JPS6142857Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a marking pen that has a simple structure, firmly holds the pen tip and padding, and secures an air flow path.

Generally, marking pens have a filling that absorbs ink and is loaded into the barrel, but in order to hold this filling, for example, a plurality of axial protrusions are provided on the inner surface of the tip of the barrel, and between these protrusions, Things such as inserting batting were done. In addition, the rear end of the pen body, which is inserted into the tip that is fixed to the tip of the barrel, is inserted into the batting and ink oozes out, but the tip is used as an air flow path to replace the oozing ink. It was possible to drill a small through hole or provide a plurality of axially extending ridges in the inner hole of the nib, and insert the pen body between the ridges. However, in any case, there is no relationship between the mechanism for holding the pen body and securing the air flow path and the mechanism for holding the batting, and each mechanism is provided separately. Therefore, the structure is complicated, and the molds for injection molding the barrel and the tip must also be complicated.

Therefore, the present invention provides a plurality of protrusions in the axial direction on the inner circumferential surface of the nozzle that is fitted to the inner surface of the tip of the barrel, and the tip of the batting loaded into the barrel and the tip that is inserted into the nozzle. The marking pen is characterized in that the pen body and the pen body that is attached to the pen are held by this protrusion, and the marking pen secures an air flow path and holds the pen body and batting with one protrusion. .

Embodiments of the present invention will be specifically described below with reference to the drawings.

A tip 2 is fixed to the inner surface of the tip of the shaft cylinder 1 by press fitting. Four protrusions 3 are provided on the inner surface of the tip 2 extending from slightly inside the tip to the rear end. If the number of protrusions 3 is 3, the pen body 4
Although it is possible to hold the screws, it is desirable to have four to six rods in order to securely hold them. The pen body 4 has a large diameter portion 4a and a small diameter portion 4b that have somewhat different diameters.
The rear end connected to the small diameter part 4b has a tapered shape, and is inserted through the tip opening of the tip 2, but the stepped part 4C of the pen body 4 comes into contact with the tip surface of the protrusion 3, and when writing. This area is designed to receive the pressure of the pen. At this time, the small diameter portion 4b has four protrusions 3
The large diameter portion 4a is held firmly by the
A gap is left between the outer circumference of the pen body 4, the tip opening 2, and the inner surface of the tip opening of the tip 2.
The space defined by these three parts becomes the airflow passage 5.
In addition, a batting 6 that absorbs ink is loaded into the barrel 1, and its tip is press-fitted into the rear end of the projection 3 and held, and the rear end of the pen body 4 is held inside the batting 6. The ink is inserted into the pen body 4 so that the ink is guided to the pen body 4.

The structure of the present invention is as described above, and since the pen body and the filling are held at the same time by the protrusion inside the nib, it is possible to secure an air flow passage and hold the pen body and the filling with a simple structure. The mold also has the advantage of being simpler.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line--FIG. 1, and FIG. 3 is a sectional view taken along the line--FIG. 1. 1...Shaft cylinder, 2...Tip, 3...Protrusion, 4...
Pen body, 6... batting.

Claims (1)

[Scope of utility model registration request] A plurality of protrusions in the axial direction are provided on the inner circumferential surface of the tip that fits into the inner surface of the tip of the barrel, and the tip part of the batting loaded into the barrel and the pen body inserted into the tip. A marking pen characterized in that the marking pen is held by the protrusion.