container
The container design secures the small container body to the main container's lid, preventing falls and facilitating steam release through a gap and easy detachment mechanisms, addressing the issues of conventional designs.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- GIFU PLAST IND CO LTD
- Filing Date
- 2025-02-25
- Publication Date
- 2026-07-09
AI Technical Summary
Conventional containers with separate compartments risk the small container body falling due to external forces or internal pressure changes, such as when heated in a microwave.
A container design where the small container body is attached to the back side of the main container's lid, with a gap allowing the lid to float and release steam, and a finger-holding recess for easy removal, secured by screwing or engaging mechanisms.
Prevents the small container body from falling and allows steam release, ensuring secure attachment and easy detachment under external forces or pressure changes.
Smart Images

Figure 2026116095000001_ABST
Abstract
Description
Technical Field
[0005] , ,
[0001] The present invention relates to a container.
Background Art
[0002] Conventionally, a container capable of separately accommodating at least two contents has been known. For example, the container disclosed in Patent Document 1 includes a container body capable of accommodating a first content and a small container body capable of accommodating a second content. And the small container body is placed and fixed in an accommodation hole provided on the upper surface of a lid body that can be attached to the container body. However, although the small container body is placed and fixed in the accommodation hole, there is a risk that it may come out of the accommodation hole of the lid body and fall due to an accidental external force or the like.
[0003]
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] Therefore, in view of the above problems, the present invention provides a container that can effectively prevent the small container body from falling.
Means for Solving the Problems
[0005] In order to solve the above problems, the container according to claim 1 of the present invention is a container including a container body capable of accommodating a first content and a small container body capable of accommodating a second content, and a container body side lid body that can be attached so as to cover an opening on the upper end side of the container body, and the upper part of the small container body. The small container body comprises a small container side lid that can be attached to cover the opening at the end, and the small container body is characterized in that it can be attached to the back side of the container body side lid when the small container side lid is attached.
[0006] According to the above features, since the small container body is fixed while housed inside the main container, even if unintended external forces are applied to the main container, the small container body is less likely to be affected, and it is possible to effectively prevent the small container body from detaching and falling.
[0007] Furthermore, the container according to claim 2 of the present invention is characterized in that, when the small container body to which the small container side lid is attached is attached to the back side of the container body side lid, a gap is provided between the top of the small container side lid and the back side of the container body side lid.
[0008] According to the above features, even if the internal pressure inside the small container body increases when the container is heated in a microwave or the like, the lid of the small container body can detach from the small container body by floating upward within the gap, allowing steam and other liquids inside the small container body to escape.
[0009] Furthermore, the container according to claim 3 of the present invention is characterized in that the small container body is provided with a finger-holding recess.
[0010] Based on the above features, the small container's side lid can be easily removed by placing a finger in the finger-grip recess.
[0011] Furthermore, the container according to claim 4 of the present invention is characterized in that the small container body can be attached to the back side of the container body side lid by engaging with or screwing it in, and the small container side lid can be fitted to the upper end side of the small container body.
[0012] According to the above features, the small container body is securely attached to the lid of the main container body to prevent it from falling off during transport, and the lid of the small container body is attached to the small container body in a way that makes it easy to detach if internal pressure is applied to the small container body. [Effects of the Invention]
[0013] According to the container of the present invention, it is possible to effectively prevent the small container body from falling.
Brief Description of the Drawings
[0014] [Figure 1] FIG. 1(a) is an overall perspective view of the container body 100, FIG. 1(b) is a side view of the container body 100, and FIG. 1(c) is a plan view of the container body 100. [Figure 2] FIG. 2(a) is a front perspective view of the container body side lid 200, and FIG. 2(b) is a rear perspective view of the container body side lid 200. [Figure 3] FIG. 3(a) is a plan view of the container body side lid 200, FIG. 2(b) is a bottom view of the container body side lid 200, and FIG. 2(c) is a sectional view taken along line A-A. [Figure 4] FIG. 4(a) is an overall perspective view of the small container body 300, FIG. 4(b) is a side view of the small container body 300, and FIG. 4(c) is a plan view of the small container body 300. [Figure 5] FIG. 5 is an exploded perspective view of the container 900. [Figure 6] FIG. 6(a) is a perspective view of the container 900, and FIG. 6(b) is a plan view of the container 900. [Figure 7] FIG. 7(a) is a sectional view taken along line B-B, and FIG. 7(b) is an enlarged sectional view taken along line B-B around the attachment body 260.
