing the rod-shaped decorative material A from rotating.

[0056] By providing multiple exposed portions 12a with retaining portions 12b1 and 12b2 on the claw piece 12 in this manner, it is possible to sufficiently prevent the rod-shaped decorative material A from coming loose and rotating, even when the circumferential width dimension of the claw piece 12 is small in order to hold the rod-shaped decorative material A.

[0057] Furthermore, tapered surfaces 12e and 112e are formed on the radially inner surfaces of the tip portions 12c and 112c of each claw piece 12 and 112, respectively, which are inclined radially outward toward upward.

[0058] Each tapered surface 12e, 112e is inclined to move away from the outer surface of the rod-shaped decorative material A as it approaches the tip of the tip portions 12c, 112c, and is formed so that the inner diameter of the decorative material holding portion 11, which is the distance between the opposing claw pieces 12, 112, increases as it approaches the tip of the tip portions 12c, 112c.

[0059] By providing such tapered surfaces 12e and 112e on each claw piece 12 and 112, it becomes easier to insert the rod-shaped decorative material A into the decorative material holding part 11, and it is possible to prevent the outer circumference of the rear end of the rod-shaped decorative material A from being scraped off by the claw pieces 12 and 112 when inserting the rod-shaped decorative material A.

[0060] As shown in Figures 4(a) and (b), the base portion 15 on which each of the aforementioned claw pieces 12 and 112 is erected is provided with an engagement ridge 16 that engages in the circumferential direction with the guide groove 21 formed in the tip cylinder 20, and a male screw portion 17 that is formed axially continuously from the engagement ridge 16. Furthermore, as described above, a base portion end face 15a is formed at the end of the base portion 15 on which the claw pieces 12 and 112 are erected, facing the lower end face of the rod-shaped decorative material A held by the core chuck member 10.

[0061] The engaging ridge portion 16 is a projection formed linearly along the axial direction, continuous with the base ends of the claw pieces 12 and 112, and is formed on the outer circumference of the portion between the base end face 15a and the male thread portion 17. By engaging the engaging ridge portions 16 with the guide grooves 21 formed in the tip cylinder 20, relative rotation in the circumferential direction between the tip cylinder 20 and the core chuck member 10 is restricted.

[0062] Between adjacent engagement grooves 16, grooves are formed, extending to an end face 19 provided to define the limit of the forward movement of the core chuck member 10. When the core chuck member 10 is advanced within the tip cylinder 20 toward the tip opening 20b, this end face 19 comes into contact with the rear end face 22a of the tip cylinder 20, thereby limiting the forward movement of the core chuck member 10.

[0063] The male thread portion 17 consists of multiple projections arranged in a row at intervals along the axial direction, which are part of the male thread of a single-start thread. Two rows of these projections are provided along the axial direction, continuous with the engagement groove portion 16. The male thread portion 17 is screwed into the female thread portion 41 of the female thread cylinder 40 (see Figure 1(a)), which will be described later.

[0064] Furthermore, the outer diameter of the male thread portion 17 is smaller than the outer diameter of the engagement ridge portion 16, and when the core chuck member 10 retracts, the lower end surface 18 of the engagement ridge portion 16 comes into contact with the upper end surface 44 of the female thread cylinder 40 (described later), thereby limiting the retraction of the core chuck member 10.

[0065] As shown in Figures 1(a) and (b), the female threaded cylinder 40 is a cylindrical resin member formed by an axially penetrating female threaded portion 41 into which the male threaded portion 17 of the core chuck member 10 is screwed. It has a rear end surface 43 that abuts against the stepped portion 35 of the base cylinder 30 when inserted into the base cylinder 30, an upper end surface 44 that abuts against the lower end surface 18 of the core chuck member 10 to limit the retraction of the core chuck member 10, and a spring receiving portion 42 on which the biasing force of the coil spring 50 acts.

[0066] The female threaded cylinder 40 is fixed in place by being pressed toward the base cylinder 30 by the biasing force of a coil spring 50 that is compressed and placed between the end cylinder 20 and the female threaded cylinder 40.

[0067] Furthermore, multiple longitudinal ribs (not shown) extending in the axial direction are formed on the outer circumferential surface of the female threaded cylinder 40 at equal intervals in the circumferential direction. The longitudinal ribs engage with the knurling (not shown) formed on the inner circumferential surface of the base cylinder 30 and function as a rotation stopper, preventing the female threaded cylinder 40 from rotating relative to the base cylinder 30.

