Container

The container design addresses the complexity and cost issues of dual-material containers by incorporating a deformable nozzle cap that simplifies attachment and detachment, enhances refilling ease, and promotes recycling, achieving stable co-rotation suppression and cost-effectiveness.

JP2025071872APending Publication Date: 2025-05-09LION CORP
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Patent Information

Application Number
JP2023182277
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-10-24
Publication Date
2025-05-09

AI Technical Summary

Technical Problem

Existing containers with dual-material construction complicate manufacturing, increase costs, and hinder recycling due to the inability to separate and reuse different material components effectively.

Method used

A container design featuring a nozzle cap with a deformable portion that elastically deforms to engage a locking portion on the container body, allowing for repeated attachment and detachment without the need for multiple materials, thus simplifying recycling and reducing costs.

Benefits of technology

The container enables stable suppression of co-rotation, easy refilling by widening the liquid receiving port, and facilitates recycling by allowing easy separation of materials, all while maintaining cost-effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a container that can be repeatedly and stably suppressed from corotating while being suppressed from increasing in cost.SOLUTION: A container comprises a container body, a nozzle cap having an outer wall part and a measuring cap that is attached to the nozzle cap. A mouth part has a first screw part at an outer periphery thereof, and the nozzle cap has a second screw part that engages with the first screw part and a third screw part that engages with the measuring cap. The measuring cap has a fourth screw part that engages with the third screw part. The container body has a locking part facing one side in a circumferential direction. The nozzle cap has a deforming part that can elastically deform to outside in a radial direction with a central shaft as a center, when the cap engages with the locking part from one side in the circumferential direction. The deforming part has a protruding part that protrudes from the outer wall part to inside in the radial direction to face the locking part, at one side in the circumferential direction, and thin regions each extending from positions of both ends in the circumferential direction in the protruding part to both sides in the circumferential direction, which are formed of removed parts in which at least one of an inner peripheral surface and an outer peripheral surface in the outer wall part is removed.SELECTED DRAWING: Figure 2
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Description

[Technical field]

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

[0002] Generally, containers for storing liquid materials such as liquid detergent, liquid bleach, liquid fabric softener, and solvents, or powdered materials such as granular detergent, granular bleach, and granular seasonings, have a nozzle cap that has a nozzle and is attached to the mouth of a bottle container serving as the container body by a screw part, and a measuring cap that has a measuring tube part for measuring the contents poured from the nozzle and is removably attached to the container body via the nozzle cap.

[0003] When the measuring cap is detachably attached to the nozzle cap by a screw portion, the nozzle cap opens and closes in conjunction with the opening and closing of the measuring cap, resulting in a co-rotation. For this reason, conventionally, a ratchet structure is provided on both the nozzle cap and the container body, and when the cap is opened, the ratchet of the nozzle cap engages with the ratchet of the container body to prevent the above-mentioned co-rotation. With the above ratchet structure, the ratchet of the nozzle cap engages with the ratchet of the container body, making it impossible to open the cap, and since the nozzle cap and the container body are often made of different materials, it cannot be said that the structure is suitable for recycling.

[0004] In addition, since the main body of a toiletry product container is a container that can be refilled and used multiple times, it is required that the nozzle cap does not rotate when it is reattached. The diameter of the nozzle cap tends to be reduced in order to reduce the amount of resin. As a result, the liquid receiving port when refilling has become smaller, which increases the psychological burden of refilling, so there is a demand to widen the mouth of the container body as a liquid receiving port by removing the nozzle cap.

[0005] Patent Document 1 discloses a capped container in which an elastic member made of a soft material is provided at the mouth of a cylindrical member, and a flexible protruding piece having a protrusion is provided integrally with the cylindrical member on the front surface of the elastic member. The container of Patent Document 1 elastically deforms together with the elastic member as the protrusion provided on the inner peripheral surface of the cap overcomes the protrusion, and when the protrusion has overcome the protrusion, the protruding piece returns to its initial shape together with the elastic member, making it possible to repeatedly open and close the cap with respect to the cylindrical member. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2011-111229 A Summary of the Invention [Problem to be solved by the invention]

[0007] In the container of Patent Document 1, the cylindrical member is made of at least two materials, which complicates the manufacturing process and increases costs. In addition, the use of two materials in the container of Patent Document 1 makes it even less suitable for recycling.

