DE2017353A1 - Control device for the ink feeder of a cartridge or piston fountain pen - Google Patents

Description

Dr. A. ULLRICH Dr. T. ULLRICH _

69 HEIDELBERG, Gaisbergstraße 3 Telephone: (06221) 25335 - Telegram address: ULLPATENT

Our sign:

8209

Philipp Mut3ohler _t Fountain Pen Factory 69 Heidelberg. Biethastr. 20th

Control device for the ink feeder of a cartridge or piston fountain pen.

To a fountain pen, especially a cartridge fountain pen, very high demands are placed on its function in use today. being The aim of the ink feeder is to supply sufficient ink to the nib, even if, as is the case with a wide nib is, the consumption of ink is very high. The holding capacity of the ink feeder should be at-.and Air fluctuations are very high and the collection system must be emptied completely when it is unloaded, so that the System retains its function in the event of repetition. This property is particularly important when shipping the ready-to-write or written-on fountain pen as is customary today. In addition, the fountain pen should largely insensitive to vibrations, i.e. be resistant to shaking. . ■; · ...

Some ink delivery systems already exist. _; of fountain pens that meet this requirement, but then all have a more or less difficult production method in common. Above all, these systems consist of a large number of individual parts that have to be very precisely coordinated in order to fulfill this purpose.

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It is not uncommon for 4 -6 measurements to be T-2/100 mm must be strictly adhered to in order to guarantee a good function, because already 5/100 mm deviations of a measure once determined put the sensitive control function in question.

The invention accordingly provides a regulating device for the ink feeder of a cartridge or piston filler holder for holding and feeding the ink to the pen from an ink container with means which prevent the inadvertent leakage of ink due to a pressure increase in the container and which is characterized in that the The means exercising the control function consist of a mouthpiece with flange and piercing pin and an ink feeder with pin and push-on sleeve which is accommodated in the bore of the mouthpiece and is in frictional engagement with this bore. The piercing pin serving for the ink and air supply is designed in one piece, the flat surface formed by the flange of the mouthpiece is traversed by three ink-supplying capillary chlitzeri and -ψοη a groove with Drosselnocfce up to the outer "circumference and finally a is located in the center of the flange also of three capillary slots and an air groove pierced approach to which the rear end of the feed pin strikes.

The push-on sleeve forms the boundary on the front of the plan gap and the width of the plan gap is through the stop of the Aufstecfchülse on a flat 'in Mouthpiece limited. The one for a perfect ink supply the segment gap © important Singspait is through the offset of the diameter and the flattening on the the spring facing away from the push-on sleeve and a Bore and a flat area formed in the mouthpiece.

10S843 / Ö1O7

_ 3 -

The controlled system is through at least one segment-shaped Gap or formed by several gaps and stands directly with the annular gap and the plane gap in connection. The inlet opening to the ink collection system runs from the segment gap through a slope, which with a spiral passage creates a gradual transition of the Forms cross-section of the segment column on the cross-section of the spiral duct or another collection system.

The system according to the invention works in every situation trouble-free, always ensures perfect ink supply, withstands temperature and air fluctuations gen and maintains these punctures even in the case of recurrence. By the simplicity and the familiar Systems far fewer number of parts is the puncture of the claimed device known devices superior in every way and much simpler in terms of production technology.

The drawings illustrate an embodiment of the invention that combines a good puncture with simple production and its control.

The mouthpiece 2 'takes on all parts such as the spring 1, the ink feeder 3 and the piercing pin 21 without yet Seals or screw connections are necessary. The attachment of the ink feeder 3 and the spring 1 is done in a simple manner by frictional engagement. The piercing pin 21 is firmly connected to the mouthpiece 2 by means of the flange 26. The dimensions that are important for the function are through the simplicity of the components is easy to maintain.

In the piercing pin 21 there are three capillary slots 20, which also form the flat surface in the mouthpiece 2 the side facing the ink supply end through it and that of the ink supply of the spring 1 via the capillary slot 5 on the ink feeder 3 and the annular gap 24,

109843/0107

the through, the pin 4 on the ink supply er x 3 and the Aufeteckhülse 10 is formed, serve. Also the plan gap 2.3 »which is formed by the end of the push-on sleeve 10 facing away from the spring and the puddle 26 on the mouthpiece 2 is formed by the three capillary slots 20 which pull through the approach 27 on the splash 26, supplied with ink. The same also applies to the annular gap 24 and the segment gaps 15 and 16, which are formed by the bore and flattened area in the mouthpiece 2, the offset on the diameter and you flattening at the end facing away from the spring 1 ' the push-on sleeve 1Ö are formed, always with ink filled.

