JP2009172306A - Shelf board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shelf board capable of making a shelf board auxiliary member effectively function when a shelf board body is used in the vertical state, and capable of effectively utilizing the shelf board auxiliary member as an adjuster with a depth effective enough to mount a displayed merchandise on the shelf board when the shelf board body is used in the horizontal state. <P>SOLUTION: The shelf board is composed of the shelf board body 17 and the shelf board auxiliary member 18. The shelf board also has an engagement part 19 to be opened downward at the lower end of the shelf board body in the vertical use state in which the shelf board body is vertically inclined. The shelf board auxiliary member is formed approximately in the upward U-shape as seen from a side, and a locking part 27 is disposed between front and rear erected pieces 25 and 26 in the upward U-shape. By locking the locking part with the engagement part of the shelf board body, the shelf board body can function as a back receiving material for the displayed merchandise A and the shelf board auxiliary member can function as a bottom receiving material with a function of preventing the display merchandise from falling. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a shelf board used in a shelf device for supporting display merchandise such as books in an inclined state.

  In the conventional shelf device, in order to change and adjust the inclination angle of the shelf body between the left and right side plates, the shelf body is attached so that the rear end thereof can rotate as a fulcrum, and the back support of the display product In order to prevent the display products from slipping down when the shelf body is in a vertical orientation with the shelf body tilted vertically so that it becomes a material, the shelf board auxiliary member is almost seen from the side of the front end of the shelf body. There are some which are provided in a forward L-shape and this shelf board auxiliary member is used as a bottom receiving material for a display product (for example, see Patent Document 1).

However, in the above-described Patent Document 1, when the shelf board is used in a substantially horizontal horizontal state, the shelf board auxiliary member attached to the front end of the shelf board body is in the way, so the shelf body and the shelf It is necessary to use the shelf auxiliary member as a rear end stopper of the displayed product, or to remove the shelf auxiliary member by turning the plate auxiliary member backward and forward.
Also, when changing the depth length of the shelf board body in order to display the displayed products in a pre-aligned state when the shelf board is in landscape use, the depth adjustment member can be adjusted according to the depth width of the displayed product. There was a problem that it was necessary to prepare each separately.
JP-A-11-206526

  In view of the present situation, the present invention can effectively function the shelf auxiliary member when the shelf body is used in the vertically oriented state, and also when the shelf body is used in the landscape state, It is an object of the present invention to provide a shelf board that can be effectively used as an effective depth width adjusting member that can place a display product on the shelf board.

As described in each claim in “Claims”, the above-described problem is solved by the invention having the following configuration.
(1) A shelf board installed between side plates erected on the left and right, comprising a shelf board body and a shelf board auxiliary member, when the shelf board body is in a vertically used state in which the shelf board body is inclined vertically. An engaging portion that opens downward is provided at the lower end of the shelf main body, and the shelf auxiliary member is formed in a substantially upward U shape when viewed from the side, and is locked between the front and rear standing pieces in the upward U shape. By providing this portion and locking the engaging portion to the engaging portion of the shelf main body, the shelf main body serves as a back receiving material for the display product, and the shelf auxiliary member has a function of preventing the display product from being dropped. So that it can function as a bottom receiving material.

(2) In the above item (1), the shelf body can be used even in a substantially horizontal sideways use state, and the engaging portion of the shelf board body is set to the rear end in the sideways use state. The stopper piece is engaged with the engaging portion, the stopper piece is erected on the rear end of the shelf body, and the shelf-side auxiliary member that is substantially U-shaped when viewed from the side is Abutting against the stopper piece, it is placed on the shelf board body so that the shelf board auxiliary member can function as a depth adjusting material for the shelf board.

(3) In the above item (2), the upward and downward U-shaped shelf board auxiliary members have different lengths in the front-rear direction and the vertical direction, and the placement state of the shelf board auxiliary member on the shelf body is upward The depth of the shelf board can be adjusted by appropriately selecting from a U-shape and a backward U-shape.

(4) In the above-mentioned item (2) or (3), when the shelf main body is in the horizontal use state, left and right support grooves that open downward are provided in the front and rear portions of the lower surface of the shelf main body, By locking the attached front and rear receivers in the front and rear support grooves, the shelf body can be supported in the horizontal use state, and when the shelf body is in the vertical use state, The upper end of the rear upright piece of the shelf-shaped shelf auxiliary member is bent forward, and this bent piece can be locked in the lower support groove on the back surface of the shelf main body.

