JPH0956493A - Shelf device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shelf device which is hard to generate a deformation such as a warping of the wooden part, etc., and has a side plate structure with a high rigidity while emphasizing the good points of the wood, and in addition, which can be altered to a high shelf device by adding a member while making use of the member of a low shelf member when the shelf device is altered to a high shelf device by combining a wooden member with a steel member as the strengthening member for the shelf device. SOLUTION: A reinforcing frame 8 made of steel, which is formed into a square frame shape when being seen from the front surface, is fixed and connected to two side plates 51, 61. Also, when a side plate 4 is formed in such a manner that a plurality of side plate panels 12, 12 made of wooden plate are connected in the longitudinal direction by an intermediate column 14 made of steel, the reinforcing frame 8 is fixed to the intermediate column 14 at the center in the longitudinal direction of the side plate 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shelf device used in libraries and offices for placing books and articles, and more particularly to a structure centering on its side plate.

[0002]

2. Description of the Related Art Conventionally, there are various types of shelving equipment such as wood-based and steel-based shelving equipment, but in the case of large-sized shelving equipment, steel members and wooden members are combined from the viewpoint of ensuring good appearance and strength. Shelving equipment is often used. As a shelf device that combines steel members and wooden members, for example,
There is one described in Japanese Patent No. 8043.

[0003]

This shelving device is provided with a steel plate lining on the inner surface of the side plate in order to prevent deformation and warpage due to large load weight, long-term use, drying, etc.
In order to reduce the increased weight due to the lining of the steel plate, the steel strut is made thick with a special cross-sectional shape, and is divided into front and rear parts to which small wooden side plates are hooked.

However, in the side plate structure of the above-mentioned conventional shelving device, not only the makeup effect of wood is greatly impaired by the steel plate lined with the wooden side plate in order to prevent deformation and warpage. Since the side plate is simply used as a wooden makeup by being hung on the pillars and not used as a strength member for the main body of the shelving device, it can be used as a steel pillar or a member such as a steel leg for erecting the pillar. The load of side plates as well as shelves and loads will be handled by one hand. Then, the steel strut is increased in rigidity by thickening it to a special cross-sectional shape, and a leg member for supporting the strut extremely firmly and a strong mounting and assembling work are required.

Further, in order to change from a short one to a tall one, these shelving devices have to be changed to the tall ones for the columns or the side plates, and have been used until now. Posts or side plates for lower shelves were wasted.

In order to solve such problems, an object of the present invention is to use a wooden member as a strength member, thereby emphasizing the advantages of the wooden material, while making it difficult for the wooden material portion to be deformed, such as warped. It is an object of the present invention to provide a shelving device having a high side plate structure, and when changing a short shelving device to a tall shelving device, the members of the short shelving device can be changed while the members are added.

[0007]

According to the present invention, the above-mentioned problem is solved as follows. (1) In a shelf device in which a plurality of shelves are laid between the left and right side plates, a steel reinforcing frame formed in a rectangular frame shape when viewed from the front is fixed to the two side plates to connect them. To do.

(2) In the above-mentioned item (1), in the shelf device in which the width in the front-rear direction is large and the load can be put in and out from both front and rear sides, the reinforcing frame is fixed at the central portion of the side plate in the front-rear direction.

(3) In the above item (2), the side plate is formed by connecting a plurality of side plate panels made of wood plates in the front-rear direction through intermediate steel columns, and the reinforcing frame is arranged in the front-rear direction of the side plate. It is fixed to the intermediate column at the center.

(4) In any one of the above items (1) to (3), in a shelf device in which side plates are vertically connected to each other so that the height can be increased, a rectangular frame-shaped reinforcing frame is vertically arranged. Position it across the two side plates connected to each other, and fix it to the four side plates above and below and left and right to connect them.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) Embodiment 1 of the present invention will be described with reference to FIGS. The first embodiment is a large-sized bookcase used in a library or the like, and is a double-sided shelving device capable of taking in and out books from both front and rear sides. First, an outline will be described with reference to FIGS. The shelving device (1) has a pair of side plates (2) and (3) at the left and right ends and a side plate (4) at the center. These three side plates
(2), (3) and (4) are also legs that stand the shelf device (1) on the floor.

