Containers and shopping baskets

Abstract

To realize a container that can be changed into a compact shape and does not change in shape in an inconvenient manner.SOLUTION: A container (1) according to one embodiment of the present disclosure comprises a belt member (300) connecting a bottom wall constitution part (100) and a second side wall part (200). The belt member (300) restricts the second side wall part (200) from contracting when the second side wall part (200) is in an extended state relative to the bottom wall constitution part (100), and restricts the second side wall part (200) from extending when the second side wall part (200) is in a contracted state relative to the bottom wall constitution part (100).SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a container, and more particularly to a container or shopping basket whose shape can be changed by the expansion and contraction of the side wall.

Background Art

[0002] There are cases where items are placed in a shopping basket at a store or the like, and after purchasing the items at the cash register, they are transferred to a personal basket similar to the shopping basket and taken home. This is one method alternative to putting them in a plastic bag and taking them home.

[0003] For example, Patent Document 1 discloses an eco-basket that allows shopping by putting a store basket into one's own (personal) basket.

Prior Art Documents

Patent Documents

[0004] [[ID=2५]]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the personal basket disclosed in Patent Document 1 has a problem of being bulky when storing or carrying only the basket without containing items.

[0006] Therefore, one aspect of the present disclosure aims to realize a container or shopping basket that changes to a compact shape when not containing items, and further, a container or shopping basket whose shape does not change inconveniently.

Means for Solving the Problems

[0007] [[ID=५9]] To solve the aforementioned problems, a container according to one aspect of the present disclosure includes a bottom wall component including a substantially plate-shaped bottom plate and a first side wall component extending upward from the peripheral edge of the bottom plate; a second side wall component that is cylindrical and telescopically expands and contracts relative to the bottom wall component; and a belt member that restricts the expansion and contraction movement of the second side wall component.

[0008] A shopping basket according to one aspect of the present disclosure includes a bottom wall component that includes a substantially plate-shaped bottom plate and a first side wall component extending upward from the peripheral edge of the bottom plate; a second side wall component that is cylindrical and telescopically extends and retracts relative to the bottom wall component; and a belt member that restricts the extension and retraction movement of the second side wall component. [Effects of the Invention]

[0009] According to one aspect of this disclosure, it is possible to realize a container or shopping basket that transforms into a compact shape when not containing goods, and furthermore, a container or shopping basket whose shape does not change in an inconvenient manner. [Brief explanation of the drawing]

[0010] [Figure 1] This is a perspective view of a container according to one embodiment of the present invention when it is in an unassembled state. [Figure 2] This is a perspective view of the container according to one embodiment of the present invention when it is in an assembled state. [Figure 3] This is an exploded perspective view of a container according to one embodiment of the present invention, disassembled into its constituent parts and viewed from the top of the container. [Figure 4] This is an exploded perspective view of a container according to one embodiment of the present invention, disassembled into its constituent parts and viewed from the bottom of the container. [Figure 5] This is a perspective view of a belt member, which is one of the components of a container according to one embodiment of the present invention, as seen from the top. [Figure 6] This is a perspective view from the bottom of a belt member, which is one of the components of a container according to one embodiment of the present invention. [Figure 7]This is a partial cross-sectional perspective view of a container according to one embodiment of the present invention when it is in an assembled state. [Figure 8] This is a partially enlarged view showing a portion of the inner surface of the second side wall at the top of the container when the container according to one embodiment of the present invention is in an assembled state. [Figure 9] This is a partially enlarged view of a portion of the outer surface of the first side wall at the bottom of a container when the container according to one embodiment of the present invention is in an assembled state. [Figure 10] This is a partial cross-sectional view of a container according to one embodiment of the present invention when it is in an assembled state. [Figure 11] This is a partial cross-sectional view of a container according to one embodiment of the present invention when it is in an unassembled state. [Figure 12] This is a partial cross-sectional view of the container at the cutting line AA' shown in Figure 11. [Modes for carrying out the invention]

[0011] The following describes in detail a container according to one embodiment of the present invention. The container of this embodiment has an appearance similar to a shopping basket used in stores, and for example, a shopping basket from a store can be placed on top of the container in the storage space defined by the inner surface of the container, and it can be realized in a way that allows goods to be placed in the storage space and carried.

