Over-cap equipped container

The overcap design for containers addresses the issue of rattle and catch during removal by positioning the upper opening edge of the inner cylinder above the nozzle, ensuring smooth removal without interference.

JP2025059865APending Publication Date: 2025-04-10YOSHINO KOGYOSHO CO LTD
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Patent Information

Application Number
JP2023170220
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-29
Publication Date
2025-04-10

AI Technical Summary

Technical Problem

Overcaps with flat, planar shapes tend to rattle and get caught during removal from containers, especially when the container body is made of glass, which has poor dimensional stability, making it difficult to ensure a proper fit for the overcap.

Method used

The overcap design features a flat, planar shape with a longitudinal and shorter direction, where the nozzle protrudes radially outward intersecting the peripheral wall of the outlet head, and the overcap has an inner tube that surrounds the outlet head and opens upward, with a top cylindrical outer tube covering the inner tube, ensuring the upper opening edges of both ends in the longitudinal direction of the nozzle are located above the lower end of the nozzle.

Benefits of technology

This design allows for smooth removal of the overcap without getting caught, even when tilted longitudinally, by positioning the upper opening edge of the inner cylinder above the nozzle, preventing it from being caught during removal.

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Abstract

To provide an over-cap equipped container having a flat shape in plan view in such a manner of enabling smooth removal of the over-cap without getting caught.SOLUTION: An over-cap equipped container 1 includes a discharge container 3 having a discharge head 25 with a nozzle 28 attached to a mouth 11 of a glass container body 10 to discharge contents of the container body 10, and an over-cap 5 that is detachably attached to the discharge container 3 to cover the discharge head 25 and has a flat shape with longitudinal and lateral directions when viewed from the top and bottom. The over-cap 5 surrounds the discharge head 25 from the outside in the radial direction and has an inner tube 31 that opens upward, and a topped cylindrical outer cap 40 that covers the inner tube 31. Upper end opening edges 32 at both longitudinal ends of the inner tube 31 are located above a lower end 28a of the nozzle 28.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to a container with an overcap. [Background technology]

[0002] For example, a container that contains a content such as a cosmetic product is generally used with a dispenser that can operate a pump by pushing down a discharge head to dispense the content from a nozzle provided on the discharge head. Conventionally, as such a container, a container with an overcap is known that is detachably attached to cover the discharge head in order to prevent leakage of the content due to erroneous operation of the discharge head during transportation (see, for example, Patent Document 1). Patent Document 1 discloses a configuration of a container with an overcap, which includes an overcap having an overcap body with an outer peripheral wall and a top wall, which covers a cap (dispenser) with a pump, and a cylindrical inner cylinder body that is attached inside the outer peripheral wall with its upper end separated from the top wall and detachably engaged with the outer peripheral surface of the cap by undercut engagement. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-206384 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the overcap may have a flat shape that defines the longitudinal direction in a plan view. In this case, when the overcap is tilted in the longitudinal direction when it is removed from the container, it is likely to rattle, and the upper opening edge of the inner cylinder may get caught on the nozzle of the discharge head, causing the nozzle to come off. In addition, since the container body is made of glass, it is difficult to provide a fitting part of the overcap on the shoulder part because of its poor dimensional stability during molding, and the fitting part is provided on the mounting cylinder part. In this case, if the gap between the outer diameter of the container and the outer diameter of the mounting cylinder part is large, for example, when it is desired to cover the shoulder part of the container body with the overcap, if the overcap is made of only one material, the thickness of the overcap will be large, which may cause problems such as a decrease in moldability of the overcap and an increase in weight.

[0005] Therefore, the present invention makes it possible to remove an overcap smoothly without getting caught in an overcap-equipped container having an overcap that has a flat shape when viewed from above. [Means for solving the problem]

[0006] A container with an overcap in a first aspect of the present invention comprises a discharge container having a container body made of glass with a mouth, and a discharge head having a nozzle that is attached to the mouth and discharges the contents of the container body, and an overcap that is removably attached to the discharge container to cover the discharge head and has a flat shape with a longitudinal and transverse direction when viewed from the top-bottom direction, wherein the nozzle protrudes outward from a peripheral wall portion of the discharge head in a radial direction that intersects the vertical direction, and the overcap surrounds the discharge head from the radial outside and has an inner tube that opens upward, and a topped cylindrical outer tube that covers the inner tube, and the upper opening edges of both ends of the inner tube in the longitudinal direction are positioned higher than the lower end of the nozzle.