Between the three side plates (2) (3) (4) is a top plate.
(5) (5), 10 shelves (6), a pair of left and right lower structure shelves
(7) (7) has been passed over. There are 6 shelves in total. Among them, top plate (5) (5) and lower structure shelf plate (7)
(7) is firmly fixed to the three side plates (2), (3) and (4) with bolts.

As the strength member, the side plates (2) and (3) described above are used.
In addition to (4), the top plate (5) (5), and the lower structure shelf plate (7) (7), a square steel pipe, which is a feature of the present invention, is welded to form a rectangular frame shape when viewed from the front. There is a reinforced frame (8) (8) and side plate (2)
(3) and (4) are fixed by bolts at the center in the front-rear direction between them. The reinforcing frame (8) is rigid because it is welded by a square tube, and acts as a brace that prevents the shelf device (1) from being vertically and horizontally displaced.

On each shelf (6), there are many book supports (9) for preventing the books from falling down.
Book stoppers (10) necessary for (1) to arrange books in two rows so that they can be taken in and out from both front and rear sides are provided at the front and rear centers of the shelf plate (6). (11) on the top of the side plate (3)
It is a card holder that contains the classification numbers of books.

Next, the detailed structure centering on the structure of the side plate will be described with reference to FIGS. The side plate (4) in the middle position of the three side plates is, as its main components, two side plate panels (12) (12) arranged side by side and two side plate panels (12).
For (12), a pair of front and rear end columns (13) (13) that stand in contact with the front and rear end faces at approximately the same height, and two side panel panels (12) that stand at approximately the same height in the center Middle support (14) connecting (12)
And a pair of upper and lower lateral reinforcements that contact and join the upper and lower end faces (15)
(16) and have.

The side panel (12) is made of a wooden board, has an aesthetic appearance as a wooden panel, has an appropriate thickness and a required strength, and further has an outer periphery on its front and rear end surfaces and upper and lower end surfaces. A rectangular groove-shaped groove (17) is formed so as to make one round. However, as is apparent from the figure, the groove width of the concave groove (17) is the same, but the depth is different in the front and rear and in the upper and lower. Front and rear ends
(13) consists of a square steel tube, the length of which is a side panel (12).
The length is equal to the bottom-to-bottom length of the upper and lower concave grooves (17), and the concave and convex grooves (17) on the front and rear end surfaces of the side plate panel (12) are fitted by filling about half of the front-rear direction.

The intermediate column (14) is also made of a steel square tube,
Its length is the same as the front and rear end columns (13), and is 2
The side plate panels (12) (12) are fitted into the recessed grooves (17) (17) on the front and rear end faces of the individual side panel (12) (12) and sandwiched. The cross-sectional shape of the middle strut (14) is the same square and the same width, but the length in the front-rear direction is the front-rear end strut (1
Larger than 3), the side panel (12) (12) is the middle strut (14)
A large gap is formed between the end faces of the side plate panels (12) and (12) when the groove is sandwiched between the bottom surfaces of the concave grooves (17) and (17). On the side surface of the intermediate column (14) facing the large gap, two bolt holes (18) for attaching the rectangular reinforcing frame (8) at the center in the front-rear direction and in the center in the height direction, and the reinforcing frame. Shelf brackets (1
Two rows of locking holes (20) for locking 9) are provided on one side, and a total of four rows on both side surfaces are provided in the vertical direction.

Further, the pair of upper and lower lateral reinforcements (15) (16) are also
It consists of a square steel tube and its length is two side panel panels (12) (1
Grooves (17) on the front and back when 2) is sandwiching the middle column (14)
Two side panel panels equal in length from bottom to bottom of (17)
(12) All are fitted in the concave grooves (17) and (17) on the upper and lower end surfaces of (12).

The above parts are assembled and joined as follows to form one intermediate side plate (4). A pair of front and rear end columns (13) (13), an intermediate column (14), and a pair of upper and lower lateral reinforcing members for the concave grooves (17) (17) of the two side plate panels (12) (12) (15) (1
6) is fitted, and a pair of front and rear end columns (13) (13) and top and bottom 1
With the four corners created by the pair of lateral reinforcements (15) (16),
Four L-shaped corner connecting members (21) are inserted into these openings, and the insertion portions on the front and rear end columns (13) are fixed with two bolts to connect them.

