JP4765603B2 - Study desk desk shelf - Google Patents

Description

  The present invention relates to a desk shelf of a learning desk, and more particularly to a desk shelf of a learning desk that can be rearranged with a book stand or a shelf board.

  2. Description of the Related Art Conventionally, a desk shelf for a learning desk capable of rearranging a book stand and a shelf board has been provided. For example, Patent Document 1 discloses a desk shelf in which a bookcase and a shelf board are detachably mounted in an internal space formed by both side boards and a back board, and placed on the back of the top of a learning desk, A partition plate is fixed at the center of both side plates, and supports can be detachably attached to the inner side of both side plates facing the inside space and both sides of the partition plate, respectively, and the bookcase and shelf plate Is substantially the same in width and can be supported by the same support tool, and detachably supports both side portions of the book stand by one of the side plates and a support tool attached to the lower stage of the partition plate facing the side plate, A desk shelf of a learning desk, wherein both sides of the shelf board are detachably supported by a support member attached to the other side plate and a lower stage of the partition plate facing the other side board, and the book stand and the shelf board can be rearranged left and right. It is disclosed.

  Moreover, in patent document 2, in the desk which attached the shelf apparatus provided with the left and right main side board, the shelf board, and the back board on the desk top board so that attachment or detachment was possible, it arrange | positions in the front surface of the back board in the said shelf apparatus. A plurality of separation book stands are detachably connected to at least the back plate via engagement means, and an intermediate shelf is provided between the side plates of the separation book stand or between the side plates of the separation book stand and the inner surface of the main side plate. A desk having a shelf device that is detachably mounted is disclosed.

In these publications, the mounting position of the bookcase and the shelf board (intermediate shelf board) can be changed in the horizontal direction, and the installation height of the shelf board (intermediate shelf board) can be changed. The mounting height could not be changed. In such a desk shelf, the size of books such as books, notebooks, and files stored in a bookcase or a shelf board is A6 (A row 6 is the same in the following), B6 (B row 6 is the same in the following), There are many types such as A5, B5, A4, and B4, and various storage forms such as placing them sideways are possible, and there are even cases such as CD and DVD cases. In order to accommodate these articles efficiently, it is necessary to optimize the vertical height of the accommodation space, but conventional desk shelves did not have such a function that allows such fine height adjustment.
Japanese Patent No. 3577955 JP 2005-052296 A

  Therefore, in view of the above-described situation, the present invention intends to solve the problem of freely changing the mounting height of the bookshelf or shelf according to the accommodation form in the desk shelf of the learning desk where the bookstand or shelf can be rearranged. It is possible to provide a desk shelf for a learning desk that can maximize the accommodation efficiency of books, notebooks, files, and other books and CD and DVD cases.

In order to solve the above-described problems, the present invention provides a desktop shelf that has a bookcase and a shelf detachably mounted in an internal space formed by both side plates and a back plate, and is placed on the back of the top of the learning desk. The back plate is provided with a plurality of first support means consisting of horizontally long slit holes for detachably locking the locking means provided on the back of the book stand at regular intervals, on the inner surface of the side plate, The second support means for mounting the support for removably supporting the edge of the shelf board is provided in multiple stages at regular intervals, and the edge of the shelf board can be attached to and detached from the outer surface of the both side plates of the main frame. The third support means for mounting the support tool to be supported is provided in multiple stages at regular intervals, the vertical pitches for providing the first support means, the second support means, and the third support means are all matched, and the shelf board Supported between the side plate and the side plate of the book stand or between the side plates of the book stand on both sides The height of the upper surface of the shelf board is set to be slightly lower than the lower edge of any one of the slit holes, and any one of the slit holes and a horizontally long opening formed on the back of the book stand. A desk shelf of a learning desk that is set so as to substantially match the front and rear is constructed (claim 1).

Here, the first support means has a plurality of slit holes arranged in the same height position , and the locking means of the main stand is a hook that is locked to the slit hole. It is preferable that the mounting position can be changed in the left-right direction (claim 2).

  The second support means and the third support means are a pair of support holes arranged side by side at the same height, the support is a wire dowel, and both end support shafts of the wire dowel are attached to and detached from both support holes. It is preferable that the main body portion of the wire dowel is engaged with an engaging groove that is formed on the end face of the shelf plate and is open to the rear side.

