Application container
The coating container addresses the issue of deformation and breakage in flat materials by using a cylindrical member with a holding portion and feeding mechanism to securely retain and feed the material, enhancing reliability and preventing damage.
Patent Information
- Application Number
- JP2023112920
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-07-10
- Publication Date
- 2025-01-23
AI Technical Summary
Existing coating containers fail to adequately retain flat-shaped coating materials, leading to deformation and breakage during loading, feeding, and carrying due to insufficient holding mechanisms.
A coating container design featuring a cylindrical member with a flat-shaped cylindrical hole and a feeding mechanism that includes a holding portion, such as a leaf spring portion, to securely hold the coating material along its flat surface, preventing deformation and breakage by ensuring wide-range contact and elastic deformation.
The design effectively suppresses deformation and breakage of flat-shaped coating materials by providing comprehensive holding and controlled feeding, ensuring reliable application without damage.
Smart Images

Figure 2025010750000001_ABST
Abstract
Description
[Technical field]
[0001] The present disclosure relates to an application container that dispenses an application material. [Background technology]
[0002] Patent Document 1 describes an application container including a front tube that contains an application material and has an opening through which the application material is exposed. The opening extends in a long axis direction that intersects with the axial direction. The front tube has a front edge that curves from a tip located on one side in the long axis direction to the other side in the long axis direction and rearward so as to bulge toward the outside of the front tube. When viewed from the other side in the long axis direction, the opening extends rearward from the tip in a slit shape. At the tip of the front tube, which has an outer surface that curves from the tip to bulge outward from the front tube and extends rearward, a first application material holding portion is formed on both sides of the short axis direction of the opening. A second application material holding portion is formed on one side in the long axis direction of the opening that extends in a slit shape. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2021-151379 A Summary of the Invention [Problem to be solved by the invention]
[0004] In the above-mentioned applicator container, the applicator is held by the first applicator holding portion and the second applicator holding portion provided at the tip of the front tube. However, there are places other than the tip of the front tube where the applicator is not held. When the applicator has a flat shape, there is a concern that the applicator may be deformed or broken if there are many places where the applicator is not held as described above. In particular, there is a possibility that the applicator may be deformed or broken when loading a flat-shaped applicator into the applicator container, when unloading a flat-shaped applicator, or when carrying the applicator container.
[0005] An object of the present disclosure is to provide an application container that can suppress deformation and breakage of a flattened application material. [Means for solving the problem]
[0006] (1) An application container according to one aspect of the present disclosure is an application container that dispenses a coating material. The application container includes a cylindrical member having a cylindrical hole that accommodates the coating material and an opening through which the coating material is exposed, and a dispensing mechanism that advances the coating material accommodated in the cylindrical hole and protrudes the coating material from the opening. The shape of the cylindrical hole of the cylindrical member as viewed along the axial direction, which is the direction in which the axis of the cylindrical member extends, and the shape of the coating material as viewed along the axial direction are flat shapes having a long axis and a short axis. The coating material has a thickness in the short axis direction, which is the direction in which the short axis extends. The coating material has a flat surface that extends in the long axis direction, which is the direction in which the long axis extends, and in the axial direction. The cylindrical member has a holding portion that holds the coating material by contacting the flat surface. The holding portion extends from one end side to the other end side in the axial direction of the flat surface when in contact with the flat surface.
[0007] This application container includes a cylindrical member that contains the application material, and a dispensing mechanism that dispenses the application material contained in the cylindrical member, and the application material protrudes from the cylindrical member when the dispensing mechanism dispenses the application material. The shape of the tubular hole of the cylindrical member as viewed along the axial direction and the shape of the application material as viewed along the axial direction are flattened with a major axis and a minor axis. The application material has a flat surface extending in the axial direction and the major axis direction, and the cylindrical member has a holding portion that holds the application material by contacting the flat surface. The holding portion that contacts the flat surface of the application material extends from one end side to the other end side in the axial direction of the flat surface. Therefore, since the holding portion extends from one side to the other side in the axial direction of the flat surface while in contact with the flat surface, the holding portion can hold the application material in a wide range from one side to the other side in the axial direction. Therefore, even when holding a coating material having a flat shape, deformation and breakage of the coating material can be suppressed by the holding portion holding the coating material in a range extending from one side to the other side in the axial direction of the flat surface.
[0008] (2) A coating container according to another aspect of the present disclosure is a coating container that dispenses a coating material. The coating container includes a cylindrical member having a cylindrical hole that accommodates the coating material and an opening through which the coating material is exposed, and a dispensing mechanism that advances the coating material accommodated in the cylindrical hole and protrudes the coating material from the opening. The shape of the cylindrical hole as viewed along the axial direction, which is the direction in which the axis of the cylindrical member extends, and the shape of the coating material as viewed along the axial direction are flat shapes having a long axis and a short axis. The coating material has a thickness in the short axis direction, which is the direction in which the short axis extends. The coating material has a flat surface that extends in the long axis direction, which is the direction in which the long axis extends, and in the axial direction. The cylindrical member has a holding portion that holds the coating material by contacting the flat surface. The holding portion is a leaf spring portion defined by a slit formed in the cylindrical member. The leaf spring portion comes into contact with the coating material and elastically deforms along the thickness direction of the cylindrical member.
[0009] In this application container, the shape of the cylindrical hole of the cylindrical member as viewed along the axial direction and the shape of the application material as viewed along the axial direction are flat with a major axis and a minor axis, and the application material has a flat surface extending in the axial direction and the major axis direction. The cylindrical member has a holding part that holds the application material by contacting the flat surface, and the holding part is a leaf spring part defined by a slit formed in the cylindrical member. This leaf spring part contacts the application material and elastically deforms along the thickness direction of the cylindrical member. Therefore, the elastically deformed leaf spring part contacts the flat surface, so that the application material can be held over a wide range. Therefore, even when holding a flat-shaped application material, the leaf spring part contacts the flat surface to hold the application material, so that the application material can be held with an appropriate holding force and deformation and breakage of the application material can be suppressed.
[0010] (3) In the above (1), the holding portion may have a protruding shape that protrudes toward the flat surface. The cylindrical member may have a plurality of holding portions aligned along the long axis direction and along the short axis direction. The coating material may be sandwiched between the plurality of holding portions aligned along the short axis direction. In this case, the coating material is held in a state where it is sandwiched between a pair of holding portions aligned along the short axis direction, so that the coating material can be held more firmly by the plurality of holding portions. As a result, deformation and breakage of the coating material can be more reliably suppressed.
[0011] (4) In any of the above (1) to (3), the cylindrical member may include a first component member and a second component member joined to the first component member. In this case, the application material can be held between the first component member and the second component member. Therefore, by joining the second component member to the first component member with the application material interposed between the first component member and the second component member, the application material can be easily loaded into the cylindrical member.
[0012] (5) In the above (4), the first and second components may be joined to each other along a direction perpendicular to the axial direction. In this case, the coating material can be held between the first and second components facing each other along a direction perpendicular to the axial direction, making it easy to load and hold the coating material.
[0013] (6) In the above (4), the first and second components may be joined to each other along the axial direction. In this case, since the first component is joined to the second component along the axial direction, it is easy to join the first component to the second component.
[0014] (7) In any of the above (1) to (6), the application container may include a front tube that houses a tubular member and has a first female screw therein, a rear tube that is connected to the front tube so as to be rotatable relative to the front tube, a screw tube that is provided inside the rear tube and has a first male screw that screws into the first female screw and a second female screw formed on its inner surface, and a moving body that advances inside the screw tube and has a second male screw that screws into the second female screw. The payout mechanism may include a first screwing portion that advances the screw tube relative to the front tube by a screwing action between the first female screw and the first male screw when the screw tube rotates relative to the front tube, and a second screwing portion that advances the moving body relative to the screw tube by a screwing action between the second female screw and the second male screw when the rear tube rotates relative to the screw tube. When the rear cylinder rotates in one direction relative to the front cylinder, the screw cylinder may rotate synchronously with the rear cylinder and the screw cylinder may advance to the forward limit relative to the rear cylinder, causing the tubular member and the application material to protrude forward from the front cylinder. When the rear cylinder rotates in one direction relative to the front cylinder with the screw cylinder reaching the forward limit, the rear cylinder may rotate relative to the screw cylinder and the moving body may advance relative to the screw cylinder, causing the application material to be fed out to the tubular member. In this case, the application material can be advanced together with the tubular member by rotating the rear cylinder in one direction relative to the front cylinder, so that deformation and breakage of the application material when the application material is fed out can be suppressed. In addition, the application material is fed out to the tubular member only when the screw cylinder reaches the forward limit and the tubular member and the application material protrude forward from the front cylinder. Therefore, the amount of application material fed out to the tubular member can be reduced, so that breakage of the application material when applying can be more reliably suppressed. Effect of the Invention
[0015] According to the present disclosure, deformation and breakage of a flattened coating material can be suppressed. [Brief description of the drawings]
[0016] [Figure 1] Fig. 1(a) is a diagram showing an application container according to the first embodiment, and Fig. 1(b) is a diagram showing a state in which a cylindrical member and an application material are fed out from the application container of Fig. 1(a). [Diagram 2] 2(a) is an enlarged view of the cylindrical member and the application material in FIG. 1(b), FIG. 2(b) is a view showing a state in which the application material has been further advanced from the state shown in FIG. 2(a), and FIG. 2(c) is a view showing a state in which the cylindrical member and the application material have been retracted from the state shown in FIG. 2(b). [Diagram 3] FIG. 2 is a cross-sectional view showing the application container according to the first embodiment. [Figure 4] FIG. 2 is a front view showing the application container according to the first embodiment. [Diagram 5] 1(a) and 1(b) are cross-sectional views showing a front tube of an application container according to the first embodiment. [Figure 6] 6(a) is a side view showing the screw tube of the application container according to the first embodiment, and (b) is a perspective view showing the screw tube of FIG. [Figure 7] FIG. 2 is a cross-sectional view showing a rear cylinder of the application container according to the first embodiment. [Figure 8] 8(a) is a side view showing a moving body of the application container according to the first embodiment, and (b) is a cross-sectional view taken along line AA in FIG. 8(a). [Figure 9] 9(a) is a side view showing a pressing member of the application container according to the first embodiment, and FIG.9(b) is a perspective view showing the pressing member of FIG.9(a). [Figure 10] 9(b) is an enlarged perspective view of the rear end portion of the pressing member of FIG. 9(a). [Figure 11] 11(a) is a perspective view showing a cylindrical member of the application container according to the first embodiment, and FIG. 11(b) is a partial cross-sectional view showing the cylindrical member of FIG. [Figure 12] FIG. 12 is a front view showing the cylindrical member of FIG. [Figure 13] FIG. 11(b) is an enlarged perspective view of the rear end portion of the cylindrical member of FIG. [Figure 14] 3 is a cross-sectional view of the tubular member when the tubular member is cut along a plane perpendicular to the axial direction. FIG. [Figure 15] FIG. 13 is a perspective view showing a tail plug of an application container according to a first modified example. [Figure 16]FIG. 11 is a perspective view showing a first component member and a second component member of a tubular member according to a second modified example. [Figure 17] FIG. 17 is a perspective view showing a first component member of FIG. 16. [Figure 18] 3 is a cross-sectional view showing a first component member and a second component member when cut along a plane perpendicular to the axial direction. FIG. [Figure 19] FIG. 13 is a cross-sectional view showing a first component member and a second component member according to a third modified example. [Figure 20] FIG. 13 is an exploded perspective view showing an application container according to a fourth modified example. [Figure 21] 21(a) is a perspective view showing how an application material is loaded into the second component member of the application container in Fig. 20. FIG. 21(b) is a perspective view showing how a first component member is joined to the second component member in Fig. 21(a). FIG. 21(c) is a perspective view showing how a front tube is attached to the first component member and the second component member in Fig. 21(b). [Figure 22] FIG. 13 is a perspective view showing a cylindrical member, a front tube, and an applying material of an applying container according to a fifth modified example. [Diagram 23] 23(a) is a perspective view showing a first component of the tubular member of Fig. 22. (b) is a perspective view showing a second component of the tubular member of Fig. 22. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0017] Hereinafter, an embodiment of the application 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 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.
