JP4560583B1 - Cosmetic material supply container - Google Patents

Abstract

To provide a cosmetic material feeding container in which the assembling property of a core chuck member into which a male screw is threaded and a female cylinder is improved.
SOLUTION: A front tube 10 having a front end opening hole 11 formed at a front end, a base tube 20 rotatably assembled to the front tube 10, and a male screw 35 formed on an outer periphery, the front tube 10 and the base tube 20 are A core chuck member 30 that is capable of advancing and retreating by relative rotation; a female screw 42 that is engaged with the male screw 35; and a female screw cylinder 40 that is engaged with the inner periphery of the base tube 20 and rotates synchronously. A cosmetic material feeding container 1 for causing a rod-shaped decorative material A held at the tip of a member 30 to advance and retreat from a tip opening hole 11 by relative rotation of a front tube 10 and a base tube 20, and a female screw tube 40 has a circumference. The female screw 42 is formed in a part of the inner peripheral wall 48 facing the slit 44.
[Selection] Figure 3

Description

  The present invention relates to a cosmetic material feeding mechanism and relates to a cosmetic material feeding container.

  When trying to make the feeding lead small in the cosmetic material feeding container, the male screw lead of the feeding member is manufactured to be small. Since it was not, assembly was very difficult. For this reason, a female thread cylinder has been proposed that facilitates assembly.

  Patent Document 1 discloses a feeding mechanism as a rotary bar-shaped material feeding tool. A large number of engaging projections 5 c formed on the outer peripheral portion of the rod-shaped object holder 5 are engaged and guided by a spiral guide portion 4 b formed on the inner periphery of the spacer 4.

  FIGS. 13 and 14 disclose a spacer 4 having a hinge portion 4e that can easily form a spiral guide portion 4b.

  However, the spacer 4 in FIGS. 13 and 14 must be assembled by opening the hinge portion 4e and aligning the spiral guide portion 4b with the engaging protrusion 5c of the rod-like object holder 5, and thus cannot be said to be a simple assembling method.

  Further, Patent Document 2 discloses an intermediate screw member of a rotary rod-shaped object feeding tool with further improvements.

  The internal thread member 6 is an internal mechanism of a bar-shaped feeding tool having a large end, and is provided for the purpose of mounting the internal thread portion 6i of the internal thread member 6 to the external thread portion 3c of the slider 3. The member 6 is divided into an outer wall 6a and an inner wall 6b. As shown in detail in FIGS. 9 to 11, the outer wall 6a and the inner wall 6b are connected by a connecting portion 6g in the horizontal direction, and a gap 6h is formed above and below the connecting portion 6g. The thickness of each part is made almost uniform, and the problem of sink marks is solved.

  Further, a female screw portion 6i that is screwed with the male screw portion 3c of the slider 3 is formed on the inner wall 6b.

  Further, the assembly method is described in paragraphs [0020], [0021], and [0022] in the specification. In particular, in the paragraph [0021], “in this case, the operator When the locking protrusion 6k formed on the fingernail is picked with a fingertip and a force is applied toward the center of the gap 6f, the gap 6f is narrowed, while the slider 3 is guided by the guide 6e to push open the split groove 6dd. Therefore, the intermediate screw member 6 can be easily incorporated into the slider 3. ", and even in claim 1," the locking protrusion formed on the outer side of the intermediate screw member is provided on the side opposite to the split groove. " It is characterized in that it is respectively arranged in the vicinity of both outer walls on both sides of the gap portion formed ".

  Therefore, the screwing method of the slider 3 and the internal thread portion 6i employs means for widening the split groove 6dd by narrowing the gap 6f formed on the opposite side of the split groove 6dd by pinching the locking protrusion 6k. In addition, since the external thread of the slider 3 is not on the circumference and is only a part, it cannot be screwed in with one touch, and smooth feeding and sliding cannot be expected.

