Sliding Rotary Storage Unit

Abstract

Various embodiments of a storage device are provided. The storage device includes one or more storage compartments that are slidable relative to the sidewalls of the storage device. The container is also rotatable relative to the sidewalls of the storage device, thereby allowing improved accessibility of the storage compartments within the container.

Description

Technical Field

[0001] Cross-referencing of related patent applications

[0002] This application claims the benefit and priority of U.S. Provisional Application No. 63 / 122,294, filed on December 7, 2020, the entire contents of which are incorporated herein by reference. Background Technology

[0003] This disclosure generally relates to storage compartments, units, and / or devices. Specifically, it relates to storage units that slide and rotate relative to sidewalls to provide improved accessibility to internal storage compartments.

[0004] Storage units are generally used for storing and / or organizing tools, equipment, and other items. A storage unit includes one or more containers actuated between a retracted position and one or more open positions, in which the storage compartment is inaccessible and in which tools, equipment, and other items can be retrieved. Summary of the Invention

[0005] One embodiment of the present invention relates to a storage device including a first sidewall, a second sidewall opposite to the first sidewall, and a storage element defining a storage compartment within the storage element. The storage element is slidably and rotatably coupled to each of the first and second sidewalls. The storage element is slidably actuated relative to the first and second sidewalls between a retracted position and a forward position. In the retracted position, the storage element is retracted within the storage device; in the forward position, the storage element extends beyond the front portions of the first and second sidewalls. When the storage element is in the forward position, the storage element is rotatably actuated relative to the first and second sidewalls between a first position in which the top of the storage element faces vertically upwards, and in the second position in which the top surface of the storage element faces forward and upwards.

[0006] Another embodiment of the invention relates to a storage device including a first sidewall, a second sidewall opposite to the first sidewall, and a storage element defining a storage compartment. The storage compartment is accessible through an upper opening defined by the storage element. The storage element is slidably and rotatably coupled to each of the first and second sidewalls. The storage element is rotatably actuated relative to the first and second sidewalls between a first position and a second position, in which the upper opening is partially located between the first and second sidewalls, and in a second position, the entire upper opening is located in front of both the first and second sidewalls.

[0007] Another embodiment of the invention relates to a storage device. The storage device includes a first sidewall, a first upper channel, a first lower channel, a second sidewall, a second upper channel, a second lower channel, a storage element, a first upper protrusion, a first lower protrusion, a second upper protrusion, and a second lower protrusion. The first upper channel extends laterally through the first sidewall from a first end to a second end. The first upper channel includes an intermediate portion lower than each of the first and second ends. The first lower channel extends laterally through the first sidewall below the first upper channel. A second sidewall is opposite to the first sidewall. The second upper channel extends laterally through the second sidewall from the first end to the second end. The second upper channel includes an intermediate portion lower than each of the first and second ends. The second lower channel extends laterally through the second sidewall below the second upper channel. The storage element defines a storage compartment within the storage element. The storage element is slidably and rotatably coupled to each of the first and second sidewalls. The first upper protrusion extends from the storage element and slidably engages with the first upper channel. A second upper protrusion extends from the storage element away from the first upper protrusion. The second upper protrusion slidably engages with a second upper channel. A first lower protrusion extends from the storage element and slidably engages with a first lower channel. A second lower protrusion extends from the storage element away from the second lower protrusion. The second lower protrusion slidably engages with a second lower channel.

[0008] Another embodiment of the invention relates to a storage device including a first sidewall, a second sidewall opposite to the first sidewall, and a container including a storage compartment. The container is slidably and rotatably coupled to each of the first and second sidewalls. The container is slidably actuated between a retracted position and a forward position. In the retracted position, the container is recessed between the first and second sidewalls. In the forward position, the container extends partially beyond the front portions of the first and second sidewalls. When the container is in the forward position, the container rotates between the first and second configurations. In one embodiment, when the container is in the retracted position, rotation relative to the first and second sidewalls is prevented (e.g., by engagement between the container and the sidewalls).

[0009] In a particular embodiment, when the container moves from the first configuration to the second configuration, the container rotates at least 30 degrees relative to a horizontal plane that is substantially perpendicular to the vertical surfaces of the first and second sidewalls. In a particular embodiment, when the container is in the first configuration, the upper opening of the container is at least partially received between the first and second sidewalls, and when the container is in the second configuration, the entire upper opening of the storage compartment is located in front of the first and second sidewalls.

