Lid body

Abstract

To provide a lid body that ensures heat insulation property and allows an environment adaptation material to attach and detach relatively easily.SOLUTION: A lid body 5 which opens and closes an opening 4 of a container 1 includes: an installation part 32 that can install a cold insulator 31 on a back surface side of the lid body 5 that is attached on a storage part 3 side of the container 1; and a holding mechanism 33 that can hold the cold insulator 31 that is installed in the installation part 32 on the back surface side of the lid body 5. The holding mechanism 33 includes: a slide member 41 that is slidable and displaceable between a holding position where the cold insulator 31 placed in the installation part 32 in parallel with the back surface of the lid body 5 is held; and a release position where the cold insulator 31 placed in the installation part 32 is released from the held state.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present invention relates to a lid for opening and closing an opening of a container. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there has been known a technique for providing an environmentally adaptable material, such as a cooling agent, on a lid in order to create a predetermined environment in the storage section (storage space) of a container (see, for example, Patent Document 1, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 4-3976 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the lid described in the above Patent Document 1 has a storage section that opens upward, and when storing or removing a cooling agent from the storage section, it is necessary to attach and detach an auxiliary lid that opens and closes the opening of the storage section. Here, if the thermal insulation of the lid (airtightness of the storage space of the container) is prioritized, there is a concern that the work of attaching and detaching the auxiliary lid will be relatively difficult. On the other hand, if the work of attaching and detaching the auxiliary lid is made relatively easy, there is a concern that the thermal insulation of the lid will be reduced.

[0005] The present invention has been made to solve the problems exemplified above, and its object is to provide a lid body that ensures insulation while allowing environmentally adaptive material to be attached and detached relatively easily. [Means for solving the problem]

[0006] The following describes each of the means suitable for achieving the above objects. Note that, as necessary, the specific effects of the corresponding means will be added.

[0007] Means 1. A lid for opening and closing the opening of a container, a mounting portion on a back side of the lid that is disposed on the side of the container housing, where an environmentally adaptive material can be mounted; a holding means for holding the environmentally adaptive material placed on the placement section on the back side of the lid, The lid body is characterized in that the holding means is provided with a sliding member that is slidable between a holding position that holds the environmentally adaptive material placed on the installation section and a release position that releases the held state of the environmentally adaptive material placed on the installation section, parallel to the back surface of the lid body.

[0008] According to the first aspect, an installation section where the environmentally adaptive material can be installed and a holding means capable of holding the environmentally adaptive material are provided on the back side of the lid, and the function of the environmentally adaptive material can be effectively exerted on the back side of the lid (the effect of the installation of the environmentally adaptive material can be effectively exerted on the storage section side of the container) without causing a decrease in the functions (thermal insulation, airtightness, etc.) of the lid. In addition, the holding means is equipped with a sliding member, and the environmentally adaptive material can be attached and detached with a relatively simple operation. Therefore, the environmentally adaptive material can be attached and detached relatively easily while ensuring the thermal insulation and airtightness (when the opening of the container is closed).

[0009] In addition, the slide member is configured to be slidable parallel to the back surface of the lid, and compared to, for example, a case where a projecting and retracting member displaced in the vertical direction is used as the holding means instead of the slide member, it is possible to more reliably prevent the state in which the environmental adaptive material is held from being released when a force that displaces downward acts on the environmental adaptive material. Furthermore, compared to, for example, a rotating member that rotates and displaces is used as the holding means instead of the slide member, it is possible to suitably set the area and arrangement of the part that holds the environmental adaptive material with one slide member, and it is possible to ensure as large an area as possible for the part that prevents the slide member from falling off the lid. Therefore, for example, when a downward force acts on the environmental adaptive material during the opening and closing of the lid or the loading and unloading of the container, it is possible to more reliably prevent the environmental adaptive material from falling off the holding means (damage to the slide member) and the holding means (slide member) from falling off the lid. Therefore, even in a configuration in which the environmental adaptive material is installed on the back surface side of the lid, the environmental adaptive material can be reliably held, and the item contained in the container can be transported more safely, and workers can open and close the lid and load and unload the container with peace of mind.

[0010] The lid may be detachably attached to the container body (container body) that opens upward, or may be connected to the container body so as to be rotatably displaceable. In particular, with respect to a lid that is detachably attached to the container body, when attaching or detaching the environmentally adaptive material with the lid removed from the container body, the surface of the lid that is located on the outer surface side of the container is grounded on the installation surface such as a table or the ground, and the back side is not grounded. Therefore, compared to a configuration in which the back side of the lid needs to be grounded when attaching or detaching the environmentally adaptive material, the hygiene of the storage section of the container can be improved.

[0011] Means 2. At least a first slide member and a second slide member are provided as the slide members on the first side edge side of the side edge portion of the cover body, The holding means is an individual holding state in which the first slide member and the second slide member each hold different environmental adaptive materials; The lid body described in Means 1 is characterized in that the first slide member and the second slide member are configured to be able to change their state to a joint holding state in which they hold a common environmentally adaptive material.

[0012] According to the second aspect, the number of environmentally adaptive materials installed can be changed according to the purpose (item to be stored in the container) (two in the case of the individual holding state by the first slide member and the second slide member, one in the case of the joint holding state) and the position of the environmentally adaptive material can be changed (a position between the first slide member and the second slide member in the joint holding state by the first slide member and the second slide member, and a position corresponding to the first slide member and the second slide member in the individual holding state). Therefore, it is possible to use the container in a wide variety of ways.

[0013] Means 3. A lid body as described in Means 2, characterized in that the first slide member and the second slide member are displaced from an arrangement corresponding to the individual holding state to an arrangement corresponding to the joint holding state by bringing the first slide member and the second slide member closer to each other.

[0014] According to Means 3, the image of the goal, that is, the first slide member and the second slide member hold a common environmentally adaptive material, and the image of the operation, that is, moving the first slide member and the second slide member closer to each other, can be easily matched, and the work of attaching and detaching the environmentally adaptive material as appropriate can be performed relatively smoothly without confusing the worker.

[0015] Means 4. The lid body is a first mark that is covered by the first slide member and the second slide member when the holding means is in the individual holding state, and is exposed so as to be visible from the back side of the lid body when the holding means is in the common holding state; The lid body described in Means 3 is characterized in that it is covered by the first slide member and the second slide member when the holding means is in the joint holding state, and is exposed so as to be visible from the back side of the lid body when the holding means is in the individual holding state.

[0016] According to the fourth aspect, it is possible to relatively easily convey to an operator where the slide member needs to be displaced in order to set the holding means to the individual holding state and the common holding state.

[0017] Means 5. The holding means (corresponding to the above-mentioned means 2, on the second side portion of the side portion of the lid body, which is the side portion opposite to the first side portion) has a recessed holding portion capable of holding a portion of the environmentally adaptive material on the side of the target side portion, The lid body described in means 1 or 2 is characterized in that the environmentally adaptive material is configured to be removable by displacing the sliding member holding the environmentally adaptive material to the release position from a state in which the environmentally adaptive material is held by the holding means, and rotating the environmentally adaptive material around the portion of the environmentally adaptive material on the side of the side edge portion held by the recessed holding portion in a direction that moves the environmentally adaptive material away from the installation portion.

