Delivery container

Abstract

To provide a delivery container capable of applying proper rotation resistance in relative rotation, and suppressing thickening of a diameter.SOLUTION: A delivery container in one embodiment comprises: a tip cylinder 3 having a cylinder hole for storing a drawing material; a container body 4 which is coupled to the tip cylinder 3 so as to rotate relatively; a screw cylinder 7 which is inserted into the tip cylinder 3, is coupled to the container body 4 so as to rotate synchronously, in the container body 4, and has a female screw in its inner face; and an elastomer 9 which is held between an inner face 3r of the tip cylinder 3 and an outer face 7t of the screw cylinder 7, and applies rotation resistance to relative rotation between the tip cylinder 3 and the screw cylinder 7. On a part where at least the elastomer 9 contacts on the inner face 3r of the tip cylinder 3, a cross section orthogonal to an axial direction being a direction where an axis of the tip cylinder 3 extends, is non-circular shaped.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present disclosure relates to a dispensing container for dispensing a drawing material. [Background technology]

[0002] Patent Document 1 describes a container for dispensing a stick-shaped cosmetic material. The container for dispensing a stick-shaped cosmetic material includes a cylindrical container with a leading tube, a joint tube, and a main body tube, a stick-shaped cosmetic material support that engages with the leading tube in the rotational direction and has a male screw on its outer periphery, and a rotation-stopping tube that engages with the main body tube in the rotational direction and has a female screw on its inner periphery with which the male screw screws.

[0003] When the front tube and the main tube rotate relative to each other in the other direction, which is the direction in which the stick-shaped cosmetic material is dispensed, the stick-shaped cosmetic material support, which rotates synchronously with the front tube, and the rotation stop tube, which rotates synchronously with the main tube, rotate relative to each other in the other direction. At this time, the screwing action of the male and female screws works to move the stick-shaped cosmetic material support forward, and the stick-shaped cosmetic material emerges from the opening at the tip of the front tube, ready for application.

[0004] The leading tube has an insertion portion that is inserted into the tip side of the joint tube, and an O-ring groove is provided in the insertion portion in an annular shape. An O-ring is fitted in the O-ring groove and is sandwiched between the leading tube and the joint tube. The O-ring is sandwiched between the leading tube and the joint tube to provide rotational resistance when the leading tube and the joint tube rotate relative to each other. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6281068 Summary of the Invention [Problem to be solved by the invention]

[0006] In the above-mentioned stick-shaped cosmetic dispensing container, an O-ring groove is formed on the outer surface of the leading tube. Therefore, unless the O-ring is small (thin) or the diameter of the leading tube is large, it may be difficult to form the O-ring groove and attach the O-ring. If the O-ring is small, the resistance to rotation during relative rotation may be insufficient. On the other hand, if the diameter of the leading tube is large, it is possible to attach a large (thick) O-ring. However, if the diameter of the leading tube is large, there is a concern that the diameter of the dispensing container as a whole will become larger.

[0007] An object of the present disclosure is to provide a dispensing container that can provide appropriate rotational resistance during relative rotation and can suppress an increase in diameter. [Means for solving the problem]

[0008] (1) The dispensing container according to the present disclosure is a dispensing container for dispensing a drawing material. The dispensing container includes a leading tube having a tube hole for accommodating the drawing material, a container body connected to the leading tube for relative rotation, a screw tube inserted into the leading tube and connected to the container body inside the container body for synchronous rotation therewithin, the screw tube having a female screw on its inner surface, and a moving body having a male screw on its outer surface that screws into the female screw inside the screw tube, the moving body advancing by the screwing action of the female screw and the male screw when the container body rotates relative to the leading tube to dispensing the drawing material, and an elastic body sandwiched between the inner surface of the leading tube and the outer surface of the screw tube to provide rotational resistance to the relative rotation between the leading tube and the screw tube. At least a portion of the inner surface of the leading tube where the elastic body abuts has a non-circular cross section perpendicular to the axial direction in which the axis of the leading tube extends.

[0009] This dispensing container has a leading tube and a container body, and the container body is connected to the leading tube so as to be rotatable relative to the leading tube. A screw tube having a female screw on its inner surface is connected to the container body so as to be rotatable synchronously. A moving body having a male screw that screws into the female screw is provided inside the screw tube. When the container body rotates relative to the leading tube, the moving body advances due to the screwing action of the female screw and the male screw. As the moving body advances, the drawing material is dispensed. The dispensing container has an elastic body that imparts rotational resistance to the relative rotation between the leading tube and the screw tube, and the elastic body is sandwiched between the outer surface of the screw tube and the inner surface of the leading tube. Thus, since the elastic body is located on the inner surface of the leading tube, it is not necessary to increase the diameter of the leading tube, so that a large elastic body can be attached and the enlargement of the diameter can be suppressed. In the dispensing container, at least a cross section perpendicular to the axial direction of a portion of the inner surface of the leading tube where the elastic body abuts is non-circular. Therefore, since it is possible to form portions on the inner surface of the tip tube where the elastic body makes strong contact and portions where it does not make strong contact, the elastic body can provide an appropriate rotational resistance during relative rotation between the tip tube and the screw tube.