Then, the first support means, the vertical pitch of providing a second supporting means and the third supporting means, and is more preferably formed by setting a constant value in the range of 95～100Mm (claim 4).

The desk shelf of the learning desk according to the first aspect of the present invention comprises the vertical pitch in the height setting of the book stand to be mounted in the internal space formed by the both side plates and the back plate, the side plate and the side plate of the book stand. The vertical pitch in the setting of the height of the shelf mounted between the opposite side plates of the installed book stand with a space between or on both sides is matched, so the mounting height of the book stand and shelf can be freely adjusted according to the accommodation form Thus, it is possible to maximize the accommodation efficiency of books such as books, notebooks, files, etc., and CD and DVD cases. Also, no matter how the bookcase and shelf are mounted on the desk shelf, the slit hole opened in the back plate is located near the upper surface of the shelf, and substantially coincides with the horizontally long opening on the back of the bookcase, In addition to being excellent in appearance, the cords can be wired through the slit hole so as to pass through the back plate of the desktop shelf, for example, the power cord of the electric pencil sharpener placed on the shelf Can be wired from the slit hole behind it to the back of the back plate.

  According to claim 2, since the mounting position in the lateral direction of the bookcase can be changed, the mounting position of the shelf board mounted between the side plate of the desk shelf and the side plate of the bookcase can be changed accordingly, It is also possible to mount multiple bookcases on the back plate of a desktop shelf, in which case the shelf plates can be attached between the opposite side plates of the installed bookcase with a gap, and the horizontal direction of the bookcase and shelf plates The degree of freedom in arrangement increases, and the mounting height of the main frame and the shelf can be freely set.

  According to the third aspect of the present invention, a pair of front and rear support holes formed in multiple stages on the inner surface of the side plate of the desk shelf and the outer surface of the side plate of the main stand are selected to have the same height, and the support for the wire dowels is inserted into the support hole. The shaft is detachably inserted and attached, and the main body of the wire dowel is engaged and held in the engaging grooves formed on both end faces of the shelf, so the attachment position of the shelf can be changed by changing the wire dowel. It can be changed easily.

According to the fourth aspect , when A6, B6, A5, B5, A4, and B4 books such as books, notebooks, files, etc. and CD and DVD cases are stored vertically and horizontally, they are stored. The mounting height of the book stand and the shelf board can be set so as to be optimal for the form.

  Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. 1 and 2 show a desk shelf of a learning desk according to the present invention, FIG. 3 shows a main part of the present invention, FIGS. 4 to 11 show a first embodiment, and FIGS. 12 to 16 show a second embodiment. In the figure, reference numeral 1 denotes a desk shelf, 2 denotes a learning desk, 3 denotes a side plate, 4 denotes a back plate, 5 denotes a main stand, and 6 denotes a shelf plate.

  The desk shelf 1 according to the present invention is used by being placed on the rear part of the top board of the learning desk 2, and the bookcase 5 and the shelf board are formed in the internal space formed by the side plates 3, 3 and the back plate 4. 6 is detachably mounted, and the mounting position of the bookcase 5 and the shelf board 6 can be changed, particularly the mounting height is changed.

  More specifically, the desktop shelf 1 may be any structure as long as it has a side plate 3 and 3 and a back plate 4 between its rear ends, and the lower shelf 1A and the upper shelf 1B as in this embodiment. The upper shelf 1B can be placed and connected to the upper part of the lower shelf 1A, and the upper shelf 1B can be removed and used only by the lower shelf 1A. In this embodiment, only the lower shelf 1A is targeted, but is not particularly limited. Moreover, in this embodiment, as shown in FIG.3, FIG.4, FIG.6-9, the said book stand 5 connects the mounting plate 8 to the lower part of the both-sides surface plates 7 and 7, and the back plate 9 in the rear part. , And a drawer 10 is provided between the side plates 7 and 7 below the mounting plate 8, and a partition plate 11 is erected on the upper intermediate portion of the mounting plate 8. In the invention, as long as it has a portion corresponding to the side plate 7 to which the shelf plate 6 can be connected, only the drawer 10 or a structure in which only the partition plate 11 is erected on the mounting plate 8 can be used. I do not care.