Furthermore, a pair of front and rear end columns (13) (13) connected to the front and rear, two side plate panels (12) (12) and an intermediate column (14).
Two upper and lower bolt holes penetrating through and in the front-rear direction, a pair of front-rear L-shaped corner connecting members (21) (21), and an upper lateral reinforcing member.
Insert three long bolts (22) into one bolt hole that penetrates (15) and in the front-rear direction, and tighten it with nut (22a). Before that, a pair of upper and lower lateral reinforcements (15) and (16) are screwed and fixed to the upper and lower end faces of the intermediate support column (14) with two bolts (23).

Thus, the main body of the intermediate side plate (4) is assembled. This has sufficient strength to endure for a long period of time and is resistant to deformation and warpage. In addition, the intermediate side plate (4) is well thought out for its wooden appearance. That is, by covering the front side of the front end support (13) and the back side of the rear end support (13) with long front and rear covers (24) (24), the intermediate side plate
Head (4) and nut (22a) of bolt (22) for assembling and assembling
Etc. are covered. Although illustration of the attachment of the front and rear covers (24) to the front and rear end columns (13) is omitted,
It is preferable to hook the hooks provided on the front and rear covers (24) into the holes provided in (13). In addition, there is an exposed portion for attaching the reinforcing frame (8) at the center in the front-rear direction on both side surfaces of the intermediate strut (14), but this portion has a long vertical cover (25) (25)
Is covered. The upper covers (26) and (27) are covered on the upper surface of the upper lateral reinforcement (15).

Here, the front and rear covers are attached to the front and rear end columns (13) (13).
(24) When covered with (24), front and rear covers (24) and side panel
A gap is formed between the end surface of the shelf bracket (12) and the front surface of the front and rear end columns (13) and (13) located in the gap so that the shelf bracket (19) can be locked. A row of holes (20) is provided on both sides, one row above the other.

For this purpose, the front and rear covers (24), (24), the lateral covers (25), (25), the upper covers (26), (27) are used to fix the columns and the like.
The metal surface will be hidden, leaving only the narrow row of locking holes (20). Of course, the covers are also made of drawn wood, but it is better to give them a wood-like color. It should be noted that female screws are formed on the lower surfaces of the pair of front and rear L-shaped corner connecting members (21) and (21) so that the rack device (1) can be horizontally leveled.
The male threads of the individual adjusters (28) are screwed in.

Next, a pair of side plates (2) at the left and right ends.
The structure of (3) will be described. In the case of the end side plates (2) (3),
Unlike the intermediate side plate (4), the shelf plate (6) is attached to only one surface on the inner side, so that the outer surface has a structure that allows more wood texture.

The end side plate (3) is a main component.
Two inner side plate panels (29) (29) lined up in front and back and the front and rear end faces of the inner side plate panels (29) (29) are in contact with each other at the same height 1
A pair of front and rear end columns (13) (13) and two inner side panel panels (29)
An intermediate column (14) sandwiched between (29) and connecting them, and a pair of upper and lower lateral reinforcing members (15) (1) which are also in contact with and join the upper and lower end faces.
6) and an outer side plate panel (30) which overlaps with the assembled state of these parts while covering from the outside and fitting.

Among the above-mentioned components, the front and rear end columns (13) (13), the intermediate column (14) and the lateral reinforcing members (15) (16) are the same as those of the intermediate side plate (4). The inner side plate panel (29) is made of a wooden plate and has plate-like protrusions (31) on its front, rear, upper and lower end faces, which make one round of the outer periphery along its inner side faces and project outward. ing. However, the height of the protrusion (31) differs depending on the end face. The shape of the inner side plate panel (29) is one of the side wall panels (12) of the intermediate side plate (4) having the thickness of the side wall forming the concave groove (17) at its end face, including the side wall. It's the same as if the sides were scraped off.

The outer side panel (30) has a flat surface with a large depression in the center, and the inner side panel (29) (2) described above is used.
9), front and rear end columns (13) (13), intermediate column (14), lateral reinforcement (15)
Assemble (16), same as the intermediate side plate (4),
The four L-shaped corner connecting members (21), the bolts (22) and nuts (22a) facing the front-rear direction, and the ones tightened with other bolts are housed in the recessed surface, and the front and rear and upper three
Close exactly (but head of bolt (22), nut (2
2a) etc. are emptied of meat), only the lower part is open, and the plate-like protrusions (31) of the inner side panel (29) and the outer flat side panel (30) are flat. And at the front and rear ends
(13) (13), the intermediate support (14), the lateral reinforcements (15) (16) are sandwiched between the sides, the inner side panel (29) and the outer side panel (30) two bolts (32) (32) is threaded through from the inside.