[0008] The present invention has been made in consideration of the above points, and has an object to provide a container that can repeatedly and stably suppress co-rotation while suppressing cost increases. [Means for solving the problem]

[0009] The present invention has the following aspects. [1] A container body extending in an axial direction along a central axis, having a mouth portion provided on one side in the axial direction, and capable of accommodating contents; a nozzle cap having an outer wall portion removably attached to the nozzle; a measuring cap that is detachably attached to the nozzle cap; Equipped with The mouth portion has a first thread portion formed on an outer periphery in a circumferential direction about the central axis, the nozzle cap has a second threaded portion provided inside the outer wall portion and engaging with the first threaded portion, and a third threaded portion provided above the outer wall portion and engaging with the measuring cap, the measuring cap has a fourth threaded portion that mates with the third threaded portion; The container body has a locking portion facing one side in the circumferential direction, the nozzle cap has a deformation portion that is elastically deformable outward in a radial direction about the central axis when the nozzle cap is engaged with the locking portion from one side in the circumferential direction, The deformation portion is a protrusion protruding inward in the radial direction from the outer wall portion and facing the locking portion on one side in the circumferential direction; a thin-walled region extending from each of the circumferential ends of the protrusion toward both sides in the circumferential direction and formed by a missing portion obtained by missing at least one of an inner peripheral surface and an outer peripheral surface of the outer wall portion; A container having [2] The missing portion is provided on the inner circumferential surface of the outer wall portion, The protrusion protrudes from a position radially outward from the inner circumferential surface toward a radially inward position from the inner circumferential surface. The container described in [1] above. [3] The radial thickness of the thin region is 30% or more, or 60% or more, of the radial thickness of the outer wall portion. A container according to [1] or [2] above. [4] The protrusion is formed by being curved along a curve protruding toward the inside in the radial direction when viewed in a direction along the central axis, A container described in any one of [1] to [3]. [5] The locking portion and the deformation portion are each arranged at intervals in the circumferential direction, The arrangement pitch of the locking portion and the arrangement pitch of the deformation portion are at least partially different. A container described in any one of [1] to [4]. Effect of the Invention

[0010] In the present invention, by providing a nozzle cap that can be repeatedly attached and detached to the container body, the mouth of the container body can be made wider as a liquid receiving port when refilling the contents, thereby reducing the psychological burden of refilling. In addition, even if the container body and the nozzle cap are made of different materials, they can be easily separated for disposal, making them more suitable for recycling. Furthermore, when attaching or detaching the nozzle cap, the nozzle cap can be attached or detached without removing the metering cap, making the attachment and detachment operation easy. When storing the removed nozzle cap, the top surface of the metering cap can be used as a surface to place on the floor, etc., allowing the nozzle cap to be stored stably. It is also possible to provide a container that can repeatedly and stably suppress co-rotation while suppressing increases in cost. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a vertical cross-sectional view of a top portion of a container in an upright position according to an embodiment of the present invention. [Diagram 2] 2 is a cross-sectional view taken along the line AA in FIG. [Diagram 3] FIG. 4 is an enlarged view of the ratchet portion and its periphery. [Figure 4] 4 is a partial cross-sectional view of the nozzle cap perpendicular to the central axis C. FIG. [Diagram 5] FIG. 13 is a diagram showing the protrusion riding on the ratchet portion. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of a container according to the present invention will be described with reference to FIGS. The following embodiment shows one aspect of the present invention, does not limit the present invention, and can be modified as desired within the scope of the technical idea of ​​the present invention. In addition, in the following drawings, the scale and number of each structure are different from the actual structure in order to make each configuration easier to understand.

[0013] FIG. 1 is a vertical cross-sectional view of the top of a container 1 in an upright position. The container 1 comprises a container body 2, a nozzle cap 4, and a measuring cap 6.

[0014] The container body 2 is in the shape of a bottle for accommodating the contents. The container body 2 has an accommodating space 2a for accommodating the contents. Examples of the contents include laundry detergent (liquid or powder), bleach, fabric softener, detergent for dishwashers and dryers, and liquid mouthwash, with liquid laundry detergent and fabric softener being preferred.