  As shown in FIG. 3, the present invention is a first comprising a hole or a rail for detachably locking the locking means 12 provided on the back of the bookcase 5 to the back plate 4 of the desk shelf 1. Are provided in multiple stages at regular intervals (pitch H), and second support means 15 for attaching a support 14 for detachably supporting the edge of the shelf 6 to the inner surface of the side plate 3; Are provided in multiple stages at regular intervals (pitch H), and a third support is provided on the outer surfaces of the side plates 7 and 7 of the bookcase 5 with support members 14 that removably support the edges of the shelf 6. .. Are provided in multiple stages at regular intervals (pitch H), and the upper and lower pitches at which the first support means 13, the second support means 15, and the third support means 16 are all made to coincide with each other.

  Specifically, the first support means 13 is a horizontally long slit hole (hereinafter, denoted by reference numeral 13), and a plurality of slit holes 13,... The locking means 12 is a hook (hereinafter denoted by reference numeral 12) that locks into the slit hole 13, and the mounting position of the bookcase 5 can be changed in the left-right direction. In the first embodiment, as shown in FIGS. 4 and 5, the slit hole 13 is formed with a long slit hole 13A at the center and short slit holes 13B and 13B on both sides thereof, and has the same height. Are formed with three slit holes 13,. The long slit hole 13A has approximately twice the length of the short slit hole 13B, and the short slit hole 13B has the hook 12 of the narrow bookcase 5 as shown in FIGS. Is locked. 18 can be mounted in a state where one side plate 7 of the book stand 5 is in contact with the side plate 3 of the desk shelf 1, and a narrow book stand with a narrow width toward one side as shown in FIG. If the 5 hooks 12 are locked, they can be mounted in close contact with a similar bookcase 5 mounted on the outside thereof. Here, the horizontal width of the hook 12 is slightly narrower than the horizontal width of the slit hole 13B, and the shelf board 6 and other book stands 5 are present on the side of the book stand 5 with the hook 12 locked to the slit hole 13B. Even if not, it is set so as not to move greatly in the horizontal direction. The hook 12 may be divided into left and right, but it is sufficient that the outer dimensions of both ends of the hook 12 as a whole substantially match the lateral width of the slit hole 13B.

  Moreover, as shown in FIG. 3, the said 2nd support means 15 and the 3rd support means 16 are a pair of support holes (henceforth each shown by the codes | symbols 15 and 16) arranged in parallel at the same height position, The support 14 is a wire dowel (hereinafter represented by reference numeral 14), and both end support shafts 14A, 14A of the wire dowel 14 are detachably fitted into both the support holes 15, 15 or the support holes 16, 16, By engaging the main body portion 14B of the wire dowel 14 with the engagement groove 17 formed in the end face of the shelf plate 6 and facing backward, both ends of the shelf plate 6 are supported. In the present invention, a pin dowel may be used instead of the wire dowel 14, and the second support means 15, the third support means 16 and the support tool 14 may have other structures.

  In the present embodiment, the distance between the side plates 3 and 3 of the desktop shelf 1 is made substantially equal to the sum of the widths of the two narrow bookcases 5 and 5 and the width of the shelf 6. Therefore, with respect to the horizontal arrangement in the storage space of the desk shelf 1, the bookcases 5 and 5 are mounted on both sides so as to be in close contact with the side plates 3, and the opposite side plates 7 of the bookcases 5 and 5 are opposed to each other. , 7 (see FIGS. 1, 4 and 17) and the two bookshelves 5, 5 in close contact with one side plate 3, It is possible to realize a mode (see FIGS. 2 and 18) in which the shelf plate is mounted between the side plate 7 of the inner bookcase 5 and the other side plate 3 facing each other.

  Furthermore, as shown in FIG. 4, the shelf 6 is supported between one side plate 3 and the side plate 7 of the bookcase 5 or between the side plates 7 and 7 of the bookcases 5 and 5 on both sides. The height of the upper surface of the shelf plate 6 is set to be slightly lower than the lower edge of the slit hole 13, and any one of the slit holes 13 and the horizontally long opening 18 formed on the back surface of the bookcase 5 The slit hole 13 always exists behind the upper surface of the mounting plate 8 and the shelf plate 6 regardless of the manner in which the bookcase 5 and the shelf plate 6 are mounted. It can be used as an insertion hole for wiring cords. Also, by setting such an arrangement, when viewed from the front, the slit holes 13,... Have substantially the same vertical width in the exposed portion, so that design uniformity is maintained and the overall appearance is maintained. It contributes to the improvement.

