Coating material dispenser

Abstract

To provide an application material delivery container allowing a user to fill the container with more application materials and being compactly made.SOLUTION: An application material delivery container 1 according to one embodiment comprises a first projection part 6c formed on an outer surface of a cylindrical member 6, and second projection parts 3m on an inner face of a container rear part 3. The first projection part 6c has elasticity in a radial direction D2 by a through-hole penetrating in a radial direction D2. The cylindrical member 6 includes a small diameter portion 6b1 projecting inward the radial direction D2 of the cylindrical member 6 and being engaged to a movable body 5, the movable body 5 includes an insertion part 5c inserted into a cylindrical hole 6z of the cylindrical member 6 and engaged with the small diameter portion 6b1. The insertion part 5c includes cut surfaces 5g and 5j engaged with an inner face 6b5 of the small diameter portion 6b1 and extending in an axial direction of the cylindrical hole 6z in the cylindrical hole 6z. The cylindrical hole 6z includes a space portion 6b4 in which the first projection part 6c can displace inward the radial direction D2, formed between the first projection part 6c and the cut surfaces 5g and 5j.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present disclosure relates to an application material dispensing container that dispenses an application material. [Background technology]

[0002] Conventionally, various types of application material dispensing containers that dispense application material have been known. JP 2012-235885 A describes a stick-shaped cosmetic material dispensing container. The stick-shaped cosmetic material dispensing container includes a leading tube that contains a stick-shaped cosmetic material, a container body that engages with the leading tube so as to be relatively rotatable, a female screw member that engages with the leading tube inside the leading tube so as to be synchronously rotatable, and a moving body that screws into the female screw member and advances with the relative rotation of the leading tube and the container body. A spring member that click-engages with the female screw member is further provided behind the female screw member. The spring member is cylindrical with both ends open, and a spiral spring portion that has elasticity that contracts in the axial direction to absorb impact is formed in the axially intermediate portion of the spring member.

[0003] The movable body is disposed behind the stick-shaped cosmetic material, and a piston body is provided between the movable body and the stick-shaped cosmetic material, which pushes out the stick-shaped cosmetic material by adhering to the inside of the front tube. The stick-shaped cosmetic material is a gel-like material used in eyeliner, and contains volatile cosmetic oil. The volatile stick-shaped cosmetic material is directly filled into the storage section of the front tube, and is stored in a state of adhering to the inner surface of the front tube.

[0004] Utility Model Registration No. 3169255 describes a container for dispensing a volatile stick-type cosmetic material. The container for dispensing a volatile stick-type cosmetic material includes a front tube that contains a volatile cosmetic material, and a container body that is engaged with the front tube so as to be rotatable relative to the front tube. The front tube is engaged with the container body to such an extent that it does not come off in the axial direction when rotating relative to the container body, and when replacing the front tube, it is possible to detach the front tube from the container body by applying a certain amount of force in the axial direction.

[0005] The container for dispensing volatile stick-shaped cosmetic material includes a piston body that slides inside the leading tube, a female screw member that is rotatable synchronously with the leading tube inside the leading tube, a spring member that rotates synchronously with the container body inside the container body, and a moving body that is screwed and coupled with the female screw member and moves forward in accordance with the relative rotation of the leading tube and the container body. The spring member is in ratchet engagement with the female screw member. The spring member is cylindrical with both ends open. A spiral spring portion that contracts in the axial middle of the spring member to absorb shock is formed. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2012-235885 A [Patent Document 2] Utility Model Registration No. 3169255 Summary of the Invention [Problem to be solved by the invention]

[0007] In the above-mentioned application material dispensing container and volatile stick-shaped cosmetic material dispensing container, there is a demand for loading more application material such as cosmetics. However, in the application material dispensing container, a female screw member and a spring member are disposed inside the container body, and a spring portion is formed in the axial middle portion of the spring member. This spring portion contracts in the axial direction to absorb impact. Therefore, it is necessary to secure an area inside the container body where the spring member that expands and contracts in the axial direction is disposed, and since it is not possible to load a long application material in the axial direction, a problem may arise in that it is not possible to load more application material. In addition, from the viewpoint of ease of holding, etc., there is a demand for the application material dispensing container to be compact.

[0008] An object of the present disclosure is to provide an applying material dispensing container that can be filled with a larger amount of applying material and can be made compact. [Means for solving the problem]

[0009] The coating material dispensing container according to the present disclosure comprises a cylindrical container front portion, a cylindrical container rear portion that is rotatable relative to the container front portion, a movable body that is arranged behind the coating material located inside the container front portion and has a male screw on its outer periphery, and a cylindrical female screw member that is located inside the container rear portion and has a female screw on its inner periphery that screws into the male screw, and as the container front portion and the container rear portion rotate relative to each other, the male screw and female screw act as a screwing action between the male screw and the female screw works to move the movable body forward relative to the female screw member, thereby dispensing the coating material from the container front portion, and the container rear portion comprises a cylindrical member that is arranged between the container front portion and the female screw member inside the container rear portion, The cylindrical member has a fixing portion that is fixed to the front portion of the container, Cylindrical member Behind the fixed part A first protrusion is provided on the outer surface, and a second protrusion is provided on the inner surface of the rear part of the container, which engages with the first protrusion in the rotational direction of the rear part of the container, the first protrusion is elastic in the radial direction due to a through hole that penetrates the cylindrical member in the radial direction around the first protrusion, the cylindrical member has a small diameter portion that protrudes radially inward of the cylindrical member and engages with the moving body, the moving body has an insertion portion that is inserted into the cylindrical hole of the tubular member and engages with the small diameter portion, the insertion portion engages with the inner surface of the small diameter portion and has a cut surface that extends in the axial direction of the cylindrical hole in the cylindrical hole, and the cylindrical hole has a space between the first protrusion and the cut surface, allowing the first protrusion to be displaced radially inward.