[0010] (2) In the above (1), the inner surface of the leading tube may include a recess that is recessed radially outward of the leading tube in a cross section perpendicular to the axial direction, and the drawing material may have an insertion portion that fits into the recess in a cross section perpendicular to the axial direction. In this case, the insertion portion of the drawing material fits into the recess formed as the inner surface of the leading tube in a cross section perpendicular to the axial direction. Therefore, the drawing material can be held more reliably by the leading tube.

[0011] (3) In the above (1) or (2), the screw tube may have a protrusion that faces the inner surface of the leading tube. In this case, the protrusion of the screw tube that faces the inner surface of the leading tube abuts against the inner surface, thereby suppressing excessive deformation of the screw tube radially outward. As a result, the male screw of the moving body can be reliably screwed into the female screw of the screw tube.

[0012] (4) In any of (1) to (3) above, the screw tube may have a slit extending rearward from the front end of the screw tube and penetrating the screw tube in the radial direction of the screw tube, and a spring portion provided at the front end of the screw tube and imparted elasticity in the radial direction by the slit. The female screw may be provided in the spring portion. In this case, the female screw is provided in the spring portion imparted elasticity in the radial direction. Therefore, the movable body having a male screw can be easily attached to the screw tube, and the dispensing container can be easily assembled. Effect of the Invention

[0013] According to the present disclosure, it is possible to provide an appropriate rotational resistance during relative rotation and to suppress an increase in diameter. [Brief description of the drawings]

[0014] [Figure 1] Fig. 1(a) is a side view showing a dispensing container according to an embodiment, and Fig. 1(b) is a side view showing a dispensing container with the cap removed. [Diagram 2] FIG. 2 is a cross-sectional view showing the dispensing container according to the embodiment. [Diagram 3] Fig. 3(a) is a side view showing the front tube, and Fig. 3(b) is a cross-sectional view showing the front tube. [Figure 4] Fig. 4(a) is a side view showing the center cylinder, and Fig. 4(b) is a cross-sectional view showing the center cylinder. [Diagram 5] Fig. 5(a) is a side view showing the screw barrel, and Fig. 5(b) is a cross-sectional view showing the screw barrel. [Figure 6] Fig. 6(a) is a perspective view showing the movable body, and Fig. 6(b) is a front view showing a holding portion of the movable body that holds a drawing material. [Figure 7] Fig. 7(a) is a front view showing the front tube and the drawing material, and Fig. 7(b) is a cross-sectional view showing the front tube, the holding portion, and the drawing material. [Figure 8] FIG. 8 is a cross-sectional view showing the tip tube, the elastic body, and the screw tube. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of a 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 explanations 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 dispensing container 1 according to this embodiment. FIG. 1(b) is a side view showing the dispensing container 1 with the cap 2 removed. As shown in FIG. 1(a) and FIG. 1(b), the dispensing container 1 has a cap 2, a front tube 3, and a container body 4. Some parts of the dispensing container 1, including the cap 2, the front tube 3, and the container body 4, are cylindrical. When the parts of the dispensing container 1 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 dispensing container 1.

[0018] "Front", "front side", and "forward" refer to the direction from the container body 4 toward the leading tube 3 in the axial direction D1, and "rear", "rear side", and "rearward" refer to the direction from the leading tube 3 toward the container body 4 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 direction away from the axis L in the radial direction, and "radial inner side" refers to the direction toward the axis L in the radial direction. "Rotation direction" refers to the direction along the ring centered on the axis L (circumferential direction). In this embodiment, the direction in which the drawing material is fed is forward (advancing direction), and the opposite direction is rearward.

[0019] FIG. 2 is a cross-sectional view of the dispensing container 1 when cut along a plane extending along the axial direction D1. As shown in FIG. 1(a), FIG. 1(b) and FIG. 2, the dispensing container 1 is rod-shaped extending along the axial direction D1. The dispensing container 1 dispenses drawing material M. For example, the dispensing container 1 is a pen-shaped container that dispenses (pushes out) the drawing material M contained inside the dispensing container 1. For example, the cap 2 is tubular with a bottom. As an example, the cap 2 is cylindrical with a bottom. In this embodiment, the container body 4 includes a middle tube 5 to which the front tube 3 is attached, and a rear tube 6 extending rearward from the middle tube 5.

[0020] For example, the cross section of the drawing material M when cut along a plane perpendicular to the axis L has a non-circular shape. The drawing material M is, for example, solid. In this embodiment, the drawing material M is a stick-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 dispensing container 1 is an eyebrow cream application container.

[0021] Dispensing container 1 has a screw tube 7 located inside container body 4 and having a female screw 7b on its inner surface 7c, a movable body 8 having a male screw 8b on its outer surface 8c that screws into the female screw 7b and moves along axial direction D1, and an elastic body 9 attached to the outer surface 7t of the screw tube 7. Container body 4 is connected to leading tube 3 so as to be rotatable relative to the screw tube 7.