[0068] With the male threaded portion 17 of the core chuck member 10 screwed into the female threaded portion 41 of the female threaded cylinder 40, when the front cylinder 20 and the base cylinder 30 are rotated relative to each other, the core chuck member 10 rotates integrally with the front cylinder 20, and the female threaded cylinder 40 rotates integrally with the base cylinder 30, causing the core chuck member 10 and the base cylinder 30 to rotate relative to each other. As a result, the male threaded portion 17 of the core chuck member 10 rotates relative to the female threaded portion 41, causing the core chuck member 10 to move relative to the female threaded cylinder 40 in the axial direction. In other words, the relative rotation of the front cylinder 20 and the base cylinder 30 constitutes a feeding mechanism that moves the rod-shaped decorative material A held by the core chuck member 10 forward and backward from the tip opening 20b of the through hole 20a of the front cylinder 20.

[0069] In this manner, the dispensing container 1 is configured with a female screw cylinder 40 and a core chuck member 10 to dispense the rod-shaped decorative material A in the axial direction. When the front cylinder 20 and the base cylinder 30 are rotated relative to each other, the core chuck member 10 moves axially back and forth within the front cylinder 20 and the base cylinder 30, and the rod-shaped decorative material A moves back and forth in accordance with the movement of the core chuck member 10.

[0070] Specifically, when the user rotates the front cylinder 20 and the base cylinder 30 relative to each other in the forward direction, the core chuck member 10 moves axially toward the tip opening 20b of the front cylinder 20, advancing the rod-shaped decorative material A. This causes the rod-shaped decorative material A to be fed out from the tip opening 20b. On the other hand, when the user rotates the front cylinder 20 and the base cylinder 30 relative to each other in the opposite direction, the core chuck member 10 moves in the opposite direction, retracting the rod-shaped decorative material A. This causes the rod-shaped decorative material A to be retracted.

[0071] <First variation> Next, with reference to Figures 6 and 7, the configuration of the decorative material holding portion 211 in the core chuck member 210, which serves as a rod-shaped decorative material holding member for the rod-shaped decorative material dispensing container 201 according to a first modified embodiment of the present invention, will be described. In the following modified embodiments, the same reference numerals are used for components similar to those in the previously described embodiment, and redundant explanations are omitted as appropriate.

[0072] Figure 6 is an enlarged view of the decorative material holding part 211 according to the first modified example, where (a) is a front view, (b) is a side view, and (c) is a cross-sectional view along the VIC-VIC line in Figure 6(b). Figure 7 is a cross-sectional view along the VII-VII line in Figure 6(a), showing the state before the rod-shaped decorative material A is inserted into the decorative material holding part 211. The tip cylinder 20 is also shown in Figure 7.

[0073] The decorative material holding portion 211 according to this first modified example differs from the embodiment described above in that the protrusion 213 is provided only in the portion of the claw piece 212 that is closer to the tip portion 212c than to the middle portion in the axial direction.

[0074] As shown in Figures 6(a) and (b), the core chuck member 210 has a decorative material holding portion 211 that holds the outer surface of the rod-shaped decorative material A, and a base portion 15 on which the decorative material holding portion 211 is erected.

[0075] The decorative material holding portion 211 is composed of a plurality of claw pieces 212, 112 that extend along the axial direction of the rod-shaped decorative material A and hold the outer circumferential surface of the rod-shaped decorative material A, and a base portion end face 15a formed on the base portion 15 as a bottom surface that holds the bottom of the rod-shaped decorative material A.

[0076] Of the four claw pieces 212, 112 that constitute the decorative material holding portion 211, a pair of first claw pieces 212 that are arranged to face each other across the central axis are provided with protrusions 213.

[0077] The protrusion 213 is formed to protrude from the circumferential end of the claw piece 212 along the outer surface of the rod-shaped decorative material A, similar to the protrusion 13 in the above embodiment. However, in the first modified example, the protrusion 213 is provided only in the portion of the claw piece 212 closer to the tip 212c than to the middle portion in the axial direction.

[0078] In the examples shown in Figures 6 and 7, the protrusion 213 is provided only on the tip portion 212c of the claw piece 212, and protrudes from the circumferential end of the tip portion 212c along the outer surface of the rod-shaped decorative material A.

[0079] As described above, when a rod-shaped decorative material A, whose outer diameter is slightly larger than the inner diameter of the decorative material holding portion 211, is loaded into the decorative material holding portion 211, the claw pieces 212, 112 are inclined such that their free ends, the tip portions 212c, 112c, are displaced radially outward from the base ends of the claw pieces 212, 112 that are connected to the base portion 15. Therefore, even if the projection 213 is provided only in the portion of the claw piece 212 closer to the tip portion 212c than the middle portion in the axial direction, as in the first modified example, the projection 213 abuts against the inner circumferential surface 22 of the through hole 20a formed as a restricting portion in the tip cylinder 20, thereby limiting the radially outward deformation of the claw piece 212, similar to the above embodiment.