(5) In any one of the above items (1) to (4), the bracket to be attached to the side plates erected on the left and right sides is substantially fan-shaped in a side view in which the front end and the lower end are substantially linear and the rear is arcuate. In addition, the straight front end is used as a shelf holder, and a downward concave groove that opens downward is provided at the fan-shaped main position, and at the same time, the rear arc-shaped portion is opened outward at a predetermined interval. A plurality of outwardly facing grooves, provided with substantially equal height receiving parts on the front and rear sides of the opposing inner side surfaces of the left and right side plates, and the downwardly facing grooves provided at the essential positions of the fan-shaped brackets on the front The shelf main body can be supported in the vertically used state by engaging a plurality of outwardly recessed grooves provided in the rear arcuate portion on the receiver and the rear receiver.

(6) In the above item (5), after the bracket is engaged with any of the outwardly-facing concave grooves selected on the rear receiver, the bracket is turned around the rear receiver to turn the downward concave groove forward. Be able to be attached to the clasp.

(7) In the above item (5) or (6), the front end portion of the bracket is bent inward in the left-right direction, and this bent portion is used as a shelf receiving surface. At least a part of the end is bent forward to form a locking portion, and the locking portion is locked to a locked portion provided on the shelf plate, thereby fixing the shelf plate to the bracket.

According to the present invention, the following effects can be achieved.
According to the first aspect of the present invention, the engaging portion that opens downward is provided at the lower end of the shelf body when the shelf body is inclined in the longitudinal direction. The shelf body is used as the back receiving material of the display product by locking the latching portion of the shelf board auxiliary member provided between the front and rear standing pieces in a substantially upward U shape in the side view, and the shelf board auxiliary member is Since it can function as a bottom receiving material with a function of preventing a display product from being dropped, the shelf board auxiliary member can function effectively when the shelf board body is used in a vertically oriented state.
In addition, by making it possible to separate the shelf main body and the shelf auxiliary member, preparing a plurality of shelf auxiliary members having different depth lengths in the front-rear direction, the shelf auxiliary member appropriately selected from these, By combining with the shelf main body, the depth length in the front-rear direction of the shelf can be easily adjusted according to the thickness of the displayed product.
Furthermore, even when the shelf board body is used in the horizontal direction, the shelf board auxiliary member can be effectively used as an adjustment material having an effective depth width on which the display product can be placed on the shelf board.

  According to the second aspect of the present invention, the shelf body can be used in a substantially horizontal sideways use state, and the engaging portion of the shelf board body is formed at the rear end in the sideways use state. A stopper piece is engaged with the engaging portion, the stopper piece is erected on the rear end of the shelf body, and the shelf-auxiliary member having a substantially U-shape in the side view is disposed on the stopper. Since it is placed on the shelf board body in contact with the piece, and the shelf board auxiliary member can function as a depth adjustment material for the shelf board, the shelf board can be used even when the shelf board body is used in the sideways state. The board auxiliary member can be effectively used as an adjustment material having an effective depth width on which the display product can be placed on the shelf board.

  According to the third aspect of the present invention, the length of the auxiliary U-shaped shelf board auxiliary member in the front-rear direction and the vertical direction is different, and the placement state of the shelf auxiliary member on the shelf main body is changed upward. The depth of the shelf can be adjusted by appropriately selecting from the two of the letter shape and the backward U-shape, so the shelf length can be adjusted according to the depth width of the displayed product using the shelf auxiliary member. Can be done easily and easily.

  According to the fourth aspect of the present invention, when the shelf board body is used in the horizontal orientation, the front and rear receptacles are provided with left and right support grooves that open downward on the front and rear portions of the bottom surface of the shelf board body and are attached to the left and right side plates. By locking the support members such as the front and rear support grooves, the shelf body can be supported in the horizontal use state, and when the shelf board body is in the vertical use state, the upward U-shaped The upper end of the rear stand piece of the shelf board auxiliary member is bent forward, and the bent piece can be locked in the lower support groove on the back surface of the shelf board body, so that the shelf board auxiliary member is stably attached to the shelf board body. be able to.

