JP2000245539A - System desk shelf for working desk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system desk shelf for a working desk which has no unnecessary facility if a bookstand is used as a part of a bookshelf in a state of which the bookstand is installed in a desk shelf main body and can provide original book supporting facility of the bookstand when the bookstand is separated from the desk shelf main body and used by putting on a desk worktop independently and is intended to use various ways and cut down the cost and improve the outside appearance simultaneously. SOLUTION: A bookstand 2 provides single or plural small partition members 22 on an upper face of a putting plate 21 with standing and a supporting member 8 provides siderest rods 8B and 8B with extending from both ends of a straight line-shaped backrest rod 8A to a front lower part to install the supporting member 8 which is placed at a back part or the back part and both side face parts of the bookstand and supports books at a suitable place of the bookstand and the desk shelf main body 1 so as to be put on and taken off selectively. Then, supporting openings 31, 33 which engage an end part of the siderest rod and concave parts 32, 34 which engage and support a central part of the backrest rod are provided at the right place of the bookstand and the desk shelf main body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system desk shelf for a study desk, and more particularly, to a system desk shelf for a study desk in which a bookstand can be detachably attached to a desk shelf body so that the use form can be changed. About.

[0002]

2. Description of the Related Art Conventionally, there have been provided various types of desk shelves in which an inner space formed by both side plates and a back plate is incorporated with a shelf plate or a bookstand as a desk shelf to be placed and fixed on a rear portion of a tabletop of a learning desk. In order to secure an installation space for an electronic device such as a computer, a device having a detachable shelf board is also provided.

[0003] For example, Japanese Patent Publication No.
Japanese Patent No. 10924 discloses that a small bookcase-like book stand is removably mounted in an internal space formed by both side plates and a back plate as a desk shelf, and between a side plate that is opposed and spaced apart and a side plate of the book stand. A structure in which a shelf board is detachably mounted is disclosed. Japanese Patent Publication No. 5-5485 discloses a desk shelf in an internal space formed by both side plates and a back plate. There is disclosed a structure in which a book is detachably attached while leaving a space therebetween.

[0004] In any of the desk shelves described in the publications, the book stand or the main stand is detached from the both sides and the rear plate so that the book stand or the main stand can be detached and placed on the top plate of the learning desk and used independently. And integrated with all the functions of supporting the book itself.
However, when the bookstand or bookstand is attached to the desk shelf body and used as a part of the bookcase, the functionally unnecessary side plate and back plate always exist in a state of overlapping the side plate and the back plate of the desk shelf body. As a result, not only is the storage space for books narrowed, but also the cost is increased due to the increase in the number of members, and the appearance is impaired.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned situation, the present invention aims at solving the problem by mounting a bookstand in the interior space of a desk shelf main body and placing the bookstand on a rear portion of a tabletop of a learning desk. Or, in a system desk shelf capable of separating the bookstand from the desk shelf body and mounting the bookstand on a desk top plate,
When the bookstand is attached to the desk shelf body, there is no unnecessary function to use the bookstand as a part of the bookcase, and the bookstand is separated from the desk shelf body and placed on the tabletop independently. The present invention provides a system desk shelf for a study desk, which can be provided with the original book support function when used as a book, realizes various use modes, and simultaneously reduces costs and improves appearance. It is in.

[0006]

According to the present invention, in order to solve the above-mentioned problems, a bookstand is mounted in an internal space of a desk shelf main body and placed on a rear portion of a tabletop of a learning desk, or from a desk shelf main body. A system desk shelf capable of separating the bookstand and placing the bookstand on a desk top plate, wherein the bookstand has one or more small partition members erected on the upper surface of the placement plate, A system desk shelf of a learning desk in which a support member capable of supporting a book located on the back portion or the back portion and both side portions of the book stand is selectively and detachably attached to a proper position of the book stand and the desk shelf body. Configured.

[0007] The support member is formed by extending a side contact rod forward and downward from both ends of a linear back contact rod. A concave portion is provided for engaging and supporting an intermediate portion between the support hole into which the end portion is fitted and the back support rod. A support hole is formed at the front of both sides of the mounting plate of the book to fit the end of the side contact rod of the support member, and an intermediate portion of the back contact rod is formed on the back side or the top side of the small partition member. A concave portion for engaging and supporting the upper shelf, the supporting member can be detachably attached to an upper shelf constituting a desktop shelf main body, and a single stand is provided on the upper surface of the upper shelf at the front of a fixed shelf plate of the upper shelf. Or, at a position sandwiching a plurality of small partition plates, a support hole for inserting an end of a side contact rod of the support member is formed, and an intermediate portion of a back contact rod is supported on an upper surface side of the small partition plate. More preferably, a concave portion is provided.