[0080] In the first modified example shown in Figures 6 and 7, the projection 213 is provided only on the tip portions 212c of a pair of first claw pieces 212 that are arranged opposite each other across the central axis, while the projection 213 is not provided on another pair of second claw pieces 112 that are arranged opposite each other across the central axis. However, the projection 213 only needs to be provided on at least one of the multiple claw pieces 212, 112. For example, it may be provided only on the tip portion 212c of either one of the pair of first claw pieces 212, or it may be provided only on the tip portions 212c, 112c of all of the claw pieces 212, 112.

[0081] Furthermore, the claw piece 212 is provided with multiple exposed portions 12a and retaining portions 12b1, 12b2, similar to the embodiment described above. The exposed portions 12a and retaining portions 12b1, 12b2 may also be provided on the claw piece 112 that does not have a projection 213. Also, tapered surfaces 12e, 112e are formed on the tip portions 212c, 112c of each claw piece 212, 112, similar to the embodiment described above.

[0082] As a result, the same effects as those of the embodiment described above can be obtained in the rod-shaped cosmetic material dispensing container 201 according to the first modified example.

[0083] <Second variation> Next, with reference to Figure 8, the configuration of the decorative material holding portion 311 of the rod-shaped decorative material dispensing container 301 according to a second modified embodiment of the present invention will be described.

[0084] Figure 8 is a cross-sectional view of the decorative material holding part 311 according to the second modified example, and is a cross-sectional view showing the same cross-section as in Figure 7, showing the state before the rod-shaped decorative material A is inserted into the decorative material holding part 311.

[0085] The decorative material holding portion 311 in this second modified example differs from the embodiment described above in that the protrusion 313 formed projecting from the circumferential end of the claw piece 312 has an inclined surface 313a that slopes away from the circumferential end of the claw piece 312 as it moves radially inward. Furthermore, the tip cylinder 320 in this second modified example differs from the embodiment described above in that it has a stepped portion 322 formed in the guide groove 321 as a regulating portion against which the protrusion 313 abuts.

[0086] As shown in Figure 8, of the four claw pieces 312, 112 that constitute the decorative material holding portion 311, a pair of first claw pieces 312 that are arranged to face each other across the central axis are provided with a projection 313 having an inclined surface 313a.

[0087] The protrusion 313 is formed to protrude from the circumferential end of the claw piece 312, similar to the protrusion 13 in the above embodiment, but the protrusion 313 of the second modified example is provided only in the portion of the claw piece 312 closer to the tip than the middle portion in the axial direction. Furthermore, the protrusion 313 of the second modified example has an inclined surface 313a on the radially outer side that slopes away from the circumferential end of the claw piece 312 as it moves radially inward.

[0088] Furthermore, as shown in Figure 8, the tip cylinder 320 is provided with a stepped portion 322 and its corner portion 322a, which are formed by expanding the width of the guide groove 321 that accommodates the claw piece 312 on the radially inner side, and these are provided as regulating portions.

[0089] In this second modified example, when a rod-shaped decorative material A, whose outer diameter is slightly larger than the inner diameter of the decorative material holding portion 311, is loaded into the decorative material holding portion 311, the inclined surface 313a formed on the protrusion 313 abuts against the corner 322a of the stepped portion 322 formed as a restricting portion on the tip cylinder 320, thereby limiting the deformation of the claw piece 312 radially outward. Note that the protrusion 313 is provided with the intention of abutting against the stepped portion 322 and is not provided to hold the outer circumferential surface of the rod-shaped decorative material A; therefore, the radially inner surface of the protrusion 313 does not contact the outer circumferential surface of the rod-shaped decorative material A.

[0090] Furthermore, the extent to which deformation of the claw pieces 312 that occurs when the rod-shaped decorative material A is loaded into the decorative material holding part 311 is to be tolerated can be arbitrarily changed by changing the size of the radial gap between the corner portion 322a and the inclined surface 313a in the state before the claw pieces 312,112 hold the rod-shaped decorative material A. Specifically, this can be changed relatively easily by changing the inclination angle of the inclined surface 313a or by changing the position where the stepped portion 322 is formed in the radial direction, that is, the position where the corner portion 322a is provided in the radial direction.

