JP2008055025A - Bar-shaped cosmetic feeding container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bar-shaped cosmetic feeding container which properly holds a clearance of a bar-shaped cosmetic and a front tube without forming a level difference in the bar-shaped cosmetic. <P>SOLUTION: In the feeding container 1 for the bar-shaped cosmetic which moves a holder 48 holding the base end of the bar-shaped cosmetic A under a plurality of steps of a feed mechanism, the holder 48 is formed in an approximately cylindrical configuration with a thin film. The holder 48 has an opening capable of elastically deforming, which receives the bar-shaped cosmetic, and is formed so that the transverse section of the opening in an independence state is unsimilar to that of the bar-shaped cosmetic. The front tube 10 is included, which accommodates the holder 48 and corrects the section of the opening of the holder 49 to a configuration so that the bar-shaped cosmetic A can be inserted in the holder 48. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a feeding container for stick-shaped cosmetic materials such as lipstick and solid blusher.

  Patent Documents 1 to 3 propose a multiple-stage payout mechanism for a stick-shaped cosmetic material payout container that is long in the axial direction, such as lipstick.

  Taking Patent Document 1 as an example, a substantially cylindrical holder that holds the base portion of the bar-shaped decorative material is housed inside the front tube together with the bar-shaped decorative material, and the inside of the front tube is fitted by different diameter fitting with the front tube. It is configured to be displaceable only in the axial direction. A rod shaft protruding downward from the front tube is fixed to the holder. The core chuck includes a plurality of outward projections. The rod shaft is accommodated in a first cylindrical member having a spiral groove that guides these protrusions, and the holder is displaced in the axial direction in accordance with relative rotation between the first cylindrical member and the front tube. The first cylinder member is further screwed onto the inner periphery of the second cylinder member.

  When the leading cylinder and the second cylinder member are rotated relative to each other, the first cylinder member and the second cylinder member are rotated relative to each other, and the first cylinder member is sent out in a direction protruding from the second cylinder member. The holder also moves in the tip tube in the distal direction along with the first tube member. When the delivery of the first tubular member reaches the limit, a stopper formed at the proximal end of the first tubular member restricts further relative displacement between the first tubular member and the second tubular member.

  From this state, when the leading tube and the second tube member are further rotated relative to each other, the core chuck is screw-fed by the relative rotation with the first tube member, and the holder is further displaced in the tip direction within the leading tube. When the screw feed of the core chuck reaches the limit, a stopper formed at the base end of the core chuck restricts further relative displacement between the core chuck and the first cylindrical member.

  When the holder moves in the tip direction in the tip tube, the stick-shaped decorative material held by the holder is sent out from the tip of the tip tube to the outside.

  Thus, the stroke distance of a stick-shaped decorative material can be increased by providing a multi-stage feeding mechanism. Therefore, the full length of the container can be kept short with respect to the length of the stick-shaped decorative material.

The basic structure of the feeding containers described in Patent Document 2 and Patent Document 3 is the same.
Japanese Patent No. 2736039 Japanese Utility Model Publication No. 4-33069 Japanese Patent No. 3725205

  In each of the prior arts described above, the holder has a high rigidity so as not to be deformed in a self-supporting state. Further, when the holder is displaced in the axial direction inside the front tube, the outer diameter of the holder is set in advance so that the outer periphery of the holder does not contact the inner peripheral surface of the front tube. This is because when the high-rigidity holder comes into contact with the inner peripheral surface of the front tube, the resistance of the stick-shaped decorative material to payout and retraction increases, and it becomes difficult to smoothly advance and retract the decorative material. Further, when the holder and the tip tube come into contact with each other, there is a possibility that the decorative material may be tilted or contacted with the inner peripheral surface of the tip tube and damaged.

  In order to make the holder highly rigid, the wall thickness of the holder must be increased. Therefore, in order to properly maintain the clearance between the stick-shaped decorative material and the tip tube, it is necessary to form a step in the stick-shaped decorative material.

  A bar-shaped decorative material provided with a step has a problem that it is easily broken at the step. This is a serious problem in the long stick-shaped decorative material and the small-sized stick-shaped decorative material that require the multi-stage feeding mechanism of the prior art.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make it possible to appropriately set the clearance between the stick-shaped decorative material and the tip tube without forming a step in the stick-shaped decorative material in the container of the stick-shaped decorative material having a multi-stage feeding structure. It is to be.

