JP5964761B2 - Simple assembly shelf - Google Patents

Description

  The present invention relates to a simple assembling shelf capable of easily assembling a shelf having a structure convenient for transportation and storage when displaying goods in a store or the like.

  Conventionally, when displaying merchandise at a store or the like, in addition to displaying the product on a shelf provided in the store, a relatively light product may be displayed on a small shelf composed of cardboard or the like. Such a cardboard shelf is highly convenient because products can be displayed by transporting them to the site in a flatly developed shape and assembling them on the site.

  Here, as a conventional technique, a “suspended display paper container” described in Patent Document 1 is referred to. This paper container has a shelf structure in which a blank board manufactured by punching a paperboard material is folded and assembled. In this shelf structure, the back plate formed integrally with the front plate is bent along a folding line and turned behind the front plate, and the locking piece provided on the back plate is inserted into the notch in the shelf. By passing, a plurality of shelves are formed in the vertical direction.

Japanese Patent No. 4447088

  However, in the conventional shelf structure described in Patent Document 1, a certain level of skill and labor are required to assemble the unfolded paper container on site. For this reason, it is difficult for a person unfamiliar with the assembling work to assemble easily and quickly on site.

  Accordingly, there is a demand for a simple assembly structure that enables even a person with no particular skill to assemble quickly with a simple operation. In addition, a shelf structure that can be folded into a flat shape is desired in consideration of the space during transportation and storage.

  The present invention has been made in view of the above circumstances, and can be folded into a flat shape when transported or stored, and can be quickly assembled by a simple operation during assembly. An object is to provide a simple assembly shelf.

In order to achieve such an object, the present invention is grasped by the following configuration.
(1) The simple assembly shelf of the present invention is connected to the back member and the left and right ends of the back member via folding lines, and can be bent from a developed shape opened along the back member to a use shape facing each other. A side member and a front surface of the back member that can be tilted forward through a folding line, and when the side member is in a developed shape, the side member can be folded along the front surface of the back member. A shelf member that is forwardly tilted from the front surface of the back member and locked between the opposing surfaces of the left and right side members, and the shelf member has a bottom surface on which an article is placed. When the side member is bent into a use shape and the shelf member is tilted forward, the inner side surface of the side member slides in accordance with the movement of the side member. While facing the bottom And the inner side surface has an engaging portion that engages with an edge portion of the side portion rising piece and bends the side portion rising piece in a normal direction. It is characterized by that.

  According to this configuration, at the time of transportation and storage, the left and right side members can be opened in an unfolded shape, and the shelf member can be folded along the front surface of the back member, so that the entire simple assembly shelf can be folded into a flat shape. it can. Accordingly, the simple assembly shelf is not bulky during transportation and storage, and the simple assembly shelf can be stored in a narrow space. On the other hand, when assembling, a simple assembly shelf can be assembled simply by bending the left and right side members from the developed shape to the use shape, and tilting the shelf members forward and engaging between the opposing surfaces of the left and right side members. . For this reason, a simple assembly shelf can be quickly assembled by a simple operation.

  And in this invention, when an engaging part is provided in the inner surface of a side member, and a side part standing piece slides on the inner surface of a side member, an engaging part is engaged with the edge of a side part standing piece. Fold the side stand up piece in the normal direction.

  On the other hand, without providing the engaging portion in the side member, the side rising piece is raised with respect to the bottom surface by simply sliding the side rising piece with respect to the inner surface of the side member. Is also possible. However, in this case, depending on the warp generated in the side member or the side stand-up piece and the rigidity of the side member or the side stand-up piece, the side stand-up piece does not bend in the normal direction, and the shelf member is normal. There is a possibility that it cannot be formed into a form.

  In this regard, in the present invention, the side rising piece is bent in the normal direction by the engaging portion provided in the side member. As a result, the shelf member can be formed in a normal form, and the simple assembly shelf can be assembled more easily.

(2) In the simple assembly shelf of the present invention, in the configuration of (1), the engagement portion is a score line provided on the inner surface.

  According to this structure, an engaging part can be easily set to a side member by the cut line provided in the inner surface of a shelf member.

(3) In the simple assembly shelf of the present invention, in the configuration of (2), the cut line is formed in a shape along the edge in a state where the shelf member is folded along the front surface of the back member. It is characterized by being.

