DE1721604U - WRITING DEVICE, IN PARTICULAR BALLPOINT PEN, WITH BACKGROUND CONTROLLED SWITCHING MECHANICS FOR EXTENDING AND RETRACTING THE MECHANISM. - Google Patents

Description

The invention relates to writing implements, in particular ballpoint pens, the one actuated by push button su and controlled by a Zahnkullase Sehaltmechanik for extending the by a pressure tube enclosed writing lead in the writing position and for the return of the mine in the holder housing exhibit.

Sshaltkuliseen la the shape of ait tooth cutouts provided Sleeve-like elements, with their different depths of teeth j |

cut appropriate sehaltorgan work together, bind as |

Holders for writing implements xait vorschiebbarar and wie- J the retractable writing lead has been known for long and are used in · ..; manifold execution forasn manufactured. You have see ia |

t: Generally proven in practical use, but all up to l | known constructions noe &; certain deficiencies - ρ shown ^ namely one or more of the following ||

70b, 5/20. 1721604. Gcha-W-crke Ga. "... KrL, Hanover, j writing implement, ir.sbc-, -t. ί ·: Λ. special ballpoint pen, with tooth backdrop,

~ i controlled switching media for extending and retracting the writing cartridge. 274255.

The switching mechanism is too complex and therefore too expensive; ee no commercially available writing refills of normal training can be used »rather special refills must be used, the rear ends of which are provided with ratchet teeth; the handling when retracting and retracting the »visual mine requires special Attention and sensitivity due to the fact that the feed distance of the push button firmly connected to the pressure tube it is different in size; the switching operations do not provide a reliable definition with the desired inevitability the writing lead brought about in the extended position. One element that adheres to all ballpoint pens with tooth-cushion-shaped switching mechanism that has been brought onto the market is j also that there is no reliable safeguard against leakage j of the ink from the ink reservoir, which from j consists of a capillary tube, at the rear end of which is used to push the column of ink to the writing ball through the pressure the atmosphere must be provided with an air inlet opening. j

In the case of ballpoint pens equipped with Clipβ it is the case proved to be disadvantageous that the bearing bed for the writing ball is worn on one side, because the writing device ^ according to the clip j when used, always in a very specific writing position hold »ir». j

The invention has set itself the task of providing the 1

ί to remedy the defects described and a writing instrument with a f

to train switching schazilc controlled by a toothed gate f.

70b, 5110. 1721604. Geha-W «ke G ^ *, ΤΓ. bi-i .. rlannover. | Sdirabeerät, esp-, λ Μ; ι special ballpoint pen, with incl

I controlled Sdialtmeaanik for the Αικ-Ι ] and! retraction of the SdireJr «ainc. * 27J2o5,

that the degree of consistency of the writing instrument leaves nothing to be desired in any respect. This goal is achieved by the invention by none of the means or measures that are partially already known for eich alone, but which only result in the desired perfection of the sohrelbgerätea when they are combined. The invention is primarily seen in the combination of the following details »The pressure pipe is for the intake baw. Clamp mounting set of a commercially available Hormaliaine, the pressure pipe "eist no fixed connection with the Druskknopf and is the switching device so eye arranges that the S ehalt organ during retraction and extension of the iichrelbnine is that pressure tube ba". the pressure tube with the switching element rotates around the mine or the pressure tube old with the switching element and the mine rotates with respect to the fialter housing.

The non-fixed connection of the push button with the pressure tube is the key to solving the problem of sealing the pencil lead in the 'äeiae which has been returned to the position of use. that on or in the push button a sealing element is arranged which closes the air access opening located at the rear end of the TIntenaine when the pressure tube returned to the starting position by spring action is moved against the push button, and which releases the air inlet opening when the pressure tube and push button are moved apart.

Another Merkraal of the invention is _t that the writing shaft retraction beiia In the öohreibetsllung performs a rotational movement, the invention provides novel for its realization

SI

IS

is

70b, 5/20. 1721604. Geha-WerkeG.ni. '.. J

bH, haimover. j writing implement, esp-, O. l "'. ¹ ·. ί ^ ό f

, special ballpoint pen, with tooth backdrop a- ^: 1

Brings suggestions, further features of the invention and the calibration]

The advantages resulting therefrom are illustrated below with reference to the drawing, in which the invention is illustrated, for example,
explained in more detail * Es seigenj

Fig. 1 shows the longitudinal center section through one with the

erfindungogea & ßen Schaltiaechanik equipped
Ballpoint pen in the extended position
the ink mine,

2 and 3, on a larger scale, the two bushings from each other which form the switching gate
separated in longitudinal sections,

4 also shows the pressure pipe on a larger scale

with switching element fixed between two stops and

Fig. 5 shows a cross section through the pressure pipe in

■ I level of the switching organeo, which between two!