The outer side plate panel (30) has an increased thickness and is inclined at the front and rear corners to enhance the appearance as a decorative plate. Due to its aesthetic appearance, the screw holes for the bolts (32) described above do not penetrate to the outer surface of the outer side panel (30). The inner side panel (29) (29), front and rear end columns (13) (13), intermediate column (14), lateral reinforcement (15) (16)
It is exactly the same as in the case of (4), and it is performed with four L-shaped corner connecting members (21) and (21), three long bolts (22) and a normal length bolt.

The outer side plate panel (30) includes front and rear covers (24) (24), side covers (25) (25) and an upper cover (2) of the intermediate side plate (4).
6) As with (27), it has the function of covering metal such as columns, so these parts are not required. However, one horizontal cover (25) for covering the inner side surface of the intermediate strut (14), and a part of the front and rear end strut (13) (13) (a part outside the row of the locking holes (20) in the front and rear side) 2) are provided to cover the end side cover (33). As a result, the metal surfaces of the columns and the like are hidden, leaving only the row of narrow locking holes (20).

As with the intermediate side plate (4), female screws are formed on the lower surfaces of the pair of front and rear L-shaped corner connecting members (21) and (21) so that the rack device (1) can be horizontally leveled. 2 for issuing
The male threads of the individual adjusters (28) are screwed in.

Next, the assembly of the entire shelf device using the side plates (2), (3) and (4) will be described. These three side plates
In addition to (2), (3) and (4), the top plate (5) (5) and the lower structure shelf plate (7) (7) that laterally connect them are required as a strength member. Characteristically, the reinforcing frames (8) (8) formed in a rectangular frame shape are incorporated.

The top plate (5) is a superstructure shelf plate (34) and a decorative top plate.
(35) and front and rear top plate covers (36) and (36) that cover the front and rear end surfaces of the upper structure shelf plate (34). The superstructure shelf (34)
It is mainly used as a strength member, and is formed by welding steel plates. For the intermediate side plate (4), two intermediate connecting metal fittings (37) and end side plates (3) are provided. Is connected by bolting using two end connecting fittings (38). The decorative top plate (35) is made of wood. The front and rear top cover (36) (36) is for inserting a name tag indicating the book classification, contents, etc., and is made of a withdrawal material or a synthetic resin material.

The lower structure shelf plate (7) is made of steel plate, and like the upper structure shelf plate (34), two intermediate connecting metal fittings (37) are provided for the intermediate side plate (4). 2 for the end plate (3)
Using the end connecting fitting (38), bolt it down,
Are combined. Further, the lower structure shelf plate (7) has the front and rear end face metal surfaces covered with two front and rear bottom plate covers (39).

Further, a reinforcing frame (8) which is a feature of the present invention
Is formed by welding a square steel tube into a rectangular frame shape when viewed from the front, and has high rigidity, and this has two sets for the intermediate column (14) on the intermediate side plate (4) side. Long bolts (40) (40)
And the nuts (41) and (41), the lateral support (25) is attached to the intermediate support column (14) on the end side plate (3) side by the bolts (42) and (42).
It is fixed by screwing through (25).

As a result of this being combined, the reinforcing frame (8)
Due to the function of brace, the shelf device (1) has a high rigidity that is hard to be deformed by being vertically displaced from side to side. Reinforcing frame (8)
Has another function. That is, when the rack is made taller by connecting the side plates to each other vertically, the rigidity is weak only by connecting the two side plates to the upper and lower ends, but the rectangular frame-shaped reinforcing frame (8) Is positioned over the two side plates connected to each other vertically and is fixed to the four side plates on the upper and lower sides and the left and right sides at the same time, whereby the rack device connected to the upper and lower sides can have high rigidity. This will be described in detail in Example 2.

