NO127423B - - Google Patents

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Publication number
NO127423B
NO127423B NO01545/70A NO154570A NO127423B NO 127423 B NO127423 B NO 127423B NO 01545/70 A NO01545/70 A NO 01545/70A NO 154570 A NO154570 A NO 154570A NO 127423 B NO127423 B NO 127423B
Authority
NO
Norway
Prior art keywords
star wheel
tooth
wheel
branch
drive pawl
Prior art date
Application number
NO01545/70A
Other languages
Norwegian (no)
Inventor
Rolf Ake Sahlgren
Bo Ingvar Wiljanen
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of NO127423B publication Critical patent/NO127423B/no

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H27/00Step-by-step mechanisms without freewheel members, e.g. Geneva drives
    • F16H27/02Step-by-step mechanisms without freewheel members, e.g. Geneva drives with at least one reciprocating or oscillating transmission member
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06MCOUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00Design features of general application
    • G06M1/04Design features of general application for driving the stage of lowest order
    • G06M1/041Design features of general application for driving the stage of lowest order for drum-type indicating means
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06MCOUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00Design features of general application
    • G06M1/04Design features of general application for driving the stage of lowest order
    • G06M1/041Design features of general application for driving the stage of lowest order for drum-type indicating means
    • G06M1/044Design features of general application for driving the stage of lowest order for drum-type indicating means with escapements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/15Intermittent grip type mechanical movement
    • Y10T74/1526Oscillation or reciprocation to intermittent unidirectional motion
    • Y10T74/1553Lever actuator
    • Y10T74/1555Rotary driven element
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/21Elements
    • Y10T74/2133Pawls and ratchets
    • Y10T74/2136Pivoted pawls
    • Y10T74/214Multiple tooth

Description

Trinnfremflytningsmekanisme. Step advancement mechanism.

Oppfinnelsen vedrorer en trinnfremflytningsmekanisme for et med stjernehjul og drivpal forsynt tellevekk ved hvilket en svingende bevegelse ved drivpalen omformes til en enkeltrettet vridningsbevegelse hos stjernehjulet hvorved drivpalen er tangformet med en gren på diametralt motsatte sider av stjernehjulet, og dessuten grenene er forsynt med hvert sitt utspring som ved drivpalens svingningsbevegelse vekselvis gjor inngrep med stjernehjulet på den med hensyn på vridningsretningen motsatte side av hver sin tann. The invention relates to a step advance mechanism for a counting wheel equipped with a star wheel and drive pin, whereby a swinging movement at the drive pin is transformed into a unidirectional twisting movement of the star wheel, whereby the drive pin is pincer-shaped with a branch on diametrically opposite sides of the star wheel, and furthermore the branches are each provided with projections which during the oscillating movement of the drive pawl, the star wheel alternately engages the opposite side of each tooth with respect to the direction of rotation.

Ved trinnfremflytningsmekanismer av nevnte type er det vesentlig at stillingen for stjernehjulet er vel definert ved avslutning av trinnfremflytningsbevegelsen. Ved utformning av drivpalen på konvensjonell måte kan det forekomme at st jernehjulet fjærer tilbake til sin utgangsposisjon eller at drivpalen kiler seg fast i stjernehjulet og forhindrer klanderfri trinnfremflytning ved neste påvirkning. Problemet foreligger særlig ved slike telleverk der man av plasshensyn har relativt kort svingningsarm for drivpalen. With step advance mechanisms of the aforementioned type, it is essential that the position of the star wheel is well defined at the end of the step advance movement. When designing the drive shaft in a conventional manner, it may happen that the star wheel springs back to its initial position or that the drive shaft wedges itself in the star wheel and prevents faultless step advancement at the next impact. The problem is particularly present in such counters where, for reasons of space, the swing arm for the drive shaft is relatively short.

I en tidligere kjent trinnfremflytningsmekanisme ifolge eksem-pelvis British Patent No. 516.299 består trinnhaken av to armer, hvor hver arm har en spissformet tann for inngrep i en tann på trinnhjulet. Hver arm hos trinnhaken oppebærer også en på én fast tapp bevegelig holder for anlegg mot en nærliggende tann på trinnhjulet i og for losning av dette. Ved trinnfremflytning av trinnhjulet vil den ene armen bevege seg oppad og den andre nedad, hvorved forst holderen på den ene armen frigjores fra hjulet og efter en viss tid holderen ,fra;den andre armen frigjores fra:hjulet...Trinnf remf lytni ngen av trinnhjulet hos denne kjente mekanisme skjer således under et for-holdsvis omstendelig,forlop, hvorfor det ikke kan oppnås hoy hurtighet hos trinnfremflytningen.. In a previously known step advancement mechanism according to, for example, British Patent No. 516.299 the step jaw consists of two arms, where each arm has a pointed tooth for engaging a tooth on the step wheel. Each arm of the step hook also supports a movable holder on one fixed pin for engagement against a nearby tooth on the step wheel in and for loosening this. When moving the step wheel forward, one arm will move upwards and the other downwards, whereby first the holder on one arm is released from the wheel and after a certain time the holder, from; the other arm is released from: the wheel... The step wheel of this known mechanism thus takes place during a relatively time-consuming process, which is why high speed cannot be achieved with the step advance.

