Rotating Rack System

Abstract

The present invention enables a plurality of storage units to be stably rotated up and down by combining a rotary drive unit coupled to a frame, allowing the user to safely and conveniently retrieve items after stopping the storage units at a desired position. Furthermore, by arranging satellite sprockets along with main sprockets at the top and bottom, the size of the rotational trajectory can be adjusted flexibly and easily, making it possible to design rotational trajectories of various sizes. As a result, by adjusting the rotational trajectory to suit the items to be stored, it is possible to easily manufacture rotary rack systems of various sizes that can be applied to a wide range of products.

Description

Technology Field

[0001] The present invention relates to a rotating rack system. Background Technology

[0002] In spaces such as work sites, warehouses, and production lines, products, parts, and materials of various sizes and shapes are frequently received and shipped out, making it essential to provide areas for their temporary storage or organization. When storing products or parts, common methods include stacking them directly on the floor, stacking items, or placing them on multi-tier shelves (racks).

[0003] While this method has the advantages of being structurally simple and having no or minimal initial installation costs, stacking products on the floor or placing them in multiple layers on shelves makes it difficult to identify items located at the bottom, and even if the contents are known, retrieving them requires a significant amount of time and labor. In particular, when heavy products are stacked in multiple layers, removing all items from the top to retrieve items located at the bottom requires a large amount of labor from workers, and there is also a possibility of safety accidents such as damage to products, falling items, machine damage, or personal injury. Prior art literature

[0004] Korean Registered Patent (10-1343260) The problem to be solved

[0005] The objective of the present invention is to provide a rotary rack system capable of solving the aforementioned problems. means of solving the problem

[0006] A rotary rack system for achieving the above purpose is,

[0007] A frame comprising a pair of first frames spaced apart from each other and a second frame connecting the pair of first frames;

[0008] A plurality of storage units disposed between the above-mentioned pair of first frames and storing items; and

[0009] It includes a rotary electric unit installed on the above frame and rotating the plurality of storage units in the vertical direction,

[0010] The above rotary electric unit is,

[0011] Upper main sprocket coupled to the upper part of each first frame;

[0012] Upper satellite sprockets positioned on both sides of the upper main sprocket;

[0013] Lower main sprocket coupled to the lower part of each first frame;

[0014] Lower satellite sprockets positioned on both sides of the lower main sprocket;

[0015] A rotating chain guided along the upper main sprocket, the upper satellite sprocket, the lower main sprocket, and the lower satellite sprocket;

[0016] A power transmission sprocket that transmits rotational force to the upper main sprocket;

[0017] A power transmission chain coupled between the above-mentioned power transmission sprocket and the above-mentioned upper main sprocket;

[0018] Idlers positioned on both sides of the upper main sprocket and guiding the transmission chain to the main sprocket;

[0019] A reduction gear and a motor located on the upper part of either of the above pair of first frames and driving the electric sprocket on the side where they are located; and

[0020] It includes a synchronization shaft that synchronizes the rotation of the electric sprocket connected to the above-mentioned reduction gear and motor with the opposite electric sprocket. Effects of the invention

[0021] The present invention enables a plurality of storage units to be stably rotated up and down by combining a rotary drive unit coupled to a frame, allowing the user to safely and conveniently retrieve items after stopping the storage units at a desired position. Furthermore, by arranging satellite sprockets along with main sprockets at the top and bottom, the size of the rotational trajectory can be adjusted flexibly and easily, making it possible to design rotational trajectories of various sizes. As a result, by adjusting the rotational trajectory to suit the items to be stored, it is possible to easily manufacture rotary rack systems of various sizes that can be applied to a wide range of products.

[0022] The present invention places driving members, such as a motor and a reduction gear, on the upper part of a frame and configures the lower main sprocket to be movable up and down relative to the first frame, thereby allowing the tension of the rotating chain, which changes due to sagging in the direction of gravity, to be easily adjusted, which significantly improves driving stability and maintainability.

