Container, method of using container, and method of manufacturing container

Abstract

To provide a container which can be smoothly slid.SOLUTION: According to one aspect of the present invention, there is provided a container 100 including a container body 1, a lid 2 that is attached to the container body 1 by being moved relative to the container body 1 from one end side to the other end side in a sliding direction, and a fitting structure that fixes the lid 2 to the container body 1. The container body 1 has a pair of guide sides 13 extending in the sliding direction and facing each other, and each guide side 13 has a guide part and an erected part 132 erected on the lid side more than the guide part in at least a part thereof. The lid 2 has a pair of slide sides 23 extending in the sliding direction and facing each other, each slide side 23 has a slide portion 231 guided by the guide portion, and the fitting structure has a first fitting portion provided on one of the container body 1 and the lid 2, and a second fitting portion provided on the other and fitted to the first fitting portion.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a container, a method for using the container, and a method for making the container. [Background technology]

[0002] Patent Document 1 describes that in order to easily open the container, the lid is opened and closed by sliding it relative to the container body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-219100 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the container described in Patent Document 1 does not have a mechanism for guiding the sliding movement of the lid relative to the container body, and therefore the sliding movement cannot be performed smoothly. [Means for solving the problem]

[0005] According to one aspect of the present invention, there is provided a container comprising a container body, a lid body that is attached by moving it relatively from one end side to the other end side in a sliding direction relative to the container body, and an engaging structure that secures the lid body to the container body, wherein the container body has a pair of opposing guide edges that extend in the sliding direction, and each guide edge has, on at least a portion thereof, a guide portion and an upright portion that stands on the lid body side relative to the guide portion, the lid body has a pair of opposing slide edges that extend in the sliding direction, and each slide edge has a slide portion that is guided by the guide portions, and the engaging structure has a first engaging portion provided on one of the container body and the lid body, and a second engaging portion provided on the other that engages with the first engaging portion.

[0006] According to this aspect, it is possible to provide a container that can perform a smooth sliding movement. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of a container according to a first embodiment. [Figure 2] FIG. 2 is a side view of the container according to the first embodiment. [Figure 3] FIG. 2 is a plan view of the container according to the first embodiment. [Figure 4] 1 is a perspective view of a container body and a lid according to a first embodiment, seen from above. FIG. [Figure 5] 1 is a perspective view of a container body and a lid according to a first embodiment, viewed from below. FIG. [Figure 6] 1 is a plan view of a container body and a lid of a container according to a first embodiment. [Figure 7] 6A and 6B are a cross-sectional view taken along the line CC' in FIG. 6 and a partially enlarged view thereof, and FIG. 6B is a cross-sectional view taken along the line DD' in FIG. 6 and a partially enlarged view thereof. [Figure 8] 3 is a cross-sectional view taken along line AA' in FIG. 2 and a partially enlarged view. [Figure 9] 4 is a cross-sectional view taken along line BB' in FIG. 3 and a partially enlarged view. [Figure 10] FIG. 10 is an enlarged view of a part of FIG. 9. [Figure 11] 1A and 1B are a perspective view and a side view, respectively, showing the state in which the closing of the container according to the first embodiment is started and the state in which the opening of the container is completed. [Figure 12] 1A and 1B are diagrams showing a state in which the container according to the first embodiment is being closed or opened. [Figure 13] 4A is a perspective view showing a state immediately before the container according to the first embodiment is completely closed or immediately after the container has started to be opened, and FIG. 4B is a cross-sectional view of a portion corresponding to line BB' in FIG. [Figure 14] FIG. 10 is a perspective view of a container according to a second embodiment, seen from above. [Figure 15] 10A and 10B are a side view and a partially enlarged view of a container according to a second embodiment. [Figure 16] 10A and 10B are a front view and a partially enlarged view of a container according to a second embodiment. [Figure 17] 10A and 10B are a bottom view and a partially enlarged view of a container according to a second embodiment. [Figure 18] 16 is a cross-sectional view taken along line EE' in FIG. 15 and a partially enlarged view. [Figure 19] 17 is a cross-sectional view taken along line FF' in FIG. 16 and a partially enlarged view. [Figure 20] 1A is a perspective view and a side view showing the state in which the closing of a container according to a second embodiment is started or the opening of the container is completed, and FIG. 1C is a perspective view showing the state in which the container is being closed or opened. [Figure 21] 10A and 10B are a perspective view and a bottom view, respectively, showing a state immediately before the container according to the second embodiment is completely closed or immediately after the container has started to be opened. [Figure 22] 19A to 19F show portions corresponding to the partially enlarged views of FIGS. 8 and 18, and are diagrams showing examples of variations of slide edges ((a) to (f)). DETAILED DESCRIPTION OF THE INVENTION

[0008] The container, the method of using the container, and the method of manufacturing the container according to the present disclosure will be described in detail below with reference to the accompanying drawings. In this specification, as shown in each drawing, the X-axis, the Y-axis, and the Z-axis are defined, with the +Z direction being referred to as the "upper side," the -Z direction being referred to as the "lower side," the +X direction being referred to as the "open side," the -X direction being referred to as the "closed side," the direction along the X-axis being referred to as the "sliding direction," and the direction along the Y-axis being referred to as the "width direction."

[0009] [First embodiment] [container] (Overall composition) First, a container according to a first embodiment of the present disclosure will be described. FIG. 1 is a perspective view of a container according to the first embodiment. FIG. 2 is a side view of a container according to the first embodiment. FIG. 3 is a plan view of a container according to the first embodiment. FIG. 4 is a perspective view of a container body and a lid according to the first embodiment, seen from above. FIG. 5 is a perspective view of a container body and a lid according to the first embodiment, seen from below. FIG. 6 is a plan view of a container body and a lid of a container according to the first embodiment. FIG. 7 shows a cross-sectional view and a partial enlarged view (a) taken along line CC' in FIG. 6, and a cross-sectional view and a partial enlarged view (b) taken along line D-D' in FIG. 6. The lower views of FIGS. 7(a) and 7(b) show enlarged views of the areas enclosed by the two-dot chain lines in the upper views, respectively. FIG. 8 is a cross-sectional view and a partial enlarged view taken along line A-A' in FIG. 2. The partial enlarged view (lower view) of FIG. 8 shows an enlarged view of the area enclosed by the two-dot chain line in the upper view. FIG. 9 is a cross-sectional view and a partial enlarged view taken along line B-B' in FIG. 3.

[0010] The partially enlarged view (upper left view) of FIG. 9 shows an enlarged view of the area surrounded by the dashed line in the lower view of FIG. 9. FIG. 10 shows an enlarged view of a portion of FIG. 9. Specifically, the area surrounded by the dashed line in the lower view of FIG. 9 is shown enlarged. FIG. 11 is a perspective view (a) and a side view (b) showing the state in which the closure of the container according to the first embodiment is started or the opening is completed. FIG. 12 is a view showing the state in the middle of the closure or opening of the container according to the first embodiment. FIG. 13 is a perspective view (a) and a cross-sectional view (b) of a portion corresponding to line B-B' in FIG. 3 showing the state immediately before the completion of closure or immediately after the start of opening of the container according to the first embodiment. The lower view of FIG. 13(b) shows an enlarged view of the area surrounded by the dashed line in the upper view.

[0011] As shown in FIG. 1 and other figures, the container 100 is a so-called separate-type container having a container body 1 and a lid body 2 that is separate from the container body 1. The lid body 2 is attached by moving (sliding) it relative to the container body 1 along a sliding direction from one end side (+X-axis direction) to the other end side (-X-axis direction). Specifically, by sliding the lid body 2 relative to the container body 1 in the "closed" direction in FIGS. 11 to 13, the lid body 2 can be attached as shown in FIGS. 1 to 3, bringing the container 100 into a closed state. By sliding the lid body 2 in the "open" direction in FIGS. 13 to 11 from the state in FIGS. 1 to 3, the lid body 2 can be detached from the container body 1, bringing the container 100 into an open state.

[0012] Conventionally, containers such as lunch boxes have been configured so that the container is opened by lifting the lid above the container body. In order to prevent unintentional opening and leakage of the contents, the end of the lid on the container body side is generally fitted (engaged) with the outer or inner periphery of the container body or secured with tape or the like. In recent years, in response to the increasing demand for food delivery and takeout, there has been a trend to improve the fitting strength (engagement strength) between the container body and the lid.

[0013] However, there are problems such as the inability of elderly or other weak users to open or close the container, and the recoil caused by opening the container can cause the contents to spill. Furthermore, when the lid is fitted around the entire circumference of the container body, a large force is required to open and close the container, and it is necessary to perform the operation of releasing the fitting in multiple places, which is troublesome.

[0014] On the other hand, the container 100 only requires the lid 2 to be slid horizontally relative to the container body 1 (sliding operation). The force required to slide the lid 2 relative to the container body 1 is smaller than the force required to move the lid upwardly away from the container body in conventional containers, so the container 100 can be opened and closed more easily with less force than conventional containers. Furthermore, since there is no need to release the engagement at multiple points, opening and closing can be performed smoothly. In other words, the usability can be improved. Furthermore, as described below, the container 100 can also be prevented from unintentionally opening, meeting the recent demand for improved airtightness. In other words, according to the present disclosure, a barrier-free and practical container 100 can be provided that is in line with the principles of universal design. In this specification, the term "fitting" refers to an element fitting (settling) into another element having a corresponding shape. These elements may be in contact with each other without any gaps, or there may be gaps between these elements at least in part of their surfaces or corners. To release this fitting, a force greater than that required for the sliding operation is required.

[0015] The materials constituting the container body 1 and the lid 2 are not particularly limited, but examples thereof include thermoplastic resin materials such as polypropylene (PP), high impact polystyrene (HIPS), biaxially oriented polystyrene (OPS), polyethylene terephthalate (PET), and polyethylene (PE); expanded resin materials such as expanded polystyrene (PSP); plant fiber materials such as paper, bamboo, and bagasse; and mixtures thereof. When using a resin material, it may contain an inorganic filler such as talc. It is particularly preferable to use a thermoplastic resin material as the constituent material. This allows the container body 1 and the lid 2 to be easily formed into the desired shape, be lightweight and thin for excellent transportability, and ensure sufficient mechanical strength.