[0010] In this application material dispensing container, a cylindrical container front part and a cylindrical container rear part are engaged to be capable of relative rotation. An application material is disposed inside the container front part, and a moving body having a male screw on the outer periphery is disposed behind the application material. A cylindrical female screw member having a female screw that screws with the male screw of the moving body is disposed inside the container rear part. When the container front part and the container rear part rotate relative to each other, the male screw of the moving body and the female screw of the female screw member screw together, and the moving body advances relative to the female screw member, and the moving body that advances pushes the application material disposed inside the container front part forward, so that the application material is dispensed from the container front part. A cylindrical member having a first protrusion on its outer surface is disposed inside the container rear part between the container front part and the female screw member. A through hole is formed around the first protrusion in the cylindrical member, and the first protrusion has elasticity in the radial direction due to this through hole. That is, the first protrusion is elastically deformable along the radial direction of the cylindrical member. A second protrusion that engages with the first protrusion in the rotational direction is formed on the inner surface of the rear part of the container. The cylindrical member has a small diameter portion that protrudes radially inward, and the small diameter portion engages with the moving body inserted into the cylindrical hole of the cylindrical member. The moving body has an insertion portion that is inserted into the cylindrical hole of the cylindrical member and engages with the small diameter portion. The insertion portion engages with the inner surface of the small diameter portion and has a cut surface that extends in the axial direction in the cylindrical hole. A space portion is formed between the first protrusion in the cylindrical hole and the cut surface of the moving body, allowing the first protrusion to elastically deform radially inward. Therefore, the first protrusion of the cylindrical member engages with the radial inner side of the second protrusion of the rear part of the container, and the cut surface of the moving body is disposed radially inside the first protrusion, so that the axial length of the cylindrical member can be reduced. Therefore, by disposing a cylindrical member with a small axial length, a coating material that is long in the axial direction can be filled, so that a larger amount of coating material can be filled. Furthermore, by reducing the axial length of the cylindrical members that engage with the rear portion of the container and the movable body, respectively, the coating material dispensing container can be made compact.

[0011] shaft The cross section of the fixing part perpendicular to the axial direction is non-circular, and the front part of the container has a fixed part to which the fixing part is fixed, and the cross section of the fixed part perpendicular to the axial direction is similar to the cross section of the fixing part perpendicular to the axial direction. The cylindrical member may have a fixing portion at a front end in an axial direction, and the container front portion may have a fixed portion to which the fixing portion is fixed at a rear end in an axial direction, and the fixing portion may be engaged with the fixed portion in an axial direction and a rotational direction. In this case, when the fixing portion of the cylindrical member is fixed to the fixed portion at the front part of the container, the fixing portion fits into the non-circular fixed portion, thereby enabling the cylindrical member to be engaged with the front part of the container so as to be synchronously rotatable.

[0012] The coating material may be cured while being in close contact with the inner surface of the front part of the container. In this case, since the coating material is in close contact with the inner surface of the front part of the container, even a soft coating material can be more reliably protected inside the front part of the container.

[0013] The first protrusion and the second protrusion may constitute a ratchet mechanism that allows relative rotation in one direction between the front and rear parts of the container and restricts relative rotation in the other direction that is the opposite direction. In this case, the moving body advances due to relative rotation in one direction between the front and rear parts of the container, and relative rotation in the other direction is restricted by the ratchet mechanism. Therefore, it is possible to restrict relative rotation in the other direction between the front and rear parts of the container, as well as unintended retreat of the application material and the moving body.

[0014] The first protrusion may be constantly in contact with the second protrusion, generating constant resistance between the cylindrical member and the rear portion of the container. In this manner, when the first protrusion protruding from the outer surface of the cylindrical member and the second protrusion protruding from the inner surface of the rear portion of the container are constantly in contact with each other, it is possible to generate constant resistance between the cylindrical member and the rear portion of the container, thereby suppressing rattling between the cylindrical member and the rear portion of the container. Effect of the Invention

[0015] According to the present disclosure, it is possible to pack a larger amount of coating material and make the container more compact. [Brief description of the drawings]

[0016] [Figure 1] FIG. 2 is a side view showing the coating material dispensing container according to the embodiment. [Diagram 2] 2 is a side view showing a state in which the cap is removed from the applying material dispensing container of FIG. 1. FIG. [Diagram 3]2 is a cross-sectional view taken along line AA of the application material dispensing container of FIG. 1. [Figure 4] 2 is a perspective view showing a front part of the applying material dispensing container of FIG. 1. [Diagram 5] 2 is a perspective view showing a movable body, a cylindrical member, and a female screw member of the applying material dispensing container of FIG. 1. [Figure 6] 2 is a cross-sectional perspective view of the rear part of the applying material dispensing container of FIG. 1. [Figure 7] 6(a) is a perspective view of the tubular member of Fig. 5 as seen from the front side, and (b) is a perspective view of the tubular member of Fig. 5 as seen from the rear side. [Figure 8] FIG. 6 is a cross-sectional perspective view of the tubular member of FIG. 5. [Figure 9] FIG. 4 is a cross-sectional view taken along line BB in FIG. [Figure 10] 4 is a cross-sectional view showing a state in which the cap has been removed from the applying material dispensing container of FIG. 3 and the applying material has been dispensed. FIG. [Figure 11] 5(a) and 5(b) are cross-sectional views showing an application material dispensing container according to a comparative example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of an applying material dispensing container according to the present disclosure will be described with reference to the drawings. In the description of the drawings, the same or corresponding elements are given the same reference numerals, and duplicated description will be omitted as appropriate.

[0018] Fig. 1 is a side view of an applying material dispensing container according to an embodiment. Fig. 2 is a side view showing a state in which the cap has been removed from the applying material dispensing container of Fig. 1. Fig. 3 is a cross-sectional view taken along line AA in Fig. 1. As shown in Figs. 1 to 3, the applying material dispensing container 1 according to this embodiment is, for example, a pencil-type container that dispenses (pushes) applying material M contained in a front portion 2 of the container by operation of a user.

