Graph paper

Abstract

This product provides graph paper that can contribute to drawing graphs and other diagrams faster, more accurately, and with a more natural feel. [Solution] The leftmost and lowest intersection point 1000 of the multiple intersection points of the horizontal dividing line 100 and the vertical dividing line 200 is not in the same location as the lower left corner 2000 of the grid area 20, but is shifted above the bottom line 500 of the grid area 20, and is shifted to the right of the leftmost line 600 of the grid area 20.

Description

Technical Field

[0001] The present invention relates to graph paper as a writing medium on which characters, figures, etc. can be written.

Background Art

[0002] Graph paper is used to draw graphs such as line graphs, bar graphs, histograms, etc. and to plot scatter diagrams, etc. In general graph paper, there is a plain white margin area on the outer periphery, and inside that, there is a rectangular grid area drawn with horizontal and vertical equally spaced parallel lines with a thickness and color that do not interfere with writing graphs, etc. Users can draw graphs, etc. using the grid in that grid area as a guide.

Summary of the Invention

Problems to be Solved by the Invention

[0003] In high school and university classes, students are taught to draw graphs, etc. within the grid area of graph paper, and this way of drawing graphs has become a practical standard (for example, refer to the high school industrial science textbook "Industrial Information Mathematics (Jitsukyo Shuppan)" p266, and the graph drawing method on the "Tohoku University Natural Science Comprehensive Experiment web page"). Outside the grid area of graph paper, there is a margin area, but it is required to write the axis names, scale values, etc. in the grid area rather than in the margin area. However, in conventional graph paper, since the division lines described later do not start from the origin of the graph to be drawn and are not equally spaced, many students and working people take a long time, make mistakes, or feel uncomfortable when drawing graphs.

[0004] An object of the present invention is to provide graph paper that can contribute to drawing graphs, etc. faster, more accurately, and without discomfort.

Means for Solving the Problems

[0005] According to an aspect of the present invention, arranged side by side in the left - right direction , all of the same lengthA plurality of vertical lines and a plurality of horizontal lines arranged vertically and horizontally , all of the same length drawn with multiple a rectangle It was spread all over the place. a grid area and a margin area provided on the outer periphery of the grid area, comprising The plurality of vertical lines include a plurality of first vertical lines drawn with a line thickness a and a plurality of vertical dividing lines drawn with a line thickness b (a < b). Among the plurality of vertical dividing lines, a part of the plurality of first vertical lines is located between two adjacent vertical dividing lines respectively. The plurality of horizontal lines include a plurality of first horizontal lines drawn with a line thickness a and a plurality of horizontal dividing lines drawn with a line thickness b (a < b). Among the plurality of horizontal dividing lines, a part of the plurality of first horizontal lines is located between two adjacent horizontal dividing lines respectively. The boundary between the left end of the grid area and the margin area Removing the aforementioned multiple vertical dividing lines is defined by the leftmost line, which is the leftmost of the plurality of vertical lines. The boundary between the lower end of the grid area and the margin area Removing the aforementioned multiple horizontal dividing lines is defined by the lowermost line, which is the lowermost of the plurality of horizontal lines. The intersection of the leftmost first vertical dividing line among the plurality of vertical dividing lines and the lowermost first horizontal dividing line among the plurality of horizontal dividing lines is located above and to the right of the intersection of the leftmost line and the lowermost line. The distance between the first vertical dividing line and the leftmost line is shorter than the distance between the second vertical dividing line, which is the second from the left among the plurality of vertical dividing lines, and the first vertical dividing line. The distance between the first horizontal dividing line and the lowermost line is shorter than the distance between the second horizontal dividing line, which is the second from the bottom among the plurality of horizontal dividing lines, and the first horizontal dividing line. A graph paper is provided, which is characterized in this way.