[0007] According to the first aspect, since the container body is made of glass, it is difficult to provide the fitting part of the overcap on the shoulder part because of poor dimensional stability during molding, and the fitting part is provided on the mounting tube part. In this case, if the gap between the outer diameter of the container and the outer diameter of the mounting tube part is large, and in cases where it is desired to cover the shoulder part of the container body with the overcap, if the overcap is constructed of only one member, the thickness of the overcap will be large, and problems such as a decrease in moldability of the overcap and an increase in weight may occur. When the nozzle of the discharge head faces the longitudinal direction of the overcap, the upper end opening edge of the inner tube of the overcap is located above the lower end of the nozzle at the position facing the nozzle. Therefore, even if the overcap rattles when tilting the overcap in the longitudinal direction so as to use one end of the longitudinal direction as a fulcrum to remove it from the discharge container, the upper end opening edge of the other end of the longitudinal direction of the inner tube does not get caught on the nozzle. Therefore, in a container with an overcap having an overcap having a flat planar shape, it is possible to remove the overcap smoothly without getting caught.

[0008] A container with an overcap according to a second aspect of the present invention is a container with an overcap according to the first aspect described above, wherein the overcap is formed so that the radial width gradually narrows as it extends upward.

[0009] According to the second aspect, since it is difficult to secure a space in the overcap for providing the top of the inner cylinder so as to cover the discharge head from above, the inner cylinder is opened upward. Therefore, the inner cylinder has an upper end opening edge, and it is possible to provide an optimal configuration for achieving the above-mentioned effects. Effect of the Invention

[0010] According to the present invention, in a container with an overcap having an overcap that has a flat shape in a plan view, the overcap can be removed smoothly without getting caught. [Brief description of the drawings]

[0011] [Figure 1] 4 is a cross-sectional view of a container with an overcap according to an embodiment, showing a half cross-section taken at a position corresponding to line II in FIG. 3. [Diagram 2] 2 is a cross-sectional view of a container with an overcap according to an embodiment, showing a half cross-section taken along a position corresponding to line II-II in FIG. [Diagram 3] FIG. 2 is a top view of an overcap of an embodiment. [Figure 4A] FIG. 2 is a front view of the inner cap of the embodiment. [Figure 4B] FIG. 2 is a side view of an embodiment of an inner cap. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0013] 1 and 2, a container with an overcap 1 of the embodiment includes a dispensing container 3 and an overcap 5. The dispensing container 3 includes a cylindrical container body 10 with a bottom that has a mouth portion 11 and contains the contents, and a dispenser 15 that is attached to the mouth portion 11 of the container body 10. The container body 10 is made of glass. The contents are, for example, liquids such as medicines, cosmetics, and fragrances.

[0014] Here, the mouth 11 and the dispenser 15 are formed into a cylindrical shape coaxially arranged on a common axis. Hereinafter, the common axis is referred to as the container axis O, and the direction along the container axis O is referred to as the up-down direction. In the up-down direction, the direction from the bottom of the container body 10 toward the mouth 11 is referred to as the up direction, and the opposite direction is referred to as the down direction. In addition, in a plan view seen from the up-down direction, the direction intersecting the container axis O is referred to as the radial direction, and the direction going around the container axis O is referred to as the circumferential direction.

[0015] The dispenser 15 includes a mounting tubular portion 20 and a dispense head 25. The mounting tubular portion 20 and the dispense head 25 are made of resin. The mounting tubular part 20 is attached to the mouth part 11 of the container body 10. The mounting tubular part 20 has a mounting tubular part main body 21 and an outer tubular part 22.

[0016] The mounting tube body 21 is formed in a cylindrical shape with a top, and is arranged coaxially with the container axis O. The peripheral wall of the mounting tube body 21 is arranged to surround the mouth 11 of the container body 10. A female thread is formed on the inner peripheral surface of the mounting tube body 21. The female thread of the mounting tube body 21 is screwed into a male thread formed on the mouth 11. In this way, the mounting tube 20 is mounted on the mouth 11, and the dispenser 15 is fixed to the container body 10. A communication hole that connects the inside and outside of the container body 10 is formed through the top wall of the mounting tube body 21 in the vertical direction.

[0017] The outer tube portion 22 is cylindrical and arranged coaxially with the container axis O. The outer tube portion 22 protrudes upward from the top wall portion of the mounting tube portion 20. The outer tube portion 22 is located radially inward from the peripheral wall portion of the mounting tube portion main body 21. The outer tube portion 22 opens upward. A protrusion 23 that protrudes radially outward is formed on the outer circumferential surface of the outer tube portion 22. Three protrusions 23 are provided at intervals of 120° in the circumferential direction. However, the protrusions may be formed in a plurality of positions spaced apart in the circumferential direction in an arrangement different from that of this embodiment, or may be formed continuously around the entire circumference.