Explanation of Reference Numerals
[0015] 100 Container body 121 Upper end 130 Opening 200 Container body side lid 211 Inner surface 300 Small container body 321 Upper end 400 Small container side lid
[0016] Embodiments of the present invention will be described below with reference to the drawings. In this specification, "upward" refers to the direction that points upward in the vertical direction when the container body is placed on a horizontal surface with its opening facing upward, and "downward" refers to the direction that points downward in the vertical direction.
[0017] Figure 1 shows the container body 100 of the container 900 of the present invention. Figure 1(a) is an overall perspective view of the container body 100, Figure 1(b) is a side view of the container body 100, and Figure 1(c) is a top view of the container body 100.
[0018] As shown in Figure 1, the container body 100 is cylindrical in shape and made entirely of synthetic resin, and includes a bottom surface 110, side surfaces 120 rising from the bottom surface 110, a storage space 101 enclosed by the bottom surface 110 and side surfaces 120, and an opening 130 that opens upward on the upper end 121 side of the side surfaces 120. Any contents, such as salad or soup, can be placed into the storage space 101 through the opening 130. Furthermore, a container body mounting portion 140 in the form of a spiral screw thread is provided on the upper end 121 side of the side 120. Below the container body mounting portion 140, a flange portion 150 is provided that protrudes outward from the side 120. A handle, either integrated with or separate from the side 120, may be provided on the outer surface of the side 120 of the container body 100.
[0019] Next, Figures 2 and 3 show the container body side lid 200 of the container 900 of the present invention. Figure 2(a) is a perspective view of the front side of the container body side lid 200, Figure 2(b) is a perspective view of the back side of the container body side lid 200, Figure 3(a) is a plan view of the container body side lid 200, Figure 3(b) is a bottom view of the container body side lid 200, and Figure 3(c) is a cross-sectional view of AA.
[0020] As shown in Figures 2 and 3, the container body side lid 200 is made entirely of synthetic resin and has a top surface 210, a side surface 220 extending downward from the top surface 210, an opening 230 that opens downward, and a first mounting portion 240 in the form of a helical screw thread on the inner surface of the lower end 221 of the side surface 220. A stepped portion 250 is provided above the first mounting portion 240. Furthermore, a cylindrical mounting body 260 extending downward is provided on the back surface 211 of the top surface 210 of the container body side lid 200. This mounting body 260 has an opening 261 that opens downward, and a screw on the inner surface of the mounting body 260. A second mounting portion 262 with a spiral screw thread shape is provided. Furthermore, the height of the screw threads of the first mounting portion 240 and the thickness of the container body side lid 200 (the thickness of the top surface 210 and the thickness of the side surfaces 220) are equivalent. Additionally, a packing is attached around the first mounting portion 240 to improve airtightness. You may do so.
[0021] Furthermore, the container body lid 200, including the threaded second mounting portion 262 and the first mounting portion 240, is injection molded using a mold. However, by rotating the mold located on the outside of the container body lid 200, the container body lid 200 rotates along with the rotating mold, making it easier to remove the mold and preventing marks from the mold fixing recess from being left on the container body lid 200.
[0022] Next, Figure 4 shows the small container body 300 of the container 900 of the present invention. Figure 4(a) is an overall perspective view of the small container body 300, Figure 4(b) is a side view of the small container body 300, and Figure 4(c) is a top view of the small container body 300.