[0022] When the container body 4 rotates relative to the leading tube 3, the screw tube 7 rotates together with the container body 4 relative to the leading tube 3 and the moving body 8, and the female screw 7b and the male screw 8b engage with each other, moving the moving body 8 in the axial direction D1 relative to the screw tube 7. The elastic body 9 is provided to provide a rotational resistance to the relative rotation between the leading tube 3 and the screw tube 7. This allows the container body 4 to have an appropriate rotational resistance in the relative rotation with respect to the leading tube 3. The elastic body 9 is sandwiched between the inner surface 3r of the leading tube 3 and the outer surface 7t of the screw tube 7.

[0023] Fig. 3(a) is a side view showing the front tube 3. Fig. 3(b) is a cross-sectional view of the front tube 3 when cut along a plane extending along the axial direction D1. As shown in Figs. 2, 3(a) and 3(b), the front tube 3 is a component that holds the drawing material M. The front tube 3 has an opening 3b from which the drawing material M protrudes, and a tube hole 3t that houses the drawing material M. The tube hole 3t extends rearward from the opening 3b.

[0024] For example, the shape of the opening 3b when viewed along the axial direction D1 (viewed from the front) is non-circular. The opening 3b has an acute angle portion 3c located on one side of the radial direction D2 of the front tube 3 and an obtuse angle portion 3d located on the other side of the radial direction D2 of the front tube 3. The acute angle portion 3c is located forward of the obtuse angle portion 3d. For example, the opening 3b is defined by two first sides 3g forming an acute angle portion 3f, two second sides 3j extending in a direction intersecting with each other from an obtuse angle portion 3h located on the opposite side of the acute angle portion 3f of each first side 3g, and a third side 3k connecting the ends of the second sides 3j on the opposite side of the obtuse angle portion 3h.

[0025] For example, the length of the first side 3g is longer than the length of the second side 3j and longer than the length of the third side 3k. The acute-angled portion 3c is formed by the acute-angled portion 3f and the two first sides 3g, and the obtuse-angled portion 3d is formed by the two second sides 3j and the third side 3k. As an example, the opening 3b has a pentagonal shape with rounded corners.

[0026] The front tube 3 has a front tube portion 3A that is exposed when the cap 2 is removed, and a rear tube portion 3B that is inserted into the container body 4 (middle tube 5). The front tube portion 3A has an inclined surface 3m that extends rearward from the opening 3b. The inclined surface 3m is inclined with respect to the axial direction D1 so that the diameter of the front tube 3 increases as it moves away from the opening 3b. Due to the inclined surface 3m, the outer diameter of the front tube portion 3A increases toward the rear.

[0027] The front tube 3 has a step 3p between the front tube portion 3A and the rear tube portion 3B. For example, the rear-facing surface of the step 3p contacts the container body 4 (middle tube 5). At the step 3p, the outer diameter of the front tube 3 increases from the rear tube portion 3B toward the front tube portion 3A. For example, the maximum outer diameter of the rear tube portion 3B is smaller than the maximum outer diameter of the front tube portion 3A.

[0028] The front tube 3 has a recess 3s on its inner surface 3r, which extends along the axial direction D1 and is recessed radially outward of the front tube 3. The movable body 8 engages with the recess 3s in the rotational direction. This allows the movable body 8 to engage with the front tube 3 so as to be synchronously rotatable. The rear tube portion 3B has an annular protrusion 3q on its outer circumferential surface, which protrudes radially outward of the front tube 3. The annular protrusion 3q engages with the container body 4 (middle tube 5) in the axial direction D1 and is rotatable relative to the container body 4. This allows the front tube 3 to be mounted so as to be immovable in the axial direction but rotatable relative to the container body 4.

[0029] Fig. 4(a) is a side view showing the center cylinder 5. Fig. 4(b) is a cross-sectional view of the center cylinder 5 when cut along a plane extending along the axial direction D1. As shown in Figs. 2, 4(a) and 4(b), the center cylinder 5 has a front cylinder portion 5A that is exposed when the cap 2 is removed, and a rear cylinder portion 5B that is inserted into the rear cylinder 6.

[0030] The front tube portion 5A has an annular recess 5c recessed radially outward from the inner surface 5b of the middle tube 5, and an annular protrusion 5d protruding radially inward from the front side of the annular recess 5c. The annular recess 5c and the annular protrusion 5d are the portions to which the leading tube 3 is attached. More specifically, the leading tube 3 is attached to the middle tube 5 so as to be relatively rotatable by the annular protrusion 3q of the leading tube 3 riding rearward over the annular protrusion 5d engaging with the annular recess 5c.

[0031] The middle cylinder 5 has a flange 5f between the front cylinder portion 5A and the rear cylinder portion 5B. The flange 5f extends rearward from the front end 6b of the rear cylinder 6 and enters an annular recess 6d recessed radially outward from the inner surface 6c of the rear cylinder 6. The rear cylinder portion 5B has a protrusion 5h that protrudes radially outward on the outer surface 5g of the middle cylinder 5. For example, the rear cylinder portion 5B has a plurality of protrusions 5h. The protrusions 5h are portions that enter the inner surface 6c of the rear cylinder 6. More specifically, the protrusions 5h enter recesses 6f formed on the inner surface 6c of the rear cylinder 6. This allows the middle cylinder 5 to be attached to the rear cylinder 6.

