DK9600221U3

DK9600221U3 - Bicycle with plug-in electro-assist motor

Info

Publication number: DK9600221U3
Application number: DK9600221U
Authority: DK
Inventors: Johann Schl
Original assignee: Egston Eggenburger Syst Elektr
Priority date: 1995-09-13
Filing date: 1996-06-25
Publication date: 1996-09-13
Also published as: AT1077U1

Description

i DK 96 00221 U3in DK 96 00221 U3

Opfindelsen angår en cykel med tilkoblelig elektro-hjælpemotor og et i området omkring dens bagagebærer anbragt katteøje, hvor elektrohjælpemotoren forsynes fra en strømforsyningsenhed, og hvor motorstømmen kan styres ved hjælp af en 5 motorstrømregulator, der er omgivet af et hus.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a bicycle with a plug-in electro-auxiliary motor and a cat eye located in the area around its luggage carrier where the auxiliary motor is supplied from a power supply unit and the motor current can be controlled by a motor current regulator surrounded by a housing.

Kendte cykler af denne art udmærker sig ved en meget miljøvenlig fremdrivning, hvor cyklisten ved stigninger og modvind gennem ekstra træden kan udligne elektrohjælpemotorens relativt ringe drejningsmoment. På grund af at der medio bringes en strømforsyningsenhed, der normalt realiseres med genopladelige akkumulatorer, opnås imidlertid en relativ høj egenvægt, der indskrænker effektiviteten af fremdrivningen.Known bikes of this kind are distinguished by a very eco-friendly propulsion, where the cyclist can increase the relatively low torque of the electric auxiliary motor through inclines and headwinds through the extra tree. However, due to bringing a power supply unit normally realized with rechargeable accumulators, a relatively high intrinsic weight is obtained which reduces the efficiency of the propulsion.

For at realisere en bedst mulig udnyttelse af den til rådighed stående energi, har ved sådanne kendte cykler en motor-15 strømregulator til omdrejningstalsregulering, med hvilken det bedste omdrejningstal af motoren til de gældende kørselsbetingelser kan indstilles. Kendte cykler har her motorstrøm-regulatoren anbragt direkte på styret, hvorved der fremkommer en ugunstig vægtfordeling mellem fremdrivningens enkelte 20 komponenter. På grund af den på styret indvirkende vægt, fremkommer der en usymmetrisk kraftvirkning, der påvirker cyklens kørselsstabilitet væsentligt. Der skal altså altid modstyres med hånden for at modvirke forhjulets tendens til slingren. Endvidere vandrer tyngdepunktet ved sådanne an-25 ordninger i retning af kronrøret, hvilket er til ulempe for cyklens køreegenskaber.In order to realize the best possible utilization of the available energy, in such known cycles, a motor speed regulator for speed control has the ability to adjust the best speed of the motor to the current driving conditions. Known bikes here have the motor current regulator placed directly on the handlebars, resulting in an unfavorable weight distribution between the individual 20 components of the propulsion. Due to the weight acting on the steering, an asymmetric force effect appears that significantly affects the ride stability of the bicycle. Thus, the hand must always be counter-stepped to counteract the tendency of the front wheel to wobble. Furthermore, the center of gravity of such devices migrates in the direction of the crown tube, which is detrimental to the driving characteristics of the bicycle.

Det er således opfindelsens opgave, at anvise en cykel af den indledningsvist nævnte art, ved hvilken der er realiseret en gunstig vægtfordeling af de enkelte komponen-30 ter, og hvor cyklens køreegenskaber trods hjælpefremdrivnin-gen er meget gode.It is thus the object of the invention to provide a bicycle of the kind mentioned above, in which a favorable weight distribution of the individual components has been realized and in which the riding characteristics of the bicycle are very good despite the auxiliary propulsion.

Ifølge opfindelsen opnås dette derved, at motorstrøm-regulatoren er anbragt i området omkring den bageste ende af bagagebæreren, og at katteøjet eventuelt er fastgjort til 35 motorstrømregulatorens hus.According to the invention, this is achieved by the fact that the motor current regulator is located in the region around the rear end of the luggage carrier and that the cat eye is optionally attached to the motor current regulator housing.