Anochlägen is rotatably mounted. I.

Bao housing of the writing instrument is made of the familiar color ί aue the tubular upper part a and towards the end of the letter j conically tapered, likewise tubular lower part b. Both 1 Parts a, b are sleeves of an externally threaded socket c 1

ί screwed together, which will be explained below, |

i -i forms part of the toothed Sohaltlculisae, g denotes the ||

Äbtssosungisn either kit Klema & ita or loose bags.

11 Eruckrohf, is welehe »a customary Sehxeibsiine i normal j I

7OK 5/20. '1 721 604. Geha-Werke Ga,,. ; bH, Hanover, j writing instrument, especially, <3. i ^v ;, *; ] & rj j special ballpoint pen, with toothed pin:

"j controlled switching mechanism for switching off and sis driving the ^ dircibinine. 27.12.55.

The scareibjaine 1 is, as is customary, a & front end with a prevented!

Diameter and carries at the tip of the Voräerendes j the rotatable description ball 1 · The uchreibzoine i penetrates »« enn it is advanced in the writing case (e.iig.i), & it the in Burclnaeeser stepped front end the axial perforation at the conical Writing end of the lower part of the housing b · The leading end of the mine is held in the bore of a cap-shaped piece of metal u and guided that in a surface recess of the conical Writing <3es housing lower part b is embedded. S.

The pressure tube g iat mounted with a thickened middle section in the bore of the bushing c and axially displaceable therein guided. A shorter socket e is firmly connected to the socket ο i, which also leads the pressure pipe in a central bore, the diameter of which, however, is slightly smaller than that of the socket c on the section serving for the storage of the pressure pipe ^ · Both sockets form in a combined and in a suitable manner firmly connected states the sleeve-shaped shift gate. Sugleich perforate the pressure pipe to prevent it from falling out of storage;

] The Sintenmine i has et "" ira lower third to a "ulst- vein bundertlge thickening ^, with which it is supported against supporting couple front edge dee pressure pipe g. Against the other side of the recess there is a centering piece β. On letsterea more ~ fc dis ia Sshäußettsierteil b housed spring r, another Bnde against a shoulder dee housing part supported Ii for-4 in iGsisTieter ^ sise && Gehäuseunt @ Advantage inextricably and unver- ||

■ ■. . ■ · ^: iP

rotatable fixed iat. The centering piece s preferably has a |

, bH Hannover \ writing utensil, especially, i.l'Ui Ιύϊύ j special ballpoint pen, with toothed link

i controlled Schairmechanik i'ür the training [I and retraction of the writing shaft. 27, i2 55.

square cross-section and is in a guide sleeve y sit an inner bore of corresponding square cross-sections -

secured

form guided axially displaceable against rotation.

A second compression spring ρ arranged in the upper housing part a is with one linden tree against the sleeve c and with the other end against the one located at the end of the upper housing Push button η supported. Si © has the Beatreben, the push button to be pushed outward to the extreme position, in which a widened and hollow inner sin of the pressure - button against the shoulder v. of the upper part of the housing.

The pencil lead 1 is inserted into the bore of the hollow push button part with some play. With extended writing shaft has the atmosphärieche air free 2utritt to deni m air hole at the rear Abechlußvsard the writing lead, whereas in the retracted state of the mine, the air hole through a part mounted in the hollow push button ο seal is closed.

As is known, shift teeth with tooth gaps of different heights d., U ₂ and f are formed on the inner surfaces uex guide bushings c and e. In the execution examples of the SIg. 3 and 4 Bind the switching teeth d ^ dg and f in such a way that the pressure tube g rotates through 120 ° "when the pen is once extended and then pushed back into the old-fashioned mouthpiece" The rotary movement and holding of the pressure tube g Kit of mine v.-earth by radial switching—

. bra,; Hanover. J writing implement, iiisbe-. C, MkI loo » \ special ball whisk, with toothed backdrops;

lG_ ₍ 12..S12 .._

■ j controlled switching mechanism for the off-1

Lg'Ü; "

pins ζ brought about with the tooth recesses d .., d ₂ and f

how / the Schaltkuliase in the known Ys ice / follows interact. When the pressure tube is pushed forward, the switch pins ζ slide on the tooth flanks of the socket β that delimit the tooth recesses f along into their tooth recesses f and thus cause the switch element or pressure tube to rotate when the switch pins are firmly connected to the pressure tube. If, after releasing the push button η, the pressure tube g is moved inwards again by the compression spring r, the switching pins ζ meet the oppositely sloping flank teeth of the socket c and slide alternately into the less deep tooth recesses d ₁ or into the deep tooth recesses dg.

