JP2000309192A - Draft frame-cum-drawing board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method to fix a drawing paper on a drawing board, and a ruler which is used for the drawing board so that even a housewife or the like can easily prepare a proposal, an application or a report document including a figure and a chart on a table at home, on the contrary to the present current of the development of drawing apparatus which become heavier, more specialized and more specified. SOLUTION: In order to fix a drawing paper, a protruding section 3 is provided on a drawing board base 1, and on the rear side of a frame 2 which holds the drawing paper, a recess 4 which corresponds with and meets the protruding section provided on the drawing board base, is provided, and by press-bonding with a metal fitting 5, the drawing paper is fixed so that the drawing paper may not move or slip. Also, by providing the frame on the four edges, a triangle ruler of which the usability is unfavorable is eliminated, and a square flat perforated plate type ruler of which the usability is favorable, and which can be used for multiple purposes is used.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION [0001] The present invention relates to a drafting tool used for designing, drawing, and explaining all kinds of articles and articles.

[Prior Art] Since the Meiji era, drawing tools have been made using drafting ships and T rulers, triangular rulers, karaguchi and ink, paperweights and thumbtacks for fixing paper, which have been transmitted from abroad. . Even at this time, the tableware on the table between the teas in the house was cleared and the drafting ship and accessories were assembled and drawn, so that it was easy to clean up as soon as it was finished, as well as during the drawing. . It was a special task. Since the end of the war, the performance and design of drafting equipment have been significantly improved. Especially recently, the drafting method, drafting supplies and design supplies have been systematized. Each company calls this process a creative drafting system that considers this work as a total balance, leaving the precise work to CAD, and creating new ideas with a drafting machine that supports the balance between creativity and efficiency, a trace table with drafting head, Fully equipped with lighting books and the like, and the results are being measured. For this reason, the space for installing these drafting systems is not a corner of the previous office room, but a large-scale device such as a dedicated drafting room. With regard to drafting tools, he emphasizes his expertise and makes drafting work more and more special. For ordinary people, housewives, school students, etc. who do not work in drafting, clean up the dining table or arrange on the study desk for drafting, recent drafting tools will save weight, secure space, and cost. It is more difficult than ever.

[Problems to be solved by the invention]
Each manufacturer produces and sells small-sized drawings that are suitable for use by ordinary people, housewives, and school students. It is the present situation that we are struggling with. The general public and housewives, many of the school students standard version _B 4 B5,
A4 is mostly used. It is used for contributing documents including charts distributed by neighborhood associations and local organizations, newsletters from culture, sports, and hobby clubs, as well as reports and applications to government agencies. On the other hand, students are school homework, school class newspapers, reports on club activities, proposal documents, etc. Many of them are documents including drawings and diagrams. Also, considering that the place where the drawing board is used is mostly a tea room in the home or a dining kitchen, the drawing board must be small and light, the method of fixing the paper must be simple, and the accessories must be small and light. Easy preparation for drafting work and existing home lighting should be sufficient. Considering that there are infants at home, there should be no danger and strength. Be able to easily clean up during work. It is also an issue to provide a function for easily writing text in a drawing.

[Means for Solving the Problems] The first problem is how to fix the paper. When considering this, you must consider the quality of the paper. The paper used is seldom Kent paper, and there are some high-quality papers and papers with weak paper quality at all times. Tapes cannot be used due to their cohesiveness and the ability to tear the paper at all times. Next, the use of a magnetic board, a magnetic sheet, or a magnetic plate using a magnetic metal does not allow this method because the drawing board of the present invention may have transparency. It is out of the question how to stab a thumbtack to fix the paper, because even cardboard cannot stab hard. The standard of paper used is B5, B4, A4 and A3 at most, so a small T ruler and 25 types of triangular rulers cover the entire paper area without using a drafting machine, parallel ruler and drafting head. I do. The method of fixing this paper was that before, during, and after the war, drafting of school homework used a picture frame at home. He removed the glass and the picture, made a mask with cardboard according to the paper, put the paper in, put the back cover, turned it back, and attached the cardboard with the thumbtack to draw. Now, each side is 5
By cutting a plywood board approximately four centimeters large and mounting four T-shaped rulers on each side, even a triangular ruler can be used to draw parallel and vertical lines over the entire area of the paper if used repeatedly. Therefore, the head portion of the T-shaped ruler is removed, assembled in a frame shape, overlapped with the paper so that the paper does not move, and fixed with screws or the like, whereby the paper is also fixed. In this method, the paper is pressed with screws, and the paper is fixed by heavy pressure and friction between the plate and the paper.
After that, the paper can be easily loaded and devised so that it can be easily removed. As described above, if you use a square ruler rather than a triangle ruler to draw in this frame, you can draw a straight line with a little movement, and there is no need to twist it. In addition, if this square ruler is devised, the text can be neatly and easily written in the drawing.