[0015] The container body 2 has a mouth portion 3 extending in a direction along the central axis C, a base portion 8, and a ratchet portion 9. The mouth portion 3 has a cylindrical shape that extends in the vertical direction, and opens the storage space 2a of the container body 2 upward in the upright state. The mouth portion 3 has a first screw portion 5 on its outer periphery. The first screw portion 5 is a male screw portion. The first screw portion 5 is a right-handed screw formed in the circumferential direction about the central axis C.

[0016] A nozzle cap 4 having a generally bottomed cylindrical shape is attached from above to this mouth 3, and a measuring cap 6 having a generally lidded cylindrical shape is attached from above to this nozzle cap 4. The mouth 3, nozzle cap 4, and measuring cap 6 share a central axis C that is aligned along the vertical direction in the upright state.

[0017] In the following description, the axial direction along the central axis C will be referred to as the up-down direction, the direction perpendicular to the central axis C as the radial direction, and the direction around the axis centered on the central axis C as the circumferential direction, as appropriate. In addition, one side in the up-down direction which is the axial direction, where the nozzle cap 4 of the container body 2 is provided, will be referred to as the upper side (above the bottle), and the other side in the up-down direction which is the axial direction, where the container body 2 is provided, will be referred to as the lower side (below the bottle). Furthermore, in the circumferential direction, the clockwise side centered on the central axis C will be referred to as the one side, and the counterclockwise side will be referred to as the other side.

[0018] Note that the terms "upper" and "lower" are simply names used to explain the relative positions of the various parts, and the actual relative positions may be other than those indicated by these names.

[0019] The seat portion 8 is located on the lower side of the mouth portion 3. The seat portion 8 is disposed lower than the first screw portion 5. The seat portion 8 is annular and protrudes radially outward from the outer circumferential surface of the mouth portion 3 about the central axis C. The upper surface of the seat portion 8 is inclined downward as it moves radially outward.

[0020] Fig. 2 is a cross-sectional view taken along line AA in Fig. 1. Fig. 2 is a cross-sectional view seen from above. As shown in FIG. 2, the ratchet portion 9 is provided on the outer periphery of the base portion 3A of the mouth portion 3. The base portion 3A is the lower end of the mouth portion 3. The ratchet portion 9 is provided on the upper surface of the base portion 8. The ratchet portion 9 is provided on both sides in the radial direction across the central axis C. As an example, the ratchet portions 9 in this embodiment are arranged in a plurality (three in FIG. 2) on both sides in the radial direction across the central axis C at intervals in the circumferential direction. In this embodiment, the ratchet portions 9 adjacent in the circumferential direction are arranged at the same arrangement pitch in the circumferential direction. "Adjacent in the circumferential direction" means that the arrangement pitch in the circumferential direction is less than 40°. The upper limit of the ratchet portions 9 is 20 in total, with 10 on each side in the radial direction across the central axis C at intervals in the circumferential direction.

[0021] FIG. 3 is an enlarged view of the ratchet portion 9 and its periphery. The ratchet portion 9 has an inclined portion 9A, a large diameter portion 9B, and a locking portion 9C. The inclined portion 9A gradually moves radially outward as it moves toward one circumferential side. The large diameter portion 9B extends from one circumferential end of the inclined portion 9A to one circumferential side at a constant radius. The locking portion 9C extends radially inward from one circumferential end of the large diameter portion 9B. The locking portion 9C is formed facing one circumferential side.

[0022] The container body 2 is formed of a resin. Examples of the resin constituting the container body 2 include polypropylene, high density polyethylene, low density polyethylene, and polyethylene terephthalate, and high density polyethylene or polyethylene terephthalate is preferable. The container body 2 is produced by blow molding, stretch blow molding, or injection blow molding. That is, the container body 2 is a blow molded body.

[0023] The nozzle cap 4 has an outer wall portion 11, a flange portion 12, an inner cylinder portion 13, a bottom wall portion 14, a nozzle 15, an outer opening portion 16, and a deformation portion 50.

