Lid and container with lid

Abstract

To provide a lid that is enabled to be piled up more stably, and a container with a lid.SOLUTION: A lid 20, which closes an opening of a container main body that stores a food product, comprises: a gripping part that is gripped by a user; fitting convex parts 29a-29d formed in a convex shape at an outer periphery side of a top surface 21a of the lid 20; and fitting concave parts 27a-27d, formed in a concave shape at an outer periphery side of a lower surface of the lid 20, which are arranged at positions which are different at a specified angle from each other around a center shaft O of the lid 20 with respect to the fitting convex parts 29a-29d. A lid 20B is configured to be enabled to be piled up, in an upper direction, on another lid 20A formed in the same shape as the shape of the lid 20B. Fitting concave parts 27a-27d of the lid 20B are configured to be fitted to fitting convex parts 29a-29d of the other lid 20A, when the lid 20B is piled up on the other lid 20A at an angle at which the parts rotate around the center shaft O of the lid 20B at 90°.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a lid and a container with a lid. [Background technology]

[0002] The container lid described in Patent Document 1 has a handle located at the center of the upper surface of the lid and a handle engagement part located at the center of the lower surface of the lid. By positioning the handle of another lid within the handle engagement part of this lid, multiple lids can be stacked (see Figures 5 and 6 of Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-301789 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration described in Patent Document 1 above, stacked lids are held in place by a handle located in the center of the lid and a handle engagement portion, so the fitting positions of stacked lids coincide in the center, leaving room for improvement in the stability of the stacked lids.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and has an object to provide a lid and a container with a lid that allow the lids to be stacked more stably. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the lid according to a first aspect of the present invention is a lid that covers an opening of a container body in which food is contained, and comprises a gripping portion formed on the top surface of the lid and gripped by a user, an engaging portion formed on the outer periphery of the top surface of the lid and having either a convex or concave shape, and an engaged portion formed on the outer periphery of the underside of the lid and having the other of either a convex or concave shape and provided at a position that differs from the engaging portion by a specified angle around the central axis of the lid, and the lid is configured to be stackable upward on another lid having the same shape as the lid, and the engaged portion of the lid is configured to engage with the engaging portion of the other lid when the lid is stacked at an angle rotated by the specified angle around the central axis of the lid relative to the other lid.

[0007] In addition, the gripping portion may have a longitudinal direction extending along the radial direction of the top surface and be gripped by a user from the width direction, the engaging portion may be formed in a convex shape with two on each of both longitudinal ends of the gripping portion, and the engaged portion may be formed in a concave shape in a wall portion erected on the underside of the lid.

[0008] In addition, the lid may be provided with a plurality of vertical support legs located outside each of both longitudinal ends of the gripping portion, convex on the peripheral wall portion of the lid, extending in the vertical direction of the lid over a range from the peripheral wall portion upward beyond the top surface, and simultaneously contacting the lid installation surface at positions spaced apart from each other so that the lid can stand independently vertically on the lid installation surface, and the vertical support legs and the fitting portions may be provided in the same number and formed continuously on the same plane.

[0009] In addition, the gripping portion may have a longitudinal direction extending along the radial direction of the top surface and be gripped by a user from the width direction, and the lid may have a gap portion formed at each of both longitudinal ends of the gripping portion and a locking protrusion portion formed on a wall portion erected on the underside of the lid, and the locking protrusion portion may be configured to fit into the gap portion of the other lid when the lid is stacked relative to the other lid at an angle rotated by the specified angle around the central axis of the lid.

[0010] In order to achieve the above object, a container with lid according to a second aspect of the present invention comprises the lid and the container body. Effect of the Invention

[0011] According to the present invention, the lids can be stacked more stably. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view of a container with a lid according to one embodiment of the present invention. [Diagram 2] 1 is a cross-sectional view of a container with a lid according to one embodiment of the present invention. [Diagram 3] FIG. 2 is a perspective view of a lid according to an embodiment of the present invention. [Figure 4] FIG. 2A is a perspective view of a lid placed vertically on a table surface according to one embodiment of the present invention, and FIG. 2B is a side view of the lid. [Diagram 5] FIG. 2 is a side view of two stacked lids according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A lid and a container with a lid according to an embodiment of the present invention will be described with reference to the drawings. 1 and 2, the container with lid 10 includes a container body 30 and a lid 20 that closes the opening of the container body 30. The container with lid 10 is a rice cooker that contains food, particularly food that gives off steam, such as cooked rice. The container with lid 10 is formed in a size that can contain two cups of cooked rice. The container body 30 is cylindrical with a bottom that opens upward. The above-mentioned food is stored inside the container body 30. The container body 30 has a double structure made of metal (e.g., stainless steel) and is composed of a bottomed cylindrical inner cylinder 30a located on the inside and a bottomed cylindrical outer cylinder 30b that covers the outside of the inner cylinder 30a, and has a vacuum insulation structure with a vacuum insulation layer 30c between the inner cylinder 30a and the outer cylinder 30b.

