Logistics storage system

Abstract

According to one aspect of the technology described in the present application, provided is a logistics storage system comprising: a first elevating passage formed to penetrate the center of each floor; slots formed on the outer side of each floor and configured to allow stored goods to be disposed therein; and a transfer device installed in the elevating passage to transfer the stored goods, wherein n slots are formed in each floor, the slots are disposed to be spaced apart at an angle of 360 / n degrees around the elevating passage, and n is a natural number greater than or equal to 3.

Description

Logistics storage system

[0001] The present disclosure relates to a logistics storage system having slots for storing materials configured three-dimensionally, and specifically, to a logistics storage system comprising slots arranged radially with respect to an elevator passage.

[0002] The technology described herein was developed with support from a research project of the Ministry of Land, Infrastructure and Transport managed by the Korea Institute of Construction Technology (Project Title: Real-time Delivery Service Utilizing Urban MFC (Micro Fulfillment Center) and Mobile Warehouse) and a research project of the Ministry of SMEs and Startups managed by the Korea Technology Information Promotion Agency for SMEs (Project Title: Development of Shuttle-based Smart Storage Technology Capable of Multi-directional Picking and Movement).

[0003] With the growth of online commerce, the volume of goods ordered online has increased significantly, leading to the emergence of smart logistics technologies. Cutting-edge technologies such as artificial intelligence, big data, and the Internet of Things are being applied to areas including materials, packaging, handling, storage, and delivery. Furthermore, many retailers are adopting smart logistics systems that stock sellers' products in logistics centers prior to orders and deliver them quickly after they are placed.

[0004] Korean Patent Publication No. 10-2020-0022336 discloses an automated warehouse system capable of individually loading and unloading a large number of goods, and for the transfer of goods within the system, a conveying cart, a lifting conveying device, a transfer device, an receiving device, and an outgoing device are configured to perform rapid loading and unloading of goods.

[0005] [Prior Art Literature]

[0006] [Patent Literature]

[0007] (Patent Document 1) 1. Korean Published Patent No. 10-2020-0022336

[0008] Conventional logistics storage systems have a structure in which items are stored in multiple rows on one side and retrieved / retrieved through a transfer device installed on the other side. Since outer items must be processed first to retrieve inner items, time unrelated to retrieval / retrieval is consumed, and there are limitations on the types of products because the location of the storage space is determined by the type of product.

[0009] On the other hand, logistics storage systems that load items in a single row have the disadvantage of not being able to utilize space intensively because the space used for the operation of conveyor devices is large relative to the storage space.

[0010] In addition, these existing logistics storage systems cannot operate diverse movement routes for stored goods, so if part of the movement route is congested, accessibility to other stored goods is also reduced, which has the problem of significantly lowering the efficiency of the overall system.

[0011] In addition, existing logistics storage systems require large-scale facilities, which imposes location limitations. Furthermore, there was a problem of low scalability because expanding facilities required shutting down existing facilities and physically connecting them.

[0012] The present disclosure provides a technology that can increase space utilization by radially arranging slots in which items are stored on multiple layers, and can be installed in rack units, making it easy to expand without changing the design of existing structures, and can improve accessibility to items by allowing two opposing slots to share a movement path.

[0013] In order to achieve the above technical objective, according to one embodiment of the technology described herein, a logistics storage system is provided comprising: a rack composed of a plurality of layers; a lifting passage formed at the center of each layer; a slot formed on the outer side of each layer and configured to allow storage items to be placed therein; and a transfer device installed in the lifting passage to transport the storage items, wherein n slots are configured in each layer and are arranged radially at intervals of 360 / n degrees centered on the lifting passage, and n is a natural number greater than or equal to 3.

[0014] According to another embodiment of the technology described herein, a logistics storage system is provided comprising: a first rack composed of a plurality of first layers; a first lifting passage formed by penetrating the first center of each of the first layers; a first slot arranged radially at a certain angle spaced apart from the first lifting passage; a first transfer device installed in the first lifting passage for transferring a stored item; a second rack composed of a plurality of second layers located at the same height as the plurality of first layers; and a second slot arranged radially at a certain angle spaced apart from the second center of each of the second layers, wherein the first rack and the second rack are configured in the shape of a hexagonal column, the first rack and the second rack are installed to have a single contact surface, the first slot includes a first interlocking slot in contact with the contact surface, and the second slot includes a second interlocking slot in contact with the contact surface, and a stored item located in the first interlocking slot can be slidably moved to the second interlocking slot located in the same layer.