[0016] (Container body) As shown in FIGS. 1 to 6 , the container body 1 has an open side edge 11, a closed side edge 12, a pair of opposing guide edges 13 extending in the sliding direction, and a container opening 10 surrounded by these four edges. Side wall portions 15 are connected to the lower portions of the four edges, and the side wall portions 15 are connected to a bottom portion 16. In this embodiment, the container body 1 is described as having a rectangular shape in a plan view, but the shape of the container body 1 in a plan view is not particularly limited as long as it has a pair of opposing guide edges 13. The shape of the container body 1 in a plan view may be a polygonal shape such as a square, pentagon, hexagon, or octagon, or may have a shape in which at least some of the sides are curved.

[0017] The bottom 16 of the container body 1 has rectangular annular leg portions 161 that protrude downward, and a bottom surface portion 162 that is arranged inside the leg portions 161. The leg portions 161 only need to be provided along the sides of the bottom surface portion 162, and may be provided intermittently (for example, at the four corners) rather than continuously. By having the bottom 16 of the container body 1 have the leg portions 161 and the bottom surface portion 162, stress acting on the bottom portion 16 can be dispersed, thereby improving the mechanical strength of the container body 1.

[0018] The container body 1 is provided with a reinforcing wall 134 that protrudes downward along its outer periphery. In other words, as shown in FIGS. 7 to 9, the reinforcing wall 134 is provided in a manner that folds back the entire periphery of the container body 1. This improves the mechanical strength of the upper portion of the container body 1. The height H134 of the reinforcing wall 134 (see FIG. 7(a)) is preferably set depending on the material used, the thickness of the container 100, and the like. The lower end of the reinforcing wall 134 is connected to the flange portion 14. In this embodiment, the end face of the flange portion 14 is a cut surface that is formed when multiple container bodies 1 formed together are individually separated. Of course, the end face of the flange portion 14 does not have to be a cut surface, or a cut surface may be provided in a different location. Furthermore, the container body 1 does not have to have a cut surface. A reinforcing wall 134 is connected to the three sides of the container body 1 excluding the open side edge 11 via a connecting portion 133, and an erecting portion 132 erected on the lid body 2 side of the connecting portion 133 is provided along the above three sides.

[0019] 11 to 13, the open side edge 11 is the edge along which the lid body 2 passes when opening or closing the container 100. Here, since the open side edge 11 is not provided with an obstacle such as the standing portion 132, the lid body 2 can pass over the open side edge 11 smoothly. The open side edge 11 has an open-side guide surface (upper surface) 111. The open-side guide surface 111 is the location on which the lid body 2 is first placed when attaching the lid body 2 to the container body 1 (closing the container 100) (see FIG. 11). Therefore, in order to smoothly start the sliding operation for closing the container 100 (hereinafter also referred to as the "closing operation"), it is preferable that the open-side guide surface 111 have a certain degree of width (length along the sliding direction).

[0020] Specifically, the width W111 (see FIGS. 6 and 9) of the open-side guide surface 111 relative to the length L1 (see FIG. 6) of the container body 1 is preferably about 0.01 to 0.2, more preferably about 0.02 to 0.15. This allows the lid body 2 to be stably placed on the open-side guide surface 111, allowing the closing operation to be started smoothly.

[0021] The open-side guide surface 111 can also function as a portion on which fingers are placed when gripping the container body 1. For example, the width W111 of the open-side guide surface 111 can be set according to the length L10 of the container opening 10 (see FIG. 6). The open side guide surface 111 does not need to be provided continuously along the open side edge 11, but may be provided intermittently, for example, or there may be points where the width W111 of the open side guide surface 111 varies in the direction along the open side edge 11.

[0022] Guide surfaces (guide portions) 131 provided on a pair of guide edges 13 are continuous with the open-side guide surface 111. That is, the guide portions of the container body 1 have flat guide surfaces 131. The guide surfaces 131, together with erected portions 132 provided to erect closer to the lid body side than the guide surfaces 131 (guide portions), have the function of guiding the sliding movement of the lid body 2. In addition to guiding the sliding movement, guide edge 13 also functions as a portion on which fingers can be placed when container body 1 is held widthwise with one or both hands. For example, the width W13 of guide edge 13 (see FIG. 6) can be set in consideration of the capacity of container body 1 (e.g., the width W10 of container opening 10).

[0023] The guide surface 131 preferably has a certain width so that the lid 2 can be placed thereon and slid. Specifically, the ratio of the width W131 of the guide surface 131 to the width W1 of the container body 1 (see FIGS. 6 and 8) is preferably about 0.02 or more and 0.2 or less. The erected portion 132 is erected on the lid body 2 side of the guide surface 131 and has the function of guiding the lid body 2 so that it does not come off in a direction intersecting the sliding direction. The angle θ132 (see FIG. 7(a)) formed between the height direction of the erected portion 132 and the guide surface 131 is not particularly limited as long as the lid body 2 can be guided from below and from the side.

[0024] As shown in FIGS. 11 to 13, the upright portions 132 guide the lid 2 by engaging the lid 2 therebetween. The end of the upright portion 132 on the open side edge 11 side is the point where the closing operation starts, and therefore is prone to receiving force in the width direction (Y direction). Furthermore, because the opening has an angular U-shape, the strength in the width direction is prone to be lower than that on the closed side edge 12 side. For this reason, the upright portions 132 of the pair of guide edges 13 are prone to deform in directions that move them apart on the open side edge 11 side. Therefore, it is preferable that the upright portions 132 are designed in advance to move closer to each other on the closed side edge 12 side. In other words, when the lid body 2 is configured to be attached to the container body 1 from the open side edge 11 side (one end side) in the sliding direction, it is preferable that the distance between the standing portions 132 along the pair of guide surfaces 131 increases as they move from the open side edge 11 side (one end side) in the sliding direction toward the closed side edge 12 side (other end side).

[0025] With this configuration, even if the width WO between the upright portions 132 on the open side 11 side increases due to deformation, the container body 1 and the lid 2 can be positioned and slid without rattle. Furthermore, when starting the closing operation, it can also function as a trigger to fit the lid 2 into the container body 1, improving the usability. Specifically, it is preferable that the width WC (see Figure 6) between the upright portions 132 on the closed side 12 side is approximately 0.8 or more and 0.999 or less compared to the width WO (see Figure 6) between the upright portions 132 on the open side 11 side. In addition, instead of or in addition to the configuration in which the distance between the standing portions 132 gradually (continuously) changes, a protrusion may be provided at the end of the standing portion 132 on the open side edge 11 side so that the width WO between the standing portions 132 becomes smaller.

[0026] 2 and 11, the height of the end of the standing portion 132 on the open side edge 11 side gradually decreases toward the open side edge 11. That is, the upper corner of the standing portion 132 on the open side edge 11 side has a rounded shape (curved portion R132). This makes it easier to intuitively insert the lid body 2 between the guide edges 13 when attaching the lid body 2 to the container body 1.

[0027] 7(a), the standing portion 132 has, from the guide surface 131 side, a first inner surface 132a1, an auxiliary guide surface 132b, a second inner surface 132a2, a first tapered surface 132c, a tapered top surface 132d, a second tapered surface 132e, a top surface 132f, and an outer surface 132g. With this configuration, as shown in FIG. 8, the lid 2 can be guided in the sliding direction by four surfaces including not only the guide surface 131 and the first inner surface 132a1 but also the auxiliary guide surface 132b and the second inner surface 132a2. In other words, the sliding movement of the lid 2 relative to the container body 1 can be performed smoothly and stably.

[0028] Adjacent to the upper side of the second inner surface 132a2 is a first tapered surface 132c that is provided to extend toward the inside of the container body 1. In other words, in the container 100, when the lid 2 is attached to the container body 1, the erected portions 132 of the pair of guide edges 13 have first tapered surfaces (inclined surfaces) 132c that are inclined so as to approach each other toward the lid 2. The angle θ132c formed between the second inner surface 132a2 and the first tapered surface 132c is not particularly limited, but is preferably approximately 20° or more and 80° or less, more preferably approximately 30° or more and 70° or less, and particularly preferably approximately 45°. The provision of such first tapered surface 132c can more suitably prevent or suppress leakage of contents such as liquid from inside container 100. In addition, lid body 2 is less likely to derail upward relative to container body 1, allowing for smooth sliding movement.

[0029] It is preferable that the tapered top surface 132d provided above the first tapered surface 132c is located more inward of the container body 1 than the end of the lid body 2. This makes it possible to more effectively prevent or suppress leakage of the contents and upward derailment of the lid body 2 relative to the container body 1. The portion connecting the first tapered surface 132c and the second tapered surface 132e does not necessarily have to be a flat surface like the tapered top surface 132d, but may be a curved convex surface or a protrusion.

[0030] A reinforcing wall 134 is provided below the outer surface 132g of the container body 1 via a connecting portion 133. This makes it easier to distribute stress compared to when the standing portion 132 and the reinforcing wall 134 are provided directly and continuously without the connecting portion 133, thereby improving the strength of the standing portion 132 and, ultimately, the entire container body 1.

[0031] Note that the guide surface 131 and the standing portion 132 need not be uniformly (continuously) provided along the guide edge 13 as long as they can guide the lid body 2. For example, at least one of the guide surface 131 and the standing portion 132 may be provided intermittently, or there may be portions along the guide edge 13 where the width W131 of the guide surface 131 or the height H132 of the standing portion 132 varies. In other words, the guide surface 131 (container body 1) only needs to have the guide surface 131 (guide portion) and the standing portion 132 on at least a portion thereof. Furthermore, regardless of whether the standing portion 132 is provided intermittently or not, the first tapered surface 132c, the tapered top surface 132d, and the second tapered surface 132e of the standing portion 132 may also be provided intermittently. For example, in at least a part of the standing portion 132, the second inner surface 132a2 may be directly connected to the top surface 132f.

