Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K1/00—Nibs; Writing-points
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K8/00—Pens with writing-points other than nibs or balls
  • B43K8/16—Pens with writing-points other than nibs or balls with tubular writing-points comprising a movable cleaning element
  • B43K8/18—Arrangements for feeding the ink to the writing-points
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K1/00—Nibs; Writing-points
  • B43K1/06—Tubular writing-points
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K8/00—Pens with writing-points other than nibs or balls
  • B43K8/02—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material

Definitions

• the invention relates to a writing tip for a writing instrument filled with a writing liquid, which has a writing liquid reservoir and liquid channels with a liquid control system leading from it to the writing tip, and a writing device for this writing tip.
• Glass nibs are known from the prior art and have been produced by hand, starting from a glass rod profile, preferably a round profile, or a profile with a polygonal cross section. If such a glass rod profile made of glass is heated and elongated by pulling, a conical tapering results which can be severed at the narrowest point, so that a tip profile is obtained.
• a glass rod profile made of glass is heated and elongated by pulling, a conical tapering results which can be severed at the narrowest point, so that a tip profile is obtained.
• grooves made in the glass body shell for example by casting, can be twisted into a helical or spiral shape by rotating one glass profile rod towards the other end beyond the later separation point.
• a fountain pen with a solid spring preferably made of glass
• the spring can also consist of stone, metal, plastic or other suitable materials.
• the spring has a much smaller diameter than usual of only 3 mm and less. Springs with such a small diameter should be softer, not as scratchy and hard as that Springs with the usual large diameter; in addition, such a thin solid spring should be more flexible than the springs of large diameter due to the elasticity to the pressure fluctuations when writing. In order to prevent such a thin spring in the event of impacts, vibrations and the like. breaks off, the spring is mounted close to its tip in an intermediate piece which is inserted into the fountain pen housing.
• the intermediate piece In order to improve the capillary action of the fine spring grooves of the spring, the intermediate piece not only lies against the head and tip of the spring, but also extends to the spring tip over the entire length of the spring. This intermediate piece also has collecting spaces for collecting the strong ink flows which occur during vibrations.
• the ink feed grooves which have been introduced cannot be formed with sufficient fineness; it is also not possible to guide the grooves for the ink supply in the manufacture of glass nibs to the end tip area, but an ink supply into the writing tip can only be achieved by reworking the writing tip. As a result of this subsequent processing of the writing tip, which has to be reground, each glass nib has different writing properties. A mechanical series production of glass nibs with a constant design, shape and writing properties of the writing tip was therefore not possible because of the subsequent processing of the writing tip.
• the nib should also be wear-resistant.
• the writing tip consists of an elongated, rod-shaped ceramic body with a conical, tapered end with a rounded tip in front of which a first cylindrical part with a waisted section adjoining it and a connects second cylindrical shaft part, the first cylindrical part having on its circumference a number of capillary grooves extending in the ceramic body longitudinal direction and extending from the tip end over the first cylindrical part to the waisted section, which are connected to the liquid channels and which into the Transition area from the first cylindrical part to the waisted section formed peripheral ring surface.
• the writing tip consists of a ceramic body with a first conical part that tapers to its end and a second conical part adjoining it, both parts of which have a number of capillary grooves running in the longitudinal direction of the ceramic body on their circumference extend over the entire length of the writing tip and which end on the one side into the end of the ceramic body and whose other ends end in recesses provided on the end side.
• Ceramic material has the advantage of a lower brittleness compared to glass, ie it is less prone to breakage. Furthermore, a ceramic can be machined better, so that sufficiently fine capillary grooves can be formed which protrude into the tip end area.
