Expandable sliding bookshelf

Abstract

The present invention relates to an expandable sliding bookshelf wherein a low-height single-row bookshelf is arranged to be slid left and right in front of a double-row bookshelf such that many materials can be efficiently stored in a narrow space. The expandable sliding bookshelf comprises: a double-row bookshelf including double-row side frames arranged on the left and right sides thereof and double-row shelves installed in multiple tiers to connect the double-row side frames on both sides thereof; a single-row bookshelf including single-row side frames that are arranged on the left and right sides thereof in front of the double-row bookshelf and have a lower height than the double-row side frames and single-row shelves installed in multiple tiers to connect the single-row side frames on both sides thereof; a lower guide member that guides the bottom of the single-row bookshelf during sliding; and an upper guide member that guides the top of the single-row bookshelf during sliding.

Description

Expandable sliding bookshelf

[0001] The present invention relates to an expandable sliding bookshelf, and more particularly, to an expandable sliding bookshelf in which a single-row bookshelf having a low height is arranged in front of a two-row bookshelf so as to slide left and right, thereby enabling efficient storage of a large number of materials in a narrow space.

[0002] As is well known, a bookshelf is a device designed to hold or place documents or books, and is installed in places such as libraries or office storage rooms.

[0003] Recently, there has been a growing trend towards mobile bookshelves to efficiently store a large amount of material in a small space.

[0004] These mobile bookshelves are designed to increase storage space for records by installing bookshelves on rails laid on the floor of the bookshelf, allowing the bookshelves to be moved.

[0005] A typical mobile bookshelf has a single row of books in the front and two rows of books in the back, with the single and double rows of books being made in the same shape and sliding along rails.

[0006] As prior art related to rails of a mobile bookshelf, Republic of Korea Utility Model Publication No. 20-2000-0008438 (publication date May 15, 2000), Republic of Korea Utility Model Registration No. 20-0188084 (registration date April 24, 2000), Republic of Korea Patent Registration No. 10-1424153 (registration date July 22, 2014), and Republic of Korea Patent Registration No. 10-0910397 (registration date July 27, 2009) are disclosed.

[0007] The above-described conventional technology has the technical gist of having one and two rows of bookshelves slide along rails installed on the floor and ceiling.

[0008] Recently, when placing a single-row bookshelf of the same shape in the front and a double-row bookshelf in the back, the single-row bookshelf feels high and heavy, which can make it stuffy for users and does not provide an attractive interior design. Therefore, a method of making the height of the single-row bookshelf lower than that of the double-row bookshelf is preferred.

[0009] However, when the height of the first-row bookshelf is lower than that of the second-row bookshelf, the first-row bookshelf is guided only along the lower rail and no rail to guide sliding can be installed on the upper side, so there is a problem in that movement occurs when sliding and stability cannot be secured.

[0010] The present invention has been devised to solve the conventional problems described above, and an object of the present invention is to provide an expandable sliding bookshelf that can secure stability by installing a rail to guide the upper sliding of a single-row bookshelf when a single-row bookshelf with a low height is placed in front of a double-row bookshelf.

[0011] In order to achieve the above object, the present invention comprises a two-row bookshelf including two rows of side frames arranged on both left and right sides, and two rows of shelves installed in multiple tiers to connect the two rows of side frames on both sides; a single-row bookshelf including a single row of side frames arranged on both left and right sides in front of the two-row bookshelf to form a height lower than the two rows of side frames, and a single row of shelves installed in multiple tiers to connect the two rows of side frames on both sides; a lower guide member guiding the lower portion of the single-row bookshelf when it slides; and an upper guide member guiding the upper portion of the single-row bookshelf when it slides.

[0012] The above upper guide member may include an upper sliding wheel provided on the upper rear side of the first row side frame of the first row bookshelf, and an upper guide rail fixed to the second row side frame of the second row bookshelf to guide sliding of the upper sliding wheel.

[0013] The present invention may further include a wheel bracket installed on the rear upper portion of the first row side frame to rotatably support the upper sliding wheel.

[0014] The wheel bracket may include a vertical portion formed vertically and installed at the rear upper portion of the first row side frame, and a horizontal portion having a wheel shaft that is horizontally connected to the upper portion of the vertical portion along the front of the first row bookshelf to rotatably support the upper sliding wheel.

[0015] The present invention may further include a support slit formed along the rear surface of the upper guide rail, a plurality of rail supports fitted into the support slit and arranged at predetermined intervals, and a rail bracket fixed to the two-row side frame to support the rail supports.