[0091] Furthermore, in the second modified example, the projection 313 is provided only on a pair of first claw pieces 312, which are arranged to face each other across the central axis from the four claw pieces 312, 112. As a result, the cross-sectional shape of the guide groove 321 that accommodates the pair of first claw pieces 312 is different from the cross-sectional shape of the guide groove 21 that accommodates the other pair of second claw pieces 112. Consequently, the claw piece 312 having the projection 313 cannot be inserted into the guide groove 21 where the stepped portion 322 is not formed.

[0092] This prevents the claw pieces 312 and 112 from being inserted into the wrong guide grooves 321 and 21 when assembling the core chuck member, which is provided with a decorative material holding portion 311, to the tip cylinder 320.

[0093] In the second modified example shown in Figure 8, the projection 313 is provided only on a pair of first claw pieces 312 that are positioned opposite each other across the central axis, while the projection 313 is not provided on another pair of second claw pieces 112 that are positioned opposite each other across the central axis. However, the projection 313 only needs to be provided on at least one of the multiple claw pieces 312, 112. For example, it may be provided on only one of the pair of first claw pieces 312, or it may be provided on all of the multiple claw pieces 312, 112.

[0094] Furthermore, in the second modified example shown in Figure 8, the portion of the protrusion 313 that abuts against the stepped portion 322 and the corner portion 322a formed as a restricting portion is an inclined surface 313a. However, the portion that abuts against the stepped portion 322 may be a flat portion formed perpendicular to the direction in which the claw piece 312 is inclined (radial direction). In this case, the deformation of the claw piece 312 radially outward is limited by the flat portion formed on the protrusion 313 abutting against the flat portion constituting the stepped portion 322.

[0095] Furthermore, the claw piece 312 is provided with multiple exposed portions 12a and retaining portions 12b1, 12b2, similar to the embodiment described above. The exposed portions 12a and retaining portions 12b1, 12b2 may also be provided on the claw piece 112 that does not have a projection 313. Also, tapered surfaces 12e, 112e are formed on the tip portions 12c, 112c of each claw piece 312, 112, similar to the embodiment described above.

[0096] Furthermore, the protrusions 313 may be provided in multiple locations at intervals along the axial direction, similar to the protrusions 13 in the above embodiment.

[0097] As a result, the same effects as those of the above-described embodiment can be obtained in the rod-shaped cosmetic material dispensing container 301 according to the second modified example.

[0098] <Third variation> Next, with reference to Figure 9, the configuration of the decorative material holding portion 411 of the rod-shaped decorative material dispensing container 401 according to a third modified embodiment of the present invention will be described.

[0099] Figure 9 is a cross-sectional view of the decorative material holding part 411 according to the third modified example, and is a cross-sectional view showing the same cross-section as in Figure 7, showing the state before the rod-shaped decorative material A is inserted into the decorative material holding part 411.

[0100] The decorative material holding portion 411 in this third modified example differs from the embodiment described above in that the width of the pair of second claw pieces 512, which do not have the protrusion 413, is smaller than the width (width in the direction perpendicular to the radial direction) of the pair of first claw pieces 412, which have the protrusion 413. Furthermore, the tip barrel 420 in this third modified example differs from the embodiment described above in that the width of the guide groove 521, which accommodates the second claw piece 512, is smaller than the width (width in the direction perpendicular to the radial direction) of the guide groove 421, which accommodates the first claw piece 412, and has a stepped portion 422 formed in the guide groove 421 as a restricting portion against which the protrusion 413 abuts. In addition, the protrusion 413 in this third modified example differs from the embodiment described above in that its radial thickness is greater than the radial thickness of the protrusion 13 in the embodiment described above.

[0101] As shown in Figure 9, of the four claw pieces 412, 512 that constitute the decorative material holding portion 411, a pair of first claw pieces 412 that are arranged facing each other across the central axis have protrusions 413 formed to project from the circumferential ends of the claw pieces 412 along the outer surface of the rod-shaped decorative material A, and these protrusions are provided only in the portion of the claw piece 412 that is closer to the tip than to the middle portion in the axial direction.

[0102] Furthermore, as shown in Figure 9, the tip cylinder 420 is provided with a stepped portion 422 formed by expanding the width of the guide groove 421 that accommodates the claw piece 412 on the radially inner side, which acts as a restricting portion against which the protrusion 413 abuts when the claw piece 412 deforms radially outward.

[0103] The inner circumferential surface of the stepped portion 422, which the protrusion 413 abuts, is formed in a curved shape so as to constitute a part of an arc centered on the central axis, and is located radially outward from the inner circumferential surface 22 of the through hole 20a. For this reason, the radial thickness of the protrusion 413 is formed to be thicker than the radial thickness of the protrusion 13 in the above embodiment.

