DE1611801A1 - Capless fountain pen - Google Patents

Description

Patent attorney

ing. Willielm Fieichel FianJrfuri / Main-1

-ParksixasselS 5426

Pilot Man-Nen-Hitsu KabusMki Kaisha »Ü? Oky-to / jäpan

Capless fountain pen

The invention relates specifically to writing implements on so-called capless fountain pens that do not need additional caps to cover their writers and protect «

The invention also relates in detail to a new and improved capless fountain pen which is provided with a writing unit containing a nib * which can slide under the action of gravity within the holder sleeve in order to move the nib out and retract and which also has a closure member can be actuated by an actuating device which can be operated by and to open a front opening in the holder sleeve for the writing tip to pass through and to close it and lock the writing unit in the writing position.

Well-known capless fountain pens are usually included a closure device and an extraction and retraction device. The closure device comprises a Shutter or cover for opening and closing a front opening in the holder sleeve through which the Writing body passes through, which has a writing tip on a Contains writing unit, wherein the flap or cover closes the front opening tightly when the writing body

009885/0437

is withdrawn so that the ink in the The writing body and the ingress of dust and sticking of the same to the writing body are prevented Retraction device is operated manually and moves the Writing unit from a position »in which the writing body is in the withdrawn position, in a position forward ι in which the writing body forward through the front opening protrudes ready for writing, and it locks the writing unit in this writing position also serves to unlock the writing unit and the writing body in its retracted position withdraw inside the sleeve.

However, since the locking device and pull-out device described above are constructed separately, they disadvantageously result in the arrangement and actuation of the yüllfederhaiters is entangled or made more difficult.

It is the object of the invention to provide a capless fountain pen to create with a simplified structure and simplified mode of operation, in which a pull-out device like them described above, is redundant, and in which the writing unit is influenced within and along the sleeve the force of gravity can move and the writing body of the writing unit ver in the writing position by a TerSchlußvorrichtung riegftlfc that opens and closes the front opening.

Ss is also intended to be a capless fountain pen to create the embodiment described above, in which the Yerschlußvorrichtung can not work unless a hand operated actuator is operated, the causes the opening and closing process of the locking device, so that the actuating device additionally as

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Safety device comes into operation »the one unintentional Prevents the writing body from moving out of the holder sleeve.

The invention is based on a capless fountain pen with a sheath or sleeve with a front opening on its Writing end, a locking device with a locking member for opening and closing the front opening, a Actuator with an actuator that is outside can be actuated on the sleeve »around the closure member in function to set * The invention consists in the fact that the writing unit consists of the structural union of a visual body with a pen nib, an ink reservoir device and an ink supply member »that consists of the writing body and the ink reservoir device connects »with the writing unit unimpeded in the sleeve or sleeve can move between drawn-in and drawn-out layers, in which the writing body is correspondingly withdrawn within the sleeve and stretched out of the sleeve and the Writing unit in the extended position by the locking device is locked »

The invention will now also be based on the accompanying figures described in detail, all from the description and the details or features emerging from the figures can contribute to the solution of the problem within the meaning of the invention and included in the application with the will to be patented were ,, All views are on an enlarged scale and like parts are identified by the same reference numerals.

Show it;

009885 / 043.7

Fig. 1 is a side view of an embodiment of a capless fountain pen according to the invention in the setting, in which the writing body of a writing unit is in the retracted position within an inner cylinder located, partly in longitudinal section;

Fig. 2 is a cross-sectional view taken along the plane indicated by line II-II in Fig. 1, with the writing unit omitted;

Figure 3 is a cross-sectional view taken along the plane passing through the line ΙΪΙ-ΙΙΙ in Fig. 1 is indicated, the writing unit is omitted;

Fig. 4 shows a further enlarged longitudinal section with the front part of the inner cylinder and the outer parts of the in Fig. 1 shown haters;

Fig. 5 is an enlarged front view of the arrangement shown in Fig. 4, viewed from the left;