[0024] The outer wall portion 11 is cylindrical with the central axis C as its center. The outer wall portion 11 is disposed radially outwardly away from the inner tube portion 13. The outer wall portion 11 is removably attached to the mouth portion 3. The outer wall portion 11 has a second thread portion 7 on the inner peripheral surface 11a on the inside. The second thread portion 7 is a female thread portion. The second thread portion 7 is recessed radially outwardly from the inner peripheral surface 11a. The second thread portion 7 meshes with the first thread portion 5 in the mouth portion 3. The second thread portion 7 meshes with the first thread portion 5, whereby the nozzle cap 4 is removably attached to the mouth portion 3 of the container body 2.

[0025] The flange portion 12 extends radially inward from an upper end of the outer wall portion 11. The inner cylinder portion 13 extends downward from an inner end of the flange portion 12. The inner cylinder portion 13 is inserted into the mouth portion 3 when the outer wall portion 11 is attached to the mouth portion 3.

[0026] The bottom wall 14 is provided below the inner cylinder 13. The bottom wall 14 has an inclined surface 14a formed in a V-shape that opens upward. The nozzle 15 extends upward from one of the inclined surfaces 14a of the bottom wall 14 and guides the pouring of the contents. The nozzle 15 is formed in a gutter shape having a U-shaped cross section. The inside of the nozzle 15 having a U-shaped cross section communicates with the storage space 2a of the container body 2 via a communication portion 14b formed in the bottom wall 14.

[0027] The outer opening portion 16 is cylindrical and extends upward from the radially inner end of the flange portion 12. The outer opening portion 16 has a third thread portion 17 on the outer circumferential side. The third thread portion 17 is located above the outer wall portion 11. The third thread portion 17 meshes with the measuring cap 6. The third thread portion 17 is a male thread portion. The third thread portion 17 is a right-handed thread formed in the circumferential direction about the central axis C.

[0028] The deformation portion 50 is capable of elastically deforming radially outward when engaged with the locking portion 9C of the ratchet portion 9 from one circumferential side. In this embodiment, as an example, a plurality of deformation portions 50 (three in FIG. 2 ) are arranged on each radial side of the central axis C at intervals in the circumferential direction, and are arranged point symmetrically with respect to the central axis C. The ratchet portion 9 and the deformation portions 50 are each arranged at the same arrangement pitch in the circumferential direction.

[0029] The deformation portion 50 has a thin region 51 and a protrusion 52 . The protrusion 52 protrudes radially inward from the outer wall portion 11. The protrusion 52 is disposed near the lower end of the outer wall portion 11. The protrusion 52 faces the locking portion 9C of the ratchet portion 9 on one side in the circumferential direction. The protrusion 52 is formed by being curved with a curve that protrudes radially inward when viewed in a direction along the central axis C. The protrusion 52 may be in a triangular shape that protrudes radially inward.

[0030] The radially inner tip of the protrusion 52 is located radially inner than the large diameter portion 9B of the ratchet portion 9. The other circumferential side of the radially inner tip of the protrusion 52 extends in a radially outward direction to a position radially outer than the large diameter portion 9B as it approaches the other circumferential side.

[0031] The thin-walled region 51 extends from both circumferential ends of the protrusion 52 to both sides in the circumferential direction. FIG. 4 is a partial cross-sectional view of the nozzle cap 4 perpendicular to the central axis C. As shown in FIG. 4, the thin-walled region 51 is formed by a missing portion 53 in which at least one of the inner peripheral surface 11a and the outer peripheral surface 11b of the outer wall portion 11 is missing. The thin-walled region 51 of this embodiment is formed by a missing portion 53 in which the inner peripheral surface 11a of the outer wall portion 11 is missing. The thin-walled region 51 formed by the missing portion 53 in which the inner peripheral surface 11a of the outer wall portion 11 is missing has a radial thickness t1 that is thinner than the radial thickness t2 of the outer wall portion 11. The protrusion 52 protrudes from a position radially outward from the inner peripheral surface 11a to a position radially inward from the inner peripheral surface 11a.

[0032] 2, the thin-walled region 51 is formed in a range from a position that is separated by an angle θ1 on one circumferential side from the radially inner end of the protrusion 52 to a position that is separated by an angle θ2 on the other circumferential side. That is, the deformation portion 50 is formed in a range of an angle θ that is the sum of the angles θ1 and θ2. As an example, the angle θ is from 5 degrees to 90 degrees. Note that the angles θ1 and θ2 may be the same value or different values.