[Embodiment of the Invention] On the surface of a drafting board,
Provide concave or convex parts to prevent the paper from moving or shifting. It also serves as a guide for placing paper on the drawing board surface.
Next, a ruler with the head part of the T-shaped ruler removed, or a ruler that replaces the ruler, is formed in a square frame, for example, a frame, and the back of this frame corresponds to the concave and convex portions made on the surface of the drawing board. Matching projections and depressions are provided, and the width of the frame is overlapped so that the inside of the frame covers the paper so that the paper does not rise or turn over. The frame is pressed against the drafting board with a hinge or clasp clip. The sum of the width of the paper to be superimposed on the frame and the width of the peripheral edge of the square plate ruler becomes the margin of the drawing. The method of connecting the drafting board and the holding frame may be an inset fixing method or an inset fixing method. When a large or deformed template or a large cloud ruler is used in many cases, the frame is not formed into a rectangular frame, but is divided into two L-shaped, two U-shaped, and four divided, and each is fixed to a drawing board. The square plate ruler according to the second aspect of the present invention, which exhibits its function when used in the drawing board with a frame of the present invention, can quickly and horizontally draw a horizontal and vertical line over the entire area of the paper by simply moving the ruler without twisting. In addition, if the purpose of drafting is to include printed materials such as magazines or documents for submitting applications for various government offices, and that include drawings and charts, the margins, number of lines, line spacing, number of characters, and character spacing are specified in boxes. By placing the required scale on each part of the dish ruler, it is possible to easily and neatly produce documents that meet the requirements. In general, this is effective when the manuscript is placed on the underlay and characters are written through it, but cannot be seen through due to the paper used. The same applies to a grid chart and a vertical-line 20-line 400-character package. If the drawing board is made of a translucent material, it can be used as a trace board using a dedicated light source box or a commercially available writing book. Similarly, if the light source of the liquid crystal panel is incorporated in the drawing board, it can also be used as a trace board.

[Effects of the Invention] Although it is a light drafting board which also serves as a document frame by a collection of primitive mechanisms which are completely opposite to the current drafting method, improvement of the drafting equipment, a method of progress, and direction. The following effects can be seen. No tools are needed to secure the paper when using the drafting board, and most other auxiliary equipment is almost unnecessary. Basically, a square plate ruler, pencil,
Eraser, drafting pen, compass, if necessary, protractor, template, triangle ruler, etc. The weight of the drawing board is 50
It is on the order of 0 to 1 kilogram. Even in a general household where the drawing board body is light and easy to handle, and there is no space for drafting, the drafting tools can be easily prepared by clearing the table or study desk and the work can be started. In addition, the use of a square ruler makes it easy to write text following a figure, or to lay out designs, charts, and drawings in a text, and work efficiently. As a result, it is easier to clean up and less criticized by the family. For the above reasons, if you try not only ordinary people, but also family women who are not good at drafting and who are not good at documenting their opinions, you can get your proposal report document to the neighborhood association and the local community. However, by including designs, charts, and drawings, it is easy to understand the documents, discovering that they are realistic and persuasive, making it fun to participate in social activities, and making the local community more livable. Similarly, school students can enjoy school life with confidence in proposals and reports on school class newspapers and club activities. This is also one of the effects.

[Brief description of the drawings]

FIG. 1 is a plan view of a drawing board of the present invention fully opened, and a right view is a perspective view of a drawing board partially closed.

FIG. 2 is a cross-sectional view showing a convex portion of a drafting board base and a concave portion of a holding frame.

FIG. 3 shows four examples of a square plate-shaped ruler.

[Explanation of symbols]

1 is a drafting board stand, 2 is a holding frame, 3 is a convex portion, 4 is a concave portion, 5
Is a clasp, 6 is a hinge, 7 and 8 are horizontal and vertical 4
The square plate rulers 9 and 10 are hatched square rulers.

Claims (2)

[Claims] 1. A drawing board having a structure in which projections and depressions are provided on a surface of the drawing board, and irregularities are provided on a back surface of a frame for holding a sheet placed on the drawing board so as to correspond to the projections and depressions of the drawing board. 2. When drawing a parallel line, a vertical line, or a diagonal line on a sheet of paper using the drawing board according to claim 1, the margins, the number of lines,
A square plate ruler used when line spacing, number of characters, and character spacing are specified and regulated.