Wide-mouth container
The wide-mouth container design addresses the challenge of easy label replacement and material adhesion by using a recess and transparent cover for stable, interchangeable display items, including sheets and plates, enhancing design flexibility and durability.
Patent Information
- Application Number
- JP2024037437
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-09-25
AI Technical Summary
Wide-mouth containers for cosmetics and medicines typically require time-consuming and difficult label replacement, and existing methods struggle to accommodate both sheet-like and thicker display materials without peeling off easily.
A wide-mouth container design featuring a recess in the lid with a transparent cover material that forms a storage space, allowing for easy insertion and removal of display items without adhesion, accommodating both thin and thick materials through a specific ratio and structure that maintains stability and visibility.
Enables easy replacement of display items and supports both sheet-like and thick materials, such as cloth or plates, without peeling, ensuring durability and visibility, even under varying conditions.
Smart Images

Figure 2025138382000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a wide-mouth container, and in particular to a wide-mouth container for cosmetics that can display a display material without being attached to the container like a sticker, and that can use not only sheet-like materials but also thick materials such as cloth or plate-like materials as display materials. [Background technology]
[0002] Conventionally, wide-mouth containers formed by attaching a lid to a wide-mouth container body have been known as containers for cosmetics, medicines, etc. (See, for example, Patent Documents 1 and 2.) These wide-mouth containers are typically labeled on the outer periphery with the product name, ingredients of the contents, etc.
[0003] Known methods of labeling include printing directly on the container (see Patent Document 1) and attaching a label listing the product name, ingredients, and the like. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-149318 [Patent Document 2] Japanese Patent Publication No. 2020-073167 Summary of the Invention [Problem to be solved by the invention]
[0005] As mentioned above, wide-mouth containers for cosmetics, medicines, etc. are usually labeled with the product name, ingredients, etc. This labeling not only includes the product name and ingredients, but also has a variety of designs to improve the appearance of the product.
[0006] However, when printing directly on the container as in Patent Document 1, it is not easy to accommodate a wide variety of display contents. Also, once printing has been done, it is difficult to print another image on the container.
[0007] Therefore, a number of labels (display items) on which desired information is printed are prepared in advance, and these labels are attached to wide-mouth containers as appropriate.
[0008] However, even with the method of appropriately attaching labels, replacing the labels or other display items is time-consuming. In other words, removing a label that has already been attached can be time-consuming and difficult, and the label may not come off cleanly.
[0009] Furthermore, sheet-like displays such as labels and stickers lack three-dimensionality and are therefore insufficient from a design perspective. In other words, sheets (such as cloth) or plate-like items (such as photographs, cardboard, medals, etc.) that are thicker than stickers are difficult to attach to wide-mouth containers like stickers, and even if they can be attached, they tend to peel off and fall off easily.
[0010] Therefore, there was a need for the development of a wide-mouth container that could be used to display not only sheet-like items such as stickers, but also thicker sheets or plates (e.g., photographs, cardboard, medals, etc.) as display items.
[0011] The present invention has been made in consideration of the problems associated with the prior art, and its object is to provide a wide-mouthed cosmetic container that can display a display item without having to attach it to the container like a sticker, that does not require much effort to replace the display item, and that can use not only sheet-like items but also thick items such as cloth sheets or plates as display items. [Means for solving the problem]
[0012] According to the present invention, there is provided a wide-mouthed container for cosmetics as follows.
[0013] [1] A container body into which contents are filled; a lid for the container body, the lid body has a recess formed on a top surface thereof and a transparent cover material that is pressed into contact with and fixed to an inner peripheral surface of the recess; The recess in the lid body and the cover material are made of different materials, and the space formed by the recess and the cover material is a storage space having a height of 1.5 mm or more, A wide-mouthed cosmetic container, wherein the width of the fixing region of the cover material, which is the portion that presses against the inner circumferential surface of the recess, is 0.1 mm or more.
[0014] [2] The wide-mouth container described in [1], wherein the lid body has a ratio of the width of the fixing area to the height of the storage space (height of the storage space / width of the fixing area) of 1 to 200.
[0015] [3] The wide-mouth container according to [1] or [2], wherein the lid body has a ratio of the diameter of the cover material to the opening diameter of the recess (diameter of the cover material / opening diameter of the recess) of 0.9 to 0.9999.