[0023] As shown in Figure 3, the small container body 300 is cylindrical in shape and made entirely of synthetic resin. It comprises a bottom surface 310, a side surface 320 rising from the bottom surface 310, a storage space 301, and an opening 330 that opens upward on the upper end 321 side of the side surface 320. Any contents, such as salad dressing or small diced bread, can be placed into the storage space 301 through the opening 330. A small container side mounting portion 340 in the form of a spiral screw thread is provided on the upper end 321 side of the side surface 320. Below the small container side mounting portion 340, a flange portion 350 is provided that protrudes outward from the side surface 320.
[0024] The upper end 321 side of the side 320 is provided with an inwardly concave fitting portion 370. Additionally, the upper end 321 side of the side 320 is provided with a finger-grip recess 360 that is recessed inward from the surface of the side 320, and this finger-grip recess 360 is continuous with the fitting portion 370. The small container side lid 400, described later, is attached to the fitting portion 370, and the finger-grip recess 360 makes it easy to remove the small container side lid 400 by placing a finger on it.
[0025] Next, Figures 5 to 7 show the container 900 of the present invention. Figure 5 is an exploded perspective view of the container 900, Figure 6(a) is a perspective view of the container 900, Figure 6(b) is a plan view of the container 900, Figure 7(a) is a cross-sectional view along B-B, and Figure 7(b) is an enlarged cross-sectional view along B-B around the mounting body 260.
[0026] As shown in Figures 5 to 7, the first contents (not shown) can be stored in the storage space 101 of the container body 100, and the second contents (not shown) can be stored in the storage space 301 of the small container body 300. The small container side lid 400 is attached so as to cover the opening 330 of the small container body 300. The small container side lid 400 is sized to cover the opening 330 of the small container body 300, is made entirely of synthetic resin, and is roughly circular in shape to match the opening 330. Specifically, the top surface 410 and the outer end 411 of the top surface 410 are provided with fitting grooves 420 that are recessed upward, and the inner surface of the outer side of the fitting grooves 420 is provided with engaging claws 421 that protrude inward. Then, by fitting the fitting groove 420 of the small container side lid 400 onto the upper end 321 of the small container body 300 and engaging the engaging claw 421 into the concave fitting portion 370, the small container side lid 400 covers the opening 330 of the small container body 300 and is attached in a way that makes it easy to detach when internal pressure is applied to the small container body 300. In addition, the small container side lid 400 is made of a softer material than the small container body 300, making it easy to detach.
[0027] The small container side lid 400 is attached by fitting it onto the fitting portion 370, but is not limited to this. Any attachment method is acceptable as long as it covers the opening 330 of the small container body 300 and can be attached in a way that makes it easy to detach when internal pressure is applied to the small container body 300. For example, a recess may be provided on the inside of the upper end of the small container body 300, and a protrusion may be provided on the small container side lid 400, and they may be attached by engaging with each other. Steam holes may also be provided on the small container side lid 400 and the container body side lid 200. Furthermore, the fitting groove 420 is made thinner than the thickness of the top surface 410 to make it easily deformable, easy to fit and detach. Furthermore, the engaging claw 421 is small The gasket may be provided around the entire circumference or in part of the container side cover 400. Alternatively, a gasket may be attached around the fitting groove 420 to improve airtightness.
[0028] Next, the small container body 300 with the small container side lid 400 attached is attached to the back surface 211 side of the container body side lid 200. Specifically, the upper end of the small container body 300 is inserted into the opening 261 of the mounting body 260 of the container body side lid 200, and the small container body 300 is rotated to screw the threaded small container side mounting portion 340 of the small container body 300 into the threaded second mounting portion 262 of the mounting body 260. As the small container body 300 is continued to be screwed in, the flange portion 350 of the small container body 300 will come into contact with the lower end 263 of the mounting body 260 and stop, completing the attachment of the small container body 300 to the container body side lid 200.