[0012] In particular, the container of this embodiment can change its shape to a compact form when it is not filled with items or a shopping basket, i.e., when it is not filled with items. Furthermore, it is configured so that the shape does not change unfavorably (it does not return to its original form) once it is in this compact form. Below, an example of an embodiment that realizes this configuration will be described. Note that the terms "upper" and "lower" may be used when describing the components below. In this specification, when the container of this embodiment is placed on a horizontal plane with the bottom plate of the bottom wall component horizontal, the direction toward the zenith along the vertical direction is defined as the upper (direction), and the opposite direction is defined as the lower (direction), and these definitions will be used.

[0013] FIG. 1 is an external perspective view of the container 1 of the present embodiment when the container is in a non-assembled state. Here, the "non-assembled state" is a state in which the second side wall portion 200 described later is contracted, and is the form of the container 1 when carrying or storing the container 1 itself. On the other hand, FIG. 2 is an external perspective view of the container 1 when the container 1 is in an assembled state. Here, the "assembled state" is a state in which the accommodation space for putting articles or a shopping basket is assembled, and is a state in which the second side wall portion 200 described later is assembled to the bottom wall component portion 100.

[0014] That is, the container 1 of the present embodiment includes a bottom wall component portion 100 including a substantially plate-shaped bottom plate portion 110 and a first side wall portion 120 extending upward from the peripheral edge of the bottom plate portion 110, and forms a cylindrical body, and a second side wall portion 200 that telescopically extends and contracts with respect to the bottom wall component portion 100. Further, the container 1 includes a belt member 300 that connects the bottom wall component portion 100 and the second side wall portion 200, and restricts the second side wall portion 200 from contracting when the second side wall portion is in a state of extending with respect to the bottom wall component portion 100, and restricts the second side wall portion 200 from extending when the second side wall portion is in a state of contracting with respect to the bottom wall component portion 100.

[0015] Here, FIG. 3 is an exploded perspective view of the container 1 disassembled by each component and viewed from the upper side of the container 1, and FIG. 4 is an exploded perspective view of the disassembled state viewed from the lower side of the container 1.

[0016] The bottom wall component portion 100 is a box-shaped structure including a substantially plate-shaped bottom plate portion 110 and a first side wall portion 120 extending upward from the peripheral edge of the bottom plate portion 110. Since the container of the present embodiment has the same specifications as a so-called shopping basket, a large number of through holes are provided in the bottom wall component portion 100. Further, a first engaged portion 103 and a second engaged portion 105 are provided in the bottom wall component portion 100.

[0017] The first engaged part 103 is the part engaged by the engaging part 305 of the belt member 300. The first engaged part 103 is provided at the boundary between the bottom plate part 110 and the first side wall part 120. In the example shown in FIGS. 1 to 4, the first engaged parts 103 are provided at the middle positions of a pair of short edges of the bottom plate part 110 having a rectangular peripheral edge, respectively. Each first engaged part 103 is a hole penetrating from the inner surface to the outer surface of the bottom wall component 100, into which the engaging part 305 of the belt member 300 can be inserted and fitted. When the container 1 is in the assembled state, the engaging part 305 of a separate belt member 300 (FIG. 5) is engaged with one first engaged part 103 and the other first engaged part 103.

[0018] The second engaged parts 105 are arranged in two rows along a pair of long edges of the bottom plate part 110 having a rectangular peripheral edge at the central part of the bottom plate part 110. When the container is in the unassembled state, the engaging part 305 of a separate belt member 300 (FIG. 5) is engaged with one second engaged part 105 and the other second engaged part 105.

[0019] The first engaged part 103 and the second engaged part 105 are engaged with the engaging part 305 of the belt member 300 when the container 1 takes different forms. Specifically, the engaging part 305 is engaged with the first engaged part 103 when the container 1 is in the assembled state, and is engaged with the second engaged part 105 when the container 1 is in the unassembled state.

