Drawing material container cartridge and drawing material container set

The drawing material container cartridge addresses the complexity and aesthetic issues of existing cartridges by using a single locking portion for both the container body and the cartridge cap, resulting in a simplified and aesthetically improved design.

JP2025056620APending Publication Date: 2025-04-08TOKIWA CORP
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Patent Information

Application Number
JP2023166206
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-27
Publication Date
2025-04-08

AI Technical Summary

Technical Problem

The existing drawing material container cartridges have a complex structure due to the separate locations of the annular step portion for the temporary cap and the fitting projection portion for the container body, leading to aesthetic issues with exposed uneven portions.

Method used

The proposed solution involves a drawing material container cartridge with a simplified structure, where the cartridge body has a first locking portion that serves both to lock the container body and the cartridge cap, reducing the number of uneven surfaces and enhancing aesthetics.

Benefits of technology

The simplified structure of the cartridge body reduces complexity and improves aesthetics by minimizing exposed uneven portions, while ensuring reliable attachment and locking mechanisms.

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Abstract

To provide a drawing material container cartridge and a drawing material container set, the cartridge and the set having a structure that can be simplified and good appearance that can be made to be excellent.SOLUTION: A drawing material container cartridge 10 includes: a cartridge body 11 that includes a cylinder part 11b for housing a drawing material M and is inserted into a container body along an axis direction D1, which is a direction in which the axis line L of the cylinder part 11b extends, to be detachably mounted on the container body; and a cartridge cap 15 that is mounted on the cartridge body 11 by the cylinder part 11b being inserted along the axis direction D1. The cartridge body 11 includes a first engagement part 11s that engages with the container body in an axis direction D1 when being mounted on the container body. The cartridge cap 15 includes a second engagement part 15g that engages with the first engagement part 11s in the axis direction D1 when being mounted on the cartridge body 11.SELECTED DRAWING: Figure 8
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Description

[Technical field]

[0001] The present disclosure relates to a drawing material container cartridge and a drawing material container set. [Background technology]

[0002] Patent Document 1 describes a cosmetic container equipped with a cartridge. The cartridge has a front tube, a rod body, a guide rod, and an O-ring. The front tube has an exposed portion and a rotating portion. At the tip of the exposed portion, an opening hole through which the stick-shaped cosmetic material emerges and retracts, and an annular step portion for attaching a temporary cap are formed. The annular step portion is formed slightly below the opening hole. The annular step portion is the portion where the temporary cap is attached.

[0003] The rotating portion extends downward from the exposed portion. The rotating portion is removably mounted within the container body and rotates relative to the container body. An engaging protrusion is formed on the outer periphery of the rotating portion. The engaging protrusion engages with an annular engaging recess formed on the inner periphery of the container body. The engaging protrusion is the portion to which the container body is mounted. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2000-217635 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned cartridge, the annular step portion on which the temporary cap is attached and the fitting protrusion portion on which the container body is attached are formed at different positions. This cartridge has a problem that the configuration is complicated because the annular step portion on which the temporary cap is attached and the fitting protrusion portion on which the container body is attached are formed. Furthermore, when the annular step portion and the fitting protrusion portion are provided, the exposed uneven portion increases, so there is room for improvement in terms of aesthetics.

[0006] An object of the present disclosure is to provide a drawing material container cartridge and a drawing material container set that can be simplified in configuration and have a good aesthetic appearance. [Means for solving the problem]

[0007] (1) The drawing material container cartridge according to the present disclosure includes a cartridge body having a tubular portion for accommodating a drawing material and being detachably attached to the container body by being inserted into the container body along an axial direction, which is the direction in which the axis of the tubular portion extends, and a cartridge cap attached to the cartridge body by being inserted along the axial direction. The cartridge body has a first locking portion that axially locks with the container body when attached to the container body. The cartridge cap has a second locking portion that axially locks with the first locking portion when attached to the cartridge body.

[0008] This drawing material container cartridge includes a cartridge body and a cartridge cap attached to the cartridge body. The cartridge body has a tubular portion that accommodates the drawing material, and the tubular portion is inserted into the cartridge cap along the axial direction. The cartridge body is attached to the container body by being inserted into the container body. The cartridge body has a first locking portion, and the first locking portion locks to the container body in the axial direction. The cartridge cap has a second locking portion, and the second locking portion locks to the first locking portion of the cartridge body in the axial direction. Thus, the first locking portion of the cartridge body is a portion that locks to the container body, and is also a portion that locks to the second locking portion of the cartridge cap. Therefore, the first locking portion of the cartridge body can be commonly used as a portion that locks to the container body and a portion that locks to the cartridge cap. That is, since the portion that locks to the container body and the portion that locks to the cartridge cap are formed as the first locking portion, the configuration of the cartridge body can be simplified. By using the first locking portion both as the part that locks onto the container body and as the part that locks onto the cartridge cap, it is possible to reduce the number of protruding and recessed parts of the cartridge body, thereby improving the aesthetic appearance of the cartridge body.

[0009] (2) In the above (1), the cartridge body may have an insertion portion that is inserted into the container body. The first locking portion may be a step that expands in diameter from the insertion portion, and the step may contact the container body when the cartridge body is attached to the container body. In this case, the cartridge cap can be more securely attached to the cartridge body by locking onto the step. Since the first locking portion is a step, the configuration of the first locking portion can be simplified, which contributes to further simplifying the configuration.

