JP3240965U - calendar stand - Google Patents

Abstract

To provide a calendar stand which has a simple structure, can be easily assembled, and can be easily mounted even when a plurality of sheets of calendar paper are piled up. A substantially rectangular base plate having an outer edge defining a front surface 2F and a back surface and having fold lines 3u and 3d formed thereon is folded to form support legs or a bottom surface portion 30, and the surface And through the back surface, a plurality of grooves and/or score lines cut out between the outer lines and the inner lines are provided, and the calendar paper can be inserted into at least the grooves formed on the front surface. Left and right lower locking pieces 12d consisting of left and right ⿢-shaped grooves 14k provided on the left and right lower portions of the surface, respectively, and left and right side grooves 14s provided on the left and right sides so as to be connected to the left and right ⿢-shaped grooves. and left and right side locking pieces 12s projecting from the outer line 5e of the left and right side grooves in the direction of the inner line 5i. The calendar paper is mounted on the surface by inserting it in the direction of the outer line from the inner line of the calendar. [Selection drawing] Fig. 1

Description

Applied mutatis mutandis to Article 30, Paragraph 2 of the Patent Act, which is applied mutatis mutandis under Article 11 of the Utility Model Act (1) Date of website posting June 23, 2020 Website address https://calendar. just-shop. jp/, https://calendar. just-shop. jp/categories/? hyoji=1&category=12501&cCd=18&type=125, https://calendar. just-shop. jp/item/? shohin=70&category=12501&cCd=18&hyoji=1&type=125, https://calendar. just-shop. jp/item/? shohin=71&category=12501&cCd=18&hyoji=1&type=125, https://calendar. just-shop. jp/item/? shohin=72&category=12501&cCd=18&hyoji=1&type=125 and https://calendar. just-shop. jp/item/? shohin = 80 & category = 12501 & cCd = 18 & hyoji = 1 & type = 125 (2) Publication date June 23, 2020 Publication name Just Corporation Co., Ltd. Original desk calendar catalog for sales promotion 2023 desk calendar LINE UP CATALOG (3) Posting on the website Date June 23, 2020 Website address https://calendar. just-shop. jp/tmpl/calendar_catalog. pdf and https://www. just-shop. jp/e-catalog/35001/? _gl=1*1uyauvm*_ga*OTk5NDc1MjgzLjE2NTkwNjU4NzQ. *_ga_CJFSPNYNZW*MTY3MDkyNTA4Ny4yNC4xLjE2NzA5MjUwOTkuMC4wLjA. (4) Sales date Refer to the attached customer list, sales location Refer to the attached customer list

The present invention relates to a calendar stand with a simple structure that can be assembled by folding cardboard or the like.

There are many desktop calendars that can be easily assembled by forming grooves, creases, and score lines on a sheet of cardboard, folding the score lines along the crease lines and separating them from the cardboard body. disclosed. In the desk calendar, fold lines and cut lines formed on the surface etc. are processed to form locking pieces for locking the corners and sides of the calendar paper, and to insert the sides of the calendar paper. By forming a frame or a case, 12 months' worth of stacked calendar paper or the like can be mounted on the surface or the like.

Desk calendars that have been commercially available in the past can have their front and/or back facing upright or obliquely to the desk surface to display the attached calendar paper. For example, the desk calendar disclosed in Patent Document 1 separates the score line connected to both ends to form a support leg by folding the crease line from the front side to the back side, and the surface is inclined to the desk surface. can support. In addition, the advertising material disclosed in Patent Document 2 is folded in two along the crease lines to form a front surface portion and a back surface portion, and the crease line formed below one or both surfaces is oriented toward the other surface. can be folded over to form a bottom, the front and/or back of which can be supported obliquely to the desk surface.

Moreover, the desk calendar according to Patent Document 1 can display the display surface of the calendar paper by inserting the calendar paper stacked for 12 months into the case formed on the surface thereof. However, the work of processing the fold lines and cut lines formed in the cardboard and assembling the case and the support legs is somewhat complicated. On the other hand, in the invention described in Patent Document 2, the method of attaching calendar paper is unknown.