[0010] Another embodiment of the invention relates to a storage device including a first sidewall, a second sidewall opposite to the first sidewall, and a container including a storage compartment. A first upper channel extends laterally inside the first sidewall, and a first lower channel extends laterally inside the first sidewall below the first upper channel. A second upper channel extends laterally inside the second sidewall, and a second lower channel extends laterally inside the second sidewall below the second upper channel. A first upper protrusion extends from the storage compartment and slidably engages with the first upper channel. A second upper protrusion extends from the storage compartment away from the first upper protrusion and slidably engages with the second upper channel. A first lower protrusion extends from the storage compartment and slidably engages with the first lower channel. A second lower protrusion extends from the storage compartment away from the first lower protrusion and slidably engages with the second lower channel.

[0011] Additional features and advantages will be set forth in the following detailed description and will be apparent in part from the description or to those skilled in the art by practice of the embodiments as described in the included written description and accompanying drawings. It should be understood that the general description above and the following detailed description are exemplary.

[0012] The accompanying drawings are included to provide a further understanding and are incorporated in and constitute a part of this specification. The drawings illustrate one or more embodiments and, together with the description, serve to explain the principles and operation of several different embodiments. Attached Figure Description

[0013] This application will become more fully understood from the following detailed description taken in conjunction with the accompanying drawings, wherein similar reference numerals denote similar elements, as shown in the drawings:

[0014] Figure 1 This is a perspective view of a storage device according to an exemplary embodiment.

[0015] Figure 2 This is according to an exemplary embodiment. Figure 1 A three-dimensional view of the storage device.

[0016] Figure 3 This is according to an exemplary embodiment. Figure 1 A detailed perspective view of the storage device.

[0017] Figure 4 This is according to an exemplary embodiment. Figure 1 A three-dimensional view of a portion of the storage device.

[0018] Figure 5 This is a perspective view of a storage device according to an exemplary embodiment.

[0019] Figure 6 This is a perspective view of a portion of a storage device according to an exemplary embodiment. Detailed Implementation

[0020] Referring generally to the accompanying drawings, various embodiments of storage compartments, devices, and / or units are illustrated. In various embodiments, the storage device includes one or more storage compartments that are slidable relative to the sidewalls of the storage device. The container described herein slides and rotates relative to the sidewalls. As a result, the storage compartments of the container are more easily accessible by allowing the container to rotate and slide relative to the sidewalls, compared to the accessibility of the container sliding only relative to the sidewalls / shell.

[0021] The storage compartment is activated from the retracted position, in which it is wholly and / or mostly received between the side walls (e.g., the housing of the storage device). The storage compartment slides relative to the side walls to a forward position. From the forward position, the storage compartment rotates relative to the side walls to expose an upper opening in the storage compartment, thereby allowing for greater access relative to the storage compartment than before it was rotated.

[0022] Reference Figures 1 to 2 The illustration shows a container, unit, and / or device (shown as storage device 10) according to an exemplary embodiment. The storage device includes one or more storage elements (shown as container 70) defining storage compartments 72 within the container 70. A first sidewall 12 and a second sidewall 16 opposite to the first sidewall 12 extend on both sides of the one or more containers 70. In a particular embodiment, one or more rigid structures (shown as partitions 19) extend between the first sidewall 12 and the second sidewall 16 to maintain their relative positioning. In a particular embodiment, a handle 78 is coupled to the container 70 to facilitate sliding and / or rotating movement of the container 70.

[0023] Container 70 is slidably and rotatably connected to each of the first sidewall 12 and the second sidewall 16, for example, via frame 88. Specifically, container 70 is positioned along direction 62 from the folded position (…). Figure 1 Slide to the front position ( Figure 2 In the retracted position, the storage element is retracted into the storage device; in the forward position, the storage element extends beyond the front portions of the first and second sidewalls. When the container 70 is in the forward position, the container 70 can be rotated actuated relative to the first sidewall 12 and the second sidewall 16 between a first position and a second position. In the first position, the top of the container 70 (shown as the upper opening 74) faces vertically upward; in the second position, the upper opening 74 of the container 70 faces forward and upward.