  According to this configuration, in the state where the shelf member is folded along the front surface of the back member, the cut line is formed in a shape along the edge, so the left and right side members are folded from the developed shape to the use shape and the shelf In the process of tilting the member forward, the engaging portion and the edge can be quickly and reliably engaged.

(4) In the simple assembly shelf of the present invention, in any one of the constitutions (1) to (3), the edge portion is formed in a shape that inclines toward the bottom surface as it goes to the rear end side of the shelf member. It is characterized by that.

  According to this configuration, as the edge of the side stand-up piece inclines toward the bottom side as going to the rear end side of the shelf member, the side member bent into the use shape, the edge of the side stand-up piece, Can be prevented from coming into strong contact, and the edge can be smoothly slid relative to the side member. Thereby, a side part standup piece can be bend | folded favorably.

(5) In the simple assembly shelf of the present invention, in any of the configurations of (2) to (4), the edge and the cut line are each formed by a curve, a straight line, or a combination thereof. It is characterized by.

  According to this configuration, by forming the edge and the cut line by a curve, a straight line, or a combination thereof, various shapes of the edge and the cut line can be obtained according to the required function.

  According to the present invention, it is possible to provide a simple assembly shelf that can be folded into a flat shape when transported or stored, and that can be quickly assembled by a simple operation during assembly.

It is a perspective view of the simple assembly shelf of this invention. FIG. 2 is a rear view of the simple assembly shelf, as viewed from the direction of arrow A in FIG. 1. It is an expanded view of a back member and a side member on either side. It is the expanded view which attached the left and right side members to the back member. It is a perspective view of the side member and back member which were bend | folded to the use shape. (A) And (b) is the BB sectional drawing of FIG. 4, (c) And (d) is CC sectional drawing of FIG. 4, (a) and (c) are expansion | deployment shape. (B) and (d) show the shapes used. It is an expanded view of a shelf member. (A) is a figure explaining the procedure which assembles a shelf member, (b) is a perspective view of the assembled shelf member. It is a figure explaining the method of attaching a shelf member to a back member. It is a figure explaining the method of folding a simple assembly shelf in a flat shape. It is a top view of the simple assembly shelf folded by the flat shape. It is a figure explaining the method of assembling a simple assembly shelf, (a) is an effect explanatory view of the 2nd cut line, (b) is a principal part enlarged view in the E section of (a), (c) is a side stand It is operation | movement explanatory drawing of an upper piece and a locking piece. (A) is a figure explaining the shape of a rear edge part and a 2nd cut line, (b)-(e) is a figure explaining the modification of (a). It is a figure explaining the other modification of a 2nd score line.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described in detail with reference to the accompanying drawings. The same number is attached | subjected to the same element through the whole description of embodiment. The drawings are viewed in the direction of the reference numerals. In the embodiment, “left”, “right”, “upper”, and “lower” respectively indicate directions when facing the simple assembly shelf. Further, “front” indicates the front side when facing the simple assembly shelf, and “rear” indicates the back side when facing the simple assembly shelf.

(Overall configuration of simple assembly shelf 1)
First, the whole structure of the simple assembly shelf 1 is demonstrated based on FIG. 1, FIG.
FIG. 1 is a perspective view of the simple assembly shelf 1 after assembly. FIG. 2 is a rear view of the simple assembly shelf 1 as viewed from the direction of arrow A in FIG.

  As shown in FIGS. 1 and 2, the simple assembly shelf 1 is a shelf structure having a vertically long rectangular parallelepiped shape, and is made of various paper materials including cardboard. The simplified assembly shelf 1 includes a back member 2, left and right side members 3 connected to the back member 2 so as to be foldable forward via longitudinal folding lines 6a and 6b, and a predetermined interval in the vertical direction. And a plurality of (two in this example) shelf members 7 attached to the back member 2 along the horizontal direction. The “folding curve” in the present invention includes a so-called ruled line, a cut line formed continuously or intermittently, and the like.

(Configuration of back member 2 and side member 3)
Next, the configuration of the back member 2 and the side member 3 will be described with reference to FIGS.
As shown in FIG. 3, the left and right side members 3 are formed symmetrically with each other. Each side member 3 is formed in a vertically long rectangular shape, and a narrow width portion 8 is set at the center position of the side surface member 3 in the left-right direction. Folding curves 4a and 4b are provided. The side member 3 is constituted by an outer side surface 9 and an inner side surface 10 that face each other by bending the folding lines 4a and 4b.

