JPH07303529A - Manufacture of folding bookrest - Google Patents

Abstract

PURPOSE:To fabricate a folding type bookrest simply and quickly by inserting two-side joining edge pieces of a main member wherein the whole construction assumes a truncated angle, into the gap between an upper and a lower bottom plate of a bottom plate structure, combining these two constituent members in the rear part in the separated condition as they are, and also joining them together in the front part. CONSTITUTION:A folding type bookrest is formed from a bottom plate member B and a main member A made of a corrugated cardboard, plastic sheet, etc. The main member A is configured so that a back wall 3 is partitioned through a vertical fold ridge 2 from the two ends 1a of the upper edge 1 having a height of 120-150mm and a width of 65-85mm, that a joining edge piece 5 is installed through a folded line 4 at the bottom of side wall 6 to be connected to the back wall 3, and that a diagonal folded line 10 is arranged from the center 8a of a gradient end face 8 to the corner 9. The bottom plate member B is so structured that a slide stopper part 14 is installed in the part 12a ahead of the lower bottom plate 12 and the central part is embodied in a folded double bottom structure. The joining edge piece 5 is inserted between the upper and lower bottom plates 11, 12, and thus the intended bookrest is completed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a main member made of a thin plate material such as cardboard or plastics and a bottom plate member. The present invention relates to an improvement in a manufacturing method for assembling a bookstand simply, quickly and surely.

[0002]

2. Description of the Related Art Conventionally, in the case of manufacturing a folding bookstand by bending and joining thin plate materials, as shown in FIG. 7 which is developed, all members are integrally formed and assembled. Such an integrally formed product will not only meet the requirements for the strength of this type of pedestal, but also that the number of products manufactured from the unit material plate will be extremely small, the material will be wasted significantly, and the manufacturing cost will be increased. There were drawbacks such as.

[0003]

According to the above-mentioned prior art, both the standing wall portion and the bottom plate portion, which are the main portions of the material plate, are T-shaped.
Since it is integrally formed in a letter shape, it is difficult to secure the robustness due to the multiple construction of the part that requires strength in addition to the disadvantage in the dimension, and the standing wall and the bottom plate are bisected in a T shape. When using the conventional method, not only the front end portion of the bottom plate due to the fine degree of joining and the deviation of the angle of the joining portion but also other portions and the whole, there are problems such as a defect causing distortion and poor work efficiency on joining. At the same time, the inventors of the present invention have eliminated the drawbacks of these conventional products and, while being a manufacturing means by a method of joining and forming two members, have a robust and favorable appearance that is advantageous in terms of the size and large in required strength. The present invention aims to make it possible to mass-produce a folding folding book stand at low cost by quick and simple joining and assembling with a piece of tape or the like.

[0004]

A material plate made of a thin plate such as cardboard or plastics is cut by combining a main member A and a bottom plate member B in the upper and lower parts as shown in FIG. It is obvious that no waste will occur,
As a mass production method, if only the main member is closely cut into a trapezoidal arrangement shape of forward and reverse, and only the bottom plate member that can be folded in two in an elongated shape is manufactured with a separate material plate, these two members will be separated by material. It is also possible to combine them freely, and the benefit of implementing the method of the present invention (the benefit of providing it as a work material for school children) is that the two members for joining and assembling are formed by the two left and right drilled holes in front of the bottom plate and the wire core material. It is possible to quickly and safely join and fix the tape and the assembly by using a tape or a string-like material made of vinyl or other material enclosing the material.

