Dispensing container
The dispensing container design with a transparent inner and opaque outer components, incorporating UV protection, addresses the issue of content deterioration in transparent containers by maintaining visibility and stability.
Patent Information
- Application Number
- JP2024166198
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2026-04-06
AI Technical Summary
Transparent dispensing containers allow light to penetrate, causing deterioration of solid contents due to UV rays, while maintaining transparency for content visibility is desirable.
A dispensing container design with a transparent inner container and opaque outer and cap components, featuring UV-absorbing or scattering properties, allows content visibility while preventing light exposure.
Stabilizes the solid contents by reducing light exposure and enables easy monitoring of remaining amounts without accelerating deterioration.
Smart Images

Figure 2026058609000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a dispensing container.
Background Art
[0002] There is a dispensing container that stores a solid content such as solid paste in a cylindrical storage portion and dispenses and uses this solid content. Generally, the dispensing container is entirely opaque, but there are also transparent dispensing containers (see paragraph
[0017] of Patent Document 1). The transparent dispensing container has the advantages that it is easy to grasp the remaining amount of the solid content and the mouthpiece for application is easy to see. On the other hand, since the solid content is a chemical composition, it is usually desirable to store it in a dark place in order to prevent deterioration due to light such as ultraviolet rays. For example, a solid content colored using a dye with relatively low light resistance is likely to discolor and fade when stored in an environment exposed to light such as sunlight.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] If the dispensing container is transparent, light passes through the dispensing container and irradiates the solid content, so the solid content may deteriorate over time. Therefore, it is difficult to prevent the deterioration of the solid content due to light such as ultraviolet rays while making the dispensing container transparent.
[0005] An object of the present invention is to provide a dispensing container that can stably store a solid content and is easy to grasp the remaining amount.
Means for Solving the Problems
[0006] To solve the above problems, the present invention provides a dispensing container for dispensing solid contents, comprising: a container portion having an opening on the front side from which the solid contents are dispensed, an inner container for housing the solid contents inside, and an outer container covering the outer circumference of the inner container; a cap body that is detachable from the container portion so as to cover the opening; and an operating shaft portion for dispensing the solid contents contained in the inner container axially from the opening, wherein the inner container is transparent or translucent so that the solid contents contained inside are visible, and the cap body and the outer container are opaque so that the inside is not visible.
[0007] The cap body may be detachably attached to the outer circumference of the front side of the inner container.
[0008] Preferably, the inner container is provided with a function to absorb or scatter ultraviolet light.
[0009] The inner container comprises a cap mounting portion provided on the front side, an inner container body provided behind the cap mounting portion, and a flange portion that protrudes outward from the outer surface of the front side of the inner container body and is arranged on the outer circumference of the inner container body. Preferably, the external shapes of the front side of the outer container and the rear side of the flange portion in a cross-section perpendicular to the axial direction are substantially equal.
[0010] It is preferable that the external shapes of the front side of the outer container and the rear side of the cap body in a cross-section perpendicular to the axial direction are substantially equal.
[0011] It is preferable that the color of the holder that holds the solid contents inside the inner container is different from the color of the solid contents. [Effects of the Invention]
[0012] According to the present invention, it is possible to provide a dispensing container that can stably store solid contents and allows for easy monitoring of the remaining amount. [Brief explanation of the drawing]
[0013] [Figure 1] This is a perspective view of the dispensing container 1 of the embodiment, seen from an oblique angle in front. [Figure 2] This is an exploded perspective view of the dispensing container 1 of the embodiment, which contains solid contents 100, as seen from an oblique front angle. [Figure 3] This is an exploded perspective view of the dispensing container 1 of the embodiment, which contains solid contents 100, as seen from the rear at an oblique angle. [Figure 4] This is a cross-sectional view of the dispensing container 1 of the embodiment, containing the solid contents 100, taken along the IV-IV direction as shown in Figure 1. [Modes for carrying out the invention]
[0014] The following describes a dispensing container 1 according to an embodiment of the present invention. The dispensing container 1 is a container that holds solid contents 100 inside and allows the user to dispense the required amount of solid contents 100. Hereinafter, the side from which the solid contents 100 are dispensed will be referred to as the front, the opposite side as the rear, and the dispensing direction (front-back direction) as the axis Z direction. In a cross-section of the dispensing container 1 perpendicular to the axis Z direction, the outer shape is approximately square. Hereinafter, the direction perpendicular to the axis Z direction and approximately parallel to one side of the square will be referred to as the X direction, and the direction perpendicular to the axis Z direction and the X direction and approximately parallel to the other side of the square will be referred to as the Y direction.