  Furthermore, if a further rotating operation is performed at the upper limit, the female screw portion 6i may be scraped by excessive rotation or the middle screw member 6 itself may be distorted.

JP-A-9-238743 Japanese Patent No. 3724769

  An object of the present invention is to solve the above-mentioned problems and to provide a cosmetic material feeding container that can improve the assembling property of a core chuck member and a female screw cylinder in which a male screw is engraved, and can prevent damage to the member. .

1st invention, the front cylinder in which the front-end | tip opening hole was formed in the front-end | tip, the base cylinder rotatably assembled | attached to the said front cylinder, the external thread is formed in the outer periphery, and relative rotation of the said front cylinder and the said base cylinder A lead chuck member that can be advanced and retracted by a screw, and a female screw that is engaged with the inner periphery of the base tube and that rotates in synchronization with the internal screw. A cosmetic material feeding container for advancing and retracting a held stick-shaped decorative material from the tip opening hole by relative rotation of the leading tube and the base tube, wherein the female screw tube has a slit that opens a part of the circumference. Formed in a C-shaped cross section, the female thread is formed on a part of the inner peripheral wall facing the slit, and when a further rotational load is applied at the rising limit and the falling limit of the bar-shaped decorative material, Repeated screw release and screw return between A plurality of vertical ribs projecting toward the inner circumference of the base cylinder are formed on the outer periphery of the female cylinder, and the vertical ribs are engaged with the inner circumference of the base cylinder to synchronize with the female cylinder. A knurling that is rotatable is formed, and at least one of the vertical ribs protrudes from an outer periphery at a position facing the slit .

  The second invention is characterized in that the female screw is formed to have a width larger than a slit width of the slit.

According to a third aspect of the present invention, the width of the slit of the female screw cylinder is smaller than the outer diameter of the male screw.

According to the first aspect of the present invention, the internal thread cylinder formed with the internal thread that engages with the external thread of the core chuck member is formed in a C-shaped cross section having a slit with a part of the periphery open. A core chuck member can be fitted and a male screw and a female screw can be screwed together. At this time, since the female thread of the female thread cylinder is formed on a part of the inner peripheral wall facing the slit, when the core chuck member is fitted to the female thread cylinder, the male thread and the female thread can be easily screwed together. Is easy to enter into the female screw cylinder. Therefore, it is possible to improve the assembling property between the core chuck member in which the male screw is threaded and the female screw cylinder. Further, since the knurl is formed on the inner periphery of the base cylinder, the vertical ribs of the female thread cylinder engage with the knurl, and the base cylinder and the female thread cylinder can be rotated synchronously as a unit. In addition, since the screwing mechanism is configured simply by inserting the core chuck member to which the female screw cylinder is screwed into the base cylinder, the assembly is easy.

  When further turning load is applied at the upper limit and lower limit, the male chuck of the core chuck member and the female thread of the female thread cylinder are released from the threaded state when the male thread escapes in the slit direction. It can be prevented that both members are damaged by being pushed by the inner circumferences of both ends of the slits of the cylinder and screwing back to repeat the clutch. Further, at the time of clutching, a crackling sound is made by repeating the screw release and the screw return to notify that the upper limit or the lower limit is reached.

  According to the second invention, since the female screw provided on the inner peripheral wall facing the slit of the female screw cylinder is formed with a width larger than the slit width of the slit, the screwing with the male screw of the core chuck member is ensured. it can.

According to the third invention, since the slit is formed with a width smaller than the diameter dimension of the male screw of the core chuck member, the female screw threaded to the rod shaft with one touch is screwed into the female screw and the male screw, Since it does not drop and escape from the rod shaft, it can be moved and transported in this state, contributing to simplification of assembly.