  According to the fifth aspect of the present invention, the bracket attached to the side plates erected on the left and right sides is substantially straight in the front end portion and the lower end portion, and has a substantially fan shape in the side view in which the rear side has an arc shape. And a plurality of outwardly recessed grooves opened outward at a predetermined interval in the arcuate portion at the same time. Provided with approximately equal height receivers on the front and back of the opposing inner side surfaces of the left and right side plates, the downward concave groove provided at the fan-shaped essential position in the bracket on the front receiver, and the rear circle Since the shelf body can be supported in a vertically used state by engaging a plurality of outwardly recessed grooves provided in the arcuate portion with the rear support, respectively, the outward recess attached to the rear support Depending on the selection of the groove, the inclination angle of the shelf It is possible to easily change adjustment, it can be widely selected a tilt angle of the shelves, thereby, cover show can enhance the functionality of the shelf.

  According to the invention described in claim 6, after the bracket is engaged with one of the selected outward concave grooves on the rear receiving member, the bracket is turned around the rear receiving member to turn the downward concave groove into the front portion. Since the bracket can be attached to the receiving member, the assembling work and the angle adjustment of the shelf board can be efficiently performed by the operation from the front side of the shelf apparatus with the bracket attached to the shelf board.

  According to the invention of claim 7, the front end portion of the bracket is bent inward in the left-right direction, and the bent portion is used as a shelf receiving surface, and at least a part of the free end of the bent portion is provided. Bending forward to form a locking portion, and locking the locking portion to a locked portion provided on the shelf plate, the shelf plate is fixed to the bracket, so the bracket and the shelf plate And the shelf board can be stably attached to the bracket.

Next, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view schematically showing the overall configuration of a shelf device according to an embodiment of the present invention, FIG. 2 is an enlarged longitudinal sectional view showing a main part of the shelf device in the shelf device, and FIG. FIG. 4 is an enlarged perspective view of a shelf board auxiliary member provided at the lower end of the shelf board, as viewed from the rear of the shelf apparatus.

  As shown in FIGS. 1 and 2, the shelf device 1 of the present invention includes a pair of left and right side plates 3 and 3 erected on a gantry 2, and inner side surfaces 3 a facing each other on the left and right side plates 3 and 3. A shelf plate 4 assembled in between, and a pair of left and right brackets 5 that support the left and right ends of the shelf plate 4 from the back side and are attached to the inner side surfaces 3a of the left and right side plates 3 and 3, respectively. ing.

  The inner side surface 3a of each side plate 3 is formed with two rows of front and rear horizontal rectangular locking holes 6 and 7 with a predetermined interval in the vertical direction, and is equal to each other according to the height of the shelf plate 4. The front locking hole 6 and the rear locking hole 7 selected at the high position are provided with a substantially cylindrical dowel-shaped front receiving tool 8 and rear receiving tool 9 detachably, respectively. .

A bracket 5 is engaged between the front and rear receiving tools 8 and 9 at the contour position.
As shown in FIG. 3, the bracket 5 is formed by a substantially fan-shaped substrate 10 in a side view. The front end portion 10 a and the lower end portion 10 b are substantially linear, and the rear portion 10 c is arcuate. At the same time, the straight front end 10a is used as a shelf holder.

A downward groove 11 that opens downward is provided at the front end of the lower end portion 10b, which is the essential position of the sector shape on the substrate 10, and at the same time, a radial direction from the center O of the downward groove 11 to the rear arc-shaped portion 10c. A plurality of outwardly recessed grooves 12 that open outward are provided radially with a predetermined angular interval θ.
The downward groove 11 can be engaged with the front receiving member 8, and each outwardly recessed groove 12 can be engaged with the rear receiving member 9.
That is, after the bracket 5 is engaged with any of the selected outwardly recessed grooves 12 to the rear receiver 9, the bracket 5 is rotated about the rear receiver 9, thereby turning the downwardly recessed grooves 11 into the front receiver. 8 can be engaged.

The front end portion 10 a of the substrate 10 is bent inward in the left-right direction, and the front surface of the bent portion 13 is used as a shelf receiving surface, and a rivet insertion hole 14 is formed in the lower portion of the bent portion 13. Has been.
The free end 13a of the bent portion 13 is bent forward to form a locking portion 15, and a locking claw 16 is provided at the upper end of the locking portion 15 so as to protrude upward. ing.

  As shown in FIGS. 2 and 3, the shelf board 4 is separably locked to the shelf board body 17 extending in the left-right direction inclined in the vertical direction and the lower end of the shelf board body 17 by an aluminum extruded material. In combination with a substantially auxiliary U-shaped shelf board auxiliary member 18 in the side view, it is formed so as to have a substantially forward L shape in the side view.