[0018] According to Means 5, for example, compared to a configuration in which the environmentally adaptive material is held by only a sliding member, it is possible to simplify the configuration for holding the environmentally adaptive material, improve the ease of attaching and removing the environmentally adaptive material, and stabilize the holding state of the environmentally adaptive material.

[0019] Means 6. The holding means is configured to be capable of holding a plurality of environmentally adaptive materials placed on the installation section, and is configured to be capable of holding a predetermined number of environmentally adaptive materials placed on the installation section in different arrangements; As the recessed portion holding portion, a first recessed portion holding portion and a second recessed portion holding portion are provided, and at least two of the recessed portion holding portions are used to hold one environmentally adaptive material; A portion of the environmental adaptive material held by the first recessed portion holding portion is restricted in relative displacement in a lateral vibration direction that intersects with a direction in which the environmental adaptive material is inserted into the recessed portion holding portion and extends parallel to a rear surface of the lid body by the first recessed portion holding portion, A portion of the environmentally adaptive material held by the second recessed portion retaining portion is restricted by the second recessed portion retaining portion from relative displacement in the lateral vibration direction toward at least one of a side approaching the first recessed portion retaining portion and a side moving away from the first recessed portion, As a disposition of the environmental adaptive material on the installation section, a first disposition in which the first recessed holding portion and the second recessed holding portion are used to hold the environmental adaptive material, and a second disposition in which only two or more of the second recessed holding portions are used to hold the environmental adaptive material are configured to be possible; The lid body described in Means 5 is characterized in that the second recess retaining portion used when the environmentally adaptive material is in the first arrangement and the specified second recess retaining portion used when the environmentally adaptive material is in the second arrangement are provided in a continuous manner.

[0020] According to the sixth aspect, the first recessed holding portion is provided, and by using at least the first recessed holding portion when holding the environmentally adaptive material, the relative displacement (positional deviation) of the environmentally adaptive material in the lateral vibration direction is prevented, and the holding state of the environmentally adaptive material can be stabilized. In addition, by using two second recessed holding portions when holding the environmentally adaptive material, the configuration is also capable of preventing the relative displacement of the environmentally adaptive material in the lateral vibration direction. Therefore, in a configuration that can hold the environmentally adaptive material in different arrangements, the recessed holding portion can be suitably arranged while providing the recessed holding portion with a function of preventing positional deviation in the lateral vibration direction. In addition, the second recessed holding portion is configured such that the second recessed holding portion used in the first arrangement of the environmentally adaptive material and the predetermined second recessed holding portion used in the second arrangement are continuous (connected), and therefore the complication of the configuration of the recessed holding portion can be suppressed. Furthermore, when the position of the portion of the environmental adaptive material in the first arrangement that is inserted into the second recessed holding portion is misaligned with the position of the portion of the environmental adaptive material in the second arrangement that is inserted into the second recessed holding portion, the second recessed holding portion that allows each to be inserted is configured as a single piece, thereby forming a wide second recessed holding portion. In this case, it is possible to improve the workability when installing the environmental adaptive material in the installation portion.

[0021] Means 7. A lid body as described in Means 1, characterized in that it is provided with an anti-rattle protrusion that regulates relative displacement in a direction in which the holding state of the environmentally adaptive material placed on the installation section by the holding means is released or easily released.

[0022] According to the seventh aspect, it is possible to prevent the environmentally adaptive material from being displaced relative to the holding means in a direction that would cause the holding state of the holding means to be released or to be easily released, and to further stabilize the holding state of the environmentally adaptive material. By providing the anti-rattle protrusion described in the seventh aspect and the recessed holding portion described in the sixth aspect with a configuration that restricts displacement in the lateral vibration direction, the holding means as a whole can reliably hold the environmentally adaptive material simply by preventing the environmentally adaptive material from being displaced downward (falling into the container's storage portion) on the sliding member side. Therefore, the effect of improving the ease of attaching and detaching the environmentally adaptive material while suppressing the complication of the sliding member, etc., becomes more pronounced. [Brief description of the drawings]

[0023] [Figure 1] FIG. 2 is a perspective view showing the container with the opening closed. [Diagram 2] FIG. 2 is a perspective view including a partial cross section showing the container with the opening closed. [Diagram 3] 11 is a perspective view showing the rear side of the lid body with the ice pack attached thereto. FIG. [Figure 4] FIG. 2 is a perspective view showing a cooling agent (particularly, FIG. 2(b) shows the contact surface side). [Diagram 5] FIG. 2 is a perspective view showing the front surface side of the lid body. [Figure 6] 13 is a perspective view showing the rear side of the lid body with the slide member removed. FIG. [Figure 7] 13 is a perspective view showing the rear side of the lid body with the slide member removed. FIG. [Figure 8] FIG. 4 is a partially enlarged perspective view including a partial cross section of the lid body. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] FIG. 4 is a partially enlarged perspective view including a partial cross section of the lid body. [Figure 12] 13 is a bottom view showing the cover when the ice packs are in the first arrangement (individually installed position) and the holding mechanism is in an individual holding state. FIG. [Figure 13]FIG. 13 is a bottom view showing the cover in a state where the ice pack is in a first arrangement (individual installation position), one slide member is in a release position, and the other slide member is in a retaining position. [Figure 14] 13 is a bottom view showing the cover when the ice pack is in the second arrangement (commonly installed position) and the holding mechanism is in the communally held state. FIG. [Figure 15] FIG. 13 is a bottom view showing the cover in a state where the ice pack is in the second arrangement (common installation position), one slide member is in the release position, and the other slide member is in the retaining position. [Figure 16] 1A is a cross-sectional view of the lid etc. showing the process of removing the ice pack, FIG. 1B is a cross-sectional view of the lid etc. with the sliding member in the released position, and FIG. 1C is a partially enlarged cross-sectional view of the lid etc. with the sliding member in the retaining position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] An embodiment will be described below with reference to the drawings. As shown in Figures 1 and 2, the container 1 is in the shape of a substantially rectangular box that opens upward and includes a container body 2 having a storage section 3 capable of storing items therein, and a lid 5 that opens and closes an opening 4 of the container body 2. The lid 5 of this embodiment is configured to be detachable from the container body 2.

[0025] The container body 2 includes a bottom wall component 11 having a generally rectangular shape in plan view, long side sidewall portions 12 each extending upward from a pair of opposing long side portions of the bottom wall component 11, and short side sidewall portions 13 each extending upward from a pair of opposing short side portions of the bottom wall component 11. The long side sidewall portions 12 and the short side sidewall portions 13 extend upward at a slight incline toward the outside of the container body 2. A body side handle portion 14 is provided at the upper portion on the outer surface side of each short side sidewall portion 13, on which fingertips can be hooked when carrying the container body 2.