[0019] The application material M is, for example, a cosmetic. The application material M is, for example, a lip liner, lipstick, lip gloss, eyebrow, eyeliner, cosmetic stick, or concealer. The application material M may be a very soft rod-shaped material (for example, semi-solid, soft, soft, jelly, mousse, or a paste containing these). Furthermore, the application material M may be a thin rod-shaped material with an outer diameter of 1.5 mm or less, a general rod-shaped material with an outer diameter of 1.5 mm or more and 3.0 mm or less, or a thick rod-shaped material with an outer diameter of 4.0 mm or more.

[0020] The applying material dispensing container 1 comprises a cylindrical container front part 2 in which the applying material M is accommodated, and a cylindrical container rear part 3 which is connected to one end of the container front part 2 in the axial direction D1 and engages with the container front part 2. The applying material dispensing container 1 further comprises a cap 10 which is attached to the container front part 2, and when the cap 10 is removed, the container front part 2 and the container rear part 3 are rotated relatively in one direction to extrude the applying material M from the container front part 2, the applying material dispensing container 1 is ready for use.

[0021] The cap 10 includes a cylindrical outer cap 11 with a bottom, and a stepped cylindrical inner cap 12 that is held at the bottom of the outer cap 11. The outer cap 11 has an annular recess 11c and an annular protrusion 11d on its inner surface. The outer cap 11 is a portion into which the container front part 2 is inserted. The outer cap 11 has an inner peripheral surface 11f, and a recess 11g with which the container front part 2 engages is formed on the inner peripheral surface 11f.

[0022] The inner cap 12 has an annular protrusion 12b on its outer circumferential surface, and the annular protrusion 12b passes over the annular protrusion 11d and fits into the annular recess 11c, thereby fixing the inner cap 12 to the outer cap 11. The inner cap 12 is provided to ensure airtightness of the application material M located inside the container front part 2 to which the cap 10 is attached. The inner cap 12 has a cylindrical insertion part 12d into which the container front part 2 is inserted.

[0023] In this disclosure, the term "axis" refers to the axis of the cylindrical body, and indicates the center line of the coating material dispensing container that extends along the longitudinal direction of the coating material dispensing container. The term "axial direction" refers to the longitudinal direction of the coating material dispensing container, and indicates the direction along the axis. "Front", "front side", and "forward" refer to the direction from the rear part 3 of the container toward the front part 2 of the container in the axial direction, and "rear", "rear side", and "rear" refer to the direction from the front part 2 of the container toward the rear part 3 of the container in the axial direction. "Radial direction" refers to the direction perpendicular to the axis, and "rotational direction" refers to the direction along a ring centered on the axis (e.g., the circumferential direction). In this disclosure, the dispensing direction of the coating material M is the forward direction (forward direction), and the opposite direction is the rearward direction (rearward direction).

[0024] Arranged inside the container front part 2 are a piston 4 that pushes out the coating material M, a moving body 5 that moves the piston 4 forward, a cylindrical member 6 through which the moving body 5 is inserted, and a cylindrical female screw member 7 located on the rear side of the cylindrical member 6. The moving body 5 is arranged so as to extend in the axial direction D1 in the cylindrical member 6 and the female screw member 7 located inside the container rear part 3.

[0025] FIG. 4 is a perspective view showing the container front part 2. The container front part 2 is made of, for example, PBT (Poly Butylene Terephtalate) resin. As shown in FIG. 3 and FIG. 4, the container front part 2 has an opening 2b located at one end in the axial direction D1 and a tapered surface 2c that inclines so that the container front part 2 expands in diameter as it moves away from the opening 2b. The opening 2b is a portion where the application material M in the container front part 2 is exposed, and the application material M protrudes from the opening 2b and is used. The tapered surface 2c extends, for example, from the opening 2b to a position beyond the center of the container front part 2 in the axial direction D1.

[0026] The container front part 2 has a protrusion 2d to which the cap 10 (outer cap 11) is attached. The protrusion 2d has, for example, a circular shape. The protrusion 2d is formed, for example, on the rear side of the tapered surface 2c. The tapered surface 2c enters the inside of the outer cap 11 and the protrusion 2d engages with the recess 11g of the outer cap 11, whereby the cap 10 is attached to the container front part 2.

[0027] The container front part 2 has a flange 2f rearward of the center in the axial direction D1 of the container front part 2. The flange 2f is a portion where an end face 11h of the cap 10 (outer cap 11) and an end face 3b of the container rear part 3 face each other along the axial direction D1. The container front part 2 has an annular protrusion 2g that protrudes radially outward from the container front part 2. The annular protrusion 2g engages with an annular recess 3c formed on an inner surface 3g of the container rear part 3, thereby allowing the container front part 2 to engage with the container rear part 3 so as to be rotatable relative to the container rear part 3.

[0028] The container front part 2 has a fixed part 2h to which the cylindrical member 6 is fixed. The fixed part 2h is provided, for example, on an end face 2j located at one end (rear end) in the axial direction D1 of the container front part 2. The fixed part 2h is concave and recessed from the end face 2j of the container front part 2. The fixed part 2h has an inner side surface 2k extending from the end face 2j in the axial direction D1, and a bottom surface 2m located on the opposite side to the end face 2j of the inner side surface 2k. The cylindrical member 6 is inserted and fixed in the area defined by the inner side surface 2k and the bottom surface 2m of the fixed part 2h.

[0029] The shape of the fixed part 2h as viewed along the axial direction D1 is non-circular. For example, the shape of the fixed part 2h as viewed along the axial direction D1 is rectangular with rounded corners. The fixed part 2h has a pair of first straight parts 2p extending parallel to each other, a pair of second straight parts 2q extending parallel to each other in a direction different from the first straight parts 2p, and four curved parts 2r that curve outwardly of the fixed part 2h between the first straight parts 2p and the second straight parts 2q. The cylindrical member 6 is fixed to the fixed part 2h, so that the container front part 2 engages with the cylindrical member 6 in the rotational direction (synchronously rotatable).