[0016] [4] The wide-mouth container described in [1] or [2], wherein the cover material has a guide surface that is a narrow tapered surface extending from the fixing area toward the bottom surface of the recess.
[0017] [5] The height of the storage space is 10 mm or less, the cover material has a top plate portion that is in pressure contact with an inner peripheral surface of the recess, and a guide wall that extends from an outer peripheral portion of the top plate portion toward a bottom surface of the recess, the guide wall has the guide surface, The wide-mouth container according to [4] above, wherein the length of a perpendicular line dropped downward from the tip of the guide wall is shorter than the width of the fixing area.
[0018] [6] The bottom of the container body has a bowl-shaped outer bottom surface and legs located outside the outer bottom surface and extending in the depth direction of the container body, The wide-mouth container according to [1] or [2], wherein a support portion extending in the depth direction of the container body is formed between the outer bottom surface and the leg portion.
[0019] [7] The wide-mouth container described in [6], wherein the tip of the support part is located above the ground contact part which is the tip of the leg part. [Effects of the Invention]
[0020] The wide-mouth container of the present invention has the advantage that it can display a display item without having to stick it on the container like a sticker, it is not time-consuming to replace the display item, and it can also use not only sheet-like items but also thick items such as cloth sheets or plates as display items. [Brief explanation of the drawings]
[0021] [Figure 1] 1 is a perspective view schematically showing one embodiment of a wide-mouth container of the present invention. [Figure 2] 2 is a cross-sectional view schematically showing a cross section in the thickness direction of the lid portion of the wide-mouthed container shown in FIG. 1. FIG. [Figure 3] FIG. 3 is a cross-sectional view schematically showing a cross section corresponding to FIG. 2 in another embodiment of the wide-mouthed container of the present invention. [Figure 4] 2 is an explanatory view schematically illustrating the wide-mouth container shown in FIG. 1 with the cover material of the lid removed. FIG. [Figure 5] 2 is a cross-sectional view schematically showing a cross section in the thickness direction of the container body of the wide-mouthed container shown in FIG. 1. FIG. [Figure 6] FIG. 6 is a plan view schematically showing the state of the container body shown in FIG. 5 as viewed from the bottom side. [Figure 7] 6 is a plan view schematically showing the bottom surface of another embodiment of the wide-mouthed container of the present invention, corresponding to FIG. 5. FIG. [Figure 8] 6 is a cross-sectional view schematically showing a state in which a seal is attached to the container body shown in FIG. 5. FIG. [Figure 9]2 is a perspective view showing a state in which a plurality of coins are placed in the storage space of the wide-mouth container shown in FIG. 1 and checked to see if they fall. FIG. [Figure 10] 2 is a perspective view schematically showing a state in which a display object is placed in the storage space of the wide-mouthed container shown in FIG. 1. FIG. [Figure 11] FIG. 1 is an explanatory diagram schematically illustrating a method for a drop prevention test. [Figure 12] FIG. 10 is an explanatory diagram schematically showing a method for a detachment durability test. DETAILED DESCRIPTION OF THE INVENTION
[0022] The following describes embodiments of the present invention, but it should be understood that the present invention is not limited to the following embodiments, and that appropriate modifications and improvements to the following embodiments based on the ordinary knowledge of those skilled in the art, as long as they do not deviate from the spirit of the present invention, also fall within the scope of the present invention.
[0023] (1) Wide-mouth container: One embodiment of the wide-mouth cosmetic container of the present invention is a wide-mouth cosmetic container 100 shown in Fig. 1. As shown in Fig. 1, this wide-mouth container 100 comprises a container body 10 into which the contents are filled, and a lid 11 for this container body 10. As shown in Fig. 2, the lid 11 has a recess 12 formed in the top surface 11a and a transparent cover material 15 that is fixed by pressure contact with the inner circumferential surface 20a of the recess 12. The recess 12 in the lid 11 and the cover material 15 are made of different materials. The space formed by the recess 12 and the cover material 15 is a storage space 20 that is 1.5 mm or more in height. The width W of the fixing region 30 of the cover material 15, which is the portion that is in pressure contact with the inner circumferential surface 20a of the recess 12, is 0.1 mm or more.