[0024] When in the forward position, container 70 rotates along direction 64 relative to the first sidewall 12 and the second sidewall 16 about axis 80 from a first position to a second position. In the first position, container 70 is partially enclosed within storage device 10 and extends from the housing, with the upper opening 74 being substantially horizontal and facing upward. In the second position, the upper opening 74 of container 70 is rotated forward to make it easier to access storage compartment 72 through the upper opening 74. In this arrangement, container 70 is rotated such that the upper opening 74 of container 70 moves from a substantially horizontal position relative to the horizontal plane to an angled position, and this rotated position allows the user to have more direct access to the contents of container 70. In various embodiments, when container 70 is positioned in the second position ( Figure 2 Axis 80 extends between the first sidewall 12 and the second sidewall 16. In various embodiments, the bottom wall 76 of the container 70 defines the bottom of the container 70 opposite the upper opening 74, and at least a portion of the bottom wall 76 is located between the first sidewall 12 and the second sidewall 16 when the container 70 is positioned in the second position. In a particular embodiment, when the container 70 is in an open configuration (e.g., the second position), the upper opening 74 of the container 70 is entirely and / or substantially positioned in front of the front surface 14 of the first sidewall 12 and in front of the front surface 18 of the second sidewall 16. Figure 2 When the container 70 is in a partially closed configuration (e.g., a first position), the upper opening 74 is partially received between the first sidewall 12 and the second sidewall 16. In various embodiments, when the container 70 is in a second position, the entire upper opening 74 is located in front of the front surfaces 14, 18 of both the first sidewall 12 and the second sidewall 16.

[0025] Reference Figure 3 and Figure 4 The slots and / or openings (shown as upper channel 20 and lower channel 30) extend laterally from the rear surface 13 toward the front surface 14 within the first sidewall 12. In various embodiments, the upper channel 20 extends laterally through the first sidewall 12 from a first end 21 to a second end 26, the first upper channel 20 including an intermediate portion (shown as a recess 24) below each of the first end 21 and the second end 26. In various embodiments, the lower channel 30 extends laterally through the first sidewall 12 below the first upper channel 20 from a first end 31 to a second end 32 at a height 33 lower than the first end 31. A first upper protrusion 90 extends away from the storage compartment 72 and slidably and rotatably engages with the upper channel 20. A first lower protrusion 92 extends away from the storage compartment 72 and slidably and rotatably engages with the lower channel 30.

[0026] In use, when the container 70 is in the retracted position, the first upper protrusion 90 is positioned at or near the first end 21 of the upper channel 20, and the first lower protrusion 92 is positioned at or near the first end 31 of the lower channel 30. In various embodiments, the first sidewall 12 and the second sidewall 16 are symmetrical relative to each other, and as a result, when the container 70 is in the retracted position, the second upper protrusion 94 and the second lower protrusion 96 are also located near the ends of their respective channels in the second sidewall 16. To access the container 70, the container 70 moves along direction 62 relative to the first sidewall 12 from the rear surface 13 of the sidewall toward the front surface 14 of the first sidewall 12.

[0027] When container 70 moves from a stowed position to a forward position along direction 62, the first upper protrusion 90 slides along the first portion 22 from the first end 21 to the recess 24 within the upper channel 20, and the first lower protrusion 92 slides along the lower channel 30 from the first end 31 to the second end 32. In exemplary use, when the first upper protrusion 90 is positioned at the recess 24, the first lower protrusion 92 is positioned at and / or near the second end 32.

[0028] After container 70 moves to the forward position, container 70 then rotates along direction 64, causing container 70 to move from the first position to the second position. As container 70 rotates along direction 64, the first upper protrusion 90 slides along the second portion 27 of the upper channel 20 to the second end 26, while the first lower protrusion 92 remains stationary and / or largely stationary within the lower channel 30 and rotates within the lower channel 30. In various embodiments, the first sidewall 12 and the second sidewall 16 are symmetrical relative to each other, and therefore the second upper protrusion 94 and the second lower protrusion 96 function similarly to the first upper protrusion 90 and the first lower protrusion 92. In exemplary use, when the first upper protrusion 90 is positioned at the second end 26, the first lower protrusion 92 is positioned at and / or near the second end 32. In this arrangement, the container 70 is rotated such that the upper opening 74 of the container 70 moves from a substantially horizontal position to an angled position relative to the horizontal plane, and this rotated position allows the user to have more direct access to the contents of the container 70. In a particular embodiment, when the container 70 moves from the first position to the second position, the upper opening 74 of the container 70 is rotated at least 15 degrees, and more specifically at least 25 degrees, and more specifically at least 30 degrees, relative to the horizontal plane and the first sidewall 12 and the second sidewall 16.

