JP2000043841A - Sheet structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store a sheet structure compactly in the form of a sheet body when it is stored, enable the sheet structure to be simply assembled from the sheet body to make it firm when it is used, and achieve portability and a low cost. SOLUTION: A sheet structure is assembled from one sheet 1. The sheet 1 comprises a flat portion 2, a curved portion 3, rib portions 4, 5 and a joint tongue piece 6. The flat portion 2 has a predetermined width W and a predetermined length L1. The curved portion 3 is provided connectively to the flat portion 2 with the aid of a folding side A1 and has a length L2. The rib portions 4, 5 are provided connectively to both sides of the curved portion 3 with the aid of folding sides A3, A4, respectively. Outer edges 4a, 5a of the rib portions 4, 5 are formed into the shape of a predetermined curve, respectively. The joint tongue piece 6 is provided connectively to the flat portion 2 at the other end thereof with the aid of a folding side A2. By folding each folding side A1 to A4 and then by engaging the curved portion 3 with the joint tongue piece 6, a firm sheet structure is assembled. When a pressing force is applied to the curved portion 3 from the upper part thereof, a uniform force can be applied to a rear face 2B of the flat portion 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet structure capable of forming a flat surface and a handle by folding and assembling a sheet, and relates to wipers such as brushes, mops, blackboard erasers, cups and containers. The present invention relates to a sheet structure which can be used for a handle, a photo stand, a menu, a stand such as a regular bill, and the like.

[0002]

2. Description of the Related Art This kind of structure, such as a wiper such as a brush, a mop, or a blackboard eraser, a handle such as a cup and a container, a stand such as a photo stand, a menu, and a bill, is conventionally used.
Generally, it is made by injection molding.

[0003]

In such a structure, the finished product has the same form as the state at the time of final use, and it has been impossible to reduce the capacity at the time of transportation and storage. In addition, there was a partially folded structure, but there was a problem that the strength was insufficient. For example, in a mop, it is necessary to uniformly transmit the pressing force applied from a handle to a flat surface, but this cannot be performed with a conventional sheet structure, and the durability is poor, and cleaning cannot be performed well. . Further, a general handle provided on a paper or plastic cup cannot be stably held.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a part of a sheet body is deformed by bending and bending so as to be compact when stored and strong when used. It is an object of the present invention to provide a seat structure that functions as a portable device and achieves both portability and strength.

[0005]

In order to achieve the above object, a seat structure according to the present invention has the following features.
In a sheet structure formed by folding and assembling one sheet, the sheet has a flat portion having a predetermined width and length,
A bendable portion that is integrally connected to one side of the flat portion, two rib portions that are integrally connected to and oppose two sides of the bent portion, and an integral portion of the other side of the flat portion. The connecting tongue piece is connected, and the connecting side of the curved portion and the two rib portions is curved, and the above-described portions are connected and assembled.

According to a second aspect of the present invention, in the sheet structure formed by folding and assembling two sheets, the first sheet has a flat portion having a predetermined width and length, and the flat portion faces the flat portion. It consists of two joined tongues connected to two sides,
The second sheet includes a bendable bending portion, and two rib portions which are integrally connected to the two pieces of the bending portion so as to be opposed to each other, and the bending portion and the two rib portions are provided. The joining side of the two sheets is connected to each other by making the curved portion of the second sheet and the joining tongue pieces of the first sheet detachably joined, so that the two sheets are connected and assembled. Features.

According to a third aspect of the present invention, in the sheet structure formed by folding and assembling one sheet, the sheet is integrally connected to a flat portion having a predetermined width and length and one side of the flat portion. A bendable portion to be bent, two rib portions integrally connected to and opposed to two sides of the curved portion, a joining tongue piece integrally connected to the other side of the flat portion, The remaining two sides of the flat portion are integrally connected to each other so as to face each other, the outer edge has a predetermined curve, and the auxiliary portion includes an auxiliary rib for supporting the rib portion from the outside. The joint side with the rib portion is curved, and the above-mentioned portions are connected and assembled.