  In order to achieve the above object, the present invention relates to a bar-shaped cosmetic material feeding container in which a holder for holding the base end of a bar-shaped cosmetic material is advanced and retracted inside a cylindrical tip tube under a multi-stage feeding mechanism. The holder is formed in a substantially cylindrical shape with a thin film so that it has an elastically deformable opening for receiving the bar-shaped decorative material, and the cross section of the opening in a self-supporting state is not similar to the cross-section of the bar-shaped decorative material In addition, the cross section of the inner periphery of the front tube is formed in a shape that corrects the cross section of the opening of the holder so that the stick-shaped decorative material can be inserted into the holder.

  By holding the base end of the stick-shaped decorative material with the holder made of a thin film, the clearance between the stick-shaped decorative material and the inner peripheral surface of the tip tube can be properly maintained without forming a step in the stick-shaped decorative material. Since the front tube corrects the cross section of the opening of the holder, the holder is kept in contact with the inner peripheral surface of the front tube, and a preferable operation is performed while the stick-shaped decorative material is not shaken when the stick-shaped decorative material is fed or retracted. A feeling can be obtained. Therefore, a particularly favorable effect can be obtained with respect to holding and advancing / retracting operation of the long stick-shaped decorative material or the small stick-shaped decorative material.

  Referring to FIG. 1, a stick-shaped cosmetic material feeding container 1 according to the present invention includes a front tube 10 and a main body 2. The front tube 10 causes the stick-shaped decorative material A to protrude from the tip in accordance with a relative rotation operation with the main body 2, or retracts the stick-shaped decorative material A into the front tube 10.

  A cap 3 shown in FIG. 2 (A) is detachably attached to the main body 2 of the stick-shaped decorative material feeding container 1 and covers the front tube 10. An annular groove 3 a is formed on the inner periphery of the lower end of the cap 3.

  Referring again to FIG. 1, the main body 2 includes an inner cylinder 20, an outer cylinder 30, a core chuck 40, and a relay spiral cylinder 50.

  Referring to FIGS. 2B and 2C, the outer peripheral portion of the front tube 10 includes a cylindrical knob portion 17 and a coupling portion 16 integrally formed at the lower end thereof. The knob portion 17 is a portion that is held with a fingertip and rotated relative to the outer cylinder 30 when operating the stick-shaped decorative material feeding container 1.

  The diameter of the outer peripheral surface of the knob portion 17 is tapered toward the tip.

  The outer peripheral surface of the coupling portion 16 is formed with a smaller diameter than the outer peripheral surface of the proximal end of the knob portion 17. Therefore, the outer peripheral surface of the coupling portion 16 is coupled to the outer peripheral surface of the knob portion 17 with a certain level difference. A projection 10 a is provided on the outer periphery of the coupling portion 16 slightly below the step.

  An O-ring groove 15 is formed on the outer peripheral surface of the coupling portion 16 below the protruding portion 10a. An O-ring is accommodated in the O-ring groove 15. An annular protrusion 10 b is formed on the outer peripheral surface at the lower end of the coupling portion 16.

  The front tube 10 includes an axial through hole 13. The front tube 10 includes an inclined opening 11 communicating with the through hole 13 at the upper end. The other end of the through hole 13 opens downward at the lower end of the front tube 10. As shown in FIG. 2C, the cross-section of the through-hole 13 has a circular basic shape, but includes a plurality of sliding grooves 12 formed at equal angular intervals. As shown in FIG. 2B, the sliding groove 12 is formed over almost the entire length of the front tube 10.

  Referring to FIG. 3C, an upper end cavity portion 27 having a uniform circular cross section that opens upward is formed in the upper portion of the inner cylinder 20. The coupling portion 16 of the front tube 10 is inserted into the upper end cavity portion 27. An annular fitting groove 21 is formed on the inner periphery of the upper end cavity portion 27, and the annular protrusion 10 b at the base end of the coupling portion 16 is engaged with the fitting groove 21, so that the leading tube 10 is connected to the inner tube 20. Are coupled in a relatively rotatable state.