Advantages of the Invention

[0006] In the graph paper of the present invention, the intersection point of the leftmost first vertical dividing line among the multiple vertical dividing lines and the bottommost first horizontal dividing line among the multiple horizontal dividing lines is not in the same place as the bottom left corner of the grid area, but is shifted above the bottom line of the grid area and to the right of the leftmost line of the grid area. Therefore, even when the user draws the vertical and horizontal axes of the graph with the above intersection point as the origin, space can be secured to the left of the vertical axis and below the horizontal axis of the graph. In other words, the user can draw the vertical axis of the graph along the leftmost first vertical dividing line and the horizontal axis of the graph along the bottommost first horizontal dividing line. This allows the user to intuitively draw the axes of the graph. Even in this case, space can be secured to the left of the vertical axis of the graph drawn in the grid area and space can be secured below the horizontal axis of the graph. Therefore, the user can easily write axis names and scale values ​​in these spaces. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 is a schematic diagram illustrating the graph paper 1 of this embodiment. [Figure 2] Figure 2 is a schematic diagram showing an enlarged portion of graph paper 1. [Figure 3] Figure 3 is a diagram equivalent to Figure 2, showing a configuration in which the bottom line 500 and the leftmost line 600 are drawn as straight lines thicker than thickness a. [Figure 4] Figure 4 is a diagram equivalent to Figure 2, showing a configuration in which a scale with a "0" mark indicating the origin and scales along the first horizontal dividing line 101 and the first vertical dividing line 201 are provided. [Modes for carrying out the invention]

[0008] An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a graph paper 1 which is a writing medium according to this embodiment. The graph paper 1 can be used as a single writing paper. Of course, even if a plurality of graph papers 1 are bound so as to be peelable like general memo papers, or each page of the graph paper 1 is bound so as not to be detached like general notebooks such as spiral-bound notebooks, thread-bound notebooks, ring notebooks, etc., it does not matter.

[0009] As shown in FIG. 1, on the surface of the graph paper 1, there is a plain margin area 10 in the outer peripheral part, and inside it, there is a rectangular grid area 20 drawn by a plurality of horizontal lines 20a arranged at equal intervals in the vertical direction and a plurality of vertical lines 20b arranged at equal intervals in the horizontal direction. The plurality of horizontal lines 20a and the plurality of vertical lines 20b are drawn as straight lines with a thickness a. The grid formed by two adjacent horizontal lines 20a and two adjacent vertical lines 20b is the smallest grid (referred to as a unit grid) drawn in the grid area 20. The plurality of horizontal lines 20a is an example of the first horizontal line of the present invention, and the plurality of vertical lines 20b is an example of the first vertical line of the present invention.

[0010] In the grid area 20, a plurality of horizontal dividing lines 100 and vertical dividing lines 200 with a thickness b (a < b) for dividing a plurality of unit grids are drawn. The grid formed by two adjacent horizontal dividing lines 100 and two adjacent vertical dividing lines 200 includes a plurality of unit grids. Among the plurality of horizontal dividing lines 100, the lowermost horizontal dividing line 100 is called the first horizontal dividing line 101, and the second horizontal dividing line 100 from the bottom is called the second horizontal dividing line 102. Among the plurality of vertical dividing lines 200, the leftmost vertical dividing line 200 is called the first vertical dividing line 201, and the second vertical dividing line 200 from the left is called the second vertical dividing line 202. Note that the plurality of horizontal lines 10a and the plurality of horizontal dividing lines 100 correspond to the "plurality of horizontal lines" of the present invention. The plurality of vertical lines 20b and the plurality of vertical dividing lines 200 correspond to the "plurality of vertical lines" of the present invention.

[0011] The horizontal line 20a located at the bottom of the grid area 20 is called the bottom line 500 (see Figure 2). The vertical line 20b located at the leftmost position of the grid area 20 is called the leftmost line 600 (see Figure 2). The bottom line 500 and the leftmost line 600 form part of the boundary line between the grid area 20 and the margin area 10. In this embodiment, both the bottom line 500 and the leftmost line 600 are drawn as straight lines of thickness a. The intersection of the bottom line 500 and the leftmost line 600 is located at the lower left edge of the grid area 20, and in this specification, it is referred to as the lower left corner 2000.

