DE1910818A1 - Arrangement for generating reduced rotational movements - Google Patents

Description

Arrangement for generating reduced rotary movements

The invention relates to a mechanical arrangement for generating of mutually defined reduced rotary movements of multi-stage, consecutively acting display or switching elements, especially for clocks and switchgear.

Such arrangements have the purpose of converting a movement acting on the drive side into a sequence that is defined and reduced Rotary movements, free sequence, or the respective status can be read visually from the outside via pointers or number wheels, or can be queried electrically via contacts, for example. Electrical or mechanical contact arrangements are mostly used for this simpler purpose of triggering a switching process when a previously specified level is reached.

It is known to use gear systems for the purpose of the reduction, which consist of sequentially arranged spur gear or worm gear combinations are also built up (clockworks). It is also known among the occasionally very many elements of such a transmission system those whose movement has a direct meaning for the display with To equip connecting elements (sec., Min. And std.wheels), to bring them out for the purpose of display and with display elements (e.g. pointers). In addition, systems are also known in which the transmission elements for the purpose of the display are provided with numbers on their circumference (mech. counting xverke), however, these work preferably discontinuously in order to enable a clear reading and are generally for one episode with identical reduction ratios of neighboring display elements (e.g. 1:10).

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In order to achieve a uniform direction of rotation of the display, the use of spur gears requires an additional number of intermediate gears in addition to the wheels that are essential for the display.

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. in addition to the number of elements © and their arrangement »Furthermore is used to enable adjustments to be made from the outside within such a gear (e.g. for adjustment ■■ the minute display) further additional effort is necessary, the also the number of elements and the structure of the overall system meets. (See book Fr. Aßmus! "Technical drives", Springer-Verlag 1958 pp 172-191). It is known for time switches Provide a number of preselectable contacts on the circumference However, these allow only a limited resolution and thus only a limited number of advance times.

The invention is based on the object of an arrangement find the required number of such systems on one Reduced minimum, furthermore to design the transmission system in such a way that that possible pitch inaccuracies in elements cause only minimal errors, the manufacturing process continues most of the individual parts of the systems and also to significantly reduce assembly costs and possibly even to enable fully automatic assembly. In addition, E.g. when used as a timer, switching operations to be triggered are preselected to the minute - or even to the second can be without significantly increasing the mechanical effort; After all, when used as a clockwork, a Jump seconds display can be achieved, which can also be adjusted in the seconds display when executed as a synchronous clock and, for example, synchronized with the television clock can be. All of these requirements should be met without losing the usual appearance of the central To go off pointer arrangement. ι

This object is achieved according to the invention characterized Geloë * _s Dall to achieve a uniform sense of rotation of successive reduction stages in modification of the known training * guide farmen of epicyclic gears internally toothed baths on ^f fixed sewing externally toothed elements roll, wob @ ii @ r required for the rolling process eccentric Drive si «

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ner stage is effected directly by eccentric shaping of the rotating element of the previous stage. As a result of the fact that such modified revolving gear stages are used, the same direction of rotation of the following stage is achieved immediately, and the number of moving elements per sub-stage can be reduced to a minimum (to one). Furthermore, large reduction ratios can be achieved in one step (e.g. 1:60 for a watch) because the difference in the number of teeth is essential for the reduction (not the quotient, but) toothing λ sahnung at a large pitch circle, even vorsuaehen ausβerhalb of Anzeigtfeldes and thus reduces tooth size problems and the Auewirkung From form inaccuracies in the comparison.

Another feature of the invention is that the rotating elements belonging to the individual Üntereotiungsstufe on the one hand by suitable drive design as gear elements and on the other hand by suitable display markings or circuit preparation at the same time as j Anaeige- biw. Serve switching elements "The central arrange- 'voltage of all rotating elements which results from the use of such epicyclic gear stages can be the rotating elements except gears" also display functions assign and moreover, switching functions in cooperation \ .with likewise arranged centrally. E.g. on the housing circumference evenly distributed counter elements. As a result, all i additional elements are superfluous, which are usually required as a display design, as a display element and, if necessary, as an additional j control wheel. '

Another feature of the invention is that the nut-toothed Elements for several successively acting reduction stages are combined in one and the same component and this Component can also be the housing. This causes some or even all of the fixed elements to fall as. Items continued that in the simplest case in each lowering level at least each

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would have to be available once separately.