[0016] The present invention may further include a tap hole formed in the rail support, and a pressure bolt that is screwed into the tap hole and pressurizes and fixes the inner surface of the support slit.

[0017] According to the present invention implemented with the above-described solution, when a single-row bookshelf having a low height is slid left and right in front of a double-row bookshelf, the lower part of the single-row bookshelf is guided by a lower guide member and the upper part is guided by an upper guide member, so that the single-row bookshelf can be slid stably.

[0018] Fig. 1 is a perspective view showing the overall shape of a bookshelf according to an embodiment of the present invention.

[0019] Figure 2 is a right side view showing the right side of Figure 1.

[0020] Figure 3 is an enlarged view showing the 'A' portion of Figure 2.

[0021] Fig. 4 is an exploded perspective view showing the exploded state of a guide rail and a two-row bookshelf according to an embodiment of the present invention.

[0022] Fig. 5 is an enlarged view showing the main part of Fig. 4.

[0023] Fig. 6 is an enlarged perspective view showing the upper part of a single-row bookshelf according to an embodiment of the present invention.

[0024] In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the attached drawings.

[0025] The embodiments of the present invention may be modified in various ways, and the scope of the present invention should not be construed as being limited to the embodiments detailed below. These embodiments are provided to more fully explain the present invention to those of ordinary skill in the art.

[0026] Accordingly, the shapes of components depicted in the drawings may be exaggerated to emphasize a clearer description. It should be noted that identical components may be depicted with the same reference numerals in each drawing. Furthermore, detailed descriptions of known functions and configurations that may unnecessarily obscure the gist of the present invention are omitted.

[0027] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0028] An expandable sliding bookshelf according to an embodiment of the present invention comprises: a two-row bookshelf (200) including two-row side frames (210) arranged on both left and right sides, and two-row shelves (230) installed in multiple stages to connect the two-row side frames (210) on both sides; a single-row bookshelf (100) including one-row side frames (110) arranged on both left and right sides in front of the two-row bookshelf (200) to have a height lower than that of the two-row side frames (210), and one-row shelves (130) installed in multiple stages to connect the two-row side frames (110) on both sides; a lower guide member (300) for guiding the lower portion of the one-row bookshelf (100) when it slides; and an upper guide member (400) for guiding the upper portion of the one-row bookshelf (100) when it slides.

[0029] First, the 'X' axis depicted in the drawing is defined as left and right, the 'Y' axis as front and back, and the 'Z' axis as up and down or vertical.

[0030]

[0031] The two-row bookshelf (200) includes an assembleable two-row side frame (210), a two-row bracket (220), and a two-row shelf (230).

[0032] Referring to FIGS. 1 and 2, the two-row side frame (210) is a structure that forms the skeleton of the two-row bookshelf (200), and the two-row side frame (210) is connected to form a closed line of a square shape that continues without a break in the middle, including the two-row front column (211), the two-row rear column (212), and the two-row connecting bar (213).

[0033] On the front of the second row rear column (212), a plurality of fastening grooves (212a) are formed at predetermined intervals in the vertical direction, and fastening pieces (not shown) provided on the second row bracket (220) are detachably fastened.

[0034] The 2-row bracket (220) is formed in a flat plate shape and has the function of dividing the 2-row front column (211) and the 2-row rear column (212) of the 2-row side frame (210) and supporting the 2-row shelf (230). A fastening member is provided at the rear end of the 2-row bracket (220) to be detachably fastened to the fastening groove (212a) of the 2-row rear column (212), and a catch member (221) is provided on the inner surface to be detachably fitted into the fitting groove (231) of the 2-row shelf (230).

[0035] The two-row shelf (230) is formed in the shape of a long plate in the left-right direction and is configured to actually support books. At both ends of the two-row shelf (230), a fitting groove (231) is formed and is detachably inserted into and fixed to the hook (221) of the two-row bracket (220).

[0036]

[0037] The single-row bookshelf (100) is formed to have a lower height than the double-row bookshelf (200) by including an assembleable single-row side frame (110), a single-row bracket (120), and a single-row shelf (130), so as not to cause a feeling of stuffiness to the user and to provide stability and beauty in terms of interior design.

[0038] Referring to FIGS. 1 and 2, the first row side frame (110) is a structure that forms the skeleton of the first row bookshelf (100), and the first row side frame (110) is connected to form a closed line of a square shape that continues without a break in the middle, including the first row front column (111), the first row rear column (112), and the first row connecting bar (113). In particular, the first row side frame (110) is formed to have a height lower than the height of the second row side frame (210).