[0014] The lid 20 is formed in a substantially circular disk shape so as to close the opening of the container body 30. The lid 20 includes an outer lid portion 21, an inner lid portion 25, and a heat insulating material 26. The outer lid portion 21 and the inner lid portion 25 are formed of, for example, a heat-resistant resin. In the following description, the direction in which the central axis O shown in Figs. 1 to 5 extends is the up-down direction, and the direction perpendicular to the central axis O is the horizontal direction. The up-down direction can be rephrased as the height direction, and in Fig. 2, the direction toward the lid 20 with respect to the container body 30 is the upper side, and the direction toward the container body 30 with respect to the lid 20 is the lower side. The horizontal direction can be rephrased as the radial direction, and in Fig. 2, the side approaching the central axis O is the radially inner side, inner circumferential side, or simply the inner side, and in Fig. 2, the side away from the central axis O is the radially outer side, outer circumferential side, or simply the outer side. The rotation direction around the central axis O is the circumferential direction.

[0015] 1, the outer lid portion 21 is exposed to the outside of the lidded container 10 when the lid 20 is attached to the container body 30. The outer lid portion 21 includes a top surface 21a that covers the upper portion, and a peripheral wall portion 21b that is provided hanging down from the outer peripheral end portion of the top surface 21a around the entire circumference. The outer lid portion 21 also includes a grip portion 22 that is provided in a convex shape extending upward from the top surface 21a, upright placement legs 23a to 23d, and fitting convex portions 29a to 29d. The central axis O extends along the up-down (height) direction of the lid 20 and passes through the center of the top surface 21a of the lid 20. The grip portion 22 is formed in an upwardly convex shape so as to pass through the central axis O of the lid 20 and to extend along the radial direction of the top surface 21a. When the lid 20 is viewed from above, the grip portion 22 is formed in a substantially rectangular shape so as to divide the top surface 21a of the lid 20 in half. The width W of the grip portion 22 along the short side direction is formed so as to gradually increase as it moves away from the central axis O of the lid 20 in the radial direction. In other words, the width W of the grip portion 22 along the short side direction is shortest on the central axis O. The grip portion 22 is formed so as to be grippable by the user's fingers from the direction of the width W (short side direction). 1 and 2, the top surface 21a is located upward, and the peripheral wall portion 21b is located horizontally all around. In contrast, as shown in Fig. 4(A) and (B), the state where one end side of the peripheral wall portion 21b is located facing a table surface T described later is defined as the vertically placed state of the lid 20, or the vertically free-standing state.

[0016] 4(B), the upper surface of gripping portion 22 is formed in a curved concave shape that becomes deeper downward in the longitudinal direction of gripping portion 22 toward central axis O. This prevents the upper surface of gripping portion 22 of lid 20A from contacting lid lower surface 25a (see FIG. 3), which will be described later, of lid 20B when lids 20A and 20B, which are two lids 20, are stacked (see FIG. 5).

[0017] 1, top surface 21a of outer lid portion 21 has a generally hemispherical concave shape that deepens downward as it approaches central axis O. Because top surface 21a has a concave shape, grip portion 22 is formed so that heights H of both short-side surfaces are greater as it approaches central axis O in its longitudinal direction. Therefore, the area of ​​both short-side surfaces of grip portion 22 near central axis O is increased, making it easier for the user to grip grip portion 22 from the direction of width W (short-side direction).

[0018] 5, when a lid 20B, which is different from the lid 20A, is stacked on the upper surface of the lid 20A, the fitting protrusions 29a to 29d of the lid 20A fit into fitting recesses 27a to 27d (described later) of the lid 20B, which is different from the lid 20A. At this time, the lid 20B is rotated 90° in the circumferential direction about the central axis O of the lids 20A and 20B relative to the lid 20A.

[0019] As shown in Fig. 1, the fitting protrusions 29a to 29d are erected on the outer periphery side of the top surface 21a of the outer lid portion 21. The two fitting protrusions 29a, 29b are located on both sides in the direction of width W of one end face (the right end face in Fig. 1) in the longitudinal direction of the gripping portion 22, and form a wall shape extending in the longitudinal direction of the gripping portion 22. A gap 29e is formed between the two fitting protrusions 29a, 29b. The two fitting protrusions 29c, 29d are located on both sides in the direction of width W of the other end face (the left end face in FIG. 1) in the longitudinal direction of gripping portion 22, and form a wall extending in the longitudinal direction of gripping portion 22. A gap 29f is formed between the two fitting protrusions 29c, 29d.