If the switching pins r find a limit stop at the deepest points of the tooth recesses d ₁ , the further return stroke movement of the pressure tube g is limited so that the tip of the pencil lead is held in the extended position. However, if the shift pins in the deep tooth cutouts ä _r occur äann the compression spring r the pressure tube with the mine to the starting position pushing back, in which the rear Mine end with the air vent m against the seal ο applied.

To a one-sided loading of the pressure pipe g and a possibly resulting I jamming of the pressure pipe to the To avoid bearing and guide terminals of sockets c and e, are about the. circumference of the pressure tube evenly distributed several in the example shown three - j offset by 120 °: | Shift pins r attached. The switch pins can either * de

TAU f / ΙΛ t TII έηΛ / - »- I / vri * ^ - .WU. J _t t. * J. AiZ-AVJVT. VJClIS- VT-CfiCe VTM

Writing instrument, esp Special ballpoint pen, with a rahnculture- ΐ

1 controlled sdiaitmechanik for the exit

] and retraction of the writing lead. 27.12.55. • ■ ·, ':

LG-, 12 812. (T.J2; line 1) - '-H: Vj _ ^ ^

-—-—- γ ^ ü

already mentioned, the pressure pipe is fixed, for example soldered directly into the bores of the pressure pipe "In this case the pressure pipe g is twisted a little" with every switching operation, so that the 3 honorable ibmine i, see it, is fastened in the pressure pipe with clamping time, one performs a corresponding rotation. This offers the advantage, especially for ballpoint pens equipped with clips, that the bearing bed for the writing ball 1 is not always worn in the same place, that rather, after each switching operation, other areas of the bearing bed absorb the pressure of the writing ball and consequently uniform wear of all areas of the bearing bed takes place.

lird the pencil i is not clamped in the pressure tube, j but pushed in so that it is not rotated by the rotating pressure tube ait ge, then performs the pressure tube g with the switch pins attached to it z. just a twisting motion. Instead of the Schaltgtifte r fixedly attach directly to the outer surface of the printing j tube g, they can also be buttocks Fig. 4 h arrange the drawing on a ring, the g ₁ of the Druekrohreß between a collar X and reared on daa pressure pipe sleeve Xg is fixed in a non-rotatable manner.

The sing hk "nn with a correspondingly strong training finally lent, as it is shown in Mg. 5 of the drawing, can easily be rotated and disordered" Here during the switching movements only the switching element provided from the ring with the switching pins ζ performs a rotary movement _? whereas pressure pipe g and i> chxeib-

j controlled SdiaitiEcehaniic for Has Aus-1 and! retraction of the writing lead. 27.12.55. j

sine i only make axial sifting movements. In this j

I trap is therefore on a rotary movement of the writing lead at one j

and extending consciously, renouncing.

For the above-explained embodiments, in which the writing lead i aich rotates when retracting and extending relative to the holder housing a, b, the arrangement can be made so that the writing lead does not quite follow the rotation of the pressure tube g during the holding movements; but always lags a little behind the rotating pressure pipe. The uniformity of the wear of the bearing bed of the writing ball 1 in ballpoint pens, which are always kept in the same writing position because of the clips usually attached to them, is achieved in this catfish to an even greater extent. The desired rotary soleplate of the writing lead in relation to the pressure tube can be achieved in that the lead i is only slightly clamped in the pressure tube g. The same success ^ is achieved with a switching element h, x rotatably mounted on the pressure pipe g (according to Pig. 5), if the Sing h is arranged with such a sliding fit on the pressure pipe or is so tightly _{fitted between the stops JUjX 2} that it is at The pressure pipe rotates a little bit with the rotation due to frictional engagement. |

In addition to ballpoint pens, the advantages of the invention J can also be used for filling pencils with retractable and retractable refills j

■. ■ ■ '-.91

be exploited. J

- 10 -

Claims (9)