In forming a joint of a conventional bookstand assembly member, since the upper edge of the bottom plate member, which is a relatively long member, is joined to the lower end of the back wall of the main member in a T-shape, the glue is preliminarily formed at this portion. Although pasting and welding were performed, this not only requires a considerable amount of work, but also when there is unevenness in the degree of joining at the joining points or when there is a joining misalignment, distortion occurs in each part of the product and In addition, depending on the degree, there are drawbacks such as defective products that cannot be used. In order to eliminate these adverse effects, the main member A and the bottom plate member B are intentionally formed in two, but when joining both members, the joining means at the joining portion according to the above-mentioned conventional method is not used, but rather both members are joined. Leaving the relevant part in a free state, and forming a close-contact structure between the outer sides of the bent parts or the outer side of the bent part of the bottom plate and the cut end surface 4'of the lower end of the back wall, that is, at least the end part at the rear of the bottom plate. Without making the so-called cut-out (exposed state of the cut surface), it is possible to ensure a reliable and quick corner contact structure by forming a close contact state between the bent outer side surface and the linear cut end surface 4'at the lower end of the back wall. In addition to enabling the assembling configuration of the members, not only in the joining means in the front portion of the main body member and the bottom plate member, but also in the case of adopting a desired multiple configuration mode, at the same time as sandwiching and joining the joining edge piece or the like at the lower end of the main body member. By a simple method that can quickly perform the fixing by one tape or string-like material is obtained by so as to increase complement the robustness of the product.

[0006]

The folding book stand manufactured by the method of the present invention is shown in FIG. 3 (perspective view), and the approximate shape and folding method are the inventions of the applicant of the present invention (eg, patent applications). Invention of Official Publication No. 4-55043, 4-7924
The invention of No. 3 and the gazettes of the registered design No. 721622, similar to No. 3, No. 9, No. 9, and No. 10) are publicly known. In the method of the present invention, the main body member and the bottom plate member are integrally formed antipodally. In this respect, the method of the present invention is different from the publicly known inventions and inventions shown above in that, in spite of making both members separate, in the conventional product, at the upper and lower end portions where both members are joined, , Without attaching any fixing means such as sticking, welding, stapling, or the like, at the joint corners of the two members with the fixing members left alone, the lower end of the back wall and the rear end of the bottom plate, or at least the bottom plate. In the rear end part, it is possible to have a slightly elastic support in a good appearance without exposing the cut end face (cut).
In addition to supplementing its durability, from the rear part of the bottom plate to the front part, only by the simple fitting and combining means of the joining edge piece at the lower end of the main member and the tape fastening described later in the front part,
It is possible to rapidly manufacture a foldable and durable folding book stand, and in folding it, the side wall is internally bent as shown in the similar No. 10 design gazette of the registered No. 721622. It is also possible to freely select and implement this in an outwardly bent shape. In particular, in the method of the present invention, in joining the bottom plate and the lower end of the side wall,
Penetrating a tape or string-like material (hereinafter, referred to as "tape or string-like material containing wire core material") made of vinyl or other material that encloses the wire core material in both holes as the contact fixing means at the front part of the bottom plate. It is devised so that the assembly can be performed safely and simply by stopping it.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following is a description of an embodiment of the present invention with reference to the accompanying drawings. About 12 mm in height by using a material plate with a unit area of a thin plate such as a B4 size cardboard or similar plastics with a thickness of about 0.5 mm or a suitable size.
0 mm to 150 mm, lateral width of about 65 mm to 85 mm Folds at the lower ends of the back wall 3 and the side walls 6 connected to the left and right sides of the back wall 3 formed from the both side edges 1a via the vertical ridge lines 2 and 2. Below the bending line 4, the wedge-shaped notches 7, 7 and the like are provided with the joining edge pieces 5 and 5 of an appropriate width which are divided and formed so as to prevent the fracture edge from protruding during bending, and the inclination angle is about 45 degrees. An oblique bending line 10 extending from a substantially central portion 8a of the sloped end surface 8 to a lower end joint corner portion 9 of the side wall 6 and the back wall 3 is provided, and the entire portion except the joint edge pieces 5 and 5 is substantially cut. A main member A having a peak-mounting shape, and separately from this, are folded in two at the rear to form a pair of upper and lower parts, thereby forming a flat surface.