As shown in FIG. 8, the shelf plate (6) is an intermediate support column.
The shelf bracket (19) is engaged with any of the many locking holes (20) with respect to (14) and is held by the shelf bracket (19). In the double-sided shelving device according to the first embodiment in which books can be put in and taken out from both front and rear sides, the row of the locking holes (20) includes the front and rear end columns (
3) (13) has one row each and intermediate column (14) has two rows, a total of four rows, and two shelves (6) are attached to the front and rear.

(Second Embodiment) A second embodiment of the present invention will be described with reference to FIG. The second embodiment is an example in which a side plate or the like is added to the upper side of the multiple-type shelving device capable of taking in and out books from the front and back sides of the first embodiment to increase the height.

First, the intermediate side plate (51) will be described. From the intermediate side plate (3) assembled to the standard type of Example 1 to the upper lateral reinforcement (15)
The front and rear two corner connecting members (21) are removed, the spacer (52) is inserted between them, and the side plate panel assembly (53) for addition is placed on the top and added.

Similar to the standard type, the side plate panel assembly for extension (53) has two side plate panels for extension which are low in height.
(54) Two front and rear end columns (55) and one intermediate column (56) are connected to the front and back. An insertion portion (57) is provided at a lower portion of the front and rear end column (55) for replenishment.

For the side plate panel assembly (53) for addition, insert the front and rear insertion parts (57) into the square holes at the upper ends of the front and rear end columns (13) and (13) of the standard type, and place the standard type on the upper surface. The upper lateral reinforcing material (15) removed from the above and the two front and rear L-shaped corner connecting members (21) are inserted, and the respective insertion portions are fixed with two bolts to connect the upper and lower sides.

Furthermore, the side plate panel assembly for extension (52)
Is an upper horizontal reinforcement (15) and two front and rear L-shaped corner connecting members (21) above, and two side panel panels below for replenishment.
(54) Two long bolts (22) (22) for bolt holes penetrating two front and rear end columns (55) and one intermediate column (56) horizontally in the front-rear direction like the standard type. ) Through nut (22a) (22
Tightened with a).

The upper cover (26) is provided on the upper surface of the upper lateral reinforcement (15).
The two front and rear end columns (54) for addition are covered with front and rear covers (58, 58) for addition to hide the bolts (22) and the like. Next, the left end side plate (61) will be described. First,
The top cover of the outer side panel (30) is replaced with the left side panel (2) of the standard type of Example 1 by the end side panel spacer (62) having two upwardly facing pins (63). Then, the side plate (64) for the replenishment end is placed on it, and the two pins (63) are inserted into the lower lateral reinforcing member (16) of itself to connect the upper and lower sides.

The structure of the end side plate (64) for addition is exactly the same as that of the standard end side plate (2), except that the height is short. That is, although not clearly shown in FIG. 9 because it has not been disassembled, two inner side panel panels (65) for addition and two front and rear end columns (5) for addition are added.
4) One L-shaped corner connecting member (21), one pair of intermediate support columns (55) for addition, and a pair of upper and lower lateral reinforcing members (15, 16).
After connecting with long bolts (22) and other bolts, cover the outer side panel panel (66) for addition and add inner side panel panels (65) (65) and outer side panel panel (66) with inner bolts. And are fixed and connected.

Single side plates (51) (61) assembled as described above
When assembling a shelving unit using, the strength and rigidity of the added upper part is not sufficient only by connecting with the top plate (5) as a strength member at the upper ends of the side plates (51) (61). .

Therefore, according to the present invention, the reinforcing frame (8) already used in the standard type shelf device (1) of the first embodiment is reinforced by using two left and right reinforcements for the side plates. . That is, although two rectangular reinforcing frames (8) are used in FIG. 9, the lower one is a standard type reinforcing with the brace function already described in the first embodiment. Yes, the upper one is for reinforcing the joints of the side plates this time.
The upper reinforcing frame (8) is provided with horizontal covers (25), (25) and joints on the side faces of the intermediate columns (14) (14) (55) (55) of the four side plates that are vertically and horizontally combined. Horizontal cover (67) (67) (not shown)
It is fixed with a bolt through and the joint is firmly reinforced.