[0018] The discharge head 25 constitutes a part of the pump. The pump is supported by the mounting tube portion 20. In addition to the discharge head 25, the pump has a stem that is provided so as to be movable downward in an upwardly biased state. The discharge head 25 is mounted on the upper end of the stem. The discharge head 25 is disposed coaxially with the container axis O and is a generally cylindrical shape with a top that opens downward. The discharge head 25 is movable downward together with the stem in an upwardly biased state. The discharge head 25 is rotatable in the circumferential direction with respect to the container body 10 and the mounting tube portion 20. The discharge head 25 has a head top wall portion 26, a head outer tube portion 27 (circumferential wall portion) that extends downward from the radial outer edge portion of the head top wall portion 26, and a nozzle 28 that is connected to the stem on the radial inner side of the head outer tube portion 27 and protrudes radially outward from the head outer tube portion 27.

[0019] The lower end of the head outer cylinder part 27 is inserted into the inside of the outer cylinder part 22 of the mounting cylinder part 20. The nozzle 28 is connected to the inside of the container body 10 through the stem, and discharges the contents of the container body 10 sucked up by the stem when the discharge head 25 is pressed down. The nozzle 28 penetrates the upper end of the head outer cylinder part 27 in the radial direction. The nozzle 28 protrudes radially outward beyond the inner circumferential surface of the outer cylinder part 22. The nozzle 28 is formed in a cylindrical shape outside the head outer cylinder part 27 and extends linearly along the radial direction. The nozzle 28 may be formed in a square cylinder shape. A discharge hole through which the contents are discharged is formed at the radially outer end of the nozzle 28.

[0020] The overcap 5 is detachably attached to the discharge container 3. The overcap 5 is formed in a cylindrical shape with a top, and covers the discharge head 25 and the mounting tube portion 20. The lower end opening edge of the overcap 5 faces the shoulder portion of the container body 10 in the up-down direction over the entire circumference. The overcap 5 tapers upward so that the radial width gradually narrows from the lower end opening edge toward the upper end. The overcap 5 is made of resin.

[0021] As shown in FIG. 3, the overcap 5 has a flat shape having a longitudinal direction and a transverse direction when viewed from above and below. Hereinafter, the longitudinal direction and the transverse direction in the plan view shape of the overcap 5 are simply referred to as the longitudinal direction and the transverse direction. In FIG. 3, an outer cap 40, which will be described later, is illustrated by a virtual line in the right half of the overcap 5. In this embodiment, the overcap 5 is formed so that the part where the width in the transverse direction is the largest coincides with the container axis O when viewed from the transverse direction, and the part where the width in the longitudinal direction is the largest is shifted in the transverse direction relative to the container axis O when viewed from the longitudinal direction. In addition, line II in FIG. 3 is a line segment connecting the part farthest from the container axis O in the plan view shape of the overcap 5 and the container axis O, and is referred to as a semi-long axis for convenience in this embodiment.

[0022] 1 and 2, the overcap 5 is formed by joining two members, an inner cap 30 and an outer cap 40 (outer cylinder) that covers the entire inner cap 30 from the outside in the radial direction and from above, so that they cannot be displaced relative to each other. The inner cap 30 includes an inner cylinder 31 that surrounds the discharge head 25 from the outside in the radial direction, an outer peripheral cylinder 34 that extends in the up-down direction along the inner surface of the outer cap 40, a connection part 36 that connects the inner cylinder 31 and the outer peripheral cylinder 34, and a flange part 38 that protrudes radially outward from the lower end of the outer peripheral cylinder 34.

[0023] The inner tube 31 is cylindrical and arranged coaxially with the container axis O, and is open on both the top and bottom sides. The inner tube 31 extends in the vertical direction with a constant inner diameter over the entire vertical length. The inner tube 31 is arranged so as to directly face the dispenser 15 in the radial direction. The inner tube 31 is not in contact with the discharge head 25. The lower part of the inner tube 31 surrounds the mounting tube body 21 from the outside in the radial direction over the entire circumference. The lower part of the inner tube 31 is formed with a locking portion 31a that protrudes radially inward. The locking portion 31a is detachably locked to the protrusion 23 of the mounting tube body 21 from below. The locking portion 31a is formed on the inner peripheral surface of the inner tube 31 over the entire circumference. However, when the protrusion of the mounting tube is formed continuously over the entire circumference, a plurality of locking portions may be formed at intervals in the circumferential direction. The upper part of the inner cylinder 31 completely surrounds the outer cylinder portion 22 of the mounting cylinder portion 20 from the outside in the radial direction.