  Here, as shown in FIGS. 6 to 9, the bookcase 5 is connected to a curtain plate 19 between lower rear ends of the side plates 7, 7, and the upper edge of the curtain plate 19 is connected to the mounting plate 8. The above-mentioned horizontally long opening 18 is formed between the upper edge of the curtain plate 19 and the lower edge of the back plate 9. Then, a wide hook 12 formed by bending a metal plate into a substantially U-shaped cross section is attached to the upper back of the curtain plate 19, and the hook 12 is inserted into a predetermined slit hole 13 from the front. The book 5 is mounted at a predetermined height while being locked to the edge. Here, the support strength of the book stand 5 is sufficient even with the hook 12 alone, but it can be easily detached from the back plate 4 if the book stand 5 is lifted. In order to restrict the movement, as shown in FIGS. 4 to 6, a hat-shaped fixture 20 is inserted from the rear of the lower slit hole 13, and the upper and lower edges of the fixture 20 are placed on the upper and lower edges of the slit hole 13. In a state where the pieces are in contact with each other, screws are removably attached to the lower part of the back surface of the curtain plate 19 of the book 5 from the rear.

  As described above, in the present invention, the bookshelves 5, 5 and the shelf board 6 are connected to the desktop shelf by using the first support means 13, the second support means 15, and the third support means 16 formed at the same pitch in the upper and lower stages. In the accommodation space formed by the both side plates 3 and 3 and the back plate 4, each is mounted at a desired height. For this purpose, first, the positions of the two bookshelves 5 and 5 in the left-right direction are determined, then the respective mounting heights are determined, and the corresponding first support means 13 (slit hole 13) is provided with a locking means 12 ( The hook 12) is locked. In this state, the main stand 5 can move in the left-right direction along the slit hole 13. Accordingly, the main stand 5 is moved so that a space for mounting the shelf plate 6 can be secured, and then the second support means 15 (support holes 15, 15) and third support means 16 (support holes 16, 15) having a predetermined height are moved. 16) is selected, the support 14 (wire dowel 14) is attached, and finally the shelf board 6 is inserted from the front, and the main body of the wire dowel 14 corresponding to the engaging grooves 17 and 17 on both end faces respectively. The part 14B is received and supported. In the present embodiment, the first support means 13 and the second support means 15 are provided in four stages in the vertical direction, and the third support means 16 is provided in three stages in the vertical direction. In the present embodiment, since the lowermost first support means 13 cannot lock the locking means 12 of the bookcase 5, there are three selectable mounting heights for the bookcase 5, while the shelf The mounting height of the plate 6 that can be selected is three depending on the number of the third support means 16, but the height of the main stand 5 can be changed, so that the maximum number of the second support means 15 is four. Here, when the bookcase 5 is mounted at the lowest position, the lowermost third support means 16 and the lowermost second support means 15 have the same height.

  Thus, the desktop shelf 1 attached to the learning desk 2 has A6 (105 mm × 148 mm), B6 (128 mm × 182 mm), A5 (148 mm × 210 mm), B5 (182 mm × 257 mm), A4 (210 mm × 297 mm). , B4 (257 mm × 364 mm) books, notebooks, files, etc., CD and DVD cases (124 mm × 142 mm), MD cases, etc. may be accommodated vertically and horizontally. The accommodation form may be placed on the placement plate 8 of the bookcase 5, placed on the shelf 6, or placed directly on the top plate of the learning desk 2. It is desirable to be applicable to the form. Thus, in consideration of the size of books and the like, in the present invention, the vertical pitch H at which the first support means 13, the second support means 15 and the third support means 16 are provided is in the range of 95 to 100 mm. It is set to a constant value. Actually, the pitch H is set to 98 mm.