1 shows a cosmetic material feeding container 1 according to a first embodiment of the present invention, in which (A) shows a partial longitudinal sectional view of a descending lower limit of the cosmetic material A, and (A ′) shows AA. A cross-sectional view is shown. The upper limit of the raising of the decorative material A is shown, and (B) shows a partial longitudinal sectional view of the decorative material supply container 1. (B ') represents a screwing position between the female screw of the female screw tube 40 and the male screw of the rod shaft 34 provided with a double spiral screw. 1 shows each member used in the cosmetic material feeding container 1 of FIG. 1, (C) is a leading tube 10, (C ′) is a BB cross-sectional view, (D) is a base tube 20, and (E) is a core chuck. The members 30 and (F) represent the female screw cylinder 40. It is the figure which showed the detail of the internal thread cylinder, (F ') is an enlarged view of internal thread cylinder 40, (F' ') shows internal thread cylinder 140 which is another form. 1 shows a cosmetic material feeding container 201 according to a second embodiment of the present invention, in which (I) is a longitudinal sectional view of a lowering lower limit of the cosmetic material B, (J) is a cap 203, (K). Is a sectional view taken along line EE, (L) is a female threaded tube 240, and (L ') is a female threaded tube 340 in another form. 5 shows each member used in the cosmetic material feeding container 201 of FIG. 5, (M) is a leading tube 210, (M ′) is an FF cross-sectional view, (N) is a core chuck member 230, and (O) is a base. The cylinder 220 is represented, (P) is a core chuck member 330, and (P ') is a GG cross-sectional view.

  The present invention will be described in detail with reference to the drawings.

(First embodiment)
Hereinafter, the cosmetic material supply container 1 according to the first embodiment will be described with reference to FIGS. 1 to 4.

  FIG. 1A is a partial longitudinal sectional view of a cosmetic material feeding container 1 according to the first embodiment of the present invention. The cosmetic material A used here is, for example, an eyebrow or eye Small diameter stick-shaped decorative materials such as liners and lip liners are shown. Moreover, FIG. 1 (A) shows the lowering lower limit of the decorative material A.

  FIG. 2 (B) shows the upper limit of the cosmetic material A.

  Each member of the cosmetic material supply container 1 shown in FIG. 1 (A) and FIG. 2 (B) will be described. Each member is illustrated in FIG.

  The front tube 10 shown in FIG. 3 (C) is constituted by a knob portion 14 and a base tube insertion portion 15 following this in the axial direction, and a through hole 12 is drilled with substantially the same size as the tip opening hole 11. Four sliding grooves 13 are provided along the through hole 12.

  The base tube insertion portion 15 is provided with an annular convex portion 18 that is rotatably connected to the base tube 20, and an O-ring groove 16 is provided.

  A base cylinder 20 shown in FIG. 3 (D) has a cylindrical shape and is provided with a fitting recess 23 to be connected to the front cylinder 10 inside the tip opening hole 25. 22 and knurls 21 are formed.

  The core chuck member 30 shown in FIG. 3 (E) has a front end cosmetic material holding portion 31 formed of four claw pieces 32, and extends to the claw piece 32 so that the four engagement strips 33 are formed. A rod shaft 34 is provided in a further downward direction from the engagement strip 33, and a male screw 35 having a stroke length is threaded and extended on the outer periphery, and a cylindrical portion 36 having a larger diameter than the rod shaft 34 is formed at the rear. The

  Since the male chuck diameter 30 of the core chuck member 30 is smaller than the engagement strip diameter dimension R and smaller than the cylindrical diameter S, the female cylinder 40 shown in FIG. Is assembled by being pushed through the slit 44.

  Hereinafter, the female cylinder 40 will be described in more detail with reference to FIG.

  The enlarged view of FIG. 4 (F ′) is distinguished from the front three-dimensional view, CC longitudinal cross-sectional view, and P arrow view from the left side, and the female thread tube 40 is thin-walled 45 and molded into a C-shaped tube with a resin such as plastic. The dimension of the thin wall 45 is ideally about 0.25 mm to 0.55 mm where the elasticity can be fully utilized.