[0030] The application material M and the piston 4 are disposed on the inner surface 2s of the container front part 2. The inner surface 2s indicates the inner peripheral surface of a cylindrical hole penetrating the container front part 2 along the axial direction D1, and for example, the rear end of the inner surface 2s communicates with the fixed part 2h. The inner surface 2s is, for example, a smooth surface. This allows the movable body 5 and the piston 4 to smoothly push out the application material M.

[0031] The application material M is, for example, a volatile stick-shaped cosmetic material. The application material M is formed, for example, by directly filling the inner surface 2s of the container front part 2, and is contained inside the container front part 2 in a state of being in close contact with the inner surface 2s of the container front part 2. The application material M is hardened in a state of being in close contact with the inner surface 2s of the container front part 2.

[0032] The piston 4 is made of, for example, thermoplastic elastomers (TPE). The piston 4 has, for example, recesses 4b at one end and the other end in the axial direction D1. The recess 4b located on the front side is filled with the coating material M, and the movable body 5 is inserted into the recess 4b located on the rear side.

[0033] Fig. 5 is a perspective view showing a dispensing mechanism 20 of the applying material dispensing container 1 configured by assembling a movable body 5, a cylindrical member 6, and a female screw member 7. As shown in Fig. 3 and Fig. 5, the dispensing mechanism 20 includes a movable body 5 having a male screw 5h, a cylindrical member 6 through which the movable body 5 is inserted and which engages with the movable body 5 so as to be synchronously rotatable, and a cylindrical female screw member 7 into which the male screw 5h of the movable body 5 is screwed and coupled.

[0034] The female screw member 7 is made of, for example, polyacetal resin (POM resin). A protrusion 7c that engages with the container rear part 3 in the rotational direction and extends in the axial direction D1 is formed on the outer surface 7b of the female screw member 7. The female screw member 7 has, for example, a plurality of (four as an example) protrusions 7c, which are formed so as to be arranged at equal intervals in the circumferential direction of the female screw member 7. A female screw 7d is formed on the inner surface of the female screw member 7, and a male screw 5h of the movable body 5 is screwed into the female screw 7d.

[0035] The cylindrical member 6 is made of, for example, POM resin. A first protrusion 6c having elasticity in a radial direction D2 (see FIG. 7) of the cylindrical member 6 is provided on an outer surface 6b of the cylindrical member 6. The first protrusion 6c constitutes a ratchet mechanism 30 together with a second protrusion 3m of the container rear part 3, which will be described later. The configurations of the first protrusion 6c, the second protrusion 3m, and the ratchet mechanism 30 will be described in detail later.

[0036] The movable body 5 is made of, for example, POM resin. The movable body 5 is rod-shaped. The movable body 5 has a male screw portion 5b that screws into the female screw member 7 and an insertion portion 5c that is inserted into the cylindrical member 6. The insertion portion 5c is provided at the front of the movable body 5. The cross-sectional shape of the insertion portion 5c when cut along a plane perpendicular to the axial direction D1 is non-circular.

[0037] A protrusion 5d protruding in the axial direction D1 is formed at an end of the insertion portion 5c in the axial direction D1. The shape of the protrusion 5d as viewed along the axial direction D1 is, for example, an elliptical shape. The protrusion 5d is a portion that fits into the recess 4b of the piston 4. The protrusion 5d fits into the recess 4b, causing the movable body 5 to move forward together with the piston 4.

[0038] The shape of the insertion portion 5c as viewed along the axial direction D1 is non-circular. The insertion portion 5c has a pair of curved surfaces 5f that curve toward the outside of the movable body 5, and a pair of cut surfaces 5g that connect the ends of the pair of curved surfaces 5f. The curved surfaces 5f are curved, for example, in an arc shape. The cut surfaces 5g are, for example, in an arc shape with a portion of the arc-shaped portion cut off. As an example, the cut surfaces 5g are flat surfaces.

[0039] The male screw portion 5b has male screws 5h formed on one side and the other side in the width direction of the movable body 5, and a cut surface 5j formed between the pair of male screws 5h. The male screw 5h is provided, for example, behind the curved surface 5f of the insertion portion 5c, and the cut surface 5j is provided behind the cut surface 5g.

[0040] The movable body 5 configured as described above is inserted through the cylindrical member 6 and the female screw member 7, and engages with the cylindrical member 6 in the rotational direction. Since the male screw 5h is screwed into the female screw member 7, the movable body 5 advances relative to the female screw member 7 and the cylindrical member 6 in accordance with the relative rotation of the container front part 2 and the container rear part 3.

[0041] Fig. 6 is a cross-sectional perspective view of the container rear part 3. The container rear part 3 is made of, for example, ABS resin. As shown in Figs. 3 and 6, the container rear part 3 is tubular and extends in the axial direction D1. The container rear part 3 has an opening 3f on the inside of an end face 3b into which the dispensing mechanism 20 is inserted. An annular recess 3c and an annular protrusion 3d are formed on the inner surface 3g of the container rear part 3 near the opening 3f, with which the annular protrusion 2g of the container front part 2 engages in the axial direction D1.

[0042] The container rear part 3 has a cylindrical member engaging part 3h and a female screw member engaging part 3j formed on the inner surface 3g. A smooth (step-free) curved surface 3k that faces the outer circumferential surface of the container front part 2 is formed between the annular recess 3c of the container rear part 3 and the cylindrical member engaging part 3h. The cylindrical member engaging part 3h has a second protrusion 3m that engages with the cylindrical member 6 in the rotational direction. The container rear part 3 has, for example, a plurality of second protrusions 3m (eight, for example). The second protrusions 3m constitute a ratchet mechanism 30 together with the first protrusion 6c of the cylindrical member 6 described above.