[0018] In the present disclosure, the term "application material" refers to something that is applied to a target application area. The "application material" is, for example, a cosmetic or a drawing material. In the present embodiment, an example will be described in which the application material is a cosmetic. The "cosmetic" is, for example, an eyebrow cream, an eyeliner, a lipstick, a lip liner, a lip gloss, a beauty stick, or a concealer.
[0019] Fig. 1(a) is a perspective view showing an applicator container 1 according to an embodiment. Fig. 1(b) is a perspective view showing a state in which an applicator material M is fed out from the applicator container 1. As shown in Figs. 1(a) and 1(b), the applicator container 1 has a front tube 2, a rear tube 3 connected to the front tube 2, and a cap 4 connected to the rear tube 3.
[0020] In the application container 1, some parts, including the front tube 2, the rear tube 3, and the cap 4, are cylindrical. In the application 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 application container 1.
[0021] "Front", "front side", and "forward" refer to the direction from the rear tube 3 to the front tube 2 in the axial direction D1, and "rear", "rear side", and "rear" refer to the direction from the front tube 2 to the rear tube 3 in the axial direction D1. "Radial direction" refers to a direction perpendicular to the axis L. "Radial outer side" refers to a radial direction away from the axis, and "radial inner side" refers to a radial direction approaching the axis. "Rotation direction" refers to a direction (circumferential direction) along a ring centered on the axis L. In this embodiment, the payout direction in which the application material M is paid out is the forward direction (advancing direction), and the opposite direction is the rear.
[0022] The applicator container 1 has a rod shape extending along the axial direction D1. The applicator container 1 dispenses the applicator material M. For example, the applicator container 1 is a pen-type container that dispenses (pushes out) the applicator material M contained inside the applicator container 1. The applicator material M has a flat and solid shape. The applicator material M is, for example, a plate-shaped cosmetic material. However, the applicator material M may also be a plate-shaped drawing material. As an example, the applicator material M may be an eyebrow, in which case the applicator container 1 is an eyebrow applicator container.
[0023] The applicator container 1 includes a cylindrical member 10 having an opening 10b through which the application material M is exposed. A rear cylinder 3 is connected to the front cylinder 2 so as to be capable of relative rotation. Figs. 2(a), 2(b) and 2(c) are perspective views showing the front cylinder 2, the cylindrical member 10 and the application material M. Fig. 3 is a cross-sectional view showing the applicator container 1.
[0024] As shown in Figures 1(a), 1(b), 2(a), 2(b), 2(c) and 3, the front tube 2 has a front opening 2b from which the tubular member 10 and the application material M are projected forward. The tubular member 10 has a tube hole 10c that houses the application material M. The tube hole 10c extends rearward from the opening 10b. The application container 1 has an unwinding mechanism 15 that advances the application material M housed in the tube hole 10c to project the application material M from the opening 10b.
[0025] 1(a), 1(b), and 2(a), in the feeding mechanism 15, when the rear tube 3 rotates in one direction (e.g., clockwise) relative to the front tube 2, the tubular member 10 and the application material M protrude forward from the tip opening 2b of the front tube 2. As shown in Fig. 2(a) and 2(b), when the rear tube 3 further rotates in one direction relative to the front tube 2 with the tubular member 10 and the application material M protruding a certain amount from the tip opening 2b, the application material M is fed forward relative to the tubular member 10.
[0026] 2(b) and 2(c), in the feeding mechanism 15, when the rear tube 3 rotates relative to the front tube 2 in the opposite direction to the one direction (e.g., counterclockwise), both the tubular member 10 and the application material M are retracted rearward relative to the tip opening 2b of the front tube 2. The application material M advances relative to the tubular member 10 and retreats together with the tubular member 10 by the feeding mechanism 15, and does not retreat relative to the tubular member 10. The feeding mechanism 15 will be described in detail later.
[0027] 3, the application container 1 has a screw tube 5 provided inside the rear tube 3, a movable body 6 that moves inside the screw tube 5, a pressing member 7 located between the movable body 6 and the application material M, a tail plug 8 that seals the rear end of the rear tube 3, and an applicator 9 fixed to the tail plug 8. For example, the applicator 9 is inserted into the tail plug 8 and holds the inserted applicator 9. As an example, the applicator 9 is a screw brush, and the tail plug 8 functions as a brush holder.
[0028] The cap 4 is attached to the tail plug 8 so as to cover the applicator 9, and is detachable from the tail plug 8. The configurations of the cap 4, the tail plug 8, and the applicator 9 are not limited to the above example and can be modified as appropriate. The applicator container 1 may be a container that does not have the applicator 9 and the cap 4. The screw tube 5, the movable body 6, and the pressing member 7 will be described in detail later.
[0029] 4 is a view of the front tube 2, the cylindrical member 10, and the application material M. As shown in Fig. 3 and Fig. 4, the shape of the opening 10b seen along the axial direction D1 is a flat shape having a major axis and a minor axis. The shape of the cylindrical hole 10c seen along the axial direction D1 is a flat shape having a major axis L11 and a minor axis L12, and the shape of the application material M seen along the axial direction D1 is a flat shape having a major axis L21 and a minor axis L22.
[0030] For example, the long axis L21 and the short axis L22 of the application material M respectively coincide with the long axis L11 and the short axis L12 of the tube hole 10c. In this embodiment, the "flat shape" refers to a shape in which the length in the long axis direction D2, which is the direction in which the long axis L11 (long axis L21) extends, is shorter than the length in the short axis direction D3, which is the direction in which the short axis L12 (short axis L22) extends. The front tube 2 has a tip 2j. The tip 2j is located at one end of the front tube 2 in the axial direction D1 and at one end of the front tube 2 in the long axis direction D2.
[0031] For example, when viewed from the front, the front tube 2 has a circular shape. The cross-sectional shape of the front tube 2 perpendicular to the axial direction D1 transitions from a circular shape to a flat shape from the rear tube 3 toward the front end opening 2b. The front tube 2 has a front end portion 2d where the front end opening 2b is formed, and a tapered surface 2f extending from the front end portion 2d toward the rear tube 3. On the tapered surface 2f, the length of the front tube 2 in the major axis direction D2 and the length of the front tube 2 in the minor axis direction D3 become longer as it approaches the rear tube 3.
[0032] When viewed along the axial direction D1, the tip opening 2b has a flat shape (for example, a rectangular shape with rounded corners). The tip portion 2d has a smooth surface 2g where the tip opening 2b is formed, and a curved surface 2h that extends from the smooth surface 2g to the tapered surface 2f. When viewed along the minor axis direction D3, the smooth surface 2g is curved so as to bulge outward from the front tube 2 as it moves away from the tip 2j.
[0033] The smooth surface 2g has an asymmetric shape with respect to a reference line A that passes through the center 2x of the front tube 2 when viewed along the axial direction D1 and extends along the minor axis direction D3. More specifically, the smooth surface 2g has a protruding region 2g1 that protrudes to one side of the major axis direction D2. As an example, the protruding region 2g1 has a trapezoidal shape with an upper base that extends along the minor axis direction D3. When viewed along the axial direction D1, the curved surface 2h has a rounded rectangular shape that surrounds the smooth surface 2g. The curved surface 2h is curved so as to bulge outward from the front tube 2.
[0034] The front tube 2 has an inner surface 2k extending rearward from the front end opening 2b. The inner surface 2k includes a first inner surface 2k1 extending in the axial direction D1 and the long axis direction D2, and a second inner surface 2k2 extending in the axial direction D1 and the short axis direction D3. The inner surface 2k includes a pair of first inner surfaces 2k1 aligned along the short axis direction D3, and a pair of second inner surfaces 2k2 aligned along the long axis direction D2.
