Locking cap
The locking cap with a rotating mechanism and double sealing structure addresses the issue of easy opening in conventional containers, enhancing safety and environmental sustainability by preventing unauthorized access and reducing material waste.
Patent Information
- Application Number
- PCT/KR2025/000075
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-12
- Filing Date
- 2025-01-03
- Publication Date
- 2025-07-17
AI Technical Summary
Conventional cosmetic containers with screw-fastening methods are easily opened, posing a risk of accidental access by young children, the elderly, or individuals with impaired motor skills, and there is a need for improved safety and environmental sustainability in container designs.
A locking cap with a rotating mechanism featuring a locking projection and groove system, including a guide groove and entry/exit groove, that requires specific alignment for opening, and a double sealing structure to enhance security and reduce material usage.
The cap effectively prevents unauthorized access while maintaining airtightness, reduces manufacturing costs, and promotes environmental sustainability by allowing recycling, thus ensuring safety and convenience.
Smart Images

Figure KR2025000075_17072025_PF_FP_ABST
Abstract
Description
lock cap
[0001] The present invention relates to a locking cap, and more specifically, to a locking cap that can lock the inside of a container by rotation and can be applied to various locking methods with one cap part.
[0002] In general, cosmetic containers are used to store cosmetics for various purposes, and most cosmetic containers are equipped with airtight means to prevent deterioration or damage during distribution or storage of cosmetics, and the degree of airtightness varies depending on the purpose or nature of the cosmetics.
[0003] According to recent trends, the development of cosmetic containers is also actively encouraging the development of products that take resource recycling and the environment into consideration, and there is a demand for environmentally friendly products that minimize inconvenience to consumers due to product use or disposal by making it easy to separate and dispose of waste.
[0004] In addition, in the case of conventional cosmetic containers, anyone can easily open the cap because it has a screw-fastening method. However, if the cap is easily opened like this, it can lead to waste of contents by young children who have poor judgment, and there is also a risk of safety accidents such as children eating the contents while out of the supervision of adults, so special care must be taken.
[0005] Therefore, there is a need to improve this.
[0006] The background technology of the present invention is disclosed in Korean Patent Publication No. 10-2011-0002279 (published on January 7, 2011, title of the invention: Sealed safety double cap).
[0007] The present invention has been devised to improve the above-mentioned problems, and aims to provide a locking cap that can be applied to various locking methods with one cap.
[0008] The purpose of the present invention is to provide a locking cap that can prevent safety accidents by preventing children, the elderly, the mentally ill, etc. from easily opening the cap by having a structure that allows the cap to be opened only at a specific position.
[0009] A locking cap according to one aspect of the present invention includes a locking portion that locks a container by rotation of the cap portion, and the locking portion includes a locking projection formed on an inner surface of the cap portion and a locking groove formed on an opening circumferential surface of the container to be engaged with the locking projection, and the locking groove may include a guide groove formed to be inclined downward on the circumference of the container and an entry / exit groove formed on the guide groove portion to allow the locking projection to enter or exit.
[0010] A position fixing jaw for fixing the position of the locking protrusion may be formed in the above guide home portion.
[0011] The above guide home portion can extend in both directions with the entry / exit home portion as the center.
[0012] A position fixing jaw is formed in the above guide groove to fix the position of the locking projection, and the position fixing jaw can be formed in the lower part of the guide groove and the upper part of the guide groove, respectively.
[0013] The position fixing jaws formed at the upper end of the above guide groove are formed on both sides of the above entry / exit groove and can be spaced apart by the thickness of the above locking projection.
[0014] The above locking protrusions may be formed of a plurality of locking projections spaced apart from each other on the inner surface of the cap portion, and the above locking grooves may be formed of a plurality of locking projections spaced apart from each other on the circumferential surface of the container to correspond to the above locking protrusions.
[0015] The adjacent locking grooves can be interconnected.
[0016] The cap part may include a sealing part that seals the opening of the container when the cap part is rotated downward.
[0017] The sealing portion may include a first sealing rib formed on the inner upper surface of the cap portion and in contact with the inner surface of the opening of the container, and a second sealing rib formed on the inner upper surface of the cap portion and in contact with the upper surface of the opening of the container.