Derved er motorstrømregulatorens vægt på den ene side anbragt relativt lavt, og på den anden side anbragt i nærheden af den øvrige cykels tyngdepunkt. Dette indvirker sær- 2 DK 96 00221 U3 deles positivt på cyklens køreegenskaber, da den derved bliver mere kørselsstabil og sporsikker.Thereby, the weight of the motor current regulator is placed on one side relatively low, and on the other hand is placed near the center of gravity of the other bicycle. This has a particularly positive effect on the driving characteristics of the bike, as it thereby becomes more ride-stable and track-safe.

Desuden er elektromotoren ved de hidtil kendte cykler med ekstra elektrofremdrivning anbragt på cyklens ramme, eksempelvis på saddelrøret, eller på specielle på rammen anbragte stivere til montering af elektromotoren. Ved denne anordningsmåde fremkommer den ulempe at elektromotoren er monteret i relativ stor afstand fra jorden, derved forskydes hele cyklens tyngdepunkt opad, og håndteringen af cyklen bliver således sværere. Således bliver f. eks. støtte ved hjælp af en støttefod mindre stabil, den normale kørsel kræver mere opmærksomhed med hensyn til at opretholde ligevægten, og ved traikning vælter cykelen lettere. Endvidere må der til montering forudses specielle indretninger, som f. eks. de allerede nævnte stivere eller lignende monteringshjælpemidler, hvorved indbygning af en elektrofremdrivning i en almindelig cykel bliver omstændelig. For at anbringe tyngdepunktet gunstigst muligt ved hjælp af elektrohjælpemotoren ved en cykel ifølge opfindelsen og for at muliggøre en enkel montering af elektromotoren kan det i videre udformninger af opfindelsen forudses, at elektrohjælpemotoren, der fortrinsvis er udformet som gearmotor, er fastgjort til en plade, fortrinsvis støttefodsmonteringspladen, anbragt på baggaflen i området omkring kranken.In addition, the electric motor is mounted on the frame of the bicycle, for example on the saddle tube, or on special frames mounted on the frame for mounting the electric motor by the previously known bicycles with extra electric propulsion. In this mode of arrangement, the disadvantage is that the electric motor is mounted at a relatively large distance from the ground, thereby displacing the entire center of gravity upwards, and thus the handling of the bicycle becomes more difficult. Thus, for example, support with the aid of a support foot becomes less stable, normal driving requires more attention to maintain equilibrium, and during trailing the bicycle overturns more easily. Furthermore, special devices must be provided for mounting, such as, for example, the aforementioned struts or similar mounting aids, whereby the incorporation of an electric propulsion into a regular bicycle becomes cumbersome. In order to position the center of gravity most favorably by means of the electro-auxiliary motor of a bicycle according to the invention and to enable simple mounting of the electric motor, it can be envisaged in further embodiments of the invention that the electro-auxiliary motor, which is preferably designed as a gear motor, is fixed to a plate, preferably the support foot mounting plate, mounted on the rear fork in the area around the crank.

Derved kommer elektromotoren til at ligge relativt lavt over jorden, og der fremkommer dermed ingen forskydning opad af det samlede tyngdepunkt, tværtimod opnås sågar en fordelagtig forskydning nedad af cyklens tyngdepunkt. Ved anvendelse af denne på næsten enhver cykel seriemæssigt forhåndenværende .støttefodsmonteringsplade, er det ikke nødvendigt med et ekstra monteringshjælpemiddel til fastgørelse af elektrohjælpemotoren.In this way, the electric motor will be relatively low above the ground, and thus no displacement upwards of the total center of gravity is obtained, on the contrary even advantageous displacement downwards of the center of gravity of the bicycle is obtained. When used on almost any bicycle with a support foot mounting plate in series, an additional mounting aid is not required for attaching the electro-assist motor.

I videreudviklinger i henhold til opfindelsen kan gearmotoren have en monteringsflange, der kan indbringes i en not udformet på undersiden af støttefodspladen, og gearmotoren kan fastgøres til støttefodspladen ved hjælp af en skrue, der går gennem støttefodspladen og griber ind i et på monteringsflangen anbragt gevind.In further developments in accordance with the invention, the gear motor may have a mounting flange which may be inserted into a groove formed on the underside of the support foot plate and the gear motor may be secured to the support foot plate by means of a screw passing through the support foot plate and engaging a thread disposed on the mounting flange.