[0035] The coating material M has a thickness in the short axis direction D3. The coating material M has a flat surface M1 extending in the axial direction D1 and the long axis direction D2, a side surface M2 extending in the axial direction D1 and the short axis direction D3, and a tip surface M3 located at the front end of the coating material M. The coating material M has a pair of flat surfaces M1 aligned along the short axis direction D3 and a pair of side surfaces M2 aligned along the long axis direction D2. The flat surfaces M1 and the side surfaces M2 are, for example, flat.
[0036] For example, the tip surface M3 is inclined with respect to both the axial direction D1 and the longitudinal direction D2. The tip surface M3 is inclined so as to follow the tip portion 2d (smooth surface 2g) of the front tube 2. The application material M has a tip portion M4. The tip portion M4 is located at one end of the application material M in the axial direction D1 and at one end of the application material M in the longitudinal direction D2. The tip surface M3 extends obliquely rearward from the tip portion M4.
[0037] The cylindrical member 10 is located inside the tip opening 2b of the front tube 2. For example, the cylindrical member 10 is in contact with a part of the inner surface 2k (the second inner surface 2k2). When viewed along the axial direction D1, the cylindrical member 10 has a flattened shape. As an example, when viewed along the axial direction D1, the cylindrical member 10 has a rounded rectangular shape. The cylindrical member 10 has a holding portion 11 that holds the application material M in the tube hole 10c.
[0038] The holding portion 11 has a protruding shape that protrudes from the inner peripheral surface 10d of the cylindrical member 10 that defines the cylindrical hole 10c. When viewed along the axial direction D1, the holding portion 11 has a triangular shape. A part of the holding portion 11 (e.g., the top) may be embedded in the flat surface M1 of the application material M. In this manner, the holding portion 11 holds the application material M by contacting the application material M.
[0039] For example, the cylindrical member 10 has a plurality of holding portions 11. The plurality of holding portions 11 are lined up along the long axis direction D2. For example, one of the pair of holding portions 11 lined up along the long axis direction D2 is disposed on one side as viewed from the reference line A, and the other of the pair of holding portions 11 lined up along the long axis direction D2 is disposed on the other side as viewed from the reference line A. The pair of holding portions 11 lined up along the long axis direction D2 may be disposed at positions symmetrical to each other with respect to the reference line A.
[0040] The multiple holding parts 11 are aligned along the short axis direction D3. As a result, the application material M is sandwiched between a pair of holding parts 11 aligned along the short axis direction D3. By arranging the holding parts 11 as described above, the application material M can be firmly held in the cylindrical hole 10c of the tubular member 10. However, the shape, number and arrangement of the holding parts 11 can be appropriately changed. The tubular member 10 will be described in detail later.
[0041] Fig. 5(a) is a cross-sectional view of the front tube 2 cut along a plane extending along the axial direction D1 and the minor axis direction D3. Fig. 5(b) is a cross-sectional view of the front tube 2 cut along a plane extending along the axial direction D1 and the major axis direction D2. As shown in Figs. 3, 5(a) and 5(b), the front tube 2 has a recess 2p formed as an inner surface 2k. The recess 2p includes a first recess 2p1 recessed in the major axis direction D2 and a second recess 2p2 recessed in the minor axis direction D3.
[0042] The recess 2p includes a pair of first recesses 2p1 aligned along the long axis direction D2 and a pair of second recesses 2p2 aligned along the short axis direction D3. In a cross section perpendicular to the axial direction D1, the recess 2p has a cross shape. The cylindrical member 10 engages with the recess 2p in the rotational direction. As a result, the cylindrical member 10 engages with the leading tube 2 so as to be synchronously rotatable.
[0043] The front tube 2 has a tube portion 2q extending along the axial direction D1 behind the tapered surface 2f. For example, the tube portion 2q has a cylindrical shape. The diameter of the tube portion 2q is reduced from a step portion 2r located at the rear end of the tapered surface 2f. The tube portion 2q has a protrusion 2s that protrudes radially outward from the front tube 2 and engages with the inner surface 3b of the rear tube 3 in the axial direction.
[0044] By engaging the protrusion 2s with the inner surface 3b, the front tube 2 engages with the rear tube 3 so as to be immovable in the axial direction and rotatable relative to the rear tube 3. The tube portion 2q has a through hole 2t penetrating the front tube 2 in the radial direction. For example, when viewed from the radial outside of the front tube 2, the through hole 2t has a rectangular shape. The tube portion 2q has, for example, a pair of through holes 2t, which are aligned along the radial direction of the front tube 2.
[0045] The front tube 2 has a first female screw 2v inside the front tube 2. The first female screw 2v is, for example, a protrusion that protrudes from the inner surface 2k and extends in a direction inclined with respect to the rotation direction. For example, the first female screw 2v is located at the rear end of the through hole 2t. The front tube 2 has, for example, a plurality of first female screws 2v, which are arranged along the radial direction of the front tube 2.
[0046] Fig. 6(a) is a side view showing the screw tube 5. Fig. 6(b) is a perspective view showing the screw tube 5. As shown in Fig. 3, Fig. 6(a) and Fig. 6(b), the screw tube 5 is provided inside the rear tube 3. The screw tube 5 has a first tube portion 5c in which a first male screw 5b that screws into the first female screw 2v of the front tube 2 is formed, a second tube portion 5d located rearward of the first tube portion 5c, and a flange portion 5f located between the first tube portion 5c and the second tube portion 5d.
[0047] The first male screw 5b is helical on the outer circumferential surface of the first tube portion 5c. When the first male screw 5b is screwed into the first female screw 2v of the front tube 2, the screw tube 5 moves a certain length along the axial direction D1 relative to the front tube 2 when the screw tube 5 rotates relative to the front tube 2. The flange portion 5f is disposed between the rear end 2w of the front tube 2 and a protruding portion 3c of the rear tube 3, which will be described later.
[0048] The advancing mechanism 15 has a first screwing portion 16 that advances the screw tube 5 relative to the front tube 2 by the screwing action of the first female screw 2v and the first male screw 5b when the screw tube 5 rotates relative to the front tube 2. The first screwing portion 16 includes the first female screw 2v and the first male screw 5b. The screw tube 5 can advance from a position where the flange 5f contacts the protruding portion 3c to a position where the flange 5f contacts the rear end 2w of the front tube 2. The position of the screw tube 5 where the flange 5f contacts the protruding portion 3c is the rear limit of the screw tube 5, and the position of the screw tube 5 where the flange 5f contacts the rear end 2w is the forward limit of the screw tube 5.
[0049] The screw tube 5 accommodates, for example, a part of the tubular member 10 (for example, the rear end portion). The first tube portion 5c has a tube portion 5g located in front of the first male screw 5b. The tube portion 5g has, for example, a cylindrical shape. For example, the tube portion 5g has a window portion 5h that penetrates the tube portion 5g in the radial direction of the screw tube 5. The tubular member 10 engages with the window portion 5h in the axial direction D1. As a result, the tubular member 10 engages with the screw tube 5 so as to be immovable in the axial direction but rotatable relative to the screw tube 5.
[0050] The second tube portion 5d has a slit 5j and a spring portion 5k defined by the slit 5j. The slit 5j includes a pair of first slits 5j1 extending in the rotation direction D4 and a second slit 5j2 connecting the pair of first slits 5j1 to each other. The pair of first slits 5j1 are aligned along the axial direction D1. The second slit 5j2 extends along the axial direction D1 between the ends of the pair of first slits 5j1 in the rotation direction D4. The spring portion 5k defined by the pair of first slits 5j1 and second slits 5j2 has elasticity in the radial direction of the screw tube 5.
[0051] The spring portion 5k has a protruding portion 5p protruding radially outward from the screw tube 5. The protruding portion 5p has a first inclined surface 5p1 extending obliquely from the outer surface 5q of the screw tube 5 toward the radially outward side, a second inclined surface 5p2 extending obliquely toward the radially outward side from an end of the first inclined surface 5p1 opposite the outer surface 5q, a top surface 5p3, and a wall surface 5p4 extending from the top surface 5p3 toward the radially inward side of the screw tube 5. The spring portion 5k is elastically deformable in the radial direction of the screw tube 5 when the protruding portion 5p abuts against the protruding portion 3c of the rear tube 3.
[0052] The screw tube 5 has a second female screw 5r formed on the inner surface of the screw tube 5. The second female screw 5r extends, for example, in a spiral shape from the rear end 5t of the second tube portion 5d. The screw tube 5 has, for example, a pair of second female screws 5r, which face each other along the radial direction of the screw tube 5. The region between the pair of second female screws 5r in the screw tube 5 is used as a holding portion that holds the moving body 6. A slit 5s is formed between the pair of second female screws 5r. This slit 5s makes it easy to release the screw tube 5 from a mold when it is manufactured by resin molding.
[0053] As described above, the second cylindrical portion 5d has a slit 5s located between the pair of second female screws 5r. The slit 5s extends forward from the rear end 5t of the screw barrel 5. The second cylindrical portion 5d has, for example, a pair of slits 5s, which face each other along the radial direction of the screw barrel 5.
[0054] 7 is a cross-sectional view of the rear cylinder 3 taken along a plane extending in the radial direction and axial direction D1 of the rear cylinder 3. As shown in FIG. 3 and FIG. 7, the rear cylinder 3 has a cylindrical shape with a smooth outer surface 3d. The rear cylinder 3 has an annular protrusion 3f protruding radially inward on the inner surface 3b, and an annular recess 3g located on the inner surface 3b behind the annular protrusion 3f and recessed radially outward. The protrusion 2s of the front cylinder 2, which has passed rearward over the annular protrusion 3f, fits into the annular recess 3g.