[0008] In addition, in the present invention, the one or more drawers are provided between leg plates provided on both sides of the placing plate,
It is also preferable that the leg plate is set so as to project below the lower end of the drawer.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. FIG. 1 shows a usage example in which a system desk shelf A including a table shelf main body 1 and a book 2 is placed on the rear of a top plate 4 of a learning desk 3, and FIG.
FIG. 3 is a perspective view showing a structure in which the book rack 2 is detachably attached to the desk shelf main body 1. In the present embodiment, an upper / lower separation type desk shelf is exemplified as the desk shelf main body 1, that is, a structure in which an upper shelf 6 is placed on a lower shelf 5 and connected so as to be separable from each other. In the present invention, the lower shelf 5 and the upper shelf 6 may be integrated, or may be constituted only by the lower shelf 5. Here, in the figure, reference numeral 7 denotes a shelf board, and 8 denotes a support member.

In a system desk shelf A according to the present invention, a bookcase 2 is detachably provided in an internal space of a desk shelf main body 1, and a book is supported at a back portion or a back portion and both side portions of the bookcase 2. A support member 8 that can be selectively detachably attached to an appropriate position of the book 2 and the desk shelf main body 1;
The bookstand 2 is mounted on the desk shelf main body 1 and placed on the back of the top plate 4 of the learning desk 3 (see FIGS. 1 and 2), or the desk shelf body 1
Can be placed on the tabletop 4 (see FIG. 6).

First, a desk shelf body 1 according to the present invention is shown in FIGS.
This will be described with reference to FIG. The desk shelf body 1 can connect and separate the lower shelf 5 and the upper shelf 6 as described above. As a means for placing and fixing the lower shelf 5 on the tabletop 4, an appropriate fixing means such as a method using a fastener 9 as in the related art can be adopted.

In the lower shelf 5, a back plate 11 is provided between the rear portions of both side plates 10, 10, and a partition plate 12 is attached to the back plate 11 at the center between both side plates 10, 10, and a lower end of the partition plate 12 is provided. Is positioned above the lower end of the side plate 10 so that a space is formed between the learning plate 3 and the top plate 4. Also,
In the upper shelf 6, a fixed shelf 14 is provided at an intermediate position between the upper and lower plates 13 and 13 in the vertical direction.
A curtain plate 15 is provided between 3 and 13 and a fixed shelf plate 14 is provided.
Above, a back plate 16 is provided with a gap between the fixed shelf plate 14 and a plurality of small partition plates 17,... And a rear edge thereof is fixed to the back plate 16. Further, the space between the back plate 11 of the lower shelf 5 and the curtain plate 15 of the upper shelf 6 is closed by a blind plate 18 attached to the back plate 11 of the lower shelf 5. A light source 19A of a lighting device 19 attached to the lower shelf 5 is disposed at a position on the lower surface of the front edge of the fixed shelf plate 14 of the upper shelf 6. In the present invention, the structure of the upper shelf 6 is not particularly limited, and the lower shelf 5 and the upper shelf 6 are integrated, that is, the side plate 10 of the lower shelf 5 and the upper shelf 6
And the side plate 13 may be a single piece.

The upper shelf 6 is placed on the lower shelf 5 and the upper and lower side plates 10 and 13 on both sides are pulled together and connected to each other by a suitable connecting tool. An inner space is formed by both side plates 10 and 10 of the lower shelf 5, a back plate 11 and a fixed shelf 14 of the upper shelf 6, and the bookstand 2 is detachably mounted in the inner space, and the shelf plate 7 is also provided. It is mounted so that it can be freely attached and detached, and the position of the book 2 and the shelf 7 can be changed to make it possible to change the combination, so that the use form can be easily changed.

That is, the inner surfaces of both side plates 10A and 10B facing the interior space of the desk shelf main body 1 and the partition plate 12
, Respectively, can be detachably attached to both sides thereof, and the book 2 and the shelf plate 7 have substantially the same width and can be supported by the same supports 20,. A support member 20 having both sides of the main body 2 attached to one side plate 10A and the partition plate 12 facing the side plate 10A,
The shelf 20 is detachably supported, and both side portions of the shelf plate 7 are detachably supported by supports 20 and 20 attached to the other side plate 10B and the support 20 facing the other side plate 10B. Here, the right side plate 10 is shown as “10A” and the left side plate 10 is shown as “10B”.