Et formål med foreliggende oppfinnelse er å tilveiebringe en enkel trinnfremflytningsmekanisme med hoyere hurtighet enn hos kjente mekanismer. One purpose of the present invention is to provide a simple step advancement mechanism with higher speed than in known mechanisms.

Et annet formål med oppfinnelsen er å eliminere nevnte ulemper og tilveiebringe en trinnfremflytningsmekanisme ved hvilken, fastkiling mellom drivpalen og stjernehjulet forhindres samtidig som stjernehjulets stilling efter trinnfremflytningens avslutning blir vel definert. Another object of the invention is to eliminate the aforementioned disadvantages and to provide a stage advancement mechanism by which wedging between the drive shaft and the star wheel is prevented while the position of the star wheel after the stage advancement is completed is well defined.

Dette oppnås ifolge oppfinnelsen ved en mekanisme av den innled-ningsvis nevnte art hvis karakteristiske trekk fremgår av efter-folgende krav. According to the invention, this is achieved by a mechanism of the kind mentioned at the outset, the characteristic features of which appear from the following claims.

Oppfinnelsen skal nærmere beskrives nedenfor ved hjelp av et ut-forelseseksempel under henvisning til tegningen på hvilken fig. 1-4 skjematisk viser en trinnfremflytningsmekanisme ifolge oppfinnelsen for.et telleverk i fire forskjellige tilstander under funksjonen. The invention will be described in more detail below by means of an embodiment with reference to the drawing in which fig. 1-4 schematically shows a step advancement mechanism according to the invention for a counter in four different states during operation.

I fig. 1 vises et sideriss av et telleverk ifolge oppfinnelsen, hvorved slike deler som ikke har noen direkte sammenheng med oppfinnelsen, kun er skjematisk antydet. Med l betegnes en mag-netspole som ved sin magnetisering tiltrekker et anker 2. Dette er forsynt med et utspring 3. som griper inn i. den ene ende av en hevarmformet drivpal .4. Denne er svingbar omkring en vridningsaksel 5. Denne aksel er ifolge eksempelet felles for drivpalen og telleverkets drev, men kan bestå av en vilkårlig aksel-tapp. Drivpalens andre ende er tangformet, hvorved tangens to grener 7 og 8 er beliggende på diametralt motsatte sider av et stjernehjul 9 som ifolge eksempelet er anordnet på samme aksel 10 som telleverkets sifferhjul 11. Drivpalen behover ikke nød-vendigvis å være åpen ved sin.ende., men kan bestå av en sluttet ringformet konstruksjonsdel, slik som antydet med stiplede lin _ jer, i det tilfelle dette motiveres av konstruksjonshensyn eller av materialets egenskaper. Med 12. betegnes en fjær som er fast-spent mellom magnetens hpvedlegeme 13 <q>g drivpalen 4. Grenene In fig. 1 shows a side view of a counter according to the invention, whereby such parts which have no direct connection with the invention are only schematically indicated. L denotes a magnetic net coil which, through its magnetization, attracts an armature 2. This is provided with a spring 3. which engages in. one end of a lever-shaped drive pole .4. This is pivotable around a twisting shaft 5. According to the example, this shaft is common to the drive shaft and the counter drive, but can consist of any shaft pin. The drive pin's other end is pincer-shaped, whereby the pin's two branches 7 and 8 are located on diametrically opposite sides of a star wheel 9 which, according to the example, is arranged on the same shaft 10 as the counter's digit wheel 11. The drive pin does not necessarily need to be open at its end ., but can consist of a closed ring-shaped construction part, as indicated by dashed lines, in the event that this is motivated by construction considerations or by the properties of the material. 12. denotes a spring which is fixedly tensioned between the magnet's hp appendage 13 <q> and the drive pole 4. The branches