[0033] The radial thickness t1 of the thin region 51 is preferably 30% or more, and more preferably 60% or more, of the radial thickness t2 of the outer wall portion 11. If the radial thickness t1 of the thin region 51 is less than 30% of the radial thickness t2 of the outer wall portion 11, the strength during elastic deformation outward in the radial direction may not be ensured. Also, molding defects may occur when the nozzle cap 4 is manufactured by injection molding. If the radial thickness t1 of the thin-walled region 51 exceeds 60% of the radial thickness t2 of the outer wall portion 11, the bending strength will become large and elastic deformation radially outward may become difficult.

[0034] By making the radial thickness t1 of the thin-walled region 51 30% or more and 60% or more of the radial thickness t2 of the outer wall portion 11, it becomes possible to easily elastically deform the thin-walled region 51 while ensuring a thickness that is necessary when producing by injection molding and that ensures strength during elastic deformation radially outward.

[0035] The nozzle cap 4 is made of a resin such as polypropylene, high density polyethylene, or low density polyethylene, and polypropylene is preferable. The nozzle cap 4 is integrally molded by injection molding. That is, the nozzle cap 4 is an injection molded body.

[0036] The measuring cap 6 has a measuring tube portion 41, a screw portion 42, a flange portion 43, and a cap side seal portion 25. The measuring tube portion 41 is a covered cylindrical portion that enters the inner tube portion 13 and the outer opening portion 16 of the nozzle cap 4 so as to accommodate the nozzle 15 from above. The screw portion 42 is provided in a cylindrical shape spaced apart from the radially outer side of the vertical middle portion of the measuring tube portion 41. The screw portion 42 has a fourth screw portion 18 that meshes with the third screw portion 17 in the outer opening portion 16 of the nozzle cap 4. The flange portion 43 protrudes radially outward from the vertical middle of the measuring tube portion 41 and is connected to the upper end edge portion of the screw portion 42. The cap side seal portion 25 is a cylindrical shape that extends downward from the radially inner side of the flange portion 43.

[0037] The fourth screw portion 18 is a female screw portion. The fourth screw portion 18 meshes with the third screw portion 17, whereby the metering cap 6 is detachably attached to the nozzle cap 4. When the fourth screw portion 18 meshes with the third screw portion 17 and the metering cap 6 is attached to the nozzle cap 4, the cap side seal portion 25 liquid-tightly seals the outer opening portion 16 of the nozzle cap 4 from the radial inside.

[0038] The measuring cap 6 is formed by injection molding using an olefin-based thermoplastic synthetic resin such as polypropylene, etc. In other words, the measuring cap 6 is an injection molded body. When polypropylene resin is used, it has excellent moldability and suitability for the contents, and since it can be molded using a transparent resin, it is possible to manufacture a measuring cap with excellent measuring properties.

[0039] When manufacturing the container 1, the position of the nozzle 15 is confirmed through the metering cap 6 to confirm that the metering cap 6 is in the correct circumferential position relative to the container body 2, but the circumferential position of the metering cap 6 can be confirmed by checking the circumferential position of the deformation portion 50. Therefore, the transparency of the metering cap 6 is no longer essential, and it becomes possible to improve the grip of the metering cap 6 with the fingers, for example, by subjecting the surface to a matte finish.

[0040] In the container 1 having the above-mentioned configuration, as shown in FIG. 1, the container body 2 is attached to the nozzle cap 4, and the nozzle cap 4 is attached to the measuring cap 6. Then, the nozzle cap 4 is attached to the measuring cap 6. By rotating the measuring cap 6 in the other circumferential direction with respect to the measuring cap 6, the measuring cap 6 can be opened.

[0041] At this time, as shown in Figures 2 and 3, the protrusion 52 of the deformation portion 50 provided on the nozzle cap 4 engages with the locking portion 9C of the ratchet portion 9 from one circumferential side, thereby preventing the nozzle cap 4 from rotating together when the metering cap 6 is opened.