[0015] Figure 1 is a perspective view of the dispensing container 1 of the embodiment, viewed from the front at an oblique angle. Figure 2 is an exploded perspective view of the dispensing container 1 of the embodiment, including the solid contents 100, viewed from the front at an oblique angle. Figure 3 is an exploded perspective view of the dispensing container 1 of the embodiment, including the solid contents 100, viewed from the rear at an oblique angle. Figure 4 is a cross-sectional view of the dispensing container 1 of the embodiment, including the solid contents 100, taken along the IV-IV direction shown in Figure 1.
[0016] (solid content 100) The solid content 100 contained in the dispensing container 1 of the embodiment is, for example, a solid paste of "Kieiro" (registered trademark, Tombow Pencil Co., Ltd.) which is a weakly alkaline white solid paste with a pH indicator mixed therein to exhibit a colored (blue) state. When this solid paste is applied to a paper surface or the like, it is neutralized by CO2 in the air or the acidic components of the paper, and the pH indicator changes from blue to colorless, and the color of the paste changes from blue to white. However, the solid content contained in the dispensing container of the present invention is not limited to this, and may be a solid paste that does not contain a pH indicator, or may be a lipstick, lip cream, solid drawing material, etc. other than the solid paste.
[0017] The solid content 100 has a substantially square cross-sectional shape perpendicular to the Z-axis direction and is substantially a rectangular parallelepiped as a whole, with the rear side held by the holding body 40 described later. Thus, when the cross-sectional shape of the solid content 100 perpendicular to the Z-axis direction is a quadrangle such as a square or a rectangle, it is easier to apply paint to the corners etc. compared to the case where the cross-sectional shape is circular, and it is more convenient to use. However, the cross-sectional shape of the solid content 100 is not limited to this, and may be, for example, a circular shape, a triangular shape, a hexagonal shape, etc.
[0018] (Dispensing container 1) The dispensing container 1 is substantially a rectangular parallelepiped as a whole, and has a substantially square cross-sectional shape perpendicular to the Z-axis direction that is one size larger than the cross-sectional shape of the solid content 100.
[0019] The dispensing container 1 has an opening 14a on the front side, and includes an inner container 10 that houses the solid content 100 inside, a cap body 20 that is detachable from the front side of the inner container 10 so as to cover the opening 14a, a holding body 40 that holds the solid content 100 inside the inner container 10, an operation shaft portion 50 that drives the solid content 100 held by the holding body 40 in the Z-axis direction together with the holding body 40 and performs an operation of feeding out the solid content 100 from the opening, and an outer container cover 60 that covers the outside of the inner container 10. Note that the inner container 10 and the outer container 60 are combined to form a container portion 2.
[0020] (Inner container 10) The inner container 10 has a housing cylinder part 11 that houses the solid content 100, and a rear cylinder part 12 (shown in FIGS. 3 and 4) that extends rearward from the housing cylinder part 11.
[0021] (Housing cylinder part 11) The housing cylinder part 11 houses the solid content 100 and the holding body 40 that holds the solid content 100 so as to be movable in the axial Z direction. The housing cylinder part 11 is a square tube member having a substantially square cross-sectional shape orthogonal to the axial Z direction, and includes a container body 13, a cap mounting part 14 that extends further forward from the front side of the container body 13, and a flange part 15 disposed on the outer periphery of the front side of the container body 13.
[0022] The inner surface of the housing cylinder part 11 is substantially square with a substantially constant cross-sectional shape in the axial Z direction. That is, there is no step between the container body 13 and the cap mounting part 14 on the inner surface, and they are flush. Note that a housing cylinder part rib 11a extending in the axial Z direction is provided on the inner surface of the housing cylinder part 11, and by the housing cylinder part rib 11a contacting the outer peripheral surface of the holding body 40, rattling between the holding body 40 and the housing cylinder part 11 is prevented.