[0024] The wide-mouth container 100 can store a display item in the storage space 20, and various variations in design can be displayed by applying a desired design to the product name, ingredients, etc. written on the display item, or to the display item 200 (see FIG. 10), or by using the display item 200 itself. In this way, the display item 200 can be displayed without being attached to the container like a sticker. Furthermore, because the display item 200 is stored in the storage space 20, replacing the display item 200 is not time-consuming. Furthermore, because the height of the storage space 20 is 1.5 mm or more, not only sheet-like items but also thick items such as cloth sheets or plates can be used as display items.
[0025] The wide-mouth container 100 is not particularly limited in size or shape; for example, if it is a short cylinder, it can have an outer diameter of approximately 15 to 100 mm and a height of approximately 15 to 150 mm. While the shape is often a short cylinder, it is not limited to this and can be a polygonal prism, such as a chamfered square prism. The outer diameter is preferably approximately 15 to 80 mm, and more preferably approximately 20 to 80 mm. The height is preferably approximately 15 to 100 mm, and more preferably approximately 15 to 50 mm.
[0026] (2-1) Container body: The container body 10 is filled with a content, which is a cosmetic material, and the cosmetic material can be any suitable material without any particular limitations.
[0027] Cosmetics may be in solid form (including gel form), semi-solid form (e.g., cream form), liquid form, powder form, etc., and specific examples of liquid cosmetics include lotions, oils, soaps, etc.
[0028] The method for filling the contents is not particularly limited, and any conventionally known method can be appropriately adopted.
[0029] There are no particular limitations on the material of the container body 10, and examples include polyethylene (PE), polypropylene (PP), polycarbonate (PC), polystyrene (PS), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyvinyl alcohol (PVA), polyglycolic acid (PGA), polytrimethylene terephthalate (PTT), acrylonitrile-butadiene-styrene (ABS) resin, polylactic acid (PLA), and acrylic resin (methyl methacrylate (PMMA)).
[0030] (2-1a) Support part: 5, the bottom 40 of the container body 10 may have a bowl-shaped outer bottom surface 41 and leg portions 42 located outside the outer bottom surface 41 and extending in the depth direction F of the container body 10. Support portions 45 may be formed between the outer bottom surface 41 and the leg portions 42, extending in the depth direction F of the container body 10. In this way, stickers and the like can be neatly attached to the bottom 40 of the container body 10.
[0031] That is, in some cases, a sticker or the like is attached to the bottom 40 of the container body 10, but if the bottom 40 has a bowl-shaped outer bottom surface 41, the bowl shape of the outer bottom surface 41 may cause wrinkles to form on the attached sticker, making it difficult to read the letters or the like on the sticker. Therefore, by forming the support portion 45, the support portion 45 can support the outer periphery of the sticker or the like from the back side. This prevents wrinkles from forming on the sticker and also makes it easier to attach the sticker.
[0032] As shown in Fig. 5, the tip of the support part 45 can be positioned higher than the ground contact part S, which is the tip of the leg part 42. In this way, when the wide-mouth container 100 is placed on a desk or floor, it is possible to prevent the surface of the seal or the like from rubbing against the desk or the like. It is preferable that the tip of the support part 45 is at the same height as the apex of the outer bottom surface 41 (see Fig. 5).
[0033] FIG. 6 is a plan view schematically showing the state of the container body shown in FIG. 5 as viewed from the bottom 40 side. As shown in FIG. 6, when support portion 45 is formed, it is possible to prevent wrinkles from forming in the seal and further to easily apply the seal. FIG. 8 is a cross-sectional view schematically showing the state in which seal 150 has been applied to container body 10 shown in FIG. 5. In this way, when outer bottom surface 41 has a curved surface and the seal is larger than outer bottom surface 41, the portion of the seal that abuts the curved surface may bend or wrinkle; however, by forming support portion 45, it is possible to support the outer periphery of the seal and prevent the seal from bending or wrinkle.
[0034] As shown in Fig. 6, the support portion 45 may be annular and surround the outer bottom surface 41. The shape of the support portion 45 is not limited to this annular shape and may be set appropriately, and may be a discontinuous annular structure like the support portion 145 shown in Fig. 7.
[0035] (2-2) Lid: The lid 11 is a lid for the container body 10. The lid 11 has a recess 12 formed in the top surface 11a and a transparent cover material 15 fixed by pressure contact with the inner peripheral surface 20a of the recess 12. By adopting this configuration, when the wide-mouth container 100 is viewed from above, the display object 200 (see FIG. 10) in the storage space 20 can be seen.