Utility Model Registration No. 3178132 Japanese Patent No. 4312614 Design registration No. 1669670

The desk calendar according to Patent Document 3, like the invention of Patent Document 2, is folded in two along the crease lines to form a surface portion and a back portion, and the crease lines formed below both surfaces are mutually connected to the other surface. It is a calender stand that has a substantially isosceles triangular shape when viewed from the side and is bent in a direction and connected to form a bottom. This desk calendar has semicircular grooves cut out between the outer line and the inner line at the four corners of the surface, and the four corners of the calendar paper are inserted into the semicircular grooves using the outer line side as locking pieces. Then, it can be locked by the locking piece on the outside line side.

The configuration of the desk calendar according to Patent Document 3 is very simple, and can be easily assembled and loaded with calendar paper. However, due to the simple structure in which the four corners of the calendar paper are inserted into the semicircular grooves provided on the four corners of the surface and held by the locking pieces on the outer wire side, multiple calendar papers can be loaded at the same time. was unsuitable for That is, in order to insert the calendar paper into the grooves provided at the four corners of the surface, it is necessary to bend the calendar paper vertically and horizontally. rice field. In addition, since the calendar sheets inserted into the semicircular grooves provided at the four corners of the surface are simply held down by the locking pieces on the outer line side of the grooves, especially when a plurality of calendar sheets are loaded, some or all of the calendar sheets are held. There was also a problem that the calendar paper was easy to come off.

Therefore, the present invention has a very simple structure in which only grooves, cut lines, and crease lines are formed on a substantially rectangular base plate such as cardboard. , to provide a calendar stand that can be easily mounted on its surface and/or back.

The calendar stand according to the present invention comprises a substantially rectangular base plate having a front surface, a back surface, and an outer edge defining both surfaces, and having fold lines formed on the front surface and/or the back surface. A plurality of grooves and/or score lines cut out between the outer lines and the inner lines are provided through the front surface and the back surface while forming a bottom portion or support legs by bending, and the calendar is applied to at least the grooves and/or score lines on the surface. In a calendar stand into which paper can be inserted,
Left and right lower locking pieces consisting of left and right ￢-shaped grooves respectively provided on the left and right lower parts of the surface, left and right side grooves provided on the left and right sides so as to be connected to the left and right ￢-shaped grooves, and the Left and right side locking pieces projecting in the inner line direction from the outer lines of the left and right side grooves, and one or more calendar sheets are inserted in the outer line direction from the left and right ￢-shaped grooves and the inner lines of the left and right side grooves. , and the calendar paper can be attached to the surface by the lower locking piece and the left and right side locking pieces.

The calendar stand according to the present invention has a substantially rectangular base plate that has a front side, a back side, and an outer edge that defines both sides, and that can be bent at least at an upper crease line and two lower crease lines that sandwich the upper crease line. Forming a first surface and a second surface by bending toward the back at the upper crease line, and connecting the bottom of the first surface and the bottom of the second surface bent at the two lower creases to form a bottom surface, In a calendar stand that can form an approximately isosceles triangle when viewed from the side,
A calendar stand into which calendar paper can be inserted by providing a plurality of grooves cut out between the outer lines and the inner lines on the first surface and/or the second surface,
Left and right lower locking pieces consisting of left and right ￢-shaped grooves respectively provided on the left and right lower parts of the first surface, and left and right side grooves provided on the left and right sides so as to be connected to the left and right ￢-shaped grooves. , and left and right side locking pieces protruding in the inner line direction from the outer lines of the left and right side grooves, and one or a plurality of calendar sheets are inserted from the left and right ⿢-shaped grooves and the inner lines of the left and right side grooves. By inserting it in the direction of the outer line, the calendar paper is attached by the lower locking piece and the left and right side locking pieces.

In the calendar stand according to the present invention, left and right upper grooves extending substantially parallel to the upper end crease line are provided on the upper part of the first surface, and the left and right upper grooves, the left and right side grooves, and the left and right side grooves are provided. Left and right U-shaped grooves are formed in which the mold grooves are connected on the left and right outer edge sides of the first surface, and the inner frame surface located inside the left and right U-shaped grooves is formed with the left and right U-shaped grooves. From the outer frame portion located outside the U-shaped groove portion, it is possible to easily push down in the direction of the center of gravity of the substantially isosceles triangle in side view.