[0023] (Container body 13) The container body 13 has a substantially constant square tube shape in the outer surface shape in a cross-section orthogonal to the axial Z direction.
[0024] (Flange part 15) The flange part 15 protrudes outward from the outer surface of the container body 13 on the front side of the container body 13. In the embodiment, it extends forward so as to surround the outer periphery of the front side of the container body 13, and a groove part 16 is formed between the outer surface of the container body 13 and the flange part 15.
[0025] (Groove part 16) The groove part 16 is open at the front side and extends annularly over the entire circumference of the container body 13. A seal body 30 is disposed inside the groove part 16.
[0026] Also, a notch 15b extending from the front side to the rear side is formed on the end face of the flange part 15 outside the groove part 16.
[0027] (Seal body 30) The seal body 30 is an annular elastic member positioned inside the groove 16. The material of the seal body 30 is not particularly limited as long as it is an elastic material with excellent sealing performance. For example, thermoplastic elastomers such as olefin-based, polyester-based, vinyl chloride-based, styrene-based, polyamide-based, urethane-based, and 1,2-polybutadiene-based materials, synthetic rubbers such as butyl rubber, and natural rubber can be used.
[0028] (Cap mounting section 14) The cap mounting portion 14 extends further forward from the flange portion 15 on the front side of the inner container body 13. The outer surface shape of the cap mounting portion 14, perpendicular to the axis Z direction, is similar in shape to the front end of the inner container body 13, but the outer diameter gradually becomes smaller and thinner from the front end of the inner container body 13. An opening 14a from which the solid contents 100 are dispensed is provided at the front end of the cap mounting portion 14.
[0029] On each of the two outer surfaces of the cap mounting portion 14 on both sides in the X direction, there are mounting portion side mounting protrusions 14x that extend in the Y direction and have a roughly triangular cross-sectional shape in the ZX direction. On each of the two outer surfaces of the cap mounting portion 14 on both sides in the Y direction, there are mounting portion side mounting protrusions 14y that extend in the X direction and have a roughly triangular cross-sectional shape in the ZY direction.
[0030] In this embodiment, the mounting portion side mounting projection 14x and the mounting portion side mounting projection 14y have the same shape, and a gentle slope is formed on their front side, where the height (distance from the outer surface of the cap mounting portion 14) gradually increases from the front to the rear. On the rear side of the mounting portion side mounting projection 14x and the mounting portion side mounting projection 14y, a steep slope is formed, where the height suddenly decreases from the front to the rear.
[0031] (Rear cylinder part 12) A circular hole is provided on the bottom surface of the inner container body 13, and a rear cylindrical portion 12 is connected to the outer circumference of the hole, extending towards the rear. The rear cylindrical portion 12 has a large diameter portion 12a and a small diameter portion 12b that extends rearward from the large diameter portion 12a.
[0032] An annular cylinder-side locking rib 12c extending in the circumferential direction is formed on the inner surface of the rear end of the large-diameter portion 12a. The inner surface of the small-diameter portion 12b is a sleeve-side airtight sealing surface 12e.
[0033] (outer container 60) The outer container 60 is a rectangular tube member and covers the outer surface of the inner container body 13 from the flange portion 15 to the outer circumference of the rear tube portion 12.
[0034] (Holding body 40) The holder 40 is a bottomed cylindrical member with a substantially square cross-section perpendicular to the axis Z direction. The holder 40 is positioned inside the storage cylinder 11, holding the rear of the solid contents 100. The cross-sectional shape of the outer surface of the holder 40 perpendicular to the axis Z direction is substantially the same as the cross-sectional shape of the inner surface of the storage cylinder 11. A through-screw hole 41 is formed at the bottom of the holder 40, through which the shaft screw portion 53, described later, is inserted and screwed. In addition, a holder-side stopper rib 42 (shown in Figure 3) is formed on the rear side of the through-screw hole 41 at the bottom of the holder 40.
[0035] (Operation shaft part 50) The operating shaft portion 50 is a member that dispenses the solid contents 100 contained in the inner container 10 in the direction of axis Z. The operating shaft portion 50 has a shaft base portion 51 that covers the rear ends of the outer container 60 and the inner container 10, a shaft base portion 52 that extends forward from the shaft base portion 51, and a shaft thread portion 53 that extends forward from the shaft base portion 52 into the interior of the inner container 10 and is screwed into the through-thread hole 41 of the holder 40.