[0043] A female screw member engaging portion 3j is provided behind the cylindrical member engaging portion 3h. The female screw member engaging portion 3j has a protrusion 3p with which the protrusion 7c of the female screw member 7 engages in the rotational direction. For example, the protrusion 3p protrudes from the second projection 3m toward the radially inner side of the container rear portion 3. The container rear portion 3 has, for example, a plurality of protrusions 3p, which are arranged at equal intervals along the circumferential direction of the container rear portion 3.

[0044] A movable body insertion portion 3r into which the movable body 5 is inserted is provided between the female screw member engagement portion 3j and the end portion 3q (rear end) in the axial direction D1 of the container rear portion 3. A convex portion 3t extending in the axial direction D1 is formed in the movable body insertion portion 3r. For example, the movable body insertion portion 3r has a plurality of convex portions 3t.

[0045] Fig. 7(a) is a perspective view of the cylindrical member 6 as viewed from one side (front side) in the axial direction D1. Fig. 7(b) is a perspective view of the cylindrical member 6 as viewed from the other side (rear side) in the axial direction D1. The cylindrical member 6 has a fixing portion 6d at one end in the axial direction D1 that is fixed to the fixed portion 2h of the container front part 2. The fixing portion 6d protrudes in the axial direction D1 at one end of the cylindrical member 6 in the axial direction D1.

[0046] The cylindrical member 6 has, for example, a flange portion 6h on the opposite side to the end face 6g of the cylindrical member 6 as seen from the fixing portion 6d. The fixing portion 6d also has an extension portion 6j located at one end of the cylindrical member 6 in the axial direction D1, and a base portion 6k located on the opposite side (the flange portion 6h side) to the end face 6g of the extension portion 6j. Since the fixing portion 6d has the extension portion 6j in this manner, it becomes possible to firmly fix the fixing portion 6d to the fixed portion 2h of the front part 2 of the container.

[0047] The shape of the fixing part 6d as viewed along the axial direction D1 is similar to that of the fixed part 2h of the container front part 2. That is, the shape of the fixing part 6d as viewed along the axial direction D1 is non-circular, for example, rectangular with rounded corners. The fixing part 6d has a pair of first straight parts 6m extending parallel to each other, a pair of second straight parts 6p extending parallel to each other in a direction different from the first straight parts 6m, and four curved parts 6q that curve outward of the fixing part 6d between the first straight parts 6m and the second straight parts 6p. The fixing part 6d formed as described above is inserted into the fixed part 2h of the container front part 2 along the axial direction D1 and fixed to the fixed part 2h. At this time, the flange part 6h of the cylindrical member 6 faces the rear end 2t (see FIG. 3) of the container front part 2 along the axial direction D1.

[0048] The cylindrical member 6 has a through hole 6r penetrating in the radial direction D2 of the cylindrical member 6 around the first protrusion 6c. The through hole 6r gives the first protrusion 6c elasticity in the radial direction D2 of the cylindrical member 6. The through hole 6r is defined by, for example, a first hole portion 6s extending in the axial direction D1 and a pair of second hole portions 6t extending in the circumferential direction of the cylindrical member 6 from one end and the other end of the first hole portion 6s, respectively.

[0049] The through hole 6r has a U-shape with a first hole portion 6s and a pair of second hole portions 6t aligned in the axial direction D1. The first protrusion 6c is formed at a position adjacent to the first hole portion 6s and between the pair of second hole portions 6t, so that the first protrusion 6c has elasticity in the radial direction D2 of the cylindrical member 6. The first protrusion 6c has, for example, an inclined surface 6w that protrudes obliquely upward continuously from the outer circumferential surface 6v of the cylindrical member 6, a top surface 6x that is located between the inclined surface 6w and the first hole portion 6s, and a wall surface 6y that defines the first hole portion 6s.

[0050] Fig. 8 is a cross-sectional perspective view of the cylindrical member 6. Fig. 9 is a cross-sectional view taken along line BB in Fig. 3. As shown in Figs. 8 and 9, the cylindrical member 6 has a cylindrical hole 6z through which the movable body 5 is inserted. The cylindrical hole 6z passes through the cylindrical member 6 along the axial direction D1. The cylindrical member 6 has a small diameter portion 6b1 that protrudes inward in the radial direction D2 of the cylindrical member 6.

[0051] The small diameter portion 6b1 indicates a portion of the cylindrical member 6 in which the inner diameter in the cylindrical hole 6z is smaller than other portions. The small diameter portion 6b1 is provided at one end (front end) of the cylindrical member 6 in the axial direction D1. The small diameter portion 6b1 is formed by a protruding portion 6b2 that protrudes inward in the radial direction D2 of the cylindrical member 6 in the cylindrical hole 6z. The cylindrical member 6 has, for example, two protruding portions 6b2, and the two protruding portions 6b2 face each other along the radial direction D2 of the cylindrical member 6.

[0052] The insertion portion 5c of the movable body 5 is inserted into the cylindrical hole 6z of the cylindrical member 6, and the insertion portion 5c inserted into the cylindrical hole 6z engages with the small diameter portion 6b1. At this time, the cut surfaces 5g and 5j of the insertion portion 5c face the inner surface 6b3 of the small diameter portion 6b1, and the insertion portion 5c engages with the inner surface 6b3 in the rotational direction, whereby the cylindrical member 6 and the movable body 5 are engaged to be synchronously rotatable.