[0026] 2, the container body 2 of this embodiment includes a first body-side component 15 that mainly constitutes the outer surface side of the container body 2, and a second body-side component 17 that is provided to form a body-side internal space 16 between the first body-side component 15 and mainly constitutes the inner surface side of the container body 2. The first body-side component 15 and the second body-side component 17 are each integrally formed of polypropylene. Furthermore, a heat insulating material 18 is provided in the body-side internal space 16 (for example, the heat insulating material 18 may be formed by filling the body-side internal space 16 with urethane foam and foaming it, or polystyrene foam molded into a predetermined shape may be placed in the body-side internal space 16).

[0027] As shown in Figures 5 to 7, the lid body 5 has a generally rectangular shape in plan view and includes a lid base portion 21 capable of closing the opening 4 of the container body 2, and a generally rectangular frame-shaped support frame portion 22 that protrudes downward from a position displaced a predetermined distance toward the center of the lid base portion 21 from the side edges of the lower surface of the lid base portion 21 along each side of the lower surface of the lid base portion 21. The outer dimensions of the lid base portion 21 when the lid body 5 is viewed in plan view are approximately the same as the outer dimensions of the container body 2 when the container body 2 is viewed in plan view (see Figure 1, etc.), and the outer dimensions of the support frame portion 22 when the lid body 5 is viewed from below are approximately the same as the dimensions of the opening 4 (upper edge portion of the storage portion 3) when the container body 2 is viewed in plan view (see Figure 2). Then, as shown in Figure 2, by placing the lid body 5 over the container body 2, the support frame portion 22 is inserted into the storage portion 3 of the container body 2, and the portion of the underside of the lid base portion 21 that is outer circumferential side of the support frame portion 22 abuts against and is supported by the upper edge portion of the container body 2, and the outer circumferential surface of the support frame portion 22 abuts against or comes into close proximity to the inner surfaces of the side wall portions 12, 13 of the container body 2.

[0028] As shown in FIG. 1 and other figures, the lid body 5 is provided with stacking projections 23 that project upward from the upper surface of the lid base portion 21 along each side edge of the upper surface of the lid base portion 21. By stacking the containers 1 vertically, the lower surface of the container body 2 of the upper container 1 is supported by abutting against the lid base portion 21 of the lid body 5 of the lower container 1, and the lower portion of the outer circumferential surface of the container body 2 of the upper container 1 is abutted against or close to the inner circumferential surface of the stacking projections 23 of the lower container 1. Furthermore, as shown in FIG. 6 and other figures, the back side of the lid body 5 is provided with a lid body side handle portion 24 that is formed in a concave shape in an area including the center of each short side edge of the lid body 5 and slightly separated from the support frame portion 22, and on which fingertips can be hooked when attaching or detaching the lid body 5 to or from the container body 2. In addition, as shown in Figure 5, etc., a recess is formed in the stacking protrusion 23 on the surface side of the lid body 5 corresponding to the formation range of the lid body side handle portion 24, and an inverted handle portion 25 is provided on which the fingertips can be hooked when lifting the lid body 5 installed upside down with the surface of the lid body 5 in contact with the installation surface.

[0029] As shown in Figs. 2 and 11, the lid body 5 includes a lid-side first component 26 that mainly constitutes the front surface side of the lid body 5 (the outer surface side of the container 1), and a lid-side second component 28 that is provided to form a lid-side internal space 27 between the lid-side first component 26 and mainly constitutes the back surface side of the lid body 5 (the side of the storage section 3 of the container 1). The lid-side first component 26 and the lid-side second component 28 are each integrally formed of polypropylene. Furthermore, a heat insulating material 29 is provided in the lid-side internal space 27 (for example, the heat insulating material 29 may be formed by filling the lid-side internal space 27 with urethane foam and foaming it, or polystyrene foam molded into a predetermined shape may be placed in the lid-side internal space 27).

[0030] 3, 11, etc., the lid body 5 of this embodiment is provided with an installation section 32 in which ice packs 31, which serves as an environmentally adaptive material, can be installed on the back side of the lid body 5 that is disposed on the storage section 3 side of the container 1, and a holding mechanism 33 as holding means capable of holding the ice packs 31 installed in the installation section 32 on the back side of the lid body 5. In this embodiment, the area on the inner periphery side of the support frame 22 on the lower surface (back surface) of the lid base 21 corresponds to the installation section 32.

[0031] As shown in FIG. 4 and other figures, the ice pack 31 includes an ice pack main body 35 having a flat, substantially rectangular parallelepiped shape, and mounting pieces 36 protruding laterally from each of the short side surfaces of the ice pack main body 35. Furthermore, a surface of the ice pack main body 35 that faces the installation section 32 and is in a state of abutment or proximity (hereinafter referred to as the "abutment surface 37") is provided with an ice pack recess 38 extending over the entire short width direction of the ice pack main body 35 in a range including the center of the long width direction of the ice pack main body 35. In addition, two mounting pieces 36 are provided on each of the short side surfaces of the ice pack main body 35 in this embodiment, and the two mounting pieces 36 provided on each short side surface are adjacent to the abutment surface 37 of the short side surface of the ice pack main body 35, and are provided so as to be separated from the long side side surface of the ice pack main body 35 and so as to be separated from each other. The shapes of the contact surface 37 and the surface opposite to the contact surface 37 of the ice pack 31 when viewed from the front are point-symmetrical about the center of the ice pack 31, and are also line-symmetrical about the center line of the ice pack 31 in the longitudinal width direction and the center line of the ice pack 31 in the lateral width direction, respectively.

[0032] 3, 12, etc., in this embodiment, the ice pack 31 is placed in the installation section 32 such that the longitudinal width direction of the ice pack 31 extends in the lateral width direction of the lid body 5 (installation section 32). Furthermore, in this embodiment, two ice packs 31 can be placed in the installation section 32 side by side at a predetermined distance from each other in the longitudinal width direction of the lid body 5 (installation section 32).

[0033] As shown in Figures 11 to 13, the holding mechanism 33 is provided on one (hereinafter referred to as the "first side portion 5a") of a pair of long side portions of the lid body 5 (lid base portion 21) and is configured by a slide member 41 that is slidable between a holding position for holding the ice pack 31 placed in the installation portion 32 and a release position for releasing the held state of the ice pack 31 placed in the installation portion 32, parallel to the back surface of the lid body 5, and a recessed holding portion 42 provided on the other (hereinafter referred to as the "second side portion 5b") of the pair of long side portions of the lid body 5 (lid base portion 21).

[0034] More specifically, as shown in Fig. 6, Fig. 8, Fig. 9, Fig. 11, etc., a portion of the support frame 22 extending along the first side portion 5a (hereinafter referred to as "first support portion 43") is provided with a general portion 44 having a substantially U-shaped cross section, and a slide support portion 45 that supports the slide member 41 so as to be slidably displaceable. The slide support portion 45 is configured in such a shape that the lower portion of the outer wall portion, the inner wall portion, and the lower wall portion of the first support portion 43 are displaced inwardly of the space so as to narrow the space formed inside the first support portion 43 compared to the general portion 44, and is provided with support rail portions 46 that protrude horizontally from the outer peripheral surface of the support frame 22 and the inner peripheral surface of the support frame 22, respectively, and extend along the extension direction of the first support portion 43. 9, a locking groove 47 extending along the extension direction of the first support portion 43 is provided on the lower surface of the slide support portion 45, and a portion including both end portions of the locking groove 47 forms a locking recess 48 that is deeper than the intermediate position of the locking groove 47. As shown in FIG. 6 etc., in this embodiment, the slide support portions 45 are provided in two locations on the first support portion 43 (the general portion 44 is interposed between the two slide support portions 45).