[0036] The shaft base 52 protrudes forward from the central part of the shaft bottom 51. The shaft base 52 comprises a cylindrical rear shaft base 52a with a substantially constant diameter extending from rear to front, a shaft base inclined portion 52b extending forward from the rear shaft base 52a, gradually decreasing in diameter, and then extending forward again with a constant diameter, and a shaft base front portion 52c provided in front of the shaft base inclined portion 52b, having a larger diameter than the front end of the shaft base inclined portion 52b, and then gradually decreasing in diameter again. A rearward-facing shaft-side locking surface 52d is formed on the stepped portion provided on the outer surface between the shaft base inclined portion 52b and the shaft base front portion 52c.
[0037] The shaft threaded portion 53 is an elongated rod-shaped member extending forward from the shaft base portion 52. Two shaft-side stopper ribs 53a (shown in Figure 2) are formed on the outer circumference of the rear end root of this shaft threaded portion 53. The outer circumference of the shaft threaded portion 53 in front of the portion where the shaft-side stopper ribs 53a are formed is threaded.
[0038] As shown in Figure 4, the shaft base 52 of the operating shaft 50 is located inside the rear cylindrical portion 12 of the inner container 10, and the shaft threaded portion 53 is screwed into the through-threaded hole 41 of the holder 40 inside the housing cylindrical portion 11 of the inner container 10, and extends further forward into the solid contents 100 held by the holder 40.
[0039] The inner container 10 is restricted from moving forward by the operating shaft 50 because the front surface of the cylindrical locking rib 12c is in contact with the shaft-side locking surface 52d of the operating shaft 50. In addition, the inner container 10 is restricted from moving backward by the outer container 60 because the rear surface 15a of the flange 15 is in contact with the front end surface 60a of the outer container 60.
[0040] The operating shaft portion 50 is restricted from moving forward by the outer container 60 because its shaft bottom wall portion 51a is in contact with the rear end surface 60b of the outer container 60. Furthermore, as described above, the operating shaft portion 50 is restricted from moving backward by the inner container 10 because its shaft-side locking surface 52d is in contact with the front surface of the cylindrical locking rib 12c of the inner container 10.
[0041] As described above, the outer container 60 has its front end surface 60a in contact with the rear surface 15a of the flange portion 15 of the inner container 10, so its forward movement is restricted by the inner container 10. Also, as described above, the outer container 60 has its rear end surface 60b in contact with the shaft bottom wall portion 51a of the operating shaft portion 50, so its rearward movement is restricted by the operating shaft portion 50.
[0042] As described above, the positions of the outer container 60, the inner container 10, and the operating shaft 50 in the axial Z direction are fixed, and the dispensing container 1 maintains the assembled state shown in Figure 4.
[0043] As shown in Figures 2 and 4, four holes 13a are provided on the outer circumference of the inner container body 13, behind the inner bottom surface, and as shown in Figures 3 and 4, protrusions 60c are provided on the inner circumferential surface of the outer container 60 at positions corresponding to each of the holes 13a. The engagement between the holes 13a and the protrusions 60c restricts the movement of the outer container 60 in the axial Z direction relative to the inner container 10.
[0044] Furthermore, outer container ribs 60d extending in the axial Z direction are provided on the inner circumferential surface of the outer container 60. These outer container ribs 60d contact the outer circumferential surface of the inner container body 13, thereby preventing rattling between the inner container 10 and the outer container 60.
[0045] (Cap body 20) The cap body 20 is a rectangular tube member with a closed front end, and its inner surface has a cross-sectional shape perpendicular to the Z-axis direction that is substantially the same as the outer surface shape of the cap mounting portion 14, and it can be inserted into and removed from the cap mounting portion 14 in the Z-axis direction without relative rotation.
[0046] The cap body 20 has two cap-side mounting protrusions 20x formed on each inner surface on both sides in the X direction, each extending in the Y direction and having a roughly triangular cross-sectional shape in the ZX direction. The cap body 20 also has two cap-side mounting protrusions 20y formed on each inner surface on both sides in the Y direction, each extending in the X direction and having a roughly triangular cross-sectional shape in the ZY direction. The cap-side mounting protrusions 20x and 20y have the same shape, and a gentle slope is formed where the height (distance from the inner surface of the cap body 20) gradually increases from the rear to the front. The front side of the cap-side mounting protrusions 20x and 20y has a steep slope that abruptly decreases from the rear to the front.