  The internal thread cylinder 40 is restrained in the axial direction by being sandwiched between the lower end surface 17 of the front cylinder 10 and the step portion 22 of the base cylinder 20, and the vertical ribs 41 a to 41 c engage with the knurls 21 of the base cylinder 20. That restrains the rotation.

  The female screw cylinder 40 includes an axially extending slit 44 formed by opening a part of the circumference, and a female screw 42 formed on the inner peripheral wall 48 corresponding to the male screw 35 of the core chuck member 30. The female cylinder 40 is formed to have a C-shaped cross-section by providing the slit 44. As a result, the rod shaft 34 can be fitted into the female screw cylinder 40 from the slit 44.

  The slit width Y of the slit 44 is formed to be smaller than the outer diameter of the male screw 35 of the rod shaft 34. As a result, it is possible to push the rod shaft 34 into the female screw tube 40 and insert it, and to prevent the inserted rod shaft 34 from coming off the female screw tube 40. Further, since the thin wall 45 of the female screw cylinder 40 is formed of a plastic having a thickness of about 0.25 mm to 0.55 mm that can sufficiently utilize elasticity, the rod shaft 34 of the core chuck member 30 is fitted to the female screw cylinder 40. In addition, the opening width Y of the slit 44 can be instantaneously increased by the rod shaft 34.

  The first feature is that the female screws 42 are continuously arranged in a part of the inner peripheral wall 48 facing the slit 44 of the female screw cylinder 40. In the embodiment, the left double thread L = 1 mm and P = 0.5 mm are provided in 11 threads at a height of 0.25 mm. Thus, when the core chuck member 30 is pressed against the slit 44 and pushed in, the screwing of the female screw 42 and the male screw 35 is completed. This operation can be performed with one touch.

  The internal thread width Z of the internal thread 42 shown in FIG. 4 (F ′) is the width of the portion where the internal thread 42 is formed on the inner peripheral wall 48 of the internal thread cylinder 40. The female screw 42 is formed so that the female screw width Z is larger than the slit width Y of the slit 44. By providing the female screw width Z of the female screw 42 as large as possible, the screwing distance between the rod shaft 34 and the male screw 35 is increased, and the screwing is ensured.

  Further, vertical ribs 41 a and 41 b are projected from the outer peripheral wall 47 of the female screw tube 40 in parallel with the slit 44, and vertical ribs 41 c are projected from the outer peripheral wall 47 on the opposite side of the slit 44. These vertical ribs 41a to 41c are engaged with the step portion 22 and the knurled portion 21 of the inner diameter of the base cylinder 20, whereby the base cylinder 20 and the female thread cylinder 40 are integrated.

  The central vertical rib 41 c among the vertical ribs 41 a to 41 c is formed on the outer peripheral wall 47 at a position facing the slit 44 in the female screw cylinder 40, that is, the outer peripheral wall 47 on the opposite side of the slit 44 by 180 °. The number of the longitudinal ribs 41 c formed on the outer peripheral wall 47 at a position facing the slit 44 may be two or more instead of one. That is, at least one vertical rib 41 c among the plurality of vertical ribs 41 a to 41 c is formed on the outer peripheral wall 47 at a position facing the slit 44.

  Here, a female screw 42 is formed in a part of the inner peripheral wall 48 facing the slit 44 of the female screw cylinder 40. A force in a direction away from the rod shaft 34 acts on the female screw tube 40 by screwing the female screw 42 of the female screw tube 40 and the male screw 35 of the rod shaft 34. For this reason, the bar shaft 34 tries to protrude from the female thread cylinder 40 by expanding the slit width Y of the slit 44, and the female thread cylinder 40 tends to move away from the bar shaft 34.

  Since the female rib 40 is provided with the vertical rib 41 c on the outer peripheral wall 47 at a position facing the slit 44, the vertical rib 41 c engaged with the knurl 21 functions as a stopper, so that the female thread 40 is separated from the rod shaft 34. And the screwing of the female screw 42 and the male screw 35 is ensured.

