JPH0951819A - Back plate fitting structure for shelf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the fitting of a back plate by respectively linking front, rear, left and right struts through first and second linking members and providing a first abutting part for stopping the move of the back plate to the rear side while being abutted on the rear side left and right struts and a second abutting part for stopping the move of the back plate to the front side while being abutted on the back of a shelf plate. SOLUTION: Struts 6 and 7 provided at the respective corner parts of a rectangular plane are respectively linked through a first linking member 10, and respective inclined shelf plate 3 and horizontal shelf plate 4 are supported on the side of the first linking member 10. Besides, the lower end parts of struts 6 and 7 are respectively bolted by a front plate 13 and a rear plate 14 as the second linking member, and a bottom plate 5 is placed on horizontal plate parts 13B and 14B. Besides, a plate 26 is composed of a planar part 26A and a side plate part 26B, the move of the back plate 26 to the rear side is stopped by abutting the outer face of the side plate part 26B onto an inner side face 7B of the strut 7, and the move of the back plate 26 to the front side is stopped by abutting the upper side inner face and lower side inner face of the horizontal part 26A onto the back of an upper shelf plate stopper and the back of a shelf plate stopper 5B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shelf back plate mounting structure for displaying and storing articles.

[0002]

2. Description of the Related Art Conventionally, as a shelf for displaying and storing articles, there is one shown in Japanese Utility Model Laid-Open No. 7-5443, for example. In this structure, columns are erected at four corners of a rectangular plane whose opposite sides are parallel to each other, and a plurality of shelf boards are vertically provided between these four columns. Then, the articles are displayed or stored on each shelf provided between the columns.

By the way, articles for replenishment or the like are stored in shelves so that the articles can be quickly replenished by taking out the articles from the stored shelves, or articles displayed on the front side of the shelves. There are cases where it is desired to use the shelves as a storage part, for example, by stacking a large number of spare articles on the rear side of the shelf so that the articles on the rear side of the shelf can be replenished.
In this case, a back plate is provided at the rear of the shelf to prevent articles from falling from the shelf through the opening between the rear columns. When storing the replenishment articles and the like on the shelf, a door for closing the opening between the front left and right columns is provided on the front side of the back plate so as to be openable and closable about a horizontal axis, for example. Will be implemented.

Therefore, when mounting the back plate, for example, when the shelf is made of wood, the back plate is nailed to the rear left and right columns and the back of the shelf plate, and when the shelf is made of steel, the back plate is attached. The holes for screws are formed in the rear left and right columns and the back of the shelf board, and the back board is screwed through these holes.

According to the mounting means of the back plate, when the shelf is made of wood, it is only necessary to make a small hole with a cone in advance in order to nail the back plate to the rear left and right columns and the back of the shelf plate. In addition, the work of hammering in the nail to fix the nail is required, and the attachment of the back plate is troublesome and troublesome. Similarly, when the shelves are made of steel, it is not only necessary to form holes for screws in the back plate, rear left and right columns, and the back of the shelf plate, but also work for screwing the back plate through these holes. Was needed.

[0006]

SUMMARY OF THE INVENTION In view of the above situation, the present invention is to solve the problem that the back plate can be easily and quickly attached.

[0007]