  The inner cylinder 20 includes an internal thread portion 26 below the upper end cavity portion 27. The female thread portion 26 is formed to have a smaller diameter than the upper end cavity portion 27, and a spiral groove is formed on the inner periphery thereof. Further, the upper end cavity portion 27 and the female screw portion 26 communicate with each other via an inner protrusion step portion 23 that is an inwardly-shaped annular protrusion. A downward stepped portion 23 a is formed on the inner protruding stepped portion 23. The lower end of the female screw part 26 opens downward.

  A flange 22 is formed on the outer periphery of the upper portion of the inner cylinder 20. A protrusion 24 a that fits into the fitting groove 3 a of the cap 3 is formed above the flange 22, and an annular protrusion 24 b is formed below the flange 22. A plurality of vertical ribs 25 formed at equal angular intervals extending in the axial direction are formed on the outer peripheral surface corresponding to the internal thread portion 26 at the lower portion of the inner cylinder 20.

  Referring to FIG. 3D, the outer cylinder 30 is a cylindrical member having a bottom surface 33 at the lower end, and an annular fitting groove 31 is formed on the inner peripheral surface of the upper end. Further, knurls 32 are formed in the axial direction at equal angular intervals on the inner peripheral surface of the lower portion of the outer cylinder 30.

  The inner cylinder 20 is inserted into the outer cylinder 30 from the opening at the upper end. At this time, the vertical rib 25 is fitted to the knurled 32 and the protrusion 24 b is fitted to the fitting groove 31. As a result, in the rod-shaped decorative material feeding container 1 in the assembled state, the inner cylinder 20 is displaced integrally with the outer cylinder 30 in the axial direction and the rotation direction.

  Referring to FIG. 3A, the core chuck 40 includes a hollow rod shaft 44 and a holder 48 fixed to the upper end of the rod shaft 44. The core chuck 40 including the holder 48 and the rod shaft 44 is integrally formed by injection molding of a thermoplastic material.

  Many protrusions 45 are formed on the outer periphery of the rod shaft 44. The protrusions 45 are formed at equal intervals along the spiral path. A pair of convex pieces 47 projecting outward is formed at the lower end of the rod shaft 44. The convex piece 47 includes an upper end surface 47a made of a horizontal plane. The convex piece 47 is provided with a slope that gradually reduces the protruding height downward from the upper end surface 47a. The convex piece 47 is elastically buried in the rod shaft 44 according to the inward force applied to the inclined surface.

  The structure of the convex piece 47 for enabling such an operation is that a slit 46 as shown in FIGS. 1 and 4 is formed in which the convex piece 47 can be embedded in the wall surface of the rod shaft 44 around the convex piece 47. It will be realized. The convex piece 47 is coupled to the rod shaft 44 only at the lower end, and the upper end surface 47 a and both side surfaces of the convex piece 47 are separated from the wall surface of the rod shaft 44 by the slit 46.

  The holder 48 is a cylindrical member having an upper end opened, and the base end of the rod-shaped decorative material A shown in FIG. Here, the shape of the cross section of the rod-shaped decorative material A is circular.

  Referring to FIG. 3B, the holder 48 includes a thin film portion 48a having a substantially circular cross section and a plurality of axial protrusions 48b formed on the outer periphery thereof. The band-like protrusion 48b is formed in a shape and size that fits into the sliding groove 12 inside the front tube 10 shown in FIGS. 2 (B) and 2 (C).

  The core chuck 40 is accommodated inside the relay spiral cylinder 50.

  Referring to FIG. 3A again, the relay spiral cylinder 50 is a substantially cylindrical member, and includes an internal thread portion 51 on the inner periphery of the upper end. An intermediate portion 52 having an inner diameter larger than that of the female screw portion 51 continues below the female screw portion 51, and a large diameter portion 53 is formed below the intermediate portion 52.

  The female screw part 51 has an upward opening. The female thread portion 51 engages with the protrusion 45 of the rod shaft 44 of the core chuck 40 and has a role of guiding the protrusion 45 along a spiral movement path.

  The inner peripheral surfaces of the female screw portion 53 and the intermediate portion 52 are connected via a downward stepped portion 51a.

  The large-diameter portion 53 is coupled to the intermediate portion 52 through an upper end surface 53a that is an annular flat surface. A male screw 54 projects in a spiral manner on the outer periphery of the large-diameter portion 53. The large-diameter portion 53 has a downward opening at the lower end 53b.