[0023] The present invention connects a rotating chain and a storage unit via a link member rather than directly coupling them, thereby preventing the movement or vibration of the rotating chain from being directly transmitted to the storage unit, which in turn prevents shaking or positional errors in the storage unit. Furthermore, independent movement between the rotating chain and the storage unit is enabled, improving operational stability and ensuring flexibility in various position adjustments and fastening. Additionally, since the rotating chain is composed of a double-pitch roller chain, the fastening member can be fastened in the middle of the pitch interval when connecting the storage unit via the link member. This prevents interference with the sprocket even when the rotating chain engages with it, allowing the storage unit to move together with the rotating chain while remaining coupled to it. Brief explanation of the drawing

[0024] FIGS. 1 and FIGS. 2 are drawings showing a rotating rack system according to an embodiment of the present invention. FIG. 3 is a drawing showing a state in which a tool box is mounted on a rotary rack system according to one embodiment of the present invention, and for convenience, only two storage units are connected. FIG. 4 is a drawing showing a first frame combined with a rotary transmission unit, and a first frame on the side equipped with a reduction gear and a motor. Figure 5 is a drawing of the lower part of the first frame. Figure 6 is an enlarged view of part A shown in Figure 2. Figure 7 is a drawing showing the link member illustrated in Figure 6. Figure 8 is a drawing showing a rotating chain and a lower satellite sprocket that meshes with the rotating chain. FIG. 9 is a drawing showing a rotating rack system according to one embodiment of the present invention used for tire storage. FIG. 10 is a drawing showing a rotating rack system according to one embodiment of the present invention used for storing tool boxes. Specific details for implementing the invention

[0025] Hereinafter, a rotating rack system according to one embodiment of the present invention will be described.

[0026] As illustrated in FIGS. 1 to 4, a rotary rack system according to one embodiment of the present invention is composed of a frame (100), a storage unit (200), and a rotary electric unit (300).

[0027] [Frame(100)]

[0028] The frame (100) is fixed to the ground. A storage unit (200) and a rotary motor unit (300) are installed on the frame (100).

[0029] The frame (100) consists of first frames (110) and second frames (120).

[0030] A pair of first frames (110) are spaced apart from each other. It is preferable that each first frame (110) be a rectangular shape with a constant height and width.

[0031] The second frame (120) supports each first frame (110) by connecting them to one another. The second frame (120) connects the top and bottom or middle of both first frames (110) and may be in the form of a horizontal beam or a reinforcing rib.

[0033] [Storage Unit (200)]

[0034] A storage unit (200) is positioned between a pair of first frames (110) and stores items. Multiple storage units (200) are provided, and the number of storage units (200) is adjusted according to use.

[0035] The storage unit (200) can be formed in various ways depending on the item to be stored. As shown in FIG. 9, if the item is a tire, it can be formed in the form of a shelf, and as shown in FIG. 10, if the item is a tool, it can be formed in the form of a frame (100) in which unit tool boxes containing the tool are detachably connected. This embodiment is described as an example of a storage unit (200) for a tool box.

[0036] The storage unit (200) is connected to the rotating chain (305) of the rotating electric unit (300) at regular intervals and rotates up and down along the rotating chain (305).

[0037] At this time, the storage unit (200) is not directly connected to the rotating chain (305), but is connected through a link member (400) interposed between the rotating chain (305) and the storage unit (200), and the link member (400) guides the storage unit (200) to rotate while maintaining a vertical state according to the rotation of the rotating chain (305).

[0039] [No Link (400)]

[0040] As illustrated in FIGS. 6 and 7, the link member (400) is composed of a link body (410) and a blocking plate (420). Since the rotating chain (305) and the storage unit (200) are not directly connected but are connected through the link member (400), interference between the rotating chain (305) and the storage unit (200) is prevented, and vibrations or rotational imbalances of the rotating chain (305) are not directly transmitted to the storage unit (200), thereby ensuring stability during operation.

[0041] Link body (410)

[0042] The link body (410) connects the rotating chain (305) and the storage unit (200). The link body (410) is formed in a shape where a vertical plate is bent at an angle in one direction and then bent again in the opposite direction to extend vertically, and is divided into three areas by the bending: a chain connection part (411), a storage unit connection part (412), and an intermediate connection part (413).

[0043] The chain connection part (411) is connected so that the rotating chain (305) can move relative to it. The chain connection part (411) is connected to the intermediate hole (S) of the pitch spacing of the rotating chain (305), which will be described later, through a fastening member (P1) of a bolt-nut fastening or pin insertion type.