[0015] According to the technology described herein, space utilization can be increased by radially arranging slots in which items are stored on multiple layers, and additional expansion is easy without changing the design of the existing structure as additional racks can be installed, and two opposing slots can share a movement path with each other, thereby improving accessibility to the items.

[0016] FIG. 1 is a perspective view of a logistics storage system according to a first embodiment of the technology described herein.

[0017] FIG. 2 is a top view of a logistics storage system according to a first embodiment.

[0018] FIG. 3 is a perspective view illustrating each layer of a logistics storage system according to a first embodiment.

[0019] Figure 4 shows the moved state of the stored material in Figure 3.

[0020] FIG. 5 is a drawing of a logistics storage system according to the first embodiment in which a transfer device has moved downward.

[0021] FIG. 6 is a drawing of a logistics storage system according to a first embodiment in which a transfer device has moved upward.

[0022] FIG. 7 is a drawing of a state in which a transfer device moves upward and then rotates in one direction in a logistics storage system according to a first embodiment.

[0023] FIG. 8 is a drawing of a transfer device in a logistics storage system according to a first embodiment, in a state where the device moves upward and then rotates in the other direction.

[0024] FIG. 9 is a perspective view of a transfer device according to a first embodiment.

[0025] FIG. 10 is an exploded perspective view of a transfer device according to a first embodiment.

[0026] FIG. 11 is a perspective view of a gripper according to a first embodiment.

[0027] FIG. 12 is a front view of a logistics storage system according to a second embodiment of the technology described herein.

[0028] FIG. 13 is a perspective view of a logistics storage system according to a second embodiment.

[0029] FIG. 14 is a perspective view illustrating each layer of a logistics storage system according to a second embodiment.

[0030] FIG. 15 is a layout diagram of a logistics storage system according to the present disclosure.

[0031] Hereinafter, embodiments of a logistics storage system according to the technology described herein will be explained in more detail with reference to the attached drawings. Meanwhile, in the drawings for explaining embodiments of the technology described herein, for convenience of explanation, only some parts of the actual configuration may be shown, some parts may be omitted, modified, or drawn at a different scale.

[0032] [First Embodiment]

[0033] FIGS. 1 to 4 are drawings illustrating a logistics storage system according to a first embodiment of the technology described herein, FIG. 1 is a perspective view of the logistics storage system according to the first embodiment, FIG. 2 is a top view of the logistics storage system according to the first embodiment, FIG. 3 is a perspective view illustrating each layer of the logistics storage system according to the first embodiment, and FIG. 4 shows the state of the stored items moved in FIG. 3.

[0034] A logistics storage system according to a first embodiment includes a rack (100) composed of a plurality of layers; a lifting passage (120) formed in the center of each layer; a slot (140) formed on the outer side of each layer where a storage item is located; and a transfer device (160) installed in the lifting passage to transport the storage item.

[0035] The rack (100) may include a plurality of individual layers (110) spaced apart by a certain distance in the vertical direction. Each layer (110) refers to an individual layer. All layers of each layer (110) may be configured to have storage space, but at least one layer may be configured to have space accessible to a transfer robot. As shown in FIG. 1, all space located on the lowest layer of the rack (100) may be configured as a space for the transfer robot to travel, but is not limited thereto, and some space on the lowest layer may also be provided with slots.

[0036] Each of the above layers (110) may be configured in the shape of a polygon having three or more sides, and the rack (100) in which each of the above polygonal layers (110) is spaced apart in the vertical direction may be understood as each column formed by extending the polygon in the vertical direction.

[0037] For example, if each layer (110) is composed of a square, the rack (100) can be understood as having the form of a square prism. The layers (110) can preferably be composed of a hexagon, and the rack (100) can be understood as having the form of a hexagon. However, each layer (110) is not limited to a polygon and can be composed of a circle.

[0038] The elevator passage (120) is formed in the center of each floor (110). The elevator passage (120) can be formed by opening the center of each floor (110) and can be distinguished from the outer periphery (130) that is not opened in each floor (110).

