JPH055033Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a double-headed marking pen.

[Prior art and its problems]

Double-headed marking pens, which have a pen body attached to each end of a barrel, are useful because they serve as two types of marking pens. This double-headed marking pen has 2 different ink colors and 2 types of pen bodies that allow you to use different thicknesses of handwriting.
There are types for handwriting, but in order to make different types of pen bodies, it is necessary to prepare the types of nib and barrel into which the pen bodies are fitted accordingly.

On the other hand, in a double-headed marking pen for two colors, the pen body usually has the same thickness, and the same tip is fitted to both ends of the barrel. Therefore, the sizes of the openings at both ends of the barrel are the same, and a dedicated barrel for two colors is used, which is different from that for two handwritings.

[Purpose of invention]

Therefore, with this invention, it is possible to share the barrel for two colors and two handwritings, there are fewer types of tips, and by making parts common for many types of double-headed marking pens, only a small number of parts can be prepared. The purpose is to provide a double-headed marking pen that can be produced using

[Structure of the idea]

The double-headed marking pen of the present invention is a double-headed marking pen in which a rod-shaped pen body is fixed to openings at both ends of a barrel. The inner diameter of the second tip is made equal to the outer diameter of the first tip that is fitted into the small-diameter opening, and the first tip can also be fitted into the second tip.

〔Example〕

The present invention will be specifically described below based on embodiments shown in the drawings.

FIG. 1 shows a double-headed marking pen for two handwritings with different thicknesses, but the ends of the first shaft 11 and the second shaft 21 are screwed together to form one shaft cylinder 1. .
The sizes of the inner holes of the first fitting portion 12 at the tip of the first shaft 11 and the second fitting portion 22 at the tip of the second shaft 21 are as follows:
The second fitting portion 22 is larger than the first fitting portion 12. Further, vertical air grooves 13 and 23 are formed on the inner surface of each fitting portion 12 and 22, respectively.

The first tip 31 is fitted into the inner hole of the first fitting part 12, and the second tip 32 is fitted into the inner hole of the second fitting part 22. The size of the inner hole is
The diameter is equal to the outer diameter of the first tip 31, and the first tip 31 can be fitted into the inner hole of the second tip 32. A first pen body 41 for fine lines is fixed to the first tip 31, and a second pen body 42 for thick lines is fixed to the second tip 32. An ink storage body 51 is housed in the shaft cylinder 1, and one end of the ink storage body 51 is fixed by a rib 24 in the second shaft 21. This ink absorbing body 51 is formed into a rod shape by aligning ultra-fine fibers, and has a large ink absorbing power. The end of is inserted. Therefore, in this double-headed marking pen, ink of the same color is transmitted to the first pen body 41 and the second pen body 42 for writing.

In this embodiment, an example is shown in which the tips 31 and 32 are used, but when a double-headed marking pen with a thicker pen body is used, these pen bodies can be directly attached to the first fitting part 12 and the first fitting part 12. If it is fixed to the inner hole of the second fitting part 22, a double-headed marking pen for double handwriting with a thick pen body can be obtained.

Next, Fig. 2 shows a double-headed marking pen for two colors with the same thickness of the pen body, but the structure of the barrel 1 is different from that of the first one.
It is the same as the one for two handwritings in the figure. The first tip 31 fitted into the first fitting part 12 and the first pen body 41 fixed thereto are also the same as those for two handwritings.
The second tip 3 fitted into the second fitting part 22
A first tip 31 is fitted into the inner hole of 2, and a first pen body 41 is fixed to the first tip 31. The ink storage body 52 housed in the shaft cylinder 1 is a two-color ink storage body that is partitioned at the center by a diaphragm (not shown) and stores inks of different colors on the left and right sides. The ends of both pen bodies 41, 41 are respectively inserted into the pen bodies 41, 41. Therefore, two pen bodies 4
1 and 41 are supplied with ink of different colors for writing.

Note that the pen body is directly fixed to the first fitting part 12 without using the first tips 31 at both ends, and the pen body is directly fixed to the second fitting part 2.
In case of No. 2, by fixing the pen body to the second tip 32, the same thick pen body can be attached.

In this way, double-headed marking pens for two colors and two handwritings can be manufactured using the same barrel, and there are fewer types of tips, which has the advantage of being able to securely attach various pen bodies.

[Effect of idea]

As explained above, the double-headed marking pen of the present invention has two types of inner diameters, large and small, for the openings at both ends of the barrel, and the inner diameter of the second tip, which is fitted into the large-diameter opening, is fitted into the small-diameter opening. The outer diameter of the first tip is made equal to the outer diameter of the first tip, and this first tip can also be fitted to the second tip, making it possible to share the barrel for two colors and two handwritings. The number of types of mouths is small, and by standardizing parts, it is possible to make a double-ended marking pen that can be produced by preparing only a small number of parts.

[Brief explanation of the drawing]

1 and 2 show cross-sectional views of an embodiment of the present invention, respectively. 1... shaft cylinder, 11... first shaft, 21... second shaft
Shaft, 12...first fitting part, 22...second fitting part,
24...Rib, 31...First tip, 32...Second
Tip, 41...first pen body, 42...second pen body, 51, 52...ink absorbing body.

Claims (1)

[Scope of utility model registration request] In a double-headed marking pen in which a rod-shaped pen body is fixed to openings at both ends of the barrel, the inner diameters of the openings at both ends of the barrel are two types, large and small, and the inner diameter of the second tip fitted into the large diameter opening is A double-headed marking pen characterized in that the outer diameter is equal to the outer diameter of a first tip fitted into a small diameter opening, and the first tip can also be fitted into a second tip.