According to the present invention, in order to solve the above-mentioned problems, pillars are erected at four corners of a rectangular plane whose opposing sides are parallel to each other.
The columns of the pair are connected to each other by a first connecting member having a lateral width narrower than the lateral width of the columns, and the two columns of the columns located on the left and right are connected to each other by a second connecting member. , A plurality of shelves are provided between the four columns at predetermined intervals in the up-down direction, and a back plate is provided to close an opening formed by the columns located on the rear left and right sides and vertically adjacent shelves. A first contact portion that abuts on the inner side surfaces of the rear columns located on the left and right sides of the back plate to prevent the back plate from moving to the rear side; and a shelf plate located on the lower side. A second contact portion that contacts the back surface of the back plate and the back surface of the shelf plate located immediately above it to prevent the back plate from moving to the front side, and the lower end surface of the back plate is provided. The upper surface of the second connecting member is contacted and supported. In other words, when assembling a shelf,
First, four pillars are connected by the first connecting member and the second connecting member, and then the shelf boards are sequentially provided. However, the pillars located at the rear left and right and the shelf boards vertically adjacent to each other are formed. When installing a back plate to close the opening
After the shelf on the lower side is attached, the first contact part of the back plate is passed through the opening between the left and right columns located on the rear side.
After being inserted into the space formed by one pillar or inserted into the space formed by the four pillars through the upper opening formed by the four pillars, the first abutment part is located at the rear left and right. While contacting the inner side surface of the back plate, the back plate is moved down to a position where the lower end surface of the back plate contacts the upper end surface of the second connecting member. Then, due to the abutment action of the first abutment portion, the rear plate is prevented from moving rearward, and the lower end face of the back plate is abutted and supported by the upper end face of the second connecting member.
The downward movement of the back plate is prevented. At this time, the second contact portion contacts the back surface of the shelf plate located on the lower side, and the second contact portion contacts the back surface of the shelf plate by providing the shelf plate from above, Movement of the backboard to the front side is prevented.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings. 1 and 2 show a shelf for storing and displaying articles, which includes left and right side plates 1, 1, a top plate 2, a plurality of inclined shelf plates 3,
3, a plurality of horizontal shelf boards 4, 4, a bottom board 5, etc. are configured as main constituent members.

The left and right side plates 1, 1 are columns 6, 7, 8, 9 standing upright in four corners of a rectangular plane whose opposite sides are parallel to each other, and columns 6, 7, 8, respectively. , 9, first support members 10 and 10 that connect the columns 6, 7 or 8, 9 located at the front and rear. The left and right side plates 1 and 1 have the same structure. If one side plate 1 is described in detail, as shown in FIG. 10, the columns 6 and 7 located at the front and rear and the first connecting member for connecting them. 1
0 is composed of a single plate member, so that the work of connecting the columns 6, 7 and the first connecting member 10 is unnecessary. Bending the front and rear end sides of the plate member so that the corners are located at the front, rear, left and right 4
The columns 6 and 7 are formed so as to have a rectangular cross section having side faces.
And a large number of square holes 10A are punched in the flat plate portion which is the first connecting member 10 located between the corner portions of the front and rear columns 6 and 7. The large number of square holes 10A are formed as square holes of 7 mm × 7 mm square for every 10 mm of the flat plate portion, and the state of the back surface of the first connecting member 10 can be grasped through the large number of square holes 10A. I have to. A state in which plate portions 6A and 7A overlapping the first connecting member 10 are secured in advance at the free ends of the plate members in order to reinforce the connecting portions between the corners of the columns 6 and 7 and the first connecting member 10. Then, the front and rear end sides of the plate member are bent to form the columns 6 and 7. And the plate portion 6
A and 7A and the portion of the first connecting member 10 that overlaps A and 7A are connected by spot welding every 10 cm in the vertical direction. The plate member may be made of steel, aluminum, or the like, or may be made of a hard synthetic resin or the like to form the support posts 6, 7 and the first member.
The connecting member 10 may be integrally formed. Alternatively, the columns 6, 7 and the first connecting member 10 may be formed as separate members, and the columns 6, 7 and the first connecting member 10 separately configured may be assembled. As shown in FIG.
A resin cap 11 is fitted to the upper ends of 7, 8, and 9 to cover the openings of the upper ends. The pillar 6,
In addition to forming 7, 8 and 9 in a rectangular cross section, the shapes of the pillars 6, 7, 8 and 9 such as circular cross section, triangular cross section, elliptical cross section and polygonal cross section It is not limited to.