[0039] Meanwhile, a frame structure may be formed at the edge of the elevator passage (120) to form each floor (110). In this case, each floor (110) can be understood to mean the same space as the outer periphery (130).

[0040] The above-mentioned elevator passage (120) is a space in which a storage item (50) is transported up and down, and more specifically, the storage item (50) can be moved from one floor to another floor through the above-mentioned elevator passage (120). At this time, it is also possible to move the storage item (50) from a floor equipped only with a storage space to another floor equipped only with a storage space.

[0041] The elevator passage (120) may be configured as a polygon, but is not limited thereto and may be configured as a circle. Meanwhile, although the shape of the elevator passage (120) is described as a two-dimensional figure projected onto each floor (110), it can be understood as a column shape in the entire rack (100) composed of multiple floors (110). That is, the elevator passage (120) can be understood as a three-dimensional shape such as a cylinder or a column. In the following description, the elevator passage (120) is described as a two-dimensional figure projected onto each floor (110).

[0042] The above-mentioned floor (110) is hexagonal in shape and the above-mentioned elevator passage (120) is hexagonal. Each floor (110) may be composed of a hexagonal frame structure and may be composed of a first member (131), a second member (132) that is hexagonal when viewed from above, and a third member (133) connecting the first member and the second member. Here, a hexagon refers to a polygon in which the sum of all interior angles is 720 degrees.

[0043] The first member (131) has a longer side than the second member (132), and the third member (133) may be disposed in the space between the first member (131) and the second member (132), and the first member (131), the second member (132), and the third member (133) may be positioned on a single plane to form each layer (110).

[0044] Meanwhile, the third member (133) may be configured to extend each corner of the first member (131) and each corner of the second member (132). However, it is not limited thereto, and may extend each side of the first member (131) and each side of the second member (132), and may connect either the corner or side of the first member (131) to the other of the corner or side of the second member (132).

[0045] The first member (131), second member (132), and third member (133) may be composed of square timbers, but are not limited thereto, and may include all configurations that function as beams configured to withstand a force perpendicular to the extension direction of the members.

[0046] Meanwhile, depending on the space arranged on each floor, the first member (131) may be understood as an outer member and the second member (132) as an inner member, and the third member (133) connecting the outer member (131) and the inner member (132) may be understood as a connecting member. At this time, the elevator passage (120) may be located in the space formed inside the inner member (132).

[0047] In another aspect, the first member (131) or the second member (132) may be composed of six components arranged on a single plane, and may also be understood as a regular hexagonal shape in which two components connected adjacently form an angle of 120 degrees.

[0048] Meanwhile, in another aspect, it can also be understood that the third member (133) is arranged radially from the center of each layer (110), the first member (131) is connected to the outer end of the third member (133), and the second member (132) is connected to the inner end of the third member (133).

[0049] The above slot (140) is formed on the outer periphery (130) of each layer (110) and provides a space for accommodating a storage item (50).

[0050] The above slots (140) may be arranged radially at a distance of 360 / n degrees from the center of each layer (110). This means that one slot and another slot located adjacent to it form an angle of 360 / n degrees from the center, and the number of slots may vary depending on the number of n.

[0051] For example, when n is 6, 6 slots are arranged radially with a 60-degree spacing from each other with respect to the center.

[0052] In the case where each layer (110) is a frame structure composed of an outer member (131), an inner member (132), and a connecting member (133), the slot (140) may be provided on the upper side of the outer member (131) and the inner member (132).

[0053] The above slot (140) comprises a slot storage portion (141) that forms the upper part and provides a space for accommodating the storage item, and a slot support portion (142) that forms the lower part and supports the storage item. Since the slot storage portion (141) is an empty space when no storage item is accommodated, the slot storage portion (141) can be understood as the upper space of the slot support portion (142).

[0054] The slot support (142) is composed of a sliding plate (143), a guide plate (144), and a floating plate (145).

[0055] The slot support members (142) are provided in pairs, spaced apart by a certain distance on both sides, and are located below both sides of the slot storage member (141). Here, both sides refer to both directions orthogonal to the direction from the center of the rack (100) toward the outside of the rack (100).