[0020] On the upper surface of the bottom plate part 110, further, a rail part 107 (FIGS. 1 and 3) is provided.

[0021] The rail part 107 extends between one second engaged part 105 and the first engaged part 103 provided on the short edge of the rectangular bottom plate part 110 closest to this second engaged part 105. The rail part 107 further extends between the other second engaged part 105 and the first engaged part 103 provided on the short edge of the rectangular bottom plate part 110 closest to this second engaged part 105.

[0022] The first side wall portion 120 corresponds to the portion rising from the periphery of the bottom plate portion 110, which has a rectangular peripheral edge. The first side wall portion 120 rises approximately perpendicular to the upper surface of the bottom plate portion 110. In addition to numerous through holes, the first side wall portion 120 has slit portions 120b that extend vertically along the wall surface. A protrusion 203a provided on the lower part of the inner surface of the second side wall portion 200 is slidably fitted into the slit portions 120b. This allows the second side wall portion 200 to extend and contract telescopically relative to the bottom wall component portion 100. As shown in Figures 3 and 4, three slit portions 120b are provided on each of the first side wall portions 120 provided on a pair of long edges of the bottom plate portion 110, which has a rectangular peripheral edge. However, the number is not limited to this.

[0023] In this embodiment, as shown in Figures 3 and 4, the container 1 has a configuration in which the second side wall portion 200 is arranged in multiple stages. Specifically, it includes the upper second side wall portion 201 located at the top when assembled, the middle second side wall portion 202 located in the middle, and the lower second side wall portion 203 located at the bottom. The aforementioned protrusion 203a is provided on the inner surface of the lower second side wall portion 203 and is slidably fitted into the slit portion 120b of the first side wall portion 120.

[0024] Furthermore, the lower section 203 of the second side wall also has multiple lower slit sections 203b, which are slits that extend vertically along the wall surface, similar to the slit section 120b. The middle section 202a of the second side wall is slidably fitted into these lower slit sections 203b, similar to the aforementioned protrusion 203a, and is provided on the inner surface of the middle section 202 of the second side wall.

[0025] Furthermore, the second side wall section 202 also has multiple slit sections 202b, which are slits that extend vertically along the wall surface, similar to the slit section 120b. The upper protrusions 201a, which are provided on the inner surface of the upper section 201 of the second side wall section, are slidably fitted into these slit sections 202b, similar to the aforementioned protrusions 203a.

[0026] By lowering these protrusions 203a, 202a, and 201a relative to the slits 120b, 203b, and 202b, the second side wall portion 200 in the assembled state shown in Figure 2 becomes shorter relative to the bottom wall component 100, as shown in Figure 1 (unassembled state). Conversely, by raising the protrusions 203a, 202a, and 201a relative to the slits 120b, 203b, and 202b from the unassembled state shown in Figure 1, the second side wall portion 200 becomes extended and rises relative to the bottom wall component 100, as shown in Figure 2 (assembled state).

[0027] The second side wall portion 200, which extends and retracts in a telescopic manner, has its extension and retraction movement restricted by the belt member 300. The structure of this belt member 300 will be explained with reference to Figures 5 and 6.

[0028] Figure 5 is a perspective view of the belt member 300 from the top, and is the same top view as the belt member 300 shown in Figure 1. Figure 6 is a perspective view of the belt member 300 from the bottom, and is a view of the belt member 300 in the state shown in Figure 5 but turned upside down.

[0029] The belt member 300 is strip-shaped and has a predetermined length in the longitudinal direction, with an attachment portion 303 provided at one end 301 and a locking portion 305 provided at the other end 302.

[0030] The mounting portion 303 has a structure that allows it to be attached to the upper end of the second side wall portion 200, specifically to the upper section 201 of the second side wall portion. Here, Figure 7 is a partial cross-sectional perspective view of the container 1 in its assembled state. Figure 8 is a partially enlarged view showing a part of the inner surface of the upper part of the container 1 (upper section 201 of the second side wall portion) in its assembled state. As shown in Figures 7 and 8, the upper section 201 of the second side wall portion is provided with a mounting portion 204 to which the mounting portion 303 is attached. Once the mounting portion 303 is inserted into the mounting portion 204 and attached, it cannot be easily removed, and one end 301 of the belt member 300 can be fixed to the upper section 201 of the second side wall portion.