• the ceramic writing nibs can be made to size; one writing tip corresponds to the other writing tip. Even very thin writing tips have a high degree of rigidity.
• This improved ink flow is supported by the capillary grooves on the circumferential side of the writing tip, which run in a straight line in the direction of the longitudinal axis of the ceramic body towards the tip end.
• this parallel longitudinal guide in the axial direction significantly improves the ink flow to the tip end region of the writing tip.
• the capillary grooves are preferably designed as V-shaped indentations in the cone jacket and approximately adjacent jacket pieces of the writing tip. These V-shaped notches can consist of rounded wall parts which converge to a point in a gap. In particular, the rounded wall parts of a notch can merge with the adjacent notch in a continuous arc into the next V-notch.
• the capillary grooves are preferably arranged spaced apart over the entire circumference, according to which, in a further embodiment of the invention, the number of capillary grooves should be six to ten, advantageously eight. These measures serve to optimize the supply of writing fluid to the end of the writing tip.
• the invention encompasses all writing tips of different lengths, that is to say also those which are equipped with a cylindrical barrel area or other connecting pieces or adapters.
• “short” and “long” writing tips are essentially cylindrical following its conical end, it being possible for there to be a preferably conical intermediate piece with a more acute cone angle between the conical end and the cylinder.
• the capillary grooves extend only over part of the writing nib and end in an area which is connected or can be connected to the liquid channels of the writing device. The part of the writing tip facing away from the writer, the shaft part, therefore does not need to be traversed with capillary grooves.
• the area connected to the liquid channels or the area connectable to it is preferably designed as a waisted section.
• This section is drawn in like a neck opposite the writing tip.
• the ink-guiding system of the writing instrument opens into the waist region formed by the indentation.
• the conical end of the writing tip can be cylindrical, ie, shaft-shaped, following the waisted section.
• the entire writing tip, including its barrel, is expediently made of ceramic.
• the writing tip ends in the area that can be connected to the writing liquid control system of the writing instrument.
• the capillary grooves extend over the entire length of the conical writing tip, the writing tip being provided with recesses on the end face, which extend into the capillary grooves and are connected to the writing fluid reservoir of the writing instrument, preferably with one Ink-soaked fiber body in contact.
• the cone shape of the writing tip is expediently designed in two stages with two different cone angles.
• the second cone angle is designed to be substantially flatter so that a sufficient friction or form fit can be created over the length over which the writing tip is locked in the writing instrument or an adapter.
• the taper in the tip end area and the associated deflection of the capillary grooves in this end area compared to the capillary groove section which is formed in the area of the writing tip which adjoins the tip. The ink flow is thereby improved and the elasticity is moved to the tip end area.
• the ceramic writing tip is injection molded or produced by sintering, which is in particular a ceramic made from a matrix based on aluminum oxide.
• a writing tip with such specific technical configurations can also consist of other suitable materials.
• this writing instrument relates to a writing instrument a writing tip, which is filled with a writing fluid, and has a writing fluid reservoir and at least one fluid channel leading from this to the writing tip with a writing fluid control system.
• this writing instrument consists of a sleeve-shaped body which is open at the end and is provided with a shaft part with an annular adapter held in the opening for holding the writing tip. The tip of the writing tip is guided into the sleeve-shaped body of the writing instrument and held in it by means of a cylindrical holder.
• the liquid channel formed in the interior of the sleeve-shaped body opens into the waisted section of the writing tip, which consists of an elongated, rod-shaped ceramic body with a conical, tapering end with a rounded front tip, to which a first tip is attached cylindrical part with a waisted section adjoining this and a second cylindrical sheep part, the first cylindrical part having a number of circumferentially extending in the ceramic body longitudinal direction and extending from the tip end over the first cylindrical part to has capillary grooves extending to the waisted section, which are connected to the liquid channels and which open into the circumferential annular surface formed in the transition area from the first cylindrical part to the waisted section.
