Book shelf
The double-locking connection system stabilizes support brackets on bookshelves by preventing vertical shaking and detachment, improving assembly efficiency and enabling tool-free height adjustment.
Patent Information
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- KEUNSAN INTERIOR DESIGN COMM
- Filing Date
- 2026-02-23
- Publication Date
- 2026-07-29
AI Technical Summary
Conventional shelf support brackets in bookshelves are prone to vertical shaking and detachment under load, require complex assembly, and lack ease of height adjustment.
A double-locking connection system with a mounting projection, movement guide groove, and elastic lock hook secures the support bracket to the post beam, allowing easy assembly and secure attachment.
Prevents vertical shaking and detachment of support brackets, enhances assembly ease, and facilitates quick height adjustment without tools.
Smart Images

Figure 112026022225768-PAT00003_ABST
Abstract
Description
Technology Field
[0001] The present invention relates to a shelf unit, and more specifically, to a shelf unit in which a support bracket is double-locked to a post beam by means of a double-locking connection, thereby preventing vertical shaking of the support bracket even under load applied to the shelf and suppressing the detachment of the support bracket from the post beam, as well as improving assembly workability. Background Technology
[0003] Generally, as bookshelves are furniture used to store books or other items, it is very important that the shelves are stably supported on the inner side of the post beams.
[0004] In conventional bookshelves, the support brackets supporting the shelves often had a structure in which they were fixed to the post beams by simple insertion or screw fastening.
[0005] In this structure, when a load is concentrated on the shelf or an external force is applied, there is not only a risk that the support bracket may shake or detach, but there is also a problem in that it is difficult to accurately fix the position of the support bracket during the installation and height adjustment process.
[0006] In addition, existing support bracket connection methods require separate tools or complex operations during assembly, which reduces ease of use. Furthermore, there is a problem in that the connection strength may decrease due to shaking caused by the repetitive loads applied to the shelf when used for a long period.
[0007] Therefore, there is a need for a new coupling structure that allows the support bracket to be more stably connected to the post beam while enabling the user to easily attach and detach it to adjust the height.
[0008] A related background technology is Korean Registered Patent Publication No. 10-1302972 (Registered on August 28, 2013, Title: Bookshelf). The problem to be solved
[0010] The present invention was created out of the above necessity, and aims to provide a shelf unit that can prevent vertical shaking of the support bracket even under load applied to the shelf and suppress the detachment of the support bracket from the post beam, as well as improve assembly workability, by connecting the support bracket to the post beam in a double-locking manner through a double-locking connection part. means of solving the problem
[0012] To achieve the above-mentioned purpose, the shelf unit according to the present invention is characterized by comprising a post beam, a plurality of support brackets arranged along the height direction on the post beam to support the shelf, and a double locking connection part connecting the support brackets and the post beam so that the support brackets are double-locked to the post beam.
[0013] The above double locking connection part is characterized by comprising a plurality of mounting holes formed at set intervals on the post beam, a mounting projection formed protruding from the support bracket to be fitted into the mounting holes, a movement guide groove formed on the mounting projection to allow the mounting projection to move in a manner that allows it to be caught while fitted into the mounting holes, and a movement prevention fixing part that fixes the mounting projection to prevent movement when the mounting projection is caught in the mounting holes by the movement guide groove.
[0014] The above-described anti-movement fixing part is characterized by including a deformation space formed by being recessed in the support bracket so as to be positioned adjacent to the mounting projection, and an elastic lock hook provided in the support bracket to be elastically deformed in the deformation space and engaging with the mounting hole together with the mounting projection.
[0015] The above elastic lock hook is characterized by having a recessed insertion guide groove formed therein to guide the insertion of a tool so that it can be tilted to release the lock by operating the tool while hooked on the mounting hole. Effects of the invention
[0017] According to the shelf unit of the present invention, since the support bracket has a structure in which it is double-locked to the post beam by means of a double-locking connection part, it is possible to prevent the support bracket from shaking in the vertical direction even under load applied to the shelf and thereby suppress the detachment of the support bracket from the post beam, as well as improve assembly workability. Brief explanation of the drawing
[0019] FIG. 1 is a side view illustrating a shelf unit according to one embodiment of the present invention. FIG. 2 is a front view illustrating a shelf unit according to one embodiment of the present invention. FIG. 3 is an exploded perspective view illustrating the main parts of a shelf unit according to one embodiment of the present invention. FIG. 4 is an operational diagram illustrating the operating state of a double locking connection part in a shelf unit according to one embodiment of the present invention. FIG. 5 is a drawing illustrating an example of a modified support bracket in a shelf unit according to one embodiment of the present invention. Specific details for implementing the invention
[0020] Hereinafter, an embodiment of a shelf unit according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation.
[0021] Furthermore, the terms described below are defined in consideration of their functions in the present invention, and these may vary depending on the intent or practice of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.
[0023] FIG. 1 is a side view illustrating a shelf unit according to an embodiment of the present invention, FIG. 2 is a front view illustrating a shelf unit according to an embodiment of the present invention, FIG. 3 is an exploded perspective view illustrating a key part of a shelf unit according to an embodiment of the present invention, FIG. 4 is an operation diagram illustrating the operation state of a double locking connection part in a shelf unit according to an embodiment of the present invention, and FIG. 5 is a drawing illustrating a modified example of a support bracket in a shelf unit according to an embodiment of the present invention.
[0025] As illustrated in FIGS. 1 to 5, a shelf unit according to one embodiment of the present invention includes a post beam (10), a support bracket (20), and a double locking connection part (30).
[0026] The post beam (10) forms the outer shape of the shelf unit according to the present invention and simultaneously provides a space in which a support bracket (20) is fixedly installed.