[0047] The cap-side mounting protrusions 20x and 20y are positioned behind the mounting portion-side mounting protrusions 14x and 14y formed on the outer surface of the cap mounting portion 14 when the cap body 20 is mounted on the cap mounting portion 14, and are formed in a position where the steep slopes of the cap-side mounting protrusions 20x and 20y and the steep slopes of the mounting portion-side mounting protrusions 14x and 14y face each other and come into contact.
[0048] The rear (opening) end of the cap body 20 protrudes inward and outward in a double manner along its entire circumference. The inner protrusion is the cap contact portion 21 that abuts against the seal body 30. The outer protrusion is the cap covering portion 22 that fits into the outer notch 15b of the groove portion 16.
[0049] The outer circumference of the front end of the cap body 20 has a front end projection 23 formed on it, which protrudes outward in a cross-section perpendicular to the axis Z direction compared to other parts.
[0050] When the cap body 20 is placed over the cap mounting portion 14 and the cap body 20 is slid backward, the gentle slopes of the cap-side mounting protrusions 20x and 20y of the cap body 20 move up the gentle slopes of the mounting portion-side mounting protrusions 14x and 14y of the cap mounting portion 14. Once these gentle slopes are surpassed, the cap-side mounting protrusions 20x and 20y fall along the steep slopes of the mounting portion-side mounting protrusions 14x and 14y. At this point, the force with which the user pushes the cap body 20 onto the cap mounting portion 14 changes, resulting in a click sensation (the feeling that the cap body 20 has been fitted) and the cap body 20 engaging with the cap mounting portion 14.
[0051] In this embodiment, when the cap body 20 is attached to the cap mounting portion 14 of the dispensing container 1, the cap contact portion 21 comes into contact with the seal body 30 located in the groove portion 16, compressing the seal body 30 in the longitudinal direction (axis Z direction). As a result, the seal body 30 elastically deforms, and the space between the cap body 20 and the flange portion 15 of the inner container 10 becomes airtight.
[0052] Furthermore, the cap covering portion 22 surrounds the outside of the cap contact portion 21 and protrudes longer in the axial Z direction than the cap contact portion 21. When the cap body 20 is attached to the cap mounting portion 14, the cap covering portion 22 fits into the notch 15b, which is provided around the entire circumference of the outermost front end of the portion of the inner container body 13 where the groove portion 16 is formed.
[0053] As a result, the opening of the groove 16 where the seal body 30 is located is covered by the cap covering portion 22, so the seal body 30 cannot be contacted from the outside, is protected from the outside, and deterioration of the seal body 30 can be prevented.
[0054] Furthermore, since the cap covering portion 22 protrudes longer in the axial Z direction than the cap contact portion 21, even if the cap body 20 removed from the cap mounting portion 14 is placed on a desk with its rear side (opening side) facing downwards, the cap contact portion 21 will not touch the desk. Therefore, dust and other debris are less likely to adhere to the cap contact portion 21, and the risk of airtightness with the seal body 30 being hindered by the attached dust and other debris can be reduced. In this embodiment, the cap body 20 was detachable from the inner container 10 in the container part 2, but this is not limited to this, and for example, it may be detachable from the outer container in the container part.
[0055] Furthermore, in the dispensing container 1 of this embodiment, the sleeve-side airtight sealing surface 12e, which is the inner surface of the small-diameter portion 12b of the rear cylindrical portion 12 of the inner container 10, and the shaft-side airtight sealing surface 52e, which is the outer surface of the rear portion 52a of the shaft base 52, are in close contact. This structure, in which the sleeve-side airtight sealing surface 12e and the shaft-side airtight sealing surface 52e are in close contact, ensures airtightness from the outside to the inside of the inner container 10.