[0020] As shown in FIG. 1 and FIG. 4(A) and (B), the vertical placement legs 23a to 23d are formed in a convex shape that protrudes radially outward from the peripheral wall 21b of the lid 20 and extends in the vertical (height) direction of the lid 20. The vertical placement legs 23a to 23d are formed in a range that extends upward from the peripheral wall 21b in addition to the vertical width (height) of the peripheral wall 21b of the lid 20. The vertical placement legs 23a to 23d are formed in the same flat plate shape so as to be continuous with the corresponding fitting protrusions 29a to 29d. That is, the vertical placement legs 23a to 23d and the fitting protrusions 29a to 29d are integrally formed in an L-shaped plate shape that follows the outer periphery of the peripheral wall 21b and the top surface 21a of the lid 20. Two fitting protrusions 29a to 29d are formed at each of both ends in the longitudinal direction of the gripping portion 22.

[0021] The vertical legs 23a and 23b are provided at positions (so-called rotationally symmetric positions) spaced 180° from the vertical legs 23d and 23c in the circumferential direction of the central axis O of the lid 20. The two adjacent vertical legs 23a and 23b are approximately parallel to both sides of the gripping portion 22 in the direction of the width W through the gap 29e, and contact the table surface T simultaneously, so that the lid 20 stands on its own in the vertical direction so that the longitudinal direction of the gripping portion 22 is the up-down direction with respect to the table surface T. Similarly, the two adjacent vertical legs 23c and 23d are approximately parallel to both sides of the gripping portion 22 in the direction of the width W through the gap 29f, and contact the table surface T simultaneously, so that the lid 20 stands on its own in the vertical direction so that the longitudinal direction of the gripping portion 22 is the up-down direction with respect to the table surface T. The table surface T is an example of a lid installation surface, and refers to a place where the lid 20 can be placed, such as a dining table or a kitchen workbench. When the lid 20 stands on its own, the contact portions 23s (see FIG. 4(B)) of the upright legs 23a to 23d come into contact with the table surface T of the lid 20 incline so as to approach the central axis O as they go upward. As a result, the lid 20 stands on its own with the upper side (the top surface 21a side) slightly inclined with respect to the perpendicular direction of the table surface T, in a direction in which the table surface T faces the upper side. In this way, as the lid 20 stands on its own with an inclination, the dew receiving portions 24a, 24b described below are inclined so that the lower tips of the dew receiving portions 24a, 24b move away from the table surface T. The contact portion 23s is formed to be curved slightly concavely inward in the radial direction. Two points P1, P2 on both upper and lower ends of the contact portion 23s come into contact with the table surface T. Therefore, the contact portion 23s can come into contact with the table surface T by point contact, and the lid 20 can stand stably by itself when placed upright.

[0022] 2 and 3, the lid 20 is formed by placing a heat insulating material 26 on the underside of the outer lid part 21, and then placing and stacking the inner lid part 25 on the underside of the outer lid part 21, and joining the peripheries of the outer lid part 21 and the inner lid part 25. The heat insulating material 26 fills the entire space between the inner lid part 25 and the outer lid part 21, improving the heat retention performance of the lidded container 10.

[0023] As shown in FIG. 3, the inner lid portion 25 includes a lid lower surface 25a and a wall portion 25b. Lid underside 25a has a dome shape that bulges downward in a convex manner about central axis O. This increases the strength of lid 20, and even if lid 20 is thermally deformed, the deformation of lid underside 25a is less noticeable because lid underside 25a is dome-shaped. Furthermore, the lid lower surface 25a includes a steeply inclined surface 25c formed on the inner periphery of the dew-receiving portions 24a and 24b. The steeply inclined surface 25c is formed to have a steeper gradient than the area of ​​the lid lower surface 25a other than the steeply inclined surface 25c.

[0024] The wall portion 25b is formed to stand downward like a wall so as to surround the entire circumference of the lid lower surface 25a near the outer periphery. The wall portion 25b is substantially circular when viewed from below the lid 20. The lid 20 has a dew receiving portion 24a on the wall portion 25b on the side having the vertically placed legs 23a and 23b on the radially outer side, and a dew receiving portion 24b on the wall portion 25b on the side having the vertically placed legs 23c and 23d on the radially outer side. In other words, the dew receiving portion 24a and the vertically placed legs 23a and 23b are arranged to be aligned on the radially inner and outer sides of the lid 20, and similarly, the dew receiving portion 24b and the vertically placed legs 23c and 23d are arranged to be aligned on the radially inner and outer sides of the lid 20.

[0025] The wall 25b has fitting recesses 27a to 27d in a part thereof. The fitting recesses 27a to 27d are formed in a concave shape by cutting out a part of the wall 25b, and the fitting recesses 27a and 27b, and the fitting recesses 27c and 27d are provided so as to be adjacent to each other in the circumferential direction. In the wall 25b, locking protrusions 27e and 27f are formed between the fitting recesses 27a and 27b, and between the fitting recesses 27c and 27d, respectively. The locking protrusions 27e and 27f are formed as part of the wall 25b so as to stand in a wall shape facing downward, and their height H1 is formed lower than the wall height H2 of the part of the wall 25b where the dew receiving parts 24a and 24b are formed. The wall 25b has an inclined part 25d formed so that the wall height increases as it approaches the dew receiving parts 24a and 24b from the fitting recesses 27a to 27d.