[0032] The rear cylinder portion 5B has a plurality of recesses 5j that are recessed in the outer surface 5g of the middle cylinder 5, extend in the axial direction D1, and are aligned along the rotation direction D3, and a plurality of protrusions 5k that protrude radially outward from the recesses 5j between two recesses 5j aligned along the rotation direction D3. The recesses 5j and the protrusions 5k engage with the inner surface 6c of the rear cylinder 6 in the rotation direction D3. More specifically, the rear cylinder 6 engages with the middle cylinder 5 in the rotation direction D3 (to be synchronously rotatable) by each of the plurality of protrusions 6g formed on the inner surface 6c of the rear cylinder 6 fitting into each recess 5j.

[0033] The center cylinder 5 (rear cylinder portion 5B) has a protrusion 5m on its inner surface 5b, which extends in the axial direction D1 and protrudes radially inward of the center cylinder 5. The protrusion 5m is provided so that the center cylinder 5 and the screw cylinder 7 can engage with each other in the rotation direction D3 (to be synchronously rotatable). The center cylinder 5 has a plurality of protrusions 5m, which are aligned along the rotation direction D3. For example, the protrusions 5m include a first protrusion 5p and a second protrusion 5q that is higher in the radially inward direction than the first protrusion 5p and extends rearward from the rear end of the first protrusion 5p.

[0034] For example, the height of the first protrusion 5p at its front end increases toward the rear, and the height of the first protrusion 5p at any portion other than its front end is constant. The width of the first protrusion 5p at its front end (length in the rotation direction D3) increases toward the rear, and the width of the first protrusion 5p at any portion other than its front end is constant. The height of the second protrusion 5q increases toward the rear, and the width of the second protrusion 5q increases toward the rear.

[0035] Fig. 5(a) is a side view showing the screw tube 7. Fig. 5(b) is a cross-sectional view of the screw tube 7 when cut along a plane extending along the axial direction D1. As shown in Fig. 2, Fig. 5(a) and Fig. 5(b), the screw tube 7 is inserted into the front tube 3 and is connected to the container body 4 inside the container body 4 (middle tube 5) so as to be synchronously rotatable therewith.

[0036] The screw tube 7 has a protrusion 7d facing the inner surface 3r of the front tube 3. For example, the protrusion 7d protrudes radially outward from the front end of the screw tube 7. For example, in a side view, the protrusion 7d has an inverted U-shape. The screw tube 7 has a slit 7f extending rearward from the front end of the screw tube 7. For example, in a side view, the slit 7f has a C-shape. The screw tube 7 has a plurality of slits 7f, and the plurality of slits 7f are provided in pairs and aligned along the radial direction of the screw tube 7.

[0037] The screw tube 7 has a spring portion 7s that is given elasticity in the radial direction. For example, the spring portion 7s is a cylindrical region in which a protrusion 7d and a slit 7f are formed in the screw tube 7. The spring portion 7s is elastically deformable in the radial direction by the slit 7f. For example, the protrusion 7d abuts against the inner surface 3r of the front tube 3 when the spring portion 7s elastically deforms radially outward.

[0038] For example, the screw tube 7 has an inclined surface 7g extending rearward from the rear end of the slit 7f, and a smooth surface 7h extending along the axial direction D1 from the rear end of the inclined surface 7g. The inclined surface 7g is inclined with respect to the axial direction D1 so that the diameter of the screw tube 7 increases toward the rear. The smooth surface 7h extends rearward from the rear end of the inclined surface 7g.

[0039] The screw tube 7 has an annular recess 7j into which the elastic body 9 fits. For example, the elastic body 9 is an O-ring. For example, the cross section of the elastic body 9 when cut along a plane perpendicular to the extension direction (circumferential direction) of the elastic body 9 has a circular shape. As an example, the thickness (diameter of the cross section) of the elastic body 9 is 0.8 mm, which is larger than that of commonly used elastic bodies. This allows the use of an elastic body 9 that is highly durable and less likely to break, and increases the rotational resistance of the relative rotation of the container body 4 with respect to the leading tube 3.

[0040] The screw tube 7 has a cylindrical portion 7k extending rearward from the annular recess 7j, a flange portion 7m protruding radially outward from the cylindrical portion 7k, and an annular protrusion 7p located rearward of the flange portion 7m. The portion of the screw tube 7 forward of the flange portion 7m is inserted into the front tube 3, and the flange portion 7m and the portion of the screw tube 7 rearward of the flange portion 7m protrude rearward from the front tube 3.

[0041] The screw tube 7 has a protrusion 7q and a recess 7r that engage with the middle tube 5 so as to be synchronously rotatable. The protrusion 7q is a portion that protrudes radially outward, and the recess 7r is a portion that is recessed radially inward. For example, the protrusion 7q and the recess 7r extend forward from the rear end of the screw tube 7. The protrusion 7q and the recess 7r extend along the axial direction D1. The screw tube 7 has multiple protrusions 7q and multiple recesses 7r. The protrusions 7q and the recesses 7r are arranged alternately along the rotation direction. The protrusion 5m of the middle tube 5 enters the recess 7r, and the protrusion 7q enters between the two protrusions 5m of the middle tube 5, so that the screw tube 7 engages with the middle tube 5 in the rotation direction.

