Module shelf structure using multi-joint system

WO2026177308A1PCT designated stage Publication Date: 2026-08-27LEE KYU HYUN
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Patent Information

Application Number
PCT/KR2025/019277
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2025-02-20
Filing Date
2025-11-20
Publication Date
2026-08-27

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Abstract

The present invention relates to a module shelf structure using a multi-joint system, in which shelves are connected to support pipes via connection pipes and multi-joints on a wall surface or a floor of a building as a support base so that products and the like can be displayed and, more specifically, the module shelf structure comprising: a plurality of support pipes (10); a plurality of connection pipes (30) vertically connected to the ends of the respective support pipes (10) or between the support pipes (10); a plurality of multi-joints (40) of which one sides are connected to be fitted onto the outer circumferences of the respective connection pipes (30) and arranged at the same height; and shelves (50) horizontally seated and connected by one sides of the respective multi-joints (40).
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Description

Modular shelf structure utilizing a multi-joint system

[0001] The present invention relates to a modular shelf structure utilizing a multi-joint system, and more specifically, to a modular shelf structure utilizing a multi-joint system in which shelves are connected via a support pipe, a connecting pipe, and a multi-joint, using a building wall or floor as a support base, so as to be able to display goods, etc.

[0002] Generally, metal profiles with L-shaped or U-shaped cross-sections are commonly used for assembly, but these metal profiles are unsuitable for use as shelves for displaying goods because they not only lack aesthetic appeal but also have uneven assembly parts. Additionally, while hollow, circular, or square tubular bodies may offer the advantage of an aesthetically pleasing appearance when assembled into shelves, they have been criticized for having weak connections between the tubular bodies, which cannot withstand the weight of the displayed goods when a large quantity of goods are displayed. Recently, however, assembly shelves are being constructed using frames specially manufactured with an 'I'-shaped cross-section.

[0003] However, the above-mentioned 'I'-shaped frame has a structure in which the 'L'-shaped or 'T'-shaped connecting members connecting them are simply attached to both sides of the frame and assembled with bolts. Therefore, when attempting to assemble the frame into an 'L'-shaped or 'U'-shaped frame, the connecting members must be assembled with bolts while the worker fixes the two frames to be assembled, which has the problem of requiring two or more workers and taking a long time to assemble.

[0004] Furthermore, since the connecting ends of each connecting member linking the frame are assembled with their ends exposed to the outside, the connection parts are not aesthetically pleasing. Moreover, because the frame and connecting members are connected relying on the tightening force of bolts, there is a problem where the connection parts become unstable even if the bolts are loosened even slightly; if the connection parts of the frame become unstable in this way, products cannot be displayed stably.

[0005] The objective of the present invention is to provide a modular shelf structure utilizing a multi-joint system that can sufficiently withstand the load of displayed goods even when a large quantity of goods are displayed, and allows for stable and simple assembly of the shelves, taking into account and addressing the various existing problems.

[0006] A modular shelf structure utilizing a multi-joint system according to an embodiment of the present invention for solving the above technical problem comprises: a plurality of support tubes; a plurality of connecting tubes vertically connected to the ends of each of the support tubes or between each of the support tubes; a plurality of multi-joints arranged at the same height with one end connected to be fitted onto the outer circumference of each of the connecting tubes; and a shelf that is mounted and connected to form a horizontal position by one end of each of the multi-joints.

[0007] In another embodiment, the plurality of support tubes of the present invention are characterized by being composed of a first support tube and a second support tube having the same diameter but different lengths.

[0008] In another embodiment, the ends of each of the support tubes and each of the connecting tubes of the present invention are connected by a pair of corresponding male and female first end members and second end members.

[0009] In another embodiment, the first end member of the present invention is characterized by comprising: a body in the shape of a rod identical to the outer diameter of the support tube; an insertion rod integrally formed to protrude from the center of one side of the body and tightly coupled to the inner diameter of the support tube; and a screw shaft integrally formed to protrude from the center of the other side of the body and screw-coupled to a second end member connected to another support tube.

[0010] In another embodiment, the second end member of the present invention is characterized by comprising: a body in the shape of a rod identical to the outer diameter of another support tube; an insertion rod integrally formed to protrude from the center of one side of the body and closely coupled to the inner diameter of another support tube; and a screw hole formed in the center of the body and screw-coupled to the screw shaft of the first end member.