  Further, the vertical ribs 41 a and 41 b at both ends are formed on the outer peripheral wall 47 at the free end facing the slit 44 of the female screw cylinder 40. As a result, when a force that increases the slit width Y of the slit 44 is applied from the rod shaft 34, the vertical ribs 41a and 41b engaged with the knurl 21 function as stoppers for supporting the free end of the female thread tube 40. It is possible to prevent the female thread tube 40 from being deformed and the slit width Y of the slit 44 from increasing. Accordingly, the rigidity of the female screw cylinder 40 is increased, the screwing of the female screw 42 and the male screw 35 is ensured, and the rod shaft 34 can be prevented from coming off from the female screw cylinder 40.

  The three vertical ribs 41a to 41c are formed at intervals greater than 90 °. Of the vertical ribs 41a to 41c, the two vertical ribs 41a and 41b at both ends can receive a force acting on the female cylinder 40 toward the opposite side of the central vertical rib 41c. Therefore, when the internal thread cylinder 40 is engaged with the knurl 21, the force acting on the internal thread cylinder 40 from all directions on the outer periphery can be received by the three vertical ribs 41a to 41c.

  The enlarged view of FIG. 4 (F ″) is a diagram showing the female threaded tube 140, in which a single female thread 142 projects from a part of the inner peripheral wall 148 on the opposite side of the slit 144. An example that can be screwed onto the male screw 35 is given. Thus, the number of threads of the female screw 142 may be any number as long as it is one or more.

  The cosmetic material feeding container 1 of the present invention is assembled in the following procedure.

  The rod shaft 34 of the core chuck member 30 is pushed into the slit 44 of the female thread cylinder 40 and is fitted to the rod shaft 34. This work can be done with one touch.

  Since the slit width Y is set to be smaller than the male screw diameter dimension X, the female thread tube 40 fitted to the rod shaft 34 is fitted to the male screw 35 threaded on the circumference of the rod shaft 34 at the same time as the fitting. The female screw 42 of the female screw cylinder 40 is screwed.

  Further, the internal thread cylinder 40 fitted to the rod shaft 34 does not escape from the rod shaft 34 and is not displaced in the axial direction.

  3E, the rear end surface 33a of the engaging strip 33 and the front end surface 40a of the female threaded tube 40 are fitted in a contact position, and in this state, the core chuck member 30 is fitted from the lower end surface 17 of the front tube 10. When the claw piece 32 is inserted into the sliding groove 13, the engaging strip 33 extending to the claw piece 32 is also guided into the sliding groove 13, and a rotation stop mechanism is configured.

  And the lower end surface 17 of the front tube 10 and the front end surface 40a of the female screw tube 40 abut. When the core chuck member 30 is inserted into the base cylinder 20 from the tip opening hole 25 of the base cylinder 20 sequentially from the cylindrical portion 36, the vertical ribs 41 a, 41 b, 41 c of the female thread cylinder 40 have the inner diameter of the base cylinder 20. The female cylinder 40 and the base cylinder 20 are integrated by engaging the stepped portion 22 and the knurl 21. At that time, the annular convex portion 18 of the front tube 10 and the fitting concave portion 23 on the inner periphery of the base tube 20 are fitted so as to be rotatable so that the assembly is completed.

  The cosmetic material supply container 1 assembled as described above is shown in the lowering lower limit shown in FIG.

  Next, the operation will be described.

  When the front tube 10 and the base tube 20 of the cosmetic material supply container 1 located at the lower limit filled with the decorative material A in FIG. 1A are relatively rotated, the engagement strip 33 of the core chuck member 30 is The male screw 35 screwed on the circumference of the rod shaft 34 is screwed into the female screw 42 of the female screw cylinder 40 to constitute a feeding mechanism. In addition, since the female thread cylinder 40 is integrated with the base cylinder 20, the decorative material A advances in accordance with the lead of the male thread 35 of the bar shaft 34.