[0032] 10, the closing side edge 12 provided between the pair of guide edges 13 on the closing side has a climbing protrusion 122, a fitting recess 121, and an erected portion 132. The erected portion 132 provided on the closing side edge 12 prevents or suppresses leakage of the contents from inside the container 100, and also prevents the lid 2, which has completed the closing operation, from moving beyond the closing side edge 12 toward the closing side and falling off. In other words, the erected portion 132 forms a separation prevention mechanism on the closing side edge 12. Each component of the closed side 12 constitutes a mating structure configured to lock (prohibit) the sliding movement. The mating structure will be described in detail later.

[0033] (lid) 1 to 6, the lid 2 of the container 100 has an open side edge 21, a closed side edge 22, a pair of opposing sliding edges 23 extending in the sliding direction, and a gap forming portion 25, a grip portion 26, and a top surface portion 27 surrounded by these four edges. Note that in this embodiment, the lid 2 has a rectangular shape in a planar view, but the shape of the lid 2 in a planar view is not particularly limited as long as it has a pair of opposing sliding edges 23 and a shape in a planar view that corresponds to the container body 1. The shape of the lid 2 in a planar view may be a polygonal shape such as a square, pentagonal, hexagonal, or octagonal, or may have a shape that includes curves on at least some of the sides.

[0034] The lid body 2 is preferably designed to protrude above the container body 1. This has the effect of making it easier to apply force when moving the lid body 2 relative to the container body 1 (performing a sliding movement). The top surface 27 of the lid 2 does not have to be flat as long as it has the function of covering the container opening 10 of the container body 1. Depending on the desired aesthetics and function, it may have a three-dimensional shape such as a corrugated, convex, or concave shape.

[0035] The gripping portion 26 surrounding the periphery of the top surface 27 has the function of dispersing stress acting on the top surface 27, similar to the leg portions 161 of the container body 1. This prevents or minimizes the lid 2 from collapsing and damaging the contents even when another container 100 is stacked on top of the container 100 or when another object is placed on top of the container 100. Furthermore, for example, the gripping portion 26 may be designed so that the width W27 and length L27 (see FIG. 6) of the top surface 27 are slightly larger than the width W16 and length L16 (see FIG. 6) of the bottom 16 of the container body 1. In this case, the upper and lower containers 100 can be stacked stably.

[0036] The gripping portion 26 can also function as a place to hook a finger when performing the sliding operation. This eliminates the need to grip the edge of the lid body 2 when performing the sliding operation, preventing fingers from coming into contact with the contents of the container 100 and allowing the container 100 to be used more hygienically. If the container 100 can be used more hygienically, the contents, if food, can be stored for a longer period of time, thereby effectively preventing or suppressing food waste. Moreover, because it is only necessary to apply force to the gripping portion 26 from diagonally above, opening and closing operations can be easily performed with little force. Furthermore, since there is no need to provide a separate knob on the lid body 2, this contributes to saving space in the container 100 and reducing the amount of material used. It goes without saying that the sliding operation by gripping or applying force to the gripping portion 26 requires less force to be applied to the fingertips than opening and closing by pulling the knob. Of course, the lid body 2 may be provided with a knob in addition to the grip portion 26 or instead of the grip portion 26.

[0037] Specifically, by ensuring an appropriate height H26 (see Figure 8) from the top surface 27 to the gripping portion 26 relative to the height H100 of the entire container 100, it becomes easier to hook a finger when sliding (i.e., it becomes easier to open and close the container 100 with less force), and the overall height of the container 100 can be reduced, thereby making it more compact. 8, curved surfaces R261 and R262 are provided at the boundary between the first gripping wall 261 and the second gripping wall 263 of the gripping portion 26 and the gripping top portion 262 provided therebetween. This makes it possible to distribute the stress applied to the gripping portion 26 when the lid 2 is gripped, and also makes it comfortable to the fingers, improving the usability.

[0038] As shown in FIGS. 8 to 10 , gap-forming portion 25 provided on the outer periphery of gripping portion 26 has an inclined portion 251 and a flat portion 252. Gap-forming portion 25 is located near container opening 10 of container body 1, and forms gap G between container body 1 and lid 2 at a position where container body 1 and lid 2 face each other. This allows the contents of container body 1 to be held in gap G even if they adhere to lid 2 or climb up onto open side edge 11, closed side edge 12, guide edge 13, etc. of container body 1 due to an impact such as vibration. In other words, gap G serves as a buffer region that prevents or inhibits the contents from immediately spreading out of container body 1 due to capillary action occurring between container body 1 and lid 2.

[0039] The height H25 (see FIG. 8) and width W25 (see FIG. 7) of the gap forming portion 25 are preferably set in accordance with the capacity of the container body 1. This allows a gap G with a sufficient volume to be formed. As shown in FIG. 6 and other figures, the outer periphery of the lid body 2 is surrounded by upwardly protruding walls (open side wall 212, slide wall 232, stop wall 223). The upper end of each wall is connected to the flange portion 24. In this embodiment, the end surface of the flange portion 24 is a cut surface that is formed when multiple lid bodies 2 formed together are individually separated. Of course, the end surface of the flange portion 24 does not have to be a cut surface, or the cut surface may be provided in a different location. Furthermore, the lid body 2 does not have to have a cut surface.

[0040] 9 and other figures, the open side edge 21 is provided with an open-side slide surface 211 that faces the open-side guide surface 111 of the container body 1 in the closed state, and an open side wall 212 that stands above the open-side slide surface 211 (on the opposite side from the container body 1). The open side wall 212 can function as a portion to hook the fingers onto during the sliding operation, instead of or together with the grip portion 26.

[0041] As shown in FIG. 3, in the closed state, the open-side end (brim portion 24) of the lid 2 is located further inside the container body 1 than the open-side end of the open-side guide surface 111 of the container body 1. In other words, in the closed state, a margin where the lid 2 is not present is generated above the open-side guide surface 111. This makes it possible to prevent or suppress impurities from entering between the container body 1 and the lid 2. Specifically, it is preferable to set the length LM111 of the margin of the open-side guide surface 111 in accordance with the length L100 of the entire container 100.

[0042] The open-side sliding surface 211 is continuous with the sliding surface 231 of the sliding edge 23. The sliding surface (sliding portion) 231 of each sliding edge 23 is guided by the opposing guide surface (guide portion) 131 of the container body 1. That is, the sliding portion of the lid 2 has a flat sliding surface 231 that slides along the guide surface 131. As the guide surface 131 and the sliding surface 231 face each other in this way, the lid 2 is less likely to swing in a direction intersecting the sliding direction during the sliding operation, contributing to a smooth sliding operation. Note that the guide surface 131 and the sliding surface 231 do not need to be horizontal as shown in the figure, but may be arranged approximately parallel to each other. To achieve such a smooth sliding operation, it is preferable that the width W231 of the slide surface 231 (see FIG. 7(b)) is sufficiently long relative to the width W131 of the guide surface 131.

[0043] 8, the slide surface 231 is provided adjacent to the inclined portion 251 of the gap forming portion 25 described above. In order for the gap G to function as a buffer region and for the slide surface 231 to be smoothly guided by the guide surface 131, it is preferable that both the gap G and the slide surface 231 are located above the guide surface 131. This allows the functions of both the gap G and the slide surface 231 to be suitably fulfilled.

[0044] As shown in FIG. 7(b), the angle θ261 between the first gripping wall 261 of the gripping portion 26 and the flat portion 252 of the gap forming portion 25, the angle θ251 between the inclined portion 251 and the sliding surface 231, and the angle θ232 between the sliding surface 231 and the sliding wall 232 adjacent to the sliding surface 231 are not particularly limited, but are preferably obtuse angles. This allows the space between the first gripping wall 261 and the upright portion 132 of the container body 1 to widen upward, making it easier to insert a finger into this space and grip the first gripping wall 261. This allows various parts of the lid 2 to be gripped depending on the situation, further improving the operability of the container 100. Furthermore, since different people find different parts of the lid 2 easier to grip, this also conforms to the concept of universal design. In this case, it is advisable that the angle θ132a1 of the container body 1 is also an obtuse angle.

[0045] The slide wall 232 adjacent to the outside of the slide surface 231 faces the first inner surface 132a1 of the container body 1. Since the angle θ232 formed between the slide surface 231 and the slide wall 232 is an obtuse angle, damage to the guide surface 131 and the first inner surface 132a1 of the container body 1 can be reduced even if the lid 2 moves in the sliding direction. A curved portion may be provided at the boundary between the slide surface 231 and the slide wall 232.

[0046] An upper, continuous portion of the sliding wall 232 has a flange 24 . Furthermore, it is preferable that flange 24 be located outside extension line EL of tapered top surface 132d, which is the most inwardly protruding portion of upright portion 132 of container body 1. This makes it possible for upright portion 132 to prevent further movement of lid 2 even if it is lifted vertically upward relative to container body 1.

[0047] Each portion of the slide edge 23 is located between the guide surface 131 and the upright portion 132 of the container body 1. That is, when the lid 2 is attached to the container body 1 (closed state), the upright portion 132 of the container body 1 is located outside the slide edge 23 of the lid 2. This configuration in which the lid 2 fits inside the container body 1 (so-called internal fitting) can prevent or suppress the contents of the container body 1 adhering to the lid 2 or water droplets generated from the contents from leaking or dripping to the outside of the container 100 (for example, the side wall portion 15 of the container body 1). Furthermore, even if liquid leaks onto the guide surface 131 from inside the container body 1, the upright portion 132 can prevent the liquid from leaking to the side wall portion 15, etc. That is, the container 100 can be used hygienically.

