Container with lid

The container with a selectively switchable child lock mechanism addresses the cumbersome nature of existing designs by allowing users to easily toggle the lock based on their needs, enhancing convenience and safety.

JP2025132053APending Publication Date: 2025-09-10YOSHINO KOGYOSHO CO LTD
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Patent Information

Application Number
JP2024029371
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-02-29
Publication Date
2025-09-10

AI Technical Summary

Technical Problem

Existing containers with child lock mechanisms require multiple release operations, making them cumbersome for users without young children.

Method used

A container with a lid that allows the child lock mechanism to be selectively switched between an ON state and an OFF state, using a CR mechanism with a locking member that can be housed inside a notched hole, enabling easy operation based on user preference.

Benefits of technology

The solution provides a user-friendly child lock mechanism that can be easily operated by users in households with or without young children, enhancing convenience and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

To create a container with a lid which is made to be usable by switching on / off a child lock mechanism, according to user's selection.SOLUTION: A container with a lid has a container body, and a lid member 20 provided at an opening of the container body. The lid member 20 comprises a Lower frame part 21, and a lid body 25 in which an upper frame part 26 and a lid plate 27 are provided, and has an engagement part for holding a lid-closed state of the lid member 20, and a CR mechanism B for allowing the lid member 20 to be opened / closed. The CR mechanism B is formed so as to have: an engagement hole 26b formed on an upper frame outside wall 26C; a notch hole 21E formed on a lower frame outside wall 21C; and a rock member 22 formed in an elastic-deformable manner while comprising a connection piece 22a provided inside the engagement hole 26b and the notch hole 21E and a rock piece 22b provided in an engageable manner with respect to an engagement protrusion 26c under the engagement hole 26b.SELECTED DRAWING: Figure 5
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Description

[Technical Field]

[0001] The present invention relates to a container with a lid that has a child lock function. [Background technology]

[0002] To prevent accidents caused by small children, etc., imitating the actions of adults around them, removing the lid of the container and putting the contents in their mouths, without understanding the danger of the contents contained in the container, and accidentally eating or swallowing them, there are known containers with lids that have a function on the lid that makes it difficult for small children, etc., to remove the lid, i.e., a so-called child lock mechanism (hereinafter referred to as a "CR mechanism" as appropriate) (for example, Patent Document 1). The container described in Patent Document 1 has a pair of first fitting portions provided on the front side of the lid body and a second fitting portion provided on the side, and in order to open the opening, it is necessary to release the fitting of both the first fitting portion and the second fitting portion, thereby providing a child lock function. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-95157 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the container described in Patent Document 1, when opening the opening, it is necessary to perform the release operation at least twice at both the first fitting portion on the front side and the second fitting portion on the side side, which is cumbersome for users in households without young children, so there is a demand for the development of a mechanism that allows the child lock function to be used at the user's discretion.

[0005] The present invention aims to solve the problems of the conventional technology described above by creating a container with a lid that allows the child lock mechanism to be switched on and off according to the user's preference. [Means for solving the problem]

[0006] Among the means for solving the above problems, the first means of the present invention is: A lidded container having a container body for accommodating contents and a lid member provided so as to be attachable to a flange provided at an opening of the container body, the lid member includes a lower frame portion assembled to the flange, an upper frame portion fitted to the lower frame portion, and a lid body having a lid plate and closing the opening, and also includes an engagement portion that keeps the lid member in a closed state and a CR mechanism that allows the lid member to be opened and closed, the lower frame portion has a lower frame top wall, and lower frame inner and outer walls disposed opposite each other on the inside and outside of the lower frame top wall, and the upper frame portion is formed by an upper frame top wall, and upper frame inner and outer walls disposed opposite each other on the inside and outside of the upper frame top wall, The CR mechanism is characterized in that it is formed with a hook hole formed in the outer wall of the upper frame, a notch hole formed in the outer wall of the lower frame, and a locking member formed to be elastically deformable and equipped with a connecting piece extending from the top wall of the lower frame and placed within the notch hole and the hook hole, and a locking piece protruding from the tip of the connecting piece and arranged so as to be able to hook onto a hooking protrusion provided at the lower end of the hook hole. In the first aspect of the present invention, the CR mechanism can be set to a child lock state (ON state), thereby preventing accidental ingestion or swallowing by small children and the like.