hos drivpalen er hver forsynt med to utspring 14, 15, resp. 16, 17, hvilke er beregnet på å komme i inngrep med stjernehjulets tenner for å vri dette. Fig. 1 viser anordningen i hvilestilling. Når magneten reagerer, vris drivpalen i oppadretning i forhold til den i fig. 1 viste s-feilli-ng ved at ankeret 2 fores i nedadretning og med sitt utspring 3 trykker drivpalens arm nedad. Fig. 2 viser den posisjon der drivpalen under sin bevegelse oppad med utspringet 16 er kommet i -beroring med en tann 20 på stjernehjulet. Under den fortsatte svingningen av drivpalen vris stjernehjulet i retning med urviseren inntil den andre tannen 28, regnet i vridningsretning, på stjernehjulet, kommer i beroring med utspringet 17 på drivpalens gren 8. Denne stilling er antydet i fig. 3. stjernehjulet holdes tilbake i denne stilling så lenge magneten tiltrekker. Utspringenes 16 og 17 periferiske avstand i forhold til hvernadre" er valgt på slik måte at avstanden er storre enn en tanndeling hos stijer-ne_hjulet. for å muliggjore at mens utspringet 16 ligger an mot at the drive shaft, each is provided with two protrusions 14, 15, resp. 16, 17, which are designed to engage with the teeth of the star wheel to turn it. Fig. 1 shows the device in rest position. When the magnet reacts, the drive pole turns in an upward direction in relation to the one in fig. 1 showed s-failure in that the anchor 2 is fed in a downward direction and with its protrusion 3 presses the arm of the drive pawl downwards. Fig. 2 shows the position where the drive shaft, during its upward movement with the projection 16, has come into contact with a tooth 20 on the star wheel. During the continued oscillation of the drive shaft, the star wheel turns in a clockwise direction until the second tooth 28, counted in the direction of rotation, on the star wheel, comes into contact with the projection 17 on the drive shaft branch 8. This position is indicated in fig. 3. The star wheel is held back in this position as long as the magnet attracts. The circumferential distance of the protrusions 16 and 17 in relation to each other" is chosen in such a way that the distance is greater than a tooth pitch of the guide wheel. to enable that while the protrusion 16 rests against

den i yridningsretningen vendte flate på tannen 28. På denne måte oppnås at når utspringet 17 er kommet til anlegg, stanser stjernehjulet i en vel definert stilling. Samtidig blir resul- the surface of the tooth 28 facing in the direction of running. In this way, it is achieved that when the projection 17 has come into contact, the star wheel stops in a well-defined position. At the same time, the result

tanten av de krefter som opptrer i resp. anleggspunkter på stjer- the tant of the forces acting in resp. installation points on star-

nehjulet, rettet på slik måte at den forloper omtrent gjennom stjernehjulets vridningsaH<s>e<l> 10. På denne måte forhindrer man såvel usikkerhet i stjernehjulets stilling ved slutten av vridningsbevegelsen som fastkiling mellom drivpalen og stjerne- the idler wheel, aligned in such a way that it runs approximately through the rotation of the star wheel aH<s>e<l> 10. In this way, uncertainty in the position of the star wheel at the end of the turning movement is prevented as well as wedging between the drive shaft and the star

hjulet. Når magnetens tiltrekning opphorer, fores drivpalen av fjærens 12 kraft tilbake i retning mot urviseren. Forst kommer da utspringet 15 i beroring med tannen 25, hvorved stjer - the wheel. When the magnet's attraction ceases, the force of the spring 12 moves the drive pole back in a clockwise direction. First, the protrusion 15 comes into contact with the tooth 25, whereby star -

nehjulet 9 vris i retning med urviseren. Denne tilstand vises i fig. 4. Vridningen kan imidlettid kun fortsette så lenge ut- the needle wheel 9 is turned in a clockwise direction. This condition is shown in fig. 4. In the meantime, the twisting can only continue as long as

springet 14 ikke er kommet i beroring med tannen 22. På the gap 14 has not come into contact with the tooth 22. On

samme måte som ved grenen 8 er også her avstanden og den gjen- in the same way as with branch 8, here too the distance and the re-

sidige stilling mellom utspringene valgt på slik måte at kref- lateral position between the protrusions chosen in such a way that

tene ved utspringene 14 og 15 anleggssteder på stjernehjulet frembringer en resulterende kraft som er rettet omtrent gjennom stjernehjulets vridningsaksel 10. Sistnevnte tilsaand fremgår av fig. 1. Med andre ord er trinnmekanismen vendt tilbake til hvilestilling. Det er ikke nodvendig at begge grener er forsynt med stoppeutspring 14 respektive 17. Det kan være tilstrekke- the teeth at the protrusions 14 and 15 contact points on the star wheel produce a resultant force which is directed approximately through the star wheel's twisting axis 10. The latter aspect can be seen from fig. 1. In other words, the step mechanism is returned to its rest position. It is not necessary that both branches are provided with stop outlets 14 and 17 respectively. It may be sufficient

lig at kun på den ene grenen anvendes et stopputspring, nemlig på den som gjor inngrep med stjernehjulet under innvirkning av magneten. Fjæren for fastkiling eller ufrivillig anordning av stjernehjulets stilling er nemlig meget storre ved påvirk- similar to the fact that a stop projection is used only on one branch, namely on the one that engages with the star wheel under the influence of the magnet. The spring for wedging or involuntary adjustment of the position of the star wheel is much larger when

ning av magneten enn når kun fjærens 12 betydelig mindre tilbake- ning of the magnet than when only the spring's 12 considerably less return-

foringskraft virker på-drivpalen. lining force acts on the drive pile.