[0010] (3) In the above (1) or (2), the tubular portion may have an inclined surface that is inclined with respect to the axial direction so that the diameter of the tubular portion increases as it moves away from the opening through which the drawing material is exposed in the axial direction. In this case, the inclined surface of the tubular portion that is inserted into the cartridge cap decreases in diameter as it moves toward the opening. This makes it easy to insert the cartridge body into the cartridge cap.

[0011] (4) In any of the above (1) to (3), the cartridge cap may have an inner surface extending along the axial direction, a bottom portion located at one axial end of the inner surface, and a contact prevention portion formed on the inner surface to prevent the inner surface from contacting the bottom portion of the cylindrical portion. In this case, the contact prevention portion formed on the inner surface of the cartridge cap prevents the drawing material from contacting the bottom portion of the cylindrical portion that contains the drawing material. Therefore, it is possible to prevent the drawing material from contacting the inner surface of the cartridge cap.

[0012] (5) The drawing material container set according to the present disclosure includes the drawing material container cartridge described above and a container body to which the cartridge body of the drawing material container cartridge is detachably attached. In this drawing material container set, the cartridge body of the drawing material container cartridge described above is detachably attached to the container body. Therefore, similar to the drawing material container cartridge described above, the configuration can be simplified and the aesthetic appearance can be improved. Effect of the Invention

[0013] According to the present disclosure, the configuration can be simplified and the aesthetic appearance can be improved. [Brief description of the drawings]

[0014] [Figure 1] 1(a) is a side view showing an example of a drawing material container, and (b) is a side view showing a state in which a cap is removed from the drawing material container of FIG. [Diagram 2] 2 is a cross-sectional view taken along line AA in FIG. 1. [Diagram 3] 1 is a front view showing a cartridge body and a drawing material of a drawing material container cartridge according to an embodiment. FIG. [Figure 4] FIG. 4 is a cross-sectional view showing the cartridge body of FIG. [Diagram 5] FIG. 2 is a perspective view showing a movable body of the drawing material container cartridge according to the embodiment. [Figure 6] 1 is a cross-sectional view showing a cartridge body, a movable body, a drawing material, and a container body of a drawing material container cartridge according to an embodiment. [Figure 7] 7(a) is a perspective view showing a screw barrel of a drawing material container cartridge according to an embodiment, and (b) is a cross-sectional view showing the screw barrel of FIG. [Figure 8] 8(a) is a side view showing the drawing material container cartridge according to the embodiment, and FIG.8(b) is a partial cross-sectional view showing the drawing material container cartridge of FIG.8(a). [Figure 9] 9 is an enlarged cross-sectional view of a first locking portion and a second locking portion in the drawing material container cartridge of FIG. 8(b). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the drawing material container cartridge and drawing material container set 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 descriptions are omitted as appropriate. The drawings may be partially simplified or exaggerated for ease of understanding, and the dimensional ratios and the like are not limited to those shown in the drawings.

[0016] In the present disclosure, the term "drawing material" refers to an object used for drawing on an object to be drawn on. The "drawing material" may be a coating material that is applied to a coating target portion to be coated. The "drawing material" is, for example, a cosmetic product. The "cosmetic product" is, for example, an eyebrow product, an eyeliner, a lipstick, a lip liner, a lip gloss, a beauty stick, or a concealer.

[0017] FIG. 1(a) is a side view showing a drawing material container 1 according to this embodiment. FIG. 1(b) is a side view showing a state in which a cap 2 of the drawing material container 1 is removed from the drawing material container 1. In this embodiment, the drawing material container 1 will be described as an example of a drawing material container. As shown in FIG. 1(a) and FIG. 1(b), the drawing material container 1 includes a cap 2, a container body 3, and a cartridge body 11 of a drawing material container cartridge 10.

[0018] Fig. 2 is a cross-sectional view taken along line AA in Fig. 1(a). As shown in Fig. 1(a), Fig. 1(b) and Fig. 2, the cap 2 has a bottomed tubular shape (e.g., a bottomed cylindrical shape). The container body 3 has, for example, an inner tube 4 into which the cartridge body 11 and the screw tube 12 of the drawing material container cartridge 10 are inserted, and an outer tube 5 into which a part of the inner tube 4 is housed.

[0019] In the drawing material container 1, some of the parts are cylindrical, including the cap 2, the inner tube 4, and the outer tube 5. In the drawing material container 1, when the parts are assembled, the directions in which the axes L of the multiple cylindrical parts extend are the same. Hereinafter, the direction in which the axis L extends is referred to as the axial direction D1. For example, the axial direction D1 is the same as the longitudinal direction of the drawing material container 1.

[0020] "Front", "front side", and "forward" refer to the direction from the container body 3 to the cap 2 in the axial direction D1, and "rear", "rear side", and "rearward" refer to the direction from the cap 2 to the container body 3 in the axial direction D1. "Radial direction" refers to the direction toward the axis L or away from the axis L in a plane perpendicular to the axis L. "Radial outer side" refers to the radial direction away from the axis L, and "radial inner side" refers to the radial direction toward the axis L. "Circumferential direction" refers to the direction (rotation direction) along a ring centered on the axis L. In this embodiment, the direction in which the drawing material is fed is the forward direction (advancing direction), and the opposite direction is the rearward direction.