As shown in FIGS. 14 to 16, the top plate 2 is made of a top plate main body 2A made of steel, aluminum or the like, and the same material as the top plate main body 2A, and the top plate main body 2A.
And a top plate reinforcing plate 2B that is welded and fixed to the four corners of the above. Then, the columns 6, 7 and
The upper ends of 8 and 9 are fixed by bolts. For example, upper and lower 2 for fixing to the upper end of the pillar 7 by bolts.
Holes 7b, 7b formed at the places are shown in FIG.
The top plate main body 2A and the top plate reinforcing plate 2B may be made of materials other than the above materials such as hard synthetic resin.

As shown in FIGS. 1 and 11, each of the inclined shelf plates 3 has a size of 7 mm × 7 m for every 10 mm as in the side plate 1.
The square hole 3a of m square is formed. Then, of the four side surfaces of the pillars 6, 7, 8, 9 on the two side surfaces adjacent to the first connecting member 10 side, 28 in the vertical direction, respectively.
Horizontally long slits 6a with dimensions of 4 mm x 12 mm for each mm,
7a, 8a, 9a are formed and these slits 6a, 7a
Predetermined slits 6a, 7a, 8 of a, 8a, 9a
The shelf receiving member 12 is fitted to the a and 9a, and the inclined shelf board 3 is placed and supported on the shelf receiving member 12. The change in the position of the inclined shelf plate 3 in the front-rear direction is prevented by the abutting action of the corner portion of the inclined shelf plate 3 and one side surface of the columns 6, 7, 8, 9 corresponding thereto. . As shown in FIGS. 12 and 13, the shelf receiving member 12 is composed of a locking portion 12A formed in a bent shape at an upper end portion thereof and a mounting portion 12B for continuously mounting a shelf plate which is integrally connected to the locking portion 12A. There is.

As shown in FIGS. 8 and 9, each of the horizontal shelves 4 has a size of 7 mm × 7 for every 10 mm, like the inclined shelf 3.
A shelf main body 4A in which square holes 4a of mm square are formed, and a shelf stopper 4 which is fixedly locked to the back of the shelf main body 4A.
It is composed of B and. Holes 4b are formed in several places in the horizontal direction of the vertical plate portion on the back of the shelf main body 4A, and locking pieces 4C that can be locked and fixed in the holes 4b in the shelf stopper 4B from the horizontal direction. Is formed by cutting and raising.
This horizontal shelf board 4 is also the shelf receiving member 1 like the inclined shelf board 3.
2 is placed and supported on. Further, the position change of the horizontal shelf board 4 in the front-rear direction is prevented by the abutting action between the corner portion of the horizontal shelf board 4 and one side surface of the corresponding columns 6, 7, 8, 9 similarly to the above. I am configuring. The shelf body 4A and the shelf stopper 4B may be integrally formed.
Further, the shelf plate stopper 4B may be omitted.

As shown in FIGS. 2 and 19, the bottom plate 5 is
Is the same as the horizontal shelf board 4 shown in FIG.
And a shelf plate stopper 5B that is locked and fixed to the shelf plate body 5A. Although the square hole 4a formed in the horizontal shelf plate 4 is not formed in the shelf main body 5A, the square hole 4a may be formed similarly to the horizontal shelf plate 4 as described above. The mounting portion of the bottom plate 5 will be described in detail. The front plate 13 and the rear plate 14 as the second connecting members for connecting the left and right columns 6, 8, 7 and 9 are connected to the columns 6, 8 and 7, It is bolted across the lower ends of 9. Since the front plate 13 and the rear plate 14 have the same structure, the rear plate 14 will be described. A vertical plate portion 14A is formed by bending the upper end portion of the rear plate 14 inward downward 180 degrees.
After that, the upper end portion is further bent horizontally inward by 90 degrees to form a horizontal plate portion 14B projecting inward of the rear plate 14, and as shown in the figure, these front plate 13
And the bottom plate 5 on the horizontal plate portions 13B and 14B of the rear plate 14.
Is placed and supported. The contact between the outer surface of the front vertical plate portion of the shelf main body 5A of the bottom plate 5 and the inner surface of the vertical plate portion of the front plate 13, and the outer surface of the vertical plate portion of the shelf plate stopper 5B of the bottom plate 5 and the rear plate 14 are described. The contact action with the vertical plate portion 14A prevents the bottom plate 5 from moving in the front-rear direction.
The shelf body 4A or 5A and the shelf stopper 4B or 5B may be integrally formed. Although the front plate 13 and the rear plate 14 are mounted across the lower ends of the columns 6, 8 and 7, 9 but may be mounted in the middle or upper side of the columns 6, 8, 7 and 9. .

