DE1511344A1 - Fountain pen, drawing or writing pen with a wick as a writing element - Google Patents

Description

■ Filler, drawing or writing pen with a wick as a writing element ·

The invention relates to a filling, drawing or writing pen with tissue, felt or plastic as a writing element, which is connected to an ink container, in which according to patent ....... (patent application F 46 095 VII b / 70 b) around the writing wick a device for bringing about a uniform, temperature-independent color liquid inflow is provided in a concentric arrangement consisting of one or consists of several channel-shaped compensation chambers, which with are in direct or indirect contact with the outside air and thereby at the same time to ventilate the ink space to serve.

In such fountain pens, drawing pens or writing pens with a wick as the writing element and one arranged concentrically to the wick Device for bringing about a uniform temperature-independent ink supply, the channel-shaped compensation chambers are generally designed as helical channels, which open directly into the open near the tip of the pen. With this arrangement, there is a risk that, when the compensation channels and one If the writing instrument is jolted by a sudden impact in the axial direction, the ink will run out at the front.

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In order to prevent this, it was therefore proposed to arrange the compensation chambers radially and to allow ventilation make a separate ventilation pipe that led to a ventilation opening on the rear plug is.

This embodiment is probably completely leak-proof in the event of vibrations, however, the ink space is greatly reduced by the breather pipe, and moreover, the assembly of such devices is relatively complicated.

The invention has now set itself the task of filling, Drawing or writing pens with a fabric, mushroom or plastic fiber wick as a writing element, which is equipped with a Ink container is in communication, in which around the writing wick a device for bringing about a uniform, temperature-independent color liquid inflow in concentric Arrangement is provided which consists of one or more channel-shaped Equalization chambers exist, which stdren with the outside air in connection, the device for bringing about a to design a uniform, temperature-independent ink supply in such a way that that without narrowing the ink space a perfect The equalization chambers and the ink space are ventilated, with the ink running out under all stresses that occur is certainly avoided.

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This is achieved by the fact that the channel-shaped compensation chamber is designed in the tip insert part as a hanging channel, the writing wick filling only part of the length of the tip insert and then towards the ink container a suction wick with a slightly larger diameter is arranged, which has a lower density than the writing wick. The ventilation takes place between the wick carrying writing tip and the tip insert through longitudinal channels up to about two-thirds of the height of the annular channel-shaped Compensation chamber and from here via a radial opening provided below in the compensation chamber wall and Longitudinal channels between the suction wick and the chamber wall to the ink container. The suction wick can be used to prevent displacement the longitudinal ventilation channels must be surrounded by a plastic jacket.

To simplify the filling process of the pen, on the tip insert designed as an ink cartridge Ink tank in the usual way by inclined tube puncture or ball valve can be connected. The size of the annular compensation chamber is advantageously chosen so that when the temperature rises by ^ O - 50 C and large air space in the container which displaced Ink can be safely absorbed.

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This fountain pen construction can also be designed as an insert for fountain pen housings provided with end caps be.

In the drawing, an embodiment of the invention is shown and then explained in more detail.

It shows:

1 shows a longitudinal section through such a fountain pen with an annular compensating channel

FIG. 2 shows a cross section through the object of FIG. 1 along the section line II - II,

FIG. 3 shows a cross section through the object of FIG. 1 according to the section line III - III,

FIG. K shows a cross section through the object of FIG. 1 along the section line IV-IV and

FIG. 5 shows a cross section through the object of FIG. 1 according to the section line V-V-

The fountain pen, drawing pen or writing pen with a tissue, felt or Plastic fiber wick according to FIGS. 1 to 5 consists of the

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Ink container 1 with the ink chamber 1 "» the one with the lid 1 " is complete, and the inserted tip part 2, which the annular Äusgleichskanal 2 c and the tip 3 with the Has writing wick ^. Inside the back of the tip a suction wick 5 is provided following the writing wick 4, which is surrounded by a plastic sleeve 5 '. From the tip 3 go between the tip shaft and the Insert part 2 longitudinal channels 2a, which at 2 b in the radial direction in the annular Äusgleichskanal 2 c and at the top at 2 a "lead to the outside air.

At the lower end of the annular compensation channel 2 c has two Ink outlet openings 2 d, which lead to the writing wick 4 or Guide suction wick 5. From here, two further ventilation channels 2 e also lead to the ink container space 1 ″. During the normal writing process, the ink is transferred from the container interior 1 ″ via the suction wick 5 to the writing wick tip 4 submitted.

Now the air expands above the ink level in the ink container space 1 "by heating, the excess ink is removed from the suction wick 5 via the radial openings 2 d in the annular compensation channel 2 c derived. Now the writing wick 4 is supplied with ink from the Compensation channel 2c until the excess ink is used up. During this time, the ventilation of the ink room is essential 1 "blocked via the longitudinal channels 2 e.

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If the excess ink from the compensation channel 2 c is used up, normal ventilation takes place again from the radial channels 2 a ¹ via the longitudinal channels 2 a and at 2 b into the annular compensation channel 2 c and then via the openings 2 d and the longitudinal channels 2 c into the ink space 1%, which enables the normal supply of ink to the writing tip 4 · from the ink container space 1 ″.

If the pen is designed as an insert device for a fountain pen barrel and with an exchangeable ink cartridge, at the rear end of the tip insert part 2 a pin for receiving the ink cartridge is provided in the usual way.

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Claims (9)

Patent claims: 1.)) Fü11, drawing or writing pen with a fabric, felt or plastic fiber pen as a writing element, which is in communication with an ink container, in which around the writing wick means for bringing about a uniform, temperature-independent color liquid supply it is provided in a concentric arrangement, which consists of one or more channel-shaped compensation chambers, which are in direct or indirect connection with the outside air and thus at the same time for ventilation serve the ink space, according to patent ....... (patent application F 46 095 VII b / 70 b), characterized in that the channel-shaped compensation chamber in the tip insert (2) is designed as an annular channel (2 c). 2.) filling, drawing or writing pen according to claim 1, characterized in that the writing wick (4) fills only part of the length of the tip insert (2) and then to the ink container Cl "), a suction wick with a slightly larger diameter (5) is arranged, which has a lower density than the writing wick (4) and is expediently surrounded by a plastic film jacket (5 ¹ ). 909831/0099 3.) filling, drawing or writing pen according to claim 1 or 2, characterized in that between the writing wick (^) carrying the sleeve part (3) and the tip insert part (2) longitudinal ventilation channels (2a) are arranged at the tip through radial channels (2a ¹ ) to the outside, and at the other end via the bores (2b) made about two-thirds of the length of the compensation channel (2c) into the annular compensation channel (2c). k ») filler, drawing or writing pen according to claim 3» characterized in that ink outlet openings (2d) are attached to the front end of the annular compensation channel (2c), which are offset by approximately 90 ° from the ventilation channels (2a), whereby from these ink outlet openings (2d), along the plastic ^{jacket (5 1} ), lead ventilation channels (2e) into the ink space (1 "). 5.) filling, drawing or writing pen according to one or more of the preceding claims, characterized in that the ink container (1 ") is designed as an exchangeable ink cartridge that can be slipped onto the tip insert part (2) is. A. W. Faber - Castell Stein near Nuremberg 9.0983 1/0099 COPY