[0036] (2-2a) Cover material: The cover material 15 is transparent and is fixed by being pressed against the inner peripheral surface 20a of the recess 12. By providing such a transparent cover material 15, the display object 200 stored in the storage space 20 can be seen from outside the wide-mouth container 100.
[0037] In this specification, "transparent" preferably means colorless transparency, but may also mean colored transparency as long as the display object 200 can be seen.
[0038] The cover material 15 has a fixing region 30, which is a portion that presses against the inner peripheral surface 20a of the recess 12, and its width W is 0.1 mm or more. The width W of this fixing region 30 can be 0.1 to 20 mm, preferably 0.5 to 10 mm, and more preferably 0.8 to 8 mm. Furthermore, the upper limit can be 5 mm, preferably 3 mm. If the width W of the fixing region 30 is less than 0.1 mm, when the recess 12 in the lid 11 and the cover material 15 are made of different materials, the force with which the cover material 15 presses against the inner peripheral surface 20a of the recess 12 may not be sufficient, resulting in the cover material 15 coming off from the recess 12. In particular, if the pressing force is insufficient, the cover material 15 may easily come off, causing the displayed object 200 stored therein to fall out when the wide-mouth container 100 is dropped or subjected to external force.
[0039] The cover material 15 is pressed against the inner peripheral surface 20a of the recess 12, and this pressing force physically fixes the cover material 15 to the recess 12. Because the cover material 15 is not fixed to the recess 12 by adhesive or the like, the cover material 15 can be removed from the recess 12 at a desired time, and the display object 200 can be stored in the storage space 20. Furthermore, when replacing the display object 200, the cover material 15 can be easily removed because it is not fixed to the recess 12.
[0040] There are no particular restrictions on the material of the cover material 15 as long as it meets the above-mentioned specified conditions, and examples include acrylic resin (methyl methacrylate (PMMA)), polyethylene terephthalate (PET), polycarbonate (PC), polyvinyl chloride (PVC), etc.
[0041] However, in the present invention, the recess 12 in the lid 11 and the cover material 15 are made of different materials. That is, it is important that the cover material 15 is transparent in order to ensure the visibility of the display object 200, as described above. On the other hand, it is preferable that the portion of the lid 11 other than the cover material 15 (lid main body 50 (see FIG. 4)) is not transparent in order to block light from entering the contents.
[0042] The material of the lid body 50 (see FIG. 4) is not particularly limited as long as it satisfies the above-mentioned predetermined conditions, and examples thereof include polyethylene (PE), polypropylene (PP), polycarbonate (PC), polystyrene (PS), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyvinyl alcohol (PVA), polyglycolic acid (PGA), polytrimethylene terephthalate (PTT), acrylonitrile-butadiene-styrene (ABS) resin, polylactic acid (PLA), acrylic resin (methyl methacrylate (PMMA)), etc. Here, the same material as that of the container body 10 can be used.
[0043] (2-2a-1) Guide surface: The cover material 15 can have a guide surface 16, which is a narrow tapered surface extending from the fixing region 30 toward the bottom surface 13 of the recess 12 (see FIG. 2). By having this guide surface 16, when fixing the cover material 15 to the recess 12, the cover material 15 is guided by this guide surface 16 and is easily introduced into the recess 12. Therefore, the cover material 15 can be fixed to the recess 12 more easily.
[0044] (2-2a-2) Guide wall: As shown in FIG. 2, the cover material 15 may have a top panel portion 17 that is in pressure contact with the inner peripheral surface 20a of the recess 12, and a guide wall 18 that extends from the outer peripheral portion of the top panel portion 17 toward the bottom surface 13 of the recess 12. The guide wall 18 may have the above-mentioned guide surface 16. Furthermore, the length of a perpendicular line 35 that is dropped downward from the tip of the guide wall 18 may be shorter than the width W of the fixing region 30. When the guide wall 18 is formed, the height H of the storage space 20 may be 10 mm or less. If the height H of the storage space 20 is too high, the guide wall 18 must be made longer, which would make it difficult to handle.