[0024] As shown in FIG. 4, the inner tube 31 has a pair of longitudinal ends 31b located in the longitudinal direction relative to the discharge head 25, and a pair of lateral ends 31c located in the lateral direction relative to the discharge head 25. The upper end opening edge 32 of the inner tube 31 extends from the longitudinal end 31b to both sides in the circumferential direction at a certain position in the up-down direction. In this embodiment, the upper end opening edge 32 of the inner tube 31 extends continuously at a certain position in the up-down direction from the longitudinal end 31b over a portion on the semi-long axis. The upper end opening edge 32 of the inner tube 31 is formed so that the height of the inner tube 31 is minimal at the lateral end 31c. The upper end opening edge 32 of the inner tube 31 extends in a curved shape that is curved downward and concave when viewed from the lateral direction so that it is positioned upward as it moves away from the lateral end 31c on both sides in the circumferential direction.

[0025] As shown in FIG. 1 and FIG. 2, the upper end opening edge 32 of the inner cylinder 31 is located at a position higher than the lower end 28a of the nozzle 28 at the upper end position at the longitudinal end 31b. That is, when the nozzle 28 is oriented in the longitudinal direction, the inner cylinder 31 overlaps at least a part of the tip surface of the nozzle 28 surrounding the discharge hole when viewed from the longitudinal direction. The upper end opening edge 32 of the inner cylinder 31 is located higher than the lower end 28a of the nozzle 28 at the upper end position from the longitudinal end 31b to a portion on the semi-long axis. The upper end opening edge 32 of the inner cylinder 31 is located lower than the upper end of the nozzle 28 at the upper end position at the longitudinal end 31b. The upper end opening edge 32 of the inner cylinder 31 is located lower than the longitudinal end 31b at the transverse end 31c. In this embodiment, the upper opening edge 32 of the inner cylinder 31 is located below the nozzle 28 at the lower end position at the short side end 31c and below the upper edge of the outer cylinder portion 22 of the mounting cylinder portion 20.

[0026] The outer tube 34 is formed in a cylindrical shape that opens on both the top and bottom. The cross-sectional shape at any position of the outer tube 34 is flattened so as to have a longitudinal direction following the planar shape of the overcap 5. The longitudinal gap between the outer tube 34 and the inner tube 31 is larger than the lateral gap between the outer tube 34 and the inner tube 31. The lower end opening edge of the outer tube 34 is at a constant position in the vertical direction over the entire circumference. The lower end opening edge of the outer tube 34 is located below the lower end opening edge of the inner tube 31. The outer tube 34 tapers upward so as to approach the container axis O as it moves upward from the lower end opening edge. The upper end opening edge 32 of the outer tube 34 is located below the upper end opening edge 32 of the inner tube 31 at any position in the circumferential direction. As a result, the inner tube 31 protrudes upward above the outer tube 34 over the entire circumference. A locking claw 34a protruding radially outward is formed at the lower part of the outer tube 34. The locking claws 34a are formed only on both longitudinal ends of the outer peripheral tube 34. A plurality of locking claws 34a may be formed at intervals in the circumferential direction in an arrangement different from that of this embodiment.

[0027] The connecting portion 36 protrudes radially outward from the outer circumferential surface of the inner tube 31. The connecting portion 36 extends around the entire circumference of the inner tube 31. The radially outer end of the connecting portion 36 is connected to the upper opening edge 32 of the outer tube 34. The flange portion forms the edge of the lower end opening of the inner cap 30. The flange portion extends around the entire circumference of the outer tube .

[0028] The outer cap 40 forms the outer shape of the overcap 5 when viewed in the longitudinal and lateral directions. The outer cap 40 is formed in a cylindrical shape with a top. The inner peripheral surface of the lower part of the outer cap 40 is aligned with the outer peripheral surface of the outer tube 34 of the inner cap 30 over the entire circumference. The upper part of the outer cap 40 covers the inner tube 31 and the discharge head 25 of the inner cap 30 from the outside in the radial direction and from above. The outer cap 40 is not in contact with the upper end opening edge 32 of the inner tube 31 over the entire circumference. The inner peripheral surface of the outer cap 40 is formed with a locking recess 40a recessed outward in the radial direction. The locking claw 34a of the inner cap 30 fits into the locking recess 40a. As a result, the outer cap 40 engages with the outer tube 34 of the inner cap 30. The lower end of the outer cap 40 covers the flange 38 of the inner cap 30 from above and from the outside in the radial direction.