According to a fourth aspect of the present invention, a support rib may be provided on a part of the rib portion of the third aspect via a predetermined bent side along a length direction of the rib portion. Good.

According to a fifth aspect of the present invention, the outer periphery of the rib portion according to any one of the first to fourth aspects is arranged such that the outer periphery of the rib portion faces the surface of the flat portion in accordance with the bending state of the bending portion during assembly. May be formed into a curve in line contact.

According to a sixth aspect of the present invention, a notch is formed in a part of a joining side between the curved portion and the rib according to the first to fifth aspects, and the notch is formed in the joining tongue. May be formed with a protruding portion that can be engaged.

Further, as described in claim 7, the joint surface between the curved portion and the rib portion according to claims 1 to 5 may be provided with an engaging member for engaging each other. .

A description will be given with reference to FIG. 1
The sheets 1 are die-cut in a predetermined shape. A curved portion 3 having a length L2 is continuously provided at one end of a flat portion 2 having a predetermined width W and a length L1 of the sheet 1 via a bent side A1. On both sides of the curved portion 3, the bent side A3,
Ribs 4 and 5 having outer edges 4a and 5a having a predetermined curve are provided via A4. A joining tongue piece 6 is provided at the other end of the flat portion 2 via a bent side A2. By bending each of the bent sides A1 to A4 and engaging the curved portion 3 with the joining tongue piece 6, the upper surface of the curved portion 3 is curved, and the outer edges 4a and 5a of the rib portions 4 and 5 contact the flat portion 2 respectively. As a result, a sheet structure that is strong in an assembled state is obtained. Such a sheet structure can be used for a mop or the like in which a uniform pressure is applied to the back surface 2B side of the flat portion 2 by gripping the curved portion 3 and applying pressure.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the sheet structure of the present invention will be described. FIG. 1 is a development view showing the seat structure of the first embodiment. In this embodiment, a sheet structure is formed using one sheet. Sheet 1
A card made of cardboard, a plastic plate, or a synthetic paper such as polypropylene, which has a certain degree of rigidity and can be bent to a certain degree is used. Here, the thickness 0.9
5 mm synthetic paper "Alpha Epo" (manufactured by Oji Yuka Synthetic Paper Co., Ltd.) was used.

As shown in FIG. 1, the sheet 1 is made up of a single die-cut sheet. At the center of the sheet 1, a quadrangular flat portion 2 having a predetermined width W and a length L1 is formed. A curved portion 3 is formed continuously at one end 2 a of the flat portion 2. Ribs 4 and 5 are continuously formed on both sides 3c and 3d of the curved portion 3, respectively. A joining tongue piece 6 is continuously formed on the other end 2b of the flat part 2.

The flat portion 2 is formed in a quadrangular shape having a predetermined width W and a length L1, and both end portions 2a and 2b in the length direction have the same length to be bent sides A1 and A2. Both ends in the width direction are outer edges 2c and 2d having the same length.

The curved portion 3 has one end 3a and the other end 3b having the same width as the width W of the flat portion 2, and has one end 3a in the width direction.
Is a bent side A1, and the other end 3b is an outer edge. The length L2 of the curved portion 3 is formed longer than the length L1 of the flat portion 2, and here, L1: L2 = 146: 171. In the width direction of the curved portion 3, joining sides 3c and 3d having a predetermined curve are provided. These joining sides 3c, 3
“d” has the width W at both ends and forms a curved shape such as an arc which is close to each other at an intermediate position, and forms bent sides A3 and A4.

Ribs 4 and 5 are provided via the bent sides A3 and A4, respectively. The outer edges 4a, 5a of these rib members 4, 5 are formed in a curved shape such as a predetermined quadratic curve. Each of the outer edges 4a and 5a protrudes most outward at the center position.

The outer edge 6a of the joining tongue piece 6 has a substantially U-shape connecting both ends of the joining side 2b. As shown by a dashed line in the figure, both sides 6aa and 6ab of the outer edge 6a It is shaped to be in contact with a part of 3c, 3d. Each of the bent sides A1 to A4 (shown by dotted lines in the figure) is configured to be easily bent, for example, by cutting or denting or forming a groove in the sheet 1.