[0104] Specifically, the radial thickness of the protrusion 413 is formed to be, for example, about 0.1 mm. However, the radial thickness of the protrusion 413 is not limited to this and can be set to any size within a relatively wide range, for example, between about 0.05 and 0.50 mm. Furthermore, the length of the circumferential protrusion 413 is set to extend beyond the circumferential end of the guide groove 421 (for example, about 0.08 to 0.12 mm), similar to the protrusion 13 in the above embodiment, and is formed to extend so that at least a portion of the protrusion 413 is located between the outer circumferential surface of the rod-shaped decorative material A and the stepped portion 422 which functions as a restricting portion.

[0105] In this third modified example, when a rod-shaped decorative material A, whose outer diameter is slightly larger than the inner diameter of the decorative material holding portion 411, is loaded into the decorative material holding portion 411, the protrusion 413 abuts against the stepped portion 422 formed as a restricting portion on the tip cylinder 420, thereby limiting the deformation of the claw piece 412 radially outward. Although the protrusion 413 is formed along the outer circumferential surface of the rod-shaped decorative material A, as described above, it is provided with the intention of abutting against the inner circumferential surface of the stepped portion 422, and not for holding the outer circumferential surface of the rod-shaped decorative material A. Therefore, it is not necessary for the radially inner surface of the protrusion 413 to be in contact with the outer circumferential surface of the rod-shaped decorative material A.

[0106] Furthermore, since the position of the inner circumferential surface of the stepped portion 422 and the radial thickness of the protrusion 413 can be arbitrarily changed, the extent to which deformation of the claw piece 412 that occurs when the rod-shaped decorative material A is loaded into the decorative material holding portion 411 can be tolerated can be changed relatively easily by changing the position of the inner circumferential surface of the stepped portion 422 and the radial thickness of the protrusion 413.

[0107] Furthermore, in this third modified example, the width of the guide groove 521 that accommodates the second claw piece 512 is set smaller to prevent the rod-shaped decorative material A from becoming unstable in its movement due to the narrowing of the area where the inner circumferential surface 22 of the through hole 20a is formed by the formation of the stepped portion 422, which makes it difficult to constantly support the rod-shaped decorative material A with the inner circumferential surface 22.

[0108] Specifically, the width of the guide groove 521 (width in the direction perpendicular to the radial direction) in which the second claw piece 512 is housed is set to, for example, less than half the diameter of the through hole 20a, and accordingly, the width of the second claw piece 512 housed in the guide groove 521 is made smaller than the width of the pair of first claw pieces 412 on which the protrusions 413 are provided.

[0109] By reducing the width of the guide groove 521 in this way, it becomes possible to secure the area in which the inner circumferential surface 22 of the through hole 20a is formed, and the outer surface of the rod-shaped decorative material A can be constantly supported along the axial direction by multiple inner circumferential surfaces 22 between adjacent claw pieces 412, 512, thereby stabilizing the forward and backward movement of the rod-shaped decorative material A. As a result, even if the rod-shaped decorative material A is extremely thin and soft and prone to breakage due to a long extension stroke, it is possible to prevent core breakage due to the inclination of the rod-shaped decorative material A from the retraction limit to the advancement limit.

[0110] Furthermore, in the third modified example, the width of the guide groove 421 that accommodates a pair of first claw pieces 412 is set to be larger than the width of the guide groove 521 that accommodates another pair of second claw pieces 512. Accordingly, the width of the first claw pieces 412 is also set to be larger than the width of the second claw pieces 512. As a result, it is impossible to insert a claw piece 512 having a protrusion 413 into a guide groove 521 that accommodates a claw piece 512 without a protrusion 413.

[0111] This prevents the claw pieces 412 and 512 from being inserted into the wrong guide grooves 421 and 521 when assembling the core chuck member, which is provided with a decorative material holding portion 411, to the tip cylinder 420.

[0112] In the third modified example shown in Figure 9, the protrusion 413 is provided only on a pair of first claw pieces 412 that are positioned opposite each other across the central axis, while the other pair of second claw pieces 512 that are positioned opposite each other across the central axis do not have the protrusion 413. However, the protrusion 413 only needs to be provided on at least one of the multiple claw pieces 412, 512. For example, it may be provided on only one of the pair of first claw pieces 412, or it may be provided on all of the multiple claw pieces 412, 512.