FIG. 23 shows an example in which a large number of the shelves are connected. This shows a structure of a connecting portion in which a large number of shelves are connected in an L shape. That is, the corner top plate 15 and the plurality of corner shelf plates 16 that form the shelves located at the corners.
Is formed in an arc shape having a quarter of the circumference as shown in the drawing, and the corner top plate 15 and the plurality of corner shelf plates 16 are placed and supported on the shelf receiving member 12 in the same manner as described above. are doing. In addition, the columns 7 and 9 arranged adjacent to the corners shown in the figure
As shown in FIG. 24, the two are connected and fixed by a bifurcated connecting fitting 17. That is, the bifurcated leg portions 17A, 17A of the connecting metal fitting 17 are inserted into the laterally long slits 7a, 9a formed in the columns 7, 9 and the holes 17a, 17a formed in the inserted leg portions 17A, 17A are inserted. Screws are fastened through the slits 7a, 9a located directly below the slits 7a, 9a to connect and fix the two columns 7, 9. The connecting fitting 17 may be attached not only at one position in the vertical direction but also at two or more positions to enhance the connecting strength.

As shown in FIG. 1, two reinforcing members 18 for increasing the shape retention strength of the shelf are attached to the back side of the shelf in a strung state. More specifically, FIG. 10 and FIG.
And, as shown in FIG. 18, among the slits 7a formed on one of the columns 7 located on the rear side, the slit 7a located near the back side of the second inclined shelf plate 3
To the mounting bracket 19 that can be unlocked,
Of the slits 9a formed on the other column 9 located on the rear side, the mounting bracket 19 having the same configuration as that described above is provided in the slit 9a located near the back side of the horizontal shelf board 4 at the first stage from the bottom. It is locked. Then, one end of the plate portion 18A of the one reinforcing member 18 is connected to one mounting member 19 by a screw 20A and a nut 20B, and the other plate portion 18A of the reinforcing member 18 is connected to the other mounting member 19 by a screw 20A. And the nuts 20B to connect the columns 7 and 9
Reinforcing members are connected to each other. The reinforcing member 18 on the other side is one of the columns 9 located on the rear side similarly to the above.
Among the slits 9a formed in the above, among the slits 9a located in the vicinity of the back side of the second inclined shelf plate 3 and the slits 7a formed in the other post 7 located on the rear side, It is attached across the slit 7a located near the back side of the horizontal shelf board 4 of the first stage from the bottom.

As shown in FIGS. 20 and 21, the lower ends of the columns 6, 7, 8 and 9, respectively, are the columns 6 ...
The adjuster receiving member 21 including the vertical plate portions 21A and 21A that contact two adjacent inner surfaces of the four inner surfaces and the bottom plate portion 21B that is connected to the vertical plate portions 21A and 21A are fitted into the adjuster receiving member 21 and A pair of upper and lower holes 21a formed in the plate portion 21A,
21a and screws 6, 22 inserted through holes 6b, 6b formed in the lower part of the columns 6 ... Can fix the adjuster receiving member 21 to the columns 6.
The bottom plate portion 21B of the adjuster receiving member 21
By changing the screwing position of the bolt 24 screwed to the square nut 23 welded to the lower surface of the column, the heights of the columns 6, 7, 8, 9 with respect to the floor surface can be changed and adjusted.