[Outside 2] The front edge 12a of the lower bottom plate 12 of the bottom plate member B in which the joining edge pieces 5, 5 on both sides of the lower end of the main member A bent inward can be folded at right angles to be inserted and sandwiched between the upper and lower bottom plates is not undulated or undulated. Without forming the front portion (corresponding to the front side 12a of the lower bottom plate) which can be preliminarily bent or arranged afterwards, the non-slip portion 14 of an appropriate shape, and without extending the rear side thereof in an open state, Separately prepared is a bottom plate member B which is formed by folding the bottom part of the lower bottom plate 12 in the front part of the front part 12a of the lower part 12 in FIG. In the plane from both sides in the longitudinal direction between the upper and lower bottom plates formed by folding in half from the center

[Outside 3] Both joint edge pieces 5 and 5 at the lower end of the main member A bent into
Is folded inward at a right angle and inserted, and the joint edge piece 5'which may be left at the lower end of the central portion (back wall 3) of the main member is internally folded and placed on the upper surface of the bent portion B _{1 at} the rear end of the bottom plate member. If necessary, the joining edge piece 5'is prevented from being lifted up by the end 5a of the joining edge piece, or if this (5 ') is removed in some cases, the joining edge is provided at least at the front part between the upper and lower bottom plates 11 and 12. 3mm diameter provided in front of the pieces 5, 5
Tape or string-shaped material (tape or string-shaped material containing wire core material) made of vinyl or other material that encloses the wire core material through the hole 15 in the upper and lower bottom plates corresponding to the 4 mm hole 15
17 (a tape or string-like material having a width of about 3 mm to 4 mm and a length of about 100 mm) is penetrated, and both sides thereof are bent to be opposed to each other and held as they are, and an appropriate perforation is provided or provided as necessary. It is also free to make a cosmetic stop on the bent opposite ends of the tape containing the wire core material or the string-like material 17 by a thin plate-like sealing material 18 made of paper, cardboard, plastics or metal. Such a bottom plate member B
In the case of the joining method by the fastening means at the front part of the main member A and the main member A, the through hole is provided and the folds are formed inside, and the length is approximately the same width as the bottom plate. Approximately 80 mm or twice the length through the crease, approximately 160 mm
The additional plate-shaped material 16 consisting of the above is placed on the upper surface of the upper bottom plate 11 and is fixed together by the tape containing the wire core material or the string-shaped material 17, so that the front part of the bottom plate member B is a more multilayered and robust one. Therefore, it can be conveniently constructed so as to supplement the operational effects described below. That is, in carrying out the present invention, the tape or the cord-shaped material 1 containing the wire core material that surrounds the lower surface of the lower bottom plate 12 and projects to the upper surface of the upper bottom plate 11 is implemented.
At least three of the joining edge pieces 5 and 5 and the upper and lower bottom plates, etc., which are sandwiched between the upper and lower bottom plates before the bending prevention of 7 (especially before being fixed by the thin plate-like sealing material 18 made of an arbitrary material), or In addition to this, the folded back extension 13 'in front of the lower bottom plate 12 and other suitable plate-like material or paper piece, etc., the above-mentioned perforation holes (15, 1).
(Corresponding to 5) and an additional plate member 16 having a crease line on its inner side can be appropriately weighted and contacted, and in addition,
A tape containing a wire core material, which makes it possible to easily fix the plate-shaped material or the like having an appropriate protruding body fixed to the front end by weight contact, and all of these are extracted from the two through holes on the left and right of the front part of the bottom plate. Alternatively, it is a method characterized in that it is possible to perform extremely reliable and quick insertion and assembly by means of an insertion stop attachment means using a string-shaped material.

When such an embodiment of the present invention is adopted, an additional plate member that can be opened and closed, in particular, is appropriately pulled up from the fold portion so that memos are surely stored in the opening portion, Since it is possible to store a desired number of similar paper notes (memo notes) inside the back wall 2, it can be used not only as a book stand but also as a memo pincer, etc. It is possible to fold up 16 and fold the extended fold and below vertically downward to form the container portion (not shown). On the upper surface of the upper bottom plate, an additional plate-shaped material 16 which is made up and down by a bending line at the front end is placed, and the tape or cord-shaped material 1 containing the wire core material is placed on this.
The upper and lower bottom plates 11 and 12 and the joint edge pieces 5 and 5 are integrally fixed at the same time by 7 and fixed by
It is possible to reinforce the part that requires the most strength and is convenient for diversifying the functions as described above.
8 has a large size and covers the upper surface of the anti-slip part in a series or separately at the front part, and a decorative sticker is applied to prevent dirt from touching the anti-slip part, and the robustness of the anti-slip part is also increased. It is convenient to let