  Here, based on FIGS. 4-6, the whole structure of the said desktop shelf 1 is demonstrated a little in detail. The upper shelf 1B connects the fixed shelf 22 between the side plates 21 and 21, and connects the back plate 23 between the rear ends, and the upper surface of the fixed shelf 22 and the back plate 23 at the left and right central portions. The both side plates 21 and 21 are placed on the upper ends of the side plates 3 and 3 of the lower shelf 1A and are connected and integrated by appropriate connecting means. Here, in the lower shelf 1A, the back position of the back plate 4 is set slightly forward from the rear ends of the side plates 3 and 3, and the lower end of the back plates 4 and 3 A reinforcing member 4A is provided between them to increase the strength, and at the upper part, angle brackets 4B,... Are fixed between the rear end portions of the back plate 4 and the inner rear end portions of the side plates 3 for reinforcement. ing. An opening 25 is formed between the back plate 4 of the lower shelf 1A and the back plate 23 of the upper shelf 1B, and the column 27 of the lighting device 26 is attached to the back surface of the back plate 4 of the lower shelf 1A in an upright state. The arm 28 extending forward from the upper end of the column 27 is caused to appear forward from the opening 25, and the left and right central portions of the lamp 29 are supported at the tip of the arm 28.

  Further, the back plate 23 of the upper shelf 1B is separated into an upper back plate 23A and a lower back plate 23B, and the upper edge of the lower back plate 23B is located slightly above the upper surface of the fixed shelf plate 22, In the upper back plate 23A, slit holes 30 and 30 having the same vertical width as the slit hole 13 are formed on both sides of the fixed partition plate 24, and between the upper back plate 23A and the lower back plate 23B. Is provided with a horizontally long opening 31. And in the said upper shelf 1B, the small shelf board 32 is attached between the side board 21 and the fixed shelf board 22 so that height adjustment is possible using the said wire dowel. Also in this case, the slit hole 30 is positioned slightly above the upper surface of the small shelf board 32, and the wiring cord of the printer P placed on the small shelf board 32 is connected to the slit hole 30 as shown in FIG. Can be wired through. Here, the shelf board 6 and the small shelf board 32 may be the same, and the shelf board 6 removed from the lower shelf 1A may be attached to the upper shelf 1B. When the shelf plate 6 is attached to the uppermost position of the lower shelf 1A, a 15-inch liquid crystal monitor M can be placed below the shelf plate 6 (see FIG. 2).

  In this embodiment, the partition plate 11 can be detachably attached to the book stand 5 at any position in the left-right direction. The partition plate 33 having the same shape as the partition plate 11 is attached to the lower shelf. It can be attached to the back plate 4 using the upper and lower slit holes 13 of 1A, and can also be attached using the slit hole 30 and the horizontally long opening 31 of the upper shelf 1B. For this purpose, a common engaging tool 34 as shown in FIGS. 10 and 11 is used. The anchoring tool 34 is a synthetic resin molded product, and has an attachment portion 35 attached to the rear end face of the partition plate 11 or the partition plate 33, and a locking portion 36 formed above the attachment portion 35, and at the lower portion. A stop portion 37 is formed. The locking portion 36 of the anchoring tool 34 has a downward hook that can be locked from above to the upper edge of the back plate 9 of the bookcase 5 or the lower edge of the slit hole 13 formed in the back plate 4 of the lower shelf 1A. 36A is formed, and an upward hook 36B that can be locked from below is formed on the upper edge of the slit hole 30 of the upper shelf 1B above the downward hook 36A. Further, the retaining portion 37 of the engaging tool 34 has an upper surface of a lower edge of the back plate 9 of the book stand 5, an upper edge of the slit hole 13 below the back plate 4, and a horizontally long opening 31 of the upper shelf 1B. A contact surface 37A that contacts the upper edge from below is formed, and a shallow engagement portion 37B extending in the lateral direction is formed on the lower surface.