[0026] 3 and 5, the fitting protrusions 29a-29d of the other lid 20A fit into the fitting recesses 27a-27d of the lid 20B. The fitting recesses 27a-27d each have a rectangular hole shape and have a hole width greater than the thickness of the fitting protrusions 29a-29d in the circumferential direction of the lid 20. The fitting recesses 27a, 27b are provided at positions 180° apart from the fitting recesses 27d, 27c in the circumferential direction of the central axis O of the lid 20 (so-called rotationally symmetric positions). 3 and 5, locking protrusion 27e of lid 20B fits into gap 29e of other lid 20A. Similarly, locking protrusion 27f of lid 20B fits into gap 29f of other lid 20A. Locking protrusions 27e, 27f are provided at positions spaced 180° apart in the circumferential direction of central axis O of lid 20 (so-called rotationally symmetric positions). As shown in Fig. 5, when the lid 20B is placed on the top surface of another lid 20A, even if the orientation is slightly misaligned, the inclined portion 25d of the lid 20B slides against the fitting protrusions 29a-29d and the gripping portion 22, so that the fitting protrusions 29a-29d of the lid 20A can be guided into the fitting recesses 27a-27d. In addition, the fitting recesses 27a-27d and the inclined portion 25d can secure a gap that connects the inside of the wall portion 25b of the lid 20B to the outside when the lids 20A and 20B are placed on top of each other. This gap allows the lids 20A and 20B to be immersed in a cleaning solution for cleaning when placed on top of each other, or to be efficiently dried when placed in a dryer, so that the lids can be hygienically managed. Furthermore, when the lids 20A, 20B are stacked, the lower ends of the dew receiving portions 24a, 24b of the lids 20A, 20B contact the top surface 21a or the storage surface G. The storage surface G refers to a place where the lids 20 can be placed, such as a kitchen worktop or a storage shelf.

[0027] The dew receiving portions 24a, 24b receive water droplets that have formed on the inner lid portion 25 when the lid 20 is placed vertically on the table surface T, and together with the steeply inclined surface 25c and the wall portion 25b, form an enclosed space S. The dew receiving portions 24a, 24b are located between the fitting recesses 27a, 27b and the fitting recesses 27c, 27d, respectively, around the central axis O of the lid 20. In this example, the fitting recesses 27a, 27b → dew receiving portion 24a → fitting recesses 27d, 27c → dew receiving portion 24b are arranged at 90° intervals in the circumferential direction of the wall portion 25b.

[0028] The steeply inclined surface 25c of the dew receiving portions 24a and 24b can increase the wall height H2 of the dew receiving portions 24a and 24b, and the volume of the space S formed by the steeply inclined surface 25c, the dew receiving portions 24a and 24b, and the wall portion 25b can be increased and the space S can be formed deeper downward. As shown in Figs. 4(A) and (B), when the lid 20 is tilted and stands on its own, the steeply inclined surface 25c is strongly inclined in a direction away from the lower tips of the dew receiving portions 24a and 24b, and further, the lower tips of the dew receiving portions 24a and 24b on the table surface T side (the lower side in Figs. 4(A) and (B)) are inclined with respect to the table surface T so as to move away from the table surface T. Therefore, the volume of the space S can be increased and the space S can be formed deeper downward. When the lid 20 is placed vertically, the dew receiving portions 24a, 24b serve to receive water droplets that have formed condensation on the inner lid portion 25. The space S can store the water received by the dew receiving portions 24a, 24b. As a result, the amount of water that can be stored (received) in the space S can be increased, and the stored water can be prevented from flowing out from the lower ends of the dew receiving portions 24a, 24b to the outside. In addition, each of the dew receiving portions 24a and 24b is formed so that a part of the wall portion 25b is flat. Therefore, the water in the space S does not concentrate in one place but spreads and accumulates along the flat plate, and the part of the dew receiving portions 24a and 24b is prevented from becoming a flow path for the accumulated water, and the water can be prevented from flowing out from the lower end of the dew receiving portions 24a and 24b to the outside.

[0029] Next, a method for vertically placing the lid 20 will be described. At the start of this description, food (cooked rice) is contained in the container body 30, and water droplets due to condensation are attached to the lid underside 25a of the lid 20 that closes the opening of the container body 30. The user holds the gripping portion 22 of the lid 20 in the width W direction (short side direction), and removes the lid 20 from the container body 30 while holding the gripping portion 22. At this time, as shown by the arrow Ar in FIG. 1, the user opens the lid 20 so that the longitudinal direction of the gripping portion 22 is oriented along the up-down (height) direction. Then, as shown in FIG. 4(A) and (B), the user places the lid 20 vertically relative to the table surface T, brings the vertical placement legs 23a and 23b of the lid 20 into contact with the table surface T, and releases the gripping portion 22. As a result, the vertical placement legs 23a and 23b come into contact with the table surface T at the same time, and the lid 20 stands upright in the vertical position. When the lid 20 is oriented vertically, water droplets attached to the lid bottom surface 25a fall along the lid bottom surface 25a or the inner surface of the wall portion 25b due to its own weight, and the fallen water is collected in the space S. The dew receiving portion 24a prevents water due to condensation from dropping onto the table surface T. In addition, since the lid 20 stands upright on the table surface T, the lid underside 25a does not come into contact with the table surface T, and water does not adhere to the table surface T.