[0011] In another embodiment, a finishing member is installed at the uppermost and lowermost ends of a plurality of the first support tubes and the second support tubes of the present invention, wherein the finishing member comprises: a body in the shape of a cylindrical rod identical to the outer diameter of the first support tube or the second support tube; and a screw shaft integrally formed to protrude from the center of one side of the body and screw-coupled to the inner diameter of the end of the first support tube or the second support tube via the second end member.

[0012] In another embodiment, the present invention is characterized by comprising: a first connecting pipe having a central hole formed at a central height so that a portion of the plurality of connecting pipes is vertically connected between each of the supporting pipes and screw-coupled via each of the multi-joints and fastening members installed in front of the shelf; a second connecting pipe having a portion vertically connected between each of the supporting pipes to extend the height of each of the supporting pipes; and a third connecting pipe having a central hole formed at a central height so that a portion is vertically connected between each of the supporting pipes and screw-coupled via each of the multi-joints and fastening members installed in the rear of the shelf, and having an upper hole and a lower hole formed so that they are screw-coupled to a building wall surface via a second bolt.

[0013] In another embodiment, the plurality of multi-joints of the present invention are characterized by comprising: a body of a certain length; a contact surface portion formed lower than the upper surface of the body so that one side and the lower surface of the shelf are simultaneously in close contact and joined at the upper end of the body from one end to the center; and a through hole formed at the center of the upper and lower portions of the other side of the body so that the first connecting pipe or the third connecting pipe is vertically penetrated and joined thereto.

[0014] In another embodiment, the side of the contact surface portion of the present invention is characterized by having a stepped groove formed therein so that the side of the shelf is in close contact with the side of the shelf and the thickness of the side of the shelf is inserted to a certain depth.

[0015] In another embodiment, a first horizontal hole is formed between the center of the other side of the body of the present invention and one side of the through hole so that the fastening member is inserted and passes through the central hole of the third connecting tube, and a second horizontal hole is formed between the other side of the through hole and a certain depth toward the direction of the contact surface so that the end of the fastening member is screw-coupled, and the first horizontal hole and the second horizontal hole are formed at the same height with the through hole in between.

[0016] In another embodiment, the present invention is characterized in that a vertical hole is formed between one end of the body and the center, through which a first bolt passes from the lower part of the body to the upper part of the contact surface and is screw-coupled with one side of the lower surface of the shelf.

[0017] In another embodiment, the shelf of the present invention is characterized in that concave grooves of a certain depth are formed on the left, center, and right sides, respectively, with respect to the front and rear of the lower surface, and an insert nut is coupled to the concave groove so that the first bolt passes through the vertical hole and is fastened.

[0018] The present invention is a modular shelf structure utilizing a multi-joint system that can realize versatility such as adjustable shelf height and lateral expandability, ease of installation and dismantling, and load distribution by installing shelves using a plurality of support pipes, connecting pipes, and a multi-joint system with the building wall or floor as a support base. Therefore, even when a large quantity of goods are displayed, it can sufficiently withstand the load of the displayed goods and prevent the shelves from detaching or falling. Furthermore, the modular shelf structure can be utilized not only for decorative effects on building walls but also as furniture installed on floors, display shelves, interior modules, and workspace assembly systems.

[0019] In addition, not only can assembly time be shortened compared to existing joint products, but installation is also easy on uneven walls or floors.

[0020] FIG. 1 is an example diagram showing a shelf using the multi-joint of the present invention installed on a building wall.

[0021] FIGS. 2(a) and 2(b) are exemplary diagrams showing the combined state of the support tube and the end member of the present invention.

[0022] FIGS. 3(a), (b), and (c) are exemplary diagrams showing the first to third connecting tubes of the present invention.

[0023] FIGS. 4(a), (b), (c), and (d) are exemplary diagrams showing the first and second end members, finishing member, and fastening member of the present invention, respectively.

[0024] FIGS. 5(a), (b), and (c) are example diagrams showing the connection relationship between the support tube and the end member.

[0025] FIG. 6 is an exemplary diagram showing a multi-joint of the present invention.

[0026] FIG. 7 is an exemplary diagram showing the lower part of the shelf of the present invention.

[0027] FIG. 8 is an exemplary diagram showing the connection direction of the multi-joint and shelf of the present invention.

[0028] FIG. 9 is an exemplary longitudinal section showing the forward connection state of the support tube and the shelf by the multi-joint of the present invention.

[0029] FIG. 10 is an exemplary longitudinal section showing the rear connection state of the support tube and the shelf by the multi-joint of the present invention.