FIG. 6 is an enlarged front view of that shown in FIG inner cylinder;

Figure 7 is an enlarged front elevational view of the door of the inner cylinder shown in Figures 4 and 5;

Fig. 8 is a partial view from below, namely in the by Line VIII-VIII in the direction indicated in FIG. 4;

FIG. 9 shows a longitudinal section of the writing unit of the FIG. 1 shown holder, with certain parts cut away and certain parts omitted;

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FIG. 10 shows a longitudinal section of the front part of the one shown in FIG

shown holder, wherein the writing body of the pen unit is in the writing position, in / from the interior Cylinder protrudes;

Fig. 11 is a partial longitudinal section of the front part of another Embodiment of a holder according to the invention, wherein the writing body of the writing unit is in the retracted position within the inner cylinder;

Fig. 12 is an enlarged front view of the inner cylinder and the flap of the holder shown in Fig. 11 and

13 shows a view similar to FIG. 11, which shows the holder according to FIG. 11 in an adjustment position in which the visual friction body protrudes from the inner cylinder and is in the writing position.

Throughout this description, terms such as refer to "forwards" and "forwards" refer to the writing end of the fountain pen or in the direction towards it, and expressions such as "back" and "back" denote the opposite End or the direction towards this end «expressions such as" top "," top "," over "," bottom ", "below" and "below" or "below" refer to Positions or directions as can be seen in the drawings.

Reference is first made to FIGS. 1 to 10 this embodiment shown of a capperillos fountain pen according to the invention has a metallic front sleeve or shell 1 into which an inner cylinder 2 made of a synthetic resin or plastic is inserted »between its front end 10 and its central part

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the inner cylinder 2 has a section 3 with a reduced outer diameter around the outer surface of which a metal sleeve 4 is fitted all around. A sleeve 5 is made of synthetic resin placed around the outer surface of the metal sleeve 4.

An annular space 7 is between a stepped shoulder 6, which is formed around the inner cylinder 2, and the rear end face of the sleeve 5 is formed · around the A cap-like metal cylinder 9 is placed on the outer surface of the sleeve 5, which forms the front end part of the casing 1 and a Has beveled front wall, which is provided with an opening 8 which is on the same longitudinal axis with a front opening 11 of the front end portion 10 of the inner cylinder 2 is or «is aligned. One chamber is inside the cylinder 9 formed between its front wall and the front end face of the inner cylinder 2. The front opening 11 at this front face can be opened and closed by a flap 26, which will be described below and is operated by a device which also follows is still being dealt with.

A metal strip is formed in the shape of a split ring, which has an inner diameter which is slightly larger than the outer diameter of the part 3 of the inner cylinder 2 with a reduced diameter, and this ring constitutes an actuating part 12 and is slidable on the section 3 placed with a reduced diameter and arranged in the tree 7 mentioned above. One part of it from the side viewed has a hook-like shape, is attached to its hook portion on the actuating part 12 so that it is from the sleeve 1 through a slot 15 in the upper part of the sleeve protrudes, and its shaft outside of the sleeve points towards the rear and is housed in the interior of a clasp 16, where

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at the rear free end 17 of the shaft of the spring part on the inner wall surface of a bulged end section

18 of the clasp 16 is attached. The spring part 14 is shaped in such a way that it is pretensioned in such a way that the bulged end section 18 is always pressed against the sleeve 1 as usual -c "■■ · ■ ·" ■

Punched out slots 19 and 20 are on the lower portion of the Actuating part 12 is provided as shown in Pig »8 · A. metallic connecting part 21 in the shape of a long and narrow strip with a width slightly smaller than that of the punched-out slot 19 is in the slot

19 used and at the same time in a cutout 22, which is about has the same width as the punched-out slot ■ * 9 and is provided on the lower portion of the above-mentioned sleeve 4 The rear end 23 of the connecting part 21 is by welding attached to the actuating part 12 and at the same time a protruding portion provided at the rear end 23 inserted into the punched-out slot 20. A helical compression spring 25 is connected between the above-mentioned shoulder 6 and the actuating part.12 to on the actuating part 12 exerts a spring force against the metal cylinder 9 to exercise,. '

