JPH11208177A - Writing instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a writing instrument improved to predict a time of lacking of a ink according to a writable writing length and number of characters. SOLUTION: An ink scale 3 for indicating a writable writing length and the number of characters is axially arranged with graduation lines of a measure on an ink tank 1 partly or entirely having transparency and light transmission properties. The scale 3 is the same color as ink M color contained in the tank 1 so that as the ink M is consumed, the scale 3 is developed on a surface of the tank 1. And, filling capacity of the ink M between the lines of the scale 3 is at least writable by the writing length of about 10 m or at least 200 characters of the number.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument such as a refill replacement type for loading a refill in a barrel, and a direct liquid type ballpoint pen, a felt-tip pen, a marker pen, etc. for directly filling an ink in a barrel. In the above-described refill replacement type and direct liquid type, the present invention relates to a writing implement in which an ink tank filled with ink has transparency and translucency.

[0002]

2. Description of the Related Art Conventionally, writing instruments such as ball-point pens and felt-tip pens are easy to use, and thus are used more frequently in offices and other places than in pencils that require sharpening.

[0003]

By the way, conventionally known writing instruments such as ball-point pens and felt-tip pens are easy to use, but can predict (predict) when the ink stored in the ink tank will run out. However, the ink may suddenly run out and become unusable, causing a problem that the writing operation must be interrupted halfway.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object thereof is to provide a writing implement improved so that the time at which ink runs out can be predicted by the writing length and the number of characters that can be written. Is to do.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an ink scale having a transparent and translucent ink tank, which has a writable writing length and the number of characters. In the axial direction. Also, the ink scale is made the same color as the ink color contained in the ink tank so that the ink scale appears on the surface of the ink tank as the ink is consumed. Further, the ink filling capacity between each scale of the ink scale is capable of writing at least a writing length of about 10 m or at least about 200 characters. According to such a technical means, the writing length and the number of characters that can be written on the ink scale that is present on the ruler scale applied to the ink tank are predicted, and by purchasing a new writing implement, the writing work can be performed. Can be continued without interruption. In addition, since the ink scale applied to the ink tank is present on the scale of the ruler, the function and the function are achieved even if the ruler required for office tools is not prepared. Furthermore,
The writing length or the number of characters that can be written can be predicted based on the ink filling capacity between the ink scales, which is useful for purchasing new writing tools early depending on the purpose of use.

[0006]

Embodiments of the present invention will be described with reference to the drawings. The ink tank 1 is partially or entirely formed of a transparent and see-through synthetic resin material, is provided with a tip 2 at its tip, and is provided at a rear end of the filled ink M for preventing a backflow of the ink M. Alternatively, it contains a sponge 4 or the like. Then, an ink scale 3 indicating the writable writing length and the number of characters is applied to the ink tank 1 in the axial direction so as to coexist with the scale of the ruler so that the time at which the ink M is cut at the ink scale 3 can be predicted. It is composed.

Although not shown, an ink follower made of grease or the like following the consumption of the ink M may be accommodated at the end of the ink M instead of the above-mentioned bar or sponge 4 or the like. It is.

The ink scale 3 is provided along the scale of the ruler by a desired display means such as printing in the axial direction of the ink tank 1 in a range in which the ink M is stored, and the writable writing length and the number of characters are determined. It can be checked in advance. The ink scale 3 is applied in the same color as the color of the ink M to be filled in the ink tank 1, so that the ink scale 1 appears sequentially from the rear end side of the ink tank 1 with consumption of the ink M so that the user can visually recognize the ink. It has become. Further, the filling capacity of the ink M between the scales 3 of the ink scale 3 is at least 10 m in terms of the writing length or the number of characters.
It is set so that a writing length of about or at least about 200 characters can be written, and a writing length of about 10 m or a number of about 200 characters can be written with a filling capacity of the ink M between each scale 3. It becomes like this.

According to the writing implement of this embodiment configured as described above, the time at which the ink M will run out can be predicted by the number of characters to be written, for example, according to the purpose of use, such as creating a long sentence or a short sentence. By purchasing a new writing tool, it is possible to prevent a situation in which the writing operation is interrupted due to sudden running out of ink or the like.

In the above-described embodiment, the display color of the ink scale 3 is the same as the color of the ink M, but may be of a different color.

[0011]

Since the writing instrument of the present invention is constituted as described above, the following effects are obtained. . Since the ink tank is provided with an ink scale that indicates a writable writing length and the number of characters, the user can purchase a new writing implement by predicting when ink will run out on the ink scale.

[0012] Since the ink scale applied to the ink tank is present on the scale of the ruler, it functions and acts as a ruler required for office tools.

[0013] By setting the ink filling capacity between each scale of the ink scale so that a writing length of at least about 10 m or a number of characters of at least about 200 characters can be written, purchase a new writing tool early depending on the purpose of use. It is useful for such correspondence.

Therefore, according to the writing implement of the present invention, the time at which the ink runs out can be predicted by the writing length and the number of characters which can be written. This is advantageous because it is possible to prevent the writing operation from being interrupted halfway. In addition, the ink scale provided alongside the scale of the ruler functions and acts as a ruler for office tools, so that the ink scale can be used as a ruler.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the writing instrument of the present invention, wherein (a) is a front view and (b) is a longitudinal sectional view of the same.

[Explanation of symbols]

 1. Ink tank 2. Chip 3. Ink scale M. Ink

Claims (4)

[Claims] 1. A writing implement characterized in that an ink graduation indicating a writable writing length and the number of characters is applied in an axial direction to an ink tank partially or entirely having transparency and translucency. 2. The writing implement according to claim 1, wherein the ink scale is provided along with a scale of a ruler. 3. The writing instrument according to claim 1, wherein the ink scale is an ink color. 4. The writing instrument according to claim 1, wherein a filling capacity of the ink between each of the ink scales is at least a writing length of about 10 m or at least 200 m.
A writing implement characterized by being capable of writing about the same number of characters.