Further features of the invention are that to transfer of an eccentric threatening element at the same time The centrir.ch rotating element to be driven within the same reduction stage a "transmission element between both rotating ι lementen acts, which in radial Direction is elastic, on the other hand rigid in the tangential direction; that this element for adjusting the relative position of the two elements is designed as a releasable coupling; that this Clement Bentandteil is one of those elements which connects it. This ensures that the radial distance between the elements is created by the eccentric movement of the one rotating element is caused, is elastically balanced and at the same time a transmission the rotary movement takes place; that by disengaging the Ib'cbaren Coupling a relative adjustment of both elements. Made v / can earth; and that still no additional component required v.'ird.

Further features of the invention are that the rotating elements, which act simultaneously as gear and display elements, are made of transparent material and are provided with suitable display marks from axinn ^ n twYp.Ar.hnren ; that the neck is also made of transparent material with the scale markings attached to it; that the display and okalenmarkierun- ^ en appear luminous due to a suitable surface design with lateral light irradiation as a result of the light guide effect. As a result, it is sufficient that the transmission elements, although they are on top of one another, can function as display elements at the same time; that the whole system, with the exception of the scales and pointers, is crystal clear and transparent} that in the dark, when irradiated from below, only the scale and the pointers shine.

• £ in_-yie-it £ TeZ; -] & jrlzmal-ßeT_ßxfinavinfi ± 8t that to use the rotating elements as switching elements, the externally toothed elements on the housing or another circle swept by the rotating elements with externally attackable, re. ~ enoinar. is equipped with the isolated contacts, which are connected to the electrically conductive counter

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clock on the rotating element to close an electrical r -: \ S: circle. This is achieved-that the Vor.vi-iL '· rf'olf the switching process to be triggered in several levels ^ ¹ "v Airflösung; so ill" arbitrarily increased and leads k.lJ "in egg clock by equipment and the second wheel with the _o-.rti s devices to a precise second code deb Switc operation is completed.

Another feature of the invention is that when used rotating element serving as a clock to display seconds stepped teeth through a periodic stroke movement is driven tangentially acting, whereby a leap seconds movement especially with 60 teeth on the drive circuit is performed. This allows depending on the number of stepped teeth and the corresponding design of the drive stroke and frequency achieve a continuously appearing or a leap second movement.

Another feature of the invention is that for adjusting and adjusting the seconds display, a suitable externally actuated adjusting element acts on the rotating element serving for the seconds display and rotates it as desired regardless of its drive. It is thereby achieved that when using a drive (Synehronuhr) fed by the mains, the second hand also points to a normal clock during operation. Z ₀ B. can be set to the television clock.

An embodiment of the ^ _r fi _{n (} i _un g ± _s -i ± _n ü _en illustrations and is described in more detail below. Here, the use of the arrangement as a clock gear with three display elements is shown; sec.-, min.- and hour display The entire gear unit, including the housing, is made up of six individual parts.

The structure of the gearbox is shown in Figures, Fig.1 and Fig.2 / exploded. Part 1 is the front part of the housing, it contains a fixed shaft, two external toothings with 11 or 59 teeth in different planes, the scale marking and an edge to accommodate part 6. Part 2 is the hourly part, it contains a centrally arranged, protruding Hing with 12 internal teeth, one centric

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Hole and the hour hand aarkieriyig. Part 3 ict the minute part, it contains a protruding eccentric, a rearward / directed adjusting element, a central bore through the whole part i'x'h rende, the I-anutenopfermarkierunr; and an elastic transmission element on the circumference. Part 4 is a smooth outer ring with 60 teeth on the inside, which are limited to the rear by an inwardly protruding edge is provided with step-shaped teeth, the inner circumference of which, on the other hand, is eccentrically arranged and smooth. Part 6 is the rear part of the housing with a passage opening and an edge which fits into part 1. How the parts interlock is shown in FIG shows the gearbox assembled. The eccentricities are shown here deliberately exaggerated, they are only 1 / 1.2o (at 1: 6o) or 1/24 (at 1:12) of the pitch circle diameter Scale diameter of approx. 12 cm an eccentricity of only approx. 1 mm for both eccentrics; proportionally less for smaller versions.