In the calendar stand according to the present invention, grooves are provided from the left and right upper grooves in the direction of the upper crease line, and the left and right upper locking pieces are formed by ⿢-shaped grooves that are vertically opposite to the lower locking pieces. may

The calendar stand according to the present invention is provided with a set of outer corner locking pieces consisting of four ⿢-shaped or arc-shaped grooves in the upper, lower, left, and right corners of the second surface, and the outer corner locking piece set is On the inward side, a set of inner corner locking pieces consisting of four types of upper, lower, left, and right grooves or arcuate grooves may be provided.

The calendar stand according to the present invention is formed by cutting out a part of a substantially rectangular base plate across the upper crease line of the base plate and bending it toward the back surface at the upper crease line of the front surface side of the base plate. Holes may be formed in the upper ends of the surface and the second surface.

In the calendar stand according to the present invention, the insertion piece provided on the bottom of the first surface and/or the bottom of the second surface is inserted into the insertion hole provided on the bottom of the second surface and/or the bottom of the first surface. Thus, the first surface bottom portion and the second surface bottom portion may be connected to form the bottom surface portion, thereby forming a substantially isosceles triangle in a side view.

The calendar stand according to the present invention has a very simple structure in which only grooves, score lines, and crease lines are formed on a substantially rectangular base plate made of cardboard or plastic. A simple configuration in which the crease line is folded from the front side to the back side is sufficient, and can be easily assembled.

The calendar stand according to the present invention includes left and right lower locking pieces consisting of left and right ￢-shaped grooves respectively provided on the left and right lower parts of the surface (or the first surface), and left and right Left and right side grooves provided on the sides of the left and right side grooves, and left and right side locking pieces protruding in the inner line direction from the outer lines of the left and right side grooves. Therefore, the left and right lower corners and the left and right side portions of one or a plurality of calendar sheets are inserted from the inner lines of the left and right ￢-shaped grooves and the left and right side grooves in the outer line direction, respectively, and the lower locking pieces and the left and right By locking with the side locking pieces, the calendar paper can be easily attached to the surface.

Since the left and right ￢-shaped grooves and the left and right side grooves are connected, the inner frame surface positioned inside the left and right side grooves and the left and right ￢-shaped grooves is placed closer to the outer frame part positioned outside. , it is easy to greatly push down in the direction of the back surface (or the second surface) of the erected calendar stand. Therefore, a large number of calendar sheets can be inserted from the inner line of the groove to the outer line direction, and can be attached to the surface (or the first surface) thereof by being locked by the locking piece.

The calendar stand according to the present invention further forms left and right upper grooves on the first surface (or surface), and these left and right upper grooves, left and right side grooves, and left and right ￢-shaped grooves are formed on the first surface. The left and right U-shaped grooves may be formed by connecting the left and right outer edge portions. The inner frame surface located inside the left and right U-shaped grooves can be pushed down greatly in the direction of the center of gravity of the approximately isosceles triangle when viewed from the side, from the outer frame located outside the left and right U-shaped grooves. Therefore, a large number of calendar sheets can be loaded as described above.

(Upper locking piece)
In addition, the calendar stand of this embodiment has grooves extending from the left and right upper grooves to the upper crease line direction, and the lower locking pieces form left and right upper locking pieces consisting of ⿢-shaped grooves in the upside down direction. A calendar sheet can also be locked to this upper locking piece.

(Corner locking piece)
Furthermore, the calendar stand of this embodiment is provided with a set of outer corner locking pieces consisting of four ￢-shaped or arc-shaped grooves at the top, bottom, left, and right corners of the second surface (or back surface). A calendar sheet can also be inserted into the set of locking pieces and attached to the second surface. Alternatively, in addition to the set of outer corner locking pieces, a set of inner corner locking pieces consisting of four ￢-shaped or arc-shaped grooves on the upper, lower, left, and right sides of the set of outer corner locking pieces may be added to the inner direction side of the set of outer corner locking pieces. It is also possible to provide a small-size calendar paper or the like.