  The stick-shaped decorative material feeding container 1 configured as described above is assembled by the following procedure.

  First, the rod shaft 44 of the core chuck 40 is inserted into the relay spiral cylinder 50 through the opening of the female screw portion 51. At this time, the inclined surface of the convex piece 47 abuts on the female screw portion 51, whereby the convex piece 47 is elastically deformed and buried in the rod shaft 44, and the rod shaft 44 can enter the relay spiral cylinder 50. The convex piece 47 that has passed through the female screw portion 51 protrudes outward again and returns to the initial state. Thereafter, due to the interference between the upper end surface 47 a of the convex piece 47 and the downward stepped portion 51 a of the relay spiral cylinder 50, the rod shaft 44 is prevented from being pulled out from the relay spiral cylinder 50.

  On the other hand, the coupling portion 16 of the front tube 10 is inserted into the inner tube 20 through the opening of the upper end cavity portion 27 of the inner tube 20. By strongly pushing the coupling part 16 into the upper end cavity part 27, the protrusion 10 a on the outer periphery of the coupling part 16 is fitted into the annular fitting groove 21 of the upper end cavity part 27, and the leading cylinder 10 is integrated with the inner cylinder 20. Is done.

  Next, the core chuck 40 and the relay spiral cylinder 50 are caused to enter the inner cylinder 20 from the lower end opening of the inner cylinder 20 with the holder 48 facing upward. During operation, the rotation angle of the rod shaft 44 and the relay spiral cylinder 50 is adjusted so that the band-like protrusion 48b of the holder 48 reaching the inner side of the front cylinder 10 fits into the sliding groove 12 inside the front cylinder 10. . After the belt-like protrusion 48 b is fitted in the sliding groove 12, the relay spiral cylinder 50 is further inserted into the inner cylinder 20, and finally the male screw 54 on the outer periphery of the large diameter portion 53 of the relay spiral cylinder 50 is connected to the female thread portion of the inner cylinder 20. 26 to be screwed.

  After assembling the front cylinder 10, the core chuck 40, the relay spiral cylinder 50, and the inner cylinder 20 in this way, the lower end of the inner cylinder 20 enters the inner side of the outer cylinder 30 from the upper end opening of the outer cylinder 30. Let While adjusting the relative rotation angle of the inner cylinder 20 and the outer cylinder 30 so that the vertical ribs 25 formed on the outer periphery of the lower part of the inner cylinder 20 engage with the knurls 32 on the inner peripheral surface of the lower part of the outer cylinder 30, The cylinder 20 is pushed into the outer cylinder 30. The vertical rib 25 is engaged with the knurl 32, and the annular protrusion 24b located below the flange 22 is fitted into an annular fitting groove 31 formed on the inner peripheral surface of the upper end of the outer cylinder 30. The inner cylinder 20 is integrated with the outer cylinder 30.

  Thus, the assembly of the front tube 10 and the main body 2 is completed.

  In this state, the rod-shaped decorative material A is inserted into the through hole 13 on the inner side of the front tube 10 from the tip opening of the front tube 10. Further, by inserting the base end of the bar-shaped decorative material A into the cavity 41 of the holder 48, the incorporation of the bar-shaped decorative material A into the bar-shaped decorative material feeding container 1 is completed. After the assembly of the rod-shaped decorative material A is completed, the cap 3 is attached to the top tube 10 and the upper end portion of the inner tube 20. By fitting the protrusion 24 a on the outer periphery of the upper end portion of the inner cylinder 20 into the annular groove 3 a formed on the inner periphery of the lower end of the cap 3, the cap 3 is held in the mounted state.

  FIG. 1 shows a state when the incorporation of the stick-shaped decorative material A into the stick-shaped decorative material feeding container 1 is completed. Here, the core chuck 40 penetrates deeply into the relay spiral cylinder 50, and the intermediate spiral cylinder 50 penetrates deeply into the inner cylinder 20.