  The decorative material A protrudes from the tip opening hole of the front tube 10 and enables makeup.

  FIG. 2 (B) is a diagram showing the upper limit, and the position where the front end surface 36a of the cylindrical portion 36 of the core chuck member 30 is in contact with the rear end surface 40b of the female cylinder 40 is determined as the upper limit.

  For example, when a rotational load for further backward movement is applied in the state of the lowering lower limit in FIG. 1, the female screw 42 installed on the opposite side of the slit 44 of the female screw tube 40 is threaded on the outer periphery of the rod shaft 34. The male screw 35 that has been unscrewed moves slightly toward the slit 44.

  However, since the male screw diameter dimension X of the rod shaft 34 is larger than the slit width Y, it does not escape from the slit 44. The unscrewed male screw 35 is pushed by the inner diameter surface 46 near the slit shown in the view of arrow P in FIG.

  By this operation, a cracking sound is made to repeat screwing / removing and screwing return, thereby informing the user of the lowering lower limit position.

  In a feeding container with a small feeding pitch, the rotation speed from the lowering lower limit to the upper rising limit is set to P = 0.5 mm, L = 1 mm, and a double thread stroke of about 25 mm in the embodiment. Therefore, the cosmetic material is usually automatically rotated by a machine. For this reason, the upper and lower limit clutch mechanisms by the rotational load are necessary absolute conditions.

  The clutch at the lowering and lowering limit of the present invention is also performed at the upper and lowering limit, and it makes a crackling sound to notify the upper and lowering limit and damages the internal thread 35 of the female cylinder 40 and the rod shaft 34 of the core chuck member 30. There is nothing.

  At the time of clutching at the lowering and lowering limit, the force in the direction away from the rod shaft 34 acting on the female thread cylinder 40 is larger than that during normal screwing of the male thread 35 and female thread 42. Also at the time of such a clutch, the vertical rib 41c provided on the outer peripheral wall 47 at a position facing the slit 44 functions as a stopper with the vertical rib 41c engaged with the knurl 21, and the female thread tube 40 is separated from the rod shaft 34. It can prevent trying. Further, the vertical ribs 41 a and 41 b formed on the outer peripheral wall 47 at the free end facing the slits 44 of the female screw cylinders 40 at both ends also function as stoppers, and the rod shaft 34 can be prevented from coming off from the female screw cylinder 40.

  Further, FIG. 2 (B ′) is a view showing the screwing position of the internal thread 42 of the internal thread cylinder 40 and the external thread 35 threaded on the rod shaft 34. The external thread is formed in a double spiral on the circumference of the rod shaft 34. In this case, when the male screw 35 has two threads 35a and 35b, the male screw 35a is screwed one by one with respect to 35a1 and 42a, 35a2 and 42c, 35a3 and 42e, and the female screw 42 of the female screw tube 40. Will be combined.

  In the embodiment, P = 0.5 mm, L = 1 mm, the stroke is about 25 mm, and the rotation number is 25 times or more.

  According to the above embodiment, there exists an effect as shown below.

  In the cosmetic material feeding container 1, the female screw cylinder 40 is formed to have a C-shaped cross section, and the female screw 42 is provided on a part of the inner peripheral wall 48 of the female screw cylinder 40 facing the slit 44. When pressed against the slit 44 and pushed in, the screwing of the female screw 42 and the male screw 35 is completed. This operation can be performed with one touch.

Here, the internal thread 42 of the female screw cylinder 40 is to be formed on a part of the inner circumferential wall 48 you face the slit 44, when fitting the core chuck member 30 into the female screw cylinder 40, the internal thread 42 and external thread 35 Is easy to screw. Therefore, the assembling property between the core chuck member 30 in which the male screw 35 is threaded and the female cylinder 40 can be improved.