[0030] Next, a method for stacking the lids 20A, 20B will be described with reference to Fig. 5. This stacking operation is carried out in a storage location for the lids 20A, 20B or on a workbench. First, the user places the lid 20A on the storage surface G so that the lower end of the dew receiving portion 24a, 24b of the lid 20A contacts the storage surface G. Next, prepare a lid 20B different from the placed lid 20A, rotate the other lid 20B 90 degrees around the central axis O of the lid 20A with respect to the lid 20A, and bring the lower surface of the lid 20B close to the upper surface of the lid 20A. As a result, the fitting recesses 27a to 27d of the lid 20B fit into the fitting protrusions 29a to 29d of the lid 20A. As a result, the two lids 20A, 20B are stacked, and the lids 20A, 20B can be compactly placed and stored in a storage area or the like. When the lids 20A, 20B are stacked, the relative rotation of the lids 20A, 20B around the central axis O is restricted by the fitting protrusions 29a to 29d and the fitting recesses 27a to 27d fitting with each other. This makes it possible to prevent the stacked lids 20A, 20B from collapsing. Similarly, when two lids 20A, 20B are stacked, the locking protrusion 27e of the lid 20B fits into the gap 29e of the other lid 20A, and the locking protrusion 27f of the lid 20B fits into the gap 29f of the other lid 20A. As a result, when the lids 20A, 20B are stacked, the engagement of the locking protrusions 27e, 27f with the gaps 29e, 29f restricts the relative rotation of the lids 20A, 20B around the central axis O, and restricts radial displacement in the longitudinal direction of the gripping portion 22. This makes it possible to prevent the stacked lids 20A, 20B from collapsing. In this example, two lids 20A, 20B are stacked, but three or more lids 20 may be stacked. Furthermore, when the lower surface of lid 20B is brought closer to the upper surface of lid 20A while lid 20B is shifted by a certain angle from 90° around central axis O relative to lid 20A, any of mating protrusions 29a-29d of lid 20A comes into contact with and slides against inclined portion 25d of wall portion 25b of lid 20B or gripping portion 22, thereby guiding mating protrusions 29a-29d into mating recesses 27a-27d.

[0031] (effect) According to the embodiment described above, the following effects are achieved. (1-1) The lid 20, which covers the opening of the container body 30 in which food is contained, is provided with a gripping portion 22 formed on the top surface 21a of the lid 20 and which is gripped by a user, and vertical support legs 23a, 23b or 23c, 23d formed on the peripheral wall portion 21b of the lid 20 and which are an example of a self-supporting contact portion that contacts the table surface T, which is an example of a lid installation surface, so that the lid 20 can stand on its own in the vertical direction with respect to the table surface T, which is an example of a lid installation surface. According to this configuration, the lid 20 can stand on its own by the upright legs 23a, 23b or 23c, 23d formed on the peripheral wall portion 21b of the lid 20. Therefore, the lid 20 can stand on its own with a simpler configuration. Since the lid 20 has a simple structure while being self-supporting, the lid 20 can be easily stored in a dishwasher or on a storage shelf, and can be stored stably in a space-saving manner. In addition, in the configuration described in Patent Document 1, the trouble of raising the hanging portion in order to make the lid stand on its own was required, but in the above configuration, such trouble is eliminated and the lid 20 can be easily made to stand on its own. By allowing the lid 20 to stand upright in the vertical direction, it is possible to reduce the space that the lid 20 occupies on the table surface T. Also, by allowing the lid 20 to stand upright in the vertical direction, the lid underside 25a, which may come into direct contact with food, does not come into contact with the table surface T, and the lid underside 25a can be kept clean.

[0032] (1-2) The grip portion 22 extends longitudinally along the radial direction of the circular top surface 21a passing through the central axis O, and is gripped by the user from the width direction (short side direction). The vertical placement legs 23a, 23b or 23c, 23d are located on the outer sides of both longitudinal ends of the grip portion 22, convex on the peripheral wall portion 21b of the lid 20, extend in the up-down (height) direction of the lid 20, and simultaneously contact the table surface T at positions spaced apart from each other so that the lid 20 can stand on its own vertically on the table surface T. According to this configuration, when the lid 20 is made to stand on the table surface T, the multiple upright legs 23a, 23b or 23c, 23d come into contact with the table surface T, so that the lid 20 can stand on its own more stably.

[0033] (1-3) The lid 20 is provided with dew receiving portions 24a, 24b which are an example of a liquid receiving portion that receives liquid that falls due to its own weight attached to the lid underside 25a when the lid 20 is upright on the lid underside 25a and supports itself vertically relative to the table surface T. According to this configuration, the dew receiving portions 24a, 24b prevent water adhering to the lid underside 25a from dripping onto the table surface T when the lid 20 is in a self-supporting state.