[0031] The locking portion 305 is provided on the lower surface of the other end portion 302. Specifically, the locking portion 305 is a locking shaft portion that protrudes from the lower surface of the other end portion 302. The locking portion 305 has a constricted portion in the middle of its protruding shape, resulting in a T-shaped cross-section. The locking portion 305 can be inserted into the first locked portion 103 and the second locked portion 105 of the bottom wall component 100 described above. In the assembled state shown in Figures 2 and 7, the locking portion 305 is inserted into the first locked portion 103. Now, the locking of the locking portion 305 and the first locked portion 103 will be explained using Figure 9.

[0032] Figure 9 is a partially enlarged view of a portion of the outer surface of the first side wall portion 120 located at the bottom of the container 1 when the container 1 is in its assembled state.

[0033] As shown in Figure 9, the first locking portion 103 consists of two through-regions arranged vertically. The upper region has an insertion region 103a with a larger opening diameter, while the lower region has a fitting region 103b with a smaller opening diameter than the insertion region 103a. The opening diameter of the insertion region 103a is wider than the outer diameter of the locking portion 305 (locking shaft portion). On the other hand, the fitting region 103b has an opening with approximately the same diameter as the constricted portion in the middle of the protruding shape of the locking portion 305 (locking shaft portion). The insertion region 103a and the fitting region 103b are continuous. When locking the locking portion 305 to the first locking portion 103, the locking portion 305 is inserted into the insertion region 103a from the inner surface side of the bottom wall component 100, and while inserted, the locking portion 305 is moved downward to fit into the fitting region 103b. Figure 9 shows the state in which the locking portion 305 is locked to the first locked portion 103 (fitting region 103b).

[0034] When the locking portion 305 is locked to the first locked portion 103, as shown in Figure 7, the belt member 300 extends upward and has a predetermined rigidity, thereby preventing the upward-extending second side wall portion 200 from telescopically contracting under its own weight.

[0035] The locking portion 305, which has locked the fitting region 103b of the first locked portion 103, can move to the insertion region 103a, and by moving to the insertion region 103a, the locking portion 305 can be moved toward the inner surface of the bottom wall component 100. By moving the locking portion 305 toward the inner surface of the bottom wall component 100, the locking portion 305 can be released from its locking state with the first locked portion 103. The finger rest 111 shown in Figure 9 can be used for this operation of moving the locking portion 305 toward the insertion region 103a.

[0036] The finger grip portion 111 is a protruding portion provided on the outer surface of the bottom wall component 100 (first side wall portion 120), and is formed to protrude outward from a position above the first locking portion 103. The operator can operate the finger grip portion 111 and the locking portion 305 (locking shaft portion) by pinching them with their fingers, thereby easily releasing the locking state of the locking portion 305. As a result, the extension and retraction of the second side wall portion 200 can be efficiently performed from the outside of the container 1.

[0037] The outer surface of the bottom wall component 100 (first side wall component 120) is further provided with ribs 112 as shown in Figure 9. The ribs 112 protrude outward, just like the finger rest portion 111, and are formed to extend in the vertical direction. Two ribs 112 are provided, flanking the finger rest portion 111. The two ribs 112 and the finger rest portion 111 are connected in a continuous line. The first locking portion 103 is located between the two ribs 112. When the locking portion 305 is locked to the first locking portion 103, the height of the outer end surface of the rib 112 protruding outward from the outer surface of the bottom wall component 100 (first side wall component 120) is higher than the protruding end of the locking portion 305 (locking shaft portion). As a result, the locking portion 305 (locking shaft portion) locked to the first locking portion 103 does not protrude outward beyond the outer end surface of the rib 112. This configuration prevents the locking portion 305 (locking shaft portion) from getting caught and releasing the lock when the container 1 is placed on it.

