DE6946259U - WRITING TIP FOR WRITING DEVICES - Google Patents

Description

Patent attorneys

Dipl.-Ing. A. Grünecker

Dr.-lng. H. Xinkelc'ey ^

Dr -ing. W. Stockmai?

S Munich 22, Maximil'mnsU. 43

PH 2833

Tokaji 5TJHAIiASHI No. 1, 2-cb.cme, Kitatakaoho-iacW., Hishi-ku, Najoya-chi, Aichi-ken, Japan

i'for writing implements

This e-'finauag "beaielit to Oine writing tip for Scbreibgorc. Fce \ tie ski * eibfedern _t Filssschreiber or the like.

Most used for writing implements this ax herkÖBiralicb, s nibs are formed £ b, that the end of an elongated rod-like structure * the suEämißfiJigofaßten from numerous to a schreibfcderähalichen rod and solidified, vurde formed in LängsricLtur.g closely associated filaments or daa made to the felt _s

pointed or like a set friction spring head shaped '.rarde. Such typewriter spits However, they have insufficient beards and insufficient ones Wear resistance, so that they are subject to rapid wear in use, easily expand or press wide and write thick or clumsy Söhrift oaks as the result. This Wear also causes partial clogging of the capillary structure, thereby reducing the flow of ink is made more difficult.

An object of the invention is therefore to provide an improved formation of a stylus, which as a whole has high strength, sufficient ⁿ Spi-th has "hardness and to deformation is extremely vriderstandsfähig that can be caused by the pressure exerted upon the writing pressure.

Another object is to provide a writing tip cord assembly, which may also can be used for an in-circling device.

With a writing tip of the type mentioned at the beginning

Art is provided according to the invention that are long available

elongated core elements / those made of wear-resistant and ink-resistant synthetic resin material manufactured and each gear-shaped in cross-section and have a number of ridges » which are formed axially on the cylinder circumference of the core element along its entire length, wherein a fine tubular opening in the middle the core elements is formed and all elongated core elements in a columnar or rod-like part are combined, would be the entire outer circumferential surface this rod-like part to obtain a coating with a liquid of a light fusible synthetic resin of the same kind, like that used to make the core elements, is coated and being fine Interstices are formed at the boundary between the casing and the elongate core elements on the one hand and between the core elements with one another on the other hand x-nd the Tip of this vessel in porst of a spring syringe is machined.

In accordance with the present invention, aleo provides an improved nib arrangement which consists of a plurality of core elements made of wear-resistant and ink-resistant synthetic resin, each of which is a gear-shaped element. Has cross-section and has a plurality of a * 3en projecting ridges. This is axially formed around the outer surface of the core element along its entire length in such a way that a fine tube-like opening in Λ ;. Add ^ mastics dee core member and st ^ e * ¹ Ken O elements summarized or Unite · are -. A form "substantially columnar or suangenf örm.l ^ * a part of the whole Außenumiang ^, C3 © 3 part is to UmBk ätelung with an i? lv Sigl Vü from readily sclnnelzbarem resin from de se material as that of the cores Lara duck \\ n he "ei turn a Strangpxesse ode ^ ainer other device coated" on the border siiacheL · this · jacket and 3s Kernels are as well as between *. ^ on Keiaelementüii themselves are finely - intermediate spaces formed, vjahrenci fas end ~ ^ consisting of the kernel elements, structure forms a pointο

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According to the invention, a writing tip for a writing implement is provided in which the ink contained in the latter spontaneously sucks in the ink by means of fine tubes of core elements and by means of fine gaps formed between a casing and the core elements and between the lee elements, thereby increasing the writing power. ru The G-ruiidgedtj: »i the S ^; - ^? ? nd.r> - -ζ is ai: £

Species ^ on PilKRciireibex ■ ■., Farlieranr? - u. ÖgJL. envienaoar, ^Vobe:; , r / ^ etß β fSr-ΛΓ contain. '"5 ink '5λ_ ,, P': i? Üib ·

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as well as gaps formed between the core elements themselves would be promoted, so that a smooth otrömung of the ink is always made possible.

All the disadvantages accompanying the conventional writing tips of such writing implements are "eliminated, for which reason" ie practical usability v.nd. The useful life of the writing according to the invention is pointed, extremely large.

All merlcmale and advantages of the invention yielded 8 lh. from the ^ olgenr'an Bescfc ibung ^ on examples using äer Su :, ^: mimg _o .Js shows ι

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In the version shown, let a

Writing tip according to the invention with a

'■■ a plurality of Eemelemente 3 provided, dia

; Made of wear-resistant and inkbeatä & digea

Synthetic resin material - such as bolyacetal,

] Polyamide, polypropylene., Polyäthylenhars -

are made · Each core element 3 tat

φ a cog-shaped cross-section and white

an Ansabl ridges 1, which are formed on its cylinder circumference along its gansen long in the Äsdal direction. In the cement of each core element 3 a fine tubular opening 2 is formed. All core elements are gusasamengefaßt a substantially columnar odor stangeaartigen rope ZM. The cc seist e CußcnuFfat-gsoberflache of this part is to form oiner sheath old a slightly Bohmelzbaren plastic resin ius same material as EJ ^ NCSS the Kernelexaente 3 coated · An iQjy boundary between the Uiaanaiitsluiig * and QTL Kemelsnfiiten 3 and zw.vgwheu the Kernelemeüten 3 ε xbst t- * ■ τ- "feino / Swicchenrätune? irorhu ^ den. Bps end of the stretched scöaftes by means of a grinding tool