[0007] A second aspect of the present invention is the above-mentioned first aspect, further comprising the addition that the locking member is capable of being housed inside the notched hole. With the above means, the CR mechanism can be set to the child lock release state (OFF state), so that the container with a lid can be easily opened for users in households without small children.

[0008] Furthermore, the third means of the present invention is the above-mentioned first or second means, with the addition that the engaging portion is formed with an engaging hole formed at the corner between the top wall of the upper frame and the outer wall of the upper frame, and an engaging protrusion protruding from the corner between the top wall of the lower frame and the outer wall of the lower frame toward the outside of the cover member and capable of engaging with the engaging hole. With the above means, the lid can be kept closed at all times regardless of whether the CR mechanism is in the ON state or the OFF state.

[0009] Furthermore, the fourth aspect of the present invention is the first or second aspect, with the addition that the lower frame portion and the lid body are rotatably connected via a hinge portion. With the above means, it is possible to prevent the lid from being lost, and also to open and close the opening with the lid easily and reliably.

[0010] A fifth aspect of the present invention is the above-mentioned first or second aspect, further comprising the step of forming the lower frame portion integrally with the flange. The above means makes it possible to reduce costs by reducing the number of parts. [Effects of the Invention]

[0011] In the present invention, the CR mechanism B can be selectively switched between ON and OFF states, so that in households with small children, the lid can be made more difficult to open by setting it to the child lock state (ON state), and in households without small children, the lid can be made easier to open by setting it to the child lock release state (OFF state). [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a plan view of a lidded container showing an embodiment of the present invention. [Figure 2] FIG. 2 is a front view of the container with lid. [Figure 3]3 is a cross-sectional view taken along the line III-III in FIG. 2, showing the lid in a closed state. [Figure 4] FIG. 4 is a cross-sectional view similar to FIG. 3, showing the lid in an open state. [Figure 5] FIG. 1(a) is a perspective view of the CR mechanism in the child lock state (ON state), and FIG. 1(b) is a cross-sectional view of FIG. [Figure 6] FIG. 1(a) is a perspective view of the CR mechanism in the child lock release state (OFF state), and FIG. 1(b) is a cross-sectional view of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figure 1 is a plan view of a lidded container showing an embodiment of the present invention, Figure 2 is a front view of the lidded container, Figure 3 is a cross-sectional view taken along the arrow III-III in Figure 2 showing the lid closed state, and Figure 4 is a cross-sectional view similar to Figure 3 showing the lid open state.

[0014] The lidded container 1 shown in the embodiment of the present invention is used as a container for storing contents such as detergents in various shapes, such as a ball-shaped liquid covered with a film, or powder. Such a lidded container 1 is mainly composed of a container body 10 and a lid member 20, and these members are formed by injection molding a synthetic resin material such as polypropylene.

[0015] 2 to 4, the container body 10 is a bottomed, rectangular cylindrical (box-shaped) member having a peripheral wall 13 that gradually expands in diameter upward to form a space inside, and a bottom wall 14 at the lower end of the peripheral wall 13. The peripheral wall 13 has a pair of horizontal peripheral walls 13a that are arranged opposite each other in the short direction and extend in the longitudinal direction, and a pair of vertical peripheral walls 13b that are arranged opposite each other in the long direction and extend in the short direction, and is configured to have a storage space S1 with a rectangular cross section inside them. The upper end of the opening 12, i.e., the upper end of the peripheral wall 13, is surrounded by a flange 11 that is formed like an outer brim from the upper end of the peripheral wall 13.

[0016] As shown in FIG. 1, the lid member 20 is formed to have a lower frame portion 21 that is attached to the flange 11 and a lid body 25 that completely closes the opening 12, and in this embodiment, the lower frame portion 21 and the lid body 25 are integrally formed with a hinge portion 29 that rotatably connects them.