[0027] These post beams (10) can be formed from a metal or synthetic resin material having a square cross-section and are interconnected and supported in the horizontal and vertical directions by a plurality of horizontal frames and a plurality of vertical frames.
[0028] A plurality of support brackets (20) are arranged along the height direction on the post beam (10) to support the shelf (S). These support brackets (20) can be supported by being hooked with one side in contact with the post beam (10) through a double locking connection part (30), and serve to provide a space for installing the shelf (S) to support books.
[0029] To this end, a flange (21) may be formed protruding in the thickness direction on the lower side of the support bracket (20) to support the shelf (S) so that it can be seated.
[0030] At this time, the flanges (21) may be formed to protrude spaced apart along the width direction of the support bracket (20), or may be formed to protrude over the entire width direction of the support bracket (20).
[0031] Meanwhile, the double locking connection part (30) is configured to connect the support bracket (20) and the post beam (10) so that the support bracket (20) is double-locked to the post beam (10).
[0032] Specifically, the double locking connection part (30) may include a plurality of mounting holes (31) formed at spaced intervals on the post beam (10), a mounting projection (32) formed protruding from the support bracket (20) to be fitted into the mounting holes (31), a movement guide groove (33) formed on the mounting projection (32) to allow the mounting projection (32) to move in a manner that allows it to be caught while fitted into the mounting holes (31), and a movement prevention fixing part (34) that fixes the mounting projection (32) so as not to move when the mounting projection (32) is caught in the mounting holes (31) by the movement guide groove (32).
[0033] At this time, the anti-movement fixing part (34) may include a deformation space part (35) formed by being recessed in the support bracket (20) so as to be positioned adjacent to the mounting projection (32), and an elastic lock hook (36) provided in the support bracket (20) to be elastically deformed in the deformation space part (35) and engaged with the mounting hole part (31) together with the mounting projection (32).
[0034] That is, when the user moves the support bracket (20) downward after inserting the mounting projection (32) into the mounting hole (31) in a corresponding manner, the mounting projection (32) moves along the movement guide groove (33) in a catching direction while inserted into the mounting hole (31) and is caught and supported on the lower side of the mounting hole (31), and the elastic lock hook (36) contacts the surface of the post beam (10) and is elastically deformed in the deformation space (35), and then is restored at the moment the mounting projection (32) is caught in the mounting hole (31) and is caught and supported on the upper side of the mounting hole (31).
[0035] Accordingly, the support bracket (20) is in a double locking state that can be restrained in both the up and down directions with respect to the post beam (10) by having the mounting projection (32) primarily engaged and supported on the lower side of the mounting hole (31) and the elastic lock hook (36) secondarily engaged and supported on the upper side of the mounting hole (31).
[0036] Thus, the support bracket (20) can be fixed to the post beam (10) simply by moving it downward after inserting the mounting projection (32) into the mounting hole (31), so that no separate tool is required, thereby improving the convenience of the assembly work. Furthermore, since a high fixing force can be secured compared to a simple insertion coupling structure, the phenomenon of detachment or play in the up and down direction can be prevented.
[0037] At this time, the elastic lock hook (36) may be formed with a recessed insertion guide groove (37) that guides the insertion of a tool so that it can be tilted to release the lock by operating the tool while hooked in the mounting hole (31).
[0038] That is, when a user wants to remove the support bracket (20) from the post beam (10) or adjust the height, after inserting a tool into the insertion guide groove (37), the elastic lock hook (36) is tilted toward the deformation space (35), and the elastic lock hook (36) is separated from the upper edge of the mounting hole (31), thereby releasing the secondary lock.
[0039] Accordingly, the mounting projection (32) can move in the reverse direction along the movement guide groove (33), so that the primary locking of the mounting hole (31) can be switched to a state where it can be released.
[0040] Thus, the user can easily detach the support bracket (20) from the post beam (10) or reposition it to a desired location, thereby enabling the height adjustment of the support bracket (20) to be performed quickly and accurately.
[0041] In addition, the installation of the support bracket (20) on the post beam (10) automatically forms a primary and secondary locking structure, and the release of the support bracket (20) on the post beam (10) is possible only through an intended operation using a tool, thereby preventing the support bracket (20) from being accidentally detached.
[0043] Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom.
[0044] Therefore, the true technical scope of protection of the present invention should be determined by the claims below. Explanation of the symbols
[0046] 10: Postbeam 20: Support bracket 21: Flange 30: Double locking connection 31: Mounting hole 32: Mounting protrusion 33: Directions Home 34: Movement prevention fixing device 35: Deformed space section 36: Elastic lock hook 37: Insertion guide groove
Claims
Claim 1 A shelf unit comprising: a post beam; a plurality of support brackets arranged along the height direction on the post beam to support a shelf; and a double locking connection part connecting the support bracket and the post beam so that the support bracket is double-locked to the post beam; wherein the double locking connection part comprises a plurality of mounting holes formed on the post beam at spaced intervals, a mounting projection formed protruding from the support bracket to be fitted into the mounting holes, a movement guide groove formed on the mounting projection to allow the mounting projection to move in a manner that allows it to be caught while fitted into the mounting holes, and a movement prevention fixing part that fixes the mounting projection to prevent movement when the mounting projection is caught in the mounting holes by the movement guide groove part; wherein the movement prevention fixing part comprises a deformation space formed recessed in the support bracket to be arranged adjacent to the mounting projection, and an elastic lock hook provided on the support bracket to be elastically deformed in the deformation space and engaged with the mounting hole together with the mounting projection. Claim 2 delete Claim 3 delete Claim 4 A shelf unit according to claim 1, characterized in that the elastic lock hook has a recessed insertion guide groove formed therein to induce the insertion of a tool so that it can be tilted to release the lock by operating the tool while hooked on the mounting hole.