[0018] The locking cap according to the present invention can lock the inside of a container by rotation, and can be applied to various locking methods with one cap part, thereby reducing manufacturing costs.
[0019] The present invention can improve sealing power by having a double sealing structure in the sealing portion formed in the cap portion, and can eliminate a separate foam gasket, so that it can be manufactured with a single material, thereby providing a product that is environmentally friendly and allows recycling of resources, and also does not require separate disposal, so that it can provide an environmentally friendly product that minimizes inconvenience to consumers due to use or disposal.
[0020] The present invention improves convenience by forming a guide groove in both directions around the entry / exit groove, thereby enabling two-way locking, and prevents easy opening by children with weak fine motor development, the elderly, the mentally ill, etc., since the locking projection for opening the cap is not easily aligned with the entry / exit groove, thereby ensuring safety.
[0021] FIG. 1 is a perspective view illustrating a locking cap according to one embodiment of the present invention.
[0022] Figure 2 is an exploded perspective view illustrating a locking cap according to one embodiment of the present invention.
[0023] Figure 3 is an enlarged view of a key portion for explaining a locking groove of a locking cap according to one embodiment of the present invention.
[0024] Figure 4 is a cross-sectional view taken along line AA of Figure 1.
[0025] Figure 5 is a drawing showing the operation of a locking cap according to one embodiment of the present invention.
[0026] FIG. 6 is a drawing showing a first modified example of a locking cap according to one embodiment of the present invention.
[0027] Figure 7 is a drawing showing the operation of a first modified example of a locking cap according to one embodiment of the present invention.
[0028] FIG. 8 is a drawing showing a second modified example of a locking cap according to one embodiment of the present invention.
[0029] FIG. 9 is a drawing showing the operation of a second modified example of a lock cap according to one embodiment of the present invention.
[0030] FIG. 10 is a drawing for explaining the use of the cap portion of the lock cap according to one embodiment of the present invention.
[0031] Hereinafter, a preferred embodiment of a locking cap according to one embodiment of the present invention will be described with reference to the attached drawings. In the process, the thickness of lines and the sizes of components depicted in the drawings may be exaggerated for clarity and convenience of explanation.
[0032] Additionally, the terms described below are defined based on their functions within the present invention, and their meanings may vary depending on the intent or custom of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.
[0033] FIG. 1 is a perspective view illustrating a locking cap according to one embodiment of the present invention, FIG. 2 is an exploded perspective view illustrating a locking cap according to one embodiment of the present invention, FIG. 3 is an enlarged view of a main part illustrating a locking groove of a locking cap according to one embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along line AA of FIG. 1.
[0034] Referring to FIGS. 1 to 4, a locking cap (100) according to one embodiment of the present invention may include a cap portion (110) and a locking portion (120) that locks the container (10) by rotation of the cap portion (110).
[0035] The container (10) may be formed into various shapes. As shown, it may be flat, or it may be formed into a container (10) capable of accommodating a large amount of contents. Such a container (10) is formed with a port neck having an opening.
[0036] The cap part (110) opens and closes the opening of the container (10), and the opening of the container (10) can be sealed or opened by the action of the locking part (120) due to the rotation of the cap part (110).
[0037] The cap (110) can be formed in a 'ㄷ' shaped cross-section with an open bottom.
[0038] The locking portion (120) may include a locking projection (122) formed on the inner surface of the cap portion (110) and a locking groove (125) formed on the opening circumference of the container (10) to be combined with the locking projection (122).
[0039] The locking protrusion (122) can be formed in a circular cross-section shape that protrudes from the inner surface of the cap portion (110).
[0040] The locking groove (125) may include a guide groove (126) formed to be inclined downward around the container (10) and an entry / exit groove (128) formed in the guide groove (126) and through which the locking projection (122) enters or leaves.
[0041] The locking groove (125) is formed integrally by being engraved around the opening of the container (10). In this embodiment, the locking groove (125) is shown as being formed integrally around the container (10), but it is not limited thereto. It may be formed as a separate object with a guide groove (126) and an entry / exit groove (128) formed thereon and coupled to the container (10), which is nothing more than a simple design change.
[0042] The locking protrusions (122) may be formed in a plurality of pieces spaced apart from each other on the inner surface of the cap portion (110), and the locking groove portions (125) may be formed in a plurality of pieces spaced apart from each other on the circumferential surface of the container (10) to correspond to the locking protrusions (122).