[0045] In FIG. 2 , the length of the perpendicular line 35 is 0 mm. By adopting the above-described configuration, it is possible to prevent the cover material 15 from rotating upside down when subjected to an external force. Specifically, the cover material 15 is pressed against the recess 12. However, if an external force is applied to a portion of the outer periphery of the cover material 15, the balance of the force (pressure) applied from the cover material 15 to the recess 12 may be lost, resulting in the cover material 15 becoming detached. Therefore, by setting the length of the perpendicular line 35 extending downward from the tip of the guide wall 18 to a predetermined length, it is possible to prevent the balance of the pressure force from being lost even when the cover material 15 is subjected to an external force. Therefore, it is possible to prevent the cover material 15 from becoming detached as described above. Furthermore, by forming the guide wall 18, the side surface of the guide wall 18 can be used as the guide wall 18.
[0046] (2-2a-3) Stepped section: As shown in FIG. 3 , the cover 11 can further have a step 25 formed at the opening of the recess 12. By providing this step 25, the length D of the perpendicular line 35 extending downward from the tip of the guide wall 18 satisfies the above-mentioned condition, and the height H of the storage space 20 can be increased while shortening the length of the guide wall 18. In other words, if the height of the storage space 20 is increased (e.g., 10 mm) and the width W of the fixing region 30 is decreased (e.g., 0.1 mm), without forming the step 25, the length of the guide wall 18 would need to be increased (10 mm - 0.1 mm = 9.9 mm) to make the length D of the perpendicular line 35 extending downward from the tip of the guide wall 18 satisfy the above-mentioned condition. On the other hand, by forming the step 25, the length of the guide wall 18 can be shortened.
[0047] (2-2b) Storage space: The storage space 20 is formed by the recess 12 and the cover material 15, and is a space with a height (height of the highest part) of 1.5 mm or more. By forming this storage space 20, not only thin display items such as sheet-like items but also thick items such as sheets or plates of cloth can be stored in this storage space 20, and thick and heavy items can be used as display items. Therefore, in addition to displaying the product name, ingredients of the contents, etc., it is possible to display a variety of designs, including three-dimensional displays.
[0048] The lid body 11 can have a ratio of the width W of the fixing region 30 to the height H of the storage space 20 (height H of the storage space 20 / width W of the fixing region 30) of 1 to 200, preferably 2 to 100, and more preferably 2 to 50. By keeping the ratio within the above range, the cover material 15 is less likely to come off even when a heavy object such as a coin is stored as the display object 200, and problems such as the cover material 15 coming off and the display object 200 falling out of the storage space 20 are less likely to occur. More specifically, from the standpoint of usability and design, a heavy display object (e.g., approximately 30 g) can be stored in the storage space 20, and even if the wide-mouth container 100 is dropped with this display object stored therein, the cover material 15 is less likely to come off. This more reliably prevents the display object from accidentally flying out.
[0049] Furthermore, by satisfying the above conditions, it is possible to prevent the cover material 15 from becoming detached due to thermal expansion forces generated in the wide-mouth container 100. Specifically, for example, the wide-mouth container 100 (within the storage space 20) may become hot due to direct sunlight, such as in midsummer. Because the storage space 20 is sealed (or nearly sealed), thermal expansion forces occur within the storage space 20 when exposed to high temperatures. This thermal expansion force may cause the cover material 15 to become detached from the recess 12. Such thermal expansion forces become stronger as the volume of the storage space 20 increases. Therefore, by satisfying the above range, even if thermal expansion forces occur, they are unlikely to be large enough to cause the cover material 15 to become detached, thereby preventing the cover material 15 from becoming detached from the recess 12. Furthermore, condensation occurs within the storage space 20 due to temperature differences with the outside air. However, as the height of the storage space 20 increases and the storage space 20 becomes wider, the amount of condensation that occurs increases. Such excessive condensation can cause deterioration of displayed items and the growth of mold on the displayed items. Therefore, if the above conditions are met, the volume of the storage space 20 is small, so the amount of condensation that occurs can be reduced, and as a result, deterioration of the displayed items and the occurrence of mold can be prevented.
[0050] In the lid 11, the ratio of the diameter B of the cover material 15 to the opening diameter A of the recess 12 (diameter B of the cover material 15 / opening diameter A of the recess 12) can be 0.9 to 0.9999, preferably 0.9 to 0.999, and more preferably 0.99 to 0.999 (see FIG. 4). When the cover material 15 is fixed to the recess 12 by pressure welding, as described above, if the recess 12 in the lid 11 and the cover material 15 are made of different materials, the cover material 15 tends to come off the recess 12. For this reason, it is important that the fixing region 30 has a predetermined width W, and by setting the value of the ratio within the above range, the cover material 15 becomes even less likely to come off the recess 12.