[0048] 10, the closing side edge 22 provided between the pair of sliding edges 23 on the closing side has a climbing recess 222, a fitting protrusion 221, and a stop wall 223. The climbing recess 222 also functions as a gap forming portion 25 that forms a gap G on the closing side edge 22. In addition, in the closed state, the mating convex portion 221 faces the mating concave portion 121 of the container body 1. In this way, the container body 1 and the lid body 2 face each other at their surfaces around the entire circumference of the container 100, so that even if liquid or the like in the container body 1 enters between the container body 1 and the lid body 2 due to capillary action, the liquid can be contained between the opposing surfaces and prevented or suppressed from leaking to the outside of the container 100. The intrusion of foreign matter into the container 100 from outside can also be prevented or suppressed in a similar manner.

[0049] Furthermore, as shown in FIG. 11, the fitting protrusion 221 is the portion that is first placed on the container body 1 when the lid 2 is attached to the container body 1 (when the container 100 is closed). Therefore, it is preferable that the fitting protrusion 221 has a certain width for the closing operation. Specifically, it is preferable that the ratio of the width W221 of the fitting protrusion 221 to the length L2 (see FIG. 6) of the lid 2 is approximately 0.01 or more and 0.15 or less. This allows the fitting protrusion 221 to be stably placed on the open-side guide surface 111 of the container body 1, allowing the closing operation to be started smoothly. Furthermore, each component of the closed side 22 constitutes a fitting structure configured to lock (prohibit) the sliding movement. The fitting structure will be described in detail in the next section.

[0050] (Interlocking structure) The fitting structure will be described in detail with reference to Figure 10. As described above, the components of the closed side edge 12 of the container body 1 and the closed side edge 22 of the lid 2 constitute a fitting structure that locks (prohibits) the sliding movement, i.e., fixes the lid 2 to the container body 1. The fitting structure has a first fitting portion provided on one of the container body 1 and the lid body 2, and a second fitting portion provided on the other that fits with the first fitting portion. In this embodiment, a case will be described in which the overhanging convex portion 122 and fitting recess 121 of the container body 1 form the first fitting portion, and the overhanging recess 222 and fitting protrusion 221 of the lid body 2 form the second fitting portion. Of course, the lid body 2 may have the first fitting portion, and the container body 1 may have the second fitting portion; in other words, the container body 1 may have the overhanging recess 222 and fitting protrusion 221, and the lid body 2 may have the overhanging convex portion 122 and fitting recess 121.

[0051] The fitting recess 121 of the container body 1 has a shape recessed relative to the lid body 2 , and the overcoming protrusion 122 has a shape protruding toward the lid body 2 . The fitting protrusion 221 of the lid 2 has a shape that protrudes relative to the container body 1, and the overcoming recess 222 has a shape that is recessed relative to the container body 1. In addition, when the fitting convex portion 221 is fitted into the fitting recess 121 (hereinafter also referred to as a fitted state), the overcoming convex portion 122 is also configured to fit into the overcoming recess 222. In this embodiment, a case where the container 100 is in a closed state in the fitted state will be described, but is not limited to this. In this way, by fitting the overhanging protrusion 122 into the overhanging recess in addition to fitting the fitting recess 121 into the fitting protrusion 221, the reliability of locking (prohibiting) when the container 100 is in the closed state is improved.

[0052] In the container body 1, the overcoming protrusion 122 is adjacent to the fitting recess 121 on the open side (one end side in the sliding direction). The fitting recess 121 has a second inclined surface 122b, a fitting recessed surface 121a, and a first inner surface 132a1, and the overcoming protrusion 122 has a first inclined surface 122a, a second inclined surface 122b, and a top overcoming surface 122c. In other words, the fitting recess 121 and the overcoming protrusion 122 share the second inclined surface 122b. In the cover 2, the overcoming recess 222 is adjacent to the fitting protrusion 221 on the open side (one end side in the sliding direction). The fitting protrusion 221 has a overcoming recessed wall 222b, a fitting protrusion surface 221a, and a stop wall 223, and the overcoming recess 222 has a overcoming recessed surface 222a and a overcoming recessed wall 222b. In other words, the fitting protrusion 221 and the overcoming recess 222 share the overcoming recessed wall 222b.

[0053] In this way, the fitting recess 121 and the overriding protrusion 122 in the first fitting portion of the container body 1 (one side) and the fitting protrusion 221 and the overriding recess 222 in the second fitting portion of the lid body 2 (the other side) share a part and form a relative unevenness. Therefore, each of the first fitting portion and the second fitting portion can be made smaller in the height direction. Because the fitting structure is made smaller in the height direction, the capacity can be increased without increasing the external size of the container 100.

[0054] The depth H122 of the fitting recess 121 (height of the climbing-over protrusion 122) relative to the height H1 of the container body 1 and the height H222 of the fitting protrusion 221 relative to the height H2 of the lid 2 can be set appropriately. This allows the fitting force between the fitting recess 121 and the fitting protrusion 221 to be set to an appropriate value. This makes it possible to prevent or suppress unintended sliding of the lid 2 relative to the container body 1, while not requiring excessive force to release the fitting. In other words, it is possible to prevent unintended opening and achieve barrier-free access at the same time.

[0055] The height H222 of the fitting convex portion 221 of the lid body 2 is preferably greater than the depth H122 (height of the climbing-over convex portion 122) of the fitting recess 121 of the container body 1. This makes it easier for the fitting convex portion 221 to fit into the fitting recess 121. Specifically, the ratio of the height H222 of the fitting convex portion 221 to the depth H122 of the fitting recess 121 (height of the climbing-over convex portion 122) can be set appropriately.

[0056] The overhanging protrusion 122 constituting the first fitting portion of the container body 1 has a first inclined surface 122a located on the open side (one end side in the sliding direction) and a second inclined surface 122b located on the closed side (the other end side in the sliding direction) and having a larger inclination angle than the first inclined surface 122a. This configuration enables smooth sliding with little force during the process of achieving the fitted state (transition from the state of FIG. 13 to the state of FIG. 10), while preventing or suppressing the process of unintentionally releasing the fitted state (transition from the state of FIG. 10 to the state of FIG. 13). In other words, the reliability of the lock (prohibition) in the fitted state is improved. Furthermore, a sense of resistance is generated in the process in which the fitting convex portion 221 of the second fitting portion of the lid body 2 moves over the first inclined surface 122a of the first fitting portion of the container body 1, and an impact (a so-called click feeling) is easily felt when the fitting convex portion 221 slides down the second inclined surface 122b and fits into the fitting recess 121. This gives the user the feeling that the fitting state has been achieved.

[0057] Specifically, the inclination angle θ122a of the first inclined surface 122a is preferably approximately 5° to 40°, more preferably approximately 10° to 30°, even more preferably approximately 15° to 25°, and particularly preferably approximately 20°. The inclination angle θ122b of the second inclined surface 122b is preferably approximately 50° to 90°, more preferably approximately 65° to 87°, even more preferably approximately 75° to 85°, and particularly preferably approximately 80°. For example, when the container 100 is a food container, the height H122 of the overhanging protrusion 122 is preferably approximately 0.3 mm or more, more preferably approximately 0.5 mm to 5 mm, even more preferably approximately 1 mm to 3 mm, and particularly preferably approximately 1.5 mm.

[0058] Furthermore, it is preferable that the ratio of the inclination angle θ122a of the first inclined surface 122a to the inclination angle θ122b of the second inclined surface 122b be approximately equal to or greater than 0.1 and equal to or less than 0.5. By satisfying this range, it is possible to achieve a good balance between usability and fit reliability. Between the first inclined surface 122a and the second inclined surface 122b, a climbing-over apex 122c is provided. This reduces the pressure applied to the mating convex surface 221a when climbing over the climbing-over convex portion 122, making it less likely that the mating convex surface 221a will be damaged. Note that the first inclined surface 122a and the second inclined surface 122b may be directly connected without providing the climbing-over apex 122c. Even in this case, the mating structure can still function satisfactorily.

[0059] 12, the force required when the lid 2 moves to the open side or the closed side is defined as the slide resistance force of the guide edge 13, the force required when the end of the fitting convex surface 221a on the stopping wall 223 side moves to the closed side on the first inclined surface 122a is defined as the initial overcoming resistance force, the force required when the fitting convex surface 221a moves to the closed side on the overcoming top surface 122c is defined as the final overcoming resistance force, and the force required when the overcoming recessed wall 222b moves to the open side on the second inclined surface 122b is defined as the fitting force. In this case, it is preferable that the following relationships hold: Sliding resistance force < Initial overcoming resistance force < Late overcoming resistance force < Interlocking force

[0060] By satisfying this relationship, the resistance force can be gradually increased when the lid 2 moves toward the closing side on the overcoming protrusion 122. After the lid 2 has finished moving on the overcoming protrusion 122, the overcoming recessed wall 222b slides down the second inclined surface 122b, and the fitting protrusion 221 fits into the fitting recess 121. At this time, a clicking sensation can be generated, allowing the user to realize that the container 100 is in the fitted state. In addition, the sliding movement of the lid body 2 is performed via a force gauge attached to the side on which the lid body 2 moves (open side edge 21 or closed side edge 22), and the load when the lid body 2 moves can be obtained as the above-mentioned resistance force and fitting force [N].

[0061] In the fitted state, the auxiliary guide surface 132b of the container body 1 and the flange 24 of the lid 2 face each other on the closed side of the fitting structure. This further improves the airtightness of the container 100. In addition, the first tapered surface 132c, the tapered top surface 132d, and the second tapered surface 132e of the standing portion 132 protrude above the flange 24. This prevents the container 100 from opening even if the lid 2 is unintentionally lifted upward relative to the container body 1. In other words, it can be said that the flange 24 and the standing portion 132 also constitute part of the fitting structure. In addition, the lid body 2 may have a shape that follows the first tapered surface 132c, tapered top surface 132d, and second tapered surface 132e of the container body 1, in which case the fitting force and sealing performance between the container body 1 and the lid body 2 can be improved.