The mode of operation of the transmission is explained in Fig.1 and Fig.2. The drive is one stroke movement per second, tangential acting on part 5 assumed (arrow in Fig. 2). Dadurcli Part 5 rotates by 1 / 6o of a turn in leaps and bounds every second (Leap second). At the same time, the eccentric of part 5, which glides over part 4, causes it to be on the external toothing unrolls on part 1 and that with every full turn of part 5 by only 1 / 6o turn. The elastic transmission element on part 3, slightly guided to the left and right, engages in the toothing of part 4 and transmits the rotary movement from part 4 to part 3. As a result, part 3 rotates centrally at the speed of the minute hand. The eccentric on part 3, the sliding protrudes into the bore of part 2, causes the internal toothing of part 2 to roll on the external toothing on part 1j as a result, part 2 rotates every full revolution of ^ eil 3

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1/12 TJm rotation, i.e. with hour hand speed. Part 2 is the only one of the three display elements in which a small eccentric movement is superimposed on the rotary movement; This is not at all disturbing because of its very slow speed (hour hand). The minute display is adjusted from the outside via the adjusting element on part 3, the elastic transmission element engages on any tooth of part 4 60 teeth, an adjustment can only be made automatically in whole minutes. As a result, the minute hand always points exactly to a backward number when the second hand is just about 12. This single-digit assignment of the two hands is not possible in watches with continuous sensibility.

The reduction gears can in principle all also be arranged outside the pointer field, as is the case here with the teeth 59 / ^ 0. For the reduction! '. Inute / Sturide, it would be better to choose 55/6 teeth instead of 11/12. The parts are made of transparent material, for example by injection molding. The annexes to part 1 as well as the zei ^ errr.rrr. Arcs are provided by suitable (the surface design is luminous when light falls from the side, on the other hand al or opaque. With a suitable installation hall; the scale covers all toothing as well as the countries of the disks. The nechanicmus kr 11 / 12 Unterr.etivon ^ may also be covered by a circular disc as u _c a. to the illustrations 4 and FIG. S. Abdeclrscheibe this may be part of the central shaft in part 1 and this give a stable position, if you prefer to insert the shaft as a separate part in the possibly very thin part 1. The total thickness of such a gearbox can now be 6-1 o. Part 4 can be made of a smoothly sliding, uath opaque material for reasons of friction reduction as it is completely behind the already opaque display scale by mirror-image shaping of parts 3 and vice versa: let it run. This means that the adjustment

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element to hawks 3 SSER at the front watch, it is hanging by flat against the back and can 2.E on a wall "

How a clock with such a clock mechanism can look like, see Fig. A. i; the drive can z _o ll. be done by a synchronous motor, the speed of which is reduced from, for example, 50 rev / sec to 1 rev / sec via a further epicyclic gear stage in a flat design, both of which are incorporated into the base frame mii /. Fig. 5 and .Fig.Γ '/ own in principle how the transfer from the foot Bf-: π part can take place on the clock gear and also indicate the simplicity of the addition of the gear and drive system. .., hrough a simple, manually operated Vm "cbutmeehimismus, z L · in kind from the outside acting, r ^a.! ^ v / spring thrust rod system which when actuated 'uf the χ ei] ^l; rotating acts, the Position de ^r : Secondary: r ^ i / r / rs unal. Frequently from the running end. Drive can be changed. Even here there is only one stui'env / one 7?: Tellffiüi '] ity in whole. Okiuiden, da dor ^ mfaij ^ from part 5 ror ^r le 6o y ^; '<.re hat. ^ a; -; bodr-utc-t, that if the ^ r T-'hr is set to Θάΐΐ «" - .o-raluhr nil also leap second die]]: asenlnr: e r.wi: -o; .ei, den Jekuu-ier: seigern both clocks, from ", sie eirirr-rl ric-: i · - is adjusted, ηυοίι in each other., toi j.an r orhal tf ". ·. blfd.bt.

In addition air,, 3ch-'ilt ^>: rv / irkt the here darren 1 c-1 J te Auf - '.' Reun-T, if ran dj e iv : oil 1 bef in iliehen "ahne als ^ r.- ^ j-.iiixandf? r isoli ··; "''^; -e hor.taki <=? nusbilaet, dio. . vari ^ v / eioe outward ■ ".-" enan a itr ■ -:..): ^v r '? ANRT i3 joined ^~~': vei: k '.-' nnf.nj si "eah? ^{> fj} r small i.it <"■ -. ■: u ^r ;;, r: -f η od '~ / iii' .- r ei ^{T. [} ; ". - ■ '- ■. · R";"'- ¹ ^ ·· ■■ Tr tf 1 I'... '/' ¹ * ohieifkontak- The oir". "- * r _-pr,: t j el bar t n. \ ογ 7 eil e 2 u? j '<4 m ^ r ·; ·: et'f-faJlr lei. ⁴ <r i sein'urri ■ "r ^{;;;:> <j} rhi τ; from mi toi nand'- r

