DE1461587A1 - Writing instrument - Google Patents

Description

U61587

Dr. F. Zumstein Sr. - Dr. E. Assmann Dr. R. Koenigsberger - Dipl. Phys. R. Holzbauer

Dr. F. Zumsioin jun. Patent attorneys

8 Mönchen 2, Bräuhausstraße 4 / IU

New complete registration documents

Dai Nihon Bungu Co. Ltd., Tokyo / Japan

Writing implement

The invention relates to a writing instrument, consisting of a pyramid-shaped spring which is completely connected to a spring core, with longitudinal grooves which extend into the spring core, so that ink from the through these longitudinal grooves
Ink chamber can flow to the nib through a central opening therein.

It is an object of this invention to provide a simple writing instrument similar to a fountain pen, the ink of which is liquid,
without tearing off, flows to the pen and furthermore no special ink flow is indicated in it, in particular with the
Writing implement according to the invention in any direction and in
can be written in any location.

An example embodiment of the invention will now be
explained with reference to the drawings.

909847/0066

Fig. 1 shows an overall view of an embodiment according to of the invention, wherein the casing of the writing implement is cut.

Fig. 2 shows an enlarged partial section along the line A-A of Pig. 1.

Fig. 3 shows a cross section along the line B-B of Fig.

FIG. 4 shows an enlarged partial section along the line C-G of FIG. 2.

Fig. 5 shows a partial section of another exemplary embodiment of the invention.

6 shows an enlarged section of the tip of another exemplary embodiment of the invention.

FIG. 7 shows a partially broken away view of the nib of FIG. 6.

The figures mentioned are exemplary embodiments according to the invention .

1 to 4, 1 is a spring core, 2 is a conical synthetic resin spring, all parts of which form the embodiment. Furthermore, some longitudinal grooves 3 are arranged in the surface of the conical synthetic resin. 4 shows a spring core or a central opening, 5 is a longitudinal channel which is divided in the direction from the central opening to the outer surface and which is connected to the Longitudinal channel 3 is connected. 6 is an ink chamber which is set at the bottom of the spring core and in which a core pin is placed is used for the flow of the ink and runs close to the tip of the spring core and in its surface one has narrow channel 9 in the longitudinal direction. 8 is an annular channel between the spring core 1 and a spring 2. Now flows Ink from the ink chamber 6 through the narrow longitudinal channel 9 of the core pin 7 slowly and evenly to the tip of the body from the channel 5, which is divided in the longitudinal direction, it is regulated in the ring channel 8 and therefore flows through the longitudinal channel 3 in the spring 2 to the tip of this spring.

909847/0066

U61587

Furthermore, whether there is much or little liquid ink in the ink chamber, the ink becomes due to the capillarity flow exactly through the narrow longitudinal channel, except for a special portion of liquid ink that flows through the longitudinally divided channel 5 of the spring core 1 into the longitudinal channel 3 flows in the surface of the spring 2; after them - as above described - in which F * T »g *» "" »T 8 was regulated, flows the ink evenly without tearing and without dripping from the pen. As shown in Fig. 5, is in the upper end of the Ink chamber 6 a flexible air chamber 10 is arranged. It is with the previous fountain pens known that - if the ink has dried up in the nib - it is only possible to push the pen hard through the pen to bring the open channel of the spring to flow.

According to the invention, when a conical pen is used, it is difficult to pick up the ink even by hitting the pen to flow. Therefore, once the ink has dried, it will be difficult to flow. around these cited To avoid disadvantages, a flexible air chamber is arranged in the ink chamber, in which the ink inevitably comes out the ink chamber to the pen flows by the appropriate part itself is squeezed, making it easy to sew the ink is prevented.

In the in the Flg. The example shown in FIGS. 5 and 6 is in the above Part of the spring core 11 has a spiral hole 10 arranged, a hole 12 is connected to the helical elements at the lower part of the spring 13.

Subsequently, if the spring is worn out or broken, it can easily be removed and replaced with a new spring; ^ -. v ^ i -_r i ^ r -.-: .-. .- . . · ... ■ ..-. ^. . ■.

Furthermore, if from the pen or the pen core, ink can be used outside -dTingt, tea to prevent the drying of the ink, a thin film 15 'arranged around the upper end of the spring

7/0066

will. With this, the leakage of the ink can be completely prevented.

Synthetic resin, metal and / or other suitable materials can be used as the material, the claimed Scope of the essence of the invention is not impaired if instead of a composite or screwed innerspring is a connected or pressed innerspring.

909847/0066

Claims (1)

Bai Nihon Bungu Co., Ltd. This year's patent claim Writing implement with a nib and a nib with a leonian section in a rounded tip runs out, characterized by longitudinal grooves (3) in the surface of this spring (2), the tip of which is conical Section protrudes, these grooves (3) extending to the rounded tip, by a spring core (1), the is connected to the end of the spring opposite the rounded tip and has an axial bore (4) and longitudinal channels (5) extending from the bore (4) to the Outer surface of the spring core (1) extend through a core pin (7) in this bore (4) »one end of which extends into extends into the end section of the spring body opposite the spring (2), this core pin (7) having at least one longitudinal groove (9) in it Surface, and by an ink chamber (6) in this end portion of the spring body, which receives one end of the core pin (7), the longitudinal channels (5) in the spring core (1) with the longitudinal grooves (3) in the spring (2) are in communication and form a passage through which the ink from the ink chamber (6) via the Core pin (7) is guided to the spring (2). 9098 ^ 7/0060