[0029] In a particular embodiment, the recess 24 is located at a height 25 below the first end 21 of the upper channel 20, and the second end 32 is located at a height 33 below the first end 31 of the lower channel 30. In a particular embodiment, height 25 and height 33 are equal. As a result, the container 70 is reduced by height 25 and / or height 33 relative to the first sidewall 12 and the second sidewall 16, both of which are equal in various embodiments, when the container 70 is moved from the folded position ( Figure 1 When the container 70 is moved (e.g., actuated) to the forward position, this allows the container 70 to rotate along direction 64 with virtually no interference and / or no interference with the structural elements above the storage device 10 (e.g., the container above the rotating container).

[0030] In a particular embodiment, container 70 is coupled to frame 88. Frame 88 includes a first upper protrusion 90 and a second upper protrusion 94, which extend away from each other. Figure 4 In a particular embodiment, the first upper protrusion 90 and the second upper protrusion 94 are axially aligned. The frame 88 includes a first lower protrusion 92 and a second lower protrusion 96 extending away from each other. In a particular embodiment, the first lower protrusion 92 and the second lower protrusion 96 are axially aligned.

[0031] In various embodiments, a first upper protrusion 90 extends from the container 70 and slidably engages with a first upper channel 20 of the first sidewall 12, and a second upper protrusion 94 extends from the container 70 away from the first upper protrusion 90 and slidably engages with a second upper channel of the second sidewall 16. In various embodiments, a first lower protrusion 92 extends from the container 70 and slidably engages with a first lower channel 30 of the first sidewall 12, and a second lower protrusion 96 extends from the container 70 away from the first lower protrusion 92 and slidably engages with a second lower channel of the second sidewall 16.

[0032] In various embodiments, the sidewall 16 has a structure symmetrical to the first sidewall 12, including, but not limited to, the second sidewall 16 including an upper channel and a lower channel symmetrical to the upper channel 20 and the lower channel 30 of the first sidewall 12. Therefore, all descriptions of the first sidewall 12 and all descriptions related to the first sidewall 12 can be equally applied to the second sidewall 16.

[0033] In various embodiments, when the container 70 is slidably actuated relative to the first sidewall 12 and the second sidewall 16 between a stowed position and a forward position, and when the container 70 slides from the stowed position to the forward position, each of the first upper protrusion 90, the second upper protrusion 94, the first lower protrusion 92, and the second lower protrusion 96 slides within a corresponding channel, with the corresponding protrusion engaging with the corresponding channel (e.g., the first upper protrusion 90 slides within the upper channel 20 of the first sidewall 12, the second upper protrusion 94 slides within the upper channel of the second sidewall 16, the first lower protrusion 92 slides within the lower channel 30 of the first sidewall 12, and the second lower protrusion 96 slides within the lower channel of the second sidewall 16).

[0034] Reference Figure 5 The diagram illustrates various aspects of storage device 110. Apart from the differences described herein, storage device 110 is functionally similar to storage device 10. For example, partitions 119 of storage device 110 are positioned at different locations relative to one or more containers 170 along sidewalls 112 and 114. Although only one container 170 is shown attached to storage device 110, it is envisioned herein that up to three containers 170 could be attached to storage device 110, similar to storage device 10.

[0035] Reference Figure 6 The diagram illustrates various aspects of storage device 210. Apart from the differences described herein, storage device 210 is functionally similar to storage device 10 and storage device 110. For example, in a particular embodiment, storage device 210 includes one container, while storage devices 10 and 110 include up to three containers.

[0036] It should be understood that the accompanying drawings illustrate exemplary embodiments in detail, and that this application is not limited to the details or methods set forth in the description or shown in the drawings. It should also be understood that the terminology is for descriptive purposes only and should not be considered limiting.

