JPH07314992A - Equipment used for enlargement of small rough sketch - Google Patents

Abstract

PURPOSE:To copy an enlarged drawing accurately by printing exactly ruled squares on a transparent plastic film and placing it on a small rough sketch. CONSTITUTION:A maker point 3 is printed at every fifth square on a transparent plastic sheet in order to prevent a ruled square 2 obtained by drawing a line vertically and horizontally from being confused with a line. A required number of similar frame 4 to be enlarged in accordance with a standard are printed with the squares 2 and the points 3. The transparent plastic sheet with the printed squares is bonded to an oppositely positioned transparent plastic sheet of the same size as the former by the adjacent two sides. In addition, the sheets 7, 8 of different square size and frame standard are bonded by the three sides at a mutually opposite position. After that, a thread 10 is spread vertically and horizontally on the frame adjacent to the outer side of a standard canvass so that similar squares to those on the sheet to be applied to a small rough sketch are obtained. Next, four pieces of plate which become a frame are connected together by a hinge 11 and the thread 10 is spready vertically and horizontally so that the square corresponding to the square of the sheet is formed. Thus it is possible to copy an exactly enlarged drawing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device used for enlarging a small figure.

[0002]

2. Description of the Related Art Conventionally, when enlarging a small figure to make a large figure, a straight line is drawn on the small figure to write a grid, and a line similar to the grid in the small figure is drawn on the paper that becomes the big figure. It was used as an auxiliary line and a picture was taken. In addition, a method is also used in which slides and original images are projected on a paper as shown in the figure below in the manner of a magical lantern, and the image is traced.

[0003]

In the conventional method of drawing a line in the figure below, since it is a manual work, it may not be possible to draw lines at equal intervals, and the more precise the accuracy, the finer the meshes. It takes a lot of work to draw many lines in order to make. In addition, there is a drawback that the following figure is ruined by drawing a line. In addition, since the lens is used in the type of Gentoki, there is a problem that the distortion is inevitably generated toward the periphery and the price is relatively high.

The present invention has been made in view of the above-mentioned problems of the prior art, and the object thereof is not to write accurate grids on the screen which should be the small figure or the large figure one by one. , To provide a device for copying a more accurate enlarged view.

[0005]

In order to achieve the above-mentioned object, the magnifying device of the present invention is designed such that an accurate mesh is first imprinted on a transparent plastic, and the plastic is placed on the small figure to draw a line on the small figure. Instead of pulling.

Further, in order to simplify the determination of the size when a line similar to the grid is drawn in the large-scale drawing, the size of the mesh to be drawn in the large-scale drawing is assumed, and the solid-printed grid is preliminarily printed on the transparent plastic. May be standardized at a fixed ratio, and the shape of the number that should be the lower diagram may be imprinted together with the grid as a frame at the same ratio.

Further, when a sheet is applied to the small figure, it is necessary to take measures such as fastening it with tape on the plate so that the sheet and the small figure do not shift. Therefore, in order to omit that measure, a sheet and a slightly tough plastic plate of the same size as the sheet are faced to each other and the adjacent two or three sides are glued to form a card case, and the small figure is sandwiched between them. May be.

[0008] A sheet having different sizes of meshes or different frame ratios may be provided on both sides so that the images can be used properly depending on the density of the image shown in the lower figure to be enlarged and the number of issues to be enlarged.

On the other hand, the canvas or panel to be enlarged is covered with a frame that fits or fits like a forehead, and threads are laid vertically and horizontally at equal intervals to replace the squares on the paper or canvas. You can

The frame may be folded in the direction of a parallelogram.

[0011]

[Function] Attach the sheet with the mesh imprinted on it to the figure below and fix it with tape. Or put the figure below in a case imprinted with mesh.

A frame in which threads are stretched vertically and horizontally is put on a canvas or a panel on which paper is stuck. After that, while comparing the image of the small figure with the sheet attached or the case of the small figure put in a case, the image of the small figure is copied to form a similar figure.