  And in order to attach the said partition plate 11 to the back plate 9 of the main stand 5, in the state which pushed down the partition plate 11 slightly back in the state which fastened the engaging tool 34 to the rear end of this partition plate 11, After the downward hook 36A provided on the locking portion 36 of the anchoring tool 34 is locked to the upper edge of the back plate 9 from the front side, the lower portion of the partition plate 11 is pushed rearward, whereby the locking portion 37 is pressed. Is positioned below the back plate 9 and its abutment surface 37A is abutted against the lower edge of the back plate 9 to prevent the partition plate 11 from coming off (see FIGS. 6 and 11 (b)). . In this state, the lower edge of the partition plate 11 is placed on the upper surface of the mounting plate 8 described above. Next, as shown in FIG. 4, in order to attach the partition plate 33 to the back plate 4 in the space below the shelf plate 6 mounted at the third level, the partition plate 33 is slightly rearward as described above. The hook 36A is inserted into the second-stage slit hole 13 from the front side and locked to the lower edge, and the lower part of the partition plate 33 is pushed backward. The stopper portion 37 is inserted into the first-stage slit hole 13, and the contact surface 37A is disposed so as to face the upper edge of the slit hole 13. At this time, if an elastic body is attached to the abutting surface 37A, the elastic body is always pressed against the lower edge of the back plate 9 and the upper edge of the slit hole 13, so that the partition plate 11, 33 can be supported. On the other hand, in order to attach the partition plate 33 to the upper shelf 1B, with the partition plate 33 tilted, the upward hooks 36B provided in the locking portions 36 of the engaging tool 34 are provided in the slit holes 30 provided in the back plate 23. While being locked to the upper edge, the partition plate 33 is raised and the stopper 37 is inserted into the horizontally long opening 31, and the contact surface 37 A is positioned below the upper edge of the horizontally long opening 31. The lower edge of the partition plate 33 is placed on and supported by the upper surface of the fixed shelf plate 22.

  Next, a second embodiment of the present invention will be described based on FIGS. In the present embodiment, the two slit holes 13, 13 constituting the first support means 13 are formed symmetrically on the left and right of the back plate 4 of the lower shelf 1 </ b> A, and about half the distance between the side plates 3, 3. In this structure, a wide bookcase 5 having a lateral width and a shelf plate 6 having a similar lateral width are arranged on the left and right. Further, the upper shelf 1 </ b> B is provided with the upper edge of the upper back plate 23 </ b> A in a straight line without providing the slit hole 30, and the vertical width of the upper back plate 23 </ b> A matches the vertical width of the back plate 9 of the bookcase 5. Is. Accordingly, the hook 38B for attaching the partition plate 33 does not require the upward hook 36B, and therefore has a simple shape in which only the downward hook 36A is formed on the locking portion 36. 12 and 13 show an example in which the hat-shaped fixing bracket 20 similar to the above is used for attachment, but FIGS. 15 and 16 show the hook 12 below the hook 12 instead of the fixing bracket 20. An example is shown in which downward hooks 39, 39 that engage with the lower slit hole 13 are provided on both sides. Here, the horizontal width of the hook 12 of the present embodiment is slightly narrower than the horizontal width of the slit hole 13, and the shelf plate 6 does not exist on the side of the bookcase 5 with the hook 12 locked to the slit hole 13. Even in this case, it is set not to move greatly in the horizontal direction. The hook 12 may be divided into left and right parts, but it is sufficient that the outer dimensions of both ends of the hook 12 as a whole substantially coincide with the lateral width of the slit hole 13. Since other structures are the same as those described above, the same components are denoted by the same reference numerals, and description thereof is omitted.

  Finally, an arrangement example for accommodating books of various sizes will be briefly described based on FIGS. 17 and 18 of the first embodiment. FIG. 17 shows a state in which the lower shelf 1A has bookcases 5 and 5 arranged on both sides and a shelf plate 6 arranged in the middle, both of the bookcases 5 and 5 having the same height and two steps from the bottom. It is set to the eyes so that the CD case can be stored vertically, and the shelf 6 is attached to the third level from the bottom, and the B6 books can be stored vertically below the shelf 6 A4 books can be accommodated above 6. In addition, since the height of the mounting plate 8 and the shelf plate 6 of the bookcase 5 is the same, the bookcase 5 can also accommodate A4 books. Further, in the upper shelf 1B, the small shelf 32 is attached to the upper stage, and the CD case can be accommodated on the fixed shelf 22 below.

  FIG. 18 shows an aspect in which two book stands 5 and 5 are arranged close to the right side, and a shelf board 6 is arranged between the side plate 3 and the side plate 7 of the book stand 5 on the left side. This is an example in which the second stage from the bottom is installed, the left bookcase 5 is installed in the third stage from the bottom, and the shelf board 6 is installed in the uppermost stage (fourth stage). In this case, a CD case can be accommodated under the right bookcase 5, and A4 books can be accommodated above the placement plate 8. In addition, A5 books can be accommodated under the left bookcase 5, and A5 books can be accommodated above the placement plate 8. Further, a 15-inch liquid crystal monitor M can be placed below the shelf board 6, and A6 or B6 documents can be accommodated above it.