[0044] The storage unit connecting part (412) is connected so that the storage unit (200) can move relative to it. The storage unit connecting part (412) is connected in such a way that a first elongated hole (H1) is formed in the vertical direction and a protruding pin (201) attached to both ends of the storage unit (200) is inserted into the first elongated hole (H1) and caught.

[0045] The intermediate connecting part (413) is bent and extended from the chain connecting part (411) and the storage unit connecting part (412), and separates the chain connecting part (411) and the storage connecting part from each other. Since the rotating chain (305) and the storage unit (200) are separated through the intermediate connecting part (413), the rotating chain (305) and the storage unit (200) can be connected and operated without interference with each other. A second elongated hole (H2) is formed in the intermediate connecting part (413) and is in communication with the first elongated hole (H1), and is wider than the first elongated hole (H1). The head portion of the protruding pin (201) of the storage unit (200) is inserted through the second elongated hole (H2) and positioned in the first elongated hole (H1).

[0046] The protruding pin (201) of the storage unit (200) can be moved along the first slot (H1) and the second slot (H2) of the link body (410).

[0047] Block plate (420)

[0048] The blocking plate (420) is positioned across the second slot (H2) and bolted to the link body (410).

[0049] The blocking plate (420) prevents the protruding pin (201) of the storage unit (200) from moving into the second slot (H2) and separates, and limits the vertical movement range of the protruding pin (201) to control the movement clearance range of the storage unit (200).

[0051] [Rotary electric unit (300)]

[0052] The rotary motor unit (300) is installed on the frame (100) and rotates and moves a plurality of storage units (200) in the up and down direction.

[0053] As illustrated in FIGS. 1 to 4, the rotary drive unit (300) is composed of an upper main sprocket (301), an upper satellite sprocket (302), a lower main sprocket (303), a lower satellite sprocket (304), a rotary chain (305), a drive sprocket (306), an idler (307), a drive chain (308), a tuning shaft (309), a reduction gear (310), and a motor (311).

[0054] upper main sprocket (301)

[0055] The upper main sprocket (301) is coupled to the upper part of each first frame (110). The upper main sprocket (301) is a sprocket through which the rotational force of the motor (311) is transmitted, and is formed to be the largest in size.

[0056] Upper satellite sprocket (302)

[0057] The upper satellite sprocket (302) is positioned on both sides of the upper main sprocket (301). The upper satellite sprocket (302) is coupled to the upper part of each first frame (110) together with the upper main sprocket (301) and is positioned lower than the upper part of the upper main sprocket (301). The trajectory size of the rotation chain (305) is determined by the distance and height from the upper main sprocket (301).

[0058] Lower main sprocket (303)

[0059] The lower main sprocket (303) is coupled to the lower part of each first frame (110). The center of the lower main sprocket (303) corresponds to the upper main sprocket (301) and is positioned on the same line as the center of the upper main sprocket (301). Since the lower main sprocket (303) is not a sprocket to which the motor (311) is connected to transmit rotational force, it does not need to be as large as the upper main sprocket (301), and it is preferable that it be smaller than the upper main sprocket (301) in consideration of the load.

[0060] As illustrated in FIG. 4, the lower main sprocket (303) is configured to be movably coupled to the first frame (110) in the vertical direction so as to adjust the tension of the rotation chain (305). For example, as illustrated in FIG. 5, a vertical rail (111) is formed at the bottom of the first frame (110), and the lower main sprocket (303) is connected to the vertical rail (111) via a moving block (112) so as to be movable in the vertical direction, and the height of the lower main sprocket (303) can be fixed by fixing the moving block (112). The rotation chain (305) may sag due to gravity and the tension may be weakened, but by placing the heavy reduction gear (310) and motor (311) at the top and only the lower main sprocket (303) at the bottom, the position of the lower main sprocket (303) can be easily adjusted, and thus the tension of the rotation chain (305) can be easily adjusted.