[0056] The above floating plate (145) includes a connecting portion (145-1) and a floating portion (145-2), wherein the connecting portion (145-1) is connected to the upper surface of the inner member (132) and the upper surface of the outer member (131), and the floating portion (145-2) is formed by extending a certain distance upward from one side of the connecting portion (145-1).

[0057] The sliding plate (143) is formed by being bent horizontally at the top of the floating part (145-2), and a pair of the sliding plates (143) are configured so that both sides of the lower surface of the storage item (50) come into contact, and become a supporting surface that distributes and supports the load of the storage item (50).

[0058] Meanwhile, a loader (65) of the transfer robot (60) may be temporarily positioned in the space where a pair of slot support members (142) are spaced apart. At this time, the floating member (145-2) can prevent interference between the vertical transfer device (65) and the inner member (132) by separating the sliding plate (143) from the upper surface of the outer member (131) and the upper surface of the inner member (132) by a certain distance.

[0059] The guide plate (144) guides the movement of the storage item (50) to prevent the storage item (50) from moving out of the space outside the slot (140). The guide plate (144) extends upward from one side of the sliding plate (143), and a pair of guide plates (144) guide each side of the storage item.

[0060] Although the sliding plate (143), guide plate (144), and floating plate (145) have been described as separate components depending on whether they come into contact with the storage item (50) and their functions, they can be formed by bending a single plate. The sliding plate (143) can be understood as the part that supports the load of the storage item (50), the guide plate (144) as the part located on the side of the storage item to prevent the storage item from escaping, and the floating plate (145) as the part that separates the sliding plate (143) and each layer (110) by a certain distance.

[0061] Meanwhile, the slot support (142) may be provided with a stopper (not shown), which can prevent the stored item (50) from being pushed outward and falling out. The stopper may be optionally fastened and may be removed when one slot is connected to another slot. Further details will be described later.

[0062] The above logistics storage system (10) may further include an outer column (151) that is configured to extend in the vertical direction and to which each vertex of the first member is joined.

[0063] The outer column (151) forms the corner of the rack (100), which is a polygonal column. Each layer (110) is located in the space between the multiple outer columns (151) and is positioned in the vertical direction at a certain distance from the ground.

[0064] Meanwhile, the logistics storage system (10) may further include an inner column (155) that is configured to extend in the vertical direction and is joined to at least three of the vertices of the second member (132).

[0065] The inner columns (155) may be arranged in an up-and-down direction along the elevator passage (120), and the transfer device (160) moves in an up-and-down direction along the plurality of inner columns (155).

[0066] The inner column (155) may be located at the boundary of the elevator passage (120), and the vertices of the second member (132) are connected to the inner column (155). However, not all vertices of the second member (132) are connected, and it may be configured so that only some of them are connected.

[0067] For example, the inner columns (155) are composed of three and are arranged radially at intervals of 120 degrees from the center, and only three of the six vertices of the second member (132), which is hexagonal, can come into contact with the inner columns (155). The inner columns (155) function as supports that allow the transfer device (160) to move up and down.

[0068] Meanwhile, by not connecting all vertices of the second member (132) to the inner column (155) and reducing the number of inner columns (155), the area in which the transfer device (160) can operate can be expanded and various motions can be taken.

[0069] The above logistics storage system (10) may be provided with three or more slots (140) in each layer (110), and when three slots are provided, the first member (131) and the second member (132) form a triangle when viewed from above, and the rack (100) has the shape of a triangular prism. Meanwhile, when four slots are provided, the first member (131) and the second member (132) form a quadrilateral when viewed from above, and the rack (100) has the shape of a square prism.

[0070] Preferably, the logistics storage system (10) may have six slots, in which case the first member (131) and the second member (132) are hexagonal when viewed from above, and the rack (100) has the shape of a hexagonal column.

[0071] Meanwhile, if the above slots (140) are arranged in such a way that the rack (100) has a hexagonal (hexagonal prism) shape, three racks (100, 200, 300) can be configured without any empty space at one corner (one side), and the direction of movement of adjacent slots can be aligned. This will be described later.