(Hole)
In addition, the calendar stand of this embodiment is formed by cutting out a part of the substantially rectangular base plate across the upper crease line of the base plate and bending it toward the back surface at the upper crease line of the front surface side of the base plate. Holes may be formed in the upper ends of the surface and the second surface. Via this hole, the upper part of the calendar sheet attached to the first surface or the second surface (the front surface or the back surface) can be gripped, making it easy to attach and detach.

As described above, the calendar stand according to the present invention has a very simple configuration in which only grooves, cut lines, and crease lines are formed on a substantially rectangular base plate such as cardboard, and can be easily assembled. Stacked sheets of calendar paper can be easily attached to their first and/or second side (front and/or back).

1 is a front perspective view of a calendar stand according to the present invention; FIG. (a) A plan view, (b) a front view, (c) a bottom view, and (d) a side view of a calendar stand according to an example. (a) back view and (b) side view of the calendar stand according to the example. (a) Front view and (b) perspective view of the calendar stand according to the embodiment with the calendar paper mounted on the first surface. (a) A front view and (b) a perspective view of a calendar stand according to another embodiment in which calendar paper is attached to the first surface. (a) A surface view of a base plate, (b) a side view of a base plate, and (c) a rear perspective view of a calendar stand according to an example. (a) A surface view of a base plate, (b) a side view of a base plate, and (c) a side view of a calendar stand according to another embodiment.

Hereinafter, embodiments and examples of a calendar stand according to the present invention will be described with reference to the drawings. In addition, the same code|symbol shall be used for the same component through each drawing below.

(1) Embodiment of calendar stand according to the present invention

As shown in FIGS. 6(a) to 6(c), the calendar stand 1 according to the present invention has a front surface 2F, a back surface 2B, and an outer edge portion 2E that defines the surfaces 2F and 2B. A substantially rectangular base plate 2 having crease lines 3 and/or grooves 5 and/or score lines 6 formed therein is used. The material of the base plate 2 is preferably paper, plastic, or the like. not.

In the calendar stand 1 according to the present invention, the crease line 3 formed on the base plate 2 is bent from the front surface 2F toward the back surface 2B to form a support leg 32 as shown in FIG. 6(c), for example. can. By folding the crease line 3 in the direction of the back surface 2B, the support leg 32 protrudes in the direction of the back surface 2B along the cut line 6 (or groove 5) provided symmetrically near the center of FIG. As in c), the base plate 2 can be supported three-dimensionally.

The calendar stand 1 of the present invention is provided with a plurality of grooves 5 (or cut lines 6) cut out between the external line 5e and the internal line 5i through the front surface 2F and the back surface 2B, and the grooves 5 (or cut lines 6) formed at least on the surface 2F. Alternatively, the calendar sheet 100 can be inserted into the score line 6). That is, the calendar paper 100 is inserted into the grooves 5 (or score lines 6) provided symmetrically on the left and right sides of the base plate 2 shown in FIG. A calendar sheet 100 can be attached to the surface 2F of the stand 1. - 特許庁

In FIG. 6A, the cut line 6 in the shape of the support leg 32 provided bilaterally symmetrically near the center may be a groove 5 in which the external line 5e and the internal line 5i are spaced apart. The grooves 5 provided symmetrically on the left and right sides into which the calendar paper 100 is inserted may be scored lines 6 in which the external line 5e and the internal line 5i are substantially aligned, but the left and right side engagements are as follows. Preferably, the groove 5 is spaced between the outer wire 5e and the inner wire 5i to provide the stop piece 12s.

The calendar stand 1 according to the present invention has left and right lower locking pieces 12d made up of left and right ⿢-shaped grooves 14k provided on the left and right lower portions of the surface 2F, respectively, and left and right sides so as to be connected to the left and right ⿢-shaped grooves 14k. Left and right side grooves 14s provided in the left and right side grooves 14s, and left and right side locking pieces 12s projecting in the direction of the inner line 5i from the outer line 5e of the left and right side grooves 14s. One or a plurality of calendar sheets 100 are inserted from the left and right ￢-shaped grooves 14k and the left and right side grooves 14s from the inner lines 5i to the outer lines 5e. A calendar sheet 100 can be attached to the surface 2F.