[0012] As shown in Figure 2, the intersection point 1000 of the first horizontal dividing line 101 and the first vertical dividing line 201 is not in the same location as the lower left corner 2000 of the grid area 20, but is shifted above the bottom line 500 of the grid area 20, and also shifted to the right of the leftmost line 600 of the grid area 20. Furthermore, the distance between the bottom line 500 and the first horizontal dividing line 101 is shorter than the distance between the first horizontal dividing line 101 and the second horizontal dividing line 102. The distance between the leftmost line 600 and the first vertical dividing line 201 is shorter than the distance between the first vertical dividing line 201 and the second vertical dividing line 202.

[0013] <Effects of the Embodiment> In conventional graph paper, the origin is the bottom-left corner of the grid area, and multiple dividing lines that separate multiple grid squares are drawn horizontally and vertically at equal intervals with a thickness and color more noticeable than the smallest grid line. In conventional graph paper, the intersection of the bottommost dividing line and the leftmost dividing line coincides with the bottom-left corner of the grid area. Also, in conventional graph paper, the leftmost dividing line and the bottommost dividing line serve as the boundary between the grid area and the margin area. Therefore, the distance between the boundary between the grid area and the margin area and the dividing line closest to the boundary is equal to the distance between two adjacent dividing lines. Such dividing lines in conventional graph paper are not always suitable when the entire graph must fit within the grid area. The reasons for this will be explained below.

[0014] When drawing a graph, a vertical and horizontal axis are essential. The axes must be drawn around the outer perimeter of the graph, and the axis names and scale values ​​must be written outside of them. In such cases, the vertical and horizontal axes must be redrawn within a different grid area, separate from the dividing lines, to create space for the axis names and scale values. This means that the equally spaced dividing lines do not function effectively as a guide when drawing the vertical and horizontal axes of the graph.

[0015] In contrast, in this embodiment, the leftmost and lowest intersection point 1000 of the multiple intersection points of the horizontal dividing line 100 and the vertical dividing line 200 is not located at the same place as the lower left corner 2000 of the grid area 20, but is shifted above the bottom line 500 of the grid area 20 and to the right of the leftmost line 600 of the grid area 20. Therefore, even when the user draws the vertical and horizontal axes of the graph with intersection point 1000 as the origin, space can be secured to the left of the vertical axis and below the horizontal axis of the graph. In other words, the user can draw the vertical axis of the graph along the leftmost vertical dividing line 200 and the horizontal axis of the graph along the bottommost horizontal dividing line 100. This allows the user to intuitively draw the axes of the graph. Even in this case, space can be secured to the left of the vertical axis of the graph drawn in the grid area 20, and space can be secured below the horizontal axis of the graph. Therefore, users can easily write axis names and scale values ​​in these spaces. When the vertical and horizontal axes of the graph are drawn with the intersection point 1000 as the origin, it is preferable to ensure that there is sufficient space to write axis names and scale values ​​to the left of the vertical axis and below the horizontal axis of the graph. From this viewpoint, it is preferable that the intersection point 1000 is located at a position shifted at least 1.5 cm above the bottom line 500 of the grid area 20, and at least 1.5 cm to the right of the leftmost line 600 of the grid area 20.

[0016] Note that the present invention is not limited to the above-described embodiments and can be modified without departing from the spirit of the present invention. For example, the vertical dividing line and the horizontal dividing line do not necessarily have to be of only one type. For example, two types of vertical dividing lines and horizontal dividing lines may be drawn. For example, on graph paper 1, when a 1 mm grid is drawn by horizontal and vertical lines of thickness a, a 5 mm grid may be drawn by horizontal and vertical dividing lines of thickness b (b > a), and a 10 mm grid may be drawn by horizontal and vertical dividing lines of thickness c (c > b).