[0113] Furthermore, the claw piece 412 is provided with multiple exposed portions 12a and retaining portions 12b1, 12b2, similar to the embodiment described above. The exposed portions 12a and retaining portions 12b1, 12b2 may also be provided on the claw piece 512 that does not have the projection 413. In addition, tapered surfaces 12e, 112e are formed on the tip portions 12c, 112c of each claw piece 412, 512, similar to the embodiment described above.

[0114] Furthermore, the protrusions 413 may be provided in multiple locations at intervals along the axial direction, similar to the protrusions 13 in the above embodiment.

[0115] As a result, the same effects as those of the above-described embodiment can be obtained in the rod-shaped cosmetic material dispensing container 401 according to the third modified example.

[0116] In the embodiments and modifications described above, the cross-sectional shape of the rod-shaped decorative material A is circular, but the cross-sectional shape of the rod-shaped decorative material A is not limited to this and may be elliptical, oblong, triangular, or polygonal. Also, the inner circumferential surfaces of each claw piece 12, 112, 212, 312, 412, 512 are formed in a curved shape to match the outer circumferential surface of the rod-shaped decorative material A, but if the cross-sectional shape of the rod-shaped decorative material A is, for example, triangular and the outer circumferential surface is flat, then the inner circumferential surfaces of each claw piece 12, 112, 212, 312, 412, 512 are formed in a flat shape.

[0117] Furthermore, in the embodiments and modifications described above, the protrusions 13,213,313,413 are formed to protrude from both ends of the claw pieces 12,212,312,412 in the circumferential direction. The protrusions 13,213,313,413 are not limited to being formed to protrude from both ends of the claw pieces 12,212,312,412, but may also be formed to protrude from only one of the circumferential ends of the claw pieces 12,212,312,412.

[0118] Furthermore, in the embodiments and their respective modifications described above, the number of claw pieces 12, 112, 212, 312, 412, and 512 is 4, but the number of claw pieces 12, 112, 212, 312, 412, and 512 is not limited to this; there may be any number of two or more, and it may also be an odd number such as 3 or 5. Also, in the embodiments and their respective modifications described above, the claw pieces 12, 112, 212, 312, 412, and 512 are arranged at equal intervals in the circumferential direction, but the spacing between the claw pieces 12, 112, 212, 312, 412, and 512 does not have to be uniform.

[0119] According to the above embodiments, the following effects are achieved.

[0120] The dispensing container 1 has a core chuck member 10, 210 (rod-shaped decorative material holding member) having a plurality of claw pieces 12, 112, 212, 312, 412, 512 that extend along the axial direction of the rod-shaped decorative material A and hold the outer surface of the rod-shaped decorative material A, and a base portion 15 on which the plurality of claw pieces 12, 112, 212, 312, 412, 512 are erected, and a front cylinder 20, 320, 420 having a through hole 20a formed to penetrate in the axial direction and through which the rod-shaped decorative material A can move back and forth, and guide grooves 21, 321, 421, 521 formed along the through hole 20a and guiding the claw pieces 12, 112, 212, 312, 412, 512 along the axial direction, and a base cylinder 30 assembled to the front cylinder 20, 320, 420 and The device includes a feeding mechanism that, by relative rotation with the base cylinder 30, advances and retracts the rod-shaped decorative material A held by the core chuck members 10, 210 through the tip opening 20b of the through hole 20a of the tip cylinders 20, 320, 420. At least one of the multiple claw pieces 12, 112, 212, 312, 412, 512 is provided with a projection 13, 213, 313, 413 that protrudes from the circumferential end of the claw piece 12, 212, 312, 412. The radial outward deformation of the claw piece 12, 212, 312, 412 provided with the projection 13, 213, 313, 413 is limited by the projection 13, 213, 313, 413 contacting the inner circumferential surface 22 or stepped portion 322, 422 formed as a restricting portion on the tip cylinders 20, 320, 420.

[0121] Furthermore, the restricting portion is the inner circumferential surface 22 of the through hole 20a, and at least a portion of the protrusions 13,213 is located between the outer circumferential surface of the rod-shaped decorative material A and the inner circumferential surface 22 of the through hole 20a, and the radial outward deformation of the claw pieces 12,212 on which the protrusions 13,213 are provided is limited by the protrusions 13,213 contacting the inner circumferential surface 22 of the through hole 20a.

[0122] Furthermore, the restricting portion is the stepped portion 322, 422 formed in the guide grooves 321, 421, and at least a part of the protrusions 313, 413 is located between the outer circumferential surface of the rod-shaped decorative material A and the stepped portion 322, 422, and the radial outward deformation of the claw pieces 312, 412 on which the protrusions 313, 413 are provided is limited by the protrusions 313, 413 contacting the stepped portion 322, 422.