Claims (1)

Trinnfremflytningsmekanisme for et med stjernehjul (9) ogStep advance mechanism for a with star wheel (9) and drivpal (4) forsynt telleverk ved hvilket en svingende bevegelse ved drivpalen (4) omformes til en enkeltrettet vridningsbevegelse hos stjernehjulet (9), idet drivpalen (4) er tangformet med en gren (7,8) på diametralt motsatte sider av stjernehjulet (9), og dessuten er grenene (7,8) forsynt med hvert sitt utspring (15,16)drive pawl (4) equipped with a counting mechanism whereby a swinging movement at the drive pawl (4) is transformed into a unidirectional twisting movement at the star wheel (9), the drive pawl (4) being pincer-shaped with a branch (7,8) on diametrically opposite sides of the star wheel (9 ), and furthermore the branches (7,8) are each provided with a separate outlet (15,16) som ved drivpalens (4) svingningsbevegelse vekselvis gjor inngrep med stjernehjulet (9) på den med hensyn på vridningsretningen motsatte side av hver sin tann (20,25), karakterisert ved at i det minste den ene grenen (7,8) er forsynt med et ytterligere utspring (14,17) hvis periferiskewhich during the oscillating movement of the drive pawl (4) alternately engages the star wheel (9) on the opposite side of each tooth (20,25) with respect to the direction of rotation, characterized in that at least one branch (7,8) is provided with a further outcrop (14,17) if peripheral avstand fra det andre utspringet (15,16) på samme gren er storre enn en tanndeling hos stjernehjulet (9) og er valgt på slik måte at nevnte ytterligere utspring (14,17) efter en bestemt vridning av stjernehjulet (9) ligger an mot den i vridningsretningen vendte side hos en tann (22, 28) , samt at den relative stilling for nevnte to utspring på samme gren er utformet på slik måte at en resulterende kraft som opptrer ved anlegg av utspringene mot sine respektive tannsider på stjernehjulet, er rettet omtrent gjennom stjernehjulets (9) vridningsaksel (10).distance from the second projection (15,16) on the same branch is greater than a tooth pitch of the star wheel (9) and is chosen in such a way that said further projection (14,17) after a certain rotation of the star wheel (9) rests against the side facing in the twisting direction of a tooth (22, 28), as well as that the relative position of said two protrusions on the same branch is designed in such a way that a resulting force that occurs when the protrusions contact their respective tooth sides on the star wheel is directed approximately through the torsion shaft (10) of the star wheel (9).
NO01545/70A 1969-04-23 1970-04-22 NO127423B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE05777/69A SE333855B (en) 1969-04-23 1969-04-23

Publications (1)

Publication Number Publication Date
NO127423B true NO127423B (en) 1973-06-18

Family

ID=20267213

Family Applications (1)

Application Number Title Priority Date Filing Date
NO01545/70A NO127423B (en) 1969-04-23 1970-04-22

Country Status (11)

Country Link
US (1) US3646826A (en)
BE (1) BE749378A (en)
DE (1) DE2018840C3 (en)
DK (1) DK126060B (en)
FI (1) FI50455C (en)
FR (1) FR2039417A1 (en)
GB (1) GB1258861A (en)
NL (1) NL7005117A (en)
NO (1) NO127423B (en)
SE (1) SE333855B (en)
SU (1) SU380034A3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1368137A (en) * 1971-10-13 1974-09-25 Engish Numbering Machines Ltd Rotary indexing mechanisms
SE374953B (en) * 1973-10-03 1975-03-24 Svenska Dataregister Ab STEP FEED MECHANISM
US4229096A (en) * 1978-12-26 1980-10-21 Pitney Bowes Inc. Countdown and start mechanism for an electrostatic copier
US4245504A (en) * 1979-04-16 1981-01-20 The Singer Company One-way index for gas meters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US48927A (en) * 1865-07-25 Improvement in registers for counting revolutions
US390494A (en) * 1888-10-02 Lawn-mower

Also Published As

Publication number Publication date
NL7005117A (en) 1970-10-27
DK126060B (en) 1973-06-04
FI50455C (en) 1976-03-10
DE2018840A1 (en) 1971-07-22
DE2018840B2 (en) 1974-07-18
FI50455B (en) 1975-12-01
DE2018840C3 (en) 1975-02-27
FR2039417A1 (en) 1971-01-15
GB1258861A (en) 1971-12-30
BE749378A (en) 1970-10-01
SE333855B (en) 1971-03-29
SU380034A3 (en) 1973-04-20
US3646826A (en) 1972-03-07

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