The shelf main body 17 serves as a rear receiving material for the display product A displayed on the shelf board 4 and is open to the left and right directions and downward at the lower end portion of the shelf main body 17 when used vertically. A joint groove 19 is formed.
The engaging groove 19 extends in the left-right direction, and the central part is opened downward with the front and rear edges of the lower end edge surface of the shelf board body 17 open, and the width in the front-rear direction is wider than the opening. ing.
The front and rear facing surfaces of the engagement groove 19 are partitioned by a pair of left and right protrusions 20 and 21 that face each other, and the first engagement groove 19a and the second engagement groove are sequentially formed from below to above. 19b is formed.

  A pair of left and right slits 22 that are locked portions are provided in the upper portion of the back surface of the shelf main body 17, and the slits 22 are directed upward at the upper ends of the locking portions 15 in the bracket 5. A locking claw 16 provided in a protruding manner is inserted and locked.

  A rivet 23 is inserted into a rivet insertion hole 14 formed in the lower portion of the bent portion 13 of the substrate 10 in the bracket 5, and the rivet 23 is inserted into a rivet hole 24 provided at the lower back of the shelf body 17. Thus, the shelf board body 17 forming the shelf board 4 is fixed to the bracket 5 by riveting.

As shown in FIGS. 3 and 4, the shelf board auxiliary member 18 is used as a bottom receiving material of the display product A, and a retaining piece 25 that forms a front standing piece is erected on the front edge, and the rear edge. The connecting piece 26 with the shelf main body 17 forming the rear standing piece is formed in a substantially upward U shape in a side view.
A locking protrusion protruding in an upward T-shape that can be locked in the engaging groove 19 at the lower end of the shelf main body 17 between the stop piece 25 and the connecting piece 26 at both front and rear edges in the upward U-shape. 27 is provided.

A plurality of shelf auxiliary members 18 are prepared so that the longitudinal length W ₁ between the front and rear locking pieces 25 and the connecting pieces 26 in the upward U-shape is different, By selecting one according to the thickness T of the display product A and allowing it to be coupled to the lower end of the shelf main body 17, the depth length of the shelf 4 in the front-rear direction can be adjusted. ing.

The stopper piece 25 erected on the front edge of the upward U-shape has a function of preventing the display product A from falling from the shelf board 4 and is provided above and below the connecting piece 26 erected on the rear edge. The length W ₂ in the direction is smaller than the depth length W ₁ in the front-rear direction between the locking piece 25 and the connecting piece 26.
That is, as will be described later, the shelf board auxiliary member 18 is placed in an upward U-shape or a backward U-shape at the rear end of the shelf board body 17 when the shelf board body 17 is used in a sideways state. Thus, the depth length W in the front-rear direction between the stopper piece 25 and the connecting piece 26 is adjusted so that the depth length in the front-rear direction for placing the display product A on the shelf body 17 can be adjusted. ₁ and the length W _{2 of} the connecting piece 26 in the vertical direction are different from each other.

The back surface of the shelf main body 17 is provided with two upper and lower rows of support grooves 28 and 29 extending in the left-right direction. These support grooves 28 and 29 are connected to the front and rear locking holes 6 and 7 on the inner surface 3 a of the side plate 3. The shelf main body 17 is disposed in a substantially horizontal state between the left and right side plates 3 by supporting the front and rear supports 8 and 9 provided at the same height positions in the so-called sideways state. It can be used.
On the other hand, as described above, when the shelf main body 17 is used in the vertical orientation by the left and right brackets 5 and 5, the upper end of the connecting piece 26 in the shelf auxiliary member 18 having an upward U-shape is bent forward. The bent piece 30 can be locked in the lower support groove 29.

Next, the assembly procedure of the shelf device 1 will be described.
First, as shown in FIG. 2, the depth length W ₁ in the front-rear direction of the shelf board auxiliary member 18 is determined according to the thickness T of the display product A.
An engagement protrusion formed between the front and rear locking pieces 25 and the connecting piece 26 by selecting the shelf auxiliary member 18 having the depth length W ₁ and sliding it from the left and right directions with respect to the shelf main body 17. 27 is engaged with the engagement groove 19 formed at the lower end of the shelf main body 17, and at the same time, the bent piece 30 formed at the upper end of the rear standing piece 26 in the shelf auxiliary member 18 is The lower support groove 29 on the back is engaged.
Thereby, the shelf board auxiliary member 18 is assembled | attached to the lower end part of the shelf board main body 17 which forms the back surface receiving material of the shelf board 4, and the shelf board 4 is formed.