[0038] As shown in Figure 5, an operating part 306 is formed on the other end 302 of the belt member 300. The locking state of the locking part 305 can also be released by operating the operating part 306. Specifically, the operator displaces the operating part 306 upward to release the locking state, grasps the raised curved part 307, and detaches the locking part 305 (locking shaft) from the first locked part 103. The detached locking part 305 (locking shaft) is then guided to the second locked part 105 by the rail part 107. In other words, in this embodiment, the locking of the locking part 305, which is in a locked state, can be released not only from outside the container 1 using the finger grip 111, but also from inside the container 1 using the operating part 306. Operation using the operating part 306 is also effective when there is no space to operate the finger grip 111.

[0039] Here, the installation method of the assembled belt member 300 will be explained using Figure 10 along with Figure 7. Figure 10 is a partial cross-sectional view of the container when it is assembled, showing the state when the belt member 300 is cut along its longitudinal direction.

[0040] As shown in Figures 7 and 10, the first side wall portion 120 is provided with a first insertion portion 122 through which the belt member 300 is inserted. Furthermore, the lower section 203 and middle section 202 of the second side wall portion 200 are provided with second insertion portions 222 through which the belt member 300 is inserted. The first insertion portion 122 and the second insertion portion 222 are formed to be approximately the same width as the belt member 300. Because the displacement of the belt member 300 in the width direction is restricted by the edges of the first insertion portion 122 and the second insertion portion 222, rattling of the belt member 300 can be suppressed. Additionally, when moving the belt member 300 in conjunction with the expansion and contraction of the second side wall portion 200, the belt member 300 can be operated stably.

[0041] Incidentally, the bottom wall component 100 is provided with a chamfered shape 109 at the boundary between the bottom plate portion 110 and the first side wall portion 120. On the other hand, the other end 302 of the belt member 300 has a curved portion 307 (Figures 5 and 10) that curves away from the bottom plate portion 110 when the second side wall portion 200 is contracted and locked to the second locking portion 105. This curved portion 307 is formed to follow the chamfered shape 109. As a result, when the second side wall portion 200 is extended, the curved portion 307 is positioned to align with the chamfered shape 109. The locking portion 305 protrudes from the lower surface of the curved portion 307. By providing the curved portion 307, when the second side wall portion 200 is contracted and the other end portion 302 is locked to the second locking portion 105, the curved portion 307 is positioned away from the bottom plate portion 110. This makes it easier for the operator to grasp the other end portion 302, improving the operability of the belt member 300. Furthermore, when the second side wall portion 200 is extended and the locking portion 305 is locked to the first locking portion 103, the curved portion 307 aligns with the chamfered shape 109, thus preventing an item from getting caught between the belt member 300 (especially the other end portion 302 of the belt member 300) and the bottom wall component 100.

[0042] Furthermore, a protective portion 109a (Figure 7) is provided at the end of the chamfered shape 109 to protect the side surface of the belt member 300. Specifically, the protective portion 109a (Figure 7) provided at the end of the chamfered shape 109 guards the side surface of the curved portion 307 when the curved portion 307 meets the chamfered shape 109, protecting the curved portion 307 from external impacts. The protective portion 109a is a wall rising from the end of the chamfered shape 109 and has a surface facing the side surface of the curved portion 307. The protective portions 109a are provided in pairs so as to sandwich the curved portion 307 from both end faces in the width direction of the belt member 300. By providing such protective portions 109a, it is possible to prevent the locking portion 305 from being damaged when an article contained in the container 1 collides with the belt member 300 from the side. Furthermore, it is possible to prevent the locking portion 305 from unexpectedly detaching from the first locking portion 103 when an item placed in the container 1 collides with the belt member 300 from the side. In this example, the protective portion 109a protects only the curved portion 307, but the protective portion 109a may be formed continuously up to the upper end of the first side wall portion 120, thereby protecting the belt member 300 in addition to the curved portion 307, up to the upper end of the first side wall portion 120.

[0043] Here, as shown in Figure 11, the chamfered shape 109 has a recess that is one step lower than the surface of the bottom plate portion 110, and the curved portion 307 is housed in this recess. This prevents the curved portion 307 from protruding from the bottom plate portion 110 and suppresses damage to the articles stored in the container 1.