[0061] Lower satellite sprocket (304)

[0062] The lower satellite sprocket (304) is positioned on both sides of the lower main sprocket (303). The lower satellite sprocket (304) is coupled to the lower part of each first frame (110) together with the lower main sprocket (303) and is positioned higher than the lower part of the lower main sprocket (303). The center of the lower satellite sprocket (304) corresponds to the upper satellite sprocket (302) and is positioned in alignment with the center of the upper satellite sprocket (302). As with the upper satellite sprocket (302), the trajectory size of the rotation chain (305) is determined by the distance and height from the lower main sprocket (303).

[0063] When using only the main sprocket, the size of the rotational trajectory of the rotating chain (305) depends on the size of the main sprocket, so there is a limit to increasing the rotational trajectory (width). However, by placing a satellite sprocket around the main sprocket in this way, the rotational trajectory (width) can be adjusted flexibly and easily by adjusting the size of the main sprocket and the position of the satellite sprocket.

[0064] Rotating chain (305)

[0065] The rotating chain (305) is guided along the upper main sprocket (301), upper satellite sprocket (302), lower main sprocket (303), and lower satellite sprocket (304).

[0066] As illustrated in FIG. 8, the rotating chain (305) is made of a double pitch roller chain, and a storage unit (200) is connected to the middle hole (S) of the pitch interval of the double pitch roller chain. A fastening member (P1) for connecting the storage unit (200) passes through the middle hole (S).

[0067] A double-pitch roller chain is a chain with a pitch twice as long as a standard roller chain. Pitch refers to the distance from the center of one pin to the center of the next pin in a chain.

[0068] Since the rotation chain (305) is double pitch for the standard pitch, that is, the upper main sprocket (301), upper satellite sprocket (302), lower main sprocket (303), and lower satellite sprocket (304), when the rotation chain (305) engages with each sprocket, two teeth are positioned between the two pins of the rotation chain (305), and the middle of the distance between the two pins, that is, the middle hole (S) of the pitch interval of the rotation chain (305), is positioned in the space between the two teeth.

[0069] As a result, even if the sprocket is engaged with the rotating chain (305) while the fastening member (P1) has passed through the middle hole (S), the fastening member (P1) is positioned between the teeth of the sprocket, thereby avoiding interference.

[0070] Electric sprocket (306)

[0071] The electric sprocket (306) transmits rotational force to the upper main sprocket (301). The electric sprocket (306) is coupled to the upper part of each first frame (110) and is spaced apart from the lower part of the upper main sprocket (301).

[0072] Electric chain (308)

[0073] The power transmission chain (308) is connected between the power transmission sprocket (306) and the upper main sprocket (301). The power transmission chain (308) is a standard roller chain. Since the rotation chain (305) is connected to the top of the upper main sprocket (301) and the power transmission chain (308) is connected to the bottom, the rotation chain (305) and the power transmission chain (308) do not interfere with each other.

[0074] Idler (307)

[0075] The idler (307) is positioned on both sides of the upper main sprocket (301) and guides the power transmission chain (308) to the main sprocket.

[0076] Reducer (310) and motor (311)

[0077] The reduction gear (310) and motor (311) are installed on only one of the pair of first frames (110) and drive the electric sprocket (306) on the side where they are located.

[0078] Synchronizing axis (309)

[0079] The synchronization shaft (309) connects the electric sprocket (306) installed on one first frame (110) and the electric sprocket (306) installed on the other first frame (110). The synchronization shaft (309) transmits the driving force of the motor (311) installed only on one first frame (110) to the electric sprocket (306) installed on the other first frame (110), thereby synchronizing the rotation of both electric sprockets (306).

[0081] The operation of a rotary rack system according to one embodiment of the present invention will be described below.

[0082] Basically, refer to Figures 1 to 10.

[0083] When a user operates an operating switch to access a specific storage unit (200) or to retrieve items, the motor (311) of the rotary electric unit (300) is driven, and the rotational force reduced through the reduction gear (310) is transmitted to the electric sprocket (306) connected to the reduction gear (310). The rotational force is also transmitted to the electric sprocket (306) of the opposite first frame (110) through the synchronization shaft (309).

[0084] The electric sprocket (306) rotates the upper main sprocket (301) through the electric chain (308), and the upper satellite sprocket (302) also rotates together with it. The rotation of the upper main sprocket (301) is transmitted to a rotation chain (305) made of a double-pitch roller chain, and the rotation chain (305) continuously rotates in a cyclic manner along the upper main sprocket (301), upper satellite sprocket (302), lower main sprocket (303), and lower satellite sprocket (304) installed on the first frame (110).