The device for closing the front opening 11 of the front The end of the inner cylinder 2 has the following structure: The Opening 11 is through a flap 26 made of synthetic Har closed, which has a lower edge portion 28 of a has a semi-cylindrical shape that faces outwards extends both sides and the lower parts of cylindrical Forms pins 27 which protrude laterally from the flap 26. These pins 27 and the lower edge portion 28 are through

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Bearing parts 29 rotatably supported as shown in FIG is, whereby the flap can be pivoted about the axis of the pin 27 to open the opening 11 and close.,

A metallic plunger 30 of curved profile in section is in a groove or recess 31 on the front of the Flap 26 inserted and stored, and the lower end 32 of this The plunger 30 is guided through a slot 34 which is provided at the front end 33 of the connecting part 21 »Da - wie ■ mentioned above - the operating part 12 is influenced by a force exerted by the spring 25, the lower end 32 becomes of the plunger 30 through the edge of the slot 34 pressurized The protruding lugs 35 on the sides of the plunger 30 are in contact with attached sections 36 on The end of the sleeve 4 is pressed and supported in this position. The plunger 30 thereby presses the flap 26 against the end face 37 of the front end 10 of the inner cylinder 2, whereby the flap 26 is in close contact with the end face 37 «'

A guide groove 3 © is in the axial direction in the inner wall surface of the inner cylinder 2 at its upper central portion Torge See _e At the back of this guide groove 38, a connecting sleeve 40 (pipe section) arranged on the outer surface of its rear end a screw thread and an axial groove 39 with the same width as the guide groove 38. A sleeve 41 is fitted around the outer surface of the connecting sleeve 40, namely on its front section without the screw thread. A ring 42, which has an outer surface aligned with the outer surface of the holder sleeve 1, is placed around the outer surface of the sleeve 41.

The groove 39 of the connecting sleeve 40 and the guide groove 38 of the inner cylinder 2 are aligned on the same longitudinal axis,

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and the sleeve 41 is on the inner surface of the rear end 13 of the inner cylinder 2 fixed. A rear sleeve 43 Synthetic resin is releasable on the rear end of the Connecting sleeve 40 screwed on.

The inner cylinder 2 contains in its interior a writing unit 44 with the following structure: As in Pig. 9, a feed rod holding cylinder 47 extends forward from the front opening 46 of a metal feed rod cover 45, and a feed rod 48 constituting an ink inflow or supply part is inserted into and held in the feed rod cover 45 . Between the feed rod cover 45 and the feed rod 48, a cylinder 51 is inserted, which is provided at its rear end with an actuating member 50 for opening the closure portion of a replaceable ink cartridge 49 containing ink and forming an ink reservoir. The front open end 52 of FIG The ink cartridge 49 is designed so that it can be placed on the rear end of the cylinder 51, at which time the actuating part 50 of the cylinder 51 touches a sealing disk 53 and rotates it into its open position, which is shown in FIG line is indicated, from its originally closed position, which is indicated by dashed lines, and in which the plate 53 is held tightly against the cylindrical inner surface of the ink cartridge 49 to enclose the ink within the cartridge, whereupon the ink in the The cartridge is released and flows through the feed rod 48.

A block of metal with a lateral width or extension, which is slightly smaller than that of the aforementioned guide groove 38 of the inner cylinder 2 is welded

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ιοί ι σ υ ι

sen at the upper rear of the feed bar cover 45 attached to form a projection 54. The front open end 56 of an ink cartridge capsule 55 is in the rear End of the feed rod cover 45 inserted so that it can be pulled out. A] jder tip or writing tip 57 which is part of the Representing writing body is attached to the front tip 58 of the feed rod 48, the rear or foot portion 59 of the nib 57 is held by the feed rod holding cylinder 47 and the feed rod 48 and the Seitenabechnitte 60 of the writing tip .57 against the outer surface of the feed rod holding cylinder 47.