[0055] For example, the rear cylinder 3 has a plurality of protruding portions 3c on the inner surface 3b. The plurality of protruding portions 3c are arranged in a line along the circumferential direction of the rear cylinder 3. For example, the protruding portions 3c are plate-shaped, extending in the axial direction D1 and having a thickness along the circumferential direction of the rear cylinder 3. The protruding portions 3c have a first portion 3c1 that protrudes radially inward on the inner surface 3b of the rear cylinder 3, and a second portion 3c2 that protrudes radially outward from the first portion 3c1 behind the first portion 3c1. The protruding portion 3c further has an inclined portion 3c3 that extends obliquely from the rear end of the second portion 3c2 so as to expand radially outward.
[0056] The protruding portion 3c engages with the convex portion 5p (see FIG. 6(b)) of the screw tube 5 described above in the rotational direction. The screw tube 5 is rotatable only in one direction relative to the rear tube 3. More specifically, the screw tube 5 is rotatable relative to the rear tube 3 in one direction (counterclockwise in FIG. 6(b)) in which the first inclined surface 5p1 of the convex portion 5p contacts the protruding portion 3c.
[0057] In contrast, the screw barrel 5 does not rotate relative to the rear barrel 3 in the opposite direction (clockwise in FIG. 6(b)) to the direction in which the wall surface 5p4 of the convex portion 5p comes into contact with the protruding portion 3c. In other words, when the screw barrel 5 tries to rotate in the opposite direction relative to the rear barrel 3, the wall surface 5p4 comes into contact with the protruding portion 3c, and the rotation is restricted.
[0058] The rear barrel 3 has a knurl 3h located behind the protruding portion 3c, an annular recess 3j located behind the knurl 3h, and an annular protruding portion 3k located behind the annular recess 3j. A tail plug 8 engages with the knurl 3h, the annular recess 3j, and the annular protruding portion 3k. By engaging the tail plug 8 with the knurl 3h, the annular recess 3j, and the annular protruding portion 3k, the tail plug 8 engages with the rear barrel 3 so as to be immovable in the axial direction but synchronously rotatable.
[0059] The tail plug 8 has a first holding portion 8b that holds the movable body 6, an engagement portion 8c that engages with the knurling 3h, the annular recess 3j, and the annular protrusion 3k of the rear cylinder 3, a flange portion 8d that is exposed to the outside of the applicator container 1, and a second holding portion 8f that holds the applicator 9. The applicator 9 protrudes rearward from the second holding portion 8f.
[0060] The second holding portion 8f has an outer cylinder portion 8h that engages with the cap 4, an inner cylinder portion 8j located radially inside the outer cylinder portion 8h, and a plurality of ribs 8k located between the outer cylinder portion 8h and the inner cylinder portion 8j. The inner cylinder portion 8j has a hole portion 8g into which the applicator 9 is inserted. The second holding portion 8f holds the applicator 9 by inserting the applicator 9 into the hole portion 8g. The flange portion 8d is located between the engagement portion 8c and the second holding portion 8f.
[0061] The engaging portion 8c has, for example, a cylindrical shape. The engaging portion 8c has an annular convex portion 8p that engages with the annular concave portion 3j of the rear cylinder 3 in the axial direction D1, and a convex portion 8q that engages with the knurling 3h of the rear cylinder 3 in the rotational direction. The first holding portion 8b has a rod shape. The first holding portion 8b protrudes forward from the engaging portion 8c. For example, the moving body 6 has a cylindrical shape, and the first holding portion 8b is inserted into the moving body 6.
[0062] Fig. 8(a) is a side view showing the moving body 6. Fig. 8(b) is a cross-sectional view taken along line AA in Fig. 8(a). As shown in Figs. 3, 8(a) and 8(b), the moving body 6 has a second male screw 6b which screws into the second female screw 5r of the screw tube 5 described above. The payout mechanism 15 has a second screwing portion 17 which advances the moving body 6 relative to the screw tube 5 by the screwing action between the second female screw 5r and the second male screw 6b. The second screwing portion 17 includes the second female screw 5r and the second male screw 6b.
[0063] The movable body 6 has a recess 6f on the inner surface 6d that is recessed radially outward and extends in the axial direction D1. The movable body 6 has a plurality of recesses 6f, which are arranged in a circumferential direction. The first retaining portion 8b of the tail plug 8 engages with the recess 6f in the rotational direction. The engagement of the first retaining portion 8b with the recess 6f in the rotational direction allows the tail plug 8 to engage with the movable body 6 so as to be synchronously rotatable. For example, the movable body 6 has a window portion 6g that penetrates the movable body 6 in the radial direction. The movable body 6 has a pair of windows 6g, which are arranged in a radial direction of the movable body 6. The first retaining portion 8b located inside the movable body 6 is visible through the window portion 6g.
[0064] The movable body 6 has a connecting portion 6c that is connected to the pressing member 7 in front of the second male screw 6b. The connecting portion 6c has, for example, a cylindrical shape. The connecting portion 6c has a hole portion 6k that is recessed rearward from the front end 6j of the movable body 6, and a through hole 6h that penetrates the connecting portion 6c in the radial direction. The connecting portion 6c has a pair of through holes 6h that are aligned in the radial direction. The hole portion 6k communicates with the through hole 6h, and the pressing member 7 engages with the hole portion 6k and the through hole 6h. By engaging the pressing member 7 with the hole portion 6k and the through hole 6h, the movable body 6 engages with the pressing member 7 so as to be immovable in the axial direction but rotatable relative to the pressing member 7.
[0065] Fig. 9(a) is a side view showing the pressing member 7. Fig. 9(b) is a side view showing the pressing member 7. Fig. 10 is an enlarged perspective view of the rear end portion 7b of the pressing member 7. As shown in Figs. 8(b), 9(a), 9(b) and 10, the rear end portion 7b of the pressing member 7 is a portion that engages with the moving body 6, and has, for example, a stepped cylindrical shape.
[0066] The rear end 7b has a cylindrical outer surface 7c and an annular protrusion 7d protruding from the outer surface 7c. The annular protrusion 7d has a top surface 7f extending in the circumferential direction and an inclined surface 7g extending rearward and diagonally downward from the top surface 7f. The connecting portion 6c of the movable body 6 has an inner surface 6p that defines a hole 6k.
[0067] The inner surface 6p has an inclined surface 6q that extends obliquely radially inward as it moves away from the front end 6j, and a top surface 6r that extends rearward from the end of the inclined surface 6q opposite the front end 6j. When the rear end 7b of the pressing member 7 is inserted into the hole 6k, the annular protrusion 7d rides rearward over the inner surface 6p and engages with the through hole 6h in the axial direction D1.
[0068] 3, 9(a), 9(b), and 10, the pressing member 7 has a rotation prevention portion 7h that functions as a rotation prevention portion for the cylindrical member 10, and a pushing portion 7j that is located in front of the rotation prevention portion 7h and pushes out the application material M. The rotation prevention portion 7h extends in the axial direction D1 inside the screw tube 5.
[0069] The pressing member 7 has a first plate-shaped portion 7k extending in the axial direction D1 and the major axis direction D2 and having a thickness in the minor axis direction D3, and a second plate-shaped portion 7p intersecting the first plate-shaped portion 7k. The second plate-shaped portion 7p extends in the axial direction D1 and the minor axis direction D3 and has a thickness in the major axis direction D2.
[0070] The pressing member 7 has a pair of second plate-shaped portions 7p, which are arranged along the minor axis direction D3. Each of the second plate-shaped portions 7p protrudes upward and downward from the center of the first plate-shaped portion 7k in the major axis direction D2. Thus, when viewed from the front, the pressing member 7 has a cross shape.
[0071] For example, the portion of the pressing member 7 where the first plate-shaped portion 7k and the second plate-shaped portion 7p are provided is the anti-rotation portion 7h, and the portion of the pressing member 7 where only the first plate-shaped portion 7k is provided is the pushing portion 7j. The anti-rotation portion 7h engages with the cylindrical member 10 in the rotation direction inside the screw tube 5. This prevents the pressing member 7 from rotating relative to the cylindrical member 10.
[0072] For example, the length of the pushing portion 7j in the axial direction D1 is shorter than the length of the anti-rotation portion 7h in the axial direction D1. The pushing portion 7j is located in front of the anti-rotation portion 7h. The pushing portion 7j has a tip surface 7q that abuts against the application material M. For example, the shape and size of the tip surface 7q are the same as the shape and size of the rear end surface M5 of the application material M. Each of the tip surface 7q and the rear end surface M5 has a flat shape having a major axis extending in the major axis direction D2 and a minor axis extending in the minor axis direction D3.
[0073] Next, the cylindrical member 10 will be described in more detail. Fig. 11(a) is a perspective view showing the cylindrical member 10. Fig. 11(b) is a cross-sectional perspective view showing the cylindrical member 10 cut along a plane extending in the axial direction D1 and the longitudinal axis direction D2. As shown in Figs. 11(a) and 11(b), the cylindrical member 10 has a connection portion 12 to which the screw tube 5 is connected, a holding tube portion 13 that holds the application material M, and a flange portion 14 located between the connection portion 12 and the holding tube portion 13.
[0074] The shape of the holding tube portion 13 when viewed along the axial direction D1 is a flat shape having a major axis extending along the major axis direction D2 and a minor axis extending along the minor axis direction D3. As described above, the tubular member 10 has the holding portion 11 that holds the application material M. In the holding portion 11, the application material M extends along the axial direction D1.
[0075] 4 and 11(b), the holding portion 11 extends from one end side to the other end side in the axial direction D1 of the flat surface M1 when in contact with the flat surface M1 of the application material M. "The holding portion extends from one end side to the other end side in the axial direction of the flat surface" means that the holding portion extends from one end side to the other end side in the axial direction of the flat surface.
[0076] The term "the holding portion extends from one end side to the other end side in the axial direction of the flat surface" may mean that the holding portion extends linearly from one end side to the other end in the axial direction of the flat surface. In this embodiment, the holding portion 11 extends from one end side to the other end side in the axial direction D1 of the flat surface M1, so that even a coating material M that is short (thin) in length in the minor axis direction D3 can be firmly held.