[0039] On the front of the first row rear column (112), a plurality of fastening grooves (112a) are formed at predetermined intervals in the vertical direction, and fastening pieces (not shown) provided on the first row bracket (120) are detachably fastened.

[0040] The first row bracket (120) is formed in a flat plate shape and has the function of dividing the first row front column (111) and the first row rear column (112) of the first row side frame (110) and supporting the first row shelf (130). A fastening member is provided at the rear end of the first row bracket (120) so as to be detachably fastened to the fastening groove (112a) of the first row rear column (112), and a catch member (121) is provided on the inner surface so as to be detachably fitted into the fitting groove (131) of the first row shelf (130).

[0041] The first row shelf (130) is formed in the shape of a long plate extending left and right, and is configured to substantially support books. Insertion grooves (131) are formed at both ends of the first row shelf (130) and are detachably inserted into and fixed to the hooks of the first row bracket (120).

[0042]

[0043] The lower guide member (300) is configured to guide the lower sliding of the first row of bookshelves (100).

[0044] Referring to FIGS. 1 and 2, the lower guide member (300) includes a lower sliding wheel (310) provided at the bottom of a single-row bookshelf (100) and a lower guide rail (320) installed on the floor to guide the sliding of the lower sliding wheel (310).

[0045] The axles of the lower sliding wheels (310) are provided in multiple numbers on the lower portions of the first row front column (111) and the first row rear column (112) so as to face the front-back direction, or are provided in multiple numbers on the first row connecting bar (113) connecting the lower portions of the first row side frames (110).

[0046] The lower guide rail (320) is installed long along the left and right direction of the floor to guide the left and right sliding of the lower sliding wheel (310).

[0047]

[0048] The upper guide member (400) is configured to guide the upper sliding of the first row of bookshelves (100).

[0049] Referring to FIGS. 3 to 6, the upper guide member (400) includes an upper sliding wheel (420) provided on the upper rear side of the first-row side frame (110) of the first-row bookshelf (100), and an upper guide rail (430) fixed to the second-row side frame (210) of the second-row bookshelf (200) to guide the sliding of the upper sliding wheel (420).

[0050] The upper sliding wheel (420) is provided to be rotatable by a wheel bracket (410) installed on the upper part of the first row rear column (112).

[0051] The wheel bracket (410) includes a vertical portion (411) formed vertically and installed with a bolt to the rear upper portion of the first-row rear column (112), and a horizontal portion (412) having a wheel shaft (421) formed vertically so as to face up and down and horizontally connected to the upper portion of the vertical portion (411) in the direction of the first-row connecting bar (113). The horizontal portion (412) is connected to the upper portion of the vertical portion (411) in the direction of the first-row connecting bar (113) so as not to interfere with the second-row bookshelf (200) when sliding left and right.

[0052] The upper guide rail (430) is fixed by a rail bracket (440) installed on the second row front column (211). This upper guide rail (430) is formed in a cross-sectional shape roughly like '┏┓' to guide the sliding of the upper sliding wheel (420). A support slit (431) is formed long along the left and right directions on the rear of the upper guide rail (430) and is fitted along the rail support (450) described later.

[0053] Referring to FIGS. 4 and 5, the rail bracket (440) includes a fixing portion (441) formed in a cross-sectional shape of '┏┓' to wrap around and fix the outer surface of the two-row front column (211), and a straight support portion (442) connected to both ends of the fixing portion (441) to support the rail support (450).

[0054] It is preferable that the rail bracket (440) be formed by integrally forming the fixing portion (441) and the support portion (442) by bending a single metal plate.

[0055] And the rail support (450) is formed in a flat and long rod shape and is supported by a support bolt (443) that penetrates the support portion (442) of the rail bracket (440). Tap holes (451) are formed on both sides of the rail support (450), and a pressure bolt (452) is screwed into the tap holes (451) to pressurize the inner surface of the support slit (431) as shown in FIG. 3, thereby fixing the upper guide rail (430).

[0056]

[0057] The assembly and operation of the present invention configured as described above are described in detail with reference to the drawings as follows.

[0058] First, by placing the two-row side frames (210) on both sides of the floor and making them self-supporting, the fastening piece of the two-row bracket (220) is fastened to the fastening groove (212a) of the two-row side frame (210), and then the process of inserting the fitting groove (231) of the two-row shelf (230) into the catch piece (221) of the two-row bracket (220) is repeated to assemble the two-row shelves (230) in multiple stages, thereby assembling the two-row bookshelf (200) as shown in FIGS. 1 and 2.