Although the ink reservoir above, by reference is described on an embodiment in the form of a replaceable ink cartridge, it is also possible to use an ink reservoir of a different design, e.g. one in which an ink suction device is provided is, among other things, to draw ink through the front tip of the feed rod, when the reservoir is detachably connected to a cylinder which encloses the feed rod. The one described above Writing unit 44 is thereby used in the built-in position within the inner cylinder 2 that the unscrewed rear sleeve 43 from the connecting sleeve 40, the writing unit 44 inserted into the inner cylinder 2, wherein the extension 54 on the writing unit into the tube 39 of the connecting sleeve 40 and the guide groove 38 of the inner cylinder 2 is inserted and displaced along these grooves, and finally the rear sleeve 43 on the connecting sleeve 40 is screwed.

The lower part of the feed bar cover 45 is the display unit 44 can move freely along the inner lower surface

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- -11 -

the. move the inner cylinder 2, so if the entire fountain pen is tilted so that the writing end points downwards ".j so" moves the writing unit 44 against the opening 8 in the front cylinder 9 under the influence of gravity, whereby the approach is guided 54'.durch the guide groove 38 lea inner cylinder 2 * conversely, if the Sahreibende of the holder is rotated upward, moves the writing unit 44 under the influence of gravity, the back of the rain out, the projection 54 through the guide groove 3 ö is guided until the rear face 61 of the ink cartridge capsule 55 strikes against a step 62 and is stopped by this, which is provided in the interior of the rear sleeve 43. ,

The fountain pen with the structure described above according to the invention works as follows:

In the line in which writing is carried out, the writing end of the holder is directed towards the center and the clasp 16 is moved towards the rear (direction of arrow A in FIG. 1), whereupon the actuating part 12 and the connecting part 21 also move in the same direction move. As a result, the part or section of the tappet 30 which is inserted into the recess 31 of the flap 26 rotates away from the front end face 37 of the inner cylinder 2 \ m an axis of rotation which is formed by the sections of the protruding lugs 35 of the tappet 30, which touch the protruding parts 16, 36 of the inner cylinder 2, the protruding lugs 35 remaining in contact with the protruding parts 36.

Here, the flap 26 is pivoted in the same direction and it detaches from the front end face 37

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from, whereby the front opening 11 of the inner cylinder 2 is opened o The flap 26 is thereby over a sufficient rotated at a large angle to prevent the feed rod holding cylinder 47 of the writing unit 44 and the holder-Sohreibspitze 57 abut against the flap 26 and thereby during the movement against the opening 8 in the front cylinder 9 could be hindered. The holding nib 57 occurs here through the front opening 11 and protrudes forward and through the opening 8 out, with the movement of the writing unit 44 bounded towards the front by the contact of the front end face 63 of the feed rod cover 45 against a stepped part 64 which is formed in the interior of the inner cylinder 2.

When the writing unit 44 is in this position and the When the clasp 16 is released to the rear from its set position, the actuating part 12 moves forward and the flap 26 pivots against the front face 37 of the inner cylinder 2. As a result, there is a < Support portion 65 of flat shape, which is provided on the flap 26, in contact with a support portion 66 of stepped Shape that is on the lower portion of the feeder rod holding cylinder 47 is provided, whereby the writing unit 44 is locked «The fountain pen is then in the in Fig. 10 writing setting shown.