[0037] In view of this specification, further modifications and alternative embodiments of various aspects of this disclosure will be apparent to those skilled in the art. Therefore, this specification should be construed as illustrative only. The constructions and arrangements shown in the various exemplary embodiments are merely illustrative. While only a few embodiments are described in detail in this disclosure, many modifications can be made (e.g., variations in the size, dimensions, structure, shape, and proportions of various elements; variations in parameter values, mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described herein. Some elements shown as integrally formed may be constructed from multiple parts or elements, the positions of elements may be reversed or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. According to alternative embodiments, the order or sequence of any process, logical algorithm, or method steps may be changed or reordered. Other substitutions, modifications, alterations, and omissions may also be made in terms of the design, operating conditions, and arrangements of the various exemplary embodiments without departing from the scope of this disclosure.

[0038] Unless otherwise expressly stated, no method described herein is intended to be construed as requiring its steps to be performed in a specified order. Accordingly, the absence of a specific order in which the method claims do not explicitly list the order in which the steps should be followed, or where the claims or description do not specifically state that the steps should be limited to a particular order, shall not imply any particular order can be inferred. Furthermore, the article “a” used herein is intended to include one or more parts or elements, and is not intended to be construed as referring to only one. As used herein, “rigid connection” means two parts connected in a manner such that these parts move together in a fixed positional relationship when subjected to force.

[0039] The various embodiments of this disclosure relate to any combination of any features, and any such combination of features may be claimed in this application or a future application. Any feature, element, or component of any exemplary embodiment discussed above may be used alone or in combination with any feature, element, or component of any other embodiment discussed above.

[0040] For the purposes of this disclosure, the term "connection" means that two components are directly or indirectly linked together. Such a connection may be fixed in nature or movable in nature. Such a connection may be achieved by forming a single entity by integrating two components and any additional intermediate components together, or by attaching two components or two components and any additional components to each other. Such a connection may be permanent in nature, or alternatively, removable or detachable in nature.

[0041] Although specific combinations of features are recited in the appended claims, various embodiments of the invention relate to any combination of any features described herein (whether or not such a combination is currently claimed), and any such combination of features may be claimed in this or future applications. Any feature, element, or component of any exemplary embodiment discussed above may be used alone or in combination with any feature, element, or component of any other embodiment discussed above.

Claims

1. A storage device, comprising: First sidewall; A first channel, extending laterally through the first sidewall, the first channel comprising: First end; The second end; and Below the middle portion between the first end and the second end; The second sidewall is opposite to the first sidewall; A second channel, extending laterally through the second sidewall, includes: First end; The second end; and The portion below the middle portion of the first end and the second end of the second channel; and A storage element defining a storage compartment within the storage element is slidably and rotatably connected to each of the first and second sidewalls. The storage element is slidably actuated relative to the first and second sidewalls between a retracted position and a forward position. In the retracted position, the storage element is retracted into the storage device. In the forward position, the storage element extends beyond the front portions of the first and second sidewalls. When the storage element is in the forward position, it is rotatably actuated relative to the first and second sidewalls between a first position in which the top of the storage element is vertically upward, and in the second position in which the top surface of the storage element faces forward and upward.

2. The storage device of claim 1, wherein the storage element rotates about an axis relative to the first sidewall and the second sidewall, wherein, When the storage element is positioned in the second location, the axis extends between the first sidewall and the second sidewall.

3. The storage device of claim 1, wherein the storage element includes a bottom wall defining the bottom of the storage compartment, wherein, When the storage element is positioned in the second location, at least a portion of the bottom wall is between the first side wall and the second side wall.

4. The storage device of claim 1, wherein when the storage element is rotated from the first position to the second position, the storage element is rotated at least 25 degrees relative to the first sidewall and the second sidewall.

5. The storage device as claimed in claim 1, wherein, When the storage element is actuated from the retracted position to the forward position, the storage element lowers in height relative to the first sidewall and the second sidewall.

6. A storage device, comprising: First sidewall; An upper passage that extends laterally through the first sidewall between the first end and the second end; The lower passage extends laterally through the first sidewall and is located below the upper passage, the lower passage comprising: First end; and A second end portion, the second end portion being lower than the first end portion of the lower channel by a first height; a second sidewall, the second sidewall being opposite to the first sidewall; and A storage element defining a storage compartment accessible through an upper opening defined by the storage element, the storage element being slidably and rotatably coupled to each of a first sidewall and a second sidewall, the storage element being rotatably actuated relative to the first sidewall and the second sidewall between a first position, in which the upper opening is partially between the first sidewall and the second sidewall, and in the second position, in which the entire upper opening is located in front of both the first sidewall and the second sidewall.