  Further, the female cylinder 40 is engaged with the base cylinder 20 while being screwed to the core chuck member 30, and rotates synchronously. If the front tube 10 and the base tube 20 are rotated relative to each other, the core chuck member 30 moves forward according to the lead of the male screw 35.

  In the cosmetic material feeding container 1 with a thin feeding pitch, when the core chuck member 30 is at the upper limit, if the cosmetic material A is filled from the tip opening hole 11 of the front tube 10, the core chuck member 30 is moved downward. It must be deferred until. Regardless of the position at which the cosmetic material A is filled, an operation for confirming that the cosmetic material A is raised to the ascending limit and then lowering it to the descending limit is performed.

  Since the number of revolutions increases because the feeding lead is small, this operation is performed by a machine (not shown), and an extra rotational load is applied at the ascending limit and descending limit.

  In the present invention, when a further rotational load is applied at the ascending / descending limit, the male screw 35 of the core chuck member 30 and the female screw 42 of the female cylinder 40 are screwed in the direction of the slit 44. 34 is released to release the screwed state, and it is pushed back by the inner peripheral walls 48 at both ends of the slit 44 of the female threaded cylinder 40 to repeatedly return the screwing. Not give. In addition, this sound informs the rising rise limit.

  Similarly, even a turning load at the descending descending limit is notified with a crackling sound.

  The first effect of the present invention is to make a sound and inform the members at the ascending and descending limits and not to damage each member.

  Further, since the female thread width Z of the female screw 42 provided in a part of the inner peripheral wall 48 facing the slit 44 of the female thread cylinder 40 is set to be larger than the slit width Y of the slit 44, the male thread 35 of the core chuck member 30. The female screw 42 can be installed as a single screw or a plurality of female screws 42 arranged in a row.

  Further, the three vertical ribs 41 a to 41 c are projected from the outer peripheral wall 47 of the female screw cylinder 40, and the knurl 21 is formed on the inner diameter of the base cylinder 20, so that the vertical ribs 41 a to 41 c are engaged with the knurl 21. The base tube 20 and the female screw tube 40 can be rotated synchronously as a unit.

  Since the screwing mechanism is configured simply by inserting the core chuck member 30 to which the female screw cylinder 40 is screwed into the base cylinder 20, the assembly is simple.

  The female cylinder 40 is thinly formed of a resin such as elastic plastic, and the slit width Y of the slit 44 is set to be smaller than the male thread diameter X of the male thread 35 of the rod shaft 34 of the core chuck member 30. Therefore, since the female thread 40 and the male thread 35 are screwed together and the female thread 40 is screwed onto the rod shaft 34 with one touch, it does not fall out of the rod shaft 34, so that it can be moved and transported in this state. This contributes to simplification of assembly.

(Second Embodiment)
Hereinafter, the cosmetic material supply container 201 according to the second embodiment will be described with reference to FIGS. 5 and 6. In the following embodiment, the description overlapping with the above-described embodiment will be omitted as appropriate, and only the difference will be described.

  The cosmetic material supply container 201 according to the second embodiment is a container intended for a rod-shaped cosmetic material B having a thick core diameter such as a lipstick, for example, and the cosmetic material supply container according to the first embodiment. 1 and different.

  The cosmetic material holding part 231 is formed in a cylindrical shape with an open end in order to hold the cosmetic material B having a thick core diameter such as lipstick. Unlike the cosmetic material holding portion 31 held by the four nail pieces 32, the cylindrical cosmetic material holding portion 231 holds the entire outer periphery of the cosmetic material B. Therefore, the cosmetic material holding portion 231 is like a lipstick. It is possible to hold the decorative material B made of a soft material.

  The upper limit of the delivery of the decorative material B is determined by the contact portion 236 of the engagement strip portion 233 of the core chuck member 230 coming into contact with the step portion 213a of the engagement strip slide groove 213 of the front tube 210.

  On the other hand, the lowering limit of the decorative material B is determined by the rear end surface 237 of the core chuck member 230 coming into contact with the front end surface 240 a of the female screw tube 240.