More specifically, the book 2 is provided with a mounting plate 21.
One or a plurality of small partition members 22, 22 are erected on the upper surface of the mounting plate 21, and leg plates 23, 2 provided on both sides of the mounting plate 21.
3, a drawer 24 is provided, and the leg plate 23,
23 is set to protrude below the lower end of the drawer 24, and even when the book 2 is separated from the desk shelf main body 1 and placed on the tabletop 4, the drawer 24 can be easily pulled out and pushed in. I can do it. In the present embodiment, the small partition member 22 has a plate shape. However, a substantially U-shaped or inverted U-shaped metal fitting obtained by bending a metal wire may be used. The shelf plate 7 is a normal single plate, but the shape is not particularly limited, and an inverted U-shaped bracket for partitioning or the like can be detachably provided on the upper surface. .

In the present embodiment, the support 20
Is formed by bending a metal rod into a substantially U-shape in plan view, and the engaging portions 20 are formed at right angles to both ends of the horizontal support rod 20A.
B, 20B are formed using a line dowel (FIG. 3
reference). A pair of locking holes 25 are formed on the inner surfaces of the side plates 10 facing the internal space of the lower shelf 5 and on both sides of the partition plate 12 so as to be substantially horizontal. I have. Also, both side plates 10, 10 and partition plate 12
Mounting hole 26 penetrating inward and outward below the locking hole 25
Are formed respectively. The two engaging portions 20B, 20B of the support 20 are detachably fitted into the locking holes 25, 25, and the support rods 20A project substantially horizontally along the side surfaces of the side plate 10 or the partition plate 12. It is attached in the state where it did. However, a pin dowel that can be fitted or screwed into the locking holes 25 may be used instead of the line dowel.

On both sides of the mounting plate 21 of the main stand 2, support grooves 27, 27 which are open rearward to receive the support rod 20A of the support tool 20 in a slidable manner are formed. Similarly, support grooves 2 open to the rear on both sides
8, 28 are formed.

Then, as shown in FIG.
The engaging portion 20 of the support 20 is
B and 20B are fitted and attached, and the partition plate 1
The engaging portions 20B, 20B of the support 20 are fitted into the lower locking holes 25, 25 on both sides of the second fitting 2 and attached. then,
The book 2 is inserted into the space between the right side plate 10A and the partition plate 12 from the front, and the support rods 20A, 20A of the supports 20, 20 attached to the side plate 10A and the partition plate 12 are supported on both sides by the support grooves. 27, 27, lock it, and slide it until it comes into contact with the back plate 11, and attach it to a predetermined position. In this state, the mounting holes 2 formed in the side plate 10A and the partition plate 12 are formed.
Fixing screws 29, 29, through which the screws 6, 26 penetrate from the outside, are screwed and fixed to screw holes 30, 30 provided in the leg plates 23, 23 of the main stand 2. On the other hand, the shelf plate 7 is inserted from the front into the space between the left side plate 10B and the partition plate 12, and the side plate 10B
And the support rods 20 of the supports 20 attached to the partition plate 12
A, 20A are received and locked in the support grooves 28, 28 on both sides, and are slid until they come into contact with the back plate 11, and are mounted in predetermined positions. Here, a space is formed between the book 2 and the shelf 7 supported by the supports 20,... Attached to the lower stage as described above, and the top plate 4, so that documents, books, etc. The space can be used when it is spread on the top plate 4.

Further, in the system desk shelf A of the present invention, a support member 8 which can support a book and is located at the back and both side portions of the book 2 is selected at an appropriate position between the book 2 and the desk shelf body 1. It can be attached detachably. That is, the support member 8 is formed by extending the side contact rods 8B, 8B from both ends of the linear back contact rod 8A forward and downward, and is formed by bending a metal rod in the present embodiment. . Support holes 31 for inserting the ends of the side contact rods 8B of the support member 8 are formed in front portions of both sides of the mounting plate 21 of the main stand 2, and a back side of the small partition member 22. A concave portion 32 for engaging and supporting the intermediate portion of the back support rod 8A. When the height of the small partition member 22 is low, the concave portion 32 can be formed at the rear end of the upper surface side. Further, the small partition member 22 is formed by bending a metal rod. In the case where a part of the metal rod is
The concave portion 32 may be bent in a letter shape. On the other hand, the ends of the side contact rods 8B, 8B of the support member 8 are placed at positions in front of the fixed shelf plate 14 of the upper shelf 6 with one or more small partition plates 17 erected on the upper surface thereof. Support holes 33 to be fitted,
33, and a concave portion 34 for engaging and supporting the intermediate portion of the back support rod 8A is provided at the rear end of the small partition plate 17 on the upper surface side.