[0072] [Elevator Structure]

[0073] FIGS. 5 to 11 are drawings illustrating a transfer device in a logistics storage system according to a first embodiment. FIG. 5 is a drawing of the transfer device in a state where it has moved downward in the logistics storage system according to the first embodiment, FIG. 6 is a drawing of the transfer device in a state where it has moved upward in the logistics storage system according to the first embodiment, FIG. 7 is a drawing of the transfer device in a state where it has moved upward and rotated in one direction in the logistics storage system according to the first embodiment, FIG. 8 is a drawing of the transfer device in a state where it has moved upward and rotated in the other direction in the logistics storage system according to the first embodiment. FIG. 9 is a perspective view of the transfer device according to the first embodiment, FIG. 10 is an exploded perspective view of the transfer device according to the first embodiment, and FIG. 11 is a perspective view of a gripper according to the first embodiment.

[0074] The above transfer device (160) comprises: a lift body (165) having an opening formed in the center; an inter-floor transfer device (170) fixed to the outer periphery of the lift body (165) and contacting one side of the inner column (155) to transfer the lift body (165) up and down through relative movement with the inner column (155); a rotating device (180) positioned on one side of the opening; and a gripper (190) connected to the rotating device (180) to selectively secure the transfer robot (60).

[0075] The lift body (165) is formed to have a diameter smaller than the cross-section of the lifting passage (120) so that it can move through the lifting passage (120). Meanwhile, the lift body (165) may be composed of a disc, but is not limited thereto, and may have the same shape as the lifting passage (120).

[0076] The above-mentioned inter-floor transfer device (170) is located on the outer periphery of the lift body (165). At this time, the lift body (165) may include a lift motor mounting part (173) that is formed by protruding a certain distance outward from the outer surface.

[0077] The above inter-floor transfer device (170) includes a lift motor (174) and a wheel (176).

[0078] The lift motors (174) may be configured in n numbers and are spaced apart at intervals of 360 / n degrees around the opening of the lift body. When there are three inner columns (155), there may be three lift motors (174) and they are spaced apart at intervals of 120 degrees around the opening and arranged radially.

[0079] The wheel (176) rotates by the driving force of the lift motor (174) and can move up and down along the inner column (155) by contacting one surface of the inner column (155). Special processing may be performed on the contact surface between the wheel (176) and the inner column (155) to increase friction, and it is also possible to configure the wheel (176) as a pinion and the contact surface of the inner column (155) as a rack.

[0080] The above interlayer transfer device (170) may further include a first driving force transmission unit (175).

[0081] The first driving force transmission unit (175) transmits the driving force of the lift motor (174) to the wheel (176) and connects the drive shaft of the lift motor (174) and the rotation axis of the wheel (176). The first driving force transmission unit (175) may be composed of a bevel gear, and the bevel gear can transmit the driving force to the rotation axis of the wheel (176) that intersects the drive shaft of the lift motor (174). The bevel gear is configured to correspond to the number of lift motors (174).

[0082] The above transfer device (160) may further include a lift cover (167). The lift cover (167) is coupled to the upper surface of the lift body (165) and covers a portion of the upper space of the lift body (165). The rotating device (180) may be accommodated in the space between the lift body (165) and the lift cover (167).

[0083] The above-described rotating device (180) comprises: a rotating motor (181) capable of bidirectional rotation; a rotating plate (182) located on the lower side of the lift body and rotated by the driving force of the rotating motor; and a rotating shaft (183) that penetrates the lift body through the opening, has one end connected to the rotating motor (181), and the other end connected to the upper part of the rotating plate (182) to transmit the driving force of the rotating motor to the rotating plate.

[0084] The above-mentioned rotating device (180) may further include a second driving force transmission unit (185).

[0085] The second driving force transmission unit (185) transmits the driving force of the rotary motor (180) to the rotary shaft (183) and connects the drive shaft of the rotary motor (180) and the rotation axis of the rotary shaft (183). The second driving force transmission unit (185) may be composed of a bevel gear, and the bevel gear can transmit the driving force to the rotation axis of the shaft (183) that intersects the drive shaft of the rotary motor (180). The bevel gear is configured to correspond to the number of rotary motors.

[0086] The gripper (190) comprises a pair of fixing parts (191) each connected to both sides of the rotating plate (182), a pair of pressing parts (192) each having an upper part fixed to the pair of fixing parts (191) and a lower part pressing both sides of the transfer robot (60) to fix the transfer robot (60), and a distance adjusting part (193) located between the pair of pressing parts to adjust the distance between the pair of pressing parts.