  Next, the locking claws 16 of the substrate 10 in the bracket 5 are inserted and locked in the slits 22 drilled on the left and right of the back surface of the shelf body 17, and the rivets drilled in the lower portion of the bent portion 13 in the substrate 10. The rivets 23 are inserted into the insertion holes 14, and the rivets 23 are inserted into rivet holes 24 provided at the lower back of the shelf main body 17 to be riveted to fix the brackets 5 to the left and right rear surfaces of the shelf 4. To do.

  Next, the front and rear receivers 8 and 9 are fixed to the front and rear engaging holes 6 and 7 at the desired contour positions provided on the inner side surface 3 a of the left and right side plates 3.

  Next, the shelf plate 4 is disposed between the left and right side plates 3. First, the desired shelf plate 4 is selected from among the plurality of outwardly recessed grooves 12 formed in the arcuate portion 10 c behind the substrate 10 in the left and right brackets 5. Any one of the outward grooves 12 matching the inclination angle α is selected, and the selected outward grooves 12 are engaged with the rear receiving member 9.

  Next, the bracket 5 is rotated so that the downward concave groove 11 of the substrate 10 is engaged with the front receiving member 8, whereby the shelf board 4 is installed between the left and right side boards 3 at a desired inclination angle α. The plate 4 can be used in a vertically oriented state.

FIG. 5 is an enlarged vertical cross-sectional view of a main part showing a case where the shelf board 4 is used in a horizontal state.
In the present embodiment, the shelf main body in the state in which the shelf 4 is in the lateral direction on the front and rear receivers 8 and 9 respectively provided in the front and rear locking holes 6 and 7 at the desired heights in the left and right side plates 3. By supporting the support grooves 28 and 29 located on the lower surface of the rack 17, the shelf board body 17 is installed on the side plate 3 in a substantially horizontal and horizontal state.
When the shelf main body 17 is in the horizontal use state, the engagement groove 19 of the shelf main body 17 located at the lower end in the vertical use state is positioned at the rear end, and the rear end of the shelf main body 17 A stopper piece 31 for locking the rear end of the display product A in the front-rear direction is disposed, and a locking portion 32 provided on the stopper piece 31 is engaged with the engaging groove 19 to be engaged. Thus, the stopper piece 31 can be erected on the rear end of the shelf body 17.

On the other hand, as described in the embodiment when the shelf main body 17 described above is used in the vertical orientation, the shelf auxiliary member 18 that is substantially U-shaped in a side view in the vertical usage state is the shelf main body. when using 17 as sideways state, on the shelf plate main body 17, as shown, it is placed in the rearward U-shape as connecting pieces 26 in the longitudinal length W ₂ is positioned, By bringing the bent piece 30 as the rear end into contact with the stopper piece 31, the effective depth length D on which the display product A can be placed on the shelf main body 17 becomes the depth length D ₁ . The shelf board auxiliary member 18 can be effectively used as a depth adjusting material for the shelf board 4.

  FIG. 6 is an enlarged vertical cross-sectional view of a main part showing another mode when the shelf board 4 is used in a horizontal state.

The shelf board main body 18 is placed on the shelf board body 17 in an upside-down U-shape on the shelf board body 17 and brought into contact with the stopper piece 31 serving as the trailing end of the stopper piece 25. In order to provide the same shelf board auxiliary member 18 with a depth different from that shown in FIG. 5 so that the effective depth length D on which the display product A can be placed on 17 is the depth length D ₂ . It can be effectively used as an adjustment material.