[0035] As shown in Figs. 10 and 11, the slide member 41 includes a slide body 51 having a substantially U-shaped cross section provided so as to cover a part of the slide support portion 45, slide engagement protrusions 52 each being substantially engaged with each of the support rail portions 46 (see Fig. 8) of the slide support portion 45, and a holding protrusion 53 protruding from a lower portion of the surface of the slide body 51 on the inner periphery side (the installation portion 32 side) of the support frame portion 22 toward the inner periphery side of the support frame portion 22. By each of the slide engagement protrusions 52 being substantially engaged with each of the support rail portions 46, the relative displacement of the slide member 41 with respect to the slide support portion 45 toward the lower side, the outer periphery side of the support frame portion 22, and the inner periphery side of the support frame portion 22 is restricted, and the slide member 41 is attached to the slide support portion 45 in such a manner that a relative displacement (sliding displacement) within a predetermined range (within the range of the slide support portion 45) in the extension direction of the first support portion 43 (the longitudinal width direction of the lid body 5) is permitted. Furthermore, two holding protrusions 53 are provided at a predetermined distance from each other in the extending direction of the first support portion 43 (the sliding direction of the slide member 41).

[0036] 10(b) and 11, a locking protrusion 54 is provided on the inside of the slide body 51 to be inserted into the locking groove 47 (see FIG. 9) of the slide support part 45 when the slide member 41 is attached. The locking protrusion 54 is inserted into the locking groove 47, so that the sliding displacement of the slide member 41 is more stable, and the locking protrusion 54 is inserted into the locking recesses 48 provided at both ends of the locking groove 47, so that the sliding displacement of the slide member 41 is simply prevented (the locking protrusion 54 is released from the locking recesses 48 by applying a certain amount of force, so that the slide member 41 can slide). The slide member 41 attached to the slide support part 45 is configured so as not to protrude downward from the general part 44 of the first support part 43 or to the outer periphery of the support frame part 22.

[0037] 3, 11, 12, etc., in this embodiment, the slide members 41 are attached to the slide support parts 45 provided at two locations on the first support part 43. Hereinafter, one of the slide members 41 (the slide member 41 on the left side in FIGS. 12 to 15 which are bottom views of the cover body 5 and in which the first side part 5a is disposed on the upper side of the paper relative to the installation part 32) will be referred to as the "first slide member 41a," and the other slide member 41 (the slide member 41 on the right side in FIGS. 12 to 15) will be referred to as the "second slide member 41b."

[0038] 7, 11, etc., the recessed holding portion 42 is provided in a portion of the support frame 22 extending along the second side portion 5b (hereinafter referred to as the "second support portion 61") so as to open to the installation portion 32 side (the inner peripheral side of the support frame 22), and is configured so that the attachment piece 36 (see Figs. 4 and 16(b)) of the ice pack 31 can be inserted therein. The attachment piece 36 inserted into the recessed holding portion 42 is restricted (retained) from relative displacement downward, and the relative displacement in the sliding direction of the slide member 41 is restricted as described later.

[0039] In addition, the recess retaining portions 42 in this embodiment are provided at four locations spaced a predetermined distance from each other in the extension direction of the second support portion 61, and the recess retaining portions 42 provided near both ends of the second support portion 61 (hereinafter referred to as "first recess retaining portions 42a") are configured to have a width slightly wider than the width of the mounting piece 36, and the two recess retaining portions 42 provided near the center of the second support portion 61 (the center of the longitudinal width direction of the cover body 5) (hereinafter referred to as "second recess retaining portions 42b") are configured to be wider than the first recess retaining portions 42a.

[0040] In this embodiment, the holding mechanism 33 is configured to be able to hold two ice packs 31 on the left and right sides of the installation section 32, and is also configured to be able to hold one ice pack 31 placed at the center of the installation section 32. In addition, to hold one ice pack 31, two recessed holding sections 42 are used for each ice pack 31. More specifically, as the arrangement of the ice pack 31 on the installation section 32, as shown in Figs. 12 and 13, a first arrangement is possible in which the ice pack 31 (attachment piece 36) is held using the first recessed holding section 42a and the second recessed holding section 42b of the recessed holding section 42, and as shown in Figs. 14 and 15, a second arrangement is possible in which the ice pack 31 (attachment piece 36) is held using a pair of second recessed holding sections 42b of the recessed holding section 42. When two ice packs 31 are installed in the installation section 32, the ice packs 31 are each configured to be in the first arrangement. On the other hand, when one ice pack 31 is placed in the center of the placement section 32, the ice pack 31 is placed in the second arrangement.

[0041] 12 and other drawings, the ice pack 31 in the first arrangement has a pair of mounting pieces 36 on the first side edge portion 5a (first support portion 43) side of the ice pack 31 held by a pair of holding protrusions 53 of the first slide member 41a and a pair of holding protrusions 53 of the second slide member 41b (the holding protrusions 53 are arranged to be located below the mounting pieces 36). In this embodiment, the first slide member 41a holding the ice pack 31 in the first arrangement is located on the short side edge portion side of the cover body 5 within the sliding range of the first slide member 41a, and the second slide member 41b holding the ice pack 31 in the first arrangement is located on the short side edge portion side of the cover body 5 within the sliding range of the second slide member 41b (the distance between the first slide member 41a and the second slide member 41b is maximized). Hereinafter, the state in which the first slide member 41a and the second slide member 41b respectively hold different ice packs 31 is referred to as an "individual holding state." That is, in this embodiment, the position of the ice packs 31 in the first arrangement corresponds to an "individual installation position" in which the ice packs 31 are held by only one of the first slide member 41a and the second slide member 41b.

[0042] On the other hand, as shown in FIG. 14 etc., with respect to the ice pack 31 in the second arrangement, one of the pair of mounting pieces 36 on the first side edge portion 5a (first support portion 43) side of the ice pack 31 is held by the holding protrusion 53 of the first slide member 41a, and the other is held by the holding protrusion 53 of the second slide member 41b. In this embodiment, the first slide member 41a holding the ice pack 31 in the second arrangement is located on the central side of the longitudinal width direction of the lid body 5 within the sliding range of the first slide member 41a, and the second slide member 41b holding the ice pack 31 in the second arrangement is located on the central side of the longitudinal width direction of the lid body 5 within the sliding range of the second slide member 41b (the distance between the first slide member 41a and the second slide member 41b approaches a maximum). Hereinafter, the state in which the first slide member 41a and the second slide member 41b hold one common ice pack 31 is referred to as a "jointly held state." That is, in this embodiment, the position of the ice pack 31 in the second arrangement corresponds to a "jointly installed position" in which the ice pack 31 is held by both the first slide member 41a and the second slide member 41b.