[0009]

INDUSTRIAL APPLICABILITY The present invention uses a cutting molding method which is extremely advantageous in terms of size as well as when it is cut and formed as a combined set type by using various material plates each having a minimum unit area, and also as a mass production means. Since the main member A and the bottom plate member B are two-part construction, the material to be used can be maximally effectively utilized as compared with the conventional method, and the combination connecting means of both members can be used in the conventional method. At the primary joining portion of the members, that is, at the lower end of the main member A and the end portion corresponding to the rear edge portion in the longitudinal direction of the bottom plate member B, both members are combined as they are without applying any joining means such as sticking and fusing. At the side end inside the bent portion B _{1 at the} rear end of the bottom plate member B folded in two (the heavy contact gap formed by the upper and lower bottom plates), the joining edge piece at the lower end of the side wall 6 that is dividedly formed at the lower end of the main member A By fitting the top of the cut-off end face in a secret manner, the joining edge pieces 5, 5 sandwiched between the upper and lower bottom plates can be fitted and tightened at their joining corner portions 9 with high accuracy. Not only can the assembly be carried out easily, quickly and accurately, but the other ends (front portions) of the joining edge pieces 5, 5 are open spread portions bent from the front 12a of the lower bottom plate 12 between the upper and lower bottom plates 11, 12. 13 'or a suitable additional plate-shaped member 16 is provided with a through hole in the front portion 16', and is firmly fixed at the same time by a penetration stopping means using a tape containing wire metal core material or a string-like member 17. That is, both members A,
B is a bent portion B _{1 at} both sides thereof, that is, at the rear end of the bottom plate member B.
Fitting and abutting are performed on both sides of the closest front portion, and the joined state is always maintained in good condition. In addition, in this case, in the vicinity of the open spreading portion 13 ′ that continues rearward from this portion, which is substantially coincident with the inner side of the anti-slip portion 14 formed on the front edge portion 13 of the lower bottom plate 12. Between the upper and lower bottom plates, the joining edge pieces 5 and 5 are in two points (2) by the tape or the cord-like material 17 containing the wire core material in a state of heavy contact with the extending portions 13 ′ and the like.
In spite of the through holes (individual holes), they can be fixed in contact with each other in multiple layers, and the assembly accuracy can be kept extremely high.

As shown in FIG. 2, the above-mentioned joining means includes the left and right joining edge pieces 5, 5 at the lower ends of the side walls 6, 6 on both sides of the back wall 3 located at the center of the main member A, as shown in FIGS. As shown in the enlarged view of FIG. 5, the lengths of the upper bottom plate 11 and the lower bottom plate 12 formed by folding in half from the substantially central portion (the right end portion shown in FIGS. 5 and 6, that is, the bent portion B _{1 at the} rear end of the bottom plate). It is folded inward at right angles and inserted into the gap (opening) on both sides in the direction.
In this case, when the joining edge piece 5'in the central portion is left uncut, it is placed on the upper surface of the upper bottom plate 11, and if necessary, the trailing edge of the additional plate-like member 16 which is contacted on the upper bottom plate 11 By extending and overlapping the portions 16 ″, the joining edge pieces 5 ′ are prevented from being lifted up, but in some cases, they may be directly attached to the upper surface of the upper bottom plate 11 or by an adhesive tape or the like. Adhesion and the like can be appropriately treated.