FIG. 2 is a view showing a state in which the seat 1 having the above configuration is being assembled. In assembling, the joining tongue piece 6 is trough-folded at the bent side A2, and the curved portion 3 is trough-folded at the bent side A1. Then, the joining tongue piece 6 is inserted into the other end 3b of the curved portion 3 and assembled. Further, the ribs 4 and 5 are mountain-folded at the bent sides A3 and A4. At this time, since the length L2 of the curved portion 3 is longer than the length L1 of the flat portion 2, the curved portion 3 has a curved shape in which the central portion projects most.

FIG. 3 is a perspective view showing an assembled state. In this assembled state, the bending portion 3 is bent with respect to the flat portion 2, and a sheet structure capable of gripping the rib portions 4 and 5 is assembled.

FIG. 4 is a plan view in an assembled state, and FIG. 5 is a sectional view of the same. FIG. 5A is a sectional view taken along line AA of FIG.
FIG. 5B is a sectional view taken along line BB of FIG. FIG.
As shown in FIGS. 5A and 5B, the ribs 4 and 5 are in contact with each other at the center of the outer edges 4a and 5a. The outer edges 4a and 5a contact the upper surface 2A of the flat portion 2. Thus, when the bending portion 3 is pressed from above, the pressing force can be uniformly transmitted to the flat portion 2. Further, depending on the pressure balance, a contact line shown in FIG.

For this reason, it is most desirable that the outer edges 4a and 5a make continuous line contact with the upper surface 2A of the flat portion 2. Correspondingly, the shape of the outer edges 4a, 5a may be a predetermined curve (for example, not limited to a circular arc, but may be a quadratic curve such as a parabola, a hyperbola, etc.) so as to make line contact with the upper surface 2A of the flat portion 2 during assembly. The outer edges 4a and 5a are changed according to the curved shape of the curved portion 3.

The sheet structure having the above-described structure can be assembled as needed, and the sheet 1 can be carried in a flat sheet shape, and is excellent in portability. This assembly is a bent side A1
It can be assembled simply by bending along A4. In the assembled state, outer edges 6aa,
6ab is a curved portion 3 and bent sides A3, A of the rib portions 4, 5;
4 (particularly near the end 3b). Thereby, the state where the joining tongue piece 6 has entered the curved portion 3 can be maintained, and the above-mentioned assembled state can be maintained. On the other hand, disassembly can be easily performed only by taking out the engaging tongue piece 6 from the curved portion 3.

Such a sheet structure has a three-dimensional portion which also functions as a flat surface and a handle, such as wipers such as brushes, mops and blackboard erasers, handles for cups and containers, and photo frames. , A menu, a stand such as a regular bill, and the like.

For example, as shown in FIG. 6A, when used as wipers, the rear surface 2B of the flat portion 2
The brush 30 and the like are attached. When the pressing force is applied from above while holding the curved portion 3, a uniform pressure can be transmitted to the flat portion 2, and the brush can come into close contact with the cleaning surface, thereby improving the cleaning property. Become like FIG. 6B is a perspective view showing another attachment state of the wipers. As shown in the figure, for example, a mop piece 31 as a one-ping cloth has a length L1
A material having a length of about the same and having a width not less than the width W is used. And both sides 31a, 31b of the mop piece 31
May be folded back on the upper surface 2A of the flat portion 2 and clamped and fixed between the outer edges 4a and 5a. Further, as shown in the figure, an elastic member 10 such as a sponge is provided on the back surface 2B of the flat portion 2 and the mop piece 31 is wound around the surface thereof to improve the operability of cleaning.

As shown in FIG. 7, when used as a handle, the back surface 2B of the flat portion 2 is attached to the side surface 33a of the cup 33. Then, the user can hold the cup 33 by gripping the curved portion 3. At this time, since the entire sheet structure has rigidity, the cup 33 can be stably held. In the cup 33, the contact surface of the flat surface 2 with the back surface 2B is partially flat as shown. It is suitable for a handle such as a paper cup.