[0017] As shown in FIG. 1 , the lower frame portion 21 is a generally U-shaped member in cross section and generally rectangular in plan view, having a lower frame top wall 21A and lower frame inner and outer walls 21B and 21C, respectively, positioned opposite each other on the inside and outside of the lower frame top wall 21A. A lower frame opening 21D is formed inside the lower frame inner wall 21B, allowing it to be mounted onto the flange 11 of the container body 10. The lower frame top wall 21A has a pair of horizontal lower frame top walls 21A1 extending in the longitudinal direction and a pair of vertical lower frame top walls 21A2 extending in the lateral direction. Through holes 21a are formed in multiple locations (eight in this embodiment) of the horizontal lower frame top wall 21A1 near the lower frame outer wall 21C. Undercut-shaped claws 21b are protruding from the inner surface of the lower frame outer wall 21C corresponding to the through holes 21a. When the lower frame portion 21 is assembled to the flange 11, the claws 21b climb over the flange 11 and lock onto its edge, making it possible to firmly assemble the lower frame portion 21 to the flange 11.

[0018] 1, the lid body 25 is formed by a rectangular upper frame portion 26 and a flat cover plate 27 connected to the inside of the upper frame portion 26. The upper frame portion 26 has an upper frame top wall 26A and an upper frame inner wall 26B and an upper frame outer wall 26C disposed opposite each other on the inside and outside of the upper frame top wall 26A, and is formed to be generally U-shaped in cross section and rectangular in plan view. The cover plate 27 is connected to the upper frame inner wall 26B via a groove 28 that is rectangular in plan view and formed around the outer edge of the cover plate 27.

[0019] 1, 3, and 4, hinge portion 29 is thinly formed between the lower end of lower frame outer wall 21C provided at the rear rear side and the lower end of upper frame outer wall 26C to connect them together. Hinge portion 29 may be formed intermittently along the longitudinal direction as shown in FIG. 1, or may be formed continuously.

[0020] The lid member 20 is assembled by pressing the lower frame portion 21 downward from a state in which it is placed on the flange 11 on the container body 10 side, and each claw portion 21b climbs over the flange 11 and engages its edge. As shown in Figures 3 and 4, the lid member 20 is configured to be rotatable around the hinge portion 29 as a fulcrum, and by fitting the upper frame portion 26 of the lid member 20 into the lower frame portion 21, the lidded container 1 can be set in a closed state.

[0021] As shown in FIG. 1, a pair of engagement portions A are provided side by side on the front side of the cover member 20, and a CR mechanism B is provided on the side surface on the right side in the drawing. 3, engagement portion A is formed with engagement hole 26a formed at the corner between upper frame top wall 26A and upper frame outer wall 26C, and engagement protrusion 21c protruding from the corner between horizontal lower frame top wall 21A1 and lower frame outer wall 21C toward the outside of cover member 20. A tab 26D, which is formed by extending a portion of upper frame outer wall 26C downward, is connected to the lower end of engagement hole 26a. An R-portion 21c1 with a predetermined radius of curvature is formed at the upper portion of engagement protrusion 21c, and an engagement corner 21c2 is formed at the lower end thereof.

[0022] Figure 5(a) is a perspective view of the CR mechanism in the child lock state (ON state), Figure 5(b) is a cross-sectional view of Figure 5(a), Figure 6(a) is a perspective view of the CR mechanism in the child lock release state (OFF state), and Figure 6(b) is a cross-sectional view of Figure 6(a). As shown in Figures 5(a)(b) and 6(a)(b), the CR mechanism B is formed with a hook hole 26b formed in the upper frame outer wall 26C, a locking member 22 extending from the horizontal lower frame top wall 21A1, and a cutout hole 21E formed in the lower frame outer wall 21C corresponding to the locking member 22.

[0023] The locking member 22 is configured to be elastically deformable and is a generally T-shaped member having a connecting piece 22a extending from the horizontal lower frame top wall 21A1 toward the outside of the cover member 20 and a locking piece 22b protruding on both the left and right sides from the lower end of the connecting piece 22a. The locking member 22 is arranged in the cutout hole 21E and the latching hole 26b with the connecting piece 22a extended, so that the locking piece 22b can be pulled out to the outside of the upper frame portion 26 (see FIGS. 5(a) and 5(b)). Furthermore, by deforming the connecting piece 22a, the locking piece 22b can be stored inside the cutout hole 21E (see FIGS. 6(a) and 6(b)). The width of the locking piece 22b is longer than the width of the cutout hole 21E but shorter than the width of the latching hole 26b.