[0087] The distance adjustment unit (193) comprises: a motor (194) capable of rotating in forward and reverse directions; a screw (195) that is rotated by the motor (194) and has screw threads formed in different directions on both sides; a pair of ball nuts (196) each coupled to the screw threads in different directions; and a pair of ball nut fixing units (197), one end of which is coupled to the pair of ball nuts (196) and the other end of which is connected to the inner surface of the pair of pressure units (192).

[0088] Since the screw above may have one side configured with right-hand threads and the other side configured with left-hand threads, the gap between a pair of ball nuts decreases when the screw rotates in one direction and increases when it rotates in the other direction.

[0089] The operation of the above distance adjustment unit is as follows. When the motor is activated, the screw rotates in one direction, and as the ball nut fixing parts move in different directions, the distance separated between a pair of pressure parts decreases or increases.

[0090] The above-mentioned transfer robot (60) is a device for transferring the above-mentioned storage material in a flat manner and includes a robot body, a storage unit in which the storage material is temporarily stored, a wheel drive unit that moves the robot body by relative motion with the ground, and a loader that takes out and puts the storage material.

[0091] The loader is located on the upper side of the robot body, and the storage unit is provided on the upper side of the loader. The loader is withdrawn forward to transport the stored material forward, and the loader is retracted to transport the stored material to the storage unit.

[0092] [Second Embodiment]

[0093] FIGS. 12 to 15 are drawings illustrating a logistics storage system according to a second embodiment of the technology described herein, where FIG. 12 is a front view of the logistics storage system according to the second embodiment, FIG. 13 is a perspective view of the logistics storage system according to the second embodiment, FIG. 14 is a perspective view illustrating each layer of the logistics storage system according to the second embodiment, and FIG. 15 is a layout diagram of the logistics storage system according to the technology described herein.

[0094] A logistics storage system according to a second embodiment may include one or more racks (100, 200, 300). When the racks (100, 200, 300) are configured in a hexagonal shape, three racks (100, 200, 300) may be arranged so as to be in contact with each other at one corner (A) without any empty space.

[0095] For the explanation of the logistics storage system according to the second embodiment, the explanation will focus on two adjacent racks (100, 200).

[0096] The above logistics storage system (10) comprises: a first rack (100) composed of a plurality of first layers; a first lifting passage (120) formed by penetrating the first center of each layer; a first slot (140) arranged radially at a certain angle apart from the first lifting passage; a first transfer device (160) installed in the first lifting passage to transfer stored items; a second rack (200) composed of a plurality of second layers located at the same height as the plurality of first layers; and a second slot (240) arranged radially at a certain angle apart from the center of the second rack.

[0097] The above logistics storage system (10) further includes a second elevator passage (220) formed by penetrating the second center of each second layer; and a second transfer device (260) installed in the second elevator passage to transfer the stored items.

[0098] The first rack (100) and the second rack (200) are configured in the shape of hexagonal columns, and the first rack (100) and the second rack (200) are installed adjacently to have a single contact surface (B). The two racks are arranged symmetrically with respect to the contact surface.

[0099] The first layer (110) of the first rack (100) and the second layer (210) of the second rack (200) are located at the same height from the ground. For example, the sixth layer of the first rack may be located at the same height as the sixth layer of the second rack, and it can be understood that the two layers are spatially connected as one layer through a contact surface (B).

[0100] Meanwhile, the first slot (140) may include a first interlocking slot (148) that interlocks with the second rack through the contact surface (B), and the second slot (240) may include a second interlocking slot (248) that interlocks with the first rack through the contact surface (B).

[0101] When the first rack (100) and the second rack (200) are hexagonal, the first slot (140) and the second slot (240) are configured with six slots each on each layer. Among the 12 slots arranged on each layer, the first interlocking slot (148) and the second interlocking slot (248) that are in contact with the contact surface (B) are partitioned into a single space through the contact surface (B) and can be operated in conjunction with each other. That is, the stored items in the first interlocking slot (148) can pass through the contact surface and move to the first interlocking slot (248).

