DE1786074A1 - Type lever drive device for power-driven typewriters or similar office machines - Google Patents

Description

Type lever drive device fttr power-driven Write or similar Bttroaaaohinan

They are type lever actuators for power-driven Typing or similar office aasohines known, where the type lever τοη a calibration in the constant Direction of rotation rotating shaft are moved by a drive rocker under the action of a drive spring, which triggered by the button levers and after coupling with the Power drive withdrawn by this in their tense booing position will.

In a known embodiment described in DHP 286 858. the type levers are also moved by a drive rail under the action of a spring, with the latter with its printing edge with every stroke and with the downshift to the starting position is a pure swivel swing execution. A preselection with a wide type lever can while the arhsitehubea of the first type lever does not take place, since the drive sohiono during the rearward movement the Sioss lever «push leather into the Auegangislage» iirde. £ ret when the drive rail is in its tensioned rest position When I returned, the nMohste type lever came through one Another key can be set in motion. This arrangement is therefore less suitable for high soaking speeds.

. BATH ORIGINAL

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In «in ·? corresponding construction, for example, geaäes the US Patent J 151 722, leads the drive bracket also made a reciprocating motion. When two keys are pressed one after the other, it falls within a very short time the KLtnehaerlinkle of the «wide sign below the preceding one Drive pulley. When the drive is returned * - swing arm, the Kltneheer pawl is lifted and falls then right one. ü «this idea of a preselected one The second line of business consists of several parts of the transmission Required · In addition, the lifting of the pawl is connected to the noise by the drive swing arm «

The object of the invention is to provide a simple type lever drive device to create large oil transmission parts, through which a reliable transmission of the drive movement from a drive rocker that can be moved back and forth to the juxtaposed, freely selectable (Jetriebeglieder is guaranteed.

A drive is used to solve the task of the invention device designed in such a way, that the by the drive spring acted upon and by the power drive via a loose coupling of the back-to-back drive rocker on the levers one swing * rotatably mounted, arranged so that it can be caught by stops and one adjustable on contact levers stored and old a stop rail firmly connected

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Axis formed let. Through this training it is achieved that two keys can be activated one after the other. While the corresponding! Type of the first gearbox Sum imprint is carried out, kai "" in "wide range in the Preparation point fall · When aa the end of the working stroke movement of the swing arm, the lever mechanism in the free The drive rocker, which is mounted on the swing arm, is activated pivoted in such a way that its pressure edge during the * Returns another circular path old of a smaller radius describes as a feed · 01 · old coupled to the drive rocker The print edge runs under during the sheet movement the Druoknaee of the gate selected drive lever hinduroh and is switched back to the working position at the end of the return. Through this Vaeenaltiing the drive rocker and dealt the stop rail aa the end of the bin and Rüekbewegungufig becomes a trouble-free transmission sequence and an overlapping one Hitting the type lever allows.

A further development of the invention consists in the fact that a cam disk which can be coupled to one of the drive shafts driven transmission lever via a control edge arranged in this old of the sw Drive rocker coupled without force. This so-called loose coupling is for trouble-free movement gates indispensable. Oa the friction at the coupling points Keep it small, the Mookensequenceeleaeat and stored on the transmission lever

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that interacts with the control edge and on the drive rocker mounted transmission element ale roles auegebilden "medal.

In addition, the device according to the invention brings one significant improvement «with which it is achieved that the stop rail of the drive vib with beaug on the Drive lever is set in the simplest way. This

is achieved in that the drive rocker on the Anechlaghehel a ring with set screws is firmly arranged, in which · the axis permanently connected to the stop rail is mounted so that it can be adjusted and locked.

According to a further preferred embodiment of the device according to the invention, the pivoting of the drive rocker in the end positions is facilitated and initiated in that the drive spring is arranged on the pivotable drive rocker and at a point on the machine that is fixed to the frame in such a way that the drive rocker is in the initial position in the Gsgenuhreeigersirm and The end of the drive movement is when the clock is applied with approximately the same torque. The power wheel enables the drive rocker to be properly held in the two swivel positions. However, this arrangement leads daftu _t that depending on the drive position when the Rückechalten Kraftweeheel a "u early switching the drive rocker eioh sees.