[0013]

EXAMPLES Examples will be described with reference to the drawings.
In FIG. 1, a grid (2) formed by drawing lines in the vertical and horizontal directions on a transparent plastic sheet (1) and a mark point (3) are imprinted on every fifth line, for example, in order to avoid confusion of lines.

In FIG. 2, a frame (4) having a similar shape to the standard number to be enlarged is imprinted together with the grid (2) and the dot (3).

In FIG. 3, a transparent plastic sheet (5) on which a mesh is imprinted and a transparent plastic plate (6) of the same size are opposed to each other, and two adjacent sides are bonded.

In FIG. 4, sheets (7) and (8) having different mesh sizes and different frame specifications are faced to each other and three sides are bonded.

In FIG. 5, a thread (10) is stretched in the vertical and horizontal directions in a frame (9) in contact with the outside of a standard canvas or panel so as to be similar to the mesh of the case where the sheet or the lower figure is put.

In FIG. 6, four plates serving as a frame are connected by a hinge (11), and a thread (10) is stretched lengthwise and crosswise so as to form a mesh corresponding to a mesh of a sheet or a case.

[0019]

Since the present invention is configured as described above, it has the following effects.

By applying a transparent plastic sheet imprinted with squares to the figure below, in a moment, it becomes the same state as when the cells were drawn into the figure below, and since it can be used as many times as you like with one sheet, you can put the troublesome meshes in place. It saves you the trouble of writing in, and does not stain the figure below.

By printing a frame having a similar shape of the number to be enlarged together with the grid, it is possible to facilitate the work when trimming the lower figure.

By forming a transparent plastic sheet with a mesh imprinted into a card case shape, it is fixed only by sandwiching the small figure below, and it is not necessary to fix it with tape or the like.

By combining two sheets having different mesh sizes or different frame specifications to form a card case, the size of the image shown in the small figure below or the size to be enlarged
Can be used properly in one case.

[0024] By covering a canvas or a panel on which paper is pasted with a frame in which threads are stretched vertically and horizontally so as to form a similar pattern of a sheet or case in which a frame having a similar shape to the number to be enlarged is imprinted, Then, it will be in the same state as if you entered the grid on the canvas or paper, and you can use it again and again with one piece, so you can save the trouble of writing the troublesome grid, and on the canvas or the paper of the Omae diagram, It does not leave unneeded or rather disturbing meshes after copying.

Further, by folding the frame, it becomes easier to store the frame when not in use.

[Brief description of drawings]

FIG. 1 is a plan view of a transparent plastic sheet on which a mesh is imprinted.

FIG. 2 is a plan view of a transparent plastic sheet on which a frame is imprinted with a mesh.

[Figure 3] A transparent plastic sheet imprinted with grids,
It is a figure which shows the structure of the small lower figure case which made the transparent plastic plate of the same size face each other, and adjoined two adjacent sides.

FIG. 4 is a diagram showing a structure of a small case shown in FIG. 4 in which sheets having different mesh sizes and frame specifications are faced to each other and three sides are adhered.

FIG. 5 is a view of a frame that is in contact with the outside of a standard canvas or panel in which threads are stretched horizontally and vertically so as to be similar to the mesh of the sheet to be attached to the small figure or the case where the small figure is inserted.

FIG. 6 is a diagram of a frame in which a string is stretched so as to be able to be folded during prayer folding.

Claims (6)

[Claims] 1. A transparent plastic sheet imprinted with grids (2) such as graph paper. 2. The sheet according to claim 1, wherein a frame (4) similar to the number of the standard to be expanded is also imprinted. 3. The sheet (5) according to claim 1 or 2, and a transparent plastic plate (6) of the same size as the sheet (5).
A case shown in the figure below, where the two sides or the three sides adjacent to each other are bonded to each other. 4. The small-diagram case according to claim 3, wherein the sheets (7) and (8) according to claim 1 or claim 2 having different mesh sizes or different frame standards are provided. 5. A frame having a standard number size in which threads (10) are stretched lengthwise and widthwise so as to form a mesh similar to the mesh of the sheet of claim 2 or the case of claims 3 and 4. 6. The frame according to claim 5, wherein the frame is foldable.