[0021] The drawing material container 1 has a rod shape extending along the axial direction D1. The drawing material container 1 dispenses the drawing material M. For example, the drawing material container 1 is a pen-type container that dispenses (pushes out) the drawing material M contained inside the drawing material container 1. The drawing material M is, for example, solid. In this embodiment, the drawing material M is a rod-shaped cosmetic material extending along the axial direction D1. As an example, the drawing material M may be an eyebrow cream, in which case the drawing material container 1 is an eyebrow application container.

[0022] For example, the outer cylinder 5 has a bottomed cylindrical shape. The outer cylinder 5 has, for example, a first protrusion 5b that protrudes from the inner surface of the outer cylinder 5 toward the radial inside of the outer cylinder 5 and extends along the axial direction D1, and a second protrusion 5c that protrudes from the inner surface of the outer cylinder 5 toward the radial inside of the outer cylinder 5 and is located in front of the first protrusion 5b.

[0023] For example, the outer cylinder 5 has a plurality of first convex portions 5b and a plurality of second convex portions 5c, and the plurality of first convex portions 5b and the plurality of second convex portions 5c are arranged along the circumferential direction of the outer cylinder 5. For example, the height of the second convex portion 5c toward the radial inside is lower than the height of the first convex portion 5b toward the radial inside. The second convex portion 5c is a portion with which the screw tube 12 engages in the circumferential direction. The outer cylinder 5 has a first annular recess 5d recessed toward the radial outside of the outer cylinder 5 at the front end of the outer cylinder 5, and a second annular recess 5f recessed toward the radial outside of the outer cylinder 5 behind the first annular recess 5d. The first annular recess 5d and the second annular recess 5f are portions with which the inner cylinder 4 engages.

[0024] For example, the inner cylinder 4 has an insertion portion 4b that is inserted into the outer cylinder 5, and an exposed portion 4c that protrudes forward from the outer cylinder 5. The insertion portion 4b has a spring portion 4f that has elasticity in the axial direction D1 due to the formation of a spiral slit 4d, and an engagement portion 4g that is located forward of the spring portion 4f and engages with the inner surface of the outer cylinder 5.

[0025] The engagement portion 4g includes a first annular protrusion 4h protruding from the outer peripheral surface of the inner tube 4 toward the radially outward side of the inner tube 4, and a second annular protrusion 4j protruding from the outer peripheral surface of the inner tube 4 toward the radially outward side of the inner tube 4 behind the first annular protrusion 4h. The first annular protrusion 4h engages with a first annular recess 5d of the outer tube 5, and the second annular protrusion 4j engages with a second annular recess 5f of the outer tube 5. The inner tube 4 engages with the outer tube 5 so as to be immovable in the axial direction and synchronously rotatable. The exposed portion 4c has a cylindrical shape. The inner tube 4 has a protrusion 4k with which the cap 2 engages on the outer peripheral surface of the exposed portion 4c.

[0026] Next, a description will be given of the cartridge body 11, the screw tube 12, and the moving body 13 of the drawing material container cartridge 10 that is attached to the container body 3. The cartridge body 11, the screw tube 12, and the moving body 13 are detachable from the container body 3. The drawing material container cartridge 10 has, for example, a cartridge body 11 having a tube portion 11b that accommodates the drawing material M, a screw tube 12 having a portion that is inserted into the cartridge body 11, and a moving body 13 that moves inside the screw tube 12 along the axial direction D1 relative to the screw tube 12.

[0027] Fig. 3 is a front view showing the cartridge body 11 as seen from the front. As shown in Fig. 1(b), Fig. 2 and Fig. 3, the cartridge body 11 is a front tube located at the front side of the drawing material container 1. The tube portion 11b has an opening 11c through which the drawing material M is exposed, and an inclined surface 11r that is inclined with respect to the axial direction D1 so that the diameter of the tube portion 11b increases as it moves away from the opening 11c in the axial direction D1.

[0028] The cartridge body 11 is detachably attached to the container body 3 by being inserted into the container body 3 along an axial direction D1, which is the direction in which the axis L of the cylindrical portion 11b extends. The opening 11c is defined, for example, by a front end 11d of the cartridge body 11, a first extending portion 11f that curves and bulges from the front end 11d and extends rearward, and a second extending portion 11g that extends obliquely rearward from the rear end of the first extending portion 11f.

[0029] When viewed from the front, the opening 11c has a non-circular shape. When viewed from the front, the opening 11c extends in a long axis direction D2 that intersects with the axial direction D1 and a short axis direction D3 that intersects with both the axial direction D1 and the long axis direction D2. The length of the opening 11c in the long axis direction D2 is longer than the length of the opening 11c in the short axis direction D3.

[0030] When viewed from the front, the opening 11c has a first protruding portion 11h protruding in the long axis direction D2, a second protruding portion 11j protruding in the short axis direction D3, and a corner portion 11k protruding radially inward of the tubular portion 11b between the first protruding portion 11h and the second protruding portion 11j. For example, the opening 11c has a pair of first protruding portions 11h aligned along the long axis direction D2 and a pair of second protruding portions 11j aligned along the short axis direction D3.