[0043] In this embodiment, three locations spaced at 120° intervals are illustrated, but this is not limited to this, and various locations may be formed, and it is preferable that two or more locations be formed. Accordingly, when the cap portion (110) rotates, the cap portion (110) can rotate without eccentricity.
[0044] A position fixing protrusion (127) that fixes the position of the locking projection (122) can be formed at the lower end of the guide home portion (126).
[0045] The position fixing jaw (127) is formed in a shape that protrudes upward from the lower surface of the guide groove (126), and the locking projection (122) that extends beyond the position fixing jaw (127) can be fixed in the current position, thereby preventing unintended rotation of the cap portion (110).
[0046] The lower portion of the guide groove (126) may maintain the slope of the guide groove (126) or may be inclined downward more deeply. This allows the locking projection (122) to be guided downward further when it reaches the lower portion of the guide groove (126), so that the inner upper surface of the cap portion (110) can be in closer contact with the upper surface of the opening of the container (10), thereby increasing the sealing force.
[0047] A position fixing protrusion (127) that fixes the position of the locking projection (122) may be formed at the upper end of the guide groove (126). This is formed in the same manner as the position fixing protrusion (127) formed at the lower end, and can function as a configuration that allows not only fixing the position of the locking projection (122) but also recognizing the position of the entry / exit groove (128).
[0048] Accordingly, the user can recognize the closed or openable state of the cap part (110) by the position fixing jaw (127).
[0049] The cap portion (110) may be provided with a sealing portion (130) that seals the opening of the container (10) when the cap portion (110) is rotated downward. The sealing portion (130) may be formed with a double structure to improve sealing power.
[0050] The sealing portion (130) may include a first sealing rib (132) formed on the inner upper surface of the cap portion (110) and in contact with the inner surface of the opening of the container (10), and a second sealing rib (134) formed on the inner upper surface of the cap portion (110) and in contact with the upper surface of the opening of the container (10).
[0051] As illustrated in Fig. 4, the first sealing rib (132) is formed to protrude on the inner upper surface of the cap portion (110). That is, the first sealing rib (132) is formed to protrude downward, and when the cap portion (110) is rotated downward, it can come into contact with the inner surface of the opening of the container (10) to seal the opening of the container (10).
[0052] A tapered portion (133) is formed at the end of the first sealing rib (132) to facilitate introduction into the interior of the opening of the container (10) when the cap portion (110) is lowered.
[0053] The second sealing rib (134) is formed to protrude downward at a certain distance from the first sealing rib (132), and can seal the opening of the container (10) by coming into contact with the upper surface of the opening of the container (10) when the cap part (110) is rotated downward.
[0054] In this way, the sealing force can be strengthened by double sealing using the first sealing rib (132) and the second sealing rib (134). As a result, sealing is possible without a separate foam gasket inside the cap portion (110), and the cap portion (110) can be manufactured from a single material.
[0055] A tapered portion (12) is formed on the upper surface of the container (10). The tapered portion (12) can function as a configuration that guides the easy joining of the cap portion (110).
[0056] A display portion (140) that can visually confirm whether the cap portion (110) is open or closed may be formed on the container (10) and the cap portion (110).
[0057] The display portion (140) is formed on the circumference of the cap portion (110), and may include a first display portion (142) formed to be aligned with the locking projection (122), and a second display portion (144) formed on the container (10) to be selectively aligned with the first display portion (142) according to the rotation of the cap portion (110).
[0058] The second display unit (144) can display the open state and the closed state. The second display unit (144) that can confirm the open state is formed to correspond to the entry / exit groove unit (128), and the second display unit (144) that can confirm the closed state is formed to correspond to the lower part of the guide groove unit (126).
[0059] For example, the display portion (140) may be formed by an engraving or a protrusion formed on the cap portion (110) and the container (10), and various design changes are possible.
[0060] Fig. 5 is a drawing showing the operation of a locking cap according to one embodiment of the present invention. Referring to Fig. 5, when the locking projection (122) of the cap portion (110) is inserted into the entry / exit groove portion (128) and the cap portion (110) is rotated, the locking projection (122) is guided along the guide groove portion (126), so that the cap portion (110) can be lowered to close the opening of the container (10).