[0034] (1-4) The dew receiving portion 24a and the upright legs 23a, 23b are arranged to be aligned radially inside and outside the lid 20. According to this configuration, when the lid 20 stands on its own with the upright legs 23a, 23b in contact with the table surface T, the dew receiving portion 24a is located closer to the table surface T (i.e., in the direction in which gravity acts) with respect to the central axis O. Therefore, the dew receiving portion 24a can more reliably receive water that falls due to its own weight, and the water received by the dew receiving portions 24a, 24b can be stored in the space S.

[0035] (1-5) The vertical legs 23a to 23d tilt the lid 20 relative to the vertical direction of the table surface T so that, when the lid 20 is standing vertically on the table surface T, the dew receiving portions 24a, 24b are oriented in a direction away from the table surface T as they move away from the lid underside 25a. According to this configuration, the water received by the dew receiving portions 24a and 24b and collected in the space S is prevented from dropping onto the table surface T. This prevents the table surface T from becoming soiled by water or food.

[0036] (1-6) The lid 20 includes mating protrusions 29a-29d, which are an example of a mating portion formed on the outer periphery of the top surface 21a of the lid 20 and have a convex shape, and mating recesses 27a-27d, which are an example of a mated portion formed on the wall portion 25b on the outer periphery of the lid lower surface 25a and have a concave shape, and are provided at a position different by a specified angle (for example, 90°) from the mating protrusions 29a-29d around the central axis O of the lid 20. The lid 20B is configured to be stacked in the upward (height) direction on another lid 20A having the same shape as the lid 20B. The mating recesses 27a-27d of the lid 20B are configured to fit into the mating protrusions 29a-29d of the other lid 20A when the lid 20B is stacked on the other lid 20A at an angle rotated by 90° around the central axis O of the lid 20B. According to this configuration, the fitting convex portions 29a-29d and the fitting concave portions 27a-27d are provided on the outer periphery side of the lids 20A, 20B and at positions spaced apart around the central axis O of the lid 20. Therefore, a plurality of the lids 20A, 20B can be stacked more stably.

[0037] (2-1) The lid 20, which closes the opening of the container body 30 in which food is stored, includes a gripping portion 22 to be gripped by a user, fitting protrusions 29a-29d, which are an example of a fitting portion formed on the outer periphery of the top surface 21a of the lid 20 and have a convex shape, and fitting recesses 27a-27d, which are formed on the wall portion 25b on the outer periphery of the lid lower surface 25a and have a concave shape, and are provided at positions that differ by a specified angle around the central axis O of the lid 20 from the fitting protrusions 29a-29d. The lid 20B is configured to be stacked in the upward (height) direction on another lid 20A having the same shape as the lid 20B. The fitting recesses 27a-27d of the lid 20B are configured to fit into the fitting protrusions 29a-29d of the other lid 20A when the lid 20B is stacked on the other lid 20A at an angle rotated by a specified angle (90°) around the central axis O of the lid 20B. According to this configuration, the fitting protrusions 29a-29d and the fitting recesses 27a-27d are provided on the outer periphery of the lids 20A, 20B and at positions spaced apart around the central axis O of the lids 20A, 20B. Therefore, a plurality of the lids 20A, 20B can be stacked more stably. Even when food is stored in a plurality of container bodies 30, the work can be performed with the plurality of lids 20A, 20B stacked, and a larger working space can be secured.

[0038] (2-2) The grip portion 22 extends longitudinally along the radial direction of the circular top surface 21a passing through the central axis O, and is gripped by a user from the width direction (short side direction). The fitting protrusions 29a-29d are formed in a protruding shape, two at each end of the grip portion 22 in the longitudinal direction. The fitting recesses 27a-27d are disposed at positions that differ by 90° around the central axis O of the lid 20 from the fitting protrusions 29a-29d, and are formed in a concave shape in the wall portion 25b that stands in a wall shape downward so as to surround the entire circumference of the lid lower surface 25a near the outer periphery. With this configuration, the lids 20 can be stacked in different orientations at 90° to each other. In addition, the mating protrusions 29a, 29b and the mating protrusions 29d, 29c, and the mating recesses 27a, 27b and 27d, 27c are each provided in two locations on a diagonal line passing through the central axis O. Therefore, when stacking the lid 20B on the lid 20A, it is possible to stack them regardless of whether the lid 20B is rotated 90° or 270° around the central axis O with respect to the lid 20A.

[0039] (2-3) The lid 20 has a plurality of vertical placement legs 23a, 23b or 23c, 23d that are located outside both ends of the gripping portion 22 in the longitudinal direction, convex on the peripheral wall portion 21b of the lid 20, extend in the up-down (height) direction of the lid 20 over a range from the peripheral wall portion 21b to above the top surface 21a, and contact the table surface T simultaneously at positions spaced apart from each other so that the lid 20 can stand on its own vertically on the table surface T. The vertical placement legs 23a to 23d and the fitting convex portions 29a to 29d are provided in the same numbers, and are formed continuously on the same plane. According to this configuration, the upright legs 23a to 23d and the fitting protrusions 29a to 29d can be formed continuously, and a simpler configuration can be realized.