  In the female threaded tube 240, three vertical ribs are formed at intervals of 90 °, and therefore two vertical ribs at both ends of the three are formed linearly at intervals of 180 °.

  Alternatively, a female screw cylinder 340 as shown in FIG. 5 (L ′) may be used. The female screw cylinder 340 is different from the female screw cylinder including the three vertical ribs described above in that it includes four vertical ribs.

  Four vertical ribs are formed on the female thread tube 340 at intervals of 60 °. The number of the vertical ribs may be five or more, and a protrusion corresponding to the knurled 221 of the base cylinder 220 is formed on the entire outer periphery of the female cylinder 340 instead of the vertical rib, and the entire outer periphery engages with the base cylinder 220. You may do it.

  Further, even when the male screw 335 is not continuously formed on the circumference like the lead chuck member 330 shown in FIG. 6 (P), the female screw tube 240 and the lead chuck member 330 can be screwed together.

  The cross-sectional shape of the rod shaft 334 of the core chuck member 330 is not circular, but is a shape in which two arcs are connected by two strings. That is, two opposite surfaces are formed on the rod shaft 334 in parallel with the shaft. For this reason, the male screw 335 is not formed on the entire circumference of the rod shaft 334 but only on the two opposite circumferences.

  The core chuck member 330 is injection-molded with a resin such as plastic using a mold. For this reason, molding is easier when male threads are not formed near PL (Parting Line) shown in FIG. 6 (P ′). In the core chuck member 330, the slit width of the slit 244 of the female screw tube 240 is formed smaller than the two-surface width of the two surfaces of the rod shaft 334 where the male screw is not formed. This prevents the rod shaft 334 from coming out of the slit 244 regardless of the angle of the male screw 335 when the core chuck member 330 rotates.

  The present invention is not limited to the above-described embodiment, and it is obvious that various modifications can be made within the scope of the technical idea.

  The cosmetic material feeding container of the present invention can be used as a container for feeding and using a cosmetic material such as a rod-shaped cosmetic material.

DESCRIPTION OF SYMBOLS 1 Cosmetic material delivery container 10 Lead cylinder 11 Tip opening hole 20 Base cylinder 21 Knurl 25 Tip opening hole 30 Core chuck member 31 Cosmetic material holding part 34 Bar shaft 35 Male thread 40 Female thread cylinder 41a Vertical rib 41b Vertical rib 41c Vertical rib 42 Female thread 44 slit

Claims (3)

A tip tube having a tip opening hole formed at the tip;
A base tube rotatably assembled to the front tube;
A core chuck member having a male screw formed on the outer periphery and capable of moving forward and backward by relative rotation between the leading tube and the base tube;
A female screw that is threadedly engaged with the male screw, and a female screw cylinder that engages with the inner periphery of the base cylinder and rotates synchronously, and
A cosmetic material feeding container for advancing and retracting the rod-shaped cosmetic material held at the tip of the core chuck member from the tip opening hole by relative rotation of the leading tube and the base tube,
The female cylinder is formed in a C-shaped cross section having a slit that is open at a part of the circumference,
The female screw is formed on a part of the inner peripheral wall facing the slit, and when further rotational load is applied at the ascending limit and descending limit of the bar-shaped decorative material, the screw is released and screwed with the male screw. Repeat the reinstatement,
A plurality of vertical ribs projecting toward the inner periphery of the base cylinder are formed on the outer periphery of the female thread cylinder,
On the inner periphery of the base cylinder, a knurl is formed that allows the vertical ribs to engage and rotate synchronously with the female thread cylinder.
At least one of the vertical ribs protrudes from the outer periphery at a position facing the slit .   The cosmetic material feeding container according to claim 1, wherein the female screw is formed to have a width larger than a slit width of the slit. The cosmetic material feeding container according to claim 1 or 2 , wherein a width of the slit of the female screw cylinder is smaller than an outer diameter of the male screw .

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