If ink is removed while writing, air must of course immediately enter the ink supply space (cartridge) in order to allow the ink to flow evenly to the pen. The air takes its way over the air grooves 7,8,12, the spiral thread 11, the spiral thread 13, the incline 14, the segment gaps 15 and 16 and the air grooves 17 and 19 to the storage space (ink cartridge) ₀ The ink, the segments, Palte 15 and 16 closes, is already opened by the slight negative pressure that occurs when writing in the storage container (ink cartridge) and immediately closed again when the pressure is equalized, so that no further air can penetrate into the storage space and the ink is reliably prevented from running out. ' The throttle cam 18 has the task of regulating the ink supply on the one hand and the air supply on the other hand. If there is overpressure in the storage container (ink cartridge) due to heating or air pressure fluctuations, the excess ink passes via the inlet gap 22 and the plane gap 23 through the segment gaps 16 and 15 via the bevel 14 and the spiral thread 13 into the spiral thread 11 and also fills the grooves 12, 8 and 7 on the ink feeder.

10984370107

If the overpressure in the reservoir drops again, or if ink is consumed by writing, then it is emptied Complete the system in reverse order. As soon as the pressure equalization is restored, the two segment gaps are replaced by the Ink sealed again.

The reference number 6 denotes a bore for inserting a disassembly tool.

Finally, the groove 9 is used with a wedge in the. Ink feeder 3 on the push-on sleeve to prevent rotation.

1 shows a dog piece 2 with an ink feeder 3 in longitudinal section, while Fig. -2 shows a longitudinal section with an internal ink feeder.

3-8 show cross-sections on the lines a-a, b-b, c-c, d-d, e-e and f-f according to FIGS. 1 and 2.

109843/0107

Claims (6)

P a t e η t ä η s ρ r ü c h e Hegel device for the ink supply he one _: -. Cartridge or piston fountain pen · for holding and supplying the ink, to the pen from an ink container .with means; which prevent unintentional leakage of ink due to a pressure increase: in the container, characterized in that the means exercising the leveling function consist of a mouthpiece (2) with flange (26) and piercing pin (21) and one accommodated in the bore of the mouthpiece and in The ink feeder (3) with the pin (4) and the push-on sleeve (10) is frictional with this bore, 2) Device according to claim 1, characterized in that the ink and air supply serving piercing pin (21) is integrally formed with the mouthpiece (2.), the plane surface formed by the flange (26) of the mouthpiece (2) of three ink-feeding capillary slots (20) and is traversed by an air groove (19) with a throttle cam (18) to the outermost circumference and that in the center of the flange (-26) there is also a pierced approach by three capillary slots (20) and an air groove (19) (27) is located against which the rear end of the feeder pin (4) strikes. 3) Device according to claim 1 and 2, characterized in that the slip-on sleeve (10) forms the spring-side delimitation of the plane gap (23) and that the width of the plane gap (23) through the stop (25) of the slip-on sleeve (10) on a flat is limited in the mouthpiece (2). 43/0107 - ■ r ■ " ⁷ " 4) Device according to claim 1-3, characterized in that the for the ink supply of the segment column (15) and (16). important annular gap (24) is formed by the offset of the diameter and the flattening on the side of the push-on sleeve (10) facing away from the spring and a bore and a flattening in the mouthpiece (2). ·, 5) Device according to claim 1 - 4; characterized gekehn- "is characterized in that the Regelstre'cfce ^ 'dürbn' segmeritförmigen at least one gap (15) or (16) gebil- * det and is directly connected to the annular gap (24) and the calender gap (23) in communication. 6) Device according to claims 1-5, characterized in that the input opening to the ink collection system from the segment gap (15) and (16) takes place via a slope (14), which with the spiral thread (13) a gradual transition of the cross section of the segment column (15) and (16) on the cross section of the spiral thread (11) or another collecting system. - 109843/0107