[0031] The first protrusion 11h protrudes in the long axis direction D2 from a pair of corners 11k aligned along the short axis direction D3. For example, the first protrusion 11h has a V-shape with rounded corners. The second protrusion 11j protrudes in the short axis direction D3 from a pair of corners 11k aligned along the long axis direction D2. For example, the second protrusion 11j has an arc shape.

[0032] For example, the cross section of the drawing material M has a non-circular shape when cut along a plane perpendicular to the axis L. More specifically, the cross section of the drawing material M has an oval shape (or an elliptical shape) having a major axis extending in the major axis direction D2 and a minor axis extending in the minor axis direction D3 when cut along a plane perpendicular to the axis L.

[0033] For example, the shape of the drawing material M as viewed from the front is the same as the shape of a cross section of the drawing material M when cut along a plane perpendicular to the axis L. When viewed along the minor axis direction D3, the drawing material M has a front end M1 and a curved portion M2 that curves from the front end M1 toward the major axis direction D2 and rearward to bulge outward of the drawing material M.

[0034] The external shape of the tube portion 11b as viewed from the front is, for example, a circular shape. For example, the tube portion 11b has a one-side holding portion 11m that holds the drawing material M from one side in the long axis direction D2, and a cylindrical holding portion 11p that extends rearward from the one-side holding portion 11m and holds the drawing material M from both the long axis direction D2 and the short axis direction D3.

[0035] In the one-side holding portion 11m, at least one side portion in the long axis direction D2 of the drawing material M is exposed, and in the cylindrical holding portion 11p, the drawing material M is not exposed. The shape of the one-side holding portion 11m as viewed from the front is, for example, U-shaped. The shape of the cartridge body 11 when cut along a plane perpendicular to the axial direction D1 transitions from a non-circular shape to a circular shape from the one-side holding portion 11m toward the rear.

[0036] The cartridge body 11 has an insertion portion 11q that is inserted into the container body 3. For example, the insertion portion 11q has a cylindrical shape. The cartridge body 11 has a first locking portion 11s that locks with the container body 3 in the axial direction D1 when the cartridge body 11 is attached to the container body 3. The first locking portion 11s is located, for example, at the rear end of the inclined surface 11r.

[0037] For example, the first locking portion 11s is located at the portion where the cartridge body 11 has the widest diameter (the portion where the diameter of the cartridge body 11 is the largest). For example, the first locking portion 11s is a step 11t that expands in diameter from the insertion portion 11q. That is, the step 11t protrudes from the insertion portion 11q to the outside in the radial direction of the cartridge body 11. The step 11t comes into contact with the container body 3 (the inner cylinder 4) when the cartridge body 11 is attached to the container body 3.

[0038] Fig. 4 is a cross-sectional view of the cartridge body 11 cut by a plane extending in both the axial direction D1 and the long axis direction D2. As shown in Fig. 4, the cartridge body 11 (insertion portion 11q) has, for example, an elastic deformation portion 11w that elastically deforms in the radial direction of the cartridge body 11. For example, the cartridge body 11 has a pair of elastic deformation portions 11w, and the pair of elastic deformation portions 11w are aligned along the radial direction of the cartridge body 11.

[0039] The elastic deformation portion 11w is formed in a region surrounded by, for example, a pair of first slits 11w1 extending in the axial direction D1 and aligned along the circumferential direction of the cartridge body 11, and a second slit 11w2 connecting the front ends of the pair of first slits 11w1 to each other. Each of the first slits 11w1 and the second slits 11w2 penetrates the cartridge body 11 in the radial direction. By having the elastic deformation portion 11w in the cartridge body 11, the cartridge body 11 can be easily assembled to the container body 3.

[0040] The cartridge body 11 has a hole 11x recessed radially outward from the cartridge body 11 at the rear side of the inner surface of the cartridge body 11, and a protrusion 11y located at the rear of the hole 11x. The hole 11x, for example, penetrates the cartridge body 11 in the radial direction. The hole 11x and the protrusion 11y are portions with which the screw tube 12 engages in the axial direction D1. By engaging the screw tube 12 with the hole 11x and the protrusion 11y, the screw tube 12 engages with the cartridge body 11 so as to be immovable in the axial direction D1 but rotatable relative thereto.

[0041] The cartridge body 11 has a recess 11v recessed radially outward on the inner surface of the cartridge body 11. The recess 11v has, for example, a rectangular shape having long sides extending along the axial direction D1 and short sides extending along the circumferential direction of the cartridge body 11.

[0042] For example, the cartridge body 11 has two recesses 11v, and the two recesses 11v are aligned along the radial direction of the cartridge body 11. The recesses 11v are portions with which the movable body 13 engages in the circumferential direction. By the movable body 13 engaging with the recesses 11v in the circumferential direction, the movable body 13 engages with the cartridge body 11 so as to be synchronously rotatable.

[0043] 5 is a perspective view showing the movable body 13. As shown in FIG. 2 and FIG. 5, the movable body 13 has a drawing material holding portion 13b that holds the drawing material M, and a screw portion 13c that extends rearward from the drawing material holding portion 13b. The drawing material holding portion 13b holds a rear portion of the drawing material M. For example, the drawing material holding portion 13b has a base portion 13d and a grip portion 13f that extends from the base portion 13d to the opposite side to the screw portion 13c.