Further, as shown in FIG. 8, when the stand 35 is used for standing and holding the menu 35, the back surface 2B of the flat portion 2 is placed in contact with a mounting table or the like. Also,
A cutout 3G for setting a menu is formed on the upper surface 3A of the curved portion 3 along the longitudinal direction of the central portion of the curved portion 3. Thereby, a menu can be set up in the notch 3G. Since this menu contacts the pair of rib portions 4 and 5 inside the curved portion 3 as shown in FIG.
The standing state can be stably maintained.

In addition, as shown in FIG. 9, it can be used as a photo stand 37 for stands. In this case, the sheet structure is used in such a manner that the rib portion 4 or 5 is placed sideways so as to face the mounting table. At this time, the mounting table has an outer edge 2c.
And the outer edge 2d and the outer edge 2d are in contact with each other, and the rear surface 2B of the flat portion 2 is erected at a predetermined angle rearward. A photograph or the like is attached to the rear surface 2B and used as a photo stand.

Next, FIG. 10 is a developed view showing a second embodiment of the present invention. In this embodiment, two sheets 1
A and 1B constitute a sheet structure. This embodiment has a configuration in which one joining tongue piece is newly provided, and the other configuration is the same as that of the first embodiment, and thus detailed description is omitted.

In the sheet 1A, the flat portion 2 described in the first embodiment and both ends 2a in the longitudinal direction of the flat portion 2 are provided.
2b, the joining tongue pieces 6A and 6B are respectively provided continuously and integrally. On the other hand, the sheet 1B is provided with a curved portion 3 and a pair of rib portions 4 and 5.

FIG. 11 is a perspective view showing an assembled state of the above configuration. In the sheet 1A, the joining tongue pieces 6A and 6B are valley-folded at the bent sides A1 and A2, respectively. Sheet 1B
Then, the rib portions 4 and 5 are mountain-folded at the bent sides A3 and A4, respectively. Thereafter, the joining tongue pieces 6A and 6B are
5 and inserted into the bent sides A3 and A4.

Also in this embodiment, in an unassembled state, the two sheets 1A and 1B are flat sheets.
This can be assembled to form a seat structure.

Next, FIG. 12 is a perspective view showing a third embodiment of the present invention. In this embodiment, a configuration is provided in which engagement means for maintaining the assembled state of the seat structure is provided. For example, the configuration of the first embodiment will be described as an example.
As shown in FIG. 3A, protrusions 6D, 6D are formed on outer edges 6aa, 6ab of the joining tongue piece 6, respectively. The bent sides A of the ribs 4 and 5 correspond to the projections 6D and 6D.
Notches 4D and 5D are formed in the A3 and A4 portions.

As a result, as shown in FIG.
At the time of assembly, the projections 6D, 6D are notched 4D, 5D.
D can be maintained in this assembled state.

The configuration in which the projections and the cutouts are provided as described above can be similarly applied to the second embodiment. In the second embodiment, projections 6D, 6D are respectively provided on the joining tongue pieces 6A, 6B, and two notches 4 are provided at corresponding positions on the bent sides A3, A4 of the ribs 4, 5, respectively.
D and 5D are provided.

FIG. 13 is a perspective view showing a fourth embodiment of the present invention. In this embodiment, the configuration of the engagement means is changed. As shown in FIG. 13 (a), the engaging means is provided with male and female hooks 21 a and 21 b at corresponding positions of the curved portion 3 and the joining tongue piece 6. These hooks 21
a, 21b, as shown in FIG.
The assembled state of the seat structure can be maintained.
In this case, the joining tongue piece 6 is engaged and held in a state of being exposed on the surface of the curved portion 3. Instead of the hook, a hook-and-loop fastener or an adhesive tape which can be attached and detached several times can be used.

Next, FIG. 14 is a developed view showing a fifth embodiment of the present invention. With the cutouts shown in this development, a double sheet structure can be assembled with one sheet 1. In this way, the flat portion 2 can be formed to be long in the width direction with the flat portion 2 as a center, and the curved portion 3 and the joining tongue piece 6 can be provided at both ends in the length direction. According to this configuration, if the flat portion 2 is formed to be long in the width direction of the flat portion 2 as shown by the arrow in the drawing, a more continuous sheet structure can be assembled.