[0051] (3-2) Manufacturing method for wide-mouth cosmetic containers: The wide-mouth cosmetic container can be manufactured by appropriately employing a conventionally known method. The recess 12 in the lid 11 and the cover material 15 are made of different materials, so they can be manufactured separately. After the display item 200 is stored in the storage space 20, the cover material 15 is fixed to the recess 12, thereby manufacturing a wide-mouth container containing the display item 200.
[0052] (4) How to use a wide-mouth cosmetic container: The wide-mouth cosmetic container of the present invention can be used by storing a display item 200 in the storage space 20. Once the display item 200 has been stored in the storage space 20, it can be replaced with another display item 200 after the cover material 15 has been removed from the recess 12. Figure 4 shows the state in which the cover material 15 has been removed from the recess 12.
[0053] This display object 200 can be not only a thin object such as a sticker, but also a sheet-like object such as a cloth, or a thick object such as a coin. In this way, various types of display object 200 can be used, and a wide variety of display methods can be realized.
[0054] Furthermore, since the wide-mouth container of the present invention has a large storage space 20, it can be used with heavy display items, but even when a heavy display item is stored, the cover material 15 is difficult to come off. [Example]
[0055] The present invention will be specifically described below based on examples, but the present invention is not limited to these examples.
[0056] Example 1 A wide-mouth container 100 for cosmetics as shown in FIG. 1 was fabricated. This wide-mouth container 100 included a container body 10 into which the contents were to be filled and a lid 11 for the container body 10. The lid 11 had a recess 12 formed in the top surface 11a and a colorless, transparent cover material 15 fixed by pressure contact with the inner peripheral surface 20a of the recess 12. The opening diameter of the recess 12 was 47.02 mm. The diameter of the cover material 15 was 47.00 mm. The material of the lid 11 was polyethylene (PE), and the material of the cover material 15 was acrylic resin (methyl methacrylate (PMMA)). Thus, the recess 12 in the lid 11 and the cover material 15 were made of different materials. The material of the container body 10 was the same as that of the lid 11. The space formed by the recess 12 and the cover material 15 was a storage space 20 with a height of 2.3 mm. The width W of the fixing region 30 of the cover material 15, which is the portion that comes into pressure contact with the inner circumferential surface 20a of the recess 12, was 1 mm.
[0057] Furthermore, the cover material 15 had a top plate portion 17 that was in pressure contact with the inner peripheral surface 20a of the recess 12, and a guide wall 18 that extended from the outer peripheral portion of this top plate portion toward the bottom surface 13 of the recess 12. The guide wall 18 also had a guide surface 16, and the length of a perpendicular line 35 dropped downward from the tip of the guide wall 18 was 0 mm, which was shorter than the width (1 mm) of the fixing region 30.
[0058] In this wide-mouth container, the ratio of the width of the fixing area 30 to the height of the storage space 20 (height of storage space / width of fixing area) was 2.3, which was within the range of 1-200.
[0059] This wide-mouth container was subjected to a drop prevention test evaluation as follows: This evaluation shows that the cover material does not easily come off even when a heavy display item such as a coin is placed on it.
[0060] (Fall prevention test evaluation) As shown in Fig. 9, a weight (coin) 201 was placed in the storage space to obtain a wide-mouth container 100. The weight of this weight 201 was 5 g. As shown in Fig. 11, this wide-mouth container 100 was dropped from a height of 20 cm with the bottom 40 of the wide-mouth container 100 facing downwards onto a wooden desk 300, causing the bottom 40 of the wide-mouth container 100 to collide with the desk 300.
[0061] In this way, the drop prevention test was evaluated. The evaluation criteria were as follows: if the cover material of the wide-mouth container did not come off the recess after the above test, it was rated as "pass", and if the cover material came off the recess, it was rated as "fail". The results of this evaluation are shown in Table 1.
[0062] (Evaluation of the detachment durability test) The following detachment durability test was conducted as a model test to demonstrate the effect of the ratio of the width of the fixed region 30 to the height of the storage space 20 (height of the storage space / width of the fixed region) being within the range of 1 to 200. For this detachment durability test, a cylindrical body 61 was prepared, with the bottom of the lid penetrated, as shown in FIG. 12 . A cover material 15 was fitted into this cylindrical body 61 to create a bottomed test specimen 60. A 100 g weight 201 was then placed in this bottomed test specimen 60, and the specimen was allowed to freely fall from a height of 20 cm onto a flat wooden table 300 with the cover material 15 facing downwards. The cover material was then tested and evaluated for detachment from the cylindrical body. The evaluation criteria were as follows: if the cover material of the wide-mouth container did not detach from the cylindrical body after the above test, it was evaluated as "pass"; if the cover material detached from the cylindrical body, it was evaluated as "fail." The evaluation results are shown in Table 1.