That is, in a state where the book rack 2 is mounted on the desk shelf main body 1, the back plate 11 of the lower shelf 5 is located on the back side of the mounting plate 21 of the book rack 2 without using the support member 8. At the same time, since the side plate 10 and the partition plate 12 of the lower shelf 5 are located on both sides, the book can be stably supported by the small partition member 22. Therefore, the support member 8 is provided with the side contact rods 8 in the support holes 33 of the upper shelf 6.
By fitting the ends of the supporting members 8 and 8B into the concave portions 34 of the small partition plate 17, the side supporting rods 8B and 8B of the support member 8 Partition plate 17
Can be used to stably support books as well. On the other hand, in a use mode in which the book 2 is separated from the desktop shelf main body 1 and is placed independently on the top plate 4 of the learning desk 3 as shown in FIG. Of the small partitioning member 22, 2 by engaging the back abutment rod 8A with the concave portion 32 of the small partitioning member 22.
It is possible to stably support the book between the side contact rods 8B, 8B also on the outer portion than 2. Accordingly, in the present invention, the small partition member 22 erected on the mounting plate 21 of the main stand 2 may be singular.

Further, it is also possible to mount the main stand 2 on the desk shelf main body 1 while the supporting member 8 is mounted on the main stand 2. The support member 8 removed from the main stand 2 can be mounted on the upper surface of the shelf 7 of the lower shelf 5 in addition to being mounted on the upper shelf 6 as described above. In this case, the shelf plate 7 is formed with a support hole in which the side contact rods 8B of the support member 8 are fitted.

Here, when the horizons 2 are separated from the desk shelf main body 1 and are independently placed on the top plate 4 of the learning desk 3, a stopper 9 for attaching the desk shelf main body 1 to the top plate 4 is provided. Utilizing this, a mounting screw 35 penetrating the fastener 9 mounted on the side edge of the top plate 4 is screwed into a screw hole 30 formed in the leg plate 23,
It is also preferable to prevent the book 2 from suddenly moving on the top plate 4. The screw hole 3 from the lower end of the leg plate 23
The height of 0 may be made equal to the height from the lower end of the desk shelf main body 1 to a screw hole (not shown) into which the mounting screw 35 of the fastener 9 is screwed.

Next, a structure for attaching the lighting fixture 19 to the desk shelf main body 1 will be briefly described with reference to FIG. The lighting device 19 is attached to the lower shelf 5 as described above, and the mounting structure is such that the stand 19B of the lighting device 19 is screwed behind the back plate 11 of the lower shelf 5 with the mounting brackets 36, 36. Things. The upper portion of the stand portion 19B extends forward bypassing the upper end of the blind plate 18 extending above the back plate 11, and the light source portion 19A is attached to the front end thereof. When the upper shelf 6 is placed on and connected to the lower shelf 5, a cutout (not shown) for allowing the stand portion 19 </ b> B to escape is formed in the curtain plate 15 of the upper shelf 6.
Further, as shown in FIG. 6 and FIG.
It can be detached from the desk shelf main body 1 and can be directly attached to the edge of the top plate 4 of the learning desk 3. To do that,
As shown in FIG. 7, a clamp member 37 for holding the edge of the top plate 4 is screwed to the lower end of the stand 19 </ b> B of the lighting device 19, and stands on the edge of the top plate 4 via the clamp member 37. Can be set up.

As shown in FIGS. 1 and 2, the system desk shelf A according to the present invention is mounted and fixed on the rear part of the top plate 4 of the learning desk 3 with the book rack 1 attached to the desk shelf body 1. When used, the shelf board 7 can be removed in order to secure a space for installing the electronic device E such as a personal computer in the desk shelf main body 1, and the space from which the shelf board 7 has been removed. Can accommodate a monitor such as a CRT. The shelf 7 can be replaced above the book 2 or a bookshelf provided in the foot space below the top plate 4 of the learning desk 3.
When only the dormitory 2 is placed on the top plate 4 of the learning desk 3, it is natural that the electronic device E can be installed in a space beside the dormitory 2.