[0044] In this embodiment, the curved portion 307 is protected by the recess of the chamfered shape 109 and the protective portion 109a, but it may also be protected by the recess of the chamfered shape 109 alone, or by the protective portion 109a alone.

[0045] As shown in Figure 2, when the container 1 is assembled, the operator can rotate the handle member 400 to raise it, and then grasp the raised handle member 400 with their hand or put their arm through it to carry the container 1. This allows the container 1 to be carried in a manner similar to shopping baskets commonly seen in stores.

[0046] Next, the position of the belt member 300 in the unassembled state will be explained with reference to Figure 1, as well as Figures 11 and 12. Figure 11 is a partial cross-sectional view of the container 1 when it is in the unassembled state, and Figure 12 is a partial cross-sectional view of the container at the cutting line AA' shown in Figure 11. In the unassembled state, the second side wall portion 200 is contracted, and the upper part 201, middle part 202, and lower part 203 of the second side wall portion overlap in this order. The opening regions of the second insertion portions 222 of the middle part 202 and the lower part 203 of the second side wall portion overlap, and also overlap with the first insertion portion 122 of the first side wall portion 120. The belt member 300 extends from the mounting portion 204, through its overlapping first and second insertion portions 122 and 222, to the second locking portion 105 in the center of the bottom plate portion 110.

[0047] When changing the shape of the container 1 from the assembled state to the unassembled state, as described above, the operator places their fingers on the finger rest 111 to release the lock between the first locking portion 103 and the locking portion 305. With the locking portion 305 thus released, the second side wall portion 200 to which the belt member 300 is attached is displaced downward by its own weight, and is guided by the rail portion 107, sliding along the rail portion 107 to the second locking portion 105 in the center of the bottom plate portion 110. This allows the operator to stably operate the belt member 300.

[0048] As shown in Figures 1, 11, and 12, the locking portion 305 locks the second locked portion 105, thereby maintaining the shape of the container 1 shown in the figure (unassembled state) and preventing the second side wall portion 200 from undesirably extending (becoming the assembled state shown in Figure 2).

[0049] When changing the shape of the container 1 from an unassembled state to an assembled state, the upper section 201 of the second side wall to which the belt member 300 is attached is pushed upward by the rigid belt member 300 through a sliding operation of the belt member 300, and then the middle section 202 of the second side wall connected to the upper section 201 of the second side wall is displaced upward, thereby assembling the container. In this way, the shape can be changed to the assembled state simply by operating the belt member 300, resulting in excellent assembly workability.

[0050] The bottom wall component 100 and the second side wall component 200 can be made from the same material. For example, they can be made from polypropylene (PP), but are not limited to this. The belt member 300 can also be made from PP, for example. When assembled, the belt member 300 needs to support the second side wall component 200 by bracing one end 301 and the other end 302 against it to prevent the extended second side wall component 200 from shrinking. Therefore, it needs to have a degree of rigidity that can achieve this, and is realized with a size (belt width, belt thickness) that makes this possible.

[0051] Furthermore, the second side wall portion 200 (upper section 201 of the second side wall portion) is provided with a handle portion 500, as shown in Figure 1, for example. This handle portion 500 is arranged on a pair of short edges of the upper section 201 of the second side wall portion, which has rectangular peripheral edges. The handle portion 500 has a structure that penetrates vertically, allowing the user to grip it with their hand or fingers. As shown in Figure 1, when the container 1 is in an unassembled state, one handle portion 500 can be pointed towards the zenith and the other handle portion 500 towards the ground, and the container 1 can be carried with one hand by gripping one of the handle portions 500, making it easy to carry. However, the method of carrying the container 1 in an unassembled state is not limited to this configuration. As shown in Figure 1, it is also possible to carry the container 1 with the opening side facing the zenith and gripping both handle portions 500. The handle portion 500 is integrally formed with the upper section 201 of the second side wall portion. Furthermore, the handle portion 500 only needs to be able to be gripped by a finger, and does not need to penetrate vertically in the state shown in Figure 1; it may be composed of a recess opening downwards.