[0053] The second protrusion 3m of the container rear part 3 that engages with the cylindrical member 6 is defined by, for example, an abutment surface 3m1 extending in the radial direction D2, a bottom surface 3m2 extending in the circumferential direction of the container rear part 3 outside the abutment surface 3m1 in the radial direction D2, and an inclined surface 3m3 extending in a direction inclined in the radial direction D2 from the side of the bottom surface 3m2 opposite to the abutment surface 3m1. The abutment surface 3m1 is a surface that a wall surface 6y of the first protrusion 6c of the cylindrical member 6 abuts against. The inclined surface 3m3 extends, for example, in a direction perpendicular to the adjacent abutment surface 3m1.

[0054] With the above configuration, the container rear part 3 rotates in one direction (clockwise in FIG. 9) relative to the cylindrical member 6 and the moving body 5. However, the container rear part 3 does not rotate in the other direction, which is the opposite direction, relative to the cylindrical member 6 and the moving body 5. In addition, the cylindrical hole 6z has a space 6b4 between the first protrusion 6c and the cut surfaces 5g, 5j of the moving body 5, which allows the first protrusion 6c to be displaced inward in the radial direction D2.

[0055] The position of the space 6b4 in the axial direction D1 is different from the position of the small diameter portion 6b1 in the axial direction D1. The space 6b4 is formed between the circular inner surface 6b5 of the cylindrical hole 6z and the cut surfaces 5g, 5j of the movable body 5 inserted into the cylindrical hole 6z. In this manner, in this embodiment, the space 6b4 between the inner surface 6b5 of the cylindrical hole 6z and the cut surfaces 5g, 5j of the movable body 5 can be effectively used as a region in which the first protrusion 6c is displaced in the radial direction D2.

[0056] Next, an example of a method of using the coating material dispensing container 1 will be described. First, as shown in Figures 2 and 3, the cap 10 is removed to expose the container front part 2. Then, when the container rear part 3 is rotated in one direction relative to the container front part 2, the female screw member 7 rotates together with the container rear part 3, and accordingly, the cylindrical member 6 and the moving body 5 rotate together with the container front part 2. Therefore, since the female screw member 7 rotates in one direction relative to the moving body 5, the male screw 5h and the female screw 7d engage with each other, and the moving body 5 advances relative to the female screw member 7.

[0057] When the movable body 5 advances relative to the female screw member 7, the piston 4 and the application material M advance together with the advancement of the movable body 5, and the application material M is dispensed from the container front part 2. When the container rear part 3 rotates in one direction relative to the container front part 2, as shown in Fig. 9, the container rear part 3 rotates in one direction (clockwise in Fig. 9) relative to the cylindrical member 6, and the container rear part 3 moves in that one direction while the inclined surface 3m3 of the container rear part 3 abuts against the inclined surface 6w of the cylindrical member 6.

[0058] At this time, the first protrusion 6c is bent inward in the radial direction D2 of the cylindrical member 6, and the end 6c1 on the inner side of the radial direction D2 of the first protrusion 6c enters the space 6b4. Then, when the container rear part 3 further rotates in one direction, the inclined surface 3m3 passes over the top surface 6x of the first protrusion 6c in that one direction, and the first protrusion 6c returns to its original bending state. When the inclined surface 3m3 passes over the top surface 6x, a clicking sound and a sense of resistance are generated, so that the user can dispense the application material M while making clicking sounds.

[0059] When the container rear part 3 rotates in the other direction relative to the container front part 2, the container rear part 3 tries to rotate in the other direction (counterclockwise in FIG. 9) relative to the cylindrical member 6. However, when the container rear part 3 tries to rotate in the other direction relative to the cylindrical member 6, the abutment surface 3m1 of the container rear part 3 comes into contact with the wall surface 6y of the cylindrical member 6, and the rotation of the container rear part 3 in the other direction is restricted. Therefore, the relative rotation of the container rear part 3 in the other direction relative to the container front part 2 is restricted.

[0060] Next, the effects and advantages obtained from the applying material dispensing container 1 according to this embodiment will be described in detail. As shown in Fig. 3 and Fig. 9, in the applying material dispensing container 1, a cylindrical container front part 2 and a cylindrical container rear part 3 are engaged so as to be capable of relative rotation. An applying material M is disposed inside the container front part 2, and a moving body 5 having a male screw 5h on its outer periphery is disposed behind the applying material M. A cylindrical female screw member 7 having a female screw 7d that screws into the male screw 5h of the moving body 5 is disposed inside the container rear part 3. When the container front part 2 and the container rear part 3 rotate relative to each other, the male screw 5h of the moving body 5 and the female screw 7d of the female screw member 7 screw together, and the moving body 5 advances relative to the female screw member 7, and the advancing moving body 5 pushes the applying material M disposed inside the container front part 2 forward, whereby the applying material M is dispensed from the container front part 2.

[0061] A cylindrical member 6 having a first protrusion 6c on an outer surface 6b is disposed between the container front part 2 and the female screw member 7 inside the container rear part 3. A through hole 6r is formed around the first protrusion 6c in the cylindrical member 6, and the through hole 6r provides the first protrusion 6c with elasticity in the radial direction D2. In other words, the first protrusion 6c is elastically deformable along the radial direction D2 of the cylindrical member 6.

[0062] A second protrusion 3m that engages with the first protrusion 6c in the rotational direction is formed on the inner surface 3g of the container rear part 3. The second protrusion 3m is constantly in contact with the first protrusion 6c, and constantly generates resistance between the cylindrical member 6 and the container rear part 3. The cylindrical member 6 has a small diameter part 6b1 that protrudes inward in the radial direction D2, and the moving body 5 inserted into a cylindrical hole 6z of the cylindrical member 6 engages with the small diameter part 6b1.