As shown in FIG. 8, the desk shelf main body 1 is separated from the desk shelf main body 1 by one side surface.
It is also possible to attach the partition plate 12 which has been removed from the above. Further, it is also possible to attach a back support plate 38 to the back side of the main stand 2. Note that the back support plate 38 may be the shelf plate 7 removed from the desk shelf main body 1.

Further, the shelf plate 7 of the desk shelf main body 1 according to the present invention.
As shown in FIG. 1, a learning board 39 can be placed on the top and used. The learning board 39 basically includes a main body 40, a binder 41 for holding a document, and a storage 42 for a writing instrument. 9 to 12 show various forms thereof. First, the learning board 39 shown in FIG. 9 is a book body in which the main body 40 has a bottom plate 43, both side plates 44, 44, and a back plate 45.
A gap is provided between the side plates 44, 44 along the rear edge thereof and the back plate 45 to form engagement pieces 46, 46.
46 and the back plate 45 can hold both sides of the binder 41 in an upright state.
The housing portion 42 can be fitted in the housing 0. Then, the binder 41 is attached to the upper part of the board 47 by a clip 48.
Is provided to hold documents, and can be used alone. In addition, the housing section 42
Has a pen tray 49 provided with a transparent lid 50 that can be opened and closed.

The learning board 39 shown in FIG.
The accommodating portions 42, 42 are provided on both sides or one side of the binder 41.
Can be fitted, and the binder 41 can be held in the upright state in the housing portion 42. Here, the binder 41 has a shape in which a clip 48 is provided on an upper portion of a board 47 having an extra portion on a side portion.
The lower portions on both sides of the housing 1 can be fitted into slit grooves 52 formed on the back surface of a pen stand 51 serving as a housing portion 42.

The learning board 39 shown in FIG.
On the upper surface of the main body 40, a plurality of holding pieces 53,... Capable of aligning and holding FDs, MDs, music CDs, CD-ROMs, DVDs, DVD-ROMs, MOs, etc. in a case in an upright state are arranged at equal intervals. Are formed along the rear of the holding piece 53 and between the holding pieces 53,..., And the lower end of the binder 41 is engaged with the engaging groove 54 so as to stand up. It can be held. Further, the lower surface of the pen stand 55 is formed as a raised bottom structure as the accommodating portion 42, and the pen is attached to the upper surface side portion of the main body 40 in a state in which the predetermined number of holding pieces 53,. A stand 55 is erected, and a curtain plate 56 extending upward behind the pen stand 55 is arranged substantially flush with the binder 41.

The learning board 39 shown in FIG.
The holding pieces 53,... Similar to the above are erected on one side of the main body 40, and the pen tray section 57 as the accommodation section 42 is integrally formed on the other side. An engaging groove 58 is formed along the rear edge, and the lower end of the binder 41 is engaged with the engaging groove 58 so that the binder 41 can be held upright.

The components of the learning board 39 described above are
One learning board can be assembled with each other, or can be disassembled and used independently.

[0031]

The system desk shelf of the learning desk according to the present invention as described above has the following remarkable effects.

According to the first aspect of the present invention, in a state where the bookstand is mounted on the desk shelf main body, no unnecessary function is provided for using the bookstand as a part of the bookcase, and the bookstand is separated from the desk shelf body. When used independently on a desk top plate, the support members attached to the desk shelf body can be replaced with the main body to stably support the original books in the main body. Not only the form can be realized, but also the cost can be reduced and the appearance can be improved at the same time.

According to the second aspect, the supporting member can be manufactured at a low cost, and the work of attaching and replacing the supporting member to the main body or the desk shelf body is extremely simple.

According to the third aspect, the mounting strength of the support member is high, the book can be stably supported, and the mounting plate can be stably provided, even though the mounting and replacement of the support member to the book are easy. The upper book accommodation space can be used to the maximum.

According to the fourth aspect, the mounting strength of the support member is high, and the book is stable together with the small partition plate of the upper shelf, although the mounting and replacement of the support member on the desk shelf body are easy. Can be supported.

According to the fifth aspect, in the case where the book is separated from the main body of the desk and used independently and placed on the top plate of the learning desk, the drawer pull-out operation and the push-in operation can be performed smoothly. it can.

[Brief description of the drawings]

FIG. 1 is a front view showing a typical use form of a system desk shelf of a learning desk according to the present invention.