[0077] In the cylindrical member 10 according to the present embodiment, the holding portion 11 is formed in the cylindrical hole 10c, so that the application material M having a length of 1 mm or less in the minor axis direction D3 can be firmly held. For example, the length of the application material M in the minor axis direction D3 is 0.5 mm or more and 1 mm or less, and the length of the application material M in the major axis direction D2 is 3 mm or more and 4 mm or less.
[0078] 11(b), the holding portion 11 extends linearly from the front end of the flat surface M1 toward the rear. For example, the length of the holding portion 11 in the axial direction D1 is 20% or more and 50% or less of the length of the flat surface M1 in the axial direction D1. However, the length of the holding portion 11 in the axial direction D1 is not limited to the above example and can be changed as appropriate.
[0079] The cylindrical member 10 has a tip 10h. The tip 10h is located at one end of the cylindrical member 10 in the axial direction D1 and at one end of the cylindrical member 10 in the longitudinal direction D2. In this embodiment, the length in the axial direction D1 of the holding portion 11 located on one side of the longitudinal direction D2 is different from the length in the axial direction D1 of the holding portion 11 located on the other side of the longitudinal direction D2. More specifically, the length of the holding portion 11 located on the tip 10h side of the cylindrical member 10 is longer than the length of the holding portion 11 located on the opposite side of the cylindrical member 10 from the tip 10h.
[0080] Fig. 12 is a diagram showing the tubular member 10 as viewed from the front. As shown in Fig. 11(a), Fig. 11(b) and Fig. 12, the shape of the tubular hole 10c of the holding tubular portion 13 as viewed from the front is a flat shape having a long axis L11 and a short axis L12. As an example, the shape of the tubular hole 10c of the holding tubular portion 13 as viewed from the front is a rectangle having a long side extending in the long axis direction D2 and a short side extending in the short axis direction D3.
[0081] For example, the retaining tube portion 13 has a first side portion 13b extending in the axial direction D1 and the long axis direction D2, and a second side portion 13c extending in the axial direction D1 and the short axis direction D3. The retaining tube portion 13 has a pair of second side portions 13c aligned along the long axis direction D2. For example, the second side portions 13c are flat.
[0082] The first side portion 13b has a flat surface 13d extending in the axial direction D1 and the long axis direction D2, and a protruding portion 13f protruding from the flat surface 13d. The flat surface 13d includes a first flat surface 13d1 located on the tip 10h side of the cylindrical member 10, and a second flat surface 13d2 extending rearward from the first flat surface 13d1. The second flat surface 13d2 is located closer to the end of the short axis direction D3 than the first flat surface 13d1. The holding tube portion 13 has a step portion 13g located between the first flat surface 13d1 and the second flat surface 13d2.
[0083] The tubular member 10 engages with the leading tube 2 in the rotational direction by entering into the recess 2p (see Figs. 5(a) and 5(b)) of the leading tube 2 described above. More specifically, the second side portion 13c of the holding tube portion 13 enters into the first recess 2p1 and the protrusion portion 13f of the holding tube portion 13 enters into the second recess 2p2, whereby the tubular member 10 engages with the leading tube 2 in the rotational direction.
[0084] The holding tube portion 13 has a pair of protrusions 13f, which are aligned along the minor axis direction D3. This makes the cylindrical member 10 cross-shaped when viewed from the front. The protrusions 13f have a first portion 13f1 located on one side in the major axis direction D2 and a second portion 13f2 located on the other side in the major axis direction D2 and having a lower protruding height than the first portion 13f1.
[0085] The length of the first portion 13f1 in the long axis direction D2 is longer than the length of the second portion 13f2 in the long axis direction D2. The center position of the convex portion 13f in the long axis direction D2 is shifted to one side of the long axis direction D2 (right side in FIG. 12) from the center position of the cylindrical member 10 in the long axis direction D2. The center position of the second recess 2p2 in the long axis direction D2 is shifted to one side of the long axis direction D2 (lower side in FIG. 5(b)) from the center position of the leading tube 2 in the long axis direction D2. Therefore, it is possible to avoid the cylindrical member 10 being inserted into the leading tube 2 by reversing the orientation in the short axis direction D3.
[0086] Fig. 13 is an enlarged perspective view of the connection part 12 and the flange part 14. As shown in Fig. 13, the connection part 12 protrudes from the flange part 14 in the opposite direction (rearward) from the holding tube part 13. The connection part 12 has a protruding part 12c protruding rearward from the flange part 14, and a hole part 12b extending forward from a rear end 12d of the protruding part 12c and through which the pressing member 7 is passed.
[0087] The hole portion 12b includes a first hole portion 12f penetrating the protruding portion 12c in the long axis direction D2 and a second hole portion 12g intersecting the first hole portion 12f and extending along the short axis direction D3. The second hole portion 12g protrudes from the center of the first hole portion 12f in the long axis direction D2 in the short axis direction D3. For example, when viewed from the rear, the first hole portion 12f and the second hole portion 12g have a cross shape.
[0088] The pressing member 7 is inserted into the hole portion 12b from the rear. More specifically, the first plate-shaped portion 7k (see FIG. 9(b)) of the pressing member 7 is inserted into the first hole portion 12f, and the second plate-shaped portion 7p of the pressing member 7 is inserted into the second hole portion 12g. By inserting the pressing member 7 into the hole portion 12b in this manner, the pressing member 7 engages with the cylindrical member 10 in the rotational direction (to be synchronously rotatable).
[0089] Fig. 14 is a cross-sectional view of a portion where the protrusion 13f of the holding cylindrical portion 13 is formed when cut along a plane perpendicular to the axial direction D1. As shown in Fig. 12 and Fig. 14, the cylindrical hole 10c of the cylindrical member 10 includes a first cylindrical hole portion 10f extending rearward from the tip 10h, and a second cylindrical hole portion 10g located rearward of the first cylindrical hole portion 10f and inside the portion where the protrusion 13f of the cylindrical member 10 is formed.
[0090] The cross section of the first cylindrical hole portion 10f when cut on a plane perpendicular to the axial direction D1 has a flat shape extending in the long axis direction D2 and the short axis direction D3. The cross section of the second cylindrical hole portion 10g when cut on a plane perpendicular to the axial direction D1 has a cross shape. For example, a part (front part) of the application material M is passed through the first cylindrical hole portion 10f, and the remaining part (rear part) of the application material M and the pressing member 7 are passed through the second cylindrical hole portion 10g. This allows the application material M and the pressing member 7 to move forward in the cylindrical hole 10c.
[0091] Next, the operation of each part of the applicator container 1 when the applicator container 1 is used will be described with reference to Figures 1(a), 1(b), 2(a) to 2(c), and 3. First, when the rear cylinder 3 rotates relative to the front cylinder 2 in one direction (for example, clockwise), the screw cylinder 5 rotates synchronously with the rear cylinder 3, and the screwing action of the first male screw 5b of the screw cylinder 5 and the first female screw 2v (first screwing portion 16) of the front cylinder 2 works, so that the screw cylinder 5 advances relative to the front cylinder 2.
[0092] When the screw tube 5 advances relative to the front tube 2, the tubular member 10 and the application material M advance together with the screw tube 5. The advancing tubular member 10 and the application material M protrude forward from the tip opening 2b of the front tube 2. Then, when the rear tube 3 rotates in one direction relative to the front tube 2 in a state where the screw tube 5 advances and reaches its forward limit, the rear tube 3, the tail plug 8, and the moving body 6 rotate in one direction relative to the screw tube 5, and a screwing action is performed between the second female screw 5r of the screw tube 5 and the second male screw 6b (second screwing portion 17) of the moving body 6.
[0093] When the screwing action of the second screwing portion 17 works, the movable body 6, the pressing member 7, and the application material M move forward relative to the screw tube 5 and the tubular member 10. As a result, the application material M is fed forward relative to the tubular member 10, and the application material M is made available for use. When the rear tube 3 rotates in the opposite direction (e.g., counterclockwise) relative to the front tube 2, the screw tube 5 rotates synchronously with the rear tube 3, and the screwing action of the first male screw 5b of the screw tube 5 and the first female screw 2v (first screwing portion 16) of the front tube 2 works, causing the screw tube 5 to move backward relative to the front tube 2.
[0094] When the screw tube 5 retracts relative to the front tube 2, the tubular member 10 and the application material M retract together with the screw tube 5. As described above, the screw tube 5 does not rotate in the opposite direction relative to the rear tube 3 (the wall surface 5p4 abuts against the protruding portion 3c), so the rear tube 3, the tail plug 8, and the moving body 6 do not rotate in the opposite direction relative to the screw tube 5. Therefore, in the rotation in the opposite direction, the screwing action of the second screwing portion 17 does not work, so the application material M is not retracted backward relative to the tubular member 10.
[0095] Next, the effects obtained from the coating container 1 according to this embodiment will be described. As shown in Fig. 3, Fig. 4 and Fig. 11(b), the coating container 1 includes a cylindrical member 10 that accommodates the coating material M, and a dispensing mechanism 15 that dispenses the coating material M accommodated in the cylindrical member 10, and the dispensing mechanism 15 dispenses the coating material M, causing the coating material M to protrude from the cylindrical member 10. The shape of the cylindrical hole 10c of the cylindrical member 10 as viewed along the axial direction D1 and the shape of the coating material M as viewed along the axial direction D1 are flattened shapes having a major axis and a minor axis.
[0096] The application material M has a flat surface M1 extending in the axial direction D1 and the longitudinal direction D2, and the cylindrical member 10 has a holding portion 11 that holds the application material M by contacting the flat surface M1. The holding portion 11 that contacts the flat surface M1 of the application material M extends from one end side to the other end side in the axial direction D1 of the flat surface M1. Therefore, since the holding portion 11 extends from one side to the other side in the axial direction D1 of the flat surface M1 while contacting the flat surface M1, the holding portion 11 can hold the application material M in a wide range from one side to the other side in the axial direction D1. Therefore, even when holding the application material M having a flat shape, the holding portion 11 holds the application material M in a range from one side to the other side in the axial direction D1 of the flat surface M1, thereby suppressing deformation and breakage of the application material M.