[0056] (Retraction action) From the state shown in Figure 4, the cap body 20 is removed from the cap mounting portion 14 of the storage cylinder portion 11 of the inner container 10, and the operating shaft portion 50 is rotated while holding the outer container 60 or the storage cylinder portion 11. When this is done, the outer shape of the holder 40 engages with the inner shape of the storage cylinder portion 11 of the inner container 10, so the holder 40 does not rotate relative to the inner container 10. Therefore, when the operating shaft portion 50 rotates, the holder 40, which is screwed onto the shaft thread portion 53 of the operating shaft portion 50, moves forward in the direction of axis Z. As the holder 40 moves forward in the direction of axis Z, the solid contents 100 held by the holder 40 are dispensed forward in the direction of axis Z.
[0057] Furthermore, after dispensing the solid contents 100, rotating the operating shaft 50 in the opposite direction to when it was dispensed causes the holder 40 to move to the rear in the direction of axis Z, and consequently the solid contents 100 can be retracted into the storage cylinder 11.
[0058] When the operating shaft 50 rotates in the reverse direction, causing the holder 40 to move to the rear in the direction of axis Z, the holder-side stopper rib 42 provided at the bottom of the holder 40 comes into contact with the shaft-side stopper rib 53a. This restricts the relative rotation between the holder 40 and the operating shaft 50, preventing the holder 40 from moving toward the rear end in the direction of axis Z.
[0059] (transparency) Next, the features of the present invention will be described. In the dispensing container 1 of the embodiment, the inner container 10 is made of a transparent or translucent material such as PP (polypropylene) that allows the solid contents 100 contained inside to be visible. However, it is not limited to PP (polypropylene) as long as it is transparent or translucent. In addition, the inner container 10 may be colored as long as it is transparent or translucent, but it is preferably colorless and transparent.
[0060] Furthermore, it is preferable that the inner container 10 has a function to absorb or scatter ultraviolet rays. Adding a function to absorb ultraviolet rays includes, for example, the inner container 10 being manufactured from a material containing an ultraviolet absorber, or the surface of the inner container 10 being coated or laminated with an ultraviolet absorber. Adding a function to scatter ultraviolet rays includes, for example, the inner container 10 being manufactured from a material containing an ultraviolet scattering agent, or the surface of the inner container 10 being coated or laminated with an ultraviolet reflective or scattering coating. By adding a function to absorb or scatter ultraviolet rays to the inner container 10, the amount of ultraviolet rays reaching the solid contents 100 contained inside can be reduced, even if the inner container 10 is transparent or translucent.
[0061] The outer container 60, the cap body 20, and the operating shaft portion 50 are made of an opaque material such as colored PE (polyethylene) that makes the inside invisible. However, it is not limited to PE (polyethylene) as long as it is opaque. In this embodiment, the seal body 30, which is placed in the groove portion 16 provided between the inner container body 13 and the flange portion 15, is also made of an opaque material.
[0062] (Visible light transmittance) In other words, in the dispensing container 1 of the embodiment, the inner container 10 is made of a material with high visible light transmittance that allows the solid contents 100 contained inside to be seen from the outside. On the other hand, the outer container 60, cap body 20, operating shaft part 50 and seal body 30 are made of a material with lower visible light transmittance than the inner container 10, so that the inside cannot be seen.
[0063] Furthermore, it is preferable that the outer container 60, cap body 20, operating shaft portion 50, and seal body 30 also have low ultraviolet light transmittance. This reduces the possibility of ultraviolet light reaching the solid contents 100.
[0064] (Consistency of external form) Furthermore, in the embodiment, the dispensing container 1 has substantially the same external shape in a cross-sectional area perpendicular to the axial Z direction at the shaft base 51 of the operating shaft portion 50, the outer container 60, the flange portion 15 of the inner container 10, and the cap body 20 (excluding the front end protrusion 23).
[0065] (When using dispensing container 1) As described above, the dispensing container 1 of this embodiment is manufactured from a transparent or translucent material with high visible light transmittance, allowing the solid contents 100 contained inside to be visible. The outer surface of the inner container 10, from the flange portion 15 to the rear cylindrical portion 12 of the inner container body 13, is covered by the outer container 60, and the rear end of the inner container body 13 is covered by the operating shaft portion 50. The outer container 60 and the operating shaft portion 50 are opaque materials. Therefore, the inside of the inner container body 13 from the flange portion 15 to the rear is not visible because it is covered by the opaque outer container 60 and the operating shaft portion 50.