? Obj 5 / 2-0 = i 72ί 604. Ge'hs-W.erke Gm. ₅ - b ~ fi., Hannover, j writing implement, nisbe-. · ^>>'R special ballpoint pen, with tooth link set-. ! Controlled switch mechanics for the Auslund Entrance of the writing mine. .27,12.55. LGJ & S12. .JL JIuZ ,. n ^ —i. ^ _ - 10 - 1 · Writing utensil, especially a ballpoint pen, old one to be operated by a push button and by cissc ZahBloxliss © gs— SchaltiEechanik für da © Bin— and Ausisthren aer von Bruekro.hr U2s®shlo © sönen Sclrrei "baine _f by gokonn- that the me ufiiahiz ^ or * Klerjasefostung a Hormalsine (i) set up pressure pipe (g) festival © Verbisätins alt dom öruokrohr (n> and the switching element (2 fea «r · h» z) home entry and exit «dsx writing— EiiTKj is around the bridge pipe or the pressure pipe ait the switching element the mine odor the Eruc & Rohr nit the switching organ and that mine turns towards desi fEaltargahSusG (a »b)» 2. KUgalsohroi ^ er naoh claim ί , thereby gs & eimsiölohn & t »that from odar in the push button (η) an Äbdichxungselemeat (o) is arranged, wolehe0 the at the rear end of the üMnteniaiaa (i) bofiadliohs LuftsutrittsSffaun ,? (n) veraohlisSt, -, venn daa through (r) into the Aüsgöiigäätöllung 3urCioJcg © fUlirte Brue!: - ■■ ■ '· ■■■■ - ■ - den l> raoS3criopf (a) herajahewsgt is _f and which Sttlttstrittsöffnang iroi si «*» if Bruolcröhr (g) and (a) auaöiaaaäeygejeüukt oind 7Gb, 5/20. 1721604. Geha-Werke Gm ^ bH, Hanover. J writing implement, especially - '<i special ballpoint pen, with zahakuiisseri-; Controlled switch mechanism for extending and retracting the refill. 27-2.55. LGt, 11812. "JJ" M JZJu. --——- -U; J - 11 - 3 »Söfexsibgsrät according to claim 1 · characterized in that the switch gate gas in one of the division of the 2ahnaussnehiaungen (« -t-äg the Schaltkullsee (e _$ e) aagepaSten arrangement over the evenly distributed moreora, ^ s for example d.roi, with the Schaltkullaoe Zusassaexroirkend © radial switch pin © (*) catches up * 4 · S <shr © lbg @ advises according to claims 1 and 3 'labeled in characterized "is characterized in that the Sohaltotifte (r) seated on a hing (h), which on the pressure pipe (g $ between stops (χ ^ χ ^) is non-rotatably rotatably arranged 5 · Writing instrument according to claims 1 and 4 »characterized in that with the switching element (h« s) arranged in a pressure tube (g), the writing line (i ) is only so tightly stuck into the oil tube ig) that the control element is only so tight the writing mine (i) is rotated by the ventilation opening nxcc over a layer of the rotary hot tub of the pressure pipe · 6 * Writing instrument according to claims 1 and 4 »characterized in that, with the switching element (h, Jp) mounted rotatably aa pressure tube (g), the latter is so closely arranged on the pressure tube» 4e9 the iJfuek tube old 4 ©? Sehreibaina (i) clamped in it is only sdtgedreated over a rope of the Darehstrecken dee Schaltorganea (hj. ^) * j controlled switching mechanism for the off-j ! and retraction of the writing lead. 27.12.33. | LG.12312. (X..12; Ζ, υ ^. ^ "^ .- J 12 - 7. Sliding device according to claims 1 and 2, characterized in that the Vorachubstrecken of the push button (s) returned to the starting position after each switching process by the spring * lrkung (p) for moving the refill (i) is the same v / ie the one for triggering the locking of the switching element (h _r s.) for the purpose of positively returning the writing lead (i) to the withdrawn non-use part. S. writing implement naoh claim 1 _r characterized in that the return stroke spring (r) dee Bruckrohree (g) in the lower part (b) of the Baltergehäuces (a, b) iet fixed and non-rotatable. 9. Writing implement according to claims 1 and 8, characterized in that the force of the return spring (r) on the pressure tube (g) with aex writing lead ^ (i) transferring centering piece (s) has a non-round cross-sectional shape and in a sleeve (^ ) with a corresponding non-circular inner bore secured against rotation and axially displaceable.