[0024] An auxiliary cover-opening operation piece 26E extends from the lower end of the upper frame outer wall 26C at a position directly below the hook hole 26b. A hook projection 26c protrudes from the inner surface of the upper frame outer wall 26C near the lower end of the hook hole 26b. Furthermore, a protruding rib 26d protrudes from the underside of the upper frame top wall 26A. The protruding rib 26d extends in the longitudinal direction and abuts against the upper surface of the horizontal lower frame top wall 21A1 when the upper frame portion 26 is attached to the lower frame portion 21.

[0025] As shown in Fig. 3, when the lid body 25 is rotated in the closing direction from the open state (see Fig. 4), the engagement hole 26a passes over the engagement protrusion 21c and the engagement corner 21c2 engages with the lower end of the engagement hole 26a, thereby closing the lidded container 1. At this time, the inner surface of the tab 26D slides over the rounded portion 21c1 of the engagement protrusion 21c, allowing for smooth engagement.

[0026] When the CR mechanism B is set to the child lock state (ON state), the lock piece 22b constituting the locking member 22 is set to a state in which it is pulled outward from the latch hole 26b, as shown in Figures 5(a) and 5(b). In this state, when the lid body 25 is rotated in the opening direction, the lock piece 22b is present within the rotation range of the latch protrusion 26c formed on the inner surface of the upper frame outer wall 26C, and the latch protrusion 26c latches the lock piece 22b. Therefore, by setting the CR mechanism B to the child lock state (ON state), the lid body 25 can be maintained in a closed state in which rotation is prevented.

[0027] Next, to set the CR mechanism B to the child lock release state (OFF state), the locking member 22 is pressed with a finger or the like in the direction of the arrow shown in FIG. 5(b) (toward the interior of the container). The locking member 22 then passes through the latching hole 26b toward the interior of the container, and the left and right locking pieces 22b abut against the outer surfaces of the left and right lower frame outer walls 21C, which have the notched holes 21E. Further pressing the locking member 22 causes the left and right locking pieces 22b to bend and deform against the outer surfaces of the left and right lower frame outer walls 21C, as shown in FIGS. 6(a) and 6(b). This allows the locking member 22 to be stored inside the notched holes 21E. After storage, the locking member 22 does not spontaneously return to its original ON state because the locking pieces 22b are latched to the inner surfaces of the left and right lower frame outer walls 21C. This releases the latching between the latching protrusions 26c and the locking pieces 22b. Therefore, by setting the CR mechanism B to the child lock release state (OFF state), the rotation of the cover body 25 is permitted, and it becomes possible to set the cover to the open state. Furthermore, to return the CR mechanism B to the child lock state (ON state), insert a finger from a position below the outside of the cover member 20 into the inside of the lower frame outer wall 21C and push the locking member 22 outward, deforming the locking piece 22b and pushing it out to the outer surface of the left and right lower frame outer walls 21C.

[0028] Next, to change the lidded container 1 from the closed state to the open state, with the CR mechanism B set to the child lock release state (OFF state), the tab 26D is pulled back toward the user, causing the upper frame outer wall 26C on the front side to deform slightly forward and lift up. This disengages the engagement holes 26a and the engagement protrusions 21c at the pair of engagement portions A on the front side. Therefore, as shown in FIG. 4, by further lifting the tab 26D, the lid 25 can be rotated around the hinge portion 29, and the lidded container 1 can be placed in the open state.

[0029] As described above, in the present invention, the CR mechanism B can be selectively switched between the ON state and the OFF state, so that in households with young children, the lid body 25 can be made difficult to open by setting it to the child lock state (ON state), and in households without young children, the lid body 25 can be made easier to open by setting it to the child lock release state (OFF state).

[0030] The configuration and effects of the present invention have been described above in accordance with the embodiments, but the embodiments of the present invention are not limited to those described above.

[0031] For example, in the above embodiment, a box-shaped container has been shown and described as the container with lid 1, but the container may have other shapes, such as a cylindrical or polygonal container.

[0032] In addition, in the above embodiment, a configuration in which the CR mechanism B is provided in only one location on one side has been described, but it is also possible to provide it in multiple locations depending on the size of the lidded container 1.