  Further, two left and right folding lines 5a and 5b and two folding lines 6a and 6b are provided at the left and right ends of the side member 3, respectively. Among these, a plurality of (at least two in this example) cutout holes 11 are provided between the folding lines 5a and 5b provided in the outer end portion 9a of the outer surface 9 with a predetermined interval in the vertical direction.

  The plurality of cutout holes 11 are arranged according to the height of the shelf member 7 (see FIG. 7), and have a function of allowing a protruding locking piece 26 (see FIG. 7) described later to enter and exit.

  The inner side surface 10 of the side member 3 is provided with a horizontal cut line 12 and an arc-shaped cut line 13 arranged in the vertical direction, and the horizontal cut line 12 and the arc-shaped cut line 13 form an arc. The shape cut surface 14 is formed. A plurality (two in this example) of the arcuate cut surfaces 14 are formed at predetermined intervals along the vertical direction. Further, in the vicinity of the outer end portion 10 a of the inner side surface 10, there are folding curves (hereinafter referred to as “outer folding curves 6 a”) passing through the respective base ends of the horizontal cut line 12 and the arc-shaped cut line 13. A fold curve (hereinafter referred to as “inner fold curve 6b”) located inside the outer fold curve 6a is provided at the base end of each arcuate cut surface 14.

  The arcuate cut surface 14 has a movable piece 31. The movable piece 31 can be bent at the inner folding line 6b. The first cutting line 32 extends forward from the inner folding line 6b, and the inner folding line 31 extends rearward and downward from the front end of the first cutting line 32. It is comprised by the 2nd cut line 33 which reaches the curve 6b. The second cut line 33 corresponds to an “engagement portion” in the present invention, and a detailed configuration will be described later.

  Furthermore, an inclined side 15 is provided in the upper front part of the side member 3. The inclined side 15 is provided above the folding lines 4 a and 4 b of the width portion 8.

  When the side member 3 described above is assembled, the outer side surface 9 and the inner side surface 10 are bent at the center folding lines 4a and 4b, and the outer end portion 9a of the outer side surface 9 and the outer end portion 10a of the inner side surface 10 are And are fixed by adhesive means B (indicated by the hatched portion in the figure). Further, after the inclined bent piece 10c is bent along the bending curve 10e, the inclined side 15 is formed by bonding with the bonding means B. Further, the upper end bent piece 10 b provided at the upper end of the inner side surface 10 is bent along the folding line 10 d and bonded to the upper end of the outer side surface 9 by the bonding means B. The bonding means B can be selected from various means such as a double-sided adhesive and an adhesive, and the type is arbitrary.

  On the other hand, the back member 2 is formed in a vertically long rectangular shape. The back member 2 has a plurality of (two in this example) score lines 16 extending along the horizontal direction with a predetermined interval in the vertical direction. Is provided. An insertion piece 22 (see FIG. 7) of the shelf member 7 to be described later is inserted into each cut line 16.

  In addition, a plurality of (three in this example) recesses 17a are provided at both left and right ends of the back member 2 at predetermined intervals in the vertical direction. Each concave portion 17 a is formed in a concave shape that fits the outer folding line 6 a of the side member 3, and is recessed with respect to the outer side 17 b of the back member 2 with a width that is approximately the same as the thickness of the width portion 8 of the side member 3.

  Furthermore, a folded portion 2 a is provided at the upper end of the back member 2. In the back member 2, the folded portion 2 a is folded at a folding line 2 b, overlapped on the upper rear surface of the back member 2, and fixed by the adhesive means B so as to reinforce the upper portion of the back member 2 and obtain a good appearance. ing.

  When attaching the side member 3 to the back member 2 described above, the end portions (more specifically, the outer end portion 9a) of the assembled side member 3 are bonded to the left and right ends of the rear surface of the back member 2, respectively. Thus, the left and right side members 3 are respectively attached (see FIG. 4).

  As shown in FIG. 5, the attached left and right side members 3 can be bent vertically forward with respect to the back member 2 by an outer folding line 6 a and an inner folding line 6 b. As shown in FIG. 6, the unfolded shape (see FIGS. 6 (a) and 6 (c)) opened along the back member 2 is folded into a use shape (see FIGS. 6 (b) and 6 (d)) facing each other. In the side member 3 thus formed, the arc-shaped cut surface 14 is pushed into the inner side of the outer surface 9 due to the difference in the formation positions of the outer folding line 6a and the inner folding curve 6b, and the inner side of the horizontal cutting line 12 A gap 18 is formed.