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According to another preferred further development of the orfia.-attngagettHssen device, this element which has an effect on la aanohea Aavea * dungsfillen is eliminated by the fact that "in Atm the oscillation serves as a guide and stop for the feeler lever, such as the" bain RUokeohalt " Schwing "bvtt, Spaanea the Aatriebafedtr that Aatriebawippe the üawohaltetellung is held as long la, bie Ar" of liuithebelo is captured on a solid Aaeehlag w & a fiaatung unlocked "Dadureh" ground the Vaaieherbelten * dl · an au early · ttaaehalten initiate _β aosge- «(ereserved«

Further aspects of the invention result in “I also Auaführuttgebeiepiel and the Beaehreibong.

flg. 1 side view of the drive device in the Starting position.

Fig. 2 Seifcene ^ aicht ά% ν drive device in the working direction shortly before the Uasohaltiges the drive rocker.

rig. 3 G * »ä (3ft 71g · Z naoh det 'switchover of the Aatrlebswippe.

Flg. h side view of the drive device «Mhread of the buok movement in dl« starting position in front of the hatch connection of the drive rocker in the working position.

Fig. 5 plan view of the drive device.

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With the arrangement geaHae 31g. 1 becomes a nook · 1 after. Release by pressing a button via non-illustrated structural members i »(! Egenuhrseigereian set in rotation that the stored energy of a drive spring 3 acting on a drive vault 2 acts on the lock 1 via force-base coupled members. The force iw drive spring 3 is thereby bound by the spring-bound and the drive rocker 2, which is rotatably mounted on an axis 10 of a rocker k and can be intercepted by stops, is transmitted to the control edge 6 of the pivoting lever * 8, which is rotatably mounted on an axis 7, via a transmission element 5 arranged on it, which is thereby transmitted via a Hoekensequenceeleaeat 9 arranged on this kraftsehlüssig hold on the squat. 1 Vu acts the Reibu & gseinflttsse in small Orensen su are the transmission element 3, and the rock rolls 9 Hoekenfolgeeleaent been formed ·

On the stop lever 11 in the drive rocker 2 shown in the figure, a ring 12 kit of adjusting screws 13 is arranged, in which the axis firmly connected to a stop rail 1 * is mounted so that it can be adjusted and locked Coupling of the stop rail 1 A with the drive levers (not shown) being set very precisely; the visual pivoting of the drive rocker 2 is on the one hand caused by the stop of the transmission element 5 'a on an edge 1'

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des ait the swing k feet verbundtntn lever 1? and on the other hand by stopping the arm of the soleplate lever 11 on the axle 19 dtr rocker arm 4ia bogrenst the sndlagea. On the 18 let kit tint »Coroplastsehlaueh 30 UbtrBogtiic often dft» KlickgerSuaeh btim Uasehalten * u aildern.

let dit Hook · 1 frtigtftbtn »so slides that · Kooktn Followtltntat 9 under effect d ·: ¹ Drivebftdtr 3 on dtr lticht mbgltittnd * n curve» dtr lfoek «1 and then fills is dtn ti · *» fta Auesohaitt. Hitrfeti bteohrtibt dit Druakkaat · dtr Aneehlageehitat 14-tiata Krtiebogtn Bit Kndiu · r “ (gtsHsa Fig. 2). Wtnn now dtr Sohwtnkbtbtl 8 alt dta Hookt & follows * oltaeat 9 dit titfet · Sttllt the Vooktakurr «trrtiont has vind sur plant gtkoaa« n iat «is dit fiehving · k through the effect ¹ dtr Aatritbeftdtr 3 still so wtit gts 20 of Etbtl 1? an ink tlaetisehtn Ancchlag sur Attlaxt kcnat. During the exercise, the Antritbewippe 2 is brought into contact with the child. «Av« ondtrn has a distance ^H a ^R , (see flg. 3). Ditstsüasohalttn erlei3htert is characterized in that the drive rocker _t 2 after Anlagt dts pivotal lever 8 ia the deepest segment "it Onea Drehaoaent is applied in Uhraeigersinn * Inswi> schta is the squat 1 ait dtr si? H ia a rotational direction

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rotating shaft has been coupled and set in rotation. With this »return, the pressure edge of the stop rail 14 describes a circular arc bit radius r ₂ (see Fig. 4).