[0097] In this embodiment, the cross section of the coating material M perpendicular to the axial direction D1 has a flat shape, and the cross section of the cylindrical hole 10c perpendicular to the axial direction D1 has a flat shape from one end to the other end of the axial direction D1 of the flat surface M1. That is, the entire axial direction D1 of the flat surface M1 faces the inner peripheral surface 10d of the cylindrical hole 10c having a flat shape. Therefore, the vibration of the coating material M in the cylindrical hole 10c can be suppressed and the coating material M can be firmly held in the cylindrical hole 10c, so that deformation and breakage of the coating material M can be more reliably suppressed.
[0098] In this embodiment, the holding portion 11 has a protruding shape that protrudes toward the flat surface M1. The cylindrical member 10 has a plurality of holding portions 11 that are aligned along the long axis direction D2 and along the short axis direction D3. The application material M is sandwiched between the plurality of holding portions 11 that are aligned along the short axis direction D3. In this case, since the application material M is held in a state where it is sandwiched between a pair of holding portions 11 that are aligned along the short axis direction D3, the application material M can be held more firmly by the plurality of holding portions 11. As a result, deformation and breakage of the application material M can be more reliably suppressed.
[0099] In this embodiment, the application container 1 includes a front tube 2 that accommodates a tubular member 10 and has a first female screw 2v therein, a rear tube 3 that is connected to the front tube 2 so as to be rotatable relative to the front tube 2, a screw tube 5 that is provided inside the rear tube 3 and has a first male screw 5b that screws into the first female screw 2v and a second female screw 5r formed on its inner surface, and a movable body 6 that moves forward inside the screw tube 5 and has a second male screw 6b that screws into the second female screw 5r.
[0100] The payout mechanism 15 has a first screwing portion 16 that advances the screw tube 5 relative to the front tube 2 by the screwing action of the first male screw 5b and the first female screw 2v when the screw tube 5 rotates relative to the front tube 2, and a second screwing portion 17 that advances the moving body 6 relative to the screw tube 5 by the screwing action of the second female screw 5r and the second male screw 6b when the rear tube 3 rotates relative to the screw tube 5. When the rear tube 3 rotates relative to the front tube 2 in one direction, the screw tube 5 rotates synchronously with the rear tube 3 and advances relative to the rear tube 3 to its forward limit, causing the tubular member 10 and the application material M to protrude forward from the front tube 2.
[0101] When the rear tube 3 rotates in one direction relative to the front tube 2 with the screw tube 5 reaching its forward limit, the rear tube 3 rotates in one direction relative to the screw tube 5 and the moving body 6 advances relative to the screw tube 5, thereby feeding the application material M to the tubular member 10. In this case, the application material M can be advanced together with the tubular member 10 by rotating the rear tube 3 in one direction relative to the front tube 2, so that deformation and breakage of the application material M during feeding of the application material M can be suppressed. In addition, the application material M is fed to the tubular member 10 only when the screw tube 5 reaches its forward limit and the tubular member 10 and the application material M protrude forward from the front tube 2. Therefore, the amount of application material M fed to the tubular member 10 can be reduced, so that breakage of the application material M during application can be more reliably suppressed.
[0102] Next, various modified examples of the applicator container according to the present disclosure will be described. First, an applicator container according to a first modified example will be described with reference to FIG. 15. FIG. 15 is a perspective view showing a tail plug 18 according to a first modified example. In the above-described embodiment, a tail plug 8 having a first holding portion 8b for holding the movable body 6 and a second holding portion 8f for holding the applicator 9 has been described. However, instead of the tail plug 8, the applicator container may be provided with a tail plug 18 that does not have a second holding portion 8f for holding the applicator 9. The applicator container according to the first modified example has the tail plug 18 and does not have a cap 4 and an applicator 9.
[0103] A portion of the configuration of the applicator container according to various modified examples described below is the same as a portion of the configuration of the applicator container 1 described above. The applicator container according to the first modified example is the same as the applicator container 1 except that it has a tail plug 18 instead of the tail plug 8 and does not have the cap 4 and the applicator 9. Therefore, in the following description, the same components as those described above are denoted by the same reference numerals as above, and the description thereof will be omitted as appropriate.
[0104] The tail plug 18 has a first holding portion 18b that holds the movable body 6. The first holding portion 18b has a rod-shaped portion 18c that extends forward from the engagement portion 8c, and a protrusion 18d that protrudes radially outward from the rod-shaped portion 18c and extends along the axial direction D1. The first holding portion 18b has a plurality of protrusions 18d, and the plurality of protrusions 18d are lined up in the circumferential direction.
[0105] The first retaining portion 18b enters the movable body 6 from the rear. The protrusion 18d engages with the recess 6f (see FIG. 8(b)) of the movable body 6 in the rotational direction. The protrusion 18d extends linearly along the axial direction D1 and has a width in the circumferential direction. The protrusion 18d has a front end 18g in which the width of the protrusion 18d narrows toward the front end 18f of the protrusion 18d. At the front end 18g, the width of the protrusion 18d widens as it moves away from the front end 18f. As the protrusion 18d has the front end 18g, the first retaining portion 18b can be easily inserted into the movable body 6.
[0106] Next, an application container according to a second modified example will be described with reference to Figs. 16 to 18. The application container according to the second modified example has a cylindrical member 20 made of two parts, instead of the cylindrical member 10 made of one part. The cylindrical member 20 includes a first component member 21 and a second component member 22 joined to the first component member 21. The first component member 21 and the second component member 22 each have the holding portion 11 described above. The first component member 21 has the flange portion 14 and the connection portion 12 described above.
[0107] Fig. 16 is a perspective view showing the first component member 21, the second component member 22, and the application material M. Fig. 17 is a perspective view showing the first component member 21. As shown in Fig. 16 and Fig. 17, the first component member 21 has a first recess 21b on which the application material M is placed. The first recess 21b has a concave shape into which the application material M fits.
[0108] The first recess 21b is defined by a bottom 21c extending in the axial direction D1 and the longitudinal direction D2, and a pair of side portions 21d extending upward from both ends of the bottom 21c in the longitudinal direction D2. The application material M placed in the first recess 21b is covered by the second component member 22, and the second component member 22 is joined to the first component member 21 in a state where it covers the application material M.
[0109] The first component member 21 and the second component member 22 are joined to each other along a direction perpendicular to the axial direction D1. In the second modified example, the first component member 21 and the second component member 22 are joined to each other while being aligned along the short axis direction D3. Fig. 18 shows a cross section of the tubular member 20 in which the first component member 21 and the second component member 22 are joined, cut along a plane perpendicular to the axial direction D1.
[0110] 16 to 18, the first component member 21 has a first joint portion 23 joined to the second component member 22, and the second component member 22 has a second joint portion 24 joined to the first joint portion 23. The first joint portion 23 protrudes from both ends in the longitudinal direction D2 on each of a pair of side portions 21d of the first component member 21. The first joint portion 23 extends along the axial direction D1.
[0111] The first joint portion 23 has an inclined surface 23b extending obliquely downward from the side portion 21d, a top surface 23c extending downward from the lower end of the inclined surface 23b, and a bottom surface 23d extending from the lower end of the top surface 23c to the side portion 21d. The first component member 21 has a plurality of first joint portions 23, and the plurality of first joint portions 23 are aligned along the axial direction D1. Furthermore, the plurality of first joint portions 23 are aligned along the longitudinal axis direction D2.
[0112] The length (width) of the second component member 22 in the long axis direction D2 is longer than the length (width) of the first component member 21 in the long axis direction D2. The second component member 22 has a second recess 22b that seals the first recess 21b of the first component member 21 and accommodates the first component member 21. The second recess 22b is defined by a top portion 22c extending in the axial direction D1 and the long axis direction D2, and a pair of side portions 22d extending downward from both ends of the top portion 22c in the long axis direction D2.
[0113] The second joint portion 24 extends along the axial direction D1. The second joint portion 24 protrudes toward the center in the long axis direction D2 from each of the pair of side portions 22d of the second component member 22. The second joint portion 24 has a bottom surface 24c of a hole 24b that penetrates the top portion 22c in the short axis direction D3 and is formed on the center side of the side portion 22d in the long axis direction D2, a top surface 24d extending downward from an end portion on the center side in the long axis direction D2 of the bottom surface 24c, and an inclined surface 24f extending obliquely downward from a lower end of the top surface 24d toward the side portion 22d.
[0114] The second component member 22 has a plurality of second joint portions 24, and each of the second joint portions 24 is joined to each of the first joint portions 23. More specifically, when the first component member 21 enters the second recess 22b of the second component member 22, the inclined surface 23b of the first joint portion 23 abuts against the inclined surface 24f of the second joint portion 24. Then, the first joint portion 23 moves upward over the second joint portion 24, and the second component member 22 is joined to the first component member 21 in a state in which the lower surface 23d faces the bottom surface 24c.
[0115] As described above, the cylindrical member 20 according to the second modified example includes the first component member 21 and the second component member 22 joined to the first component member 21. In this case, the application material M can be held between the first component member 21 and the second component member 22. Therefore, by joining the second component member 22 to the first component member 21 with the application material M interposed between the first component member 21 and the second component member 22, the application material M can be easily loaded into the cylindrical member 20.
[0116] In the second modified example, the first component 21 and the second component 22 are joined to each other along a direction perpendicular to the axial direction D1. In this case, the coating material M can be held between the first component 21 and the second component 22 that face each other along a direction perpendicular to the axial direction D1, so that the coating material M can be easily loaded and held.
[0117] The first component member 21 has a first joint portion 23 joined to the second component member 22, and the second component member 22 has a second joint portion 24 joined to the first joint portion 23, and the first joint portion 23 and the second joint portion 24 extend along the axial direction D1. In this case, since the first joint portion 23 and the second joint portion 24 both extend along the axial direction D1, it is possible to easily join the second component member 22 to the first component member 21.