[0063] In addition, the display material stored in the storage space of the wide-mouth container of the present invention need only fit into the storage space, and there are no particular restrictions on its weight. However, since this is actually a container for storing cosmetics, if the display material is too heavy, the center of gravity of the container will be higher, which may tend to cause the entire container to become unbalanced. It may also be expected that the lid will become difficult to open. Therefore, in reality, the weight of the display material is approximately 30 g, taking into account the design and other aspects of the wide-mouth container. However, in this test, a weight of "100 g" was adopted as the weight of the weight, as it is well above this weight (30 g).
[0064] (Evaluation of expansion and release test) The wide-mouth container of this example was produced indoors at a temperature of 24°C and a humidity of 58%. This wide-mouth container was left under high temperature conditions (40°C) for 5 hours. After leaving it, the condition of the cover material was visually checked. If the cover material had come off, it was rated as "unacceptable," and if the cover material had not come off, it was rated as "acceptable." The evaluation results are shown in Table 1. This evaluation evaluates whether or not the wide-mouth container (within the storage space) would expand due to exposure to direct sunlight during hot periods such as midsummer, causing a problem such as the cover material coming off. The evaluation results are shown in Table 1.
[0065] (Evaluation of rotation test of cover material) When the cover material was pressed into the recess until the surface and recess were flush with each other, it was checked whether the surface of the cover material was level or not. If it was not level, part of the cover material would lift up. The evaluation results are shown in Table 1.
[0066] Example 2 A wide-mouth container was produced in the same manner as in Example 1, except that the width W of the fixing region 30 of the cover material 15 was 0.1 mm and the height of the storage space 20 was 20 mm (height of the storage space / width of the fixing region: 200). The wide-mouth container of this example was also subjected to various evaluations (evaluation of a drop prevention test, evaluation of a detachment durability test, evaluation of an expansion detachment test, and evaluation of a cover material rotation test). The evaluation results are shown in Table 1.
[0067] The wide-mouth container of this example was evaluated as "pass" in both the drop prevention test and the detachment durability test. The evaluation results of the detachment durability test of this example show that the cover material will not detach even when a weight hits the cover material from a position the height of the storage space (20 mm) away. Furthermore, the evaluation of the expansion detachment test shows that the cover material will not detach even when the wide-mouth container is exposed to high temperatures and thermal expansion forces are generated in the storage space. Thus, it can be seen that the cover material will not detach from the recess when the ratio of the width of the fixing region 30 to the height of the storage space 20 (height of the storage space / width of the fixing region) is within the range of 1 to 200.
[0068] Example 3 A wide-mouth container was produced in the same manner as in Example 1, except that the width W of the fixing region 30 of the cover material 15 was 0.1 mm and the height of the storage space 20 was 25 mm (height of the storage space / width of the fixing region: 250). The wide-mouth container of this example was also subjected to various evaluations (evaluation in a drop prevention test, evaluation in a detachment durability test, evaluation in an expansion detachment test, and evaluation in a cover material rotation test). The evaluation results are shown in Table 1.
[0069] The wide-mouth container of this example was evaluated as "pass" in the drop prevention test. On the other hand, the wide-mouth container of this example was evaluated as "fail" in the detachment durability test. In other words, the evaluation results of the detachment durability test of this example indicate that the cover material will detach if a weight hits the cover material from a position the height of the storage space (25 mm) away. Furthermore, the evaluation of the expansion detachment test indicates that if the storage space height is too large (the volume of the storage space is too large), as in this example, when the wide-mouth container is exposed to high temperatures and thermal expansion forces occur within the storage space, this thermal expansion force will cause the cover material to detach. Thus, it can be seen that the cover material will detach from the recess when the ratio of the width of the fixing region 30 to the height of the storage space 20 (height of the storage space / width of the fixing region) is outside the range of 1 to 200.
