DE1461616A1 - Ballpoint pen with a refill that can be switched by a push button - Google Patents

Description

P 1086

—1-4.6.16 IB

C jQamt L amy Heidelberg, Grenzii'df erweg 32

Ballpoint pen with switchable by a push button Writing lead · Zuaats.su Patent .. · (Patent application L 38 980 x / 70b) ·

The invention relates to a ballpoint pen with a pressure » button switching switchable during the switching process in each case by their Long axis rotatable writing lead, in the front part according to. "

Patent ··· (Patent application L 38 980 X / 10b) a radial cam is arranged, which supports the pencil lead in the writing position on a guide piece arranged in the front part of the ballpoint pen shaft a clamping guide

· 0.dgl the mine shaft tip pens in relying "After the H _a uptpatent the Mint of the ballpoint pen shaft is used one of the usual backdrop switching devices for switching back and forth, the upper half of the mine * the hint he end bearing ·

is. 909816/0029 ^ ,.

BAD ORiGiNAL

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One object of the present invention is the construction of the ballpoint pen according to the main patent both to simplify and to enable additional benefits. According to the invention, the simplification is achieved in that the in the front part of the mine

radially arranged cams as switching cams with one in the front immediately

part of the ball write shaft it is arranged in a sleeve-like mine ^ surrounding backdrop works together * The support of the mine This guarantees against lateral wobbling in the same way as according to the main patent, but it is not necessary except for a guide post for the mine, the usual one To arrange gate circuit above the mine, so that one component is saved compared to the main patent. Apart from that, allowed it is the arrangement of the schalt kaiiss e in the front part of the pen barrel the end of the pen can be as slim as you like to train, while the lower part serving for access! has a handy strength. Another advantage is that the entire switching device can have a longer service life, because the part that is mainly stressed, namely the switching cam, is inevitably exchanged when changing the refill · IJm completely eliminates incorrect switching. and at the same time one to bring about an audible indication of the mine engaging, the Shift gate be subdivided in a manner known per se into an upper and a lower gate part, of which the lower gate part the upper link part opposite by a small amount against a spring so movably mounted in the ballpoint pen shaft is »that he is on the downstroke of the switch cam of the mine can give way resiliently. It is possible to use the

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Lower JSuIi saent part partially rotatable but axially fixed in the ball pen shaft, whereby the spring loading it is supported on a nose or the like of the upper KuIIsa part 4, which limits the rotatability of the lower KuI iiss ent. As a result of the resilient arrangement of the lower cam track parts β eu is possible to provide, if necessary, a ballpoint pen, the refill in the first part of the stroke in writing st RECOVERY engages and returns at -weiterem Herabdrüoken in the rest position and namely in that the upper pen ss ent part has a detached latching point for the switching cam at about half the lifting height, which is pressed into this latching point by the spring at a et et en lower link part »It can be advantageous in the curve limitation

of the lower link part a paragraph for the stop of the Switching cam approximately at the level of the detent parts, which prevents switching through in the same stroke

The drawing shows two exemplary embodiments of the invention illustrated. Show it

1 shows a ballpoint pen in view, FIG. 2 shows an individual representation of the mine, FIG. Fine cross-section through FIG. 2 at the level of the switch cam,

Fig. 4 eifcen ballpoint pen, in longitudinal section, its holding backdrop is arranged in the front part of the pen barrel *

9098167 0029 bad original -4-

fig. 5 shows a second embodiment of a ballpoint pen a im Longitudinal section with subdivided Sohaltkuliese, the lower part of which is arranged partially rotatable in the ball-ear overhead with mine shown in booing position »

Fig »6 shows a ballpoint pen according to FIG. 5 in the writing position Mine·

The pen consists of one, as usual, in the transverse direction divided shaft 1, in the rear end of which a push button 2 is arranged to be longitudinally movable · The shift gate 4 »5 can, as Illustrated in Fig. 4, consist of one piece and is in Ballpoint pen shaft 1 cannot be displaced in the longitudinal direction For manufacturing reasons, the backdrop can of course also consist of two parts, which, however, prevent mutual rotation are secured in any way · The write; Mn β 16 is in this envelope-like switching gate 4 »5 is inserted immediately, its cams 22, which are arranged in the front part according to the main patent, have corresponding bevels 22a and thus work as switching cams with the cam track of the gate 4, 5. the Mine 16 is in the sense of its backward movement under the influence of a spring 16a which, as usual, is supported in the tip of the spherical ear overhang. In Fig. 4, the switching cam 22 is in Writing position of the mine shown fully extended, he being is in the usual way at the reversal point of the Sohaltkurve in the upper Link part 4 is supported. Is activated by pressing the button 2 If the mine moves downwards, the switching cam 22 comes under the

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■ 1461618

It flows along the curve of the older pen and becomes, as in the Ivory line illustrates, while twisting the Mine spent in the ascending branch of the curve, so that the Ii $ e take the Buhest position under the influence of the lead spring 16a 'can ·' _ ... ■ · .... . ..