[0029] As shown in Figure 7, with the small container body 300 attached to the back surface 211 of the container body side lid 200, a gap X is provided between the top of the small container side lid 400 and the back surface 211 of the container body side lid 200. Therefore, when the container 900 is heated in a microwave oven or the like, even if the internal pressure inside the small container body 300 rises, the small container side lid 400 can detach from the small container body 300 by floating upward within the range of the gap X, thereby allowing steam and other substances inside the small container body 300 to escape. In addition, by providing grooves (for example, grooves between screw threads) in the first mounting portion 240 of the container body side lid 200 and the container body side mounting portion 140 of the container body 100, steam and other substances inside the container 900 can be discharged to the outside.
[0030] Furthermore, mounting members 260 for the container body side cover 200 are arranged around the small container side cover 400, preventing the detached small container side cover 400 from shifting laterally from the opening 330 of the small container body 300. In addition, the mounting members 260 and the second mounting portion 262 are provided so as to encircle the container body side cover 200, but are not limited to this, and any configuration is possible, for example, by providing them intermittently at three locations. In addition, the mounting members 260 and the second mounting portion 262 extend downward from the back surface 211 of the container body side cover 200, The mounting body 260 and the second mounting portion 262 may be configured in any way, such as being provided on the inner surface of the side surface 220, as long as the small container body 300 can be attached to the back surface 211 of the container body side lid 200.
[0031] The top of the small container side lid 400 refers to the top surface 410 of the small container side lid 400 or the area near the top of the fitting groove 420 of the small container side lid 400. It may also be any position above the small container side lid 400, as long as the small container side lid 400 can be detached from the small container body 300 by floating upwards.
[0032] Next, the container body side lid 200 with the small container body 300 attached is attached to the container body 100. Specifically, the opening 230 of the container body side lid 200 covers the opening 130 of the container body 100 from above, and by rotating the container body side lid 200, the threaded first mounting portion 240 of the container body side lid 200 is screwed into the threaded container body side mounting portion 140 of the container body 100. As the container body side lid 200 is continued to be screwed in, the lower end 221 of the container body side lid 200 comes into contact with the flange portion 150 of the container body 100 and stops, completing the attachment of the container body side lid 200 to the container body 100.
[0033] In this way, the small container body 300 can be attached to the back surface 211 side of the container body side lid 200, and the container body side lid 200 can be attached to the container body 100. As a result, the small container body 300 is fixed in a state where it is housed inside the container 900, so even if an unintended external force is applied to the container 900, the small container body 300 is less likely to be affected, and the small container body 300 can be effectively prevented from coming loose and falling.
[0034] As shown in Figure 7(b), the length L3, which is the sum of the length L1 from the top surface of the flange portion 350 of the small container body 300 to the upper end 321 and the thickness L2 of the fitting groove 420 of the small container side lid 400, is shorter than the length L4 of the mounting body 260 of the container body side lid 200, so a gap G is provided. Furthermore, this gap G is equal to or longer than the engaging claw 421 or the fitting portion 370, allowing the small container side lid 400 to detach. In addition, the small container side lid 400 has recesses or ribs formed on its upper surface, which reduces the likelihood of it sticking to water droplets on the container body side lid 200 even when detached from the small container body 300. Furthermore, a clearance M is provided between the outer circumference of the small container side lid 400 and the mounting body 260. Note that the clearance M is narrower than the thickness of the small container side lid 400.
[0035] Furthermore, as shown in Figure 7, by recessing the top surface 410 of the small container side lid 400, the outer circumference of the top surface 410 is brought into contact with the inside of the upper end 321 of the small container body 300, making it easier to stop water from entering. Also, the contact point between the outer circumference of the top surface 410 and the inside of the upper end 321 is equivalent to that of the engaging claw 421. The height is such that the engagement claw 421 is lower. Therefore, even if the small container side lid 400 moves, the contents are less likely to spill, and even if there is a load due to vibration during transport or if the fitting groove 420 of the small container side lid 400 opens outward, the contents are less likely to spill. In addition, by positioning the outer end 411 of the small container side lid 400 inward from the outer circumference portion 322 of the small container body 300, when attaching the small container body 300 to the back surface 211 side of the container body side lid 200, the engagement point between the small container side lid 400 and the small container body 300 (near the fitting groove 420) is less likely to come into contact with the mounting body 260 of the container body side lid 200, thus preventing the small container side lid 400 from being difficult to fit.