Next, in the development view of the sixth embodiment shown in FIG. 15, the flat portion 2 is formed to be long in the width direction with the flat portion 2 of one sheet 1 as the center. The curved portions 3 and the joining tongue pieces 6 are alternately provided symmetrically at both ends in the length direction. Also in this embodiment, if the flat portion 2 is formed long in the width direction of the flat portion 2,
Multiple seat structures can be assembled.

Next, FIG. 16 is a view showing a seventh embodiment of the present invention. As shown in the developed view of FIG. 16A, the sheet structure has auxiliary ribs 24 and 25 provided at both ends in the width direction of the flat portion 2 via bent sides A5 and A6 of the valley fold, respectively. Outer edges 24a, 25a of auxiliary ribs 24, 25
Is a predetermined curve. When assembling with this configuration, the ribs 4 and 5 are bent so that the joining tongue piece 6 is engaged with the curved portion 3, and finally the auxiliary ribs 2 are formed at the bent sides A5 and A6.
This is performed by bending 4, 25.

As a result, as shown in FIG.
Auxiliary ribs 24 and 25 are folded outside the rib portions 4 and 5. FIG. 16C is a cross-sectional view taken along line CC of FIG. 16B. As shown in the figure, the standing state of the rib portions 4 and 5 is supported by the auxiliary ribs 24 and 25. As a result, the ribs 4 and 5 are held in a fixed state, so that the pressing force applied from above the curved portion 3 can be uniformly transmitted to the flat portion 2 and the overall rigidity can be further increased. Become like

Next, FIG. 17 is a diagram showing an eighth embodiment of the present invention. As shown in the developed view of FIG. 17A, this sheet structure is provided with the auxiliary rib 2 described in the seventh embodiment.
The configuration of the rib portions 4 and 5 is changed in addition to the configurations of the ribs 4 and 25. In the length direction of the rib parts 4 and 5, in the approximate center position,
The bent sides A7, A8 of the valley fold are provided according to the shapes of the bent sides A3, A4 of the curved portion 3. As a result, support ribs 4F and 5F that are continuous with the bent sides A7 and A8 are formed outside the rib portions 4 and 5.

When assembling with this configuration, the ribs 4 and 5 are mountain-folded at the bent sides A3 and A4 with respect to the curved portion 3, and then the valleys are bent at the bent sides A7 and A8 to support ribs 4F and 5F.
To form Then, after the joining tongue piece 6 is engaged with the curved portion 3, the auxiliary ribs 24, 2 are finally provided at the bent sides A5, A6.
Bend 5 and assemble.

FIG. 17B and DD in FIG.
As shown in the sectional view of FIG.
Are projected outward by the supporting ribs 4F and 5F.
For this reason, the outer edges 4a, 5a of the rib portions 4, 5 are in contact with the flat surface 2 at the portions of the support ribs 4F, 5F which are partially projected.
Thereby, the pressing force applied to the center position of the curved portion 3 is transmitted to the flat surface 2 via the support ribs 4F and 5F. The outer edges 4a, 5a of the support ribs 4F, 5F are
Since the protrusion protrudes in the width direction of the flat surface 2, the pressing force can be transmitted to the flat surface 2 by relaxing the pressing force by spring elasticity. In addition, the overall rigidity can be further increased. The standing state of the rib portions 4 and 5 is determined by the auxiliary ribs 24 and
It is supported by 25.

[0044]

According to the present invention, since each portion of the sheet member having a predetermined shape is bent to provide a rib portion provided between the upper curved portion and the lower flat portion, the rib portion is provided at the time of assembly. It can have a strong structure and can be easily assembled. Further, the pressing force applied from the curved portion can be uniformly transmitted to the flat portion. Further, since it can be easily returned to the original sheet, it is compact when not in use and has portability. As described above, according to the present invention, it is possible to obtain a low-cost seat structure capable of obtaining both lightweight and thin portability and strength during assembly.