Among other things, when the rocker 4 is switched back and the drive rocker 2 is switched back to the working position early, an axis 22 is arranged on the drive rocker 2 on which spring-loaded locking lever 23 is mounted directly next to the transmission element 5. A spring 24 arranged on the drive rocker 2 and aa latching lever 23 always acts on the latching lever 23 in such a way that it is on an arm 25 of the lever 1? sur plant koant. This arm Z $ is equilateral as a stop for a Ansäte 26 aa latch lever 23. This detent has the advantage daas k at RUoksohalten the rocker bsw. Tensioning the drive spring 3, the drive rocker 2 is held in the switch position until an era 27 of the reed lever 23 is caught at a fixed stop 28 and the detent is thereby unlocked. When the transmission link 5 BU begins to switch back the rocker arm h to the edge 16 of the lever 1? inter alia the path "a" is pressed, the approach 26 moves away on the course side, inter alia, the same length "a" from the system, dea era 25 (gaaa'ae Fig. * +). Of the

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Claims (1)

Claims 1. Type lever drive device for power-driven visual writing or similar business machines, the type lever being moved by a rotating light by a drive rocker under the action of a drive spring which is triggered by the lever and after coupling with the power drive is withdrawn by this into its tensioned boom position, thereby identified - * Rewarded that ^{acted upon by the drive fader 1} O) and supported by the power drive. The drive rocker (2), which can be reset via a loose coupling, is rotatably mounted on the levers (1?) Of a rocker arm (4), arranged so that it can be caught by anaoblists and from one Aasohlaghebeln (11) adjustable mounted and «it is formed with a stop rail (1 * 0 fixed Yerbuttdeaoa axis (15). 2. Drive device according to claim 1, gekennseichnet in that a detachable from an old drive shaft Hook · (D switchable transmission lever CS) in a conventional manner via a arranged on this control edge (6) with you to be pivoted _v fodergefesselten drives rocker (2) is forcefully coupled. 3. Drive device according to claims 1 and 2 »thereby marked that on the 109846/0541 Transmission lever (8) stored cam follower (9) and. the old of the Steuerkanta (6) suswuen affecting and transmission element mounted on the drive rocker (2) (5) formed ala roles in a manner known to aioh are. k. Drive device nmh, claim 1, characterized in that a ring (12) is fixedly arranged on the Aftaehleghibel (11) of the drive rocker (2), in $ m $ & * v & t of the stop rail (H ) firmly connected Achajs ». CtS) can be adjusted and locked. 5. Drive device according to claim 1, characterized in that an elastic stop (21) »it acts with a bend (20) of the bit of the rocker (k) firmly connected lever (17). such that this stop (21) limits the pivoting movement of the rocker (4). 6. Drive device according to claim 1, characterized in that the pivotable drive rocker (2) on the one hand by stopping the transmission member (5) on the Kaate (16) of the pivot lever (8) and on the other hand by stopping the Araes (10) on the axis (19) the rocker (k) is arranged to be interceptable. 109346/0541 BA © ORIGINAL Approach 26 coaat but quickly again cur Anlage ·, «o daea the advice is guaranteed. GerKuschreduierung car is the arm 27 bit a Coroplaetachlauoh 29 Overturned * After unlocking, the drive rocker is ■ charged with a DrebJioeent i * degenuhreeigerainn, eo daae a simple switching of the Anaohlagachiene 14 in the work and presentation is made possible. 109846/05 ^ 1 17860/4 ?. Drive device according to claim 1 - characterized in that an axis (2? -) is arranged on the drive rocker ξΖ) , on which a spring-loaded feeler lever (23) is mounted directly or indirectly next to the transmission element (5). 8. Drive device according to claim 1 and 7 »daduroh in that an arm (25) serving the rocker arm (4) and as a stop for the FUhrtmgakante! Sensing lever (23) _t such that when" RUckechalten the swing * (k) or "Tension the A & triebafeder (3), the drive rocker (2) is held in the Ussehaltstellung until an arm (2?) Of the lever (23) is caught on a fixed stop (28! And the mechanism is unlocked") 9 · Drive device according to claim 1 _f characterized in that deaf; the drive spring (3) at a pivotable e (2) and at a partially fixed a point (51) nnt S, ot _t aase uie Antriebßm.ppe (S.) in the Auegaugalage Ie GsgeauhrKsteigern and is at the end of the Rg in TThraeigereinn with oinem etna same beaufe @ kiagt is that the pivoting of the (P.) guaranteed in the end positions. 08846 / OS * 1 BWOBQINAL