[0043] As described above, the width of the first recessed holding portion 42a is slightly wider than the width of the mounting piece 36 of the ice pack 31, and the mounting piece 36 inserted (held) in the first recessed holding portion 42a is restricted by the first recessed holding portion 42a in its relative displacement in the lateral vibration direction (the left-right direction of the paper in Figure 12; in this embodiment, the sliding direction of the slide member 41) which intersects with the insertion direction of the mounting piece 36 of the ice pack 31 into the recessed holding portion 42 (first recessed holding portion 42a) and extends parallel to the rear surface of the lid body 5. Furthermore, the width of the second recessed holding portion 42b is wider than the width of the first recessed holding portion 42a, and the second recessed holding portion 42b restricts the relative displacement of the attachment piece 36 inserted (held) in the second recessed holding portion 42b toward one of the side approaching the first recessed holding portion 42a and the side moving away from the first recessed holding portion 42a in the sliding direction of the slide member 41. In this embodiment, when the ice pack 31 is in the individual installation position (first arrangement), the second recessed holding portion 42b restricts the displacement of the attachment piece 36 inserted (held) in the second recessed holding portion 42b toward the side approaching the first recessed holding portion 42a (the short side portion of the lid 5) by the second recessed holding portion 42b. When the ice pack 31 is in the common installation position (second arrangement), the attachment piece 36 inserted (held) in the second recessed holding portion 42b is restricted by the second recessed holding portion 42b from being displaced toward the side away from the first recessed holding portion 42a (the center side in the longitudinal width direction of the lid 5). Furthermore, the two attachment pieces 36 provided on the short side surface of the ice pack 31 on the second side edge portion 5b side are inserted into different second recessed holding portions 42b, and the displacement toward the side away from the first recessed holding portion 42a is restricted for the ice pack 31 as a whole in the sliding direction of the slide member 41, so that the displacement of the attachment pieces 36 toward both the side approaching the first recessed holding portion 42a and the side away from the first recessed holding portion 42a is restricted.

[0044] 4, 12, and 14, in this embodiment, the position of the attachment piece 36 inserted into the second recessed holding portion 42b when the ice pack 31 is in the individual installation position (first arrangement) is different from the position of the attachment piece 36 inserted into the second recessed holding portion 42b when the ice pack 31 is in the common installation position (second arrangement), but the second recessed holding portion 42b is configured to be wide so that it can be inserted into the common second recessed storage portion 3. In other words, the second recessed holding portion 42b used when the ice pack 31 is in the first arrangement and the predetermined second recessed holding portion 42b used when the ice pack 31 is in the second arrangement are provided in a continuous (continuous) manner, and are shared (commonly used) as the recessed holding portion 42 (second recessed holding portion 42b) used when the ice pack 31 is in both the individual installation position (first arrangement) and the common installation position (second arrangement).

[0045] As described above, the holding position and the release position of the slide member 41 change (reverse) depending on whether the ice pack 31 is in the individual installation position (first arrangement) or the common installation position (second arrangement). In this embodiment, when the ice pack 31 to be held is in the individual installation position (first arrangement), the position where the slide member 41 is moved toward the short side edge of the lid body 5 is the holding position, and the position where the slide member 41 is moved toward the center of the longitudinal width direction of the lid body 5 is the release position. On the other hand, when the ice pack 31 to be held is in the common installation position (second arrangement), the position where the slide member 41 is moved toward the center of the longitudinal width direction of the lid body 5 is the holding position, and the position where the slide member 41 is moved toward the short side edge of the lid body 5 is the release position. In other words, the first slide member 41a and the second slide member 41b are displaced from an arrangement corresponding to the individual holding state of the holding mechanism 33 to an arrangement corresponding to the joint holding state of the holding mechanism 33 by bringing the first slide member 41a and the second slide member 41b closer to each other.

[0046] When removing the ice pack 31 held by the holding mechanism 33, first, as shown in Fig. 12 and Fig. 16(c), the lid body 5 is installed with the back surface facing upward, and the slide member 41, which is in the holding position holding the attachment piece 36 of the ice pack 31 by the holding protrusion 53, is displaced to the release position as shown in Fig. 13 (see the first slide member 41a on the left side of the paper) and Fig. 16(b). Next, as shown in Fig. 16(a), the ice pack 31 is rotated and displaced around the attachment piece 36 held by the recess holding portion 42 of the ice pack 31 to the side that separates the ice pack 31 from the installation portion 32. In this manner, the ice pack 31 is configured to be removable from the lid body 5. In addition, among the portions of each recessed holding portion 42 that define the lower surface thereof (portions that prevent the downward displacement of the mounting piece 36 and thus the falling off of the ice pack 31), the portion on the opening side (the installation section 32 side) of the recessed holding portion 42 is inclined downward toward the opening side. This suppresses interference between the mounting piece 36 and the recessed holding portion 42 when attaching and detaching the ice pack 31, improving workability and suppressing damage to the mounting piece 36 and the recessed holding portion 42. Also, as shown in Figures 2, 3, and 16(b), the lower surface side of the ice pack 31 attached to the lid body 5 is almost entirely exposed to the storage section 3 of the container body 2 except for the mounting piece 36, and the lower end of the ice pack 31 is located lower than the lower end of the lid body 5.

[0047] In addition, as shown in Fig. 6 etc., the lid body 5 has an anti-rattle protrusion 62 that protrudes downward from a position of the installation section 32 that is a predetermined distance away from the first support section 43 and the second support section 61 and is inserted relatively into the ice pack recess 38 of the ice pack 31 installed in the installation section 32. The anti-rattle protrusion 62 extends so as to connect between portions of the support frame section 22 that extend along each short side edge of the lid body 5, and the width of the anti-rattle protrusion 62 in the short width direction of the lid body 5 is slightly narrower than the width of the ice pack recess 38 (see Fig. 4(b)) in the long width direction of the ice pack 31. Therefore, as shown in Figure 16 (b), by installing the ice pack 31 in the installation section 32, the ice pack recess 38 approximately fits into the anti-rattle protrusion 62, and the ice pack 31 is restricted in its relative displacement in a direction intersecting the sliding direction of the slide member 41 so as to be parallel to the back surface of the lid body 5 (the short width direction of the lid body 5, for example, a direction in which the mounting piece 36 comes out of the upper position of the retaining protrusion 53 of the slide member 41 or the recess retaining section 42, and the retaining state of the slide member 41 by the retaining mechanism 33 is released). In other words, the ice pack 31 held by the holding mechanism 33 is restricted in relative downward displacement of one of the short sides of the ice pack 31 and in the longitudinal width direction of the lid body 5 by the recessed holding portion 42, in relative displacement of the ice pack 31 in the transverse width direction of the lid body 5 (including rotational displacement along the back surface of the lid body 5) by the anti-rattle protrusion 62, and in relative downward displacement of the other short side of the ice pack 31 by the sliding member 41, so that the relative displacement of the ice pack 31 as a whole in all directions relative to the lid body 5 is restricted.