  When the outer cylinder 30 and the front cylinder 10 are rotated relative to each other from this state, first, the male screw 54 on the outer periphery of the large-diameter portion 53 of the relay spiral cylinder 50 is guided to the female screw portion 26 on the inner periphery of the inner cylinder 20 and spirally formed. The inner cylinder 20 and the relay spiral cylinder 50 are relatively displaced, and the relay spiral cylinder 50 is sent out above the inner cylinder 20. The relay spiral cylinder 50 drives the holder 48 upward via the rod shaft 44, and the rod-shaped decorative material A supported by the holder 48 is sent upward from the opening 11 of the tip cylinder 10. When the upper end surface 53a of the large-diameter portion 53 comes into contact with the downward stepped portion 23a, the relative rotation of the relay spiral cylinder 50 and the inner cylinder 20 thereafter is prevented.

  When the outer cylinder 30 and the front cylinder 10 are further rotated relative to each other from this state, the core chuck 40 is now sent in the axial direction from the relay spiral cylinder 50 by the relative rotation with the relay spiral cylinder 50, and the core chuck 40 The rod-shaped decorative material A attached to the upper-end holder 48 is fed further upward from the front tube 10. When the core chuck 40 protrudes from the relay spiral cylinder 50 until the convex piece 47 of the core chuck 40 interferes with the downward stepped portion 51a of the relay spiral cylinder 50, the relative rotation of the core chuck 40 and the relay spiral cylinder 50 is prevented thereafter. .

  FIG. 4 shows a state in which the core chuck 40 protrudes most from the relay spiral cylinder 50 and further the relay spiral cylinder 50 protrudes most from the inner cylinder 20 in this way. The difference in the support position of the holder 48 in FIGS. 1 and 4 corresponds to the stroke distance of the holder 48. In the above description, the lead chuck 40 is fed following the feed of the relay spiral cylinder 50. However, the relative rotation resistance between the core chuck 40 and the relay spiral cylinder 50, the relay spiral cylinder 50, and the inner cylinder are determined. This order may be reversed depending on the magnitude of the relative rotation resistance with 20.

  In this way, the stick-shaped cosmetic material feeding container 1 is a two-stage type that includes the screw feeding mechanism constituted by the relay spiral cylinder 50 and the inner cylinder 20 and the screw feeding mechanism constituted by the core chuck 40 and the relay spiral cylinder 50. A long stroke distance of the holder 48 is realized while keeping the overall length short under the feeding structure.

  Here, with reference to FIG. 5, the structure of the holder 48 and the holding of the stick-shaped decorative material A will be described in more detail.

  The inner peripheral surface of the holder 48 is designed to have a circular cross section. However, when a holder 48 having a structure in which a plurality of axial projections 48b are connected through a thin film portion 48a is formed by injection molding of a plastic material, the opening at the upper end of the holder 48 is formed as shown in FIG. As shown to A), it becomes a substantially elliptical cross section represented by the short axis D-α and the long axis D + α.

  That is, at the time of injection molding, the melted plastic material flows from the thick band-shaped protrusion 48a portion toward the thin film portion 48b portion inside the mold. At this time, a difference in internal stress occurs between the belt-like protrusion 48a and the thin film 48b, and the core pin slightly moves depending on the pressure and speed of the plastic at the time of injection molding, causing a slight uneven thickness in the thin film 48a. The part is deformed. The degree of deformation is not always constant. If an opening window is provided on the side surface of the holder 48a, the movement of the core pin of the mold that forms the hollow portion of the holder 48 due to the injection molding pressure and the injection molding speed can be reduced. This measure is more effective as the thin film portion 48a is thinner.

  The thin film portion 48a is preferably thin as long as it can hold the rod-shaped decorative material A without damaging the opening. Preferably, 0.05 mm is the minimum value and 0.3 mm is the maximum value. The thinner the thin film portion 48a, the greater the degree of deformation of the opening. According to the inventors' research, when the thickness of the thin film portion 48a is set to 0.1 mm at the upper end portion of the holder 48 and 0.2 mm at the bottom portion, the thin film portion 48a is caused by slight movement of the core pin during injection molding. The thickness is 0.08 mm at the portion with the upper end and 0.18 mm at the portion with the bottom, which is thinner than the set thickness. It is 0.12 mm at another part of the upper end and 0.22 mm at another part of the bottom, which is thicker than the set thickness. This variation in thickness of the thin film portion 48a causes the opening to be deformed into a substantially elliptical shape as shown in FIG.