[0118] The first component member 21 has a first recess 21b that accommodates the coating material M and extends along the axial direction D1, and the second component member 22 has a second recess 22b that seals the first recess 21b that accommodates the coating material M and accommodates the first component member 21. In this case, the first recess 21b can be sealed and the first component member 21 can be accommodated in the second recess 22b in a state in which the coating material M is accommodated in the first recess 21b of the first component member 21. Therefore, loading of the coating material M and joining of the second component member 22 to the first component member 21 can be easily performed.
[0119] As described above, as the second modified example, an example in which the first component 21 and the second component 22 are joined to each other along a direction perpendicular to the axial direction D1 has been described. However, the first component and the second component may be joined to each other along a direction intersecting the axial direction D1 (for example, a direction extending obliquely with respect to the axial direction D1) rather than a direction perpendicular to the axial direction D1. In this way, the direction in which the first component and the second component are joined is not particularly limited.
[0120] Fig. 19 is a cross-sectional view showing a cylindrical member 30 having a first component member 31 and a second component member 32 according to the third modified example. As shown in Fig. 19, the cylindrical member 30 differs from the cylindrical member 20 according to the second modified example in that it has a holding portion 33 having a shape different from that of the holding portion 11. Each of the first component member 31 and the second component member 32 has the holding portion 33 that contacts the flat surface M1 of the application material M.
[0121] The retaining portion 33 is a protruding curved surface that contacts the flat surface M1. The retaining portion 33 is formed on each of the bottom portion 21c and the top portion 22c. The retaining portion 33 protrudes toward the center of the cylindrical member 30 in the minor axis direction D3 as it approaches the center of the cylindrical member 30 in the major axis direction D2.
[0122] As described above, in the tubular member 30 according to the third modified example, the holding portion 33 holds the applying material M in a state of contacting the flat surface M1 of the applying material M inside the tubular member 30, and therefore the applying material M can be firmly held and deformation and breakage of the applying material M can be suppressed. Therefore, the tubular member 30 can provide the same effects as the tubular member 10 and the tubular member 20 described above.
[0123] 20 is an exploded perspective view showing an applicator container 41 according to a fourth modified example. The applicator container 41 has a tubular member 50 that is different from the above-described tubular member 10. The tubular member 50 has a first component member 51 housed in the front tube 2 and a second component member 52 inserted into a middle tube 42 connected to the rear tube 3.
[0124] The first component member 51 and the second component member 52 are joined to each other along the axial direction D1. The first component member 51 has a housing portion 53 into which the second component member 52 fits from the rear. The second component member 52 has an insertion portion 54 that fits into the housing portion 53. The housing portion 53 and the insertion portion 54 are, for example, rectangular box-shaped.
[0125] The housing portion 53 has a through hole 53b penetrating the housing portion 53. The through hole 53b penetrates a side surface portion 53c of the housing portion 53, which extends in the axial direction D1 and the major axis direction D2, in the minor axis direction D3. The through hole 53b has a rectangular shape. The insertion portion 54 has a protrusion 54b that fits into the through hole 53b.
[0126] The protrusion 54b protrudes outward in the short axis direction D3 from a side surface portion 54c of the insertion portion 54 extending in the axial direction D1 and the long axis direction D2. The protrusion 54b has an inclined surface 54b1 extending obliquely radially outward toward the rear relative to the side surface portion 54c, and a top surface 54b2 extending in the axial direction D1 from an end of the inclined surface 54b1 opposite the side surface portion 54c.
[0127] 21(a), 21(b), and 21(c) are perspective views showing a procedure for assembling the application container 41 by loading the application material M into the cylindrical member 50. As shown in Fig. 21(a) and Fig. 21(b), the second component member 52 is inserted into the middle cylinder 42 from the front, and the application material M is inserted into the second component member 52 from the front.
[0128] At this time, the tip portion M4 of the application material M is in a state of protruding from the second component member 52. Then, as shown in FIG. 21(b) and FIG. 21(c), the first component member 51, which is provided with a plurality of holding portions 11 for holding the application material M, is joined to the second component member 52. At this time, the insertion portion 54 enters the storage portion 53, and the inclined surface 54b1 of the insertion portion 54 abuts against the inner surface of the storage portion 53. Then, the insertion portion 54 moves forward relative to the storage portion 53, and the first component member 51 is joined to the second component member 52 in a state in which the convex portion 54b enters the through hole 53b. Thereafter, the front tube 2 is attached to the middle tube 42 so as to cover the second component member 52 and the first component member 51, and the assembly of the application container 41 is completed.
[0129] As described above, in the application container 41 according to the fourth modified example, the first component member 51 and the second component member 52 are joined to each other along the axial direction D1. In this case, since the first component member 51 is joined to the second component member 52 along the axial direction D1, joining of the first component member 51 to the second component member 52 can be easily performed.
[0130] FIG. 22 is a perspective view showing the front tube 2, the rear tube 3, the cylindrical member 70, and the application material M of the application container 61 according to the fifth modified example. FIG. 23(a) is a perspective view showing a first component member 71 constituting the cylindrical member 70. FIG. 23(b) is a perspective view showing a second component member 72 constituting the cylindrical member 70. As shown in FIG. 22, FIG. 23(a), and FIG. 23(b), the cylindrical member 70 includes the first component member 71 and the second component member 72 joined to the first component member 71. The first component member 71 and the second component member 72 are joined to each other along the minor axis direction D3.
[0131] The cylindrical member 70 has a leaf spring portion 75 that contacts the coating material M, instead of the above-mentioned protruding retaining portion 11. In the coating container 61, the leaf spring portion 75 functions as a retaining portion. The leaf spring portion 75 is elastically deformable along the thickness direction (minor axis direction D3) of the coating material M. For example, the leaf spring portion 75 includes a first leaf spring portion 76 of the first component member 71 and a second leaf spring portion 77 of the second component member 72. The first leaf spring portion 76 is defined by a slit 76b. The slit 76b penetrates the first component member 71 in the minor axis direction D3.
[0132] The slit 76b includes a pair of first slits 76b1 and a second slit 76b2 that connects the pair of first slits 76b1 to each other. The first slits 76b1 extend in the axial direction D1, and the pair of first slits 76b1 are aligned along the long axis direction D2. The second slit 76b2 extends in the long axis direction D2 so as to connect the front ends of the pair of first slits 76b1 to each other. The slit 76b has a U-shape due to the pair of first slits 76b1 and second slit 76b2.
[0133] The second leaf spring portion 77 is defined by slits 77b penetrating the second component member 72 in the minor axis direction D3, similar to the first leaf spring portion 76. The slits 77b include a pair of first slits 77b1 and a second slit 77b2 connecting the pair of first slits 77b1 to each other. The configurations of the first slits 77b1 and the second slits 77b2 are similar to the configurations of the first slits 76b1 and the second slits 76b2 described above.
[0134] The first component 71 has a bottom 71b extending in the axial direction D1 and the longitudinal direction D2, and a pair of side portions 71c protruding in the same direction from both ends of the bottom 71b in the longitudinal direction D2. The first leaf spring portion 76 protrudes in a curved shape in a direction in which the side portions 71c protrude as it approaches the center of the first leaf spring portion 76 in the axial direction D1. The second component 72 also has a bottom 72b and side portions 72c similar to the first component member 71, and the second leaf spring portion 77 protrudes in a curved shape in a direction in which the side portions 72c protrude as it approaches the center of the second leaf spring portion 77 in the axial direction D1.
[0135] The coating material M is loaded into the cylindrical member 70 configured as above by inserting the coating material M from the front. In a state in which the first component member 71 is joined to the second component member 72, the central portion of the leaf spring portion 75 in the axial direction D1 protrudes in a curved shape toward the center of the cylindrical member 70 in the short axis direction D3.
[0136] Therefore, when the coating material M is inserted into the cylindrical hole 10c of the cylindrical member 70, the coating material M comes into contact with the first leaf spring portion 76 and the second leaf spring portion 77, and the coating material M is inserted while pushing and spreading the first leaf spring portion 76 and the second leaf spring portion 77 toward both ends in the short axis direction D3. In the inserted state, the coating material M is pressed down from both sides in the short axis direction D3 by the first leaf spring portion 76 and the second leaf spring portion 77, so that the coating material M can be firmly held in the cylindrical hole 10c.
[0137] As described above, in the application container 61 according to the fifth modified example, the shape of the cylindrical hole 10c of the cylindrical member 70 as viewed along the axial direction D1 and the shape of the application material M as viewed along the axial direction D1 are flattened with a major axis and a minor axis, and the application material M has a flat surface extending in the axial direction D1 and the major axis direction D2. The cylindrical member 70 has a holding portion that holds the application material M by contacting the flat surface, and the holding portion is a leaf spring portion 75 defined by slits 76b and 77b formed in the cylindrical member 70. The leaf spring portion 75 contacts the application material M and elastically deforms along the thickness direction of the cylindrical member 70. Therefore, the elastically deformed leaf spring portion 75 contacts the flat surface, so that the application material M can be held over a wide range. Therefore, even when holding the application material M having a flat shape, the leaf spring portion 75 contacts the flat surface to hold the application material M, so that the application material M can be held with an appropriate holding force and deformation and breakage of the application material can be suppressed. Therefore, the coating container 61 according to the fifth modified example provides the same effects as those of the coating container 1 according to the above-described embodiment.
[0138] In the fifth modified example, the leaf spring portion 75 is configured by the first leaf spring portion 76 of the first component member 71 and the second leaf spring portion 77 of the second component member 72. However, the leaf spring portion 75 may be formed only on either the first component member 71 or the second component member 72. Furthermore, the above-mentioned cylindrical member 10, cylindrical member 20, cylindrical member 30, or cylindrical member 50 may have the leaf spring portion 75.