[0061] A position fixing protrusion (127) is formed at the bottom of the guide home portion (126) to fix the position of the locking projection (122), thereby preventing unintended opening of the cap portion (110).
[0062] The bottom surface of the cap portion (110) is provided with a sealing portion (130) composed of first and second sealing ribs (132, 134) to seal the opening of the container (10). That is, the first sealing rib (132) is inserted into the interior of the opening of the container (10) to seal it first, and the second sealing rib (134) is in close contact with the upper surface of the opening of the container (10) to seal it secondarily.
[0063] At this time, the lower part of the guide groove (126) is formed to maintain the slope of the guide groove (126) or to have a deeper downward slope so that when the locking projection (122) reaches the lower part of the guide groove (126), it is guided further downward so that the inner upper surface of the cap (110) is in closer contact with the upper surface of the opening of the container (10), thereby increasing the sealing force.
[0064] When a user wants to open the cap part (110), as shown in (a) and (b) of FIG. 5, when the cap part (110) is rotated to one side, the locking projection (122) moves along the guide groove part (126) beyond the position fixing step (127) formed at the lower end of the guide groove part (126), and the cap part (110) is raised from the opening of the container (10).
[0065] The locking projection (122) is fixed beyond the position fixing jaw (127) formed at the top of the guide groove (126) and is aligned with the entry / exit groove (128).
[0066] Afterwards, the cap (110) can be raised and separated from the opening of the container (10) as shown in (c) of Fig. 5, and the contents inside the container (10) can be used.
[0067] When the contents are finished being used, the cap part (110) is covered and the cap part (110) is rotated in the opposite direction of opening, so that the cap part (110) descends by the action of the lock part (120), and the container (10) can be sealed again by the sealing part (130), and the locked state of the cap part (110) can be maintained.
[0068] FIG. 6 is a drawing showing a first modified example of a lock cap according to one embodiment of the present invention, and FIG. 7 is a drawing showing the operation of a first modified example of a lock cap according to one embodiment of the present invention.
[0069] Referring to FIGS. 6 and 7, the guide groove portion (226) can extend in both directions with the entry / exit groove portion (228) as the center. Since the guide groove portion (226) is formed to slope downward on both sides with the entry / exit groove portion (228) as the center, the cap portion (110) can be rotated to the left or right to achieve locking.
[0070] A position fixing jaw (227) for fixing the position of the locking projection (222) is formed in each guide groove (226), and the position fixing jaw (227) is formed in the lower part of the guide groove (226) and the upper part of the guide groove (226), respectively.
[0071] The position fixing jaws (227) formed at the upper part of the guide groove (226) are formed on both sides centered on the entry / exit groove (228) and are spaced apart by the thickness of the locking projection (222).
[0072] When the cap (110) is rotated to the left, it moves along the left guide groove (226) and is fixed to the lower left portion to seal the container (10), and when it is rotated to the right, it moves along the right guide groove (226) and is fixed to the lower right portion to seal the container (10).
[0073] Therefore, the cap (110) can be locked in both left and right directions, thereby improving convenience.
[0074] The cap part (110) can be opened by aligning the locking projection (222) with the entry / exit groove part (228) formed at the upper end of each guide groove part (226). Here, a pair of position fixing protrusions (227) corresponding to the entry / exit groove part (228) are formed, so that the user can recognize the position of the entry / exit groove part (228), and thus easily open the cap part (110).
[0075] Since the location of the entry / exit groove (228) is formed at a position where the guide grooves (226) on both sides are connected rather than at the end of the guide groove (226), it is not easy to open the cap (110) compared to a structure that opens at the end of the rotation of the cap (110), so that easy opening by children with weak fine motor development, the elderly, the mentally ill, etc. can be prevented, thereby ensuring safety.
[0076] FIG. 8 is a drawing showing a second modified example of a lock cap according to one embodiment of the present invention, and FIG. 9 is a drawing showing the operation of the second modified example of a lock cap according to one embodiment of the present invention.
[0077] Referring to FIGS. 8 and 9, the locking protrusions (322) are formed in a plurality of pieces spaced apart from each other on the inner surface of the cap portion (110), and the locking grooves (325) are formed in a plurality of pieces spaced apart from each other on the circumferential surface of the container (10) to correspond to the locking protrusions (322), and adjacent locking grooves (325) can be interconnected.