(Configuration of shelf member 7)
Then, the structure of the shelf member 7 is demonstrated based on FIG. 7, FIG.
As shown in FIG. 7, the shelf member 7 has a rectangular upper surface 19 on which an article 34 (see FIG. 1) is placed, and a rectangular shape that is connected to the upper bottom surface 19 via a folding line 21 and fits the upper bottom surface 19. And a lower bottom surface 20. The upper bottom surface 19 and the lower bottom surface 20 are bonded by the bonding means B. In the vicinity of the folding line 21 on the lower bottom surface 20, an insertion piece 22 is formed by a cut line 22a. The insertion piece 22 is connected to the upper bottom surface 19 through a folding line 22b, and is inserted into the cut line 16 (see FIG. 5) and attached to the back member 2 (see FIG. 5) by the bonding means B. . Thereby, the shelf member 7 is connected to the front surface of the back member 2 (see FIG. 5) via the folding line 22b so as to be able to tilt forward.

  A front rising piece 23 is provided at the front end of the upper bottom surface 19 via a folding line 19b. Further, a reinforcing piece 35 is provided at the front end of the front rising piece 23 via a folding line 35a. The front rising piece 23 is folded in half along the folding line 23a so that the reinforcing piece 35 is bent along the folding line 35a and the folded reinforcing piece 35 is sandwiched between the front rising pieces 23.

  Further, side upright pieces 24 that can be bent upward are connected to the left and right ends of the upper bottom surface 19 via a folding line 19a. Each of the left and right side upright pieces 24 has an arcuate cut surface in accordance with the movement of the side member 3 when the side member 3 (see FIG. 5) is bent into a use shape and the shelf member 7 is tilted forward. 14 (see FIG. 5) is slid with respect to the upper bottom surface 19.

  The rear edge portion 36 of the side upright piece 24 is a portion corresponding to the “edge portion” in the present invention. The rear edge 36 is formed in a shape that inclines toward the upper bottom surface 19 as it goes to the rear end side (folding curve 22 b side) of the shelf member 7. In this example, the trailing edge 36 is formed by a curve 41 having a relatively small radius of curvature and a straight line 42.

  Moreover, the connection piece 24b is provided in the front end of each side part standing piece 24 via the folding line 24a which inclines with respect to the folding line 19a. The connecting piece 24b is bent by a folding line 24a and is sandwiched between front rising pieces 23 that are folded in half.

  Furthermore, a locking piece 25 that can be bent downward is connected to the left and right ends of the lower bottom surface 20 via a folding line 20a. At the rear end of the locking piece 25, a protruding locking piece 26 protruding backward is provided.

  When assembling the shelf member 7 described above from the flat shape shown in FIG. 8 (a) to the use shape shown in FIG. 8 (b), the side upright pieces 24 at the left and right ends are folded on the folding line 19a. The front rising piece 23 is bent along the folding line 23a and started up. Further, the locking piece 25 is bent downward at the folding line 20 a, thereby causing the locking piece 25 to protrude downward at the left and right ends of the shelf member 7.

(Assembly method of shelf member 7 and folding method of simple assembly shelf 1)
Next, a method for assembling the shelf member 7 and a method for folding the simple assembly shelf 1 will be described with reference to FIGS.

  As shown in FIG. 9, the protruding locking piece 26 is inserted into the cutout hole 11 (see FIG. 2) while the locking piece 25 of the shelf member 7 is inserted inside the horizontal cut line 12 of the side member 3. At the same time, the insertion piece 22 is inserted into the cut line 16 and bent, and adhered to the rear surface of the back member 2 to assemble the shelf member 7. This assembling work is also performed on the other shelf members 7. Thereby, as shown in FIG. 10, the simple assembly shelf 1 by which the some shelf member 7 was assembled | attached is completed.

  In addition, although the shelf structure which has the two-stage shelf member 7 was shown in this example, the number of the shelf members 7 may be one piece or three or more, and is arbitrary. Further, in order to fix the width of the left and right side members 3 after assembly, the bending fixing portions 27a (see FIG. 1) at the left and right ends of the width fixing member 27 (see FIG. 1) are side-faced with a double-sided adhesive or the like. You may fix to the member 3, and it can hold | maintain, without destroying the shape after the assembly of the simple assembly shelf 1 in this case.