If it is caught, failed circuits with -völliger security auszusciiliessen and equilateral create zn mine an audible indication of Baststellungen, the structure can, according to FIG. 5 and 6 _ hit seia. Here, the lower link part 5 is separated from the upper part 4 and, as shown, is axially immovable but partially rotatable in the circumferential axis or the like of the upper link part 4 or the ball writing shaft 1 and endeavors to turn the lower link part 5 with respect to the Dell 4 so that its switching curve limit approaches the curve limit of the upper link part 4. As illustrated in FIGS. 5 and 6, the upper gate part can have a stepped latching part 25 at half the lifting height The curve of the lower part of the gate has a shoulder 26 * The distance between the curve limit and the part forming the hasty part 25 of the upper gate! Distance between the Sohrägflächen 22a and 22b of the switching cam _s 22. When Drmek on dea Druötoopfg moves <£ Le 'itLne

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with the switching cam 22 downwards, whereby the lower inclined surface 22a of the cam 22 comes to rest with the curve delimitation 26a and, with further pressure on the push button 2, the lower link part 5 is rotated against the action of the spring 23 relative to the upper Eulias part 4, so that the Cams can slide through between the rope 25a and the curve limit 26a. The lower surface 22c of the cam 22 is supported on the shoulder 26 so that the lead can no longer be moved further downwards in the same stroke.As soon as the pressure on the push button 2 is released, the lower link part 5 rotates under the action of the spring 23 and brings the cam 22 scum secure and audible click into place 25 »so that the mine is now in the writing position. This position is shown in FIG previously described, turn a small amount against the action of the spring 23. Der'Node eh "22 can * then, as soon as it has come free from the lower end of part 25a, be pivoted by the action of the spring 23 into the rising euro part 27, in which it is in the hatched position when the push button 2 is released The disengagement of the cam 2fi from the part 25a provided with the latching point 25 takes place audibly, whereby above all the rotation of the lower KtHi ss eat eil es 5 under the firing of the spring 23 forms a safeguard against it, ämas

Oäx cam 22 when the push button 2 is released back into the

■ 'ν place 25 could slide back.

BATH ORIGINAL

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Of course, the ascending branch of the curve of the parts 4 »5 should be guided in the same way as in the case of the link part 4» S, as shown in the figure. 4 # «if the mine of SohaltvorgsJ & g * & switching process rotates further. The latter, however, is only assumed in a ballpoint pen equipped with a clip (not shown), since such a pen is always held in one and the same position when writing as a result of the clip. Di "further rotation of the mine at each Sehaltvorgang then prevented on borrowed known Wife ·· a unilateral wear Schreiblcugel-1 tion age · If, however, be a ball he read without M

Clip is not of particular importance if the lead continues to rotate at all times in relation to the ballpoint pen shaft.

It is also possible, the lower part 5 of the backdrop opposite the upper part 4 fixed in the circumferential direction, however, against a spring store axially downwardly displaceable by a certain amount su. They effect with regard to the engagement of the gear hook in the dl « Rest point 25 is the same as in the arrangement according to fig. 5 · In Both cases, however, are part of the spring-loaded lower gate causes a clearly audible engagement and disengagement of the switching cam · 2g what is generally pleasant when handling the ball a oh rub he β is felt · you sow the suspension of the lower pen part it can also BUr the formation of a bottleneck in the curved path be nut et that then an unwanted back slide in known catfish en de « Switching cams in the switching curve, which already runs continuously in the downward direction, are prevented, as in the case of the main patent against the annoying wobbling of the tip of the mine when rubbing it, especially if only one switching cam is provided! «t / the lead is slightly tilted in the writing position.

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Claims (5)

Claims 1) ballpoint pen with a push-button switch that can be held writing refill rotatable around its longitudinal axis during the switching process according to patent ··· (patent application L 58 980 3 / 7Ob), thereby characterized in that the in the front part of the mine (16) is radial arranged cams (22) as switching cams with a »in the front part of the pen shaft it arranged the refill (16) sleeve-like directly enclosing link part (4,5) cooperates · ■ 2) ballpoint pen according to claim 1, characterized in that the shift gate is subdivided in a manner known per se into an upper and a lower gate part (4 and 5), respectively which the lower link part (5) compared to the upper link part (4) by a smaller amount efat against a spring (23) is mounted so movably in the ballpoint pen shaft (1). that it can give way resiliently when the switch cam (22) of the mine is downstroke 3) ballpoint pen according to claims 1 and 2, characterized in that that the lower link part (5) can be partially rotated relative to the upper part (4) but is axially fixed in the ballpoint pen shaft (1) is mounted, with the spring (23) loading it • α Ο— 909816/0029 H61616 -X- a nose (24) or the like. of the link part (4) is supported, the the rotatability of the lower link part (5) is limited. 4) ball screams »according to claims 1 to 3» characterized » that the upper link part (4) in about half the lifting height one has a detached bast site ζ25) for the switch cam (22) » which by the spring-loaded lower link part (5) into the » this bast site is pressed in 5) ballpoint pen according to claims 1 to 4 * characterized by » that the curve limitation (26a »26b) of the lower gate part (5) has a shoulder (26) that controls the switching cam (22) when the mine (16) moves downwards when it reaches the height of the Resting point (25) is supported. 909816/0029