[0063] The movable body 5 has an insertion portion 5c that is inserted into the cylindrical hole 6z of the cylindrical member 6 and engages with the small diameter portion 6b1. The insertion portion 5c engages with the inner surface 6b3 of the small diameter portion 6b1 and has cut surfaces 5g, 5j that extend in the axial direction D1 in the cylindrical hole 6z. Between the first protrusion 6c in the cylindrical hole 6z and the cut surfaces 5g, 5j of the movable body 5, a space portion 6b4 is formed in which the first protrusion 6c can elastically deform inward in the radial direction D2. Therefore, the first protrusion 6c of the cylindrical member 6 engages with the inner side of the second protrusion 3m of the container rear part 3 in the radial direction D2, and the cut surfaces 5g, 5j of the movable body 5 are disposed inside the first protrusion 6c in the radial direction D2, so that the length of the cylindrical member 6 in the axial direction D1 can be reduced.

[0064] Therefore, by disposing a tubular member 6 having a short length in the axial direction D1, it is possible to fill the application material M that is long in the axial direction D1, and therefore it is possible to fill a larger amount of the application material M. Furthermore, by restricting the length in the axial direction D1 of the tubular member 6 that engages with each of the container rear part 3 and the movable body 5, the application material dispensing container 1 can be made compact.

[0065] Fig. 10 is a cross-sectional view showing a state in which the applying material M of the applying material dispensing container 1 has been dispensed and the movable body 5 has been moved to its forward limit. Figs. 11(a) and 11(b) are cross-sectional views showing an applying material dispensing container 100 according to a comparative example. The applying material dispensing container 100 according to the comparative example has a container front part 2, container rear part 3, piston 4, movable body 5 and cap 10 similar to those of the applying material dispensing container 1, but differs from the applying material dispensing container 1 in the parts disposed inside the container front part 2 and container rear part 3.

[0066] The applying material dispensing container 100 includes a cylindrical female screw member 101 housed inside the container front part 2, instead of the cylindrical member 6 and the female screw member 7 of the applying material dispensing container 1, and a spring member 102 that engages with the female screw member 101 at the rear part of the female screw member 101 in a ratchet manner. The spring member 102 is cylindrical with both ends open. A spiral spring part 102b that contracts in the axial direction D3 of the spring member 102 to absorb impact is formed in the axial direction intermediate part of the spring member 102. The applying material dispensing container 100 according to the comparative example requires an area to be secured inside the container rear part 3 in which the spring member 102 that expands and contracts in the axial direction D3 is disposed, and therefore there is a problem that the applying material M that is long in the axial direction D3 cannot be filled.

[0067] In contrast, the application material dispensing container 1 according to this embodiment includes a moving body 5, a cylindrical member 6, and a female screw member 7, and the cylindrical member 6 has a cylindrical hole 6z in which a small diameter portion 6b1 is formed with which the insertion portion 5c of the moving body 5 engages. A space portion 6b4 is formed between the first protrusion 6c in the cylindrical hole 6z and the cut surfaces 5g and 5j of the moving body 5, in which the first protrusion 6c can elastically deform inward in the radial direction D2. Therefore, the first protrusion 6c of the cylindrical member 6 engages with the inner side of the second protrusion 3m of the container rear portion 3 in the radial direction D2, and the cut surfaces 5g and 5j of the moving body 5 are disposed inside the first protrusion 6c in the radial direction D2, so that the length of the cylindrical member 6 in the axial direction D1 can be reduced. By disposing the cylindrical member 6 having a small length in the axial direction D1 in this manner, the application material M that is long in the axial direction D1 can be filled. Therefore, the applying material dispensing container 1 can be filled with a larger amount of applying material M than the applying material dispensing container 100 according to the comparative example while maintaining a compact state without increasing the size of the container.

[0068] The cylindrical member 6 according to this embodiment has a fixing portion 6d fixed to the container front part 2, and the cross section of the fixing portion 6d perpendicular to the axial direction D1 is noncircular, and the container front part 2 has a fixed part 2h to which the fixing portion 6d is fixed, and the cross section of the fixed part 2h perpendicular to the axial direction D1 is similar to the cross section of the fixing portion 6d perpendicular to the axial direction D1. Therefore, when the fixing portion 6d of the cylindrical member 6 is fixed to the fixed part 2h of the container front part 2, the fixing portion 6d fits into the noncircular fixed part 2h, so that the cylindrical member 6 can be engaged with the container front part 2 so as to be synchronously rotatable.

[0069] As shown in Fig. 3, the application material M according to this embodiment is hardened in a state of being in close contact with the inner surface 2s of the container front part 2. Therefore, since the application material M is in close contact with the inner surface 2s of the container front part 2, even a soft application material M can be more reliably protected by the container front part 2. In other words, breakage of the application material M inside the container front part 2 can be more reliably suppressed.

[0070] 9, in this embodiment, the first protrusion 6c and the second protrusion 3m constitute a ratchet mechanism 30 that allows relative rotation in one direction between the container front part 2 and the container rear part 3 and restricts relative rotation in the other direction that is the opposite direction to the one direction. Thus, the moving body 5 advances due to the relative rotation in one direction between the container front part 2 and the container rear part 3, and the relative rotation in the other direction is restricted by the ratchet mechanism 30. Therefore, it is possible to restrict the relative rotation in the other direction between the container front part 2 and the container rear part 3, as well as unintended retreat of the application material M and the moving body 5.

[0071] In this embodiment, the first protrusion 6c is constantly in contact with the second protrusion 3m, generating constant resistance between the cylindrical member 6 and the container rear portion 3. In this manner, when the first protrusion 6c protruding from the outer surface 6b of the cylindrical member 6 and the second protrusion 3m protruding from the inner surface 3g of the container rear portion 3 are constantly in contact with each other, it is possible to constantly generate resistance between the cylindrical member 6 and the container rear portion 3, thereby suppressing rattling between the cylindrical member 6 and the container rear portion 3.

[0072] The above describes the embodiment of the coating material dispensing container according to the present disclosure. However, the coating material dispensing container according to the present disclosure is not limited to the above embodiment, and may be modified within the scope of the gist described in each claim and may be used for other purposes. In other words, the configuration, shape, size, material, and arrangement of each part constituting the coating material dispensing container may be appropriately modified within the scope of the above gist.