[0062] It is preferable that the height HM24 (see FIG. 10) from the upper end of the flange 24 of the lid 2 to the lower end of the first tapered surface 132c of the erected portion 132 of the container body 1 is greater than the height H122 of the climbing protrusion 122. This prevents or reduces interference between the flange 24 and the first tapered surface 132c when the lid 2 climbs over the climbing protrusion 122. Therefore, the lid 2 is less likely to be crushed in the vertical direction when climbing over the climbing protrusion 122. Furthermore, it is possible to prevent or reduce resistance and discomfort caused by friction between the flange 24 and the first tapered surface 132c.

[0063] It is preferable that the flange 24 does not come into contact with the first inclined surface 122a when the lid 2 climbs over the climbing protrusion 122. This makes it possible to prevent or suppress discomfort caused by friction between the relatively sharp end face of the flange 24 and the first inclined surface 122a. It is also possible to reduce damage to the container body 1 and the lid 2. For this reason, it is preferable that the height H24 of the flange 24 is greater than the height H122 of the climbing protrusion 122. This setting makes it easy to prevent or suppress the end of the flange 24 from coming into contact with the first inclined surface 122a.

[0064] Such a fitting structure is provided on the closed side edge 12 of the container body 1 and the closed side edge 22 (the other end in the sliding direction) of the lid body 2. By providing a fitting structure including projections and recesses on the closed side of the container 100 rather than on the open side, the lid body 2 can be easily attached and detached to and from the container body 1. However, the fitting structures only need to be provided at positions facing each other between the container body 1 and the lid 2 in the fitted state. For example, the fitting structures may be provided intermittently along the closed side edges 12 and 22, or may be provided only in the center or both ends of the closed side edges 12 and 22. Furthermore, the fitting structures may be provided on the guide edges 13 and the sliding edges 23 or the open side edges 11 and 21 instead of or in addition to the closed side edges 12 and 22. However, as described in this embodiment, it is more preferable that the fitting structures be provided along the entire length of the closed side edges 12 and 22. In this case, smooth sliding and reliable fitting are achieved, and damage to the sliding surface 231 is minimized.

[0065] [How to use] (Mating method) Next, we will explain how to use the container 100. First, we will explain how to bring the container 100 into the fitted state. This method includes a step of sliding the slide edge 23 of the lid 2 along the guide edge 13 of the container body 1, and a step of fitting the first fitting portion and the second fitting portion together. First, as shown in Figure 11, the closed side edge 22 of the lid 2 is aligned with the open side edge 11 of the container body 1. In particular, by placing the fitting protrusion 221 of the closed side edge 22 on the open-side guide surface 111 of the open side edge 11, the lid 2 can be stabilized relative to the container body 1. This allows the next step to be started smoothly.

[0066] Next, the slide edge 23 of the lid 2 is slid along the guide edge 13 of the container body 1. Specifically, first, the lid 2 is inserted into the container body 1 from the open side edge 11 side so that the end of the flange 14 on the closing side of the sliding edge 23 fits under the first tapered surface 132c of the erected portion 132 of the guide edge 13. At this time, the height of the erected portion 132 gradually decreases at its end toward the open side edge 11 side, creating a sensation that the lid 2 is being guided between the guide edges 13. In addition, because the width WO between the erected portions 132 is designed to be smaller on the open side edge 11 side, a slight resistance can be generated when the sliding edge 23 (flange 14) is inserted between the erected portions 132, allowing the user to actually feel the sensation of insertion. Next, by pushing the cover 2 toward the closed side, the slide edge 23 slides while being guided by the guide surface 131 and the erected portion 132. This allows the cover 2 to go through the state shown in FIG. 12 and then to the state shown in FIG. 13.

[0067] Next, the lid 2 is further pushed toward the closed side, causing it to climb over the overhanging protrusion 122 of the container body 1, and the first and second mating portions are mated. This places the mating structure in the mated state shown in FIG. 10 and other figures. When the lid 2 climbs over the overhanging protrusion 122, resistance increases slightly compared to when it passes over the guide edge 13. This allows the user to sense that the mated state will soon be reached. Thereafter, the mating protrusion 221 slides down the second inclined surface 122b of the overhanging protrusion 122, and the mating protrusion 221 (second mating portion) fits into the mating recess 121 (first mating portion). This is conveyed to the user as a clicking sensation, allowing the user to realize that the mating structure has entered the mated state.

[0068] (How to open) Next, a method for opening the container 100 will be described. This method includes a step of releasing the engagement between the first engaging portion and the second engaging portion, and a step of sliding the slide edge 23 of the lid 2 along the guide edge 13 of the container body 1.

[0069] First, in the container 100 in the mated state shown in FIGS. 1, 10, etc., the first mating portion and the second mating portion are disengaged. That is, a force is applied to the lid 2 in the opening direction so that the overhanging recessed wall 222b overcomes the second inclined surface 122b of the overhanging protrusion 122. The method of gripping the container 100 is not particularly limited. However, a convenient way to apply force is to grip the side wall 15 of the container body 1 with one hand, place the index finger of the other hand on the second gripping wall 263 on the open side edge 21 side, and press the side wall 15 on the open side edge 11 side with the thumb of the other hand. Alternatively, the side wall 15 of the container body 1 may be gripped with one hand, and press the first gripping wall 261 on the closed side edge 22 side with the thumb of the other hand. In particular, by providing the gripping portion 26 as described above, even users with weak strength, such as elderly people, can easily disengage the mated state. Furthermore, tapered top surface 132d of upright portion 132 of container body 1 protrudes inward beyond flange 14 of lid 2, which makes it easy to preferably prevent lid 2 from coming off upward from container body 1 in reaction to releasing the engagement. For example, if the contents of container body 1 are a moisture-containing item such as food, water droplets may adhere to the inside of lid 2, but by preventing lid 2 from coming off container body 1, it is possible to prevent the water droplets from scattering around.

[0070] Next, as shown in Figures 13, 12, and 11, the sliding edge 23 of the lid 2 is slid along the guide edge 13 of the container body 1. The guide edge 13 of the container body 1 guides the sliding surface 231 of the lid 2 with both the guide surface 131 and the standing portion 132, thereby enabling the sliding operation to be performed while suitably preventing the lid 2 from coming off the container body 1. In particular, the standing portion 132 of the container body 1 has the first tapered surface 132c, the tapered top surface 132d, and the second tapered surface 132e, which makes it easy to prevent the closing side edge 22 of the lid 2 from lifting up. Subsequently, the container 100 can be brought into an open state by removing the lid 2 from the container body 1 through the state shown in FIG.

[0071] Although the method for gripping the container 100 in each step is not particularly limited, it is preferable to grip the side wall 15, the bottom 16, the reinforcing wall 134, or the outer surface 132g when gripping the container body 1, and to grip the grip portion 26 when gripping the lid 2. In this case, it is easy to prevent or suppress contamination of the contents of the container 100 by touching them.

[0072] [Manufacturing method] Next, a method for manufacturing the container 100 will be described. Here, a case where the material constituting the container 100 is a resin material will be described. The method for manufacturing the container 100 includes a step of preparing a resin sheet, and a step of adsorbing the heated resin sheet onto a mold and obtaining the container body 1 and the lid body 2 by vacuum forming.

[0073] First, a resin sheet is prepared as the base material of the container 100. The resin sheet may be prepared by purchasing a commercially available product, or may be prepared by making one yourself. In the latter case, the method for making the resin sheet is not particularly limited, but it can be made, for example, by melt-kneading a resin material and extruding it from an extruder. Next, the resin sheet is fed into a vacuum forming machine and heated to soften it. The heating temperature and heating time can be set appropriately depending on the material, but for example, it is heated at approximately 90°C to 500°C for approximately 3 to 60 seconds. The heated and softened resin sheet (heated resin sheet) is brought close to a mold, and the pressure between the resin sheet and the mold is reduced, causing the resin sheet to adhere to the mold. Then, the solidified resin sheet (i.e., the assembly of container body 1 or lid body 2) is separated from the mold.

[0074] In this case, it is preferable that the inclination angle θ132c (see FIG. 8) of first tapered surface 132c falls within the range described above for container body 1. Furthermore, the ratio of the length P132cde (see FIG. 7(a)) by which tapered top surface 132d protrudes from second inner surface 132a2 to the sum H132cde (see FIG. 7(a)) of the heights of first tapered surface 132c, tapered top surface 132d, and second tapered surface 132e is preferably equal to or greater than 0.1 and equal to or less than 2, and more preferably equal to or greater than 0.3 and equal to or less than 1. For example, when container 100 is a container for food, protruding length P132cde can be set to approximately equal to or greater than 0.2 mm and equal to or less than 1 mm. By designing the first tapered surface 132c, the tapered top surface 132d, and the second tapered surface 132e in this manner, the resin sheet can be smoothly separated from the mold, and the performance of the container 100 described above can be fully imparted.

[0075] Furthermore, when the solidified resin sheet is separated from the mold, the distance between the first tapered surfaces 132c of the upright portions 132 and the distance between the tapered top surfaces 132d of the upright portions 132 increase. Therefore, when the container 100 (container body 1) is manufactured by vacuum molding, residual stress tends to further increase the width WO between the upright portions 132 of the container body 1 on the open side edge 11 side. Here, as described above, by designing the width WO in advance to be smaller than the width WC between the upright portions 132 on the closed side edge 12 side, it is possible to prevent or suppress the width WO from becoming too large due to deterioration over time and use.

[0076] Next, the vacuum-formed assembly of container bodies 1 and assembly of lid bodies 2 are cut along flange portions 14 and 24. In this way, the container bodies 1 and lid bodies 2 can be obtained, respectively. In this way, vacuum forming can be used to manufacture the container 100, making it possible to inexpensively and easily manufacture the container 100. Furthermore, vacuum forming makes it easy to change the mold design, so it is possible to adjust the sliding resistance force, initial overcoming resistance force, final overcoming resistance force, fitting force, etc. depending on the application.

[0077] [Second embodiment] [container] Next, a second embodiment of the present disclosure will be described. The container 100 of the second embodiment will be described below, focusing on the differences from the container 100 of the first embodiment, and a description of the same points will be omitted. The container 100 of the second embodiment is similar to the container 100 of the first embodiment, except for the configuration of the fitting structure. In the following drawings, the same members as those in the second embodiment (see FIG. 1, etc.) are denoted by the same reference numerals.