[0042] The female screw 7b of the screw tube 7 is provided on the spring portion 7s. The female screw 7b protrudes radially inward from the inner surface 7c of the spring portion 7s. The female screw 7b extends on the inner surface 7c obliquely with respect to the axial direction D1 and the circumferential direction of the spring portion 7s. For example, the spring portion 7s may have two female screws 7b, and the two female screws 7b may be aligned along the radial direction of the screw tube 7. As described above, the male screw 8b of the moving body 8 screws into the female screw 7b.

[0043] FIG. 6(a) is a perspective view showing the moving body 8. FIG. 6(b) is a front view of the moving body 8. As shown in FIG. 2, FIG. 6(a) and FIG. 6(b), the moving body 8 has a male screw 8b on an outer surface 8c that screws into the female screw 7b inside the screw tube 7. When the container body 4 rotates relative to the front tube 3, the moving body 8 advances due to the screwing action of the female screw 7b and the male screw 8b, thereby feeding out the drawing material M. The moving body 8 has a rod-shaped screw portion 8A and a holding portion 8B that holds the drawing material M. The holding portion 8B is located in front of the screw portion 8A. The male screw 8b of the moving body 8 extends in a spiral shape on the outer surface 8c of the screw portion 8A.

[0044] The holding portion 8B has a base portion 8d located at the front end of the screw portion 8A. The base portion 8d is a portion that faces (or comes into contact with) the drawing material M held by the holding portion 8B. The shape of the base portion 8d when viewed along the axial direction D1 (when viewed from the front) is, for example, the same as the shape of the drawing material M when viewed along the axial direction D1.

[0045] The base 8d has an acute angle portion 8f, a pair of first surfaces 8g extending in a direction away from the acute angle portion 8f, second surfaces 8h extending in a direction approaching each other from the end of each first surface 8g opposite the acute angle portion 8f, and a third surface 8j connecting the end portions of each second surface 8h opposite the first surface 8g. The acute angle portion 8f has an acute angle shape when viewed along the axial direction D1. The acute angle portion 8f is, for example, rounded.

[0046] The pair of first surfaces 8g extend from the acute angle portion 8f and have, for example, a V-shape. When viewed along the axial direction D1, the length of the first surface 8g is longer than the length of the second surface 8h and longer than the length of the third surface 8j. When viewed along the axial direction D1, the pair of second surfaces 8h and the third surface 8j have a trapezoidal shape.

[0047] When viewed along the axial direction D1, the angle between the third surface 8j and each of the second surfaces 8h is an obtuse angle. The base 8d has an obtuse angle portion 8k including a pair of the second surface 8h and the third surface 8j. For example, the obtuse angle portion 8k and the acute angle portion 8f are provided at positions sandwiching the center of the base 8d when viewed along the axial direction D1.

[0048] The holding portion 8B has an arm portion 8m extending forward from the base portion 8d. The arm portion 8m has a pair of plate-shaped portions 8p extending from the base portion 8d and a protrusion 8v formed on each plate-shaped portion 8p. Each plate-shaped portion 8p has an outer surface 8q facing the opposite side to the other plate-shaped portions 8p, an inner surface 8t facing the other plate-shaped portions 8p, a first surface 8r connecting the ends of the outer surface 8q and the inner surface 8t on the obtuse angle portion 8k side, and a second surface 8s connecting the ends of the outer surface 8q and the inner surface 8t on the acute angle portion 8f side. For example, the outer surface 8q is curved, and the first surface 8r, the second surface 8s, and the inner surface 8t are flat. When viewed along the axial direction D1, the outer surface 8q is arc-shaped.

[0049] When viewed along the axial direction D1, the inner surfaces 8t extend along the first surface 8g of the base 8d, and the pair of inner surfaces 8t approach each other as they approach the second surface 8s. The first surface 8r faces the opposite side to the second surface 8s, and for example, the first surface 8r and the second surface 8s extend parallel to each other. For example, the area of ​​the second surface 8s is larger than the area of ​​the first surface 8r.

[0050] The protrusion 8v is a portion that bites into the drawing material M. The holding portion 8B holds the drawing material M by the protrusion 8v biting into the drawing material M. The protrusion 8v protrudes from the inner surface 8t. For example, when viewed along the axial direction D1, the protrusion 8v is V-shaped. The protrusion 8v extends in the axial direction D1 on the inner surface 8t. The arm portion 8m has multiple protrusions 8v, and for example, three protrusions 8v are lined up on one plate-shaped portion 8p. For example, when viewed along the axial direction D1, the multiple protrusions 8v are formed to be lined up along the inner surface 8t.