[0073] For example, in the above embodiment, the small diameter portion 6b1 is formed by the protruding portion 6b2 that protrudes inward in the radial direction D2 of the cylindrical member 6 in the cylindrical hole 6z, and the cylindrical member 6 has two protruding portions 6b2. However, the number of small diameter portions and protruding portions of the cylindrical member may be one or three or more, and can be changed as appropriate.

[0074] For example, in the above embodiment, a description has been given of the applying material dispensing container 1 that is capable of relative rotation in one direction and only dispenses the applying material M. However, the applying material dispensing container according to the present disclosure may be a applying material dispensing container that is capable of relative rotation in both one direction and the direction opposite to the one direction.

[0075] Furthermore, in the above embodiment, an example was described in which the application material M was a volatile stick-shaped cosmetic material. However, the application material according to the present disclosure may be an application material other than a cosmetic material. The application material according to the present disclosure may be a lip gloss, lipstick, eye color, eyeliner, or stationery (drawing material) such as a marking pen, a medicine, or an application material containing a mud-like substance, and these application materials can also be applied to the application material dispensing container according to the present disclosure. [Explanation of symbols]

[0076] Reference Signs List 1...appliance material dispensing container, 2...container front portion, 2b...opening, 2c...tapered surface, 2d...convex portion, 2f...flange portion, 2g...annular convex portion, 2h...fixed portion, 2j...end surface, 2k...inner surface, 2m...bottom surface, 2p...first straight portion, 2q...second straight portion, 2r...curved portion, 2s...inner surface, 2t...rear end, 3...container rear portion, 3b...end surface, 3c...annular recess portion, 3d...annular convex portion, 3f...opening, 3g...inner surface, 3h...cylindrical member Engagement portion, 3j... female screw member engagement portion, 3k... curved surface, 3m... second protrusion, 3m1... abutment surface, 3m2... bottom surface, 3m3... inclined surface, 3p... convex portion, 3q... end portion, 3r... movable body insertion portion, 3t... convex portion, 4... piston, 4b... concave portion, 5... movable body, 5b... male screw portion, 5c... insertion portion, 5d... convex portion, 5f... curved surface, 5g... cut surface, 5h... male screw, 5j... cut surface, 6... cylindrical member, 6b... outer surface , 6b1...Small diameter part, 6b2...Protrusion part, 6b3...Inner surface, 6b4...Space part, 6b5...Inner surface, 6c...First protrusion, 6c1...End part, 6d...Fixed part, 6g...End face, 6h...Flange part, 6j...Extended part , 6k...root part, 6m...first straight part, 6p...second straight part, 6q...curved part, 6r...through hole, 6s...first hole part, 6t...second hole part, 6v...outer surface, 6w...slanted surface, 6x...top surface, 6y...wall surface, 6z...tube bore, 7...female screw member, 7b...outer surface, 7c...convex portion, 7d...female screw, 10...cap, 11...outer cap, 11c...annular recess, 11d...annular protrusion, 11f...inner surface, 11g...recess, 11h...end surface, 12...inner cap, 12b...annular protrusion, 12d...insertion portion, 20...feed-out mechanism, 30...ratchet mechanism, D1...axial direction, D2...radial direction, D3...axial direction, M...coating material.

Claims

1. The container has a cylindrical front portion, a cylindrical rear portion that is rotatable relative to the front portion, a movable body that is disposed on the rear side of a coating material that is located inside the front portion and has a male screw on its outer periphery, and a cylindrical female screw member that is located inside the rear portion and has a female screw on its inner periphery that screws into the male screw, A coating material dispensing container in which the coating material is dispensed from the front of the container by a screwing action between the male screw and the female screw, and the movable body advances relative to the female screw member as the front of the container and the rear of the container rotate relative to each other, a cylindrical member disposed inside the rear portion of the container between the front portion of the container and the female screw member; the cylindrical member has a fixing portion fixed to the front portion of the container, a first protrusion is provided on an outer surface of the cylindrical member rearward of the fixing portion, a second protrusion that engages with the first protrusion in a rotational direction of the rear portion of the container is provided on an inner surface of the rear portion of the container; the first protrusion has elasticity in the radial direction due to a through hole that penetrates the cylindrical member in the radial direction around the first protrusion, the cylindrical member has a small diameter portion that protrudes radially inward of the cylindrical member and engages with the movable body, the movable body has an insertion portion that is inserted into the cylindrical hole of the cylindrical member and engages with the small diameter portion, the insertion portion has a cut surface that engages with an inner surface of the small diameter portion and extends in an axial direction of the cylindrical hole in the cylindrical hole, the cylindrical hole has a space between the first protrusion and the cut surface, in which the first protrusion can be displaced radially inward; A container for dispensing coating material.

2. A cross section of the fixing portion perpendicular to the axial direction is non-circular, the container front portion has a fixed portion to which the fixing portion is fixed, a cross-sectional shape of the fixed portion perpendicular to the axial direction is similar to a cross-sectional shape of the fixing portion perpendicular to the axial direction, The cylindrical member has a fixing portion at a front end in the axial direction, the container front portion has a fixed portion to which the fixing portion is fixed at a rear end in the axial direction, The fixing portion is engaged with the fixed portion in the axial direction and the rotational direction. The coating material dispensing container according to claim 1.

3. The coating material is hardened in a state of being in close contact with the inner surface of the front part of the container.

3. The coating material dispensing container according to claim 1 or 2.

4. the first protrusion and the second protrusion constitute a ratchet mechanism that allows relative rotation in one direction between the container front portion and the container rear portion and restricts relative rotation in another direction that is the opposite direction to the one direction. The coating material dispensing container according to any one of claims 1 to 3.

5. the first protrusion constantly contacts the second protrusion to constantly generate resistance between the cylindrical member and the rear portion of the container; The coating material dispensing container according to any one of claims 1 to 4.

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