[0066] However, when using the container to apply a solid contents 100, such as solid glue, to a paper surface, the opaque cap body 20 is removed. Therefore, the cap attachment portion 14, which extends further forward from the front of the inner container body 13, is exposed in the inner container 10, which has a high visible light transmittance that allows the solid contents 100 contained inside to be seen. Consequently, the solid contents 100 contained inside can be seen from the outside through the cap attachment portion 14 of the inner container 10. Thus, the remaining amount of solid contents 100 can be determined. In addition, the application opening is easily visible, making application easier.
[0067] From the viewpoint of the visibility of the solid contents 100, the length of the transparent or translucent exposed portion of the inner container 10 (the portion not covered by the opaque outer container 60 and seal 30 when the cap body 20 is removed) in the axial Z direction is preferably 5 mm or more from the front end, and more preferably 10 mm or more.
[0068] Furthermore, it is preferable that the color of the holder 40 differs from the color of the solid contents 100. If the color of the holder 40 differs from the color of the solid contents 100, the end (remaining amount) of the solid contents 100 is more easily identifiable within the cap attachment section 14. The different color should be such that the boundary between the holder 40 and the solid contents 100 can be identified when viewed from the outside of the inner container 10. Specifically, it is preferable that the color difference ΔE*ab measured using a fluorescence spectrophotometer be 13 or more, and more preferably 25 or more. The conditions for measuring the color difference using a fluorescence spectrophotometer are: illumination conditions: A light source, observation light source: D65, field of view: 10°.
[0069] Furthermore, the holder 40 is preferably a color that is easily visible from the outside of the inner container 10, and is particularly preferably opaque. When the holder 40 reaches the cap attachment portion 14 and becomes visible through the dispensing operation, it becomes more clearly apparent that the remaining amount of solid contents 100 is low.
[0070] Preferably, the color of the retainer 40 is different from the color of the front end in the axial Z direction of the opaque portion other than the cap body 20 that covers the inner container 10 (in this embodiment, the color of the seal body 30).
[0071] (When storing dispensing container 1) In this embodiment, the solid contents 100 contained inside the dispensing container 1 exhibit color due to the pH indicator, as described above, and the color disappears after application. Therefore, immediately after application to white paper, the applied areas of the solid contents 100 are clearly visible to the user, making it easy to identify areas that have been missed or unevenly applied. Furthermore, since it subsequently turns white, the applied areas become inconspicuous after drying.
[0072] However, since the pH indicator in such solid contents 100 is not highly light-resistant, long-term storage in a light-exposed environment is prone to discoloration (fading) due to deterioration of the pH indicator. Unlike the embodiment, if the entire dispensing container is made of transparent material, light from the outside can reach the solid contents through the dispensing container, which is undesirable as it accelerates the discoloration of the solid contents.
[0073] In this embodiment, the dispensing container 1, when stored with the cap body 20 attached to the cap mounting section 14, has a transparent inner container 10 covered by the opaque cap body 20 and outer container 60. Therefore, the possibility of light entering the transparent inner container 10 from the outside is reduced, and the discoloration (fading) of the solid contents 100 contained inside the inner container 10 is less likely to progress.
[0074] Furthermore, in this embodiment, the dispensing container 1 includes not only an opaque cap body 20 and outer container 60, but also an opaque seal body 30 and operating shaft 50 that cover the transparent inner container 10. As a result, when the cap body 20 is attached to the cap attachment part 14 for storage, almost the entire transparent inner container 10 is covered with an opaque material. Therefore, the possibility of light entering the transparent inner container 10 from the outside is further reduced, and discoloration (fading) of the solid contents 100 contained inside the inner container 10 is further less likely to occur.
[0075] Furthermore, in the embodiment, the container portion 2 of the dispensing container 1 has substantially equal cross-sectional shapes perpendicular to the Z-axis direction between the front side of the outer container 60 and the rear side of the flange portion 15 of the inner container 10, resulting in no steps, a sense of unity, and superior aesthetics. Moreover, in the embodiment, the cross-sectional shapes perpendicular to the Z-axis direction are substantially equal between the shaft base portion 51 with respect to the operating shaft portion 50, the outer container 60, the flange portion 15 of the inner container 10, and the cap body 20 (excluding the front end protrusion 23). Therefore, when the cap body 20 is attached, the dispensing container 1 has no steps between the shaft base portion 51 with respect to the operating shaft portion 50, the outer container 60, the flange portion 15 of the inner container 10, and the cap body 20 (excluding the front end protrusion 23), resulting in a sense of unity, forming a substantially rectangular parallelepiped as a whole, and superior aesthetics.