[0102] In another aspect, the first slot support (142) includes a first interlocking slot support (149) in contact with the contact surface (B), and the second slot support (242) includes a second interlocking slot support (249) in contact with the contact surface (B), and it can be understood that a storage located on the upper side of the first interlocking slot support (149) can slide to the upper side of the second interlocking slot support (249) located on the same layer.

[0103] According to the second embodiment, when the first transfer device (160) receives a new storage item into the first interlocking slot (148), the new storage item can pressurize the existing storage item stored in the first interlocking slot (148) and slide it into the second interlocking slot (248), and the existing storage item slid into the second interlocking slot (248) can be released through the second lifting passage by the second transfer device (260).

[0104] In the operation method of such a logistics storage system, when simultaneous take-out and take-out commands occur in multiple slots located on a single rack, the transfer robot that arrives first moves the multiple stored items for which commands occurred to an adjacent rack, allowing another transfer robot to process the stored items through the adjacent rack, thereby effectively creating an alternative path.

[0105] Meanwhile, the above logistics storage system may further include an extension slide plate (1343) in which both ends are connected to the first rack (100) and the third rack (300), respectively, and which forms the support surface of the first interlocking slot (148) and the support surface of the third interlocking slot (348). The extension slide plate (1343) connects the first rack (100) and the third rack (300) as a whole and can support the first interlocking slot (148) and the third interlocking slot (348) as a single member, which is economical and can prevent malfunctions caused by jamming compared to configuring separate slide plates.

[0106] Meanwhile, the logistics storage system may further include an expansion guide plate (1344) that extends upward from one side of the expansion slide plate (1343) and guides the side of the first interlocking slot (148) and the side of the third interlocking slot (348). The expansion guide plate (1344) can also increase the economic efficiency of the logistics storage system and prevent malfunctions, just like the expansion slide plate (1343).

[0107] The foregoing embodiments are intended to illustrate, not limit, the technology described herein, and the concept and scope of the technology described herein are not limited by these embodiments. The scope of rights of the technology described herein shall be interpreted by the claims below, and all technology within an equivalent scope shall be interpreted as being included within the scope of rights of the technology described herein.

[0108] According to the technology described herein, space utilization can be increased by radially arranging slots in which items are stored on multiple layers, and additional expansion is easy without changing the design of the existing structure as additional racks can be installed, and two opposing slots can share a movement path with each other, thereby improving accessibility to the items.

[0109] [Explanation of the symbol]

[0110] 10: Logistics Storage System 50: Stored Goods

[0111] 60: Transfer robot 65: Loader

[0112] 100: Rack 110 each floor

[0113] 120: Elevator passageway 130: Exterior perimeter

[0114] 131: 1st part 132: 2nd part

[0115] 133: Third Part 140: Slot

[0116] 141: Slot storage part 142: Slot support part

[0117] 143: Sliding plate 144: Guide plate

[0118] 145: Floating Plate 145-1: Joint

[0119] 145-2: Floating section 148: 1st interlocking slot

[0120] 149: First interlocking slot support 151: Outer column

[0121] 155: Inner column 160: Transfer device

[0122] 165: Lift main body 167: Lift cover

[0123] 170: Inter-floor transfer device 173: Lift motor mounting part

[0124] 174: Lift motor 175: First driving force transmission unit

[0125] 176: Wheel 180: Rotating device

[0126] 181: Rotating motor 182: Turntable

[0127] 183: Rotating shaft 185: Second driving force transmission unit

[0128] 190: Gripper 191: Fixed part

[0129] 192: Pressurizing part 192-1: Fastening block

[0130] 193: Distance control unit 194: Motor

[0131] 195: Screw 196: Ball nut

[0132] 197: Ball nut fixing part 1343: Extension slide plate

[0133] 1344: Extension Guide Plate 200 2nd Rack

[0134] 240 2nd slot 242: 2nd slot support

[0135] 248: Second interlocking slot 249: Second interlocking slot support

[0136] 260: 2nd transfer device 300 3rd rack

[0137] 348: 3rd Interlocking Slot

Claims

1. A rack consisting of multiple individual layers; An elevator passage formed at the center of each of the above-mentioned floors; A slot formed on the outer side of each of the above layers and configured to allow a storage material to be placed therein; and A transfer device installed in the above elevator passage to transport the above-mentioned storage material Includes, A logistics storage system in which n slots are configured on each of the above floors, arranged radially at intervals of 360 / n degrees centered on the elevator passage, and n is a natural number greater than or equal to 3.