[0030] *Explanation of major symbols in the drawings*

[0031] 10: Support Officer 12: 1st Support Officer

[0032] 14 : Second support tube 20 : First end member

[0033] 20a : Body 20b : Insertion rod

[0034] 20c : Screw shaft 22 : Second end member

[0035] 22a : Body 22b : Insertion rod

[0036] 22c : Screw hole 24 : Finishing member

[0037] 24a: Body 24b: Screw shaft

[0038] 26 : Fastening member 26a : Body

[0039] 26b : Screw shaft 30 : Connector

[0040] 32: 1st connector 32a: Central hole

[0041] 34: 2nd connector 36: 3rd connector

[0042] 36a : Central hole 36b : Upper hole

[0043] 36c : Lower hole 40 : Multi-joint

[0044] 42 : Body 42a : First horizontal hole

[0045] 42b : Second horizontal hole 44 : Contact surface

[0046] 44a : Vertical hole 46 : Step groove

[0047] 48 : Through hole 50 : Shelf

[0048] 52 : Recess 54 : Insert nut

[0049] 60: 1st bolt 62: 2nd bolt

[0050] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 1 to 10, in order to fully understand the present invention. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments described in detail below. It should be noted that in each drawing, identical components may be illustrated with the same reference numerals. Detailed descriptions of known functions and components that are deemed to unnecessarily obscure the essence of the present invention are omitted.

[0051] A modular shelf structure utilizing a multi-joint system according to an embodiment of the present invention includes a plurality of support tubes (10), a first end member (20), a second end member (22), a finishing member (24), a fastening member (26), a plurality of connecting tubes (30), a plurality of multi-joints (40), a shelf (50), a first bolt (60), and a second bolt (62) so as to be able to display goods, etc., using a building wall or floor as a support base.

[0052] That is, the above-mentioned plurality of support tubes (10) are composed of a first support tube (12) and a second support tube (14) having the same diameter but different lengths.

[0053] The first end member (20) and the second end member (22) are a male and female pair, which are connected to each other at the ends of the support tubes (10) and the connecting tubes (30) to serve to vertically connect the support tubes (10) and the connecting tubes (30).

[0054] At this time, the first end member (20) comprises a body (20a) in the shape of a rod identical to the outer diameter of the support tube (10), an insertion rod (20b) integrally formed to protrude from the center of one side of the body (20a) and closely coupled to the inner diameter of the support tube (10), and a screw shaft (20c) that is screw-coupled to a second end member (22) integrally formed to protrude from the center of the other side of the body (20a) and connected to another support tube (10).

[0055] The second end member (22) comprises a body (22a) in the shape of a rod identical to the outer diameter of another support tube (10), an insertion rod (22b) integrally formed to protrude from the center of one side of the body (22a) and closely coupled to the inner diameter of another support tube (10), and a screw hole (22c) formed in the center of the body (22a) and screw-coupled to the screw shaft (20c) of the first end member (20).

[0056] The above-mentioned finishing member (24) serves to be connected to the uppermost and lowermost ends of a plurality of first support tubes (12) and second support tubes (14) respectively to make the appearance aesthetically pleasing. It comprises a body (24a) in the shape of a rod identical to the outer diameter of the first support tube (12) or the second support tube (14), and a screw shaft (24b) integrally formed to protrude from the center of one side of the body (24a) and screw-coupled to the inner diameter of the end of the first support tube (12) or the second support tube (14) via a second end member (22).

[0057] The above-mentioned connecting member (26) serves to connect the first connecting pipe (32) or the third connecting pipe (36) with the multi-joint (40), and comprises a body (26a) in the shape of a rod identical to the outer diameter of the first supporting pipe (12) or the second supporting pipe (14), and a screw shaft (24b) integrally formed to protrude from the center of one side of the body (26a) to screw-couple the first connecting pipe (32) or the third connecting pipe (36) with the multi-joint (40).

[0058] The above plurality of connecting pipes (30) are vertically connected at the ends of each supporting pipe (10) or between each supporting pipe (10), and are configured to be divided into a first connecting pipe (32), a second connecting pipe (34), and a third connecting pipe (36) so as to be used separately according to some uses.

[0059] At this time, it is preferable that the first connecting pipe (32) be vertically connected between each supporting pipe (10) and have a central hole (32a) formed at the central height so that it is screw-coupled to each multi-joint (40) installed in front of the shelf (50) via a fastening member (26).

[0060] The second connecting pipe (34) above is vertically connected between each of the support pipes (10) and serves to extend the height of each support pipe (10).