[0044] For example, the movable body 13 has a round bar shape. The base 13d is located at the front end of the screw portion 13c. The base 13d has a protrusion 13g that protrudes radially outward from the movable body 13 and extends in the circumferential direction of the movable body 13. The protrusion 13g is a portion that engages with a recess 11v (see FIG. 4) of the cartridge body 11.

[0045] The projection 13g engages with the recess 11v, whereby the movable body 13 engages with the cartridge body 11 so as to be synchronously rotatable. For example, the base 13d has a pair of projections 13g, which are aligned along the radial direction of the movable body 13. The gripping portion 13f has, for example, a pair of arms 13h that extend forward from the base 13d and in the circumferential direction of the movable body 13.

[0046] 6 is a cross-sectional view showing the container body 3, the cartridge body 11, the movable body 13, and the drawing material M taken along a plane extending in both the long axis direction D2 and the short axis direction D3. As shown in FIGS. 2, 5, and 6, the gripping portion 13f grips the drawing material M by sandwiching the drawing material M between a pair of arm portions 13h. The arm portions 13h have, for example, protrusions 13j that protrude radially inward from the movable body 13.

[0047] For example, the protruding portion 13j is a portion that bites into the drawing material M. In the gripping portion 13f, the protruding portion 13j bites into the drawing material M, thereby enabling the gripping portion 13f to firmly hold the drawing material M. The protruding portion 13j has a plurality of (for example, two) protrusions 13k that extend in the axial direction D1 and are aligned along the circumferential direction of the movable body 13.

[0048] The movable body 13 is movable along the axial direction D1 relative to the screw tube 12 while being inserted inside the screw tube 12. When the movable body 13 moves forward relative to the screw tube 12, the drawing material M is advanced from the opening 11c of the cartridge body 11, and when the movable body 13 moves backward relative to the screw tube 12, the drawing material M is retracted into the opening 11c. The screw portion 13c is a portion that is inserted into the screw tube 12, and has a male screw 13m that screws into the screw tube 12 inside the screw tube 12.

[0049] Fig. 7(a) is a perspective view showing the screw tube 12. Fig. 7(b) is a cross-sectional view of the screw tube 12 cut along a plane extending in the axial direction D1. As shown in Fig. 2, Fig. 7(a) and Fig. 7(b), the screw tube 12 has an engagement portion 12b that engages with the inner surface of the container body 3 (outer tube 5) and an insertion portion 12c that is located in front of the engagement portion 12b and is inserted into the cartridge body 11.

[0050] For example, the engaging portion 12b has a convex portion 12d that protrudes radially outward from the screw tube 12. The convex portion 12d circumferentially engages with a second convex portion 5c formed on the inner surface of the outer tube 5. The convex portion 12d circumferentially engages with the second convex portion 5c, whereby the screw tube 12 engages with the container body 3 (outer tube 5) so as to be synchronously rotatable. For example, the engaging portion 12b has a plurality of convex portions 12d, which are arranged along the circumferential direction of the screw tube 12.

[0051] For example, the screw tube 12 has a flange portion 12f located between the engagement portion 12b and the insertion portion 12c. The insertion portion 12c is a portion extending forward from the flange portion 12f, and has, for example, a cylindrical shape. The insertion portion 12c has, for example, an elastic deformation portion 12g that elastically deforms in the radial direction of the screw tube 12. For example, the screw tube 12 has a pair of elastic deformation portions 12g, and the pair of elastic deformation portions 12g are aligned along the radial direction of the screw tube 12.

[0052] The elastic deformation portion 12g is formed, for example, in a region surrounded by a pair of first slits 12g1 extending in the axial direction D1 and aligned along the circumferential direction of the screw tube 12, and a second slit 12g2 connecting rear ends of the pair of first slits 12g1 to each other. Each of the first slits 12g1 and the second slits 12g2 penetrates the screw tube 12 in the radial direction. For example, the elastic deformation portion 12g has a protrusion 12g3 protruding radially outward from the screw tube 12.

[0053] The insertion portion 12c has an annular recess 12h and an annular protrusion 12j located in front of the annular recess 12h. A protrusion 11y (see FIG. 4) of the cartridge body 11 engages with the annular recess 12h, and the annular protrusion 12j engages with a hole 11x of the cartridge body 11. The engagement of the protrusion 11y with the annular recess 12h and the engagement of the annular protrusion 12j with the hole 11x causes the screw tube 12 to engage with the cartridge body 11 immovably in the axial direction D1 but rotatably relative thereto.

[0054] The screw tube 12 has a female screw 12k formed on the inner surface of the insertion portion 12c. For example, the female screw 12k protrudes radially inward from the inner surface of the screw tube 12 and extends obliquely with respect to the circumferential direction of the screw tube 12. The female screw 12k is a portion into which a male screw 13m of the movable body 13 screws. The female screw 12k screws into the male screw 13m, whereby the screw tube 12 is screwed and coupled to the movable body 13.

[0055] The cartridge body 11, the screw tube 12, and the movable body 13 are detachable from the container body 3 in a state in which the cap 2 is removed from the container body 3 (inner tube 4). For example, the cartridge body 11, the screw tube 12, and the movable body 13 are removed from the container body 3 after the drawing material M contained inside the cartridge body 11 has been used up.