[0029] As described above, the container 1 with an overcap of this embodiment includes the overcap 5, which has a flat shape having a longitudinal direction and a transverse direction when viewed from above and below. The overcap 5 has an inner tube 31 that surrounds the discharge head 25 from the outside in the radial direction and opens upward, and an outer cap 40 in the shape of a topped cylinder that covers the inner tube 31. The upper end opening edge 32 of the longitudinal end 31b of the inner tube 31 is located above the lower end 28a of the nozzle 28 of the discharge head 25. Here, if the planar shape of the overcap 5 is flattened to have a longitudinal direction, the overcap 5 becomes easily displaced relative to the container body 10 and the discharger 15 along the longitudinal direction, and rattling may occur in the overcap 5. According to the above configuration of this embodiment, when the nozzle 28 of the discharge head 25 faces the longitudinal direction, the upper end opening edge 32 of the inner tube 31 is located above the lower end 28a of the nozzle 28 at the position facing the nozzle 28. Therefore, even if the overcap 5 loosens when it is removed from the discharge container 3 by tilting it in the longitudinal direction so that one of its longitudinal ends serves as a fulcrum, the upper end opening edge 32 of the longitudinal end 31b on the other longitudinal side of the inner tube 31 does not get caught on the nozzle 28. Therefore, in the container 1 with the overcap, which is provided with the overcap 5 having a flat shape in a plan view, the overcap 5 can be smoothly removed without getting caught.

[0030] The overcap 5 is formed so that the width in the direction perpendicular to the vertical direction gradually narrows toward the top. With this configuration, since it is difficult to secure a space in the overcap 5 for providing the top of the inner tube 31 so as to cover the discharge head 25 from above, the inner tube 31 is opened upward. Therefore, the inner tube 31 has an upper end opening edge 32, and can be optimally configured to achieve the above-mentioned effects.

[0031] The present invention is not limited to the above-described embodiment explained with reference to the drawings, and various modifications are possible within the technical scope of the present invention. For example, in the above embodiment, the shape of the overcap 5 in plan view is asymmetric in the short direction with respect to the container axis O, but is not limited to this configuration. The shape of the overcap in plan view may be symmetric in the short direction with respect to the container axis, and may be, for example, an oval shape, an ellipse shape, or a quadrilateral shape such as a rectangle.

[0032] In the above embodiment, the upper end opening edge 32 of the inner tube 31 of the overcap 5 is located lower than the longitudinal end 31b at the short side end 31c, but is not limited to this configuration. It is sufficient that the upper end opening edge 32 is located higher than the lower end 28a of the nozzle 28 at the longitudinal end 31b, and for example, the upper end opening edge of the inner tube may extend circumferentially at a constant position in the up-down direction all around the circumference.

[0033] In the above embodiment, the nozzle 28 extends linearly along the radial direction, but is not limited to this configuration, and the nozzle may extend in a direction inclined with respect to the radial direction.

[0034] In addition, the components in the above-described embodiments can be replaced with well-known components as appropriate without departing from the spirit of the present invention. [Explanation of symbols]

[0035] 1...container with overcap 3...discharge container 5...overcap 10...container body 11...mouth 25...discharge head 28...nozzle 28a...lower end 31...inner tube 32...upper end opening edge 40...outer cap (outer tube)

Claims

1. a dispensing container having a container body made of glass and having a mouth, and a dispensing head having a nozzle attached to the mouth for dispensing the contents of the container body; an overcap that is detachably attached to the discharge container to cover the discharge head and has a flat shape having a longitudinal direction and a lateral direction when viewed from above and below; Equipped with The nozzle protrudes outward from a peripheral wall portion of the ejection head in a radial direction intersecting with a vertical direction, The overcap comprises: an inner cylinder that surrounds the discharge head from the outside in the radial direction and opens upward; an outer cylinder having a top that covers the inner cylinder; having The upper end opening edges of both ends of the inner cylinder in the longitudinal direction are located above the lower end of the nozzle. Container with overcap.

2. The overcap is formed such that the radial width gradually narrows toward the top. The container with overcap according to claim 1 .

Citation Information

Patent Citations

  • Container with over-cap

    JP2019206384A