  Such an elastic structure of the holder 48 brings the following preferable characteristics to the stick-shaped decorative material feeding container 1.

  That is, the holder 48 whose opening is deformed into a substantially oval shape as shown in FIG. 5 (A) is shown in FIG. 5 (B) in a state where the holder 48 is housed inside the front tube 10 as shown in FIG. As described above, the belt-like protrusion 48 b comes into contact with the wall surface of the sliding groove 12, or the thin film portion 48 a comes into contact with the inner peripheral surface of the front tube 10. As a result, the substantially elliptical cross section of the opening is corrected to a circular cross section as shown in FIG.

  After assembling the stick-shaped decorative material feeding container 1, the stick-shaped decorative material A is inserted into the through-hole 13 from the opening 11 at the distal end of the front tube 10, and the base end is pushed into the holder 48 to be attached to the holder 48.

  At this time, since the opening of the holder 48 is corrected to have a circular cross section, the rod-shaped decorative material A having a circular cross section can be inserted into the holder 48 without hindrance.

  Thus, the rod-shaped decorative material A once inserted into the holder 48 supports the holder 48 from the inside, and corrects the shape of the holder 48 from the inside to the circular cross-sectional shape as designed. As a result of this correction, the belt-like protrusion 48b does not lean against the wall surface of the sliding groove 12, and the holder 48 fitted with the stick-shaped decorative material A can be smoothly displaced in the axial direction in the front tube 10. Moreover, the rigidity of the holder 48 is increased by being supported by the rod-shaped decorative material A.

  On the other hand, under this structure of the holder 48, only the thin film 48 a is interposed between the rod-shaped decorative material A and the inner peripheral surface of the front tube 10. The clearance between the outer periphery and the inner peripheral surface of the front tube 10 can be kept in a very small preferable range without forming a step in the stick-shaped decorative material A.

  Further, when the core chuck 40 is inserted into the front tube 10 in assembling the stick-shaped cosmetic material feeding container 1, the thin film portion 48 a and the belt-like protrusion 48 b of the holder 48 come into contact with the inner peripheral surface of the front tube 10 and the sliding groove 12. Thus, the core chuck 40 can be prevented from naturally falling from the front tube 10. The prevention of the natural fall of the core chuck 40 has an effect of facilitating the assembly of the stick-shaped decorative material feeding container 1.

  Furthermore, when the holder 48 is in contact with the inner periphery of the front tube 10, the effect of preventing the horizontal deformation of the stick-shaped decorative material A in the feeding operation and the pulling-in operation of the stick-shaped decorative material A is also obtained.

  Furthermore, a favorable operational feeling can be obtained in the feeding operation and the pulling-in operation of the bar-shaped decorative material A due to an appropriate frictional resistance between the holder 48 and the front tube 10.

  As described above, the stick-shaped decorative material feeding container 1 has a long stroke distance of the holder 48 by the two-stage feed structure. However, the long stroke distance of the holder 48 means that the stick-shaped decorative material A is long. Means. The longer the stick-shaped decorative material A is, the easier it is to bend, and it is more likely to come into contact with the inner peripheral surface of the front tube 10 when it is displaced in the front tube 10 or to shake horizontally. Therefore, the above-described operation provided by the structure of the holder 48 has a particularly favorable effect in a feeding container having a long stroke distance.

  In the above embodiment, the relay spiral cylinder 50 corresponds to a first cylinder member, and the inner cylinder 20 corresponds to a second cylinder member.

  The above embodiment describes a case where the inner peripheral surface of the holder 48 is designed to have a circular cross section, while the inner peripheral surface has a substantially elliptical cross section as a result of the injection molding of the holder 48. However, if the cross section of the holder 48 is corrected to a cross section that can receive the rod-shaped decorative material A in the state of being housed inside the front tube 10, the transverse shape of the inner peripheral surface of the holder 48 is not necessarily circular. There is no need to design.

  In the above embodiment, the holder 48 is provided with the belt-like protrusion 48a, and the sliding groove 12 for guiding the belt-like protrusion 48a is formed in the front tube 10. However, these are not essential requirements, and the holder 48 is formed in a cylindrical shape. It is possible to configure only the thin film portion 48a and the bottom surface and to omit the sliding groove 12.