FIG. 2 is a perspective view of a main part in the same manner.

FIG. 3 is an exploded perspective view of a main part showing a mounting structure of a bookstand and a shelf board to a desk shelf body.

FIG. 4 is a rear perspective view showing a structure for attaching a lighting fixture to a lower shelf.

FIG. 5 is an exploded perspective view showing a state where a support member is mounted on the main stand.

FIG. 6 is a partial perspective view showing a mode in which the hondori are independently mounted on a top plate of a learning desk for use.

FIG. 7 is a partial perspective view showing a structure in which a lighting device is directly attached to a desk top plate.

FIG. 8 is a partial perspective view showing another example of use of the book according to the present invention.

9A and 9B show a first example of the learning board, wherein FIG. 9A is a perspective view in an assembled state, and FIG. 9B is a perspective view in an exploded state.

10A and 10B show a second example of the learning board, in which FIG. 10A is a perspective view in an assembled state, and FIG. 10B is a perspective view in an exploded state.

11A and 11B show a third example of the learning board, wherein FIG. 11A is a perspective view in an assembled state, and FIG. 11B is a perspective view in an exploded state.

FIGS. 12A and 12B show a fourth example of the learning board, wherein FIG. 12A is a perspective view in an assembled state, and FIG. 12B is a perspective view in an exploded state.

[Explanation of symbols]

 Reference Signs List A System desk shelf 1 Desk shelf body 2 Stand 3 Learning desk 4 Top plate 5 Lower shelf 6 Upper shelf 7 Shelf 8 Support member 8A Backing rod 8B Side abutment 9 Stopper 10 Side plate 10A Right side plate 10B Left side plate 11 Back plate 12 Partition plate 13 Side plate 14 Fixed shelf plate 15 Curtain plate 16 Back plate 17 Small partition plate 18 Blind plate 19 Lighting device 20 Supporting device 21 Placement plate 22 Small partition member 23 Leg plate 24 Drawer 25 Lock hole 26 Mounting hole 27 Support Groove 28 Support Groove 29 Fixing Screw 30 Screw Hole 31 Support Hole 32 Depression 33 Support Hole 34 Depression 35 Mounting Screw 36 Mounting Bracket 37 Clamp 38 Backing Plate 39 Learning Board 40 Main Body 41 Binder 42 Housing E Electronic Equipment

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Atsushi Nitta 1-4-1-12, Imafukuhigashi, Joto-ku, Osaka F-term in Itoki Crebio Co., Ltd. 3B053 SA02 SA05

Claims (5)

[Claims] 1. A method of mounting a bookstand in the interior space of a desk shelf main body and placing the bookstand on a rear portion of a tabletop of a learning desk, or separating the bookstand from the tabletop shelf body and mounting the bookstand on a tabletop plate. A bookcase which is provided with one or a plurality of small partition members on the upper surface of a mounting plate, and which is located on the back or the back and both sides of the book. A system desk shelf for a learning desk, characterized in that a support member capable of supporting the table is selectively and removably attached to appropriate positions of the bookstand and the desk shelf body. 2. The support member has a side contact rod extending forward and downward from both ends of a linear back contact rod, and the end of the side contact rod is provided at an appropriate position on the main stand and the desk shelf main body. The system desk shelf of a learning desk according to claim 1, further comprising a concave portion for engaging and supporting a support hole in which the portion is fitted and an intermediate portion of the back support rod. 3. A support hole for receiving an end of a side contact rod of the support member is formed at a front part on both sides of the mounting plate of the book, and a back contact rod is provided on a rear side or an upper side of the small partition member. The system desk shelf of the learning desk according to claim 2, further comprising a concave portion for engaging and supporting an intermediate portion of the learning desk. 4. The apparatus according to claim 1, wherein the support member is detachably attachable to an upper shelf constituting a desk shelf main body, and a single or a plurality of small partition plates erected on the upper surface in front of a fixed shelf plate of the upper shelf. A supporting hole is formed at a position between the supporting member and the end of the side contact rod, and a concave portion is provided on the upper surface of the small partition plate for engaging and supporting an intermediate portion of the back contact rod. Item 2. A system desk shelf of the learning desk according to Item 2. 5. The erection according to claim 1, wherein one or more drawers are provided between leg plates provided on both sides of the placing plate, and the leg plates are set to protrude below a lower end of the drawer. 3. The system desk shelf of the learning desk according to any one of 3.