[0056] Then, a new cartridge body 11, screw barrel 12, and movable body 13 are attached to the container body 3. For example, the drawing material container cartridge 10 has a cartridge cap 15, as shown in Figures 8(a) and 8(b). Before being attached to the container body 3, the cartridge body 11, screw barrel 12, and movable body 13 are held by the cartridge cap 15.

[0057] Fig. 8(a) is a side view showing the drawing material container cartridge 10 having a cartridge cap 15. Fig. 8(b) is a cross-sectional view showing the drawing material container cartridge 10 cut along a plane extending in both the axial direction D1 and the longitudinal direction D2. The cartridge cap 15 is a temporary cap that is attached to the cartridge body 11 when the drawing material container cartridge 10 is sold separately as a replacement, for example.

[0058] The cartridge cap 15 has, for example, a bottomed tubular shape (as an example, a bottomed cylindrical shape). The cartridge cap 15 is attached to the cartridge body 11 by inserting the tubular portion 11b of the cartridge body 11 along the axial direction D1. The cartridge cap 15 has an inner surface 15b extending along the axial direction D1 and a bottom portion 15c located at one end of the inner surface 15b in the axial direction D1.

[0059] The cartridge cap 15 has a contact prevention portion 15d that prevents the cartridge cap 15 from contacting the bottom portion 15c of the cylindrical portion 11b. The contact prevention portion 15d is formed on the inner surface 15b. For example, the contact prevention portion 15d is a rib 15f that protrudes radially inward from the inner surface 15b of the cartridge cap 15.

[0060] For example, the cartridge cap 15 has a plurality of ribs 15f, which are arranged in a circumferential direction of the cartridge cap 15. The protruding height of the ribs 15f on the inner surface 15b is, for example, constant. When the tubular portion 11b is inserted into the cartridge cap 15 through the opening 15k, the inclined surface 11r of the tubular portion 11b abuts against the ribs 15f, and the tubular portion 11b does not advance any further. This prevents the tubular portion 11b from contacting the bottom portion 15c.

[0061] The cartridge cap 15 has a second locking portion 15g that locks with the first locking portion 11s of the cartridge body 11 in the axial direction D1 when attached to the cartridge body 11. Fig. 9 is an enlarged view of the second locking portion 15g and the first locking portion 11s in Fig. 8(b). The second locking portion 15g has, for example, an annular recess 15h and an annular protrusion 15j located between the annular recess 15h and the opening 15k.

[0062] For example, the annular protrusion 15j is a portion that the step 11t is caught in. The second locking portion 15g is locked to the first locking portion 11s by the annular protrusion 15j being caught in the step 11t. For example, the height of the annular protrusion 15j on the inner surface 15b is the same as the height of the rib 15f, and the height of the annular recess 15h is the same as the height of a portion of the inner surface 15b where the rib 15f is not formed.

[0063] For example, in a cross section of the second locking portion 15g taken along a plane extending in the axial direction D1, the annular recess 15h and the annular protrusion 15j have a trapezoidal shape, and at least one of the corners of the annular recess 15h and the annular protrusion 15j may be rounded in the cross section.

[0064] Next, an example of a method of using the drawing material container cartridge 10 will be described. In the following, a procedure for removing the drawing material container cartridge 10 from the container body 3 of the drawing material container 1 in which the drawing material M has been used up, and then attaching a new drawing material container cartridge 10 to the container body 3 will be described. For example, as shown in Fig. 8(a) and Fig. 8(b), the new drawing material container cartridge 10 has a cartridge body 11, a screw tube 12, a movable body 13, and a cartridge cap 15, and the first locking portion 11s of the cartridge body 11 is locked to the second locking portion 15g of the cartridge cap 15. Specifically, with the tube portion 11b inserted inside the cartridge cap 15, the step 11t of the first locking portion 11s is hooked on the annular protrusion 15j of the second locking portion 15g.

[0065] First, the cartridge body 11, the screw tube 12, and the movable body 13 are removed from the container body 3 of the drawing material container 1 from which the drawing material M has been used up. For example, in the state shown in Fig. 2, the cap 2 is removed from the container body 3 (inner tube 4) and the cartridge body 11 is pulled forward, whereby the engagement portion 12b moves forward relative to the second protrusion 5c. At this time, the cartridge body 11 and the screw tube 12 move forward relative to the container body 3, and the cartridge body 11, the screw tube 12, and the movable body 13 are removed from the container body 3.

[0066] Then, the cartridge cap 15 is removed from the cartridge body 11 of the new drawing material container cartridge 10, and the screw barrel 12 and cartridge body 11 of the new drawing material container cartridge 10 are inserted backward into the inner cylinder 4. When the screw barrel 12 and cartridge body 11 are inserted backward inside the inner cylinder 4, the engagement portion 12b of the screw barrel 12 engages with the second protrusion 5c of the outer cylinder 5, and the first locking portion 11s locks with the container body 3 in the axial direction D1. For example, the step 11t of the first locking portion 11s abuts against the front end of the inner cylinder 4. This makes the drawing material container 1 ready for use.