7. The storage device of claim 6, wherein the storage element is actuated relative to the first sidewall and the second sidewall between a retracted position and a forward position, wherein in the retracted position the storage element is retracted into the storage device, and in the forward position the storage element extends beyond the front portion of the storage device, wherein... When the storage element is in the pre-position, the storage element is rotatably actuated between the first position and the second position.

8. The storage device of claim 6, wherein the storage element rotates about an axis relative to the first sidewall and the second sidewall, wherein, When the storage element is positioned in the second location, the axis extends between the first sidewall and the second sidewall.

9. The storage device of claim 6, wherein the storage element includes a bottom wall opposite the upper opening, wherein, When the storage element is positioned in the second location, at least a portion of the bottom wall is between the first side wall and the second side wall.

10. The storage device of claim 6, wherein when the storage element is rotated from the first position to the second position, the storage element rotates at least 15 degrees relative to the first sidewall and the second sidewall.

11. The storage device as claimed in claim 10, wherein, When the storage element is in the first position, the upper opening of the storage element is substantially horizontal and facing upward.

12. A storage device, comprising: First sidewall; A first upper channel extends laterally through the first sidewall from a first end to a second end, the first upper channel including a middle portion that is lower than each of the first end and the second end; A first lower passage extends laterally below the first upper passage through the first sidewall; The second sidewall is opposite to the first sidewall; A second upper channel extends laterally from the first end to the second end through the second sidewall, the second upper channel including a middle portion that is lower than each of the first end and the second end; The second lower passage extends laterally below the second upper passage through the second sidewall; A storage element defining a storage compartment within the storage element, the storage element being slidably and rotatably connected to each of the first sidewall and the second sidewall; A first upper protrusion extends from the storage element and slidably engages with the first upper channel; A second upper protrusion extends from the storage element away from the first upper protrusion and is slidably engaged with the second upper channel; A first lower protrusion extends from the storage element and slidably engages with the first lower channel; as well as A second lower protrusion extends from the storage element away from the first lower protrusion and is slidably engaged with the second lower channel.

13. The storage device as claimed in claim 12, wherein, The storage element is slidably actuated relative to the first sidewall and the second sidewall between a retracted position and a forward position. In the retracted position, the storage element is retracted into the storage device. In the forward position, the storage element extends beyond the front portions of the first sidewall and the second sidewall. When the storage element slides from the retracted position to the forward position, each of the first upper protrusion, the second upper protrusion, the first lower protrusion, and the second lower protrusion slides within a corresponding channel that engages with the corresponding protrusion.

14. The storage device as claimed in claim 13, wherein, When the storage element is in the retracted position, the first upper protrusion is located at the first end of the first upper channel, and the second upper protrusion is located at the second end of the first upper channel.

15. The storage device as claimed in claim 13, wherein, When the storage element is in the front position, the storage element is rotatably actuated relative to the first sidewall and the second sidewall between a first position and a second position. In the first position, the storage element is vertically facing upwards, and in the second position, the top surface of the storage element faces forward and upwards.

16. The storage device as claimed in claim 15, wherein, When the storage element is actuated from the first position to the second position, the first upper protrusion slides from the middle portion to the second end portion within the first upper channel, and the second upper protrusion slides from the middle portion to the second end portion within the second upper channel.

17. The storage device as claimed in claim 13, wherein, The storage element is rotatably actuated relative to the first sidewall and the second sidewall about an axis between a first position and a second position, in which the top of the storage element is vertically upward and the top of the storage element is forward and upward, wherein the axis extends between the first sidewall and the second sidewall when the storage element is positioned in the second position.

18. The storage device as claimed in claim 17, wherein, When the storage element rotates from the first position to the second position, the storage element rotates at least 25 degrees relative to the first sidewall and the second sidewall.

19. The storage device as claimed in claim 12, wherein, The middle portion of the first upper channel is lower than the first end of the first upper channel by a first height, and wherein the first lower channel extends from the first end to a second end that is lower than the first end by a second height.

20. The storage device as claimed in claim 19, wherein, The first altitude is equal to the second altitude.

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