• the writing device also consists of a sleeve-shaped body which is open at one end and is provided with an annular adapter held in the opening for holding the writing tip.
• the writing tip itself consists of a ceramic body with a first conical part that tapers to an end and a part that adjoins it adjoining second conical part, both parts having on their circumference a number of capillary grooves running in the longitudinal direction of the ceramic body, which extend over the entire length of the writing tip and which end on one side into the pointed end of the ceramic body and which end with their other ends in Recesses provided on the front end.
• the adapter inserted into the opening of the sleeve-shaped body of the writing instrument has a through-hole receiving bore which corresponds to the external shape and the length of the second conical part of the writing tip, a fiber pen being arranged in the center of the sleeve-shaped body and having its end face facing the writing tip the face of the writing tip.
• the liquid channel in the interior of the sleeve-shaped body of the writing instrument opens into the fiber pen, so that the writing liquid passing through the liquid channel and the fiber pen flows into the recesses of the writing tip and from there into the capillary grooves.
• FIG. 1 is a longitudinal view of a writing tip in a "long" embodiment, consisting of a body with capillary grooves and a pointed end with a waisted shaft part,
• 2 is a front plan view of the writing tip
• 3a is a cross-sectional view along the section line AA in Fig.l
• 3b is an enlarged cross-sectional view taken along section line B-B in Fig.l,
• FIG. 5 shows a longitudinal cross section through the section of a writing instrument carrying the writing tip in the “long” embodiment
• FIG. 6 is a longitudinal view of a writing tip in a "short" embodiment
• FIG. 7 shows a front plan view of the writing tip according to FIG. 6,
• FIG. 9 is a cross-sectional view taken along section line A-A in FIG. 6;
• FIG. 11 shows a plan view of the enlarged end face of the writing instrument according to FIG. 6 and
• FIG. 12 shows a longitudinal cross section through the section of a writing instrument carrying the writing tip in the "short" embodiment. Detailed description of the invention and best way to carry out the invention.
• the writing tip 10 as a spring for writing utensils e.g. Fountain pen
• Fig.l consists of an elongated, rod-shaped ceramic body with a tapered, tapered end part 101, which has a front rounded tip 101a.
• This end part 101 is followed by a first cylindrical part 102 with a waisted section 103 adjoining it, which merges into a second cylindrical shaft part 104, which expediently tapers to its free end 104a.
• the first cylindrical part 102 has on its circumference a number of capillary grooves 11 running in the longitudinal direction of the ceramic body and extending from the pointed end 101a over the first cylindrical part 102 to the waisted section 103, which are formed in the lateral surface of the parts 101, 102. on. These capillary grooves 11 are let into the circumferential surface and extend from the pointed end 101a to the waisted section 103, i.e. The ends of the capillary grooves 11 open into the peripheral surface 102a, which is formed by the neck-like retraction of the waisted section 103 and the shaft part 104 adjoining this.
• the capillary grooves 11 running towards the pointed end 10la run in a straight line in the direction of the longitudinal axis of the ceramic body and are brought together in the pointed end 101a.
• the capillary grooves 11 preferably consist of V-shaped notches (FIGS. 3a and 3b). preferred embodiment, the V-shaped cross-sectional area 11a of each capillary groove 11 merges into a circular area 11b (FIG. 4). In this embodiment of the capillary grooves, the capillary effect is significantly increased and the ink flow of the writing tip is improved.
• the writing tip 10 is inserted into a writing instrument 50, e.g. Fountain pen used, which consists of a sleeve-shaped body 12 which is open towards its front end 12a and which has a ring-shaped adapter 13 for holding the writing tip, which is inserted into the opening of the sleeve-shaped body 12 and held therein .
• the adapter is preferably held by a press fit.
• the sleeve-shaped body 12 and the adapter 13 expediently consist of a plastic, in particular a resilient-elastic plastic, so that the adapter 13 is securely held in the opening of the sleeve-shaped body 12.
• the adapter 13 and the writing tip 10 can form a unit, wherein the adapter 13 can also be used as a handle for replacing the writing instrument 10 if, for example, a writing tip 10 is provided with a differently shaped pointed end 101, 101a to obtain a different and desired thicker or thinner writing line.