As shown in FIG. 22, a pair of brackets 25 that are engaged with the threaded portions 24A of the bolts 24 attached to the lower portions of the columns 6, 7 or 8, 9 located at the front and rear.
A stabilizer 25 to which A and 25A are welded is provided, and by attaching this stabilizer 25, the shelf can be stably supported. In addition, this stabilizer 25
Is a bracket 25A on the threaded portion 24A of the bolt 24,
After locking 25A, the adjuster receiving member 21 ...
Will be fixed to the struts 6, 7, 8 and 9 with screws 22.

As shown in FIGS. 2 to 5, a spine that closes an opening 37 formed by the bottom plate 5, the horizontal shelf plate 4 located immediately above the bottom plate 5, and the columns 7 and 9 located on the rear side. A plate 26 is provided. If the back plate 26 is described in detail,
The back plate 26 is a horizontal shelf plate 4, 4 having a horizontal length equal to the distance between the corners of the columns 7, 9 positioned rearward and leftward and rightward, and a vertical length vertically positioned. A flat plate portion 26A having a dimension slightly longer than the distance between the flat plate portion 26A and a side plate portion 26 which is formed by bending the flat side portion 26A inwardly by 45 degrees on the lateral side portion.
B and 26B. The side plate portions 26B, 2
The outer surfaces 26b and 26b of 6B are in contact with the inner side surfaces 7B and 9B of the columns 7 and 9 located at the rear left and right, respectively, and the back plate 2
6 constitutes a first contact portion for preventing the rearward movement of 6 and includes an upper inner surface 26a and a lower inner surface 26 of the flat plate portion 26A.
Secondly, c is in contact with the back surface of the shelf plate stopper 4B located on the upper side and the back surface of the shelf plate stopper 5B located immediately below it to prevent the back plate 26 from moving forward.
A lower end surface 26 of the back plate 26, which constitutes a contact portion
C is supported in contact with the upper end surface 14a of the rear plate 14 which is the second connecting member. Therefore, first, after mounting the front plate 13 and the rear plate 14, the bottom plate 5 is placed and supported. From this state, with the back plate 26 in an inclined posture, through the opening 37 between the columns 10 and 12 located on the rear side, or through the upper openings 38 of the four columns 6, 7, 8, and 9,
The side plate portions 26B and 26B of the back plate 26 are provided with four columns 6, 7,
After being once placed in the space formed by 8 and 9, the back plate 2
The outer surfaces 26b and 26b of the six side plate portions 26B and 26B are brought into contact with the inner side surfaces 7B and 9B of the columns 7 and 9 located rearward and leftward. Thereafter, the back plate 26 is lowered so that the lower inner surface 26c of the flat plate portion 26A of the back plate 26 abuts on the back surface of the shelf plate stopper 5B of the bottom plate 5, and the lower end surface 26C of the back plate 26 is attached to the back plate 14. Touches the upper end surface 14a of the. At this time, the lower end surfaces of the side plate portions 26B and 26B are brought into contact with and supported by the upper end surfaces of the column mounting plate portions 14C and 14C, which are bent and formed on both lateral sides of the rear plate 14, respectively. In this state, the horizontal shelf plate 4 located immediately above the bottom plate 5 is placed and supported on the shelf receiving member 12, whereby the flat plate portion 26A of the back plate 26 is supported.
The inner surface 26a of the upper side is the shelf plate stopper 4B of the horizontal shelf plate 4.
The back plate 26 is attached to the back face of the back plate 26 while being prevented from moving in the front-rear direction and the left-right direction. After that, the inclined shelf plates 3 and 3 and the top plate 2 are attached, and the assembling work of the shelf is completed.