[0123] According to these embodiments, the protrusions 13,213,313,413 formed projecting from the circumferential ends of the claw pieces 12,212,312,412 abut against the inner circumferential surface 22 and stepped portions 322,422 formed as restricting portions on the tip cylinders 20,320,420, thereby restricting the radial outward deformation of the claw pieces 12,212,312,412 on which the protrusions 13,213,313,413 are provided. By restricting the deformation of the claw pieces 12,212,312,412 in this way, an area is secured for the claw pieces 12,212,312,412 to hold the rod-shaped decorative material A, thereby suppressing the occurrence of core loss, where the rod-shaped decorative material A comes out of the decorative material holding portion 11,211,311,411. Furthermore, by allowing a certain degree of deformation of the claw pieces 12, 212, 312, and 412, it is possible to avoid excessive holding force from the claw pieces 12, 212, 312, and 412 acting on the rod-shaped decorative material A, thereby suppressing the occurrence of core breakage, which can cause the rod-shaped decorative material A to break.

[0124] Furthermore, the protrusion 313 has an inclined surface 313a that slopes away from the circumferential end of the claw piece 312 as it extends radially inward, and the radial outward deformation of the claw piece 312 on which the protrusion 313 is provided is limited by the inclined surface 313a contacting the corner 322a of the stepped portion 322.

[0125] According to this embodiment, the extent to which deformation of the claw piece 312 that occurs when the rod-shaped decorative material A is loaded into the decorative material holding part 211 can be tolerated can be changed relatively easily by changing the inclination angle of the inclined surface 313a and changing the position where the corner portion 322a is provided. Therefore, by changing the inclination angle of the inclined surface 313a and the position where the corner portion 322a is provided, the occurrence of core slippage and core breakage can be efficiently suppressed.

[0126] Furthermore, the protrusions 213, 313, and 413 are provided only in the portion of the claw pieces 212, 312, and 412 that is closer to the tip portion 212c than to the middle portion in the axial direction.

[0127] According to this embodiment, since the protrusions 213, 313, and 413 are provided only on the portion of the claw pieces 212, 312, and 412 closer to the tip portion 212c, even when the protrusions 213, 313, and 413 are provided on the claw piece 212 to restrict radial outward deformation of the claw piece 212, 312, and 412, the molding of the decorative material holding portion 211, 311, and 411 becomes easier compared to when multiple protrusions are provided in the axial direction.

[0128] Furthermore, multiple protrusions 13, 313, and 413 are provided at intervals along the axial direction.

[0129] According to this embodiment, since multiple protrusions 13,313,413 are provided along the axial direction, radial outward deformation of the claw pieces 12,312,412 on which the protrusions 13,313,413 are provided is reliably restricted by the multiple protrusions 13,313,413 contacting the restricting portions formed on the tip barrels 20,320,420, thereby enhancing the effect of suppressing core slippage.

[0130] Furthermore, the claw pieces 12, 112, 212, 312, 412, and 512 are provided with exposed portions 12a that partially expose the outer surface of the rod-shaped decorative material A held by the claw pieces 12, 112, 212, 312, 412, and 512.

[0131] According to this embodiment, the rigidity of the claw pieces 12, 112, 212, 312, 412, and 512 is reduced by the provision of the exposed portion 12a, making the claw pieces 12, 112, 212, 312, 412, and 512 more easily deformed. Therefore, even if the rod-shaped decorative material A is a molded core made of soft and extremely thin material, the claw pieces 12, 112, 212, 312, 412, and 512 can gently and loosely hold the outer surface of the rod-shaped decorative material A by wrapping around it, and as a result, the occurrence of core breakage, which causes the rod-shaped decorative material A to break, can be suppressed.

[0132] Furthermore, the claw pieces 12, 112, 212, 312, 412, and 512 are provided with retaining portions 12b1 and 12b2 that are formed facing the exposed portion 12a and engage with the rod-shaped decorative material A in the axial direction.

[0133] Furthermore, multiple exposed portions 12a are provided along the axial direction, and multiple retaining portions 12b1 and 12b2 are provided so as to face each of the multiple exposed portions 12a.

[0134] Furthermore, the exposed portion 12a is a notch formed by cutting out the circumferential ends of the claw pieces 12, 112, 212, 312, 412, and 512, and the retaining portions 12b1 and 12b2 are edge portions formed between the exposed portion 12a and the radially inner surfaces of the claw pieces 12, 112, 212, 312, 412, and 512.