[0070] Example 4 A wide-mouth container was produced in the same manner as in Example 1, except that the length of the perpendicular line dropped downward from the tip of the guide wall was 1.5 mm. The wide-mouth container of this example had a width of 1 mm in the fixed region, and the length of the perpendicular line was longer than the width of the fixed region. The wide-mouth container of this example was also subjected to various evaluations (evaluation of a drop prevention test, evaluation of a detachment durability test, evaluation of an expansion detachment test, and evaluation of a cover material rotation test). The evaluation results are shown in Table 1.
[0071] In this example, the evaluation of the drop prevention test and the evaluation of the detachment durability test were both "pass." However, the evaluation of the cover material rotation test was "fail." In other words, in this example, the length of the perpendicular line was longer than the width of the fixed area, so when the cover material was pressed into the recess, the surface of the cover material was not horizontal and a part of it was raised (the cover material was rotated).
[0072] (Comparative Example 1) A wide-mouth container was produced in the same manner as in Example 1, except that the width W of the fixing region 30 of the cover material 15 was set to 0.05 mm. A drop prevention test was performed on the wide-mouth container of Comparative Example 1. The evaluation results are shown in Table 1. Note that, since the drop prevention test was evaluated as "fail" in Comparative Example 1, the detachment durability test, the expansion detachment test, and the cover material rotation test were not evaluated.
[0073] [Table 1]
[0074] As can be seen from the above Examples 1 to 4 and Comparative Example 1, it is possible to display a display item without attaching it to a container like a sticker, and it is not difficult to replace the display item.Furthermore, it is clear that not only sheet-like items but also thick items such as sheets or plates of cloth can be used as display items. [Industrial Applicability]
[0075] The wide-mouth container of the present invention can be used as a wide-mouth container for cosmetics, etc., to be filled with cosmetics. [Explanation of symbols]
[0076] 10: container body, 11: lid, 11a: top surface, 12: recess, 13: bottom surface, 15: cover material, 16: guide surface, 17: top panel portion, 18: guide wall, 20: storage space, 20a: inner peripheral surface, 25: step portion, 30: fixing area, 35: perpendicular line, 40: bottom, 41: outer bottom surface, 42: legs, 45: support portion, 50: lid body, 60: bottomed test piece, 61: cylindrical body, 100: wide-mouth container, 150: seal, 200: display object, 201: weight, 300: desk, A: opening diameter, B: diameter, D: perpendicular line, F: depth direction, H: height of storage space, S: ground contact portion, W: width.
Claims
1. a container body into which contents are filled; a lid for the container body, the lid body has a recess formed on a top surface thereof and a transparent cover material that is pressed into contact with and fixed to an inner peripheral surface of the recess; The recess in the lid body and the cover material are made of different materials, and the space formed by the recess and the cover material is a storage space having a height of 1.5 mm or more, A wide-mouthed cosmetic container, wherein the cover material has a fixing region that is a portion that is pressed against the inner circumferential surface of the recess, and the width of the fixing region is 0.1 mm or more.
2. The wide-mouth container according to claim 1, wherein the lid body has a ratio of the width of the fixing area to the height of the storage space (height of the storage space / width of the fixing area) of 1 to 200.
3. The lid body has a ratio of the diameter of the cover material to the opening diameter of the recess (diameter of the cover material / opening diameter of the recess) of 0.9 to 0.9999.
4. The wide-mouth container according to claim 1 or 2, wherein the cover material has a guide surface that is a narrow tapered surface extending from the fixing region toward the bottom surface of the recess.
5. The height of the storage space is 10 mm or less, the cover material has a top plate portion that is in pressure contact with an inner peripheral surface of the recess, and a guide wall that extends from an outer peripheral portion of the top plate portion toward a bottom surface of the recess, the guide wall has the guide surface, 5. The wide-mouth container according to claim 4, wherein the length of a perpendicular line extending downward from the tip of the guide wall is shorter than the width of the fixing region.
6. The bottom of the container body has a bowl-shaped outer bottom surface and legs located outside the outer bottom surface and extending in a depth direction of the container body, 3. The wide-mouth container according to claim 1, wherein a support portion extending in the depth direction of the container body is formed between the outer bottom surface and the leg portion.
7. The wide-mouth container according to claim 6 , wherein the tip of the support portion is located above the ground contact portion which is the tip of the leg portion.
Citation Information
Patent Citations
Plastic container
JP2009149318A
Wide-mouth container
JP2020073167A