As shown in FIGS. 7(a) to 7(c), the calendar stand 1 according to the present invention has two crease lines 3 formed vertically on the base plate 2 for folding from the front surface 2F to the back surface 2B. The line 3d may be bent to form the bottom surface portion 30, and the upper fold line 3u may be bent to connect the tip thereof to the bottom surface portion 30 as shown in FIG. 7(c).

The calendar stand 1 of the present embodiment formed in this way has a first surface 10 on which the folding line 3u is folded, a second surface 20 on the folded surface, and a bottom portion 30 on the tip of the folded second surface 20. They are connected to form a substantially isosceles triangle when viewed from the side (see FIG. 7(c)). Then, one or a plurality of calendar sheets 100 are inserted in the left and right ⿢-shaped grooves 14k and the left and right side grooves 14s provided on the first surface 10 in the direction of the inner lines 5i and the outer lines 5e, and The calendar paper 100 can be attached to the first surface by the side locking pieces 12s.

Hereinafter, the calendar stand 1 according to the present invention will be described in more detail using examples.

(2) Example of calendar stand according to the present invention

(base plate)
The calendar stand 1 according to this embodiment shown in FIG. 1 has a front surface 2F, a back surface 2B, and an outer edge portion 2E defining the surfaces 2F and 2B. 2(a) to 2(d) and FIG. 7(a).

(Calendar stand configuration)
As shown in FIGS. 2(a) and 2(d), the calendar stand 1 according to the present embodiment has a first surface 10 and a second surface 20 which are folded in the direction of the back surface 2B at the upper crease line 3u on the front surface 2F side of the base plate. to form Also, as shown in FIGS. 2(c) and 2(d), the bottom surface portion 30 is formed by connecting the first surface bottom portion 10B and the second surface bottom portion 20B, which are bent at the two lower crease lines 3d. The calendar stand 1 of the present embodiment constructed in this manner forms a substantially isosceles triangle when viewed from the side, as shown in FIG. 2(d).

(Outer corner locking piece)
The first surface bottom portion 10B and the second surface bottom portion 20B are, for example, an insertion piece 16 provided on the first surface bottom portion 10B or the second surface bottom portion 20B and an insertion piece provided on the second surface bottom portion 20B or the first surface bottom portion 10B. By inserting them into the holes 17, they can be connected. Alternatively, the overlapping portion of the first-surface bottom portion 10B and the second-surface bottom portion 20B may be bonded. In the calendar stand 1 according to the present embodiment, the connected first surface bottom portion 10B and second surface bottom portion 20B form a bottom surface portion 30, and the first surface 10, the second surface 20, and the bottom surface portion 30 form a side A substantially isosceles triangle can be constructed (see FIG. 2(d)).

(groove)
In FIGS. 2(a) and 2(b), reference numerals 14, 42e and 42i are grooves 5 cut out between the external line 5e and the internal line 5i. The calendar stand 1 of this embodiment is provided with a plurality of grooves 5 on the first surface 10 and/or the second surface 20 as shown in FIGS. A calendar sheet 100 can be inserted as shown in (b).

(locking piece)
In the calendar stand 1 of this embodiment, on the first surface 10, the left and right lower locking pieces 12d, which are formed by the left and right ? left and right side grooves 14s provided on the left and right sides, and left and right side locking pieces 12s projecting in the direction of the inner line 5i from the outer line 5e of the left and right side grooves 14s (see FIG. 2(b) ). Then, one or a plurality of calendar sheets 100 are inserted into the left and right ⿢-shaped grooves 14k and the left and right side grooves 14s from the inner lines 5i to the outer lines 5e, thereby securing the lower locking pieces 12d and the left and right side locking pieces 12s. Then, the calendar paper 100 can be attached (see FIGS. 4(a) and 4(b)).