[0042] On the other hand, when opening the nozzle cap 4 from the container body 2 for refilling or the like, for example, the outer peripheral surface of the outer wall portion 11 is gripped or pinched and rotated to the other side in the circumferential direction. At this time, the nozzle cap 4 is rotated with a torque larger than the torque applied to the nozzle cap 4 when the measuring cap 6 is opened.

[0043] Here, since the other circumferential side of the protrusion 52 extends in a direction toward the radially outward direction as it approaches the other circumferential side, a load including a component toward the radially outward direction is applied to the deformation portion 50 where the protrusion 52 engages with the engaging portion 9C from one circumferential side when rotating toward the other circumferential side.

[0044] In the deformation portion 50, the radial thickness t1 of the thin-walled region 51 is thinner than the radial thickness t2 of the outer wall portion 11, and the bending strength is smaller than that of the outer wall portion 11, so that the thin-walled region 51 elastically deforms radially outward due to a load applied to the deformation portion 50. Fig. 5 is a diagram showing the protrusion 52 riding on the ratchet portion 9. When a load including a radially outward component is applied to the thin-walled region 51, as shown in Fig. 5, the protrusion 52 rides on the ratchet portion 9 and elastically deforms to a position radially outward of the locking portion 9C.

[0045] As a result, the projection 52 is released from engagement with the locking portion 9C and passes over the large diameter portion 9B, allowing the nozzle cap 4 to rotate in the other circumferential direction. After passing over the large diameter portion 9B, the deformed portion 50 of the projection 52 moves radially inward due to the elastic restoring force, and faces the locking portion 9C of the ratchet portion 9 adjacent thereto in the circumferential direction.

[0046] The nozzle cap 4 can be removed from the container body 2 by the deformation portion 50 elastically deforming for each of the ratchet portions 9 and climbing over the large diameter portion 9B. As a result, the large-diameter mouth portion 3 is opened, and refilling can be easily performed through the mouth portion 3.

[0047] Furthermore, when the nozzle cap 4 is to be closed on the container body 2, the outer wall portion 11 is rotated to one side in the circumferential direction. In this case, one side of the protrusion 52 in the circumferential direction comes into contact with the inclined portion 9A of the ratchet portion 9, so that the thin-walled region 51 elastically deforms radially outward, similar to when the cap is opened. Then, the protrusion 52 climbs over the locking portion 9C and is positioned to one side in the circumferential direction of the locking portion 9C, so that the nozzle cap 4 can be closed.

[0048] As described above, in the container 1 of this embodiment, when the protrusion 52 engages with the locking portion 9C from one side in the circumferential direction, the nozzle cap 4 has the deformation portion 50 that can elastically deform radially outward, so there is no need to form the nozzle cap 4 from multiple materials, and co-rotation can be repeatedly and stably suppressed while suppressing cost increases. In addition, in the container 1 of this embodiment, since there is no need to form the nozzle cap 4 from multiple materials, it can be easily recycled. Furthermore, in the container 1 of this embodiment, even if the container body 2 and the nozzle cap 4 are made of different materials, they can be easily separated for disposal, making it even more suitable for recycling.

[0049] In addition, in the container 1 of this embodiment, by having a nozzle cap 4 that can be repeatedly attached and detached from the container body 2, the mouth portion 3 of the container body 2 can be made wider to serve as a liquid receiving port when refilling the contents, thereby reducing the psychological burden of the refilling action. Furthermore, since the nozzle cap 4 can be attached and detached without removing the measuring cap 6, not only is the attachment and detachment operation easy, but when storing the removed nozzle cap 4, the top surface of the measuring cap 6 can be used as a surface to place on the floor, etc., allowing the nozzle cap 4 to be stored stably.

[0050] Furthermore, in the container 1 of this embodiment, the thin-walled region 51 in the deformed portion 50 is formed by the missing portion 53 formed by removing the inner circumferential surface 11a of the outer wall portion 11, which can contribute to reducing the amount of plastic used.

[0051] Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to the examples. The shapes and combinations of the components shown in the above examples are merely examples, and various modifications can be made based on design requirements, etc., without departing from the spirit of the present invention.

[0052] In the above embodiment, the arrangement pitch of the locking portions 9C in the ratchet portion 9 and the arrangement pitch of the deformation portions 50 are the same, but the present invention is not limited to this. For example, the arrangement pitch of the locking portions 9C and the arrangement pitch of the deformation portions 50 may be at least partially different.