[0036] In this example, the small container body 300 is attached to the container body lid 200 by screwing the threaded mounting portion 340 on the small container body 300 into the threaded second mounting portion 262 on the container body lid 200. However, the method is not limited to this. For example, a hook-shaped engaging portion extending horizontally may be provided on the back surface 211 of the container body lid 200, and a protruding engaging portion may be provided on the small container body 300. The engaging portion of the small container body 300 may be engaged with the engaging portion of the container body lid 200, thereby securely fixing the small container body 300 to the container body lid 200 to prevent it from falling during transport. The small container body 300 may be attached to the container body side lid 200 by any method.
[0037] The container body lid 200 is provided with elongated inner ribs 272 along the upper circular upper inner surface 270 above the stepped portion 250, in order to release the first mounting portion 240 and the second mounting portion 262 from the mold by injection molding. The elongated inner ribs 272 are provided from the lower end of the upper inner surface 270 to the upper curved surface 271 above the upper inner surface, and the length of the elongated inner ribs 272 is made longer than the width of the vertical region of the first mounting portion 240 and the second mounting portion 262, with multiple ribs evenly distributed around the entire circumference of the upper inner surface 270. The shape of the elongated inner ribs 272 is an elongated rectangular cross-section with tapered upper and lower ends, and may be higher or lower than the amount of protrusion of the joint between the first mounting portion 240 and the second mounting portion 262. The vertically elongated inner rib 272 is not limited to this and may be provided on the outer surface 264 of the mounting body 260 or in areas other than the first mounting portion 240 and the second mounting portion 262.
[0038] The injection molding of the container body lid 200 involves combining a fixed mold and a movable mold, pouring resin, and then separating the movable mold from the fixed mold to remove the container body lid 200. The mold inside the container body lid 200 is divided into multiple block molds to release the interlocking portions of the first mounting portion 240 and the second mounting portion 262 from the mold. This block mold is provided with a rotating core mold and a fixed core mold, and the rotating core mold engages with the elongated inner rib 272 of the container body lid 200, engaging the interlocking portions of the first mounting portion 240 and / or the second mounting portion 262 with the fixed core mold. When releasing the container body lid 200, the rotating core mold is rotated simultaneously with the container body lid 200 to release it. The container body side lid 200 is provided with block mold cleavage lines (minor ribs) at the lower end 221 of the first mounting portion 240 and / or the lower end 263 of the second mounting portion 262. Furthermore, block mold cleavage lines (minor ribs) may also be provided on the stepped portion 250 of the container body side lid 200.
[0039] In the injection molding of the container body side lid 200, the rotary core mold and the container body side lid 200 are engaged by the vertically elongated inner rib 272 to release the interlocking portions of the first mounting portion 240 and the second mounting portion 262. However, the method is not limited to this, and polygonal or irregular shapes may be provided all around or in part on the upper inner surface 270 or the outer surface of the mounting portion 260.
[0040] Furthermore, the container of the present invention is not limited to the above-described embodiments, and various modifications and combinations are possible within the scope of the claims and embodiments, and these modifications and combinations are also included within the scope of the patent rights.
Claims
1. A container comprising a container body capable of holding a first contents and a small container body capable of holding a second contents, wherein the container body side lid can be attached so as to cover the opening on the upper end side of the container body, and the small container side lid can be attached so as to cover the opening on the upper end side of the small container body, the small container body being capable of being attached to the back side of the container body side lid when the small container side lid is attached.
2. The container according to claim 1, characterized in that when the small container body to which the small container side lid is attached is attached to the back side of the container body side lid, a gap is provided between the top of the small container side lid and the back side of the container body side lid.
3. The container according to claim 1 or 2, characterized in that the small container body is provided with a finger rest.
4. The container according to claim 1 or 2, characterized in that the small container body can be attached to the back side of the container body side lid by engaging with or screwing it in, and the small container side lid can be fitted to the upper end side of the small container body.