The holder writing tip 57 of the writing unit 44 is retracted into the interior of the inner cylinder 2 for protected storage by the following process: The clasp 16 is moved backwards (in the direction A of FIG 31 of the flap 26 inserted ie ^ t, extending from the front face 37

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of the inner cylinder 2 rotates away so that the flap 26 pivots in the same direction. The support section 65 at the upper end of the flap 26 is thereby disengaged from the stepped portion 66 of the feed rod holding cylinder 47 the interior of the inner cylinder 2 zurückziehtο then, when the buckle 16 is released from its rearward position, the flap 26 is pressed tightly against the front face 37 of the inner cylinder 2 to seal the front opening 11 _β

Another embodiment of the invention will now be described with reference to Figs. In these figures, the parts that are omitted have the same construction as corresponding parts in the first embodiment of the invention described above. In cases in which the parts of this second example and portions thereof are the same as those of the first embodiment, these parts and portions are denoted by the same reference numerals. In those cases in which the parts and portions of the same of this second embodiment are not the same but are equivalent or similar to those of the first example, these parts and portions of the second embodiment are identified by the same reference numerals, but with the letter a added o *

A synthetic resin inner cylinder 2a is in a Metal sleeve or shell 1a used and a cylinder 5a from synthetic resin is around a section 3 & of reduced diameter (with the same .Aui3endurehmesser as the Section 3 of the inner cylinder 2) of the inner cylinder 2a put on. An annular space 7a is between an ab-

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Set shoulder 6a of the inner cylinder 2a and the rear end face of the cylinder 5a, around which a Cylinder 9 is pushed. The cylinder 9 has a front opening 8 which is coaxial with a front opening 11a aligned in the front end portion 10a of the inner cylinder 2a is.

The holder is to open and close the opening 8 with a Provided actuating device, the following structure: An actuating part 12 is slidably seated on the section Ja with a reduced diameter of the inner cylinder 2a within the annular space 7a, similar to the first embodiment, the actuating part 12 is fixed to a spring part 14, which extends out of the sleeve 1a through a slot 15a at the upper portion thereof, and a clasp 16 is attached to the outer section of the spring part 14. A compression coil spring 25a is between the stepped shoulder 6a of the inner cylinder 2a and the actuating part 12 switched on and constantly exerts a forward spring force on the actuating part 12.

The holder is at its front end with a device for opening and closing the opening 8 and the opening 11a provided, which has the following structure: The closure member is in this embodiment a screen 26a, which has a body 67, which is made from a long and narrow strip of metal and has a front upper end 68 which is used for masking and closing-the front opening 11a serves as in FIG Fig. 12 is shown.

The front end portion 10a of the inner cylinder 2a is along the front and lower outer surfaces are provided with guide grooves 69 and 70, the widths of which are approximately the same as the widths

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the body 67 and the front upper end 68 of the bezel 26a to guide body 67 and end 68 when the Aperture 26a actuated and moved in a path along the lower and front outer side of the front end portion 10a will.

The guide groove 70 has a sufficient length so that the end 68 of the aperture 26a can move into a position in which i the front opening 11a of the inner cylinder 2a completely is open. ·

The body 67 and front upper end 68 of the bezel 26a are inserted accordingly displaceably in the guide grooves 69 and 7'C, and the rear end 71 of the plate 26a is with the lower portion of the operating member 12 by means connected which is similar to that by which the rear end 23 of the connecting part 21 of the one described above first exemplary embodiment with the actuating part 12 connected is. Since the operating member 12 is resiliently urged forward by the coil spring 25a, there is dap front upper end 68 of bezel 26a normally in System with the stepped section 72 of the guide groove 70 * wo.iuroh the front opening 11a is closed.

The Sobreibeinheit 44a is in this embodiment with a Writing body, an ink supply body and an ink reservoir provided, similar to the writing unit 44 in the first embodiment described above.

Writing, the holder se is inclined so that the writing end points downwards, and the span 16 is pushed backwards, doh. in the direction indicated by the arrow B in "Fig. 11,

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whereupon the actuating part 12 and the diaphragm 26a are also moved in the same direction. That way it becomes front upper end 68 of the bezel 26a retracted to the front Opening 11a fully open, so that the movement of the writing unit 44a forward against the opening 8 by a Contact or abutment of the feed rod holding cylinder 47a and the writing tip 57 against the end 68 of the diaphragm 26a is not hindered vvird. The writing tip 57 is then moved forward and out through the opening 11a and the opening 8 and the front one Front side 63 of .Zuführstangencover 45 lies ^ egen a stepped portion 64a provided in the inner cylinder 2a, whereby the gatekeeper movement of the writing unit 44a is stopped will"