[0046]

According to the present invention, the following effects are produced. (1) With the structure according to claim 1, the reinforcing frame made of steel can act as a bracing to increase the rigidity of the entire shelving device. Since the reinforcing frame itself is not provided on the front side of the shelving device, it does not obstruct the loading and unloading of the loaded items, and is hidden behind the loaded items or books and stands out. On the contrary, the columns can be made thinner by that amount, and the weight of the device can be reduced, and the woody part can be made more conspicuous to emphasize the goodness of the woody material. Therefore, it is particularly suitable as a large bookcase in a library or the like.

(2) With the structure as claimed in claim 2, the same effect as that of claim 1 can be obtained. The reinforcing frame itself is provided in the center part in the front-rear direction, but since loading items are loaded and unloaded from both front and back sides, it does not interfere with loading and unloading,
Hidden behind the load and inconspicuous. As in the previous section, it is ideal for large bookshelves in libraries.

(3) According to the structure as claimed in claim 3, since the reinforcing frame which functions as a brace is connected to the steel intermediate column which is located in the central part in the front-rear direction and is not easily deformed, the rack device is surely connected. The overall rigidity can be increased. The effect of the preceding paragraph can be ensured.

(4) According to the structure as claimed in claim 4, in the case of making a tall shelving device, the members related to the side plates of the standard type or the short shelving device are utilized to provide the members with rigidity. Can be added and added. Contributes to standardization of parts and cost reduction.

[Brief description of drawings]

FIG. 1 is a front view of a compound type shelf device according to a first embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is an exploded perspective view of an end side plate mounting portion of the same.

FIG. 5 is an exploded perspective view of an intermediate side plate mounting portion of the same.

6 is an enlarged transverse plan view taken along the line AA of FIG.

FIG. 7 is an enlarged vertical side view of an intermediate portion taken along line BB in FIG.

FIG. 8 is a cross-sectional view of the shelf plate mounting portion according to the first embodiment of the present invention.

FIG. 9 is an exploded perspective view of a side plate mounting portion of a tall double-type shelf device according to a second embodiment of the present invention.

[Explanation of symbols]

 (1) Shelving device (2) (3) End side plate (4) Intermediate side plate (5) Top plate (6) Shelf plate (7) Lower structure shelf plate (8) Reinforcing frame (9) Book support (10 ) Book stopper (11) Card holder (12) Side plate panel (13) Front and rear end columns (14) Middle column (15) (16) Horizontal reinforcement (17) Groove (18) Bolt hole (19) Shelf bracket (20 ) Locking hole (21) Corner connecting member (22) (23) (32) (40) (42) Bolt (22a) (41) Nut (24) Front and rear cover (25) Side cover (26) (27) Upper part Cover (28) Adjuster (29) Inner side panel (30) Outer side panel (31) Projection (33) End side cover (34) Superstructure shelf (35) Decorative top (36) Front and back cover ( 37) Intermediate connection fittings (38) End connection fittings (39) Bottom plate cover (51) Added intermediate side plate (52) Spacer (53) Extension side plate panel assembly (54) Extension side plate panel (55) ) Front and rear end support columns for addition (56) Intermediate support column for addition (57) Insert (58) For addition Front and rear covers (61) Side plates for additional ends (62) Side plates for ends Spacer (63) Pins (64) End side plates for adding ends (65) Inner side plate for adding ends (66) Outer side plate for adding ends (67) Horizontal cover for replenishment

Claims (4)

[Claims] 1. A shelving device having a plurality of shelves laid between right and left side plates, wherein a steel reinforcing frame formed in a rectangular frame shape when viewed from the front is provided with two shelves.
A shelf device characterized by being fixed to one side plate and connecting them. 2. A shelf device having a large width in the front-rear direction and capable of loading and unloading loads from both front and rear sides, wherein a reinforcing frame is fixed at a central portion of the side plate in the front-rear direction. Shelf equipment. 3. The side plate is formed by connecting a plurality of side plate panels made of wood plates in the front-rear direction through a steel intermediate column, and a reinforcing frame is attached to the intermediate column at the center of the side plate in the front-rear direction. The shelf device according to claim 2, which is fixed. 4. A shelf device in which side plates are vertically connected to make them taller, and a rectangular frame-shaped reinforcing frame is positioned across two side plates connected to each other.
The shelving device according to any one of claims 1 to 3, which is fixed to four upper and lower side plates and left and right side plates and connected thereto.