[0135] According to these embodiments, since retaining portions 12b1 and 12b2 that engage with the rod-shaped decorative material A in the axial direction are provided on each exposed portion 12a, even if the rod-shaped decorative material A is about to move forward in the axial direction due to impact or the like, the outer circumference of the rod-shaped decorative material A will catch on the retaining portions 12b1 and 12b2, thereby preventing the rod-shaped decorative material A from coming out of the decorative material holding portions 11, 211, 311, and 411.

[0136] Although embodiments of the present invention have been described above, these embodiments only represent a part of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments. [Explanation of Symbols]

[0137] 1,201,301,401... Rod-shaped decorative material dispensing container (dispensing container) 10,210...Core chuck component (rod-shaped decorative material holding component) 11,211,311,411... Decorative material holding section 12,212,312,412...First nail segment (nail segment) 12a...Exposed part 12b1...Removal prevention part (engaging part) 12b2... Retaining part (engaging part) 12c,212c...Tip 12d...Curved part 12e... Tapered surface 13,213,313,413...projection 15. Base section 15a... Base end face 20,320,420...Nozzle 20a...Through hole 21,321,421,512... Guide grooves 22. Inner surface (regulating section) 30...Base tube 40...Female threaded tube 50... Coil spring 112,512...Second nail fragment (nail fragment) 313a...Slope surface 322,422... Stepped section (regulating section) 322a... Corner (regulatory part) A... Rod-shaped decorative material

Claims

1. A dispenser for rod-shaped cosmetic material, A rod-shaped decorative material holding member having a plurality of claw pieces extending along the axial direction of the rod-shaped decorative material and holding the outer surface of the rod-shaped decorative material, and a base portion on which the plurality of claw pieces are erected, A tip section having a through hole formed axially through which the rod-shaped decorative material can move back and forth, and a guide groove formed along the through hole for guiding the claw piece axially, A base cylinder is assembled to the aforementioned front cylinder so as to be rotatable relative to it, The system includes a feeding mechanism that, by relative rotation between the tip cylinder and the base cylinder, moves the rod-shaped decorative material, held by the rod-shaped decorative material holding member, forward and backward from the tip opening of the through hole in the tip cylinder, At least one of the plurality of claw pieces is provided with a projection that extends from the circumferential end of the claw piece. The radial outward deformation of the claw piece on which the protrusion is provided is limited by the protrusion contacting the restricting portion formed on the tip section. A dispensing container for rod-shaped cosmetic material, characterized by the features described above.

2. The restricting portion is the inner circumferential surface of the through hole, At least a portion of the aforementioned protrusion is located between the outer circumferential surface of the rod-shaped decorative material and the inner circumferential surface of the through hole, The radial outward deformation of the claw piece on which the protrusion is provided is limited by the protrusion contacting the inner circumferential surface of the through hole. The rod-shaped cosmetic material dispensing container according to feature 1.

3. The regulating portion is a stepped portion formed in the guide groove, At least a portion of the aforementioned protrusion is located between the outer surface of the rod-shaped decorative material and the stepped portion, The radial outward deformation of the claw piece on which the protrusion is provided is limited by the protrusion contacting the stepped portion. The rod-shaped cosmetic material dispensing container according to feature 1.

4. The aforementioned ridge has an inclined surface that slopes away from the circumferential end of the claw piece as it extends radially inward, The radial outward deformation of the claw piece on which the protrusion is provided is limited by the inclined surface contacting the corner of the stepped portion. The rod-shaped cosmetic material dispensing container according to feature 3.

5. The aforementioned protrusion is provided only in the portion of the claw piece closer to the tip than to the middle portion in the axial direction. The rod-shaped cosmetic material dispensing container according to feature 1.

6. Multiple protrusions are provided at intervals along the axial direction. The rod-shaped cosmetic material dispensing container according to feature 1.

7. The claw piece is provided with an exposed portion that partially exposes the outer surface of the rod-shaped decorative material held by the claw piece. A rod-shaped cosmetic material dispensing container according to any one of claims 1 to 6.

8. The aforementioned claw piece is provided with an engaging portion formed facing the exposed portion and engaging with the rod-shaped decorative material in the axial direction. The rod-shaped cosmetic material dispensing container according to feature 7.

9. Multiple exposed portions are provided along the axial direction. Multiple engaging portions are provided so as to face each of the multiple exposed portions. The rod-shaped cosmetic material dispensing container according to feature 8.

10. The exposed portion is a notch formed by cutting out the circumferential end of the claw piece. The engaging portion is an edge portion formed between the notch and the radially inner surface of the claw piece. The rod-shaped cosmetic material dispensing container according to feature 8.

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