[0076] Furthermore, generally, the dispensing container 1 that contains the solid contents 100, which is a solid adhesive, is made of a material with low hydrophilicity to prevent the adhesive from sticking to the inner wall. As a result, printing ink does not adhere well to the surface of the container, making it unsuitable for printing. However, in the dispensing container 1 of this embodiment, the outer container 60 does not come into contact with the solid contents 100, so it is possible to use a material with high hydrophilicity, making it easier to print product logos, etc., on the outer surface of the dispensing container 1 (outer container 60).
[0077] Furthermore, in general, in a dispensing container 1 that contains a solid contents 100, which is a solid adhesive, the inner container 10, outer container 60, cap body 20, and seal body 30 must be made of materials with low gas permeability to ensure airtightness. However, the outer container 60 is not a structure related to airtightness and does not require consideration of airtightness, so there is more freedom in the material used.
[0078] Although preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications are possible. For example, in the embodiment, the outer shape of the cross-section perpendicular to the axis Z direction of the dispensing container 1 is substantially square, but it is not limited thereto, and may be rectangular, circular, elliptical, etc. Also, in the embodiment, the seal body 30 makes the space between the cap body 20 and the inner container 10 airtight, but it is not limited thereto, and airtightness may be ensured by other methods. Furthermore, the seal body 30 is placed in the groove 16 provided between the inner container body 13 and the flange portion 15, but it is not limited thereto, and a structure without a flange portion 15 may also be provided. In the case of a structure without a flange, it is preferable that the external shapes of the front side of the outer container and the rear side of the cap body are approximately equal in a cross-section perpendicular to the axis Z direction. This ensures that there is no step between the outer container and the cap body, resulting in a seamless and aesthetically pleasing appearance.
[0079] Furthermore, it may be a refillable dispensing container, such as one with a structure that allows the holder and the solid contents held in the holder to be replaced, or one with a structure that allows the inner container, holder, and the solid contents held in the holder to be replaced. [Explanation of Symbols]
[0080] 1. Dispenser 2 Container part 10 Inner container 11. Storage cylinder section 12 Rear cylinder part 13 Inner container body 14. Cap mounting section 14a opening 15 Flange section 16 groove 20 Cap Body 30 seals 31 Contact surface 40 Holder 41 Through screw holes 50 Operation shaft section 51 Bottom of shaft 52 Axial base 53. Threaded shaft 60 Outer container 100 Solid content
Claims
1. A dispensing container for dispensing solid contents, A container having an opening on the front side from which the solid contents are dispensed, an inner container that houses the solid contents, and an outer container that covers the outer circumference of the inner container, A cap body that can be attached to and detached from the container portion so as to cover the opening, The container comprises an operating shaft for dispensing the solid contents contained in the inner container axially from the opening, The inner container is transparent or translucent, allowing the solid contents contained inside to be visible. The cap body and the outer container are opaque, making it impossible to see inside. Dispenser.
2. The cap body is detachably attached to the outer circumference of the front side of the inner container. The dispensing container according to claim 1.
3. The inner container is equipped with a function to absorb or scatter ultraviolet light. The dispensing container according to claim 1 or 2.
4. The aforementioned inner container is A cap mounting section is provided on the front side, The inner container body is located behind the cap attachment portion, It has a flange portion that protrudes outward from the front outer surface of the inner container body and is positioned on the outer circumference of the inner container body, The external shapes of the front side of the outer container and the rear side of the flange portion in a cross-section perpendicular to the axial direction are substantially equal. The dispensing container according to claim 1 or 2.
5. The external shapes of the front side of the outer container and the rear side of the cap body in a cross-section perpendicular to the axial direction are substantially equal. The dispensing container according to claim 1 or 2.
6. The color of the holder that holds the solid contents inside the container is different from the color of the solid contents. The dispensing container according to claim 1 or 2.
Citation Information
Patent Citations
Solid feeding container
JP2002086991A