The clasp 16 is then moved from its rearwardly adjusted position released, whereupon the actuating part 12 moves forward · At the same time, a support section 65a of flat shape, which is provided at the extreme end of the front upper end 68 of the panel 26a, against a support portion 66a of stepped shape that is attached to the lower portion of the feed rod holding cylinder 47a is provided, whereby the writing unit 44a is locked »Thereupon the fountain pen is brought into a state ready for writing, as indicated in FIG is. . '

The writing tip 57 of the writing unit 44a is thereby in the inner cylinder 2a withdrawn, that first the clasp 16 is moved nadh back, whereupon the diaphragm 26a, like described above, moves in the same direction and the Support section 65a of the front upper end 68 from the support section 66a solves. The holder is then inclined so that its writing end faces upwards, whereupon the writing unit 44a slides backwards and the writing tip 57 retracts into the inner cylinder 2a. The clasp 16 is then moved out of it

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Rear adjusted position released, whereupon the actuating part 12 moved forward, and the front upper end 68 of the screen 26a slides forward and up and lays "against the stepped section 72, creating the front Opening 11a of the inner cylinder 2a completely closed is"

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Claims (1)

Pat ent claims 1. Capless fountain pen with a sleeve, an inner cylinder inserted into the sleeve and on its Writing end has a front opening, a locking device with a spine for opening and closing the front opening and an actuating device an actuator which can be operated on the outside of the sleeve and the closure member actuated, marked by a writing unit (44,44a) in a structural Combination of a writing body with a pedestrian tip (57), an ink reservoir (55) and an ink supply member (47) interposed between these parts, wherein the writing unit (44,44a) within the inner cylinder (2.2a) is arranged displaceably so that it is in this in both longitudinal directions under the action of gravity between a withdrawn position and a moved out position can perform a displacement movement in which the The writing tip (57) is moved out of the sleeve (1,1a) through the front opening (8,11,11a) after the closure member (26,26a) is open and wherein a portion (65,65a) of the closure member (26,26a) in the open state can be brought into engagement with the writing unit (44,44a) in the moved-out position in order to lock the same for writing and is detachable from the writing unit by operating the actuating member (12). 2ο capless fountain pen according to claim!, Thereby characterized in that the closure member is a The swivel flap (26) is attached to the edge of the front opening (11) of the inner cylinder (2) and pivoted by a The plunger (30) can be moved into the open and closed position, QO9885 / 0437 BATH ORIGINAL the duröh a connecting member (21) with the actuating member (12) is connected to the actuating device, 3. Capless fountain pen according to claim 1, characterized in that g e k e η η ζ β i c h η e t that a cylinder (9) around the front end portion (TOa) of the inner cylinder (2a) is placed that a guide groove (69,70) between these parts is designed to guide the closure member (26a) and dasβ the closure member is a hoop-shaped displaceable Orifice (.67,68), which moves in the guide groove (69,70) * bar is used and is guided through this. 4. Capless fountain pen according to claim 2, d a d u r c h Ge.k.ennee declines that a cylindrical cap assembly has a front end wall with a through opening (8) around the front end section (10) of the inner cylinder (2) is placed so that the front end wall in the forward direction from the front opening (11) of the inner cylinder (2) has a distance between one Form chamber in which the pivoting flap (26) can be moved into the open and closed position in a geechütsten position is, wherein the writing tip (57) in the moved up Position forward through the front opening (11) and the other opening (8) extended outwards. 5. capless fountain pen according to any one of claims 1,2, 3 and 4, characterized geke η η i ze ο h η e \, that the actuating member (12). of the actuating device is connected to a movably mounted clasp device (16) de * filling spring holder and can be actuated by this when the clasp device is moved manually. - ■■ J Λ - - 0 0 988 5/0437