(U-shaped groove)
As shown in FIGS. 1 and 2(b), the calendar stand 1 of this embodiment may have left and right upper grooves 14u extending substantially parallel to the upper crease line 3u on the upper portion of the first surface 10. FIG. The left and right upper grooves 14u, the left and right side grooves 14s, and the left and right ⿢-shaped grooves 14k are connected at the left and right outer edge portions 2E of the first surface 10 to form the left and right U-shaped groove portions 14. can do. In the calendar stand 1 of this embodiment, the inner frame surface 15I located inside the left and right U-shaped grooves 14 is positioned from the outer frame portion 15E located outside the left and right U-shaped grooves 14. Since it is easy to push down in the direction of the center of gravity of the approximately isosceles triangle when viewed from the side, the space between the internal line 5i and the external line 5e of the groove 5 can be widened, and a large number of calendar sheets 100 can be easily loaded.

(Upper locking piece)
2(b), the calendar stand 1 of this embodiment is provided with grooves 5 extending from the left and right upper grooves 14u in the direction of the upper crease line 3u so that the lower locking pieces 12d are vertically opposite to each other. The left and right upper locking pieces 12u may be formed by the mold grooves 14k. In the calendar stand 1 of this embodiment, as shown in FIGS. 5(a) and 5(b), the calendar sheet 100 can also be locked to the upper locking piece 12u.

(Corner locking piece)
Further, as shown in FIG. 2(a), the calendar stand 1 of the present embodiment has outer corner locking pieces 42e formed of four ∂-shaped or arc-shaped grooves 44 at the upper, lower, left, and right corners of the second surface 20. A set may be provided. Alternatively, in addition to the set of outer corner locking pieces 42e, an inner corner locking piece consisting of four ￢-shaped or arc-shaped grooves 44 on the upper, lower, left, and right sides of the set of outer corner locking pieces 42e is provided on the inner side of the set of outer corner locking pieces 42e. 42i sets may be provided.

As shown in FIG. 2B, the calendar stand 1 of this embodiment can form a substantially isosceles triangle when viewed from the side, which is composed of the first surface 10, the second surface 20, and the bottom surface portion 30. , a calendar sheet 100 can be mounted on both the first side 10 and the second side 20 . Alternatively, the calendar paper 100 may be attached to the first surface 10, and a postcard or the like may be inserted into the set of the outer corner locking pieces 42e of the second surface 20, and the inner corner locking pieces 42i of the second surface 20 may be inserted. A business card or the like may be inserted into the set.

(Hole)
In addition, the calendar stand 1 of this embodiment cuts out a part of the base plate 2 across the upper crease line 3u of the substantially rectangular base plate 2, and the back surface 2B is formed by the upper crease line 3u on the front surface 2F side of the base plate 2. Holes 4 may be formed in the upper ends of the first surface 10 and the second surface 20 formed by bending in the directions (see FIGS. 1, 2(a), (b), and FIG. 3(a)). Through this hole, the upper part of the calendar sheet 100 attached to the first surface 10 or the second surface 20 can be gripped, and the attachment and detachment of the calendar sheet 100 can be facilitated.

Although the calendar stand according to the present invention has been described above, the present invention is not limited to the above embodiments and examples.

In addition, the present invention can be implemented with various improvements, modifications, and changes based on the knowledge of those skilled in the art without departing from the gist of the invention.

The calendar stand according to the present invention can be used to display calendar sheets, postcards, business cards, etc. on a desk or to store them.

1: Calendar stand 2: Base plate 2F: Front side 2B: Back side 2E: Outer edge 3: Fold line 3u: Top fold line 3d: Bottom fold line 4: Hole
5: Groove 5e: External line 5i: Internal line 6: Score line 10: First surface 10B: Bottom of first surface 12: Locking piece 12u: Upper locking piece 12s: Side locking piece 12d: Lower locking piece 14: U-shaped groove portion 14u: upper groove 14k: ⿢-shaped groove 14s: side groove 15E: outer frame portion 15I: inner frame surface 16: insertion piece 17: insertion hole 20: second surface 20B: second surface bottom portion 30: Bottom part 32: Support leg 42: Locking piece 42e: Outer corner locking piece 42i: Inner corner locking piece 44: ￢-shaped or arc-shaped groove 100: Calendar paper