[0040] (2-4) The grip portion 22 has a longitudinal direction extending along the radial direction of the top surface 21a, and is gripped by a user from the width direction (short side direction). The lid 20 has gaps 29e, 29f formed at both longitudinal ends of the grip portion 22, and locking protrusions 27e, 27f formed on a wall portion 25b standing on the lid lower surface 25a. The locking protrusions 27e, 27f of the lid 20B are configured to fit into the gaps 29e, 29f of another lid 20A when the lid 20B is stacked with respect to another lid 20A at an angle rotated by a specified angle around the central axis O of the lid 20B. According to this configuration, the lids 20A, 20B can be stably stacked due to the engagement between the gaps 29e, 29f and the locking protrusions 27e, 27f.

[0041] The present disclosure is not limited to the above-described embodiments and drawings. Modifications (including deletion of components) can be made as appropriate within the scope of the present disclosure. An example of a modification will be described below.

[0042] (Modification) In the above embodiment, the container body 30 has a cylindrical shape with a bottom, but is not limited thereto and may be formed into a square tubular shape with a bottom. In this case, the lid 20 has a substantially rectangular plate shape with four sides.

[0043] In the above embodiment, the outer lid portion 21 and the inner lid portion 25 are formed as separate bodies, but they may be formed as an integral body. In the above embodiment, the insulation 26 of the lid 20 may be omitted.

[0044] In the above embodiment, the mating protrusions 29a, 29b and the mating protrusions 29d, 29c, and the mating recesses 27a, 27b and 27d, 27c are provided at two positions on a diagonal line. Therefore, the lid 20B is configured to be stackable on the upper surface of the lid 20A in a state rotated 90° around the central axis O of the lid 20B with respect to the lid 20A. However, the mating protrusions 29a, 29b and the mating protrusions 29d, 29c, and the mating recesses 27a, 27b and the mating recesses 27d, 27c may be provided at two or more positions, and in that case, the lids 20A and 20B may be configured to be stackable at an angle other than 90°. For example, if three positions are provided, the mating protrusions 29a, 29b and the mating protrusions 29d, 29c, and the mating recesses 27a, 27b and the mating recesses 27d, 27c may be provided at two or more positions, and the lids 20A and 20B may be configured to be stackable at an angle other than 90°. For example, if three positions are provided, the mating protrusions 29a, 29b and the mating protrusions 29d, 29c, and the mating recesses 27a, 27b and the mating recesses 27d, 27c may be provided at three or more positions, and the mating protrusions 29a, 29 ... In this case, the fitting recesses 27a, 27b may be disposed at positions that differ from the fitting protrusions 29a, 29b by an angle other than 90° around the central axis O of the lid 20, for example, by 10° to 80°.

[0045] In the above embodiment, two sets of two vertical legs (a combination of vertical legs 23a and 23b and a combination of vertical legs 23c and 23d) are provided, but only one set of two vertical legs may be provided, or three or more sets may be provided. Also, although one set is composed of two vertical legs, one set may be composed of three or more vertical legs.

[0046] In the above embodiment, two sets of two mating protrusions (the combination of mating protrusions 29a, 29b and the combination of mating protrusions 29c, 29d) are provided, but only one set of two mating protrusions may be provided, or three or more sets of two mating recesses may be provided. Similarly, only one set of two corresponding mating recesses may be provided, or three or more sets of two corresponding mating recesses may be provided. Furthermore, in the above embodiment, two mating protrusions 29a-29d were provided on each of both ends of gripping portion 22, but one mating protrusion may be provided on each of both ends of gripping portion 22, or three or more mating protrusions may be provided on each of both ends. In the above embodiment, the fitting protrusions 29a to 29d and the upright legs 23a to 23d are formed continuously, but they may be formed at separate positions and not continuous with each other.

[0047] In the above embodiment, the vertical legs 23a to 23d were formed in a range extending from the peripheral wall portion 21b of the lid 20 upwardly above the top surface 21a, but this is not limited thereto and the vertical legs may be formed only within the vertical range of the peripheral wall portion 21b of the lid 20. In the above embodiment, the vertical placement legs 23a to 23d are in contact with the table surface T at two points P1 and P2, but they may be in contact at three or more points, or may be in line contact or surface contact. Furthermore, the vertical placement legs 23a to 23d do not need to have the same shape, and may be in contact with the table surface T at a total of three points (P1, P2, P3), for example, with the vertical placement leg 23a at two points (P1, P2) and the vertical placement leg 23b at one point (P3). This allows the contact portion 23s to be in contact with the table surface T at a total of three points, and the lid 20 can stand stably in the vertical position. In the above embodiment, instead of the upright legs 23a to 23d, the peripheral wall 21b of the lid 20 may be partially formed flat, and the flat portion may be in surface contact with the table surface T as a self-supporting contact portion, thereby allowing the lid 20 to stand on its own.

