JP3323646B2 - Writing implement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument used for a magnetic plate.

[0002]

BACKGROUND OF THE INVENTION from the outside of the member enclosing a magnetic powder in the viscous fluid closer to the permanent magnet, the magnetic <br/> image plate as a display device utilizes the fact that the permanent magnet attracts the magnetic powder in the member Are known. For example, as shown in FIG. 5, the magnetic powder 11 sealed in the member 10 having the inside partitioned into a honeycomb shape is attracted to the permanent magnet 12 in contact with the upper surface 10a of the member 10 and moves to the upper surface 10a of the member 10. The magnetic powder 11 appears visually, and is attracted downward by the erasing permanent magnet 13 provided below the member 10 and disappears from the upper surface 10a of the member. Therefore, by attaching the permanent magnet 12 to the tip of the writing instrument, the permanent magnet 12 at the tip of the writing instrument is pressed against the display surface of the magnetic plate, and the magnetic powder 11 is moved upward by moving on the display surface. To display pictures and characters,
Because the thickness of the line is constant as written with a ballpoint pen on paper,
The expression was poor. There are magnetic stamps and writing instruments for magnetic display boards disclosed in Japanese Utility Model Laid-Open Publication No. 2-56687 as supplements to this expressive power. The former has little change because only a pre-formed mark is displayed, and the latter has little change. The selection of the line is limited to the tip end surface of the writing section or the writing surface, and the manufacturing process becomes complicated, so that an increase in manufacturing cost cannot be avoided.

[0003]

SUMMARY OF THE INVENTION The object of the present invention is to provide a writing instrument which has been established under the above-mentioned background and has a simple structure, in which the thickness of a line can be freely controlled and which can express a taste. .

[0004]

Means for Achieving the Object To achieve the above object, a writing instrument of the present invention is a writing instrument used for a magnetic picture plate, and is characterized by having the following requirements. (B) At the tip of the shaft, a pen point formed by an elastic magnet is stored.
(B) so that the rear end of the pen tip fits into the storage section
It is formed in a cylindrical shape, and the front end is
Be formed so that it becomes thin toward the edge

The rear end of the pen tip is formed in a cylindrical shape.
And make the front end thinner and thinner toward the tip.
Instead of forming the pen tip
In addition, the other end is formed thick, and at the tip of the shaft body
The above-mentioned one end and the other end are exchanged for the provided storage part.
Select a thin line and a thick line and draw
You may make it go.

[0006]

According to the writing implement of the present invention, the pen tip of the writing implement is formed by an elastic magnet, and the front end is formed to be thin.
When the pen tip is pressed strongly against the magnetic plate, the pen tip bends and the area in contact with the magnetic plate becomes large, and a wide range of magnetic powder is sucked and moved. The trajectory of the writing instrument moving on the magnetic drawing board becomes thicker or thinner in proportion to the force (pen pressure) applied to the pen tip, and the thickness can be controlled freely. It is possible to provide a writing implement that can be obtained and can be expressed with a taste.

[0007] According to a writing instrument of claim 2, by replacing the end of the nib in the housing portion of the shaft, it is possible to select a thin line and a thick line.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. In FIG. 1, reference sign A indicates a writing implement, and reference sign B indicates a magnetic plate corresponding to the writing implement A.

The writing implement A is composed of a shaft 1 and a pen tip 2 as shown in FIG. The shaft body 1 is formed to resemble a writing instrument, and a storage part 3 for attaching a pen tip 2 is formed at the tip, and a protruding part 4 for preventing rolling in the longitudinal direction is formed at a center part. ing.

The pen tip 2 is formed of an elastic magnet such as a rubber magnet which can be deformed by an external force, and one end 2a is formed in a columnar shape and is provided so as to fit into the housing 3 of the shaft body 1. At the same time, the other end 2b is formed so as to be thin and thin toward the tip.

Since the writing implement A is configured as described above, as shown in FIG.
When pressed and moved on the display surface 5, the magnetic powder is sucked and moved on the surface, so that symbols, characters, and the like can be displayed on the display surface along the locus of the pen tip 2. In the state where the pen tip 2 of the writing implement A is lightly pressed and moved, only the tip of the pen tip 2 comes into contact with the display surface 5 as shown in FIG. In the state where the pen tip 2 is strongly pressed and moved, the pen tip 2 is thin and bent and comes into contact with the display surface 5 to the center of the pen tip 2 as shown in FIG. A thick line is displayed.

[0012] When moving the writing instrument A of the display surface 5 on the magnetic drawing board B as described above, or strongly pressed against the pen tip 2 on the display surface 5, it changes the deflection of the pen 2 by either pressing weak, Since the surface in contact with the display surface 5 becomes larger or smaller, the trajectory of the writing implement A can be made thicker or thinner as shown in FIG. 1, and the thickness of the line can be controlled according to the user's will. Therefore, a display with a variety of tastes can be displayed.

[0013] FIG. 6 (a) (b) is shows another example of the writing instrument A, one end 2c of the pen tip 2 is thin, the other end 2d is formed thick, the tip of the shaft 1 as shown in FIG. 7 Are stored in the storage section 3 provided in the storage section. In this case, the pen tip 2 is such that the one end 2c and the other end 2d can be exchanged with respect to the storage part 3, and the upper end of the pen tip 2 of FIG. (See FIG. 7).

[0014] Incidentally, the pen point 2 in the figure above the cross-section of both ends is formed into a flat plate, thinner end of the pen tip in a front view is obtained by thickening the other end.

According to the above writing instrument A, by replacing the end of the nib 2 in the holding section 3 of the shaft 1, it is possible to select a thin line and a thick line.

As shown in FIG. 8 , by forming the pen tip 2 of the writing implement A in a plate shape, a wide line can be drawn like a brush, and as shown in FIGS. 9 (a) and 9 (b). As described above, by forming a thin rod-shaped rubber magnet into a bundle and forming it into a brush shape or a brush shape, a more varied handwriting can be obtained.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a use state of a writing instrument of the present invention.

FIG. 2 is a perspective view showing a configuration of the writing instrument.

FIG. 3 is an explanatory diagram showing a trajectory in a state in which a writing instrument is lightly pressed on a magnetic plate.

FIG. 4 is an explanatory diagram showing a trajectory in a state in which a writing instrument is strongly pressed on a magnetic picture plate.

FIG. 5 is a diagram illustrating the principle of a magnetic picture plate.

6A and 6B are a front view and a side view of a pen tip according to another embodiment.

FIG. 7 is an explanatory diagram of a use state of the pen tip.

FIG. 8 is a perspective view showing another embodiment of the writing instrument.

FIGS. 9A and 9B show still another embodiment of a writing instrument.
FIG.

[Explanation of symbols]

 A Writing instrument B Magnetic drawing board 1 Shaft 2 Pen tip

Claims (2)

(57) [Claims] 1. A writing instrument used for a magnetic picture plate, which satisfies the following requirements. (A) A storage portion for storing a pen tip formed of an elastic magnet is provided at the tip of the shaft body. (B) The rear end of the pen tip is formed in a cylindrical shape so as to fit into the storage portion. , The front end is formed to be thin and narrow toward the tip 2. The pen tip has a rear end formed in a cylindrical shape.
The edge is formed thinner and becomes thinner toward the tip
Instead of forming it, one end of the pen tip is thin and the other end is
Is formed thick and is provided at the tip of the shaft body.
The above one end and the other end can be exchanged
The writing implement according to claim 1, wherein the writing implement is stored.