  Further, in the above embodiment, the present invention is applied to a feeding container applied to a rod-shaped decorative material having a circular cross section, but the cross-section of the rod-shaped decorative material is not limited to a circle, for example, a rod shape having an elliptical cross section. The present invention can also be applied to a cosmetic material feeding container.

  In the above embodiment, the present invention is applied to a feeding container provided with a two-stage feeding mechanism. However, the present invention is not limited to two stages, and is applied to all stick-shaped decorative material feeding containers provided with a multi-stage feeding mechanism. Applicable.

  The stick-shaped cosmetic material feeding container according to the present invention can be used for stick-shaped cosmetic containers such as lipsticks and concealers.

It is a perspective view of the longitudinal section in the contracted state of the stick-shaped cosmetic material delivery container by this invention. It is the perspective view and principal part sectional drawing of the longitudinal cross-section in the state which decomposed | disassembled the upper part of the stick-shaped cosmetic material delivery container. It is the perspective view and longitudinal cross-sectional view of the longitudinal section in the state which decomposed | disassembled the lower part of the stick-shaped cosmetic material delivery container. Although it is similar to FIG. 1, the expansion | extension state of a stick-shaped cosmetic material delivery container is shown. FIG. 5 is a cross-sectional view of the opening of the holder provided in the stick-shaped cosmetic material feeding container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bar-shaped cosmetic material delivery container 2 Main body 3 Cap 3a Fitting groove 10 Lead tube 10a Protruding part 10b Protruding part 11 Opening part 10 Leading cylinder 12 Sliding groove 13 Through hole 16 Coupling part 17 Knob part 20 Inner cylinder 21 Fitting groove 22 Flange 23 Inner projecting step portion 23a Downward stepped portion 24a Protruding portion 24b Protruding portion 25 Vertical rib 26 Female thread portion 27 Upper end cavity portion 30 Outer cylinder 31 Fitting groove 32 Knurl 33 Bottom surface 40 Core chuck 41 Cavity portion 44 Rod shaft 45 Protrusion 46 Slit 47 convex piece 47a upper end face 48 holder 48a thin film part 48b strip-like protrusion 50 relay spiral cylinder 51 female thread part 51a downward step part 52 intermediate part 53 large diameter part 53a upper end part 53b downward step part A stick-shaped decorative material

Claims (7)

In the stick-shaped cosmetic material feeding container in which the holder for holding the base end of the stick-shaped decorative material is advanced and retracted under the multistage feeding mechanism inside the cylindrical tip tube,
The holder has an elastically deformable opening for receiving the bar-shaped decorative material, and the holder is formed in a substantially cylindrical shape by a thin film so that the cross-section of the opening in a self-standing state is not similar to the cross-section of the bar-shaped decorative material ,
A feeding container for a stick-shaped decorative material, characterized in that a cross-section of the inner periphery of the front tube is formed in a shape for correcting the cross-section of the opening of the holder so that the stick-shaped decorative material can be inserted into the holder.   The multi-stage feeding mechanism is configured to displace the holder in the axial direction inside the front tube, and the rod-shaped decorative material is inserted into the holder through an opening formed at the tip of the front tube. Item 10. A stick-shaped cosmetic material feeding container according to Item 1.   3. The stick-shaped makeup according to claim 1, wherein the holder includes a protrusion that protrudes outward from a cylinder made of a thin film, and the leading tube has a groove formed on an inner peripheral surface for guiding the protrusion only in the axial direction. Material feeding container.   The stick-shaped cosmetic material feeding container according to claim 3, wherein the protrusions are formed of a plurality of axially long band-shaped protrusions formed on the outer periphery of the cylinder at equal angular intervals.   The feeding container for the bar-shaped decorative material according to any one of claims 1 to 4, wherein a thickness of the thin film is set in a range of 0.05 millimeters to 0.3 millimeters.   The multi-stage feeding mechanism is coupled to the rod shaft coupled to the holder, the first cylindrical member threadedly engaged with the outer periphery of the core shaft, and the tip tube so as to be rotatable relative to the outer periphery of the relay spiral tube. The feeding container of the stick-shaped decorative material according to any one of claims 1 to 5, further comprising a second cylindrical member that performs the above operation.   The stick-shaped cosmetic material feeding container according to claim 6, wherein the holder and the core shaft are integrally formed by injection molding of a plastic material.