[0051] Next, the drawing material M will be described. Fig. 7(a) is a front view of the leading tube 3 and the drawing material M as viewed from the front. Fig. 7(b) is a cross-sectional view of the container body 4, leading tube 3, movable body 8 (holding portion 8B), and drawing material M cut along a plane perpendicular to the axis L. Note that hatching is omitted in Fig. 7(b) and Fig. 8 described later to avoid complicating the illustration.

[0052] For example, as shown in FIG. 7(a) and FIG. 7(b), the shape of the drawing material M when viewed along the axial direction D1 and the shape of the cross section of the drawing material M when cut along a plane perpendicular to the axis L have a pentagonal shape with rounded corners. The drawing material M has an acute angle portion M1 located on one side of the radial direction of the front tube 3 and an obtuse angle portion M2 located on the other side of the radial direction of the front tube 3. The acute angle portion M1 includes a first corner portion M3 that forms an acute angle when viewed along the axial direction D1, and a pair of first surfaces M4 that extend in directions away from each other from the first corner portion M3. For example, the drawing material M is held by the holding portion 8B by each protrusion 8v of the holding portion 8B biting into the first surface M4.

[0053] The drawing material M has a pair of second corners M5 located on the opposite side to the first corners M3 of each first surface M4, and a pair of second surfaces M6 extending from each second corner M5 on the opposite side to the acute angle M1 and in a direction approaching each other. Furthermore, the drawing material M has a pair of third corners M7 located at the end of each second surface M6 on the opposite side to the second corners M5, and a third surface M8 connecting the pair of third corners M7 to each other.

[0054] For example, the area of ​​the first surface M4 is larger than the area of ​​the second surface M6 and is larger than the area of ​​the third surface M8. When viewed along the axial direction D1, the second corner M5 and the third corner M7 each have an obtuse angle. The obtuse angle M2 includes a pair of second surfaces M6, a pair of third corners M7, and a third surface M8. As an example, when viewed along the axial direction D1, the acute angle M1 has an isosceles triangle shape, and the obtuse angle M2 has a trapezoid shape. Since the drawing material M has the acute angle M1 and the obtuse angle M2, the user of the dispensing container 1 can select either the acute angle M1 or the obtuse angle M2, and apply the acute angle M1 to the application portion to draw a thin line and apply the obtuse angle M2 to the application portion to draw a thick line.

[0055] The drawing material M and the movable body 8 (holding portion 8B) are housed inside the front tube 3. In a cross section perpendicular to the axial direction D1, the inner surface 3r of the front tube 3 includes a recess recessed toward the radial outside of the front tube 3, and the drawing material M has an insertion portion that fits into the recess. In this embodiment, the recess includes a first recess 3v and a second recess 3w, and the insertion portion is an acute angle portion M1 and an obtuse angle portion M2. In this case, the recess includes a first recess 3v into which the acute angle portion M1 of the drawing material M fits, and a second recess 3w into which the obtuse angle portion M2 of the drawing material M fits. Furthermore, the recess may include a pair of third recesses 3x into which each plate-shaped portion 8p of the movable body 8 (holding portion 8B) fits.

[0056] The front tube 3 has a pair of first protrusions 3y1 located between the first recess 3v and each of the third recesses 3x, and a pair of second protrusions 3y2 located between the second recess 3w and each of the third recesses 3x. In a cross section perpendicular to the axial direction D1, the first recess 3v and the second recess 3w are shaped to imitate the shape of the drawing material M, and each of the third recesses 3x is shaped to imitate the shape of the plate-shaped portion 8p. The acute angle portion M1 enters the first recess 3v, the obtuse angle portion M2 enters the second recess 3w, and each plate-shaped portion 8p enters each of the third recesses 3x. This prevents the drawing material M and the moving body 8 from rotating relative to the front tube 3, and the drawing material M and the moving body 8 rotate synchronously with the front tube 3.

[0057] FIG. 8 is a cross-sectional view of the container body 4, the front tube 3, the elastic body 9, and the screw tube 7 cut along a plane perpendicular to the axis L. The cross-sectional portion shown in FIG. 8 is located behind the cross-sectional portion shown in FIG. 7(b). As shown in FIG. 8, at least the portion of the inner surface 3r of the front tube 3 where the elastic body 9 abuts has a non-circular cross section perpendicular to the axial direction D1. In this embodiment, in the cross section perpendicular to the axial direction D1, the inner surface 3r of the front tube 3 has an arc-shaped portion 3z3 where the elastic body 9 abuts, and a recess recessed radially outward from the arc-shaped portion 3z3. The recess includes, for example, a first recess 3z1 located on one side of the radial direction of the front tube 3, and a second recess 3z2 located on the other side of the radial direction of the front tube 3.

[0058] For example, the first recess 3z1 is located behind the first recess 3v (see Figure 7 (b)). The first recess 3v and the first recess 3z1 may be aligned along the axial direction D1. Similarly, the second recess 3z2 is located behind the second recess 3w. The second recess 3w and the second recess 3z2 may be aligned along the axial direction D1. The inner surface 3r of the front tube 3 has a pair of arc-shaped portions 3z3 aligned along the radial direction of the front tube 3. The first recess 3z1 and the second recess 3z2 are formed between the pair of arc-shaped portions 3z3.