[0085] Since a storage unit (200) is connected to the rotating chain (305) at regular intervals via a link member (400), the storage unit (200) also moves as a whole and circulates in the up and down direction according to the rotation of the rotating chain (305). The storage unit (200) moves repeatedly along a trajectory in which it rises upward and moves forward according to the rotational movement of the rotating chain (305), then descends downward, passes through the rear, and rises again. The rotation direction of the rotating chain (305) may be in the opposite direction depending on the use.

[0086] Since the storage unit (200) is not directly connected to the rotating chain (305) but is connected through a link member (400), the movement or vibration of the rotating chain (305) is not directly transmitted to the storage unit (200), allowing for stable movement.

[0087] In addition, the lower main sprocket (303) located in the downward section of the rotating chain (305) is configured to be movable up and down relative to the first frame (110), so that the height of the sprocket can be adjusted according to the sagging or tension change of the chain to maintain appropriate tension.

[0088] The rotating rack system of the present invention configured in this manner can stably rotate a plurality of storage units (200) up and down, and allows the user to safely and conveniently retrieve items after stopping the storage unit (200) at a desired position. Explanation of the symbols

[0089] 100: Frame 110: 1st Frame 111: Vertical rail 112: Moving block 120: 2nd Frame 200: Storage Unit 201: Protruding pin 300: Rotary electric unit 301: Upper main sprocket 302: Upper satellite sprocket 303: Lower main sprocket 304: Lower satellite sprocket 305: Rotary chain 306: Power sprocket 307: Idler 308: Electric chain 309: Tuning shaft 310: Reducer 311: Motor 400: Link member 410: Link body 420: Block plate 411: Chain connector 412: Storage unit connector 413: Intermediate connection H1: 1st slot H2: Second slot P1: Fastening member S: Pitch spacing middle hole

Claims

Claim 1 A frame comprising a pair of first frames spaced apart from each other and a second frame connecting the pair of first frames; a plurality of storage units disposed between the pair of first frames and storing items; The apparatus includes a rotary drive unit installed on the frame and rotating the plurality of storage units in an up-and-down direction, wherein the rotary drive unit comprises: an upper main sprocket coupled to the upper part of each first frame; upper satellite sprockets disposed on both sides of the upper main sprocket; a lower main sprocket coupled to the lower part of each first frame; lower satellite sprockets disposed on both sides of the lower main sprocket; a rotational chain guided along the upper main sprocket, the upper satellite sprocket, the lower main sprocket, and the lower satellite sprocket; a drive sprocket that transmits rotational force to the upper main sprocket; a drive chain coupled between the drive sprocket and the upper main sprocket; an idler disposed on both sides of the upper main sprocket and guiding the drive chain to the main sprocket; a reduction gear and a motor located on the upper part of one of the pair of first frames and driving the drive sprocket on the side where it is located; A rotary rack system comprising a synchronization shaft that synchronizes the rotation of a drive sprocket connected to the reduction gear and motor and an opposite drive sprocket. Claim 2 A rotating rack system according to claim 1, characterized in that the lower main sprocket is coupled to the first frame so as to be movable in the vertical direction, thereby being configured to adjust the tension of the rotating chain. Claim 3 A rotating rack system according to claim 1, wherein the rotating chain is composed of a double-pitch roller chain, and the storage unit can be connected in the middle of the pitch interval of the double-pitch roller chain. Claim 4 A rotating rack system according to paragraph 3, wherein the storage unit is connected through a link member interposed between the rotating chain and the storage unit, and the link member guides the storage unit to rotate while maintaining a vertical state according to the rotation of the rotating chain. Claim 5 In claim 4, the link member comprises: a link body comprising a chain connecting portion connected to allow relative movement of the rotating chain, a storage unit connecting portion connected to allow relative movement of the storage unit, and an intermediate connecting portion bent and extended from the chain connecting portion and the storage unit connecting portion to separate the chain connecting portion and the storage unit connecting portion from each other; and a rotating rack system comprising a control plate coupled to the link body to control the movement clearance of the storage unit.

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