[0052] In the unassembled state shown in Figures 1, 11, and 12, the handle member 400 is positioned along the second side wall portion 200 (upper section 201 of the second side wall portion).

[0053] As described above, according to the configuration of the container 1 of this embodiment, since a second side wall portion 200 that extends and retracts in a telescopic manner is provided, when no items are stored in the container 1, the second side wall portion 200 can be retracted to make the container 1 a compact shape, which is convenient as it does not take up much space when storing and carrying it. Furthermore, according to the configuration of the container 1 of this embodiment, the belt member 300 can restrict the extension of the second side wall portion 200 when the second side wall portion 200 is in a retracted state relative to the bottom wall portion 100. As a result, the second side wall portion 200 will not extend unnecessarily.

[0054] [Variation] In the above-described embodiment, the second side wall portion 200 has a shape that opens up as it extends upward. That is, the first side wall portion 120 is the smallest diameter frame, and the lower second side wall portion 203 is the larger diameter frame. Furthermore, the middle second side wall portion 202 is the larger diameter frame than the lower second side wall portion 203, and the uppermost second side wall portion 201 is the larger diameter frame than the middle second side wall portion 202. However, the present invention is not limited thereto. The first side wall portion 120 may be the largest diameter frame, and frames with smaller diameters may be stacked on top of each other. Also, in the above-described embodiment, there are three second side wall portions (upper second side wall portion 201, middle second side wall portion 202, and lower second side wall portion 203), but there may be only one.

[0055] Furthermore, in the above-described embodiment, the first insertion portion 122 is a through hole whose outer circumference is surrounded by the first side wall portion, and the second insertion portion 222 is also a through hole whose outer circumference is surrounded by the lower part 203 or the middle part 202 of the second side wall portion. However, the present invention is not limited thereto. For example, the first insertion portion 122 may be realized in the form of a notch in which its outer circumference is cut out at the upper end of the first side wall portion. Also, the second insertion portion 222 may be realized in the form of a notch in which its outer circumference is cut out at the lower end of the lower part 203 or the middle part 202 of the second side wall portion.

[0056] Furthermore, in the above-described embodiment, the two belt members 300 are attached to a pair of short edges of the upper second side wall 201 having rectangular peripheral edges. However, the present invention is not limited to this. For example, they may be attached to a pair of long edges of the upper second side wall 201 having rectangular peripheral edges. In another embodiment, they may be provided on a pair of long edges and a pair of short edges of the upper second side wall 201 having rectangular peripheral edges. This embodiment comprises four belt members. Also, the two belt members 300 described in the above-described embodiment may be connected at the other end 302. In short, they may be realized as a single belt member. In this case, a structure that is expandable or a hinge-like structure may be provided between the other end 302 so that the length between the other end 302 can be varied.

[0057] Furthermore, although the container 1 has an outer shape that is roughly that of a rectangular parallelepiped in the above-described embodiment, the present invention is not limited thereto. The first side wall portion 120 and the second side wall portion 200 may have a cylindrical shape. Also, as a modification of the above-described embodiment, the rail portion may penetrate the bottom plate portion and a continuous through hole may be formed to connect the first locking portion and the second locking portion.

[0058] Furthermore, in the above-described embodiment, one end 301 of the belt member 300 is fixed to the inner surface of the upper part 201 of the second side wall, and the locking position of the other end 302 is changed, but the present invention is not limited thereto. Both one end 301 and the other end 302 may be made into removable locking parts, and the locking parts may be provided at appropriate positions on the bottom wall component 100 and the second side wall 200, so that when changing from an assembled state to an unassembled state, the locking positions of both one end 301 and the other end 302 can be changed to different locations.

[0059] 〔summary〕 A container according to Embodiment 1 of the present disclosure comprises a bottom wall component including a substantially plate-shaped bottom plate and a first side wall component extending upward from the peripheral edge of the bottom plate; a second side wall component that is cylindrical and telescopically expands and contracts relative to the bottom wall component; and a belt member that restricts the expansion and contraction movement of the second side wall component.