On the front side of the back plate 26, the door 2 for closing the opening between the left and right columns 6, 8 located on the front side.
7 is provided so as to be swingable and openable around a horizontal axis X. More specifically, as shown in FIG. 2 and FIGS.
A door mounting bracket 28 is fixed to one inner side surface of 8 by a plurality of bolts 29, and a door connecting rocking arm is attached to a plate portion 28A integrally connected to a lower portion of the door mounting bracket 28. Thirty
One end side of the door is pivotally connected by a screw 31, and the other end side of the door connecting swing arm 30 and an L-shaped metal fitting 32 screwed to the back surface of the door 27 are connected by a screw 33A. Thus, the door 27 can be swingably opened and closed around the horizontal axis X. A stopper 34 for restricting the maximum opening angle of the door 27 is provided across the door mounting bracket 28 and the door connecting swing arm 30. That is, one end of the stopper 34 is attached to the swing arm 30 for connecting the door with the screw 3
3B is pivotally connected, and the other end is movably inserted into a vertically elongated slit 28B formed in the door mounting bracket 28, and at the end portion of the stopper 34 on the door mounting bracket 28 side, the door 27 is attached. A contact portion 28A that contacts the inner surface of the door mounting member 28 at the maximum opening angle is integrally provided. The maintenance of the closed state of the door 27 is due to the attracting action of the metal piece 35 attached to the inner surface upper side portion of the door 27 and the magnet 36 attached to the portion of the shelf corresponding to the metal piece 35. . Instead of this, a locking mechanism capable of locking and unlocking may be provided to maintain the closed state of the door 27. Reference numeral 39 shown in the drawing is a handle attached to the front surface of the door 27.

Reference numeral 40 shown in FIGS. 1 and 2 denotes a sorting shelf placed on the horizontal shelf board 4 located at the lowest stage. This sorting shelf is configured as a box body having a total of nine storage units arranged in three rows of upper and lower and three rows of right and left. The sorting rack may be omitted.

[0021]

According to the back plate mounting structure of the present invention as described above, the back plate can be mounted only by inserting the back plate through the opening between the rear left and right columns or through the upper openings of the four columns. It can be completed and the back plate can be installed more easily and quickly compared to conventional nailing and screwing, and parts such as nails and screws required for mounting the back plate It is possible to eliminate the need for pre-opening holes for holes in the columns or the back of the shelves, and to easily and quickly assemble the shelves.

[Brief description of drawings]

[Figure 1] Front view of the shelf

[Figure 2] Side view of the shelf with some cutouts

FIG. 3 is a perspective view showing a mounting structure of a back plate.

FIG. 4 is a vertical sectional side view showing a main part of a back plate.

FIG. 5 is a cross-sectional plan view showing a door mounting portion.

FIG. 6 is a front view showing a mounting portion of a door.

FIG. 7 is an exploded perspective view showing a door mounting portion.

FIG. 8 is an exploded perspective view showing the relationship between horizontal shelves and columns.

FIG. 9 is an exploded perspective view of a horizontal shelf board.

FIG. 10 is a perspective view with a side plate partially omitted.

FIG. 11 is a vertical cross-sectional side view showing a mounted state of an inclined shelf board.

FIG. 12 is a vertical sectional side view of the shelf receiving member.

FIG. 13 is a perspective view of a shelf receiving member.

FIG. 14 is a bottom view of the top plate.

FIG. 15 is a side view of the top plate with a part cut away.

FIG. 16 is a perspective view of a top plate reinforcing plate.

FIG. 17 is a partially cutaway front view of the reinforcing member.

FIG. 18 is an exploded perspective view showing a mounting portion at one end of the reinforcing member.

FIG. 19 is an exploded perspective view showing the connection structure of the lower part of the column.

FIG. 20 is an exploded perspective view of an adjuster receiving member.

FIG. 21 is a cross-sectional plan view of the adjuster receiving member.

FIG. 22 is a perspective view of a stabilizer plate.