  On the other hand, when folding the simplified assembly shelf 1, the left and right side members 3 are opened rearward from the folding lines 6 a and 6 b, and the shelf members 7 are moved along the back member 2 from the folding line 22 b. Bend upward. At this time, while pulling the locking piece 25 (see FIG. 9) of the shelf member 7 from the inside of the horizontal cut line 12 (see FIG. 9), the front rising piece 23 and the side with the folding lines 19a and 19b as a base point. The part rising piece 24 and the locking piece 25 (see FIG. 9) are bent along the upper bottom surface 19 and the lower bottom surface 20.

  As a result, as shown in FIG. 11, it is possible to obtain a simple assembly shelf 1 in which the left and right side members 3 are in a developed shape and the shelf member 7 is folded flat.

  In the present embodiment, in the simple assembly shelf 1 folded flat in this way, the second cut line 33 is formed in a shape along the rear edge 36 of the side rising piece 24. That is, in the state where the shelf member 7 is folded along the front surface of the back member 2, the second cut line 33 and the rear edge part 36 are respectively arranged so that the second cut line 33 and the rear edge part 36 overlap each other. Set the shape and position.

(How to assemble the simple assembly shelf 1)
Next, a method for assembling the simple assembly shelf 1 will be described with reference to FIGS.
In order to assemble the folded simple assembling shelf 1 in the field, first, in the simplified assembling shelf 1 shown in FIG. 11, the left and right side members 3 are folded forward and the shelf members 7 are tilted forward while being supported by hands. Let

  Accordingly, as shown in FIG. 12A, the locking piece 25 of the shelf member 7 is inserted into the gap 18 inside the horizontal cut line 12, and the rear edge portion 36 of the side rising piece 24. Slides on the arc-shaped cut surface 14 and rises with respect to the upper bottom surface 19.

  At this time, as shown in FIG. 12B, the movable piece 31 is pushed by the rear edge portion 36 of the side rising piece 24. As a result, the second score line 33 engages with the rear edge 36. Thus, when the 2nd cut line 33 engages with the rear edge part 36, the side part standup piece 24 bends in the normal direction, and stands with respect to the lower bottom face 20. FIG.

  As shown in FIG. 12 (c), the left and right side members 3 are further bent forward and the shelf members 7 are further tilted forward, whereby the locking pieces 25 are inserted deeply into the gap 18, and the left and right side members The shelf member 7 is firmly locked between the three opposing surfaces. Further, the side rising piece 24 rises vertically with respect to the upper bottom surface 19 by further sliding on the arc-shaped cut surface 14. At the same time, the front rising piece 23 rises as the upper bottom surface 19 rises. Thereby, the simple assembly shelf 1 (refer FIG. 1) by which the shelf member 7 was assembled can be obtained, and the user can mount the article 34 (refer FIG. 1) on the shelf member 7, and can display it.

(Effect of embodiment)
As described above, according to the simplified assembly shelf 1 described above, the shelf member 7 can be folded along the front surface of the back member 2 when the side member 3 is in the developed shape. Therefore, the whole simple assembly shelf 1 can be folded into a flat shape. Thereby, the simple assembly shelf 1 is not bulky in the case of conveyance and storage, and the simple assembly shelf 1 can be stored in a narrow space. On the other hand, when the left and right side members 3 are folded from the developed shape to the use shape, the simple assembly shelf 1 is simply tilted forward and locked between the opposing surfaces of the left and right side members 3. Can be assembled. For this reason, the simple assembly shelf 1 can be quickly assembled by a simple operation.

  And in this embodiment, when the side part rising piece 24 slides on the circular arc-shaped cut surface 14 of the side member 3, the 2nd cut line 33 is engaged with the rear edge part 36 of the side part rising piece 24. The side upright piece 24 is bent in a normal direction.

  On the other hand, without providing the first cut line 32 or the second cut line 33 on the side member 3, only by sliding the side rising piece 24 against the inner surface 10 of the side member 3, It is also possible to make the side upright piece 24 stand up. However, in this case, depending on the warp generated in the side member 3 and the side upright piece 24 and the rigidity of the side member 3 and the side upright piece 24, the side upright piece 24 is not bent in the normal direction, There is a possibility that the shelf member 7 cannot be formed in a normal form.

  In this regard, in the present embodiment, the side rising piece 24 is bent in a normal direction by the second cut line 33. As a result, the shelf member 7 can be formed in a normal form, and the simple assembly shelf 1 can be assembled more easily.