ier s: ile .-- ■ ::?> ■ Ί -, te? / - / or anre :: ch, j occ'erf-n hor + ^ kte an .oil 1 erroi-ht h'- · !: -, --chili. · "eich ■: -? ■ -.:t>*ι■:.·;'>rein and dr;: c" ----. lt-ν, - 'ϊ'.ηηίτ we ^j > K ~ -i '::: rn: ■: ■■ on. * gC'i ^i; ^ ^: ir "l,. L'r ^ ch ^ri ino Aajsotättüng" α ·.; ο '.: cies IJsi ■;. :: · ::. * ei 1 "-rit ent ^c ; ir ^.' yr, or-} .or) tar. ⁺ er: can

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thanks to the extended series connection, it is accurate to the second Achieve hold execution. The contacts for all previous levels and their feed lines can also be found in Part 1 to be worked into.

The low production costs result on the one hand from the small number of parts and from the fact that the individual parts are relatively large and finally because the parts made of plastic can be manufactured ready for assembly in one operation are.

The east low mounting ^v resulting diirch the simple arrangement; the four individual elements practically only need to be stacked in the correct order on the common head.

The requirements on the precision of the individual parts are likewise% if minimal, since the main teeth are arranged on the outer circumference of the already relatively large parts.

Such a clock can, if it is with a mains powered drive system are, despite their simplicity, considered to be a sophisticated synchronous clock, as both minute and The second hand can also be set on any normal clock, as the exact one is always the same despite the minute hand being adjusted The relation between the minute and second hand is retained and, since it is also executed with a jump second Despite the adjustment of the second hand, the phase position of the jump movement always remains the same. ,

Many variants can be derived from this basic concept, both in terms of shape and in relation to the combination with the drive system} e.g. with electromagnetically or inductively excited vibratory drives, which in a further embodiment of the idea can even be worked or cast into the gearbox housing. Finally, for advertising purposes, for example, it is possible to think of variants in which the clock mechanism is free while the drive is remote-controlled.

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Claims (1)