[0059] For example, in a cross section perpendicular to the axial direction D1, the first recess 3z1 has an arc shape, and the second recess 3z2 has a rounded trapezoid shape. For example, the width of the first recess 3z1 (the length in the left-right direction in FIG. 8) is narrower than the width of the second recess 3z2. The elastic body 9 has a first insertion portion 9b that fits into the first recess 3z1, a second insertion portion 9c that fits into the second recess 3z2, and an abutment portion 9d that abuts against the inner surface 3r (arc-shaped portion 3z3) of the front tube 3.

[0060] The elastic body 9 has an abutment portion 9d that abuts against the inner surface 3r of the front tube 3 and a non-abutment portion that does not abut against the inner surface 3r of the front tube 3, and in this embodiment, the non-abutment portion is the first insertion portion 9b and the second insertion portion 9c. The elastic body 9 has the abutment portion 9d and the non-abutment portion, so that the rotation resistance of the front tube 3 with respect to the container body 4 and the screw tube 7 can be moderated. That is, the elastic body 9 has a non-abutment portion together with the abutment portion 9d, so that a relief portion that does not abut against the front tube 3 is formed in the elastic body 9, and it is possible to suppress the rotation resistance from becoming too strong. Note that in this embodiment, the non-abutment portion is the first insertion portion 9b and the second insertion portion 9c. However, the non-abutment portion may be, for example, one or three or more insertion portions, and the number and shape of the non-abutment portions are not particularly limited.

[0061] Next, the effects and advantages obtained from the dispensing container 1 according to this embodiment will be described in more detail. As shown in FIG. 2 and FIG. 8, the dispensing container 1 has a leading tube 3 and a container body 4, and the container body 4 is connected to the leading tube 3 so as to be rotatable relative to the leading tube 3. A screw tube 7 having a female screw 7b on its inner surface is connected to the container body 4 so as to be rotatable synchronously. Inside the screw tube 7, a moving body 8 having a male screw 8b that screws into the female screw 7b is provided. When the container body 4 rotates relative to the leading tube 3, the moving body 8 advances due to the screwing action of the female screw 7b and the male screw 8b. As the moving body 8 advances, the drawing material M is dispensed. The dispensing container 1 has an elastic body 9 that applies a rotational resistance to the relative rotation between the leading tube 3 and the screw tube 7, and the elastic body 9 is sandwiched between the outer surface 7t of the screw tube 7 and the inner surface 3r of the leading tube 3. Thus, by positioning the elastic body 9 on the inner surface 3r of the leading tube 3, it is not necessary to increase the diameter of the leading tube 3, so a large elastic body 9 can be attached and the increase in diameter can be suppressed. In the dispensing container 1, at least the portion of the inner surface 3r of the leading tube 3 with which the elastic body 9 abuts has a non-circular cross section perpendicular to the axial direction D1. Therefore, it is possible to form a portion with which the elastic body 9 strongly abuts on the inner surface 3r of the leading tube 3 (e.g., abutment portion 9d) and a portion with which it does not strongly abut (e.g., non-abutment portion), so that the elastic body 9 can provide an appropriate rotational resistance during relative rotation between the leading tube 3 and the screw tube 7.

[0062] As shown in FIG. 7(b), the inner surface 3r of the leading tube 3 may include recesses (first recess 3v and second recess 3w) recessed radially outward of the leading tube 3 in a cross section perpendicular to the axial direction D1, and the drawing material M may have an insertion portion (acute angle portion M1 and obtuse angle portion M2) that enters the recesses in a cross section perpendicular to the axial direction D1. In this case, the insertion portion of the drawing material M enters the recess formed as the inner surface 3r of the leading tube 3 in the cross section perpendicular to the axial direction D1. Therefore, the drawing material M can be held more reliably by the leading tube 3.

[0063] 2, 5(a) and 5(b), the screw tube 7 may have a protrusion 7d that faces the inner surface 3r of the front tube 3. In this case, the protrusion 7d of the screw tube 7 that faces the inner surface 3r of the front tube 3 abuts against the inner surface 3r, thereby suppressing excessive deformation of the screw tube 7 radially outward. As a result, the male screw 8b of the movable body 8 can be reliably screwed into the female screw 7b of the screw tube 7.

[0064] The screw tube 7 may have a slit 7f extending rearward from the front end of the screw tube 7 and penetrating the screw tube 7 in the radial direction of the screw tube 7, and a spring portion 7s provided at the front end of the screw tube 7 and given elasticity in the radial direction by the slit 7f. The female screw 7b may be provided on the spring portion 7s. In this case, the female screw 7b is provided on the spring portion 7s that is given elasticity in the radial direction. Therefore, the movable body 8 having the male screw 8b can be easily attached to the screw tube 7, and the dispensing container 1 can be easily assembled.

[0065] The above describes an embodiment of the dispensing container according to the present disclosure. However, the dispensing container according to the present disclosure is not limited to the content of the above-described embodiment, and may be further modified within the scope of the gist described in the claims. In other words, the shape, size, material, number and arrangement of each part of the dispensing container may be appropriately changed within the scope of the above gist.