[0048] In addition, although not shown, the lid body 5 is provided with a first mark (provided at a position on the slide support portion 45 that is exposed in the state shown in Figure 14) on the underside of the slide support portion 45 when the holding mechanism 33 is in an individual holding state, and is covered by the first slide member 41a and the second slide member 41b (respectively moved toward the short side edge portion of the lid body 5) when the holding mechanism 33 is in an individual holding state, and is exposed so as to be visible from the back side of the lid body 5 when the holding mechanism 33 is in a jointly held state, and a second mark (provided at a position on the slide support portion 45 that is exposed in the state shown in Figure 12) which is covered by the first slide member 41a and the second slide member 41b (respectively moved toward the central portion of the longitudinal width direction of the lid body 5) when the holding mechanism 33 is in a jointly held state, and is exposed so as to be visible from the back side of the lid body 5 when the holding mechanism 33 is in an individual holding state. In this embodiment, for example, the first mark is formed with the text "If two units are installed, move here," and the second mark is formed with the text "If one unit is installed, move here." Note that the first mark and the second mark are formed simultaneously with the molding of the lid-side second component part 28 by, for example, appropriately making the lower surface of the slide support part 45 uneven.

[0049] As described above in detail, according to this embodiment, the installation section 32 on which the ice pack 31 can be installed and the holding mechanism 33 capable of holding the ice pack 31 are provided on the back side of the lid body 5, and the function of the ice pack 31 can be effectively exerted on the back side of the lid body 5 (the effect of the installation of the ice pack 31 can be effectively exerted on the storage section 3 side of the container 1) without causing a decrease in the functions (thermal insulation, airtightness, etc.) of the lid body 5. In addition, the holding mechanism 33 has a slide member 41, and the ice pack 31 can be attached and detached with a relatively simple operation. Therefore, the ice pack 31 can be attached and detached relatively easily while ensuring thermal insulation and airtightness (when the opening 4 of the container 1 is closed). Furthermore, when the ice pack 31 is attached or detached in a state where the lid body 5, which is detachable from the container body 2, is removed from the container body 2, the surface of the lid body 5 is grounded on the installation surface such as a table or the ground, and the back side is not grounded. Therefore, compared to a configuration in which the back side of the lid 5 must be grounded when attaching or detaching the ice pack 31, the sanitation of the storage section 3 of the container 1 can be improved.

[0050] In addition, the slide member 41 is configured to be slidable in parallel with the rear surface of the lid body 5, and can more reliably prevent the state in which the ice pack 31 is held from being released when a downwardly displacing force acts on the ice pack 31, compared to, for example, a case in which a protruding and retracting member displaced in the vertical direction is used as the holding mechanism 33 instead of the slide member 41. Furthermore, for example, compared to, for example, a rotating member that is displaced in a rotating manner is used as the holding mechanism 33 instead of the slide member 41, the area and arrangement of the portion (holding protrusion 53) that holds the ice pack 31 by one slide member 41 can be suitably set, and the area of ​​the portion (slide engagement protrusion 52, support rail portion 46) that prevents the slide member 41 from falling off the lid body 5 can be secured as wide as possible. Therefore, for example, when a downward force acts on the ice pack 31 during opening / closing of the lid 5 or loading / unloading of the container 1, it is possible to more reliably prevent the ice pack 31 from falling off the holding mechanism 33 (damage to the slide member 41) and the holding mechanism 33 (slide member 41) from falling off the lid 5. Therefore, even in a configuration in which the ice pack 31 is installed on the back side of the lid 5, the ice pack 31 can be securely held, making it possible to transport the items contained in the container 1 more safely, and allowing workers to open / close the lid 5 and load / unload the container 1 with peace of mind.

[0051] In addition, the first slide member 41a and the second slide member 41b are provided on the first side portion 5a side (first support portion 43) of the lid body 5, and the holding mechanism 33 is configured to be able to change between an individual holding state in which different ice packs 31 are held by the first slide member 41a and the second slide member 41b, and a common holding state in which one common ice pack 31 is held by the first slide member 41a and the second slide member 41b. Therefore, the number of ice packs 31 installed can be changed (two in the individual holding state, one in the common holding state) according to the purpose (item to be stored in the container 1), and the position of the ice pack 31 can be changed (a position between the first slide member 41a and the second slide member 41b in the common holding state, and a position corresponding to the first slide member 41a and the second slide member 41b in the individual holding state). Therefore, it is possible to use it in a variety of ways.

[0052] Furthermore, the first slide member 41a and the second slide member 41b are configured to be displaced from an arrangement corresponding to the individual holding state of the holding mechanism 33 so as to bring the first slide member 41a and the second slide member 41b closer to each other, thereby being arranged to correspond to the common holding state of the holding mechanism 33. For this reason, the image of the goal of holding one common ice pack 31 by the first slide member 41a and the second slide member 41b is easily matched with the image of the operation of bringing the first slide member 41a and the second slide member 41b closer to each other, and the operation of appropriately attaching and detaching the ice pack 31 can be performed relatively smoothly without confusing the worker.

[0053] In addition, the cover body 5 includes a first mark that is covered by the first slide member 41a and the second slide member 41b when the holding mechanism 33 is in the individual holding state, and is exposed so as to be visible from the back side of the cover body 5 when the holding mechanism 33 is in the common holding state, and a second mark that is covered by the first slide member 41a and the second slide member 41b when the holding mechanism 33 is in the common holding state, and is exposed so as to be visible from the back side of the cover body 5 when the holding mechanism 33 is in the individual holding state. Therefore, it is possible to relatively easily convey to an operator where the slide member 41 needs to be displaced in order to put the holding mechanism 33 in the individual holding state and the common holding state.

[0054] The holding mechanism 33 is provided with a recessed holding portion 42 capable of holding the attachment piece 36 of the ice pack 31 on the second side 5b (second support portion 61) of the lid 5. The ice pack 31 can be removed by displacing the slide member 41 holding the ice pack 31 (the attachment piece 36 on the first side 5a) to a release position from a state in which the ice pack 31 is held by the holding mechanism 33, and rotating the ice pack 31 around the attachment piece 36 held by the recessed holding portion 42 to a side that separates the ice pack 31 from the installation portion 32. For this reason, compared to a configuration in which the ice pack 31 is held by the slide member 41 not only on the first side 5a but also on the second side 5b, for example, it is possible to simplify the configuration for holding the ice pack 31, improve the ease of attaching and detaching the ice pack 31, and stabilize the holding state of the ice pack 31.

[0055] Further, two first recessed holding portions 42a and two second recessed holding portions 42b are provided as the recessed holding portions 42, and at least two recessed holding portions 42 are used to hold one ice pack 31. Furthermore, the portion of the ice pack 31 held by the first recessed holding portion 42a is restricted by the first recessed holding portion 42a from relative displacement in the sliding direction (lateral vibration direction) of the slide member 41, and the portion of the ice pack 31 held by the second recessed holding portion 42b is restricted by the second recessed holding portion 42b from displacement in at least one of the side approaching the first recessed holding portion 42a and the side moving away from the first recessed holding portion 42a in the sliding direction of the slide member 41. In addition, the ice packs 31 can be arranged in the installation section 32 in a first arrangement in which the ice packs 31 are held using the first recessed holding section 42a and the second recessed holding section 42b of the recessed holding section 42, and a second arrangement in which the ice packs 31 are held using only the second recessed holding section 42b, and the second recessed holding section 42b used in the first arrangement of the ice packs 31 and a specified second recessed holding section 42b used in the second arrangement of the ice packs 31 are shared (arranged in one contiguous configuration).