[0078] FIG. 14 is a perspective view of a container according to the second embodiment as seen from above. FIG. 15 is a side view and a partially enlarged view of a container according to the second embodiment. The partially enlarged view (lower view) of FIG. 15 shows an enlarged view of the area surrounded by the two-dot chain line in the upper view. FIG. 16 is a front view and a partially enlarged view of a container according to the second embodiment. The partially enlarged view (lower view) of FIG. 16 shows an enlarged view of the area surrounded by the two-dot chain line in the upper view. FIG. 17 is a bottom view and a partially enlarged view of a container according to the second embodiment. The partially enlarged view (lower view) of FIG. 17 shows an enlarged view of the area surrounded by the two-dot chain line in the upper view. FIG. 18 is a cross-sectional view taken along line E-E' of FIG. 15 and a partially enlarged view. The partially enlarged view (lower view) of FIG. 18 shows an enlarged view of the area surrounded by the two-dot chain line in the upper view.

[0079] FIG. 19 is a cross-sectional view taken along line F-F' in FIG. 16 and a partially enlarged view. The partially enlarged view at the bottom left of FIG. 19 shows an enlarged view of the area surrounded by the dashed-dotted line in the upper view, and the partially enlarged view at the bottom right shows an enlarged view of the area surrounded by the dashed-dotted line in the upper view. FIG. 20 is a perspective view (a) and a side view (b) showing the start of closure or the completion of opening of a container according to the second embodiment, and a perspective view (c) showing the state in the middle of closing or opening the container according to the second embodiment. FIG. 21 is a perspective view (a) and a bottom view (b) showing the state immediately before the completion of closure or immediately after the start of opening of a container according to the second embodiment. The lower view of FIG. 21(b) shows an enlarged view of the area surrounded by the dashed-dotted line in the upper view.

[0080] In the container 100 of the second embodiment, no fitting structure is provided at the end on the closing direction side. Specifically, as shown in the lower right diagram of Fig. 19, the closing side edge 12 of the container body 1 and the closing side edge 22 of the lid 2 are provided with structures similar to the guide edge 13 and the sliding edge 23. Then, when the container 100 is in the closed state, the closing side edge 12 and the guide edge 13 of the container body 1 and the closing side edge 22 and the sliding edge 23 of the lid 2 are arranged so that the guide surface 131 and the sliding surface 231, the first inner surface 132a1 and the sliding wall 232, and the auxiliary guide surface 132b and the flange portion 24 face each other, thereby making it possible to suitably prevent or suppress the movement of substances (contamination, leakage, etc.) between the inside and outside of the container 100.

[0081] The outer surface 132g of the upright portion 132 of the container body 1 is adjacent to the flange portion 14. In other words, no reinforcing wall 134 is provided along the outer periphery of the container body 1 below the upright portion 132. This configuration can reduce the amount of material required to manufacture the container 100, thereby reducing the environmental impact. Furthermore, when manufacturing by vacuum molding, it can reduce the difficulty of separating the solidified resin sheet from the mold.

[0082] 18, 19, etc., the gap forming portion 25 that forms the gap G between the container body 1 and the lid 2 has a curved portion R25 at the boundary between the inclined portion 251 and the flat portion 252. This allows a larger space to be formed above the sliding edge 23 and the closing side edge 22. This also has the effect of softening the visual impression.

[0083] The container 100 has a fitting structure at the end on the opening direction side (one end in the sliding direction). The fitting structure has a first fitting portion provided on one of the container body 1 and the lid body 2, and a second fitting portion provided on the other and fitting with the first fitting portion. In this embodiment, a case will be described in which the container body 1 has the first fitting portion and the lid body 2 has the second fitting portion, but it is also possible for the lid body 2 to have the first fitting portion and the container body 1 to have the second fitting portion.

[0084] 14 has a mating recess 1101 including a recess 1101b recessed in the sliding direction and a claw 1101a protruding in a direction perpendicular to the sliding direction and toward the inside of the recess 1101b within a plane including a pair of opposing sliding sides. The second mating portion of the lid 2 has a mating protrusion 2101 that fits into the mating recess 1101. When the container 100 is in the mated state, the mating protrusion 2101 fits into the mating recess 1101, thereby fixing the lid 2 to the container body 1.

[0085] 17, the recess 1101b of the fitting recess 1101 is formed by removing a portion of the open-side guide surface 111. The recess 1101b may be formed when the resin sheet is vacuum-formed, or may be formed by processing after the container body 1 is obtained by vacuum-forming the resin sheet. On the open side of the recess 1101b, the claw 1101a protrudes by a width W1101a in a direction (width direction, Y direction) toward the inside of the recess 1101b (see FIG. 16). In the fitted state, the claw 1101a is located closer to the open side than the end of the fitting protrusion 2101 in the width direction, and prevents the lid 2 from moving toward the open side. In this way, by having the fitting recess 1101 with the claw 1101a and the recess 1101b, the fitting protrusion 2101 and the recess 1101b can be fitted together reliably without requiring a complex three-dimensional shape.

[0086] The ratio of the width W1101a (see FIG. 16) of the claw 1101a to the width W2101 (see FIG. 15) of the mating protrusion 2101 is preferably about 0.1 or more and 0.5 or less. Furthermore, the ratio of the length L1101a (see FIG. 17) of the claw 1101a to the depth D1101b (see FIG. 17) of the recess 1101b is preferably about 0.3 or more and 0.7 or less. By satisfying these ranges, it is easy to provide an appropriate mating strength. Of course, these values ​​can be set appropriately depending on individual factors such as the constituent materials, strength, and shape of each part, the desired mating strength, etc.

[0087] 15, the fitting protrusion 2101 of the lid 2 is a protrusion having a height H2101 provided below the open side wall 212. The fitting protrusion 2101 has an open side surface 2101a, a protrusion top surface 2101b, a curved side surface 2101c, and a closed side surface 2101d. In the fitted state, the curved side surface 2101c and the closed side surface 2101d abut against the peripheral surface that defines the fitting recess 1101 of the container body 1.

[0088] 21, when the first and second fitting portions are fitted together to reach the fitted state of FIG. 15, and when the first and second fitting portions are disengaged from the fitted state of FIG. 15 to reach the state of FIG. 21, the fitting recess 1101 of the container body 1 and the fitting protrusion 2101 of the lid 2 interfere with each other. Specifically, the curved side surface 2101c of the fitting protrusion 2101 contacts and presses the claw 1101a from the sliding direction. At this time, the pressed claw 1101a is bent downward, allowing the fitting protrusion 2101 to move in the sliding direction and enter the fitting recess 1101. That is, when the container 100 reaches the fitted state, the claw 1101a bends in the direction of the thick arrow surrounded by the dotted line in FIG. 21(b). 17. When the container 100 in the fitted state reaches the state shown in FIG. 21, the claw 1101a bends in the direction of the thick arrow enclosed by the dotted line in the upper drawing of FIG. Therefore, it is preferable that the claw 1101a has lower rigidity than the curved side surface 2101c, so that the claw 1101a can bend smoothly and the curved side surface 2101c can pass through the claw 1101a without being deformed.

[0089] It is preferable to release the stress applied when the claws 1101a deform over a wide area on the open-side guide surface 111. This makes it possible to prevent or suppress plastic deformation of the claws 1101a due to strong stress being applied to the base of the claws 1101a. Specifically, it is preferable that the entire open-side guide surface 111 is integrally formed from the same constituent material. Furthermore, it is preferable that the open-side guide surface 111 is made of a highly flexible resin material such as polypropylene, polyethylene, polybutylene, or polyolefin. In particular, it is preferable that the open-side guide surface 111 is made of polypropylene containing a filler. In this case, it is easy to achieve an appropriate balance between flexibility and impact resistance of the claws 1101a of the container body 1 and the surrounding area.

[0090] The shape of the recess 1101b is not particularly limited as long as it is a shape that can fit with the fitting protrusion 2101, but it is preferable that the recess 1101b has a curved shape R1101b (see FIG. 17) between the end on the closed side thereof. This makes it easier to distribute stress applied when fitting with and releasing the fitting protrusion 2101, thereby reducing damage to the container body 1. The shape of the claw 1101a is not particularly limited, but it is preferable that it be connected to the recess 1101b by a smooth curve. This makes it easier to distribute the stress applied when engaging with and releasing from the mating protrusion 2101. Similarly, it is preferable that the open end of the recess 1101b is also curved. By configuring the claw 1101a in a curved, i.e., rounded, shape, it is also possible to prevent or suppress extreme pressure from being applied to a portion of the claw 1101a when it is pressed against the curved side surface 2101c of the mating protrusion 2101.

[0091] When the claw 1101a is deformed, the curved surface 2101c of the fitting protrusion 2101 assists the deformation of the claw 1101a. That is, when the curved surface 2101c abuts against the claw 1101a, the end of the claw 1101a on the curved surface 2101c side slides over the curved surface 2101c and continuously deforms. This allows for smooth engagement and release of the engagement, improving usability. Furthermore, since engagement and release can be performed quickly, the time required for the claw 1101a to deform, i.e., the time during which stress is applied to the claw 1101a and the curved surface 2101c, is shortened, making it easier to prevent damage to the container body 1 and the lid 2. It is also preferable that the claw 1101a and the fitting protrusion 2101 have a smoothly curved surface or a curved shape, which allows for continuous application of stress to gradually bend the claw 1101a.

[0092] The width of the fitting protrusion 2101 becomes smaller from the top end to the bottom end. This allows the sides of the fitting protrusion 2101 to function as relief areas for the bent portion of the claw 1101a. This makes it easier to prevent the claw 1101a from bending at an extreme angle and becoming unable to restore its original shape due to plastic deformation. Specifically, regarding the width in the sliding direction of the fitting protrusion 2101, the width W2101b at the lower end (see FIG. 15) is smaller than the width W2101 at the upper end (see FIG. 15). Also, regarding the length in the width direction of the fitting protrusion 2101, the length L2101b at the lower end (see FIG. 17) is smaller than the length L2101 at the upper end (see FIG. 17).