[0067] The drawing material container 1 can be used by rotating the container body 3 relative to the cartridge body 11 with the cap 2 removed. When the container body 3 is rotated in one direction relative to the cartridge body 11, the screw tube 12, which rotates synchronously with the container body 3 (outer tube 5), rotates in one direction relative to the cartridge body 11 and the moving body 13, and the female screw 12k and the male screw 13m engage with each other, moving the moving body 13 forward relative to the screw tube 12. When the moving body 13 moves forward relative to the screw tube 12, the drawing material M held in the drawing material holding portion 13b of the moving body 13 is fed out from the opening 11c of the cartridge body 11, and the drawing material M is applied to the application area, such as the skin.

[0068] After the drawing material M has been applied, when the container body 3 is rotated relative to the cartridge body 11 in the opposite direction to the one direction described above, the container body 3 and the screw tube 12 rotate relative to the cartridge body 11 and the moving body 13 in the opposite direction, and the female screw 12k and the male screw 13m engage with each other, moving the moving body 13 backward relative to the screw tube 12. When the moving body 13 moves backward relative to the screw tube 12, the drawing material M sinks into the opening 11c. Then, the cap 2 is attached to the container body 3 (inner tube 4), and use of the drawing material container 1 is completed.

[0069] Next, the effects of the drawing material container cartridge 10 according to this embodiment will be described. As shown in FIG. 2 and FIG. 8(b), the drawing material container cartridge 10 includes a cartridge body 11 and a cartridge cap 15 attached to the cartridge body 11. The cartridge body 11 has a tubular portion 11b that accommodates the drawing material M, and the tubular portion 11b is inserted into the cartridge cap 15 along the axial direction D1. The cartridge body 11 is attached to the container body 3 by being inserted into the container body 3. The cartridge body 11 has a first locking portion 11s, and the first locking portion 11s is locked to the container body 3 in the axial direction D1. The cartridge cap 15 has a second locking portion 15g, and the second locking portion 15g is locked to the first locking portion 11s of the cartridge body 11 in the axial direction D1. Therefore, the first locking portion 11s of the cartridge body 11 is a portion that locks with the container body 3, and is also a portion that locks with the second locking portion 15g of the cartridge cap 15. Therefore, the first locking portion 11s of the cartridge body 11 can be commonly used as a portion that locks with the container body 3 and a portion that locks with the cartridge cap 15.

[0070] That is, the portion that engages with the container body 3 and the portion that engages with the cartridge cap 15 are formed as the first engaging portion 11s, which simplifies the configuration of the cartridge body 11. By using the first engaging portion 11s in common as the portion that engages with the container body 3 and the portion that engages with the cartridge cap 15, it is possible to reduce uneven portions of the cartridge body 11, thereby improving the aesthetic appearance of the cartridge body 11.

[0071] In this embodiment, the cartridge body 11 has an insertion portion 11q that is inserted into the container body 3. The first locking portion 11s may be a step 11t that expands in diameter from the insertion portion 11q, and the step 11t may come into contact with the container body 3 when the cartridge body 11 is attached to the container body 3. In this case, the cartridge cap 15 is locked to the step 11t, so that the cartridge cap 15 can be more securely attached to the cartridge body 11. Since the first locking portion 11s is the step 11t, the configuration of the first locking portion 11s can be simplified, which contributes to further simplification of the configuration.

[0072] In this embodiment, the tube portion 11b has an inclined surface 11r that is inclined with respect to the axial direction D1 so that the diameter of the tube portion 11b increases as it moves away from the opening 11c through which the drawing material M is exposed in the axial direction D1. In this case, the inclined surface 11r of the cartridge body 11 inserted into the cartridge cap 15 decreases in diameter toward the opening 11c. This makes it easy to insert the cartridge body 11 into the cartridge cap 15.

[0073] In this embodiment, the cartridge cap 15 has an inner surface 15b extending along the axial direction D1, a bottom portion 15c located at one end of the inner surface 15b in the axial direction D1, and a contact prevention portion 15d formed on the inner surface 15b for preventing contact with the bottom portion 15c of the tubular portion 11b. In this case, the contact prevention portion 15d formed on the inner surface 15b of the cartridge cap 15 prevents contact with the bottom portion 15c of the tubular portion 11b that contains the drawing material M. Therefore, it is possible to prevent the drawing material M from contacting the inner surface of the cartridge cap 15.

[0074] The drawing material container set according to the present disclosure includes the above-mentioned drawing material container cartridge 10 and a container body 3 to which the cartridge body 11 of the drawing material container cartridge 10 is detachably attached. For example, the drawing material container set is a drawing material container set in which the drawing material container cartridge 10 to which the cartridge cap 15 is attached as a temporary cap, and the container body 3 that constitutes the drawing material container 1 when the cartridge body 11, the screw tube 12, and the movable body 13 are attached are packaged together and sold. In the drawing material container set, the cartridge body 11 of the drawing material container cartridge 10 is detachably attached to the container body 3. Therefore, similar to the drawing material container cartridge 10, the configuration can be simplified and the aesthetic appearance can be improved.

[0075] The above describes the embodiments of the drawing material container cartridge and the drawing material container set according to the present disclosure. However, the drawing material container cartridge and the drawing material container set according to the present disclosure are not limited to the above-mentioned embodiments, and may be modified as appropriate within the scope of the gist described in the claims. That is, the shape, size, material, number and arrangement of each part of the drawing material container cartridge and the drawing material container set according to the present disclosure can be modified as appropriate within the scope of the gist described above.