[0078] In the case of the second modified example, since a guide groove (326) is formed around the entire opening of the container (10), the cap (110) can be continuously rotated 360° while being raised or lowered in the left or right direction along the guide groove (326).
[0079] That is, by interconnecting the lower ends of each guide groove portion (326), a single guide groove portion (326) is formed that surrounds the entire circumference of the container (10), and the entry / exit groove portions (328) can be formed at the upper ends of each of the guide groove portions (326). At this time, the position fixing protrusions (327) formed at the lower ends of the guide groove portions (326) form a pair, and it is preferable that the spacing between them be spaced apart by the thickness of the locking projection (322).
[0080] Accordingly, in the second modified example as well, since the position of the entry / exit groove (328) is formed at a position where the guide grooves (326) on both sides are connected, rather than at the end of the guide groove (326) as in the first modified example, the opening of the cap (110) is not easy compared to a structure that opens at the end of the rotation of the cap (110), so that easy opening by children with weak fine motor development, the elderly, the mentally ill, etc. can be prevented, thereby ensuring safety.
[0081] Fig. 10 is a drawing illustrating the use of a cap portion of a locking cap according to one embodiment of the present invention. Referring to Fig. 10, the cap portion (110) according to the present embodiment can be applied to three locking methods with the same structure.
[0082] The locking projection (122, 222, 322) inserted through the entry / exit groove (128, 228, 328) can be applied without structural change to a locking method in which it is rotated in one direction to lock, a locking method in which it is rotated in both directions to lock, and a locking method in which it can rotate 360°, thereby improving versatility and reducing manufacturing costs. That is, it is manufactured with a single mold and can be universally used in various containers (10).
[0083] According to the present invention, the interior of the container can be locked by rotation, and various locking methods can be applied with a single cap portion, thereby reducing manufacturing costs, and an environmentally friendly product can be provided because it can be manufactured with a single material, and since the locking projection for opening the cap portion and the entry / exit groove portion are not easily aligned, easy opening by children with weak fine motor development, the elderly, the mentally ill, etc. can be prevented, thereby ensuring safety.
[0084] Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.
[0085] Therefore, the true technical protection scope of the present invention should be determined by the patent claims.
Claims
1. Includes a locking part that locks the container by rotation of the cap part, The above locking part comprises a locking projection formed on the inner surface of the cap part; and It includes a locking groove formed on the opening circumference of the container to be combined with the locking projection; The above locking groove is formed with a guide groove that is inclined downward around the circumference of the container; and A lock cap characterized by including an entry / exit groove formed in the above guide groove and through which the locking projection enters or leaves.
2. In paragraph 1, A lock cap characterized in that a position-fixing projection for fixing the position of the locking projection is formed in the above guide home portion.
3. In paragraph 1, A lock cap characterized in that the above guide home portion extends in both directions centered on the entry / exit home portion.
4. In paragraph 3, A position fixing protrusion is formed in the above guide home portion to fix the position of the locking projection. A locking cap characterized in that the above position-fixing jaws are formed at the lower part of the above guide groove part and the upper part of the above guide groove part, respectively.
5. In paragraph 4, A lock cap characterized in that the position-fixing protrusions formed at the upper end of the guide groove are formed on both sides centered on the entry / exit groove and are spaced apart by the thickness of the locking projection.
6. In paragraph 1, The above locking protrusions are formed of a plurality of protrusions spaced apart from each other on the inner surface of the cap portion. A lock cap characterized in that the locking groove is formed of a plurality of locking grooves spaced apart from each other on the circumference of the container so as to correspond to the locking projections.
7. In paragraph 6, A lock cap characterized in that the adjacent locking grooves are interconnected.
8. In paragraph 1, A locking cap characterized in that the cap part includes a sealing part that seals the opening of the container when the cap part is rotated downward.
9. In paragraph 8, The sealing portion is formed on the inner upper surface of the cap portion and is a first sealing rib that comes into contact with the inner surface of the opening of the container; and A locking cap characterized by including a second sealing rib formed on the inner upper surface of the cap portion and in contact with the upper surface of the opening of the container.
Citation Information
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