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or some other device . oinor ground in a conical shape and forms a writing point 7

The reference number β in Fig. Λ denotes a conical part which can optionally be formed on the back of the writing tip 7 of the elongated shaft 6 so that in the state of use the area in contact with the ink can be enlarged in order to ensure that the Ensure ink.

Use of the present writing tip arrangement of the embodiment described in a writing implement, ζ · Β. a fountain pen, the nib is inserted into the fountain pen backwards at an opening of its neck so that the rear end of the casing 4 comes into contact with an ink source accommodated in the fountain pen next to the neck portion. As a result, the ink is directed towards the conical writing tip 7 at the end of the shaft 6 through the spaces 5 formed between a number of ridges 1 provided axially along its entire length on the cylinder circumference of each core element and through the spaces 5 at the boundary between the g

Core elements 3 and the latter covering um- I

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manfcelung 4- and ferxior through the fine tubular openings. 2 headed. These openings 2 are arranged centrally in the elongated core elements 3, so that the end of the writing tip 7 is always supplied with the amount of ink required for proper writing.

example

For the production of the writing tip arrangement according to the invention are initially elongated core elements 3 made of polyacetal resin in an extrusion or in an extruder processed into elongated strands, Each strand is gear-shaped in cross-section and has a length of 50 to 100 m and a central bore with a diameter of about 0.1 mm. Seven of these Strands are combined into a rod-like part, whereupon its entire outer surface with a layer of easily fusible synthetic resin of the same type as that used to make the core elements was used, coated and thereby an elongated, coated structure is produced. This is then cut into pieces of suitable length, for example about 50 mm. The end of each Piece is machined with a grinder or other device to a writing point a 7 *

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The above process can be performed on a mass production basis. Each of the cross-sectionally gear-shaped Eemelementes 3 has an outer diameter of about 0.4 mm and an inner diameter of about 0.3 in the groove bottom

Claims (3)

not necessary F. Ädern 1. writing tip for writing instruments such as writing, felt pen ο · 2βχ · the like, g β L e η n draw ty by elongated core members (3) the UNR of wear-resistant and made tintenboständigein synthetic resin material "t each zrlmradföjmig; eind in cross section ν .! a aine AD.zahl Rrp.te (1) aufveisen, di3 Entling on Zylinc ίϊΐωιίaiig of Kernolements ¹ aeiner gsELssen length are formed axially woTaQi a fine tubular opening (2) in the center of the core, re geb..Idet; , et and säidliche laxig, gestr · gIz'c <- Kernelemeatt (J) in a ■ jäuij) ii «· or e- ^ absirtigon l'ei '. summarized d: la.c _.; while <■'■"' . ■■ :: entire outer volume & ngsober-.f "· -" cl '^ this f ^ abar ^.'. Gen; ei; _ i between receiving a- ^ ''"-Emiar /! ^) Ig (4 ) ^ Iv: .dr ^? PlÜB eü Ar '. how ö' 'θ wtä? Ed. Sto.-xt ^ ,; d: e ^ o \, ϊΓΚοϊα - ^ - ό ^, nberzegen is, uc " ¹ ^ i feiv, 3 ^ viscb, .- nre ^ .me εη o.or Gx-ense de: Uaiaiantr ^ .ung (^) ur. ' i ■■■ ''. en läüsy -. '^ n'- ^Ί G /: -; ni · ^ · - ». (3) eirxerseii a> and between "the core elements (3) with one another on the other hand are formed and the tip of this Ge üges in the form of a Pederspitze (7) is machined. 2. .- ^ nib tip according to claim 1, "a d u r c h marked that the myriad of on each elongated core element (3) tooth « wheel-shaped cross-sectional ridges (1) ο is in the range between eight and ten 3. Writing tip according to claim 1 or 2, characterized characterized that oedes elongated Core element (3) zalmradföraigen cross section preferably an outside average of etv; a 0.4 iam and a head curl or tooth gap surface of about 0.3 rough bat » 4- ", Se ^ rüibspitae after pinein the preceding claims, characterized in that the T .rchiiesBor de? is in AEEI ^ Tiitte ijedes langp-estreckten Eo "neleinents ge οι (3)! de th feinea r irenfönaigen föuiig (2) is preferably about 0 ₅ 1 mm". • · I • 4 days • · t t 5 · Writing tip according to one of the previous ones Claims: he, characterized that the material from which each of the elongated Sernelemente (3) or their casing (4) is made of a wear-resistant and tin-resistant synthetic resin material - such as polyacetal, polyamide, polypropylene or polyethylene hara - is «,