[0076] For example, the drawing material container set may be a combination of a drawing material container cartridge 10 and a container body 3 to which the cartridge body 11, screw tube 12 and movable body 13 are not attached, or a combination of a drawing material container cartridge 10 and a container body 3 (drawing material container 1) to which the cartridge body 11, screw tube 12 and movable body 13 are attached.

[0077] In the above-described embodiment, the drawing material container cartridge 10 having the cartridge body 11 in which the first locking portion 11s is a step 11t has been described. However, the first locking portion does not have to be a step 11t, and may be, for example, a convex portion protruding in the radial direction or a concave portion recessed in the radial direction. In this way, the shape of the first locking portion can be appropriately changed. Similarly, the shape of the second locking portion of the cartridge cap can also be appropriately changed.

[0078] In the above-described embodiment, the drawing material container cartridge 10 has been described, which has the screw tube 12 having the female screw 12k and the movable body 13 having the male screw 13m, and has a function of feeding out the drawing material M by the screwing action between the female screw 12k and the male screw 13m as the screw tube 12 and the movable body 13 rotate relative to each other. However, the drawing material container cartridge may not have the screw tube 12 and the movable body 13. The drawing material container cartridge may not feed out the drawing material by relative rotation. The drawing material container cartridge may have a feeding mechanism that is a mechanical extrusion mechanism such as a knock type instead of relative rotation, and may push out the drawing material by the feeding mechanism, or may have a squeeze type feeding mechanism.

[0079] In the above-described embodiment, the drawing material container cartridge 10 including the drawing material M, which is a cosmetic, has been described. However, the drawing material may be something other than a cosmetic. For example, the drawing material may be a core material used in writing implements such as crayons. In this way, the drawing material container cartridge and drawing material container set according to the present disclosure are not limited to cosmetics, and can be applied to containers including various drawing materials such as writing implements or stationery. [Explanation of symbols]

[0080] Reference Signs List 1...drawing material container, 2...cap, 3...container body, 4...inner tube, 4b...insertion portion, 4c...exposed portion, 4d...slit, 4f...spring portion, 4g...engagement portion, 4h...first annular convex portion, 4j...second annular convex portion, 4k...convex portion, 5...outer tube, 5b...first convex portion, 5c...second convex portion, 5d...first annular recessed portion, 5f...second annular recessed portion, 10...drawing material container cartridge, 11...cartridge body, 11b... Cylindrical portion, 11c...opening, 11d...front end, 11f...first extension portion, 11g...second extension portion, 11h...first protruding portion, 11j...second protruding portion, 11k...corner portion, 11m...one-side holding portion, 11p...cylindrical holding portion, 11q...insertion portion, 11r...inclined surface, 11s...first locking portion, 11t...step, 11v...recess, 11w...elastic deformation portion, 11w1...first slit, 11w2...second slit, 11x... Hole portion, 11y...projection portion, 12...screw barrel, 12b...engagement portion, 12c...insertion portion, 12d...projection portion, 12f...flange portion, 12g...elastic deformation portion, 12g1...first slit, 12g2...second slit, 12g3...projection portion, 12h...annular recess, 12j...annular projecting portion, 12k...female screw, 13...moving body, 13b...drawing material holding portion, 13c...screw portion, 13d...base portion, 13f...gripping portion, 13g...projection portion, 13h...arm portion, 13j...protruding portion, 13k...protruding portion, 13m...male screw, 15...cartridge cap, 15b...inner surface, 15c...bottom portion, 15d...contact suppression portion, 15f...rib, 15g...second locking portion, 15h...annular recess, 15j...annular protruding portion, 15k...opening, D1...axial direction, D2...long axis direction, D3...short axis direction, L...axis, M...drawing material, M1...front end, M2...curved portion.

Claims

1. a cartridge body having a cylindrical portion for accommodating a drawing material, the cartridge body being detachably attached to the container body by being inserted into the container body along an axial direction in which the axis of the cylindrical portion extends; a cartridge cap that is attached to the cartridge body by inserting the cylindrical portion along the axial direction, the cartridge body has a first locking portion that is locked to the container body in the axial direction when the cartridge body is attached to the container body, the cartridge cap has a second locking portion that locks with the first locking portion in the axial direction when the cartridge cap is attached to the cartridge body; Drawing material container cartridge.

2. the cartridge body has an insertion portion that is inserted into the container body, The first engaging portion is a step that expands in diameter from the insertion portion, the step comes into contact with the container body when the cartridge body is attached to the container body; 2. The drawing material container cartridge according to claim 1.

3. the cylindrical portion has an inclined surface that is inclined with respect to the axial direction such that the diameter of the cylindrical portion increases as the cylindrical portion moves away from the opening through which the drawing material is exposed in the axial direction; 3. The drawing material container cartridge according to claim 1 or 2.

4. the cartridge cap has an inner surface extending along the axial direction, a bottom portion located at one end of the inner surface in the axial direction, and a contact prevention portion formed on the inner surface and preventing the cylindrical portion from contacting the bottom portion, 3. The drawing material container cartridge according to claim 1 or 2.

5. The drawing material container cartridge according to claim 1 or 2, a container body to which the cartridge body of the drawing material container cartridge is detachably attached; Including, Drawing material container set.

Citation Information

Patent Citations

  • Cosmetic container

    JP2000217635A