[0056] That is, by using at least the first recessed holding portion 42a when holding the ice pack 31, the relative displacement (positional deviation) of the ice pack 31 in the sliding direction of the slide member 41 is prevented, and the holding state of the ice pack 31 can be stabilized. In addition, by using two second recessed holding portions 42b when holding the ice pack 31, the relative displacement of the ice pack 31 in the sliding direction of the slide member 41 is also prevented. Therefore, in a configuration that can hold the ice pack 31 in different arrangements, the recessed holding portion 42 can be suitably arranged while imparting the function of preventing the positional deviation in the sliding direction of the slide member 41 to the recessed holding portion 42. In addition, the second recessed holding portion 42b is configured such that the second recessed holding portion 42b used in the first arrangement of the ice pack 31 and the predetermined second recessed holding portion 42b used in the second arrangement are continuous, and therefore the complication of the configuration of the recessed holding portion 42 can be suppressed. Furthermore, the position of the attachment piece 36 inserted into the second recessed holding portion 42b of the ice pack 31 in the first arrangement is offset from the position of the attachment piece 36 inserted into the second recessed holding portion 42b of the ice pack 31 in the second arrangement, and the second recessed holding portion 42b into which the attachment pieces 36 can be inserted is configured as a single piece, thereby forming a wide second recessed holding portion 42b. This makes it possible to improve the workability when installing the ice pack 31 in the installation portion 32 (inserting the attachment piece 36 into the recessed holding portion 42).

[0057] In addition, a rattle-stopping protrusion 62 is provided to regulate the relative displacement of the ice pack 31 placed in the installation section 32 in the short-side width direction of the lid body 5. This prevents the ice pack 31 from being displaced relative to the installation section 32 in a direction that would cause the ice pack 31 to be released from the installation section 32 (or the area supporting the mounting piece 36 by the installation section 32 is reduced, making the ice pack 31 more likely to be released from the installation section 32), and the ice pack 31 can be held more stably. Furthermore, the ice pack 31 can be prevented from being displaced in a direction that presses against the slide member 41, and deformation or damage to the slide member 41 can be suppressed. In particular, by providing the rattle-stopping protrusion 62 and the recessed portion 42, the slide member 41 can reliably hold the ice pack 31 as a whole by simply preventing the ice pack 31 from being displaced downward (falling into the storage section 3 of the container 1). Therefore, the operational effect of improving the ease of attaching and detaching the ice pack 31 while suppressing the complexity of the slide member 41 and the like is more remarkable.

[0058] The present invention is not limited to the above-described embodiment, and may be implemented as follows: Of course, other applications and modifications not exemplified below are also possible.

[0059] (a) In the above embodiment, the container 1 is embodied in a lid body 5 that is detachable from the container body 2. However, the container may be embodied in a lid body 5 that is rotatably connected to the container body 2 (for example, a connecting member that includes an axis portion for the container body 2 and an axis portion for the lid body 5 and connects the lid body 5 to the container body 2 so as to be rotatably displaceable). For example, when the first side portion 5a is disposed as a side portion on the rotation axis side of the lid body 5 and the lid body 5 is rotated and displaced by about 270 degrees from the closed position to be extended in a substantially vertical direction, a slide member 41 is disposed on the upper portion of the lid body 5 and a recessed portion holding portion 42 is disposed on the lower portion of the lid body 5, so that the ice pack 31 does not fall off the installation portion 32 by the recessed portion holding portion 42 even when the slide member 41 is in the released position. In this case, the ease of attaching and removing the ice pack 31 is improved.

[0060] (b) In the above embodiment, a maximum of two ice packs 31 can be installed in the installation section 32, but a maximum of one ice pack may be installed, or a maximum of three or more ice packs may be installed. Even when adopting this configuration, it is preferable to configure the arrangement of the ice packs 31 to be held by appropriately changing the recessed holding section 42 used for holding and the slide member 41. Also, it is possible to configure the installation section 32 to be able to hold a plurality of types of ice packs 31 with different shapes and sizes. Furthermore, the formation position, number, shape, etc. of the holding mechanism 33 can be appropriately changed according to the ice packs 31 to be installed. For example, two lids 5 of the above embodiment may be prepared and connected so that the second side portions 5b are butted against each other to form a lid that can hold a maximum of four ice packs 31. In addition, the second side portion 5b of the lid 5 may also be configured to hold the attachment piece 36 of the ice pack 31 by the slide member 41 instead of the recessed holding section 42. The direction of sliding movement of the slide member 41 may basically be a direction parallel to the back surface of the lid body 5, and may be configured to be slidably displaceable in a direction intersecting the longitudinal width direction of the lid body 5. However, it is preferable that the slide member 41 be slidably displaceable in a predetermined linear direction to stabilize the mounting state to the lid body 5, and further, it is preferable that the slide member 41 be slidably displaceable in a direction parallel to the side portion of the ice pack 31 on which the mounting piece 36 is provided to appropriately position the installation space (slide support portion 45) of the slide member 41.

[0061] (c) The installation portion 32 of the lid body 5 may be provided with a first auxiliary mark (not covered by the ice pack 31 in the common installation position (second arrangement)) that is covered (at least partially, more preferably entirely) by the ice pack 31 in the individual installation position (first arrangement) when the holding mechanism 33 is in the individual holding state, and that is exposed so as to be visible (preferably entirely) from the back side of the lid body 5 when the holding mechanism 33 is in the common holding state, and a second auxiliary mark (not covered by the ice pack 31 in the individual installation position (first arrangement)) that is covered (at least partially, more preferably entirely) by the ice pack 31 in the common installation position (second arrangement) when the holding mechanism 33 is in the common holding state, and that is exposed so as to be visible (preferably entirely) from the back side of the lid body 5 when the holding mechanism 33 is in the individual holding state. For example, when ice packs 31 are placed individually (first arrangement), the letters "If two ice packs are installed, place here" may be formed in a position covered by ice packs 31 (a position not covered when ice packs 31 are placed together or in the second arrangement), and a line imitating the outer shape of ice packs 31 (indicating the orientation of ice packs 31) may be formed surrounding the letters, and when ice packs 31 are placed together (second arrangement), the letters "If one ice pack is installed, place here" may be formed in a position covered by ice packs 31 (a position not covered when ice packs 31 are placed individually or in the first arrangement), and a line imitating the outer shape of ice packs 31 may be formed surrounding the letters. In this case, it is possible to relatively easily inform the worker of where the ice pack 31 needs to be placed in order to hold the ice pack 31 with the holding mechanism 33 in the individual holding state and the common holding state, and it is possible to more easily inform the worker of where the slide member 41 needs to be displaced in order to put the holding mechanism 33 in the individual holding state and the common holding state. Note that the form of the first mark, the second mark, the first auxiliary mark, and the second auxiliary mark is not particularly limited, and characters other than those exemplified may be used, a specific color scheme, pattern, or the like may be used to suggest the placement of the ice pack 31, or the marks may be provided by attaching a sticker or printing in a process subsequent to the molding process of the lid-side second component portion 28.