2. In Paragraph 1, A logistics storage system in which n is 6 and the slots are spaced apart at 60-degree intervals centered on the elevator passage.

3. In Paragraph 2, Each of the above layers is, A first member and a second member having a hexagonal shape when viewed from above; and It is composed of a frame structure comprising a third member that connects one side of the first member to one side of the second member, and A logistics storage system in which the length of one side of the first member is longer than the length of one side of the second member.

4. In Paragraph 3, The above slot is, A slot storage portion constituting the upper portion and providing a space for accommodating the storage material; and A slot support member that forms the lower portion and is fastened to the upper surface of the first member and the upper surface of the second member to support the storage material. Includes, The above slot support is, A slide plate forming a support surface of the above storage material; and A guide plate formed by extending upward from one end of the slide plate and guiding the movement of the storage material. A logistics storage system including 5. In Paragraph 3, It further includes a plurality of outer columns that extend in the vertical direction and to which each corner of the first member is joined, A logistics storage system in which each of the above layers is located in the space between the plurality of outer columns and is positioned in an upward and downward direction at a certain distance interval parallel to the ground.

6. In Paragraph 3, It further includes a plurality of inner columns that extend in the vertical direction and each corner of three or more of the vertices of the second member is joined, A logistics storage system in which the above-mentioned transfer device moves up and down along the plurality of inner columns.

7. In Paragraph 6, The above transfer device is, A lift body having an opening in the center; An inter-floor transfer device disposed on the outer periphery of the lift body and contacting one side of the inner column to transfer the lift body up and down through relative movement with the inner column; A rotating device installed by penetrating the lift body through the opening and rotating by relative motion with the lift body; and A gripper connected to the above-mentioned rotating device that presses and restrains the transfer robot A logistics storage system including 8. In Paragraph 7, The inner columns are arranged radially at 120-degree intervals centered on the elevator passage, and The above interlayer transfer device is, Three lift motors arranged radially at 120-degree intervals centered on the opening of the lift body; and A wheel that rotates by the driving force of the lift motor and moves up and down along the inner column while in contact with one surface of the inner column. A logistics storage system including 9. In Paragraph 8, The above-mentioned rotating device is, A rotary motor installed on the upper surface of the above-mentioned lift body and capable of bidirectional rotation; A rotating plate installed on the lower side of the lift body and rotated by relative movement with the lift body; and A shaft that penetrates the lift body through the opening, with its upper end connected to the rotary motor and its lower end connected to the upper part of the rotating plate, and transmits the driving force of the rotary motor to the rotating plate. A logistics storage system including 10. A first rack composed of multiple first layers; A first elevator passage formed by penetrating the first center of each of the first layers; First slots arranged radially at a certain angle apart from the first elevator passage; A first transfer device installed in the first elevator passage to transfer stored items; A second rack comprising a plurality of second layers located at the same height as the plurality of first layers; and Second slots arranged radially, spaced at a certain angle from the second center of each of the second layers above. Includes, Each of the first rack and the second rack is configured in the shape of a hexagonal column, and The first rack and the second rack are installed to have a single contact surface, and The first slot above includes a first interlocking slot that contacts the contact surface, and The above second slot includes a second interlocking slot that contacts the above contact surface, and A logistics storage system in which a stored item located in the first interlocking slot can slide to the second interlocking slot located on the same floor.

11. In Paragraph 10 When the first transfer device puts the first storage item into the first interlocking slot, A logistics storage system that pressurizes a second storage item located in the first interlocking slot and slides it to the second interlocking slot.

12. In Paragraph 11, A second elevator passage formed by penetrating the second center of each of the second layers; and A second transfer device installed in the second elevator passage to transfer the storage material. Includes more, A logistics storage system in which the second storage item, which is slidably moved to the second interlocking slot, is moved through the second lifting passage by the second transfer device.

13. In Paragraph 12, An expansion slide plate having both ends respectively coupled to the first rack and the second rack, forming a support surface of the first interlocking slot and a support surface of the second interlocking slot; and An expansion guide plate extending upward from one side of the slide plate and guiding the side of the first interlocking slot and the side of the second interlocking slot. A logistics storage system that further includes

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