When the joint edge pieces 5'at the lower end of the back wall 3 are left as described above, the cut end faces (expanded portions) of the wedge-shaped notch portions 7, 7 which come into contact with the joint portions of the joint edge pieces 5, 5 on both sides thereof. It is convenient that the apex part of the corner can be fitted and contacted with both outer end faces of the bent corners of the upper and lower bottom plates 11 and 12 so as to come into contact with the honey. Since the treatment of the end portion 5a of the above is troublesome, the joining edge pieces 5 are inserted between the upper and lower bottom plates 11 and 12 in the assembly process even if the end portion 5a is removed, and the connecting edge pieces 5 and 5 are formed in the front portions of the upper and lower bottom plates. The perforation holes 15 at the front end portions of the joining edge pieces 5 and 5 corresponding to the installation holes 15 are made to coincide with each other, and are clamped and fixed between the upper and lower bottom plates at this portion, and at the rear portion of the bottom plate, the bottom plate member B Since the lower edge of the back wall 3 is brought into close contact with the bent portion B ₁ when it is formed, The bearing purpose of the book can be achieved without affecting the bearing strength of the book by the ridge lines 2 and 2 on both sides of the back wall. As described above, the joint edge pieces 5 and 5 other than the central joint edge piece 5'are sandwiched in the longitudinal gap between the upper and lower bottom plates 11 and 12, and the front portion of the lower bottom plate 12 is pierced at each front end thereof. Through the perforated hole that overlaps with the hole 15, the layers are overlapped and contacted in a layered manner with or without riding on the upper surface of the open-shaped extended portion 13 ', and are extracted on the upper surface of the upper bottom plate 11 and folded in opposite directions. It is secured by a bendable tape containing a wire core material or a string-like material 17. Thus, the spread portion 13 'of the lower bottom plate 12 may be fitted between the lower bottom plate 12 and the joining edge piece 5 or between the joining edge piece 5 and the upper bottom plate 11, but in short, the joining of the central portion is essential. The joining edge pieces 5 and 5 other than the edge piece 5'correspond to each other when they are fixed between the upper and lower bottom plates 11 and 12 by the wire-cored core-containing tape or the string-like material 17 including the spread portion 13 '. The tape is tightly sandwiched through the provided hole 15 ... At the time of this fastening, the tape or cord 17 containing the wire core material that has risen through the hole 15 from the back surface of the lower bottom plate 12 is erected. Both sides facing each other can be bent inward and easily fixed. As described above, the tape containing the wire metal core material or the string-like material 17, which is the fixing member, is particularly a tape from a flat material in which the wire metal core material is enclosed in a vinyl-like material having a width of approximately 3.5 mm to 4 mm. Therefore, the bent end 17 'can be held in the fixed state as it is, but if necessary, the upper bottom plate 11 is provided with the sealing material 18 made of an arbitrary material having a desired indication on the upper surface thereof. It is a good idea to stick and fix it in a sealed shape over the top surface of the. Note that such fastening and sealing material 1
It is also possible to apply finishing or the like by 8 on the lower surface of the lower bottom plate 12. In addition, the fastening with the tape with the wire core material such as the ridge or the string-like material 17 does not pose a risk of scratching the fingertips etc. in the work of assembling and fastening the two-leg pins, etc., and it is safe and convenient for children. Is.

In short, the method of the present invention is a combination of the separated main member A and bottom plate member B, and the connecting or fixing means, which has been indispensable in the past, is provided at the bottom and rear end portions of each constituent member. Nothing is done, and both members are joined only by a simple fitting means of the relevant part, and finally, at the front portion of both members, at least three pieces on each side are brought into contact with each other through the holes 15, 15. By fastening and fixing using the tape containing the wire core material or the string-like material 17,
If necessary, an additional plate-like material 16 or the like on which necessary items such as a timetable and a schedule table column are appropriately printed through the heavy contact through holes formed in the holes 15 may be a tape or cord-like material containing the same wire core material. By using 17 to fix in a multi-layer overlapping manner, manufacturing can be performed accurately and quickly, and in use, there is a possibility that problems sometimes occur at the front part, especially the anti-slip part 14 and its inner part, Since the multi-layered reinforcement by the attached plate-shaped material 18 etc. is possible, it is a very convenient method because it is possible to rapidly manufacture a robust and aesthetically pleasing one in spite of its simple structure. Due to the simple structure for binding and fixing the composition members such as the ridges, the main body member A and the bottom plate member B can be easily separated only by removing the tape or the cord-shaped member containing the wire core material, and the simple fitting can be performed. In addition to disclosing and acknowledging the state of combination, the restoration can be completed conveniently and swiftly, so that not only children but also ordinary members of society can be interested in the results of the creative respiration. Since the product by the method is easy to handle, it is useful as a tool for lifelong education in the future, such as maintaining a good posture that is the basis of health, as well as being effective in terms of its correctness and reading efficiency. It is a thing.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, in which a main member A having a substantially truncated cone shape with a required fold is provided above a material plate having an area of a B4 plate which is an example of the shape of the material plate. FIG. 9 is a plan view showing a combination member plate formed by cutting and forming a horizontally long bottom plate member B similarly having a required fold below.