[0017] In the above embodiment, the bottom line 500 and the leftmost line 600 were both drawn as straight lines having the same thickness (thickness a) as the plurality of horizontal lines 20a and the plurality of vertical lines 20b. However, the present invention is not limited to such an aspect. The bottom line 500 and the leftmost line 600 may both be drawn as straight lines thicker than thickness a. For example, the bottom line 500 and the leftmost line 600 may both be drawn as straight lines having the same thickness (thickness b) as the horizontal dividing line 100 and the vertical dividing line 200, or may be drawn as straight lines thicker than thickness b. As shown in FIG. 3, when the bottom line 500 and the leftmost line 6 are both drawn as straight lines thicker than thickness a, the boundary of the grid area 20 can be made prominent, and the user can easily grasp the range of the grid area 20.

[0018] As shown in FIG. 4, a scale mark of "0" indicating the origin may be provided at the position of the intersection 1000 of the first horizontal dividing line 101 and the first vertical dividing line 201. And scales may be provided along the first horizontal dividing line 101 and the first vertical dividing line 201. Note that these scale marks may be displayed in a small font. When such scale marks are provided, the user can refer to these scale marks when drawing the vertical and horizontal axes of the graph so that the intersection 1000 is the origin, making it easier to create the graph.

[0019] In the above embodiment, the grid drawn in the grid area 20 was a square grid such as a 5 mm grid or a 10 mm grid. However, the present invention is not limited to a square grid. For example, the present invention can also be applied to a semi-logarithmic grid or a double-logarithmic grid.

Explanation of Signs

[0020] 1 Graph paper 10 Margin area 20 Grid area 20a Horizontal line 20b Vertical line 100 Horizontal dividing line 200 Vertical dividing line 500 Bottom line 600 Leftmost line 1000 Intersection point 2000 Lower left corner

Claims

1. A grid area is tiled with multiple rectangles drawn by multiple vertical lines of equal length arranged horizontally and multiple horizontal lines of equal length arranged vertically. The grid area comprises a margin area provided on the outer periphery of the grid area, The plurality of vertical lines comprises a plurality of first vertical lines drawn with line thickness a and a plurality of vertical dividing lines drawn with line thickness b (a < b), wherein a portion of the plurality of first vertical lines is located between two adjacent vertical dividing lines. The plurality of horizontal lines comprises a plurality of first horizontal lines drawn with line thickness a and a plurality of horizontal dividing lines drawn with line thickness b (a < b), and a portion of the plurality of first horizontal lines is located between two adjacent horizontal dividing lines. The boundary between the left edge of the grid area and the margin area is defined by the leftmost line among the multiple vertical lines excluding the multiple vertical dividing lines. The boundary between the lower edge of the grid area and the margin area is defined by the lowest line among the multiple horizontal lines excluding the multiple horizontal dividing lines. The intersection point of the leftmost first vertical dividing line among the plurality of vertical dividing lines and the bottommost first horizontal dividing line among the plurality of horizontal dividing lines is located above and to the right of the intersection point of the leftmost line and the bottommost line. The distance between the first vertical dividing line and the leftmost line is shorter than the distance between the second vertical dividing line, which is the second vertical dividing line from the left among the plurality of vertical dividing lines, and the first vertical dividing line. Graph paper characterized in that the distance between the first horizontal dividing line and the bottom line is shorter than the distance between the second horizontal dividing line, which is the second from the bottom among the plurality of horizontal dividing lines, and the first horizontal dividing line.

2. The graph paper according to claim 1, wherein the thickness of the leftmost line and the bottommost line is greater than the thickness a.

3. The graph paper according to claim 1 or 2, which includes a scale indicating the origin at the intersection of the first horizontal dividing line and the first vertical dividing line, and scales along the first horizontal dividing line and the first vertical dividing line.

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