3 DK 96 00221 U33 DK 96 00221 U3

Ved en sådan udformning af monteringsflangen kan gearmotoren fastgøres særligt simpelt og pålideligt.In such a design of the mounting flange, the gear motor can be attached particularly simply and reliably.

Det kan være særligt fordelagtigt, at gearmotorens gear er udformet som snekkegear.It can be particularly advantageous that the gear motor gear is designed as worm gear.

5 Ved hjælp af et snekkegear kan de til fremdrivning af en cykel nødvendige drejningsmomenter overføres pålideligt ved forholdsvis små dimensioner af gearet.5 By means of a worm gear, the torque required to propel a bicycle can be reliably transmitted at relatively small dimensions of the gear.

Det kan endvidere forudses at gearmotorens udgående aksel kan forbindes med en drivforbindelse via en første fri-10 løbsindretning.Furthermore, it can be envisaged that the output shaft of the gear motor can be connected to a drive connection via a first free-running device.

Ved hjælp af denne indretning opnås, at gearet og elektromotoren ikke skal bevæges med ved normal trædedrift. Ved en udførelse som snekkegear er anvendelsen af et friløb tvingende nødvendigt, da snekkegearets udgående aksel ikke 15 kan bevæges udefra.By means of this device it is achieved that the gear and electric motor should not be moved during normal tread operation. In an embodiment such as worm gear, the use of a freewheel is imperative as the outgoing shaft of the worm gear cannot be moved from the outside.

I denne sammenhæng kan i en videreudvikling ifølge opfindelsen drivforbindelsen udgøres af et kædedrev der driver cyklens baghjul.In this connection, in a further development according to the invention, the drive connection can be constituted by a chain drive which drives the rear wheels of the bicycle.

Derved sikres en pålidelig overførsel af elektromo-20 torens drejningsmoment til baghjulet.This ensures a reliable transfer of the torque of the electric motor to the rear wheel.

I en videre udformning af opfindelsen kan motorstrøm-regulatorens hus være forbundet med bagagebærerens bageste tværstiver, fortrinsvis ved hjælp af en skrueforbindelse.In a further embodiment of the invention, the motor current regulator housing may be connected to the rear transverse struts of the luggage carrier, preferably by means of a screw connection.

Derved kan en meget solid og sikker fastgørelse af 25 motorstrømregulatorhuset opnås.This enables a very solid and secure attachment of the 25 motor current regulator housing.

Endvidere kan katteøjet være fastgjort til motor-strømregulatorens hus ved hjælp af en snaplåsforbindelse.Further, the cat's eye may be attached to the motor power regulator housing by a snap-lock connection.

På denne måde kan en hurtig montering af katteøjet udføres, der på grund af katteøjets ringe egenvægt, har helt 30 tilstrækkelig fasthed.In this way, a quick mounting of the cat's eye can be performed which, owing to the cat's low self-weight, has quite sufficient strength.

I denne sammenhæng kan snaplåsforbindelsen udgøres af snaplåsehager udformet på motorstrømregulatorens hus og åbninger udformet i bagvæggen af katteøjet, hvor snaplåseha-gen udgøres af et stiftformet element med et fremspring, i 35 hvilket der i længderetningen er findes en spalte, der muliggør en fjedrende låsning.In this context, the snap-lock connection can be constituted by snap-lock hooks formed on the motor current regulator housing and openings formed in the rear wall of the cat's eye, the snap-lock hook being constituted by a pin-shaped element with a protrusion, in which there is a longitudinal slot allowing a slit.

Derved lader katteøjet sig fastgøre på særlig enkel vis.This allows the cat's eye to attach in a particularly simple manner.

4 DK 96 00221 U34 DK 96 00221 U3

Et yderligere træk ifølge opfindelsen kan være, at motorstrømregulatoren har en første og en anden, af hinanden uafhængige, strømbegrænsningsindretninger, hvor den første strømbegrænsningsindretning begrænser motorstrømmen og den anden strømforsyningsstrømmen.A further feature of the invention may be that the motor current regulator has a first and a second independent power limiting device, the first current limiting device limiting the motor current and the second power supply current.

På denne måde forhindres det på den ene side, at motorstrømmen ved for høj belastning kommer ind i et for motoren utilladeligt område, og på den anden side forhindres det, at strømforsyningsenheden belastes ud over sin mærkestrøm.In this way, on the one hand, the motor current is prevented from entering an area which is unacceptable to the motor and, on the other hand, it prevents the power supply unit from being loaded beyond its rated current.

Ifølge en anden variant i henhold til opfindelsen kan det forudses, at motorstrømregulatoren til den elektriske adskillelse af strømforsyningsenheden og elektrohjælpemotoren har et motorstrømrelæ, der fortrinsvis kontrolleres af en omskifter, der kan spærres ved hjælp af en nøgle.According to another variant according to the invention, it can be envisaged that the motor current regulator for the electrical separation of the power supply unit and the electric auxiliary motor has a motor current relay, which is preferably controlled by a switch which can be blocked by a key.

Derved er det muligt at bevirke en sikker elektrisk adskillelse af strømkredsen. Dette kan tjene som nødafbryder, der på styret kan udføres tilsvarende lille, men som også via relæstyringen kan udkoble den gennem motoren virkende last, selv ved den maksimale strøm. Endvidere kan spærrefunktionen anvendes som tyverisikring.This allows safe electrical separation of the circuit. This can serve as an emergency switch that can be operated on the handlebars similarly small, but which can also switch off the load acting through the motor, even at the maximum current, via the relay control. Furthermore, the locking function can be used as an anti-theft device.

Ifølge en anden variant i henhold til opfindelsen kan der til styring af motorstrømregulatoren være udformet et drej egreb på cyklens styr, der i afhængighed af sin vinkelstilling drejer et modstandspotentiometer, der er en del af styrekredsen.According to another variant according to the invention, a rotating lever on the handlebar of the bicycle may be designed for controlling the motor current regulator, which, depending on its angular position, rotates a resistance potentiometer which is part of the control circuit.

Derved kan man indstille motorstrømmen efter behov, uden at skulle tage hånden fra styret.This allows you to adjust the motor current as needed, without having to take your hand off the handlebars.

I en videre udførelse af opfindelsen kan der i potentiometerets slutstillingen betjenes en til/fra afbryder, der bevirker en afbrydelse af motorstrømmen.In a further embodiment of the invention, in the final position of the potentiometer, an on / off switch can be operated which causes an interruption of the motor current.

Derved kan motorstrømmen ved hjælp af drejeknappen på simpel vis kobles til og fra.In this way, the motor current can easily be switched on and off by means of the dial.

Som et videre træk i henhold til opfindelsen kan strømforsyningsenheden udgøres af to genopladelige akkumulatorer, der befinder sig i to saddeltasker anbragt på bagagebæreren.As a further feature of the invention, the power supply unit may be comprised of two rechargeable accumulators located in two saddle bags located on the luggage carrier.

5 DK 96 00221 U35 DK 96 00221 U3

Derved bliver akkumulatorernes vægt fordelt særdeles godt i forhold til cyklens tyngdepunkt og motorstrømregula-toren, således at der opnås meget gode køreegenskaber for cyklen ifølge opfindelsen.Thereby, the weight of the accumulators is distributed very well in relation to the center of gravity of the bicycle and the motor current regulator, so that very good driving characteristics of the bicycle according to the invention are obtained.

5 Opfindelsen beskrives i det følgende, som udførelses eksempel og under henvisning til tegningen. Her viser fig. la den bageste del af en udførelsesforra af cyklen ifølge opfindelsen set fra siden, fig. Ib cykelen fra fig. la set bagfra, 10 fig. 2 træde- og elektrofremdrivningen set skematisk ovenfra, fig. 3 den på støttefodspladen anordnede gearmotor set fra siden, fig. 4 den på støttefodspladen anordnede gearmotor i 15 set ovenfra, fig. 5a et forstørret deludsnit af fig. la som eksplosions billede, og fig. 5b fig. 5a set bagfra i samlet tilstand.The invention is described below by way of example and with reference to the drawings. Here, FIG. 1a is a side view of the rear part of an embodiment of the bicycle according to the invention; FIG. 1b the bicycle of FIG. 1 is a rear view, FIG. 2 is a schematic top view of the step and electro propulsion; FIG. 3 is a side view of the gear motor mounted on the support foot plate; FIG. 4 is a top view of the gear motor mounted on the support foot plate; FIG. 5a is an enlarged partial section of FIG. 1a as an explosion image, and fig. 5b FIG. 5a from behind in overall condition.

Den i fig. la og lb viste cykel ifølge opfindelsen 20 har som en konventionel cykel en trædefremdrivning 50, 60, der er sammensat af en aksel 22 lejret i en krank 113, og et forreste kædehjul 53, der drives via pedaler 60, og som via en første drivkæde 61 driver et første bageste kædehjul 65 anbragt på et baghjul 45. Udover denne trædefremdrivning har 25 cyklen ifølge opfindelsen en elektrohjælpefremdrivning, der kan tilkobles efter behov. Denne omfatter en gearmotor 11, der er fastgjort til en plade 13, anbragt på baggaflen 12 i området omkring kranken (fig. 3). Ved den i fig. la, lb, 2, 3 og 4 viste udførelsesform af opfindelsen udgøres denne 30 plade af en støttefodsmonteringsplade 13, på hvilken der normalt er monteret en vippestøttefod, på hvilken motoren er fikseret ved hjælp af en skrueforbindelse. Elektrohjælpemotoren behøver ikke at være en elektrogearmotor, men kan også foreligge som andre former for elektromotorer.The FIG. 1a and 1b, according to the invention 20, as a conventional bicycle, has a step propulsion 50, 60 composed of a shaft 22 mounted in a crank 113, and a front sprocket 53 driven via pedals 60 and which via a first drive chain 61 drives a first rear sprocket 65 located on a rear wheel 45. In addition to this step propulsion, the 25 bicycle according to the invention has an electro-auxiliary propulsion which can be engaged as required. This includes a gear motor 11 attached to a plate 13 located on the rear fork 12 in the region of the crank (Fig. 3). In the embodiment shown in FIG. 1, 1b, 2, 3 and 4 of this invention, this plate is constituted by a support foot mounting plate 13, on which is normally mounted a rocker support foot, to which the motor is fixed by means of a screw connection. The electric auxiliary motor need not be an electric gear motor, but may also be available as other types of electric motors.

Gearmotorens 11 drivaksel 110 i fig. 2 og 3 kan forbindes med en fremdrivningsindretning, fortrinsvis sker denne forbindelse via en første friløbsindretning 114. Alternativt 35 6 DK 96 00221 U3 kan der dog også være en stiv forbindelse mellem drivaksel 110 og drivforbindelse.The drive shaft 110 of the gear motor 11 in FIG. 2 and 3 may be connected to a propulsion device, preferably this connection is effected via a first freewheeling device 114. Alternatively, however, there may also be a rigid connection between drive shaft 110 and drive connection.

I den i figurerne la til 4 viste udførelsesform udgøres denne drivforbindelse af et kædedrev, der driver bag-5 hjulet 45, hvor gearmotorens 11 drejebevægelse, svarende til trædefremdrivningen, overføres via udgangskædehjulet 111 til en anden drivkasde 62, og af denne via et andet bageste kædehjul 66 overføres til baghjulets aksel 10. Alternativt kan drivforbindelsen også udgøres af et tandremsdrev, kilerems-10 drev eller lignende.In the embodiment shown in Figures 1a to 4, this drive connection is constituted by a chain drive driving the rear wheel 45, in which the rotary movement of the gear motor 11, corresponding to the step propulsion, is transmitted via the output sprocket 111 to another drive box 62, and of this via another rear sprocket 66 is transmitted to the rear wheel shaft 10. Alternatively, the drive connection may also be a timing belt drive, V-belt drive or the like.

Forbindelsen af de to bageste kædehjul 65, 66 med bagakslen udgøres af en anden friløbsindretning 14. Denne kan enten være udført som konventionel enkel friløbsindretning, hvor de 2 bages te kædehjul 65, 66 er stift forbundet med hin-15 anden og via en fælles friløbsindretning virker på baghjulets aksel, eller som dobbelt friløbsindretning, dvs. hvert af de to kædehjul 65, 66 virker via en separat friløbsindretning på baghjulets aksel. Udførelsesformen som dobbelt friløb har overfor udførelsesformen med enkelt friløb den fordel, at 20 trædedrevets kaededrev ikke drejer med under drift af gearmotoren, altså at: pedalerne 60 forbliver i ro.The connection of the two rear sprockets 65, 66 with the rear axle is constituted by a second freewheeling device 14. This can either be designed as a conventional simple freewheel device, where the two rear sprocket wheels 65, 66 are rigidly connected to each other and via a common freewheel device. acts on the rear wheel axle, or as a dual freewheel device, ie. each of the two sprockets 65, 66 operates via a separate free-running device on the rear wheel shaft. The dual freewheeling embodiment has the advantage over the single freewheel embodiment that the 20-speed chain drive does not rotate during operation of the gear motor, thus: the pedals 60 remain at rest.

Måden gearmotoren 11 er fastgjort på cyklen, er vist i fig. 3 og fig. 4. Gearmotoren 11 har en monteringsflange 15, hvilken monteringsflange 15 kan indbringes i en not 130 25 xidformet på undersiden af støttefodspladen 13. Da gearmotorens 11 monteringsflange 15 er udformet til at passe nøjagtigt i denne not 130, sikres gearmotoren 11 mod drejning om den lodrette akse, ved den blotte indbringelse af monteringsflangen i denne not 130. Den egentlige fiksering af gearmotoren 30 11 sker ved hjaalp af en skrue 16, der går gennem støttefods pladen 13, og griber ind i et gevind 18 i monteringsflangen 15. Hertil kan der som vist på tegningen være anordnet en modplade 17 på oversiden af baggaflen 12, som hovedet af skruen 16 ligger an mod. En anordning med en sådan modplade 35 har overfor den anden tænkelige variant, nemlig at udforme skruen 16 med kortere gevind og lade skruehovedet ligge an mod støttefodspladen selv, den fordel, at skruehovedet er 7 DK 96 00221 U3 lettere tilgængeligt med værktøj og dermed lettere at montere .The way the gear motor 11 is attached to the bicycle is shown in FIG. 3 and FIG. 4. The gear motor 11 has a mounting flange 15, which mounting flange 15 can be inserted into a groove 130 x x-shaped on the underside of the support foot plate 13. As the mounting flange 15 of the gear motor 11 is designed to fit precisely in this groove 130, the gear motor 11 is secured against rotation about the vertical. axis, by the mere insertion of the mounting flange into this groove 130. The actual fixation of the gear motor 30 11 is accomplished by a screw 16 passing through the support foot plate 13 and engaging a thread 18 in the mounting flange 15. For this purpose, as shown in the drawing, a counterplate 17 is arranged on the upper side of the rear fork 12 against which the head of the screw 16 abuts. A device with such a counterplate 35 has opposite to the other conceivable variant, namely to design the screw 16 with shorter threads and to allow the screw head to abut against the support foot plate itself, the advantage that the screw head is more easily accessible with tools and thus easier to mount.

Da noten 130 ved samtlige cykeltyper i det væsentlige er parallel med krankakslen 22, kan udgangskædehjulet ved 5 hjælp af den ovenfor beskrevne fastgørelse af gearmotoren 11 ved passende nøjagtig udformning af monteringsflangen 15 på særlig nem vis rettes ind flugtende med det bageste kædehjul 66 ved næsten enhver cykeltype. Eftermontering af den her beskrevne elektrofremdrivning på en konventionel cykel er altså 10 på særlig enkel vis mulig.Since the groove 130 is substantially parallel to the crankshaft 22 for all types of bicycles, the output sprocket can be aligned with the rear sprocket 66 at almost any level by means of the fastening of the gear motor 11 described above, with suitable accurate design of the mounting flange 15. bike type. Thus, retrofitting the electro-propulsion described here on a conventional bicycle is possible in a particularly simple manner.

I det viste udførelseseksempel udgøres elektrohjælpe-motoren af en elektromotor med permanentmagnetisering og et meget lavohmet anker, med hvilken der kan nås en virkningsgrad større end 80%. Gearmotorens gear er f. eks. udformet 15 som snekkegear med stålsnekke og bronzehjul. Andre udførelsesformer af gearet er dog også mulige, som f. eks cylindrisk tandhjulsudveksling, konisk tandhjulsudveksling eller lignende .In the illustrated embodiment, the electro-auxiliary motor is constituted by an electric motor with permanent magnetization and a very low ohmic anchor, with which an efficiency greater than 80% can be achieved. The gear motor gear, for example, is designed as a worm gear with steel worm and bronze wheels. However, other embodiments of the gear are also possible, such as, for example, cylindrical gears, tapered gears or the like.

Den til drift af gearmotoren 11 nødvendige strømfor-20 syning 20, f. eks. en genopladelig akkumulator, er anbragt i to dele i en dobbelt saddeltaske 21 anbragt på cyklens bagagebærer 