Claims (7)

A substantially rectangular base plate having a front surface, a back surface, and an outer edge defining the two surfaces, and having fold lines formed on the front surface and/or the back surface. along with forming
A calendar stand in which a plurality of grooves and/or score lines are provided through the front and back surfaces and cut out between the outer lines and the inner lines, and calendar paper can be inserted into at least the grooves and/or score lines on the surface,
Left and right lower locking pieces consisting of left and right ￢-shaped grooves provided on the left and right lower parts of the surface, respectively;
Left and right side grooves provided on the left and right sides so as to be connected to the left and right ￢-shaped grooves;
Left and right side locking pieces protruding in the inner line direction from the outer line of the left and right side grooves,
One or a plurality of calendar sheets are inserted from the inner lines of the left and right ⿢-shaped grooves and the left and right side grooves in the outer line direction, and the calendar sheets are held by the lower locking pieces and the left and right side locking pieces. A calendar stand that attaches to the surface. A substantially rectangular base plate having a front surface, a back surface, and an outer edge defining both surfaces, and capable of being bent at least at an upper fold line and two lower fold lines sandwiching the upper fold line, is stretched in the back direction at the upper fold line on the front side. It is folded to form a first surface and a second surface, and the bottom surface is formed by connecting the bottom portion of the first surface and the bottom portion of the second surface, which are bent at the two lower crease lines, to form a substantially isosceles triangle when viewed from the side. In a possible calendar system,
A calendar stand into which calendar paper can be inserted by providing a plurality of grooves cut out between the outer lines and the inner lines on the first surface and/or the second surface,
Left and right lower locking pieces consisting of left and right ￢-shaped grooves respectively provided on the left and right lower parts of the first surface;
Left and right side grooves provided on the left and right sides so as to be connected to the left and right ￢-shaped grooves;
Left and right side locking pieces protruding in the inner line direction from the outer line of the left and right side grooves,
One or a plurality of calendar sheets are inserted from the inner lines of the left and right ⿢-shaped grooves and the left and right side grooves in the outer line direction, and the calendar sheets are held by the lower locking pieces and the left and right side locking pieces. A calendar stand according to claim 1, which is mounted. Left and right upper grooves extending substantially parallel to the upper end crease line are provided on the upper part of the first surface,
Left and right U-shaped grooves are formed by connecting the left and right upper grooves, the left and right side grooves, and the left and right ⿢-shaped grooves on the left and right outer edge sides of the first surface,
The inner frame surface located inside the left and right U-shaped grooves can be easily pushed down in the direction of the center of gravity of the substantially isosceles triangle in side view from the outer frame located outside the left and right U-shaped grooves. 3. A calendar stand according to claim 1 or claim 2. 4. The calendar according to claim 3, wherein grooves are provided from said left and right upper grooves in the direction of said upper crease line, and said left and right upper locking pieces are formed of ?-shaped grooves vertically opposite to said lower locking pieces. stand. At the upper, lower, left, and right corners of the second surface, a set of outer corner locking pieces consisting of four ￢-shaped or arc-shaped grooves are provided,
3. The calendar stand according to claim 2, wherein a set of inner corner locking pieces consisting of four upper, lower, right, and left ?-shaped grooves or arcuate grooves is provided on the inner side of the set of outer corner locking pieces. At the upper ends of the first and second surfaces formed by cutting out a part of the substantially rectangular base plate across the upper crease line of the base plate and bending it toward the back surface at the upper crease line of the front surface side of the base plate 3. The calender stand according to claim 2, wherein a hole is formed. In the calendar stand according to claim 2,
The insertion piece provided on the bottom of the first surface and/or the bottom of the second surface,
By inserting into the insertion hole provided in the bottom of the second surface and/or the bottom of the first surface,
A calendar stand in which the bottom portion is formed by connecting the bottom portion of the first surface and the bottom portion of the second surface to form a substantially isosceles triangle when viewed from the side.

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