[0059] Next, a plurality of rail supports (450) are inserted into the support slits (431) of the upper guide rail (430) and placed at positions corresponding to the two-row front columns (211), and then the rail supports (450) are pressurized and fixed using pressurized bolts screwed into the tap holes (451).

[0060] Next, a rail bracket (440) is fixed to the second row front column (211), and a support bolt (443) is passed through the rail bracket (440) and screwed to the rail support (450), so that the upper guide rail (430) is supported by the rail bracket (440).

[0061] Then, a lower guide rail (320) is installed in front of a two-row bookshelf (200), and a first-row side frame (110) equipped with a lower sliding wheel (310) is placed on both sides of the lower guide rail (320) to make it self-supporting, and then the fastening piece of the first-row bracket (120) is fastened to the fastening groove (112a) of the first-row side frame (110).

[0062] Next, the process of inserting the insertion groove (131) of the first-row shelf (130) into the catch (121) of the first-row bracket (120) is repeated to assemble the first-row shelf (130) into multiple stages, and thus the first-row bookshelf (100) is assembled as shown in FIGS. 1 and 2.

[0063] At this time, the upper sliding wheel (420) provided on the upper part of the first row side frame (110) is coupled so as to be able to slide in the left and right direction along the upper guide rail (430), so as to stably guide the upper sliding of the first row bookshelf (100) when sliding the first row bookshelf (100) in the left and right direction.

[0064] Accordingly, when the low-height single-row bookshelf (100) is slid left and right, the lower part of the single-row bookshelf (100) is guided by the lower guide member (300) and the upper part of the single-row bookshelf (100) is guided by the upper guide member (400), so that the stability of the single-row bookshelf (100) can be secured.

[0065]

[0066] Meanwhile, Fig. 7 is a side view showing another embodiment according to an embodiment of the present invention, in which a single-row bookcase (100) and a double-row bookcase (200) are arranged in a symmetrical structure at the rear, and the double-row bookcase (200) can be supported so as to be slidable in the left and right directions by a lower guide member (300) and an upper guide member (400).

[0067] At this time, the configuration and operation of the lower guide member (300) and the upper guide member (400) can be replaced with the above-described description, so they are omitted.

[0068]

[0069] The embodiments of the present invention described above are merely exemplary, and those skilled in the art to which the present invention pertains will readily appreciate that various modifications and equivalent other embodiments are possible.

[0070] Therefore, it will be well understood that the present invention is not limited to the forms mentioned in the detailed description above.

[0071] Therefore, the true technical protection scope of the present invention should be determined by the technical concept of the appended claims. Furthermore, the present invention should be understood to encompass all modifications, equivalents, and alternatives within the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A two-row bookshelf including two rows of side frames arranged on both left and right sides, and two rows of shelves installed in multiple stages to connect the two rows of side frames on both sides; A single-row bookshelf including a single-row side frame arranged on both front left and right sides of the above-mentioned two-row bookshelf and having a lower height than the above-mentioned two-row side frame, and a single-row shelf installed in multiple stages to connect the above-mentioned first-row side frames on both sides; A lower guide member that guides the lower portion of the first row of bookshelves when they slide; An upper guide member that guides the upper portion of the first row of bookshelves when they slide; Expandable sliding bookshelf including.

2. In claim 1, The above upper guide member, An expandable sliding bookshelf characterized by including an upper sliding wheel provided on the upper rear side of the first row side frame of the first row bookshelf, and an upper guide rail fixed to the second row side frame of the second row bookshelf to guide sliding of the upper sliding wheel.

3. In claim 2, Further comprising a wheel bracket installed on the rear upper portion of the first row side frame to rotatably support the upper sliding wheel; An expandable sliding bookshelf characterized in that the wheel bracket includes a vertical portion formed vertically and installed at the upper rear portion of the first row side frame, and a horizontal portion having a wheel shaft that is horizontally connected to the upper portion of the vertical portion along the front of the first row bookshelf to rotatably support the upper sliding wheel.

4. In claim 2, An expandable sliding bookshelf further comprising a support slit formed along the rear surface of the upper guide rail, a plurality of rail supports fitted into the support slit and arranged at predetermined intervals, and a rail bracket fixed to the two-row side frame to support the rail supports.

5. In claim 4, An expandable sliding bookshelf characterized by further comprising a tap hole formed in the rail support and a pressure bolt screwed into the tap hole to pressurize and fix the inner surface of the support slit.

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