[0053] In a configuration in which the arrangement pitch of the locking portions 9C and the arrangement pitch of the deformation portions 50 are the same, the maximum load occurs simultaneously when the protrusions 52 of the multiple deformation portions 50 overcome the locking portions 9C and the large diameter portions 9B of the ratchet portion 9, which may make it difficult for elderly people, women, etc., who have relatively weak gripping and rotating strength, to open the nozzle cap 4.

[0054] In contrast, by adopting a configuration in which the arrangement pitch of the locking portions 9C and the arrangement pitch of the deformation portions 50 are at least partially different, the maximum load does not occur simultaneously when the protrusions 52 of the multiple deformation portions 50 overcome the locking portions 9C and the large diameter portions 9B of the ratchet portion 9. Therefore, even elderly people, women, and the like, who have relatively weak gripping and rotating strength, can easily open the nozzle cap 4.

[0055] On the other hand, when the arrangement pitch of the locking portion 9C and the arrangement pitch of the deformation portion 50 are configured to be at least partially different, even when a portion of the protrusion 52 is not engaged with the ratchet portion 9, the other protrusion 52 can be placed on the ratchet portion 9, and the nozzle cap 4 can be prevented from rotating even a small amount when the measuring cap 6 is opened.

[0056] In the above embodiment, the thin region 51 is formed by the cutout portion 53 formed by cutting out the inner circumferential surface 11a of the outer wall portion 11, but the present invention is not limited to this configuration. The thin-walled region 51 may be formed by a missing portion in the outer peripheral surface 11b of the outer wall portion 11, or by a missing portion in both the inner peripheral surface 11a and the outer peripheral surface 11b of the outer wall portion 11. [Explanation of symbols]

[0057] REFERENCE SIGNS LIST 1...container, 2...container body, 3...mouth portion, 4...nozzle cap, 5...first screw portion, 6...measuring cap, 7...second screw portion, 8...base portion, 9C...engagement portion, 11...outer wall portion, 17...third screw portion, 18...fourth screw portion, 50...deformed portion, 51...thin region, 52...projection portion, 53...missing portion, C...central axis

Claims

1. A container body extending in an axial direction along a central axis and having a mouth portion provided on one side in the axial direction, and in which contents are accommodated; a nozzle cap having an outer wall portion removably attached to the nozzle; a measuring cap that is detachably attached to the nozzle cap; Equipped with the mouth portion has a first thread portion formed on an outer periphery in a circumferential direction about the central axis, the nozzle cap has a second threaded portion provided inside the outer wall portion and engaging with the first threaded portion, and a third threaded portion provided above the outer wall portion and engaging with the measuring cap, the measuring cap has a fourth threaded portion that mates with the third threaded portion; The container body has a locking portion facing one side in the circumferential direction, the nozzle cap has a deformation portion that is elastically deformable outward in a radial direction about the central axis when the nozzle cap is engaged with the locking portion from one side in the circumferential direction, The deformation portion is a protrusion protruding inward in the radial direction from the outer wall portion and facing the locking portion on one side in the circumferential direction; a thin-walled region extending from each of the circumferential ends of the protrusion toward both sides in the circumferential direction and formed by a missing portion obtained by missing at least one of an inner peripheral surface and an outer peripheral surface of the outer wall portion; A container having

2. The missing portion is provided on the inner circumferential surface of the outer wall portion, The protrusion protrudes from a position radially outward from the inner circumferential surface toward a radially inward position from the inner circumferential surface.

2. The container of claim 1.

3. The radial thickness of the thin region is 30% or more, or 60% or more, of the radial thickness of the outer wall portion.

3. A container according to claim 1 or 2.

4. The protrusion is formed by being curved along a curve protruding toward the inside in the radial direction when viewed in a direction along the central axis.

3. A container according to claim 1 or 2.

5. The locking portion and the deformation portion are each disposed at intervals in the circumferential direction, The arrangement pitch of the locking portion and the arrangement pitch of the deformation portion are at least partially different.

3. A container according to claim 1 or 2.

Citation Information

Patent Citations

  • Container with cap

    JP2011111229A