[0033] In the above embodiment, the lid 25 and the lower frame 21 are integrally formed via the hinge 29. However, the lid 25 and the lower frame 21 may be formed as separate members without the hinge 29. In this case, it is preferable to provide the engagement portion A on both the front and rear sides, and the CR mechanism B on either the left or right side or on both sides. In this case, the lower frame 21 may be integrally formed with the flange 11 of the container body 10.

[0034] Furthermore, in the above embodiment, a configuration has been described in which a pair of engaging portions A are provided side by side on the front side of cover member 20, but it is also possible to have a configuration in which one engaging portion A is provided. Furthermore, in the above embodiment, a case has been described in which engaging portion A is configured by engaging hole 26a provided in upper frame portion 26 and engaging protrusion 21c provided in lower frame portion 21, but other configurations are also possible, for example, a configuration in which an engaging protrusion is formed on the upper frame portion 26 side and an engaged protrusion that can engage with this is provided on the lower frame portion 21 side. [Industrial Applicability]

[0035] The present invention can expand the applications of lidded containers equipped with child lock functions to an even wider range of areas. [Explanation of symbols]

[0036] 1: Container with lid 10: Container body 11: Flange 12: Opening 13: Peripheral wall 13a: Horizontal wall 13b: Vertical wall 14: Bottom wall 20: Lid member 21: Lower frame part 21A: Lower frame top wall 21A1: Horizontal bottom frame top wall 21A2: Vertical bottom frame top wall 21B: Lower frame inner wall 21C: Lower frame exterior wall 21D: Lower frame opening 21E: Notched hole 21a: Through hole 21b: Claw part 21c: Engagement protrusion 21c1 :R section 21c2: Engagement corner 22: Locking member 22a: Continuous piece 22b: Lock piece 25: Lid 26: Upper frame part 26A: Upper frame top wall 26B: Upper frame inner wall 26C: Upper frame exterior wall 26D: knob 26E: Lid opening operation piece 26a: Engagement hole 26b:Latching hole 26c:Latching protrusion 26d: Convex rib 27: Lid plate 28: Groove 29: Hinge part A: Engagement part B: CR mechanism (child lock mechanism) S1: Storage space

Claims

1. A lidded container having a container body (10) for accommodating contents and a lid member (20) that can be attached to a flange (11) provided at an opening (12) of the container body (10), The lid member (20) includes a lower frame portion (21) assembled to the flange (11), an upper frame portion (26) fitted to the lower frame portion (21), and a lid body (25) having a lid plate (27) and closing the opening portion (12), and also includes an engagement portion (A) that keeps the lid member (20) in a closed state and a CR mechanism (B) that allows the lid member (20) to be opened and closed, The lower frame portion (21) has a lower frame top wall (21A), and a lower frame inner wall (21B) and a lower frame outer wall (21C) arranged opposite the inside and outside of the lower frame top wall (21A), respectively; the upper frame portion (26) is formed by an upper frame top wall (26A), and an upper frame inner wall (26B) and an upper frame outer wall (26C) arranged opposite the inside and outside of the upper frame top wall (26A), respectively; The CR mechanism (B) is a lidded container characterized in that it is formed having a hooking hole (26b) formed in the upper frame outer wall (26C), a notched hole (21E) formed in the lower frame outer wall (21C), a connecting piece (22a) extending from the lower frame top wall (21A) and arranged within the notched hole (21E) and the hooking hole (26b), and a locking member (22) formed to be elastically deformable and equipped with a locking piece (22b) protruding from the tip of the connecting piece (22a) and arranged so as to be able to hook onto a hooking protrusion (26c) provided at the lower end of the hooking hole (26b).

2. 2. The container with lid according to claim 1, wherein the locking member (22) can be housed inside the notched hole (21E).

3. A lidded container as described in claim 1 or 2, wherein the engagement portion (A) is formed having an engagement hole (26a) formed at the corner between the upper frame top wall (26A) and the upper frame outer wall (26C), and an engagement protrusion (21c) protruding from the corner between the lower frame top wall (21A) and the lower frame outer wall (21C) toward the outside of the lid member (20) and capable of engaging with the engagement hole (26a).

4. 3. The container with lid according to claim 1, wherein the lower frame (21) and the lid (25) are rotatably connected via a hinge (29).

5. 3. A container with lid according to claim 1, wherein the lower frame portion (21) is integrally formed with the flange (11).

Citation Information

Patent Citations

  • Container

    JP2017095157A