[0093] The open side surface 2101a and the curved side surface 2101c of the fitting protrusion 2101 are inclined toward the inside of the container 100 from the upper end to the lower end of the fitting protrusion 2101. In other words, the angles θo2101 (see FIG. 15), θl2101 (see FIG. 16), and θc2101 (see FIG. 15) that the open side surface 2101a and the curved side surface 2101c make with the vertical direction are greater than 0°. By providing the fitting protrusion 2101 with such a shape, the claw 1101a guided by the curved side surface 2101c can pass through the fitting protrusion 2101 at a relatively small bending angle.

[0094] 15 and other figures, a first protrusion 2101e and a second protrusion 2101f are provided on the closed side surface 2101d of the fitting protrusion 2101. In the fitting protrusion 2101, whose width decreases from the upper end to the lower end, the first protrusion 2101e and the second protrusion 2101f protrude gradually toward the closed side. As a result, in the fitted state, the end portion on the closed side of the fitting protrusion 2101 (i.e., the top surface of the second protrusion 2101f) protrudes toward the closed side beyond the recess 1101b of the container body 1 by the height H2101f of the second protrusion 2101f. In other words, 2102f is located below the open-side guide surface 111. When an upward force acts on the lid 2 in the fitted state, the first tapered surface 132c of the erected portion 132 and the like at the sliding edge 23 and the closed side edge 22 can prevent the lid 2 from being lifted any further. However, the erected portion 132 is not provided at the open side edge 21. Therefore, the first protrusion 2101e and the second protrusion 2101f of the fitting protrusion 2101 abut against the container body 1 below the open-side guide surface 111, thereby preventing the lid 2 at the open side edge 21 from being lifted upward.

[0095] 17, the widthwise ends of the first protrusion 2101e and the second protrusion 2101f are located more inward than the curved side surface 2101c. The widthwise length L2101e of the first protrusion 2101e and the widthwise length L2101f of the second protrusion 2101f are shorter than the length L2101b of the lower end of the fitting protrusion 2101. By being arranged in this manner, it is possible to prevent interference between the first protrusion 2101e and the second protrusion 2101f when the curved side surface 2101c of the fitting protrusion 2101 abuts against the claw 1101a of the fitting recess 1101. It is preferable that the height H2101f (see Figure 15) of the second protrusion 2101f, which protrudes toward the closing side further than the closing side surface 2101d, which is the closing side surface of the mating protrusion 2101, does not protrude too far toward the closing side, thereby allowing the container 100 to be suitably manufactured by vacuum forming as described in the first embodiment.

[0096] By providing such fitting recess 1101 and fitting protrusion 2101 on the opening direction side, the sliding action is less likely to be impeded, and container 100 can be opened and closed smoothly. Although the description has been given of the case where the mating recess 1101 has claws 1101a at both ends in the width direction, it is sufficient that the mating recess 1101 and the mating protrusion 2101 can be mated to obtain the mated state of the container 100, and the claws 1101a may be provided on only one side in the width direction. Furthermore, the mating recess 1101 and the mating protrusion 2101 do not need to have a long shape across the width of the open side edge 11 and the open side edge 21, and may be provided only on a part of the open side edge 11 and the open side edge 21 (for example, the end, the center, etc.).

[0097] [How to use] (Mating method) Next, a description will be given of a method of using the container 100. As shown in Figures 20(a) and (b), in this embodiment, in a method of fitting the container 100, when the open side edge 11 of the container body 1 and the open side edge 21 of the lid 2 are aligned, the slide surface 231 of the open side edge 21 can be placed on the open-side guide surface 111 of the open side edge 11. The subsequent operations are as explained in the first embodiment.

[0098] (How to open) The method of use for obtaining the open state of the container 100 is the same as that described in the first embodiment. However, in this embodiment, when releasing the mating state of the mating structure, it is also possible to grasp the side wall portion 15 of the container body 1 with one hand, insert the index finger of the other hand into the mating protrusion 2101 of the lid body 2, and press the side wall portion 15 on the open side of the container body 1 with the thumb of the other hand. Furthermore, the container 100 of this embodiment can be manufactured in the same manner as in the first embodiment. The second embodiment also provides the same functions and effects as the first embodiment.

[0099] [Variation] The following describes modified examples of the above-described container 100. The above-described embodiment and the following descriptions can be combined with each other. The container 100 may have both the fitting structure described in the first embodiment and the fitting structure described in the second embodiment, which more preferably makes it easier to prevent the fitted state of the container 100 from being unintentionally released.

[0100] Furthermore, the container 100 does not necessarily have both the fitting structure described in the first embodiment and the fitting structure described in the second embodiment. For example, the container 100 described in the first embodiment may have the closed side edge 12 of the second embodiment, or the container 100 described in the second embodiment may have the open side edge 11 of the first embodiment. Even without the fitting structure, the provision of the upright portions 132 on the pair of guide edges 13 can prevent the lid 2 from falling off to some extent. This is suitable for using the contents of the container 100 shortly after filling it. For example, situations can be envisioned where the container 100 is used as tableware to serve food in places such as street stalls, welfare facilities, and hospitals. In particular, in nursing homes and hospitals, it is anticipated that users may be weak and unable to disengage a container 100 having a fitting structure, so a container 100 without a fitting structure may be more suitable.

[0101] The container 100 does not need to have the standing portions 132 on the closed side edge 12 side of the container body 1. In this case, the lid 2 can be attached to and detached from the container body 1 from both sides in the sliding direction. In this case, the distance between the standing portions 132 is preferably set to width WO on both the open side edge 11 and the closed side edge 12. Then, the distance between the standing portions 132 at the center in the sliding direction is preferably set to width WC.

[0102] Although food has been given as an example of the contents of container 100, the uses of container 100 are not limited to uses for filling food, such as tableware, food storage containers, and lunch boxes. For example, container 100 may be used to hold relatively small items such as a pill case, accessory case, stationery case, tack and screw case, fishing bait case, or card case, or may be used to hold relatively large items such as a clothing case, storage box, or tool case.

[0103] When storing, distributing, etc., the containers 100, it is conceivable to stack the container bodies 1, the lid bodies 2, or the containers 100 on top of each other. To improve stacking stability and prevent excessive adhesion due to stacking, the containers 100 may be provided with protrusions known as stacking pieces (stacking pins). Furthermore, these stacking pieces themselves may be used as fitting structures. In other words, the fitting structures may function as stacking pieces. This allows the number of protrusions, etc. provided on the containers 100 to be reduced, making manufacturing easier. Furthermore, the aesthetic appearance of the containers 100 is improved.

[0104] The engaged state of the container 100 does not necessarily have to be a closed state in which the lid 2 completely covers the container opening 10 of the container body 1. For example, the container 100 may be configured so that the engaged state is achieved when the container opening 10 is exposed to the extent shown in FIGS. 12 and 20(c). In this case, for example, when the container 100 is used as tableware, the engaged state is achieved by exposing a portion of the container opening 10, and this state is suitable for sprinkling condiments on food inside the container opening 10. Then, by returning the container 100 to the closed state and shaking the entire container 100, the condiments can be sprinkled all over the food. Furthermore, for example, the container 100 may be configured so that the engaged state is achieved when the closed side edge 22 is placed on the open side edge 11, as shown in FIGS. 11, 20(a), and 20(b). This allows, for example, eating while the lid 2 is retained on the container body 1. In this way, the degree of opening of the container 100 in the engaged state is not limited.

[0105] Furthermore, the container 100 may be configured to have a plurality of engagement states. For example, the engagement states may be three-staged, including a closed state, a state in which the container opening 10 is slightly exposed, and a state in which the container opening 10 is completely exposed. Furthermore, the fitting structure does not need to be provided on the open side edge 11, the closed side edge 12, the open side edge 21, and the closed side edge 22, but may be provided on, for example, the guide edge 13 and the slide edge 23. In this case, the degree of freedom in design is improved, particularly when it is desired to obtain a fitting state other than the closed state.

[0106] As with the above-described standing portion 132, the guide surface 131 of the guide edge 13 and the slide surface 231 of the slide edge 23 do not have to be provided over the entire length of the guide edge 13 and the slide edge 23. For example, they may be provided intermittently on the guide edge 13 or the slide edge 23. Furthermore, the guide side 13 and the slide side 23 may be a pair of opposing sides, and may be provided on the short side of a rectangle, for example.

[0107] The surfaces of the lid 2 guided by the surfaces of the guide edge 13 of the container body 1 are not limited to the sliding surface 231, the sliding wall 232, and the flange 24. FIG. 22 shows a portion corresponding to the partially enlarged views of FIGS. 8 and 18, illustrating variations of the sliding edge ((a) to (f)). As shown in FIG. 22, the lid 2 may have surfaces facing the second inner surface 132a2, the first tapered surface 132c, the tapered top surface 132d, the second tapered surface 132e, the top surface 132f, the outer surface 132g, etc., in addition to the sliding surface 231, the sliding wall 232, and the flange 24. Of course, the lid 2 is not limited to these illustrated examples, and some of these surfaces may be omitted. For example, in FIG. 22(f), the sliding wall 232 may be directly connected to the surface facing the second tapered surface 132e. Also, in FIG. 22(f), the outermost surface of the lid 2 may extend further downward. Furthermore, as shown in FIG. 22(f), a horizontal surface such as a flange or a cut surface may be provided on the outermost surface of the lid 2 as needed.

[0108] The upright portion 132 of the container body 1 does not have to be located outside the flange portion 24 of the lid 2 in the closed state. For example, the upright portion 132 may guide the lid 2 by fitting with the first gripping wall 261 of the lid 2. In other words, the container 100 may be configured as a so-called external fitting container. In this case, the lid 2 is easily accessible during the sliding movement, making it relatively easy to open and close the container 100. Furthermore, since it is easy to design the top surface 27 to be large, making the lid 2 transparent has the effect of making it easier to see the state of the contents. Furthermore, the erected portions 132 may be provided on both the inside of the first gripping wall 261 of the lid body 2 and the outside of the flange portion 24. In this case, separation (falling off) of the lid body 2 from the container body 1 can be more effectively prevented or suppressed.