_{η ()} 1910313 Patent claims: / 1 ) Kechaninche arrangement for the generation of mutually defined reduced rotary movements of multi-stage successively acting ion display or switching elements, especially for clocks and clocks, characterized in that to produce a uniform Direction of rotation of successive reduction stages in downward direction the known embodiments of Uralaufge exaggerated internally toothed wheels on fixed air Unroll elements, the eccentric drive of a stage required for the unwinding process by eccentric Shaping of the rotating element of the previous stage is effected immediately. 2. Arrangement for generating reduced rotary movements according to claim 1, characterized in that the individual reduction stages belonging, rotating elements on the one hand by suitable drive design as gear elements and on the other hand by suitable display markings or by circuit preparation at the same time as Display or switching elements are used. 3 arrangement for generating reduced rotary movements according to claims 1 and 2, characterized in that the rotating elements, which are used simultaneously as gear and display elements, for reading their position are equipped with pointers which, starting from the toothing, radially outwards in the plane of movement or directed inwards. 4. Arrangement for generating reduced rotary movements according to claim 1, characterized in that the externally toothed elements for several successive reduction stages in one and the same component are combined and this component also the Housing can be. 0 098 37/1010 BAD ORfGINAU 1910313 . > · .Ϊ; οΉ? "' 7XiT i ir :: ου rung vor unter': · ;: i cn ijrehbev / e / run ^ en .I ·; ·; '- ^ rr, ρ; -. · 1, characterized gerr-nnzeic-met that the _u'bertra::; un £; der Lrehbev.-e ^ un .'- vo ;; eiiM.in. r.roiitricjh • Irehui .-. icn h head · i rr \ £ a n; i eichr '.- h ^ ell anrutreilf: es, z'-ntrisch dretK'r-les il τΛ-.ov.t withinunlb der / Reichen h ' iorsetzmursstvife eii; i'bertri-.rr.; :: ~ seloir.e: yt between the two rotating elements. *: v: irkt, wolcr-es in raiialcr Hichi \ m <; rl - ". i'tioch, da.fje.rjen in tangenti'jler ivichtnng is not rigid. 6. Anordtiu- - ς rur hrse ^ ung of -untersetzten jJrehbov; c -: -.- a: ii; eri, according to claim 1 \ uv \ 5 ri'hlr.rch /;o↔:o:;'.neichi;et. _t '": ai3 das rur Lborlragiirie:' τγ ~ ^ reh \: e ':: e- K \ mf" and r / a: r. Aur> - "1 c? I by ijXnentrizi + MtG-Abntandcr-Un-i ^ runTeri ^ zv.'ischen zv: oi., .. If-r.enien lioneril '. ¹ '.'ber ^J τ -'. R ^ γγ, οΙ ο ::.?. ΓΛ: r; :: i lv / e}: - ^ ke der Vor. "tellunr der rr]? - tiver. i ane» cj: - r they ran to one another .mf> l -'- ^ barc i, '.; T ^- r "i; n ⁽ ; aur.- rr. · '. · iidot is, the eggs over or one of .'1UC ". en hoüeiib-avec. ■ -.Ti.tel lo] er. er. t 1 <"> - o: j lii: t ur . ^: an Ic-- 1 i eb ig an u c -. 'cr you]] c ν · \ e 1 * ■ r r- i :, rart < 1 - 7. Anormuh; . .ir iirzexi.Tva.g before. iii ^rr: 't / n it ..rol-.bo ^- ..e u :.?. ^: · .R. after L ". spoke 1, 5 im. ' 6, ment un i rs ι icl.roj ''"al :: icrL-iro Γ · :; λ ;; π: v; irkenif- ..., / - frt through. \ f> one note i or: ..- ei; :::?. e ~ t-> iv.iteil ei ^ es ierjen ⁴ ·: or.;, lr ·; s. ^ - te selb t i. ^, Hc trei: ri un 3 ': r. "r '.- · i · .-! > :: 1 By J): ^io:;. ^: 3v '.- r- bundpv ν ·?: ·· ~ · '* ■!:, br ν. Ή ", τοη rel'siivj ·: ■"<■ -: ·. einanic ": it ^: :: · ■:. f Ιϊϊ3- · ⁵ '.'r-'; .. i + ν "Γ'Ι ^ η 'oil. thereby ~ · ^! : <~ r.- ' ret' · ::. ·. ", r".? rur; ■ r'.r ^: >""!■; c:. · ■ :; - their tion 3j '. ~ ■ t. ^ i'"-l" O- : · ο '.--' ί ^ ax3 /-.r. "i τ ··" 1- ··· :-(: "'.<-> ⁵ Ie r den Γ'τγ."': "ur ir ;:" · i or ti r: ^r r! r.- o ^ ^IRT; - ".?" T. "fc" tel ετρο ϊ ι tf, "■ - ν * '1.' TVvTi *"-'or."V ^η r hen vir. ^; . 0098 37/1080 ORIGINAL BATHROOM. 1910313 9. Arrangement for generating reduced rotary movements according to claim 1, '2:. And. 4 ^{,; ;} characterized in that the housing with the attached thereto ijkalenmarkerüngen made of transparent material is. to. Arrangement for generating reduced rotary movements according to claim 1, 2, 4 »8 and 9, characterized in that the scales and display markings in the transparent material of the housing or display elements Luminous when exposed to light from the side due to a suitable surface design due to the light guide effect appear. 11. Arrangement for generating reduced rotary movements according to claim 1 and 2, characterized in that for the use of the rotating elements as switching elements, the externally toothed ones located on the housing Elements or another circle marked by the rotating elements with externally accessible, mutually insulated electrical contacts are equipped, which upon contact with the electrically conductive mating contact complete an electrical circuit on the rotating element. 12. Arrangement for shortening reduced rotary movements according to claim 1 and 2, characterized in that, when used as a clock, the rotating element used to display the seconds has a stepped design Teeth through a periodic stroke movement - tangential Actively driven v / ird, which especially with 60 teeth a jump second movement is achieved. 13. Arrangement for generating reduced rotary movements according to Ar.spruchi, 2, 12 and 13, characterized in that, to adjust the sparkling wine dispenser, a visually-actuated Vorstoll element on the display element v.'ir> i -in rotates this independently of the drive. 009837/1080 BADORKSINAL Blank page