It is a whole perspective view of the use condition of the desk shelf of the learning desk concerning the present invention. It is the whole perspective view of only a desk shelf. It is a partial disassembled perspective view of the principal part of this invention. It is a front view of the desk shelf of a 1st embodiment of the present invention. It is a rear view of a desk shelf. It is the longitudinal cross-sectional view of a desk shelf similarly. It is a perspective view of a narrow bookcase. It is also a front view of a book stand. It is a standing sectional view of the same book stand. It is a perspective view of the engaging tool for attaching a partition plate. Similarly, the anchoring tool is shown, (a) is a front view, and (b) is a cross-sectional view. It is a front view of the desktop shelf of 2nd Embodiment. It is the longitudinal cross-sectional view of a desk shelf similarly. It is a perspective view of a wide bookcase. It is also a front view of a book stand. It is a longitudinal cross-sectional view similarly. It is a front view which shows the example of arrangement | positioning of the bookshelf and shelf board of the desk shelf of 1st Embodiment. It is a front view which similarly shows the other example of arrangement | positioning.

DESCRIPTION OF SYMBOLS 1 Desk shelf 1A Lower shelf 1B Upper shelf 2 Learning desk 3 Side plate 4 Back plate 5 Standing 6 Shelf plate 7 Side plate 8 Placement plate 9 Back plate 11 Partition plate 12 Locking means (hook) 13 First support means (slit hole) )
13, 13A, 13B Slit hole 14 Support tool (wire dowel) 14A Support shaft 14B Body portion 15 Second support means (support hole)
16 Third support means (support hole) 17 Engagement groove 18 Horizontally long opening 19 Curtain plate 20 Fixing bracket 21 Side plate 22 Fixed shelf plate 23 Back plate 23A Upper back plate 23B Lower back plate 24 Fixed partition plate 25 Opening 26 Illumination device 27 Post 28 Arm 29 Lamp 30 Slit hole 31 Horizontal opening 32 Shelf plate 33 Partition plate 34 Engagement tool 35 Mounting portion 36 Locking portion 36A Downward hook 36B Upward hook 37 Stopping portion 37A Contact surface 37B Engagement portion 38 Engagement tool 39 Downward hook P Printer M 15 inch LCD monitor

Claims (4)

A desk shelf that is detachably mounted with a book stand and a shelf board in an internal space formed by both side plates and a back board, and is placed on the back of the top board of the learning desk, the back board and the back of the book stand First support means comprising horizontally long slit holes for detachably locking the locking means provided on the base plate are provided in multiple stages at regular intervals, and the edge of the shelf board is detachably supported on the inner surface of the side plate. Second support means for mounting the support tool is provided in multiple stages at regular intervals, and third support means for mounting a support tool for removably supporting the edge of the shelf on the outer surface of the both side plates of the main stand. Provided in multiple stages at regular intervals, all the vertical pitches for providing the first support means, the second support means and the third support means are made to coincide with each other, and the shelf plate is placed between one side plate and the side plate of the main stand or on the main stand on both sides. One of the slit holes is supported between the side plates. With the height of the upper surface of the shelf plate is set to be slightly lower than the edge, a horizontally long opening formed with any one of the slit on the back of the Hontate is set so as to substantially coincide with the front and rear A desk shelf for a learning desk. The first support means includes a plurality of slit holes arranged at the same height position , and the locking means of the main stand is a hook that is locked to the slit hole. The desk shelf of a learning desk according to claim 1, which can be changed in the left-right direction.   The second support means and the third support means are a pair of support holes arranged in parallel at the same height position, the support tool is a wire dowel, and both end support shafts of the wire dowel can be attached to and detached from both support holes. The desk shelf of a learning desk according to claim 1 or 2, wherein the main body portion of the wire dowel is engaged with a rearward opening engaging groove formed on an end surface of the shelf board. The desk shelf of a learning desk according to any one of claims 1 to 3 , wherein an upper and lower pitch at which the first support means, the second support means, and the third support means are set to a constant value in a range of 95 to 100 mm.

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