1 is a perspective view schematically showing an overall configuration of a shelf device in an embodiment of the present invention. It is a principal part expanded vertical sectional view which shows the attachment state of the shelf board in a shelf apparatus. It is the principal part disassembled perspective view which looked at the assembly | attachment state of the shelf board by the bracket to a side board from the back of the shelf apparatus. It is an expansion perspective view of the shelf board auxiliary member provided in the lower end part of a shelf board. It is a principal part expanded vertical sectional view which shows the case where a shelf board is used as a state of horizontal orientation. It is a principal part expanded longitudinal cross-sectional view which shows the other aspect in the case of using a shelf board as a state of horizontal orientation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shelf device 2 Base 3 Side board 3a Inner side surface 4 Shelf board 5 Bracket 6 Front part locking hole 7 Rear part locking hole 8 Front part receiving part 9 Rear part receiving part 10 Substrate 10a Front end part 10b Lower end part 10c Arc-shaped part 11 Downward concave Groove 12 outward concave groove 13 bent portion 13a free end 14 rivet insertion hole 15 locking portion 16 locking claw 17 shelf board body 18 shelf board auxiliary member 19 engagement groove (engaging portion)
19a 1st engagement groove 19b 2nd engagement groove 20 Front protrusion 21 Rear protrusion 22 Slit 23 Rivet 24 Rivet hole 25 Front standing piece (stop piece)
26 Rear standing piece (connecting piece)
The effective depth length D ₁ Shelf auxiliary member capable of mounting the display item to 27 locking projection 28 the upper support grooves 29 lower support grooves 30 bent piece 31 stopper piece 32 locking portion A display items D Shelf on the body Effective depth length D that allows display products to be placed on the shelf main body when used. ₂ Effective depth length T that enables display products to be placed on the shelf main body when the shelf auxiliary member is used. Display product thickness O Center of downward groove W ₁ Depth length W between front and rear vertical pieces W ₂ Vertical length of rear vertical piece α Shelf inclination angle θ Angle interval of outward grooves

Claims (7)

A shelf laid between side plates standing on the left and right,
The shelf board is composed of a shelf board body and a shelf board auxiliary member, and is provided with an engaging portion that opens downward at the lower end of the shelf board body when the shelf board body is inclined in the longitudinal direction. The auxiliary member is formed in a substantially U shape when viewed from the side, a locking portion is provided between the front and rear standing pieces of the upward U shape, and the locking portion is engaged with the engaging portion of the shelf body. A shelf board characterized in that the shelf board main body can be used as a back receiving material for display merchandise and the shelf board auxiliary member can function as a bottom receiving material with a function of stopping the display merchandise by stopping.   The shelf board body can be used even in a substantially horizontal sideways use state, and in this sideways use state, the engaging part of the shelf board body is positioned at the rear end, A stopper piece is engaged, the stopper piece is erected on the rear end of the shelf body, and a shelf-plate auxiliary member that is substantially U-shaped in a side view is brought into contact with the stopper piece and the shelf body. The shelf board according to claim 1, wherein the shelf board is placed on the shelf board so that the shelf board auxiliary member can function as a depth adjusting material of the shelf board.   The length in the front-rear direction and the vertical direction of the upward U-shaped shelf board auxiliary member is different, and the placement state of the shelf auxiliary member on the shelf main body is 2 in the upward U shape and the backward U shape. The shelf board of Claim 2 which enabled the depth adjustment of the shelf board by selecting suitably from a person.   When the shelf main body is in the horizontal orientation, the front and rear portions of the bottom surface of the shelf main body are provided with left and right support grooves that open downward, and the front and rear support members attached to the left and right side plates are engaged with the front and rear support grooves. By stopping, it is possible to support the shelf body in the horizontal use state, and when the shelf board body is in the vertical use state, the upper end of the rear vertical piece of the upward U-shaped shelf board auxiliary member is moved forward. The shelf board according to claim 2 or 3, wherein the shelf board is bent and the bent piece can be locked to a lower support groove on a back surface of the shelf board body.   The bracket attached to the side plates erected on the left and right, the front end portion and the lower end portion are substantially straight, the rear is arc-shaped in a side view substantially fan-shaped, the straight front end is a shelf holding portion, and At the same time, a downward groove that opens downward is provided at the essential position of the sector, and at the same time, a plurality of outward grooves that are open outwardly spaced apart by a predetermined interval are provided in the rear arc-shaped portion. A substantially equal height receiver is provided on the front and rear portions of the opposing inner surface, and a downward concave groove provided at a fan-shaped essential position in the bracket is provided in the front receiver and a plurality of outer portions provided in the rear arc-shaped portion. The shelf board in any one of Claims 1-4 which enabled the shelf board main body to be supported in a vertical use state by each attaching a direction ditch | groove to a rear receptacle.   After the bracket is engaged with one of the selected outwardly recessed grooves on the rear support, the downwardly recessed groove can be engaged with the front receiver by rotating the rear receiver as a fulcrum. The shelf board according to claim 5.   The front end portion of the bracket is bent inward in the left-right direction, and the bent portion is used as a shelf receiving surface, and at least a part of the free end of the bent portion is bent forward to be a locking portion. The shelf board according to claim 5 or 6, wherein the shelf board is fixed to the bracket by locking the latching part to a latched part provided on the shelf board.

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