FIG. 2 shows an embodiment of the present invention, in which the joint edge pieces on both lower ends of the main body member A are bent at right angles into the gap between the upper and lower bottom plates bent and polymerized for joining the separated members A and B, respectively. It is a perspective view which shows the process in which it bends inward and is inserted and assembled.

FIG. 3 shows an embodiment of the present invention, and is a perspective view of the writing table showing a state in which the assembly by the method of the present invention is completed and the back wall is stood up.

FIG. 4 shows an embodiment of the present invention, and I is a partially cutaway enlarged plan view of a main part showing the standing state of the bookstand after completion of assembly, which is shown by cutting the main part. II is an enlarged cross-sectional view showing the xx portion in the arrow direction.

FIG. 5 shows an embodiment of the present invention and is an enlarged side sectional view of an essential part in a state where a joining edge piece at a lower end of a main member is fitted into an opening gap of upper and lower bottom plates.

FIG. 6 is a partial cutaway view showing an embodiment of the present invention, showing a state in which upper and lower bottom plates are closed and a joint edge piece 5 ′ at the lower end of the standing wall of the main member is placed on the upper surface of the upper bottom plate. It is a sectional side view.

FIG. 7 is a plan view showing an assembly material plate integrally formed for manufacturing a conventional folding bookstand.

[Explanation of symbols]

1 ... Upper edge of main member A 2 ... Fold ridge line 3 ... Back wall
4 ... Bending line 5, 5 ... Joining edge piece 6 ... Side wall 7 ... Wedge-shaped notch
8 ... Gradient end face 9 ... Joint corner part 10 ... Diagonal bending line 11 ... Upper bottom plate 12 ... Lower bottom plate 13 ... Front edge part 13 '... Open spreading part 14 ... Non-slip part 15 ... Drilling hole 16 ... Attached plate-shaped material 17 ... Tape or string-shaped material (tape or string-shaped material containing wire-bar core material) made of vinyl or other material that encloses the wire-bar core material 18 ... Sealing material

Claims (1)

[Claims] 1. A height of about 120 mm to 150 mm and a width of about 65 mm made of a thin plate material such as cardboard or plastics.
~ 85mm from the both edges of the upper edge through the vertical ridge line, the back wall and the side walls of the isosceles triangle connected to the left and right sides of the back wall are divided and formed below the fold line at the lower ends. The side wall and the back wall from a substantially central portion of the sloped end face of the side wall having an inclination angle of about 45 degrees, the whole side other than the connection edge piece having a substantially truncated shape. The lower end of the main member is provided with an oblique bending line that extends over the corners, and separately from this, the two edges of the main member are bent together to fold the joint edge pieces on both sides of the lower end inward at right angles. In the front of the lower bottom plate of the bottom plate member that can be inserted and sandwiched between the bottom plates, an anti-slip portion of an appropriate shape that does not undulate is pre-bent, or a front edge portion where these can be arranged later is formed. , Fold it behind and spread it openly for a long time, or Prepare a bottom plate member that is bent from approximately the center of the remaining length to form a double bottom, and fold it in two from the center to form the longitudinal direction between the upper and lower bottom plates. From both sides, flatten the main member [External 1] The main body member is bent at a right angle, the opposite side edges of the left and right side walls of the main body member are inwardly folded at right angles, and inserted into the front side portion between the upper and lower bottom plates to correspond to the hole provided at the front end portion of the joint edge piece. Forming through holes in which the drilled holes of the upper and lower bottom plates coincide, the joining edge pieces are sandwiched between these upper and lower bottom plates with a tape or string-like material made of vinyl or other material enclosing the wire core material, At least these shall be fixed in contact with the desired multi-layered structure together with a three-layered or additional plate-shaped material, etc., if necessary, with a suitable number of perforations on the bent edges, or with a thin plate made of any material not having this A method of manufacturing a folding book stand, characterized in that the sealing material is fitted or stuck and fixed to enable simple and quick assembly.