[0061] The above third connecting pipe (36) serves to be connected to the rear of the shelf (50) via a multi-joint (40) and to be fastened to a certain height of the building wall by a plurality of second bolts (62). It comprises a central hole (36a) formed at a central height so that a portion is vertically connected between each support pipe (10) and screw-coupled to each multi-joint (40) installed at the rear of the shelf (50) via a fastening member (26), and an upper hole (36b) and a lower hole (36c) formed above and below the central hole (36a) respectively so that they are screw-coupled to the building wall via a second bolt (62).

[0062] The above-mentioned plurality of multi-joints (40) are connected at one end to be fitted onto the outer circumference of each connecting pipe (30) and are arranged at the same height, and include a body (42), a first horizontal hole (42a), a second horizontal hole (42b), a contact surface (44), a vertical hole (44a), a stepped groove (46), and a through hole (48).

[0063] That is, the body (42) is in the form of a rod having a certain length, and one side is connected to the shelf (50), and the other side is connected to the first connecting pipe (32) or the third connecting pipe (36).

[0064] The first horizontal hole (42a) is formed between the center of the other side of the body (42) and one side of the through hole (48), and serves to allow the fastening member (26) to be inserted and pass through the central hole (36a) of the third connecting tube (36).

[0065] The second horizontal hole (42b) is formed at a certain depth from the other side of the through hole (48) toward the contact surface (44), and serves to screw-connect the end of the fastening member (26).

[0066] It is preferable that the first horizontal hole (42a) and the second horizontal hole (42b) are formed on the same straight line at the same height with the through hole (48) in between.

[0067] It is preferable that the above contact surface (44) be formed lower than the upper surface of the body (42) so that the side surface and the lower surface of the shelf (50) are simultaneously in close contact and joined from one end of the body (42) to the center.

[0068] The above vertical hole (44a) is formed between one end of the body (42) and the center, and serves to allow the first bolt (60) to pass from the lower part of the body (42) to the upper part of the contact surface (44) and to be screw-coupled with one side of the lower surface of the shelf (50).

[0069] The above step groove (46) is formed on the side of the contact surface (44) and serves to ensure that the side of the shelf (50) is in close contact and the side thickness of the shelf (50) is inserted to a certain depth.

[0070] The above through hole (48) is formed at the center of the upper and lower sides of the body (42) and serves to allow the first connecting pipe (30) or the third connecting pipe (36) to pass through vertically and be connected.

[0071] The shelf (50) is connected and mounted horizontally on one side of each multi-joint (40), and comprises a concave groove (52) of a certain depth formed on the left, center, and right sides respectively with respect to the front and rear of the lower surface of the shelf (50), and an insert nut (54) that is coupled to the concave groove (52) so that a first bolt (60) passes through a vertical hole (44a) to be fastened.

[0072] As such, the present invention is a modular shelf structure utilizing a multi-joint system that can realize various characteristics such as height and lateral expandability of the shelf (50), ease of installation and dismantling of the shelf (50), and load distribution of the shelf (50) by installing the shelf (50) using a plurality of support pipes (10), connecting pipes (30), and a multi-joint system (40) with the building wall or floor as a support base. Therefore, even when a large number of products are displayed, it can sufficiently withstand the load of the displayed products and prevent the shelf (50) from detaching or falling. Furthermore, the modular shelf structure has the advantage of being able to be utilized as a decorative effect on the building wall, as well as as furniture installed on the floor, a display shelf, an interior module, or a workspace assembly system.

[0073] Meanwhile, the present invention is not limited to the embodiments described above, but can be implemented with modifications and variations within the scope of the essence of the invention, and such technical concepts to which modifications and variations are applied should also be considered to fall within the scope of the following patent claims.

Claims

1. Multiple support tubes (10); A plurality of connecting pipes (30) vertically connected to the ends of each of the above supporting pipes (10) or between each of the above supporting pipes (10); A plurality of multi-joints (40) arranged at the same height with one end connected to be fitted onto the outer circumference of each of the above-mentioned connecting pipes (30); and A modular shelf structure utilizing a multi-joint system, characterized by including a shelf (50) that is horizontally mounted and connected by one side of each of the above multi-joints (40).

2. In Claim 1, A modular shelf structure utilizing a multi-joint system, characterized in that the plurality of above-mentioned support tubes (10) are composed of a first support tube (12) and a second support tube (14) having the same diameter but different lengths.