  Moreover, the engaging part which bends the side part rising piece 24 in a regular direction with a simple structure which only provides the 1st cut line 32 and the 2nd cut line 33 in the inner surface 10 of the shelf member 7 is a shelf member. 7 can be easily set.

  In addition, in the state where the shelf member 7 is folded along the front surface of the back member 2, the second cut line 33 is formed in a shape along the rear edge 36, so that the left and right side members 3 are folded into a use shape. At the same time, in the process of tilting the shelf member 7 forward, the second cut line 33 and the rear edge 36 can be quickly and reliably engaged.

  Furthermore, since the rear edge portion 36 is inclined toward the upper bottom surface 19 side as it goes to the rear end side (folding curve 22b side) of the shelf member 7, the side member 3 bent to the use shape and the rear edge portion 36 are in strong contact with each other. The trailing edge 36 can be smoothly slid with respect to the arc-shaped cut surface 14. Thereby, the side part standing piece 24 can be bend | folded favorably.

(Modification of rear edge 36 and second cut line 33)
Subsequently, modified examples of the rear edge portion 36 and the second cut line 33 will be described with reference to FIGS. 13 and 14.

  The trailing edge portion 36 and the second cut line 33 described above were each formed by a curve 41 having a relatively small radius of curvature R1 and a straight line 42 (see FIG. 13A). However, the shapes of the “edge” and “cut line (an example of an engaging portion)” according to the present invention are not particularly limited to this example, and various curves, It can be arbitrarily formed by a straight line or a combination thereof.

  For example, as shown in FIG. 13B, the trailing edge 36 and the second cut line 33 may be formed only by a curve 41 having a relatively large radius of curvature R2. Moreover, as shown in FIG.13 (c), you may form the rear edge part 36 and the 2nd cut line 33 with the curve 41 and the straight line 42 of a comparatively big curvature radius R2. Moreover, as shown in FIG.13 (d), you may form the rear edge part 36 and the 2nd cut line 33 only with the straight line 43. FIG. Moreover, as shown in FIG.13 (e), you may form the rear edge part 36 and the 2nd cut line 33 by combining several straight lines 44, 45, and 46 from which directions mutually differ. Furthermore, as shown in FIG. 14, the second cut line 33 may be formed of a long straight line 47 extending in the vertical direction and a short straight line 48 inclined with respect to the vertical direction.

  Note that the inclination angle θ (see FIG. 13A) of the rear edge 36 and the second cut line 33 with respect to the folding lines 19a and 6b (see FIG. 13A) can be set to an arbitrary size. However, about 45 ° is preferable.

  As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiments. Further, it is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Simple assembly shelf 2 Back member 3 Side surface member 6a, 6b Folding curve 7 Shelf member 10 Inner side surface 19 Upper bottom surface (bottom surface)
19a Folding curve 22b Folding curve 24 Side rising piece 33 Second cut line (engagement part)
34 Article 36 Rear edge (edge)
41 Curve 42-48 straight line

Claims (5)

A back member;
Side members that are connected to the left and right ends of the back member via folding lines, and can be bent from a developed shape that opens along the back member to a use shape that faces each other;
It is provided on the front surface of the back member so as to be able to tilt forward through a folding line, and when the side member is in a developed shape, it can be folded along the front surface of the back member, while the side member is folded into a use shape. A shelf member tilted forward from the front surface of the back member and locked between the opposing surfaces of the left and right side members,
The shelf member is
A bottom surface for placing an article;
When the side member is bent into a use shape and the shelf member is tilted forward while sliding on the inner side surface of the side member in accordance with the movement of the side member. A side rising piece that stands up against the bottom surface,
The inner side surface has an engaging portion that engages with an edge of the side rising piece and bends the side rising piece in a normal direction.
Simple assembly shelf characterized by that.   2. The simplified assembly shelf according to claim 1, wherein the engaging portion is a score line provided on the inner side surface.   The simplified assembly shelf according to claim 2, wherein the cut line is formed in a shape along the edge in a state where the shelf member is folded along the front surface of the back member.   The said edge part is formed in the shape which inclines in the said bottom face side as it goes to the rear end side of the said shelf member, The simple assembly shelf in any one of Claims 1-3 characterized by the above-mentioned.   The said edge part and the said score line are each formed with a curve, a straight line, or these combination, The simple assembly shelf in any one of Claims 2-4 characterized by the above-mentioned.

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