• a liquid channel 14 is formed which opens into the waisted section 103 of the writing tip 10, as a result of which a reliable flow of writing liquid is achieved. All parts of the writing tip 10 are thus covered by the adapter 13 or the sleeve-shaped body 12, with the exception of its pointed end 101.
• the writing tip 20 consists of a ceramic body with a first conical part 210 tapering to an end 201 and a part 210 extending thereon adjoining second conical part 202, the two parts 210, 202 having on their circumference a number of capillary grooves 21 running in the longitudinal direction of the ceramic body, which are designed corresponding to the capillary grooves 11 of the writing tip 10 and which extend over the entire length of the writing in the writing tip 20 ⁇ extend the tip and end in the tip end 201 of the ceramic body.
• the capillary grooves 21 open into recesses 22 which are formed in the end face 202a of the writing tip 20 (FIGS. 6, 8 and 11).
• the recesses 22 are provided at the end, which extend into the capillary grooves 21 and open into these.
• FIG. 12 The installation type of the writing tip 20 according to FIGS. 6 to 11 is shown in FIG. 12 on a writing instrument 50 '.
• This writing instrument 50 ' has a constructional configuration similar to that of the writing instrument 50.
• the writing instrument 50 ' also consists of a sleeve-shaped body 12 which is open at one end and is provided with an annular adapter 23 for holding the writing tip 20 which is held in the opening formed at one end of the sleeve-shaped body.
• the adapter 23 has a writing tip receiving bore 23 which corresponds to the external shape and the length of the second conical part 202 of the writing tip 20.
• a fiber pin 24 is arranged in the middle in the sleeve-shaped body 12, which with its The end face 24a facing the writing tip 20 abuts or is placed on the end face 202a of the writing tip 20, the liquid channel 14 formed in the interior of the sleeve-shaped body 12 opening into the fiber pen 24 in such a way that the liquid channel 14 and the fiber pin 24 pass through it Writing liquid flows into the recesses 22 on the end face 202a of the writing tip 20 and from there into the capillary grooves 21.
• the fiber pen 24 is held by means of a sleeve-like holder 25 in the interior of the sleeve-shaped body 12 of the writing instrument 50 ', this sleeve-shaped holder 25 being dimensioned shorter than the length of the fiber pen 24, so that a holder-free area 24b is obtained, into which the liquid channel 14 for guiding the writing fluid (Fig. 12).
• the diameter of the fiber pen 24 is dimensioned such that when the fiber pen 24 is placed on the end face 202a of the writing tip 20, the fiber pen overlaps the recess 22 in the end face 202a of the writing tip 20 so that the writing fluid flows properly to it Tip 20 is guaranteed (Fig.11).
• the adapter 23 has a write-tip receiving bore 23a which is designed in accordance with the outer shape of the second conical part 202 of the writing tip 20, so that, due to the conicity of the part 202 of the writing tip 20, the writing tip 20 is firmly seated and held properly in the adapter 23 is.
• the adapter 23 expediently serves as a handle for replacing the writing tip 20, the adapter 23 being able to be designed with a grip profile on its outer circumference.
• the length of the adap ters 23 to the writing tip 20 is selected so that only the tip-shaped end 210 of the writing tip 20 is released.
• the writing instrument 50 'can also be provided only with a fiber pen soaked with writing fluid.
• the liquid channel 14 serving to supply the writing liquid can also open into a fiber stick 24 of short length.

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Applications Claiming Priority (3)

Publications (1)

Family

ID=6887458

Family Applications (1)

Country Status (10)

Families Citing this family (6)

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• 1992
  • 1992-12-22 DE DE9217540U patent/DE9217540U1/de not_active Expired - Lifetime
• 1993
  • 1993-07-09 HU HU9501645A patent/HU9501645D0/hu unknown
  • 1993-07-09 PL PL93308843A patent/PL308843A1/xx unknown
  • 1993-07-09 BR BR9307708-4A patent/BR9307708A/pt not_active Application Discontinuation
  • 1993-07-09 JP JP6514715A patent/JPH08504695A/ja active Pending
  • 1993-07-09 KR KR1019950702591A patent/KR950704124A/ko not_active Application Discontinuation
  • 1993-07-09 AU AU45667/93A patent/AU4566793A/en not_active Abandoned
  • 1993-07-09 CZ CZ951625A patent/CZ162595A3/cs unknown
  • 1993-07-09 WO PCT/EP1993/001796 patent/WO1994014623A1/de not_active Application Discontinuation
  • 1993-07-09 EP EP93915860A patent/EP0675810A1/de not_active Withdrawn

Non-Patent Citations (1)

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