[0139] In the cylindrical member 70 according to the fifth modified example, the first component member 71 and the second component member 72 are joined to each other along a direction (short axis direction D3) perpendicular to the axial direction D1. However, in the cylindrical member according to the fifth modified example having the leaf spring portion 75, the first component member and the second component member may be joined to each other along the axial direction D1, or may be joined to each other along a direction intersecting the axial direction D1 (for example, a direction extending obliquely with respect to the axial direction D1). Thus, even in the fifth modified example, the direction in which the first component member and the second component member are joined is not particularly limited.
[0140] The above describes the embodiment and various modified examples of the applicator container according to the present disclosure. However, the applicator container according to the present disclosure is not limited to the above-mentioned embodiment or modified example, and may be further modified within the scope of the gist described in the claims. That is, the shape, size, material, number and arrangement of each part of the applicator container according to the present disclosure can be appropriately changed within the scope of the above-mentioned gist. The above describes the embodiment and the first to fifth modified examples of the applicator container. The applicator container according to the present disclosure may be an applicator container in which a part of the form selected from the embodiment and the first to fifth modified examples is combined with the remaining part different from the form. In this way, the above-mentioned embodiment and the first to fifth modified examples can be appropriately combined.
[0141] For example, in the above-described embodiment, the application container 1 has been described, which includes the front tube 2, the rear tube 3, the screw tube 5, and the moving body 6, and the feeding mechanism 15 has the first screwing portion 16 that advances the screw tube 5 relative to the front tube 2, and the second screwing portion 17 that advances the moving body 6 relative to the screw tube 5. However, the application container may be a container that does not have at least any of the front tube 2, the rear tube 3, the screw tube 5, and the moving body 6, and the feeding mechanism may be a mechanism that does not have at least any of the first screwing portion 16 and the second screwing portion 17.
[0142] In the above-described embodiment, the applicator container 1 has been described as having a dispensing mechanism 15 that dispenses the application material M by the relative rotation of the rear tube 3 in one direction with respect to the front tube 2. However, the applicator container may have a dispensing mechanism that does not dispense by relative rotation. In other words, the applicator container may have a dispensing mechanism that is a mechanical extrusion mechanism such as a knock type instead of relative rotation, and may extrude the drawing material by the dispensing mechanism, or may have a squeeze type dispensing mechanism.
[0143] In the above-described embodiment, the application container 1 is described that includes the application material M, which is a cosmetic. However, the application material may be something other than a cosmetic. For example, the application material may be a core material used in writing implements such as crayons. In this way, the application container according to the present disclosure is not limited to cosmetics, and can be applied to various application materials such as writing implements or stationery. [Explanation of symbols]
[0144] 1...application container, 2...front tube, 2b...tip opening, 2d...tip, 2f...tapered surface, 2g...smooth surface, 2g1...protruding region, 2h...curved surface, 2j...tip, 2k...inner surface, 2k1...first inner surface, 2k2...second inner surface, 2p...recess, 2p1...first recess, 2p2...second recess, 2q...tubular portion, 2r...step portion, 2s...protruding portion, 2t...through hole, 2v...first female screw, 2w...rear end, 2x...center, 3...rear tube, 3b...inner surface, 3c...protruding portion, 3c1...first portion, 3c2...second portion, 3c3...inclined portion, 3d...outer surface, 3f...annular protruding portion, 3g...annular recess, 3h...knurling, 3j...annular recess, 3k...annular protruding portion, 4...cap, 5...screw barrel, 5b...first male screw, 5c...first cylindrical portion, 5d...second cylindrical portion, 5f...flange portion, 5g...cylindrical portion, 5h...window portion, 5j...slit, 5j1...first slit, 5j2...second slit, 5k...spring portion, 5p...projection portion, 5p1...first inclined surface, 5p2...second inclined surface, 5p3...top surface, 5p4...wall surface, 5q...outer surface, 5r...second female screw, 5s...slit, 5t...rear end, 6...moving body, 6b...second male screw, 6c...connection portion, 6d...inner surface, 6f...recess, 6g...window portion, 6h...through hole, 6j...front end, 6k...hole portion, 6p...inner surface, 6q...inclined surface, 6r...top surface, 7...pressure member, 7b... Rear end, 7c...outer surface, 7d...annular convex part, 7f...top surface, 7g...slanted surface, 7h...rotation stopper, 7j...extrusion part, 7k...first plate-shaped part, 7p...second plate shaped part, 7q...tip surface, 8...tail plug, 8b...first holding part, 8c...engaging part, 8d...flange part, 8f...second holding part, 8g...hole part, 8h...outer cylinder part, 8j...inner part Cylindrical part, 8k...rib, 8p...annular convex part, 8q...convex part, 9...applicator, 10...cylindrical member, 10b...opening, 10c...cylindrical hole, 10d...inner peripheral surface, 10f ...First tube hole, 10g...Second tube hole, 10h...Tip, 11...Holding part, 12...Connection part, 12b...Hole part, 12c...Protrusion part, 12d...Rear end, 12f ...first hole portion, 12g...second hole portion, 13...holding tube portion, 13b...first side portion, 13c...second side portion, 13d...flat surface, 13d1...first flat surface, 13d2...second flat surface, 13f...projection portion, 13f1...first portion, 13f2...second portion, 13g...step portion, 14...flange portion, 15...extension mechanism, 16...first screw-on portion, 17...second screw-on portion, 18...tail plug, 18b...first holding portion, 18c...rod-shaped portion, 18d...projection portion, 18f...front end, 18g...front end, 20...tubular member, 21...first component member, 21b...first recessed portion, 21c...bottom portion, 21d...side portion, 22...second component member, 22b...second recessed portion, 22c...top portion,22d...side portion, 23...first joint portion, 23b...inclined surface, 23c...top surface, 23d...lower surface, 24...second joint portion, 24b...hole, 24c...bottom surface, 24d...top surface, 24f...inclined surface, 30...tubular member, 31...first component member, 32...second component member, 33...holding portion, 41...application container, 42...middle tube, 50...tubular member, 51...first component member, 52...second component member, 53...accommodation portion, 53b...through hole, 53c...side portion, 54...insertion portion, 54b...projection portion, 54b1...inclined surface, 54b2...top surface, 54c...side portion, 61...application container, 70...tubular member, 71...first component member, 7 1b...bottom, 71c...side, 72...second component, 72b...bottom, 72c...side, 75...leaf spring, 76...first leaf spring, 76b...slit, 76b1...first slit, 76b2...second slit, 77...second leaf spring, 77b...slit, 77b1...first slit, 77b2...second slit, A...reference line, D1...axial direction, D2...long axis direction, D3...short axis direction, D4...rotation direction, L...axial line, L11...long axis, L12...short axis, L21...long axis, L22...short axis, M...coating material, M1...flat surface, M2...side surface, M3...tip surface, M4...tip, M5...rear end surface.
Claims
1. An application container for dispensing a coating material, A cylindrical member having a cylindrical hole for accommodating the coating material and an opening through which the coating material is exposed; a feeding mechanism that advances the application material contained in the cylindrical hole to project the application material from the opening; Equipped with The shape of the cylindrical hole as viewed along an axial direction, which is a direction in which the axis of the cylindrical member extends, and the shape of the coating material as viewed along the axial direction are flattened shapes having a major axis and a minor axis, The coating material has a thickness in a minor axis direction in which the minor axis extends, The coating material has a major axis direction in which the major axis extends and a flat surface extending in the axial direction, The cylindrical member has a holding portion that holds the application material by contacting the flat surface, The holding portion extends from one end side to the other end side of the flat surface in the axial direction when in contact with the flat surface. Coating container.
2. An application container for dispensing a coating material, A cylindrical member having a cylindrical hole for accommodating the coating material and an opening through which the coating material is exposed; a feeding mechanism that advances the application material contained in the cylindrical hole to project the application material from the opening; Equipped with The shape of the cylindrical hole as viewed along an axial direction, which is a direction in which the axis of the cylindrical member extends, and the shape of the coating material as viewed along the axial direction are flattened shapes having a major axis and a minor axis, The coating material has a thickness in a minor axis direction in which the minor axis extends, The coating material has a major axis direction in which the major axis extends and a flat surface extending in the axial direction, The cylindrical member has a holding portion that holds the application material by contacting the flat surface, the retaining portion is a leaf spring portion defined by a slit formed in the cylindrical member, The leaf spring portion contacts the application material and elastically deforms along the thickness direction of the cylindrical member. Coating container.
3. The holding portion has a protruding shape that protrudes toward the flat surface, The cylindrical member has a plurality of holding portions aligned along the long axis direction and aligned along the short axis direction, The coating material is sandwiched between a plurality of the holding portions arranged along the short axis direction. The application container according to claim 1 .
4. The tubular member includes a first component and a second component joined to the first component. The application container according to claim 1 or 2.
5. The first component and the second component are joined to each other along a direction perpendicular to the axial direction. The application container according to claim 4.
6. The first component and the second component are joined to each other along the axial direction. The application container according to claim 4.
7. a leading tube that houses the cylindrical member and has a first female screw therein; a rear tube connected to the front tube so as to be capable of rotating relative to the front tube; a screw tube provided inside the rear tube and having a first male screw that screws into the first female screw and a second female screw formed on an inner surface thereof; a moving body that moves forward inside the screw tube and has a second male screw that screws into the second female screw; Equipped with The payout mechanism includes: a first screwing portion that advances the screw tube with respect to the front tube by a screwing action between the first female screw and the first male screw when the screw tube rotates relative to the front tube; a second screwing portion that advances the movable body with respect to the screw tube by a screwing action between the second female screw and the second male screw when the rear tube rotates relative to the screw tube; having When the rear cylinder rotates relative to the front cylinder in one direction, the screw cylinder rotates synchronously with the rear cylinder and advances to a forward limit relative to the rear cylinder, causing the tubular member and the application material to protrude forward from the front cylinder; When the rear cylinder rotates relative to the front cylinder in the one direction in a state where the screw cylinder has reached the forward limit, the rear cylinder rotates relative to the screw cylinder and the moving body advances relative to the screw cylinder, thereby delivering the application material to the tubular member. The application container according to claim 1 or 2.
Citation Information
Patent Citations
Application container
JP2021151379A