FIG. 23 is a partially omitted perspective view showing a corner connection structure of a shelf.

FIG. 24 is an exploded perspective view showing a connecting portion of columns.

[Explanation of symbols]

 1 side plate 2 top plate 2A top plate body 2B top plate reinforcing plate 2a hole 2b notch 3 inclined shelf plate 3a square hole 4 horizontal shelf plate 4A shelf plate body 4B shelf plate stopper 4a square hole 4b hole 4C locking piece 5 bottom plate 5A Shelf board body 5B Shelf board stopper 6 Strut 6A Plate part 6a Slit 7 Strut 7A Plate part 7B Inner side 7a Slit 7b Hole 8 Strut 8A Plate part 8a Slit 9 Strut 9A Plate 9B Inner side 9a Slit 10 1st Connecting member 10A Square hole 11 Cap 12 Shelf receiving member 12A Locking part 12B Mounting part 13 Front plate (second connecting member) 13B Horizontal flat plate part 14 Rear plate (second connecting member) 14A Vertical plate part 14B Horizontal flat plate part 14a Top surface 15 Corner top plate 16 Corner shelf 17 Connecting bracket 17A Leg 17a Hole 18 Reinforcing member 18A Plate 19 Mounting bracket 20A Screw 20B Nut 21 Adjuster receiving member 21A Vertical plate 21B Bottom plate 21a Hole 22 Screw 23 Square Nut 24 Bolt 24A Screw 25 Stabilizer 25A Bracket 26 Back plate 26A Plate part 26B Side plate part 26C Lower end surface 26a Upper inner surface 26b Outer surface 26c Lower inner surface 27 Door 28 Door mounting bracket 28A Plate part 28B Slit 28C contact part 29 Bolt 30 Door connecting swing arm 31 Screw 32 Bracket 33A screw 33B screw 34 Stopper 35 Metal Piece 36 Magnet 37 Opening 38 Opening 39 Handle 40 Sorting Shelf X Horizontal Axis Core

Claims (4)

[Claims] 1. A pillar is erected at four corners of a rectangular plane whose opposite sides are parallel to each other, and two pairs of pillars located at the front and rear of these pillars have a lateral width larger than the lateral width of the pillars. The narrow first connecting members are connected to each other, and the two sets of columns located on the left and right are connected to each other by the second connecting members, and a plurality of shelf boards are vertically arranged between the four columns. Providing a back plate that is provided at a distance and closes an opening formed by the columns located on the rear left and right sides and the shelf plates that are vertically adjacent to each other, and the inside of the columns located on the rear left and right sides is provided on the back plate. A first contact portion that contacts the side surface to prevent the rear plate from moving to the rear side; a back surface of the shelf board located on the lower side and a back surface of the shelf board located immediately above it. A second abutment portion that abuts against the backboard to prevent the backboard from moving forward; A back plate mounting structure for a shelf, the lower end surface of which is abutted against and supported by the upper end surface of the second connecting member. 2. Corners located at the front, rear, left and right of the column 4
The cross-section has a rectangular cross-section having side faces, and the corner portions of the columns located in the front and rear are connected by the first connecting member, and the contact surface of the first contact portion is the second contact portion. The back plate mounting structure for a shelf according to claim 1, wherein the back plate mounting structure is configured so as to face inwardly at 45 degrees with respect to a virtual extension line of the contact surface. 3. A back stopper of the shelf board is provided with a stopper member in an up-and-down posture that projects above the shelf board and receives articles on the shelf board, and the second contact portion is located on the upper side. The back plate mounting structure for a shelf according to claim 1, wherein the back plate mounting structure is configured to be in contact with the back surface of the stopper member and the back surface of the stopper member located immediately below the stopper member. 4. The back plate mounting structure for a shelf according to claim 1, wherein a door that closes an opening between the left and right front columns is provided on the front side of the back plate so as to be openable and closable.