Pencil

Abstract

Provided is a simple and novel pencil that is easy to hold and conforms to the hand and fingers, bringing ease of writing or drawing to the user and enhancing the learning efficiency of preschool children, elementary school students, college students, or graduate students, as well as the learning efficiency and work efficiency of working people. 【Solution means】The longitudinal cross-sectional shape of the shaft body of the pencil is a shape that is point-symmetrical with respect to the center of the cross-section, and is a cone shape that changes at a certain ratio, and the cross-sectional shape is substantially similar to the cross-sectional shape of the bottom surface of the shaft body.

Description

Technical Field

[0001] The present invention relates to a pencil having a core and a shaft surrounding the core.

Background Art

[0002] Conventionally, there are pencils that improve the stability and grip feeling of pencils. For example, a pencil having a depression for easy gripping (hereinafter referred to as a "depression pencil") is known in Patent Document 1. In these depression pencils, for example, a gripping depression cut into a spherical shape is provided so that they fit gently on the hand and fingers and are partially spherical. For some users, such depressions may hinder the ease of writing or drawing.

[0003] When a gripping depression is provided in a pencil, in the region around the gripping depression, the shaft portion of the cross section perpendicular to the longitudinal axis of the pencil decreases, so the strength of the pencil tends to weaken. Due to the decrease in the strength of the pencil, the stability of the pencil decreases, so for the user, the ease of writing or drawing with the pencil may decrease.

[0004] If preschool children or lower elementary school children who are starting to learn get used to using overly characteristic pencils such as depression pencils, they will no longer be suitable for using pencils of a general shape, and there is a possibility that learning opportunities will be hindered.

[0005] Against this background, the emergence of a simple and new pencil that is different from the depression pencil, easier to grip, more familiar to the hand and fingers, has good usability, and is easy to write or draw is expected.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] The present invention has been made in view of the above circumstances, and an object thereof is to provide a pencil that is easy for a user to write or draw, is gentle to the hand and easy to handle, and can improve learning efficiency and work efficiency.

[0008] The main object of the present invention is to improve learning efficiency by allowing elementary school students to high school students to learn with free ideas when learning. With the advent of the Internet society, the learning method of elementary school students to high school students by searching on a notebook computer or the like and inputting into a notebook computer has increased, and the opportunity to write or draw by hand has decreased. In this social environment, an object of the present invention is to provide a pencil for elementary school students to high school students to efficiently learn while feeling the pleasure of writing or drawing by hand.

[0009] When preschool children, elementary school students, and high school students learn, it is most desirable to learn according to their respective personalities. Therefore, instead of a pencil with a uniform thickness and shape, a pencil that allows various ways of holding the pencil suitable for one's own personality is desired.

Means for Solving the Problems

[0010] An object of the present invention is a pencil characterized in that the stability and the feel of holding of the pencil are improved, and the cross-sectional shape perpendicular to the longitudinal axis of the shaft body changes at a certain ratio along the longitudinal axis of the pencil, and it is possible to learn and work efficiently from children to adults.

[0011] The cross-sectional shape of the pencil in the longitudinal axis direction is not particularly limited as long as it is a symmetric shape such as a general circular shape or a regular hexagonal shape, and the cross-sectional center For a line segment passing through, a dashed line approximately is a symmetric shape.

[0012] The shaft body is preferably made of wood.

[0013] When the shaft body is made of wood, the paint on the surface of the shaft body is preferably paint that can feel the texture of wood as much as possible.

[0014] The present invention is applicable not only to graphite cores but also to colored pencils and the like.

[0015] When sharpening the pencil according to the present invention, since the cross-sectional shape of the shaft body at the part to be sharpened is substantially the same, cutting with a pencil sharpener can be performed without problems.

Advantages of the Invention

[0016] According to the present invention, due to the cross-sectional shape of the shaft body in the longitudinal axis direction that changes at a certain ratio, it is easy to hold, conforms to the hand and fingers, and the thickness of the pencil becomes a shape that is slightly different each time the pencil is sharpened, so that a user can use it while feeling a sense of freshness, and a new pencil can be realized.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Modes for Carrying Out the Invention

[0018] An embodiment of the present invention will be described with reference to the drawings. Specific examples of the embodiments of the present invention are not limited to the following embodiments and examples. Also, for easier understanding, the same parts and members in the drawings are given the same numbers.

[0019] Figures 1 and 2 show the pencil according to this embodiment. Fig. 1(a) shows a perspective view of this embodiment, and Fig. 1(b) shows an enlarged front view. Figs. 2(c) and (d) show side views, and (e) shows a cross-sectional view. In this embodiment, since the cross-sectional shape in the longitudinal axis direction decreases at a constant rate in the direction in which the core is shaved and exposed, it is a shape that is easy to get used to in the hand and fingers.

[0020] Specific configurations of other parts can be variously modified without departing from the gist of the present invention.

Example

[0021] Example 1 As an example, Example 1 of the present invention will be described with reference to the drawings. Figures 3 and 4 show the pencil according to Example 1. Fig. 3(f) shows a perspective view of Example 1, Fig. 3(g) shows an enlarged front view, and Fig. 4 shows a side view. The cross-sectional shape of the shaft body in Example 1 is circular and becomes smaller at a constant rate in the direction in which the core is shaved and exposed. Therefore, the ease of gripping varies slightly depending on the holding part, it is gentle and adaptable to the user's hand, and it is also possible to change the gripping position according to the user's personality.

[0022] Example 2 As an example, Example 2 of the present invention will be described with reference to the drawings. Figures 5 and 6 show the pencil according to Example 2. Fig. 5(h) shows a perspective view of Example 2, Fig. 5(i) shows an enlarged front view, and Figs. 6(j) and (k) show side views. Contrary to this embodiment, the shape of the shaft body in Example 2 is such that the cross-sectional shape in the longitudinal axis direction along the longitudinal axis enlarges at a constant rate in the direction in which the core is shaved and exposed. When no marks or the like are applied to the pencil, it has substantially the same shape as this embodiment, but when marks or the like are applied to the pencil, it has a different shape from this embodiment. Such a shape is preferable for users who prefer a shape that becomes larger at a constant rate in the direction in which the core is shaved and exposed.

Industrial Applicability

[0023] The pencil according to the present invention can be widely applied to all fields of daily life, such as a writing instrument for preschool children, or for students from elementary school to university or graduate school when studying widely, or a writing instrument for working people when studying or working.

Explanation of Signs

[0024] 1 ··· Pencil 11 ··· Core 12 ··· Shaft body 21 ··· Vertical axis

Claims

1. In a pencil comprising a core and a shaft surrounding the core, a cross-sectional shape perpendicular to the longitudinal axis of the shaft is substantially line-symmetric with respect to a line segment passing through the center of the cross-section, and the cross-sectional shape is a conical shape that increases or decreases at a constant rate along the longitudinal axis of the pencil in the direction in which the core is sharpened and exposed, and is substantially similar to the cross-sectional shape of the bottom surface of the shaft. A pencil characterized by that.

2. The pencil according to claim 1, comprising two types of the cores having different darkness or colors, wherein the two types of cores are switched at a substantially central portion of the shaft in the longitudinal axis direction.

Images