[0066] For example, in the above-mentioned embodiment, an example was described in which the elastic body 9 is an O-ring. However, the elastic body may be something other than an O-ring, such as a C-ring. In the above-mentioned embodiment, an example was described in which the opening 3b of the front tube 3, the shape of the drawing material M when viewed along the axial direction D1, and the cross-sectional shape of the drawing material M when cut on a plane perpendicular to the axis L are pentagonal with rounded corners. However, the opening of the front tube, the shape of the drawing material when viewed along the axial direction, and the cross-sectional shape of the drawing material when cut on a plane perpendicular to the axis may be a polygonal shape other than a pentagon, such as a triangular shape, a rectangular shape, a hexagonal shape, or an octagonal shape, or may be an elliptical shape, or a shape having a curved surface and a flat surface. The cross section perpendicular to the axial direction in the part of the inner surface of the front tube other than the part where the elastic body abuts may be a circular shape. In this way, the shape of the inner surface of the front tube, etc. can be appropriately changed within the scope of the above-mentioned gist.

[0067] In the above-described embodiment, an example was described in which the drawing material M was a cosmetic. 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 dispensing container according to the present disclosure is not limited to cosmetics, and can be applied to various drawing materials such as writing implements or stationery. [Explanation of symbols]

[0068] 1...Dispensing container, 2...Cap, 3...Top tube, 3A...Front side tube part, 3b...Opening, 3B...Back side tube part, 3c...Acute angle part, 3d...Obtuse angle part, 3f...Acute angle part, 3g...First side, 3h...Obtuse angle part, 3j...Second side , 3k...Third side, 3m...Slope, 3p...Step, 3q...Annular protrusion, 3r...Inner surface, 3s...Recess, 3t...Cyber ​​hole, 3v...First recess, 3w...Second recess, 3x...Third recess, 3y1...First protrusion, 3y2... Second protrusion, 3z1...first recess, 3z2...second recess, 3z3...arc-shaped portion, 5...middle tube, 5A...front tube portion, 5B...rear tube portion, 5b...inner surface, 5c...annular recess, 5d...annular protrusion, 5f...flange portion, 5g...outer surface, 5h...protrusion, 5j...recess, 5k...protrusion, 5m...protrusion, 5p...first protrusion, 5q...second protrusion, 6...rear tube, 6b...front end, 6c...inner surface, 6d...annular recess, 6f...recess, 6g...protrusion, 7...screw tube, 7 b...female screw, 7c...inner surface, 7d...convex portion, 7f...slit, 7g...inclined surface, 7h...smooth surface, 7j...annular recess, 7k...tubular portion, 7m...flange portion, 7p...annular protrusion, 7q...convex portion, 7r...concave portion, 7s...spring portion, 7t...outer surface, 8...moving body, 8A...screw portion, 8b...male screw, 8B...holding portion, 8c...outer surface, 8d...base portion, 8f...acute angle portion, 8g...first surface, 8h...second surface, 8j...third surface, 8k...obtuse angle portion, 8 m...arm portion, 8p...plate-shaped portion, 8q...outer surface, 8r...first surface, 8s...second surface, 8t...inner surface, 8v...projection portion, 9...elastic body, 9b...first insertion portion, 9c...second insertion portion, 9d...contact portion, D1...axial direction, D2...radial direction, D3...rotational direction, L...axis, M...drawing material, M1...acute angle portion, M2...obtuse angle portion, M3...first corner portion, M4...first surface, M5...second corner portion, M6...second surface, M7...third corner portion, M8...third surface.

Claims

1. A dispenser for dispensing a drawing material, a front tube having a bore for accommodating the drawing material; A container body connected to the front tube so as to be relatively rotatable; a screw tube that is inserted into the front tube and is connected to the container body inside the container body so as to be synchronously rotatable therewith, the screw tube having a female screw on an inner surface; a moving body having a male screw on its outer surface that screws into the female screw inside the screw tube, and advancing when the container body rotates relative to the leading tube due to the screwing action between the female screw and the male screw, thereby advancing the drawing material; an elastic body that is sandwiched between an inner surface of the front tube and an outer surface of the screw tube and that applies a rotational resistance to the relative rotation between the front tube and the screw tube; Equipped with At least a portion of the inner surface of the front tube with which the elastic body abuts has a non-circular cross section perpendicular to the axial direction in which the axis of the front tube extends. Dispensing container.

2. an inner surface of the leading tube includes a recess that is recessed radially outward of the leading tube in a cross section perpendicular to the axial direction, The drawing material has an insertion portion that fits into the recess in a cross section perpendicular to the axial direction. The dispensing container according to claim 1.

3. The screw tube has a protrusion facing the inner surface of the front tube. The dispensing container according to claim 1 or 2.

4. The screw cylinder is a slit extending rearward from a front end of the screw tube and penetrating the screw tube in a radial direction of the screw tube; a spring portion provided at a front end portion of the screw barrel and having elasticity in the radial direction provided by the slit; The female screw is provided in the spring portion. The dispensing container according to claim 1 or 2.

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