[0048] In the above embodiment, the convex and concave fitting protrusions 29a-29d and the fitting recesses 27a-27d may be reversed. In this case, a concave groove may be formed in the fitting protrusions 29a-29d of the lid 20A, and a convex shape may be formed in the wall portion 25b of the lid 20B instead of the fitting recesses 27a-27d, and the lids 20A and 20B may be stacked by fitting the convex shape into the groove.

[0049] In the above embodiment, the grip portion 22 has a generally rectangular parallelepiped shape that passes through the central axis O and is aligned in the radial direction of the circular top surface 21a. However, the shape of the grip portion 22 can be changed as appropriate. In the above embodiment, the lid 20 is inclined with respect to the vertical direction of the table surface T when it stands by itself in the vertical direction, but it may be perpendicular to the table surface T without being inclined. In the above embodiment, the dew receiving portions 24a, 24b extend parallel to the central axis O. However, they may be inclined so as to approach the central axis O from the lid lower surface 25a toward the tip of the dew receiving portions 24a, 24b. In the above embodiment, the dew receiving portions 24a, 24b are formed in a plate shape, but the present invention is not limited to this and may have a recessed shape for storing water. In the above embodiment, the inclined portion 25d of the wall portion 25b may be omitted, and the height of the wall portion 25b may be constant. The steeply inclined surface 25c of the lid lower surface 25a may be omitted. Also, the lid lower surface 25a, the top surface 21a, or the upper surface of the gripping portion 22 may be formed as a flat surface. The material of the lid 20 is not limited to resin, and it may be made of metal or wood. Similarly, the material of the container body 30 is not limited to metal, and may be made of resin or wood.

[0050] In the above embodiment, either one of the upright placement legs 23a, 23b and the upright placement legs 23c, 23d may be omitted, or all of the upright placement legs 23a to 23d may be omitted. In the above embodiment, either one of the dew receiving portions 24a, 24b or both of the dew receiving portions 24a, 24b may be omitted. In the above embodiment, the fitting protrusions 29a to 29d and the fitting recesses 27a to 27d may be omitted. [Explanation of symbols]

[0051] 10...container with lid, 20, 20A, 20B...lid, 21...outer lid portion, 21a...top surface, 21b...peripheral wall portion, 22...grip portion, 23a-23d...vertical placement legs, 23s...contact portion, 24a, 24b...dew receiving portion, 25...inner lid portion, 25a...lid bottom surface, 25b...wall portion, 25c...steep surface, 25d...inclined portion, 26...thermal insulation material, 27a-27d...fitting recess, 27e, 27f...locking protrusion, 29a-29d...fitting protrusion, 29e, 29f...void portion, 30...container body, G...storage surface, O...center axis, S...space, T...table surface

Claims

1. A lid for closing an opening of a container body in which food is contained, A grip portion formed on a top surface of the lid and gripped by a user; a fitting portion formed on an outer circumferential side of a top surface of the lid and having either a convex or concave shape; a fitted portion formed on an outer circumferential side of a lower surface of the lid, having a shape of either a convex shape or a concave shape, and provided at a position that differs from the fitting portion by a specified angle around a central axis of the lid, The lid is configured to be stackable upwardly on another lid having the same shape as the lid; The fitted portion of the lid is configured to fit into a fitting portion of the other lid when the lid is stacked with respect to the other lid at an angle rotated by the specified angle around the central axis of the lid. lid.

2. The grip portion has a longitudinal direction extending along a radial direction of the top surface and is gripped by a user from a width direction, The fitting portion is formed in a convex shape, two of which are formed on each of both ends of the grip portion in the longitudinal direction, The fitted portion is formed in a concave shape in a wall portion erected on the lower surface of the lid. The lid of claim 1.

3. the lid is provided with a plurality of vertical support legs positioned outside both longitudinal ends of the gripping portion, protruding from a peripheral wall portion of the lid, extending in a vertical direction of the lid over a range extending from the peripheral wall portion upward beyond the top surface, and simultaneously contacting the lid installation surface at positions spaced apart from each other so that the lid can stand independently in a vertical direction relative to the lid installation surface; The vertical mounting legs and the fitting parts are provided in equal numbers and are formed contiguously on the same plane. A lid as claimed in claim 2.

4. The grip portion has a longitudinal direction extending along a radial direction of the top surface and is gripped by a user from a width direction, The lid is A gap portion formed at each of both ends of the grip portion in the longitudinal direction; a locking protrusion formed on a wall portion erected on the lower surface of the lid, The locking protrusion is configured to fit into a gap of the other lid when the lid is stacked on the other lid at an angle rotated by the specified angle around the central axis of the lid. The lid of claim 1.

5. A lid according to any one of claims 1 to 4; The container body includes: Container with lid.

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