3. In Claim 1, A modular shelf structure utilizing a multi-joint system, characterized in that the ends of each of the above-mentioned support tubes (10) and each of the above-mentioned connecting tubes (30) are connected by a pair of corresponding male and female first end members (20) and second end members (22).

4. In Claim 3, The first end member (20) above is, A body (20a) in the shape of a rod with the same outer diameter as the support tube (10); An insertion rod (20b) integrally formed to protrude from the center of one side of the body (20a) and tightly coupled to the inner diameter of the support tube (10); and A modular shelf structure utilizing a multi-joint system, characterized by including a screw shaft (20c) that is screw-coupled to a second end member (22) formed integrally protruding from the center of the other side of the body (20a) and connected to another support tube (10).

5. In Claim 4, The above second end member (22) is, Another body (22a) in the shape of a rod with the same outer diameter as the above-mentioned support tube (10); An insertion rod (22b) integrally formed to protrude from the center of one side of the body (22a) and tightly coupled to the inner diameter of another support tube (10); and A modular shelf structure utilizing a multi-joint system, characterized by including a screw hole (22c) formed in the center of the body (22a) and screw-coupled with the screw shaft (20c) of the first end member (20).

6. In Claim 3, A finishing member (24) is installed at the uppermost and lowermost of the plurality of first support tubes (12) and second support tubes (14), respectively. The above finishing member (24) is, A body (24a) in the shape of a rod identical to the outer diameter of the first support tube (12) or the second support tube (14); and A modular shelf structure utilizing a multi-joint system, characterized by including a screw shaft (24b) integrally formed protruding from the center of one side of the body (24a) and screwed into the inner diameter of the end of the first support tube (12) or the second support tube (14) via the second end member (22).

7. In Claim 1, Among the plurality of the above connecting pipes (30), A first connecting pipe (32) having a central hole (32a) formed at a central height so that a portion is vertically connected between each of the above supporting pipes (10) and screw-coupled to each of the above multi-joints (40) installed in front of the shelf (50) via a fastening member (26); A second connecting pipe (34) in which a portion is vertically connected between each of the above supporting pipes (10) to extend the height of each of the above supporting pipes (10); and A modular shelf structure utilizing a multi-joint system, characterized by comprising a third connecting pipe (36) having a central hole (36a) formed at a central height so as to be screw-coupled to each of the multi-joints (40) installed at the rear of the shelf (50) via a fastening member (26), and upper holes (36b) and lower holes (36c) formed so as to be screw-coupled to the building wall via a second bolt (62).

8. In Claim 7, A plurality of the above multi-joints (40) are, A body of a certain length (42); A contact surface portion (44) formed lower than the upper surface of the body (42) so that the side surface and the lower surface of the shelf (50) are simultaneously in close contact and joined at the upper end from one end of the body (42) to the center; and A modular shelf structure utilizing a multi-joint system, characterized by including a through hole (48) formed so that the first connecting pipe (30) or the third connecting pipe (36) is vertically penetrated and joined in the upper and lower center of the other side of the body (42).

9. In Claim 8, A modular shelf structure utilizing a multi-joint system, characterized in that a stepped groove (46) is formed on the side of the contact surface (44) so ​​that the side of the shelf (50) is in close contact with the side of the shelf (50) and the side thickness of the shelf (50) is inserted to a certain depth.

10. In Claim 8, A first horizontal hole (42a) is formed between the center of the other side of the body (42) and one side of the through hole (48) so that the fastening member (26) is inserted and passes through the central hole (36a) of the third connecting pipe (36). A second horizontal hole (42b) is formed between the other side of the through hole (48) and the contact surface (44) to a certain depth, in which the end of the fastening member (26) is screw-coupled. A modular shelf structure utilizing a multi-joint system, characterized in that the first horizontal hole (42a) and the second horizontal hole (42b) are formed at the same height with the through hole (48) in between.

11. In claim 8, A modular shelf structure utilizing a multi-joint system, characterized in that a first bolt (60) passes from the lower side of the body (42) to the upper side of the contact surface (44) and is screw-coupled to one side of the lower surface of the shelf (50) between one end of the body (42) and the center, and a vertical hole (44a) is formed.

12. In Claim 11, On the lower front and rear sides of the shelf (50), a concave groove (52) of a certain depth is formed on the left, center, and right sides, respectively. A modular shelf structure utilizing a multi-joint system, characterized in that an insert nut (54) is coupled to the concave groove (52) so that the first bolt (60) passes through the vertical hole (44a) and is fastened.