[Brief description of the drawings]

FIG. 1 is a development view showing a first embodiment of a seat structure of the present invention.

FIG. 2 is a perspective view showing a state during the assembly of the first embodiment.

FIG. 3 is a perspective view showing the seat structure of the first embodiment.

FIG. 4 is a plan view in an assembled state.

FIG. 5 is a sectional view of FIG. 4;

FIG. 6 is a diagram showing a state in which the present invention is applied to mops.

FIG. 7 is a diagram showing a state in which the present invention is applied to handles.

FIG. 8 is a diagram showing a state in which the present invention is applied to stands and the like.

FIG. 9 is a diagram showing a state where the present invention is applied to stands and the like.

FIG. 10 is a developed view showing a second embodiment of the present invention.

FIG. 11 is a perspective view showing a state in the middle of assembly according to the second embodiment.

FIG. 12 is a perspective view showing a third embodiment of the present invention.

FIG. 13 is a perspective view showing a fourth embodiment of the present invention.

FIG. 14 is a developed view showing a fifth embodiment of the present invention.

FIG. 15 is a developed view showing a sixth embodiment of the present invention.

FIG. 16 is a diagram showing a seventh embodiment of the present invention.

FIG. 17 is a view showing an eighth embodiment of the present invention.

[Explanation of symbols]

1 (1A, 1B, 1C) ... sheet, 2 ... flat portion, 2B ...
Back surface, 3 ... curved portion, 4, 5 ... rib portion, 4a, 5a ... outer edge, 4D, 5D ... cutout portion, 4F, 5F ... support rib, 6 ...
Joining tongue piece, 6D: Projection, 21a, 21b: Hook, 2
4, 25: auxiliary ribs, A1 to A8: bent sides.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) D21H 5/20 B B43L 21/00

Claims (7)

[Claims] 1. A sheet structure formed by bending and assembling one sheet, wherein the sheet has a flat portion having a predetermined width and length, and a bendable curve integrally connected to one side of the flat portion. A rib, two ribs which are integrally connected to the two sides of the curved part, respectively, and a joining tongue piece which is integrally connected to the other side of the flat part. A sheet structure, characterized in that a joining side of two rib portions is curved and the above portions are connected and assembled. 2. A sheet structure formed by folding and assembling two sheets, wherein the first sheet is connected to a flat portion having a predetermined width and length, and two opposing sides of the flat portion. The second sheet includes two joining tongue pieces, the second sheet has a bendable bending portion, and two rib portions that are integrally connected to the two pieces of the bending portion so as to face each other. The joining side between the curved portion and the two rib portions is curved, and the curved portion of the second sheet and each joining tongue piece of the first sheet are detachably joined to each other to form the two sheets. A sheet structure, wherein the sheets are connected and assembled. 3. A sheet structure formed by bending and assembling one sheet, wherein the sheet has a flat portion having a predetermined width and length, and a bendable curve integrally connected to one side of the flat portion. Part, two ribs that are integrally connected to two sides of the curved part, respectively, a joining tongue piece that is integrally connected to the other side of the flat part, and two remaining parts of the flat part. The outer edge has a predetermined curve and is composed of an auxiliary rib for supporting the rib portion from outside, and a joining side between the curved portion and the two rib portions. Is a sheet structure characterized by being curved and connecting the above-mentioned parts to be assembled. 4. The seat structure according to claim 3, wherein a support rib is provided on a part of the rib portion along a predetermined bending side along a length direction of the rib portion. 5. The outer periphery of the rib portion is formed into a curved line that is in line contact with the surface of the flat portion in accordance with the curved state of the curved portion during assembly.
5. The sheet structure according to any one of claims 1 to 4. 6. A notch portion is formed at a part of a joining side between the curved portion and the rib portion, and a projection is formed on the joining tongue piece so as to be engageable with the notch portion. 6. The sheet structure according to any one of claims 1 to 5. 7. The seat structure according to claim 1, wherein an engagement member for engaging each other is provided on a joint surface between the curved portion and the rib portion.