[0109] Furthermore, the standing portion 132 does not have to have the curved portion R132 on the open side. Furthermore, the standing portion 132 may be provided over the entire length of the guide edge 13, up to the end on the open side of the container body 1. This allows the lid body 2 to be held between the standing portions 132 with the closed side edge 22 placed on the open side edge 11, as shown in Figures 11 and 20(a) and (b), so that the contents can be put in and taken out through the container opening 10 while the lid body 2 is attached to the container body 1.

[0110] The space above the top surface 27 of the lid 2, the mating convex portion 221, the sliding surface 231, the mating protrusion 2101, etc. may be used as a container. In this case, for example, when the container 100 is used as tableware, auxiliary contents such as condiments and toothpicks can be filled into the container 100. Another lid may be provided on top of the lid 2. The container body 1 and the lid body 2 may be made of the same material or different materials. Furthermore, each of the container body 1 and the lid body 2 may be made of a single material, or each part may be made of a different material. Although the embodiments of the present disclosure have been described above, the aspects described in the embodiments can be combined with each other. It may also be provided in the following forms:

[0111] (1) A container comprising: a container body; a lid body that is attached by moving the lid body relative to the container body from one end side to the other end side in a sliding direction; and an engagement structure that fixes the lid body to the container body, wherein the container body has a pair of opposing guide edges that extend in the sliding direction, and each of the guide edges has, on at least a portion thereof, a guide portion and an upright portion that is erected on the lid body side relative to the guide portion, the lid body has a pair of opposing slide edges that extend in the sliding direction, and each of the slide edges has a slide portion that is guided by the guide portion, and the engagement structure has a first engagement portion provided on one of the container body and the lid body, and a second engagement portion provided on the other that engages with the first engagement portion.

[0112] (2) A container according to (1) above, wherein when the lid body is attached to the container body, the upright portion of the container body is positioned outside the sliding edge of the lid body.

[0113] (3) A container as described in (1) or (2) above, wherein when the lid body is attached to the container body, the upright portions of the pair of guide sides have inclined surfaces that slope toward each other toward the lid body.

[0114] (4) A container according to any one of (1) to (3) above, wherein the guide portion of the container body has a flat guide surface, and the sliding portion of the lid body has a flat sliding surface that slides along the guide surface.

[0115] (5) A container according to any one of (1) to (4) above, wherein the distance between the upright portions of the pair of guide sides increases from one end side to the other end side in the sliding direction.

[0116] (6) A container according to any one of (1) to (5) above, wherein the first fitting portion has a fitting recess, and the second fitting portion has a fitting protrusion that can fit into the fitting recess.

[0117] (7) In the container described in (6) above, the first fitting portion further has an overhanging protrusion adjacent to the fitting recess at one end side in the sliding direction, and the second fitting portion further has an overhanging recess adjacent to the fitting protrusion at one end side in the sliding direction, and the container is configured so that when the fitting protrusion is fitted into the fitting recess, the overhanging protrusion fits into the overhanging recess.

[0118] (8) A container according to (7) above, wherein the overcoming protrusion has a first inclined surface located at one end side in the sliding direction and a second inclined surface located at the other end side in the sliding direction and having a larger inclination angle than the first inclined surface.

[0119] (9) The container according to any one of (6) to (8) above, wherein the fitting structure is provided at the other end in the sliding direction.

[0120] (10) A container according to any one of (1) to (9) above, wherein the first fitting portion has a fitting recess portion having a recess recessed in the sliding direction and a claw protruding in a plane including the pair of opposing sliding sides in a direction perpendicular to the sliding direction and toward the recess, and the second fitting portion has a fitting protrusion portion that fits into the fitting recess portion.

[0121] (11) The container according to (9) or (10) above, wherein the fitting structure is provided at one end in the sliding direction.

[0122] (12) A method of using a container described in any one of (1) to (11) above, comprising the steps of sliding the sliding edge of the lid body along the guide edge of the container body, and engaging the first engaging portion with the second engaging portion.

[0123] (13) A method for manufacturing a container described in any one of (1) to (11) above, comprising the steps of preparing a resin sheet, and adsorbing the heated resin sheet into a mold to obtain the container body and the lid body, respectively, by vacuum forming. Of course, this is not the case.

[0124] Finally, while various embodiments of the present disclosure have been described, they are presented as examples and are not intended to limit the scope of the invention. The novel embodiments may be embodied in various other forms, and various omissions, substitutions, and modifications may be made without departing from the spirit of the invention. Such embodiments and modifications are intended to be included within the scope and spirit of the invention, as well as within the scope of the inventions and their equivalents as defined in the claims. For example, in the container 100 of the first embodiment, the reinforcing wall 134 and the connecting portion 133 may be omitted, and in the container 100 of the second embodiment, the reinforcing wall 134 and the connecting portion 133 may be provided. Furthermore, in the above example, when container 100 is in the closed state, guide edge 13 and slide edge 23 cause three surfaces of container body 1 (guide surface 131, first inner surface 132a1, auxiliary guide surface 132b) to face three surfaces of lid 2 (slide surface 231, slide wall 232, flange 24). However, the number of pairs of facing surfaces may be one, two, four or more. For example, a wall may be provided that stands upright from flange 24 of lid 2, and this wall may face second inner surface 132a2 of container body 1. [Explanation of symbols]

[0125] 1: Container body 10: Container opening 100: Container 11:Open side 1101 : Department 1101a: Nail 1101b: depression 111: Open side guide surface 12: Closed side 121: Fitting recess 121a: Fitting concave surface 122: Overcoming convex part 122a: First slope 122b: Second slope 122c:Top surface 13: Guide edge 131: Guide surface 132: Standing section 132a1: First inner surface 132a2: Second inner surface 132b: Auxiliary guide surface 132c: First tapered surface 132d: Tapered top surface 132e: Second tapered surface 132f: Top 132g: External surface 133: Connection part 134: Reinforced wall 14: Tsuba section 15: Side wall 16: Bottom 161: Legs 162: Bottom part 2: Lid 21:Open side 2101: Fitting protrusion 2101a: Open side 2101b: Protruding top surface 2101c: Curved side 2101d: Closed side 2101e: 1st protrusion 2101f: 2nd protrusion 211: Open side slide surface 212:Open side wall 22: Closed side 221: Fitting protrusion 221a: mating convex surface 222: Overpass recess 222a: Overcoming concave surface 222b: Climbing over a concave wall 223: Stop wall 23: Slide edge 231: Slide surface 232: Sliding wall 24: Tsuba section 25: ギャップ forming part 251: Inclined section 252: Flat area 26: Control Department 261: The First Holding Wall 262: Hold the top 263: The Second Holding Wall 27: Face 3: The above EL: Extension cable G:ギャップ R1101b: Curve shape R121:wanqubu R132:wanqubu R25:wanqubu R261: Surface

Claims

1. A container, a container body; a lid body that is attached by moving the lid body relative to the container body from one end side to the other end side in a sliding direction; and a fitting structure that fixes the lid body to the container body, The container body has a pair of opposing guide sides extending in the sliding direction, Each of the guide sides has, at least in a part thereof, a guide portion and an erected portion erected on the lid body side relative to the guide portion, The cover has a pair of opposing sliding edges extending in the sliding direction, Each of the slide sides has a slide portion that is guided by the guide portion, the fitting structure has a first fitting portion provided on one of the container body and the lid body, and a second fitting portion provided on the other of the container body and the lid body, the second fitting portion fitting with the first fitting portion; container.

2. 10. The container of claim 1, When the lid body is attached to the container body, the erected portion of the container body is positioned outside the sliding edge of the lid body. container.

3. 10. The container of claim 1, When the lid body is attached to the container body, the erected portions of the pair of guide sides have inclined surfaces that are inclined so as to approach each other toward the lid body side. container.

4. 10. The container of claim 1, The guide portion of the container body has a flat guide surface, The sliding portion of the lid body has a flat sliding surface that slides along the guide surface. container.

5. 10. The container of claim 1, The distance between the upright portions of the pair of guide sides increases from one end side to the other end side in the sliding direction. container.

6. 10. The container of claim 1, the first fitting portion has a fitting recess, the second fitting portion has a fitting protrusion that can be fitted into the fitting recess; container.

7. 7. The container according to claim 6, the first fitting portion further includes a climbing-over protrusion adjacent to the fitting recess at one end side in the sliding direction, the second fitting portion further has a climbing-over recess adjacent to the fitting protrusion at one end side in the sliding direction, The overriding protrusion is configured to fit into the overriding recess when the fitting protrusion is fitted into the fitting recess. container.

8. 8. The container according to claim 7, The overhanging protrusion has a first inclined surface located on one end side in the sliding direction and a second inclined surface located on the other end side in the sliding direction and having a larger inclination angle than the first inclined surface. container.

9. 7. The container according to claim 6, The fitting structure is provided at the other end in the sliding direction. container.

10. 10. The container of claim 1, the first fitting portion has a fitting recess portion including a recess recessed in the sliding direction and a claw protruding in a direction perpendicular to the sliding direction and toward the inside of the recess within a plane including the pair of opposing sliding sides, the second fitting portion has a fitting protrusion that fits into the fitting recess; container.

11. 10. The container according to claim 9, The fitting structure is provided at one end in the sliding direction. container.

12. A method for using the container according to any one of claims 1 to 11, comprising: a step of sliding the slide edge of the lid body along the guide edge of the container body; and engaging the first fitting portion with the second fitting portion. How to use the container.

13. A method for manufacturing a container according to any one of claims 1 to 11, preparing a resin sheet; and adsorbing the heated resin sheet onto a mold and vacuum-forming the container body and the lid body, respectively. Container manufacturing method.

Images