[0060] According to the above configuration, since a second side wall portion that extends and retracts in a telescopic manner is provided, when no articles are stored in the container according to Embodiment 1 of this disclosure, the second side wall portion can be retracted to make the container compact, which is convenient as it does not take up much space when storing or carrying it.

[0061] Furthermore, with the above configuration, the belt member restricts the expansion of the second side wall when it is contracted relative to the bottom wall component, thus preventing the second side wall from expanding undesirably.

[0062] In the container according to embodiment 2 of the present disclosure, in embodiment 1, the belt member may be configured such that one end is provided with a mounting portion that is attached to the second side wall, or a locking portion that is removable from the second side wall.

[0063] According to the above configuration, one end of the belt member can be attached to the second side wall via the attachment portion. Furthermore, one end of the belt member can be detachably attached to the second side wall via the locking portion.

[0064] In the container according to embodiment 3 of the present disclosure, in embodiment 1 or 2, at least one of the first side wall portion and the second side wall portion may be provided with an insertion portion for inserting the belt member.

[0065] According to the above configuration, the belt member's displacement in the width direction is restricted by the edge of the insertion portion, thus suppressing rattling of the belt member. Furthermore, according to the above configuration, the belt member can be operated stably when moving it in conjunction with the expansion and contraction of the second side wall portion.

[0066] A shopping basket according to aspect 4 of the present disclosure comprises a bottom wall component including a substantially plate-shaped bottom plate and a first side wall component extending upward from the peripheral edge of the bottom plate; a second side wall component that is cylindrical and telescopically extends and retracts relative to the bottom wall component; and a belt member that restricts the extension and retraction movement of the second side wall component.

[0067] According to the above configuration, since a second side wall portion that extends and retracts in a telescopic manner is provided, when no items are placed in the shopping basket according to embodiment 4 of this disclosure, the second side wall portion can be retracted to make the shopping basket a compact shape, which is convenient as it does not take up much space when storing and carrying it. Furthermore, according to the above configuration, the belt member restricts the extension of the second side wall portion when it is retracted relative to the bottom wall portion, so the second side wall portion does not extend unnecessarily.

[0068] [Additional Notes] The present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. [Explanation of symbols]

[0069] 1 container 100 Bottom wall component 103 First locked part 103a Insertion area 103b Mating area 105 Second locked part 107 Rail section 109 Chamfered shape 109a Protective part 110 Bottom plate part 111 Finger rest 112 Ribs 120 First side wall section 120b Slit section 122 First insertion section (insertion section) 200 Second side wall section 201 Upper section of the second side wall 201a Upper part of the protrusion 202 Middle section of the second side wall 202a Middle section of the convex part 202b Middle section of the slit 203 Lower section of the second side wall 203a Convex part 203b Lower section of the slit 204 Mounting part 222 Second insertion section (insertion section) 300 Belt component 301 One end 302 The other end 303 Mounting section 305 Locking part 306 Operation section 307 Curved section

Claims

1. A bottom wall component comprising a roughly plate-shaped bottom plate portion and a first side wall portion extending upward from the peripheral edge of the bottom plate portion, It has a cylindrical shape and a second side wall portion that extends and retracts telescopically relative to the bottom wall component, A belt member that restricts the expansion and contraction of the second side wall portion, Equipped with, A container having an insertion portion for inserting the belt member in at least one of the first side wall portion and the second side wall portion.

2. The belt member is provided with an attachment portion at one end that is attached to the second side wall, or a locking portion that is removable from the second side wall. The container according to claim 1.

3. A bottom wall component comprising a roughly plate-shaped bottom plate portion and a first side wall portion extending upward from the peripheral edge of the bottom plate portion, It has a cylindrical shape and a second side wall portion that extends and retracts telescopically relative to the bottom wall component, A belt member that restricts the expansion and contraction of the second side wall portion, Equipped with, A shopping basket having an insertion portion for inserting the belt member in at least one of the first side wall portion and the second side wall portion.

4. The belt member is provided with an attachment portion at one end that is attached to the second side wall, or a locking portion that is removable from the second side wall. The shopping cart according to claim 3.

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