[0062] (d) Furthermore, the configuration of anti-rattle protrusion 62 is not particularly limited. For example, in a lid body capable of mounting an ice pack having a shape in which ice pack recess 38 is omitted, the anti-rattle protrusion may be provided so as to abut or be positioned adjacent to a predetermined portion of the outer peripheral surface of the ice pack when mounted on the lid body, or the ice pack recess may be configured so as to have a circular or rectangular concave shape in a plan view and the anti-rattle protrusion is configured so as to be capable of being inserted into it (so that the anti-rattle protrusion also regulates the relative displacement of the ice pack in the sliding direction of slide member 41).

[0063] Furthermore, for example, in a lid body 5 capable of mounting an ice pack 31 in which an attachment piece 36 is provided on each short side of an ice pack main body 35, the recessed holding portion 42 may be provided in a one-to-one correspondence with a slide member 41. In addition, for example, in a lid body 5 capable of mounting an ice pack 31 in which an attachment piece 36 is omitted, a configuration may be provided that includes a recessed holding portion into which one short side of the ice pack main body 35 can be inserted, and a slide member capable of holding a portion of the lower surface of the ice pack main body 35 on the other short side side. Note that with respect to the recessed holding portion 41, it is also possible to omit the function of preventing the relative displacement of the ice pack 31 in the sliding direction of the slide member 41.

[0064] (e) In the above embodiment, the container 1 (the first body-side component 15, the second body-side component 17, the first lid-side component 26, and the second lid-side component 28) are made of polypropylene, but may be made of other resin materials such as polyethylene, PET, polyamide, etc. Also, in the above embodiment, in order to improve the heat insulation performance (cold insulation and heat insulation performance), the container body 2 and the lid body 5 are made to have a hollow two-layer structure, and the heat insulating materials 18, 29 are provided in the body-side internal space 16 and the lid-side internal space 27, but the heat insulating materials 18, 29 may be omitted, the container body 2 and the lid body 5 may be made to have a single-layer structure or a structure of three or more layers, or the layer structure may be partially changed (for example, most of the container is two layers and some is single layer). Furthermore, in the above embodiment, the container 1 is formed in a substantially square box shape, but it is also possible to embody it as a container having a substantially cylindrical shape, a substantially semicircular shape in a plan view (a front corner part is relatively largely rounded), etc. In addition, in the above embodiment, the cold insulation material 31 (cold storage material) is used as the environmentally adaptive material, but a heat insulation material (heat storage material), a desiccant that keeps the storage section 3 at a desired humidity, or the like may also be used. [Explanation of symbols]

[0065] 1...container, 2...container body, 3...storage section, 4...opening, 5...lid body, 5a...first side edge portion, 5b...second side edge portion, 22...support frame portion, 31...ice pack, 32...installation section, 33...retaining mechanism, 36...mounting piece, 37...contact surface, 38...ice pack recess, 41...slide member, 41a...first slide member, 41b...second slide member, 42...recess holding portion, 42a...first recess holding portion, 42b...second recess holding portion, 53...holding protrusion, 62...anti-rattle protrusion.

Claims

1. A lid for opening and closing an opening of a container, a mounting portion on a back side of the lid that is disposed on the side of the container housing, where an environmentally adaptive material can be mounted; a holding means for holding the environmentally adaptive material placed on the placement section on the back side of the lid, The lid body is characterized in that the holding means is provided with a sliding member that is slidable between a holding position that holds the environmentally adaptive material placed on the installation section and a release position that releases the held state of the environmentally adaptive material placed on the installation section, parallel to the back surface of the lid body.

2. At least a first slide member and a second slide member are provided as the slide members on a first side edge side of the side edge portion of the lid body, The holding means is an individual holding state in which the first slide member and the second slide member each hold different environmental adaptive materials; The lid body according to claim 1, characterized in that the first slide member and the second slide member are configured to be able to change their states to a common holding state in which they hold a common environmentally adaptive material.

3. The lid body described in claim 2, characterized in that the first slide member and the second slide member are displaced from an arrangement corresponding to the individual holding state to an arrangement corresponding to the joint holding state by bringing the first slide member and the second slide member closer to each other.

4. The lid body is a first mark that is covered by the first slide member and the second slide member when the holding means is in the individual holding state, and that is exposed so as to be visible from the back side of the lid body when the holding means is in the common holding state; The lid body described in claim 3, characterized in that it is provided with a second mark that is covered by the first slide member and the second slide member when the holding means is in the joint holding state, and is exposed so as to be visible from the back side of the lid body when the holding means is in the individual holding state.

5. the holding means includes a recessed holding portion capable of holding a portion of the environmentally adaptive material on the side of the target; The lid body according to claim 1 or 2, characterized in that the environmentally adaptive material is configured to be removable by displacing the sliding member holding the environmentally adaptive material to the release position from a state in which the environmentally adaptive material is held by the holding means, and rotating the environmentally adaptive material away from the installation portion around a portion of the environmentally adaptive material on the side of the side edge portion held by the recess holding portion.

6. the holding means is configured to be capable of holding a plurality of environmentally adaptive materials placed on the installation section, and is configured to be capable of holding a predetermined number of environmentally adaptive materials placed on the installation section in different arrangements; As the recessed portion holding portion, a first recessed portion holding portion and a second recessed portion holding portion are provided, and at least two of the recessed portion holding portions are used to hold one environmentally adaptive material; A portion of the environmental adaptive material held by the first recessed portion holding portion is restricted in relative displacement in a lateral vibration direction that intersects with a direction in which the environmental adaptive material is inserted into the recessed portion and extends parallel to a rear surface of the lid body by the first recessed portion holding portion, A portion of the environmentally adaptive material held by the second recessed portion retaining portion is restricted by the second recessed portion retaining portion from relative displacement in the lateral vibration direction toward at least one of a side approaching the first recessed portion retaining portion and a side moving away from the first recessed portion retaining portion, As a disposition of the environmental adaptive material on the installation section, a first disposition in which the first recessed holding portion and the second recessed holding portion are used to hold the environmental adaptive material, and a second disposition in which only two or more of the second recessed holding portions are used to hold the environmental adaptive material are configured to be possible; The lid body according to claim 5, characterized in that the second recess retaining portion used when the environmentally adaptive material is in the first position and the specified second recess retaining portion used when the environmentally adaptive material is in the second position are provided in a continuous manner.

7. The lid body as described in claim 1, characterized in that it is provided with an anti-rattle protrusion that regulates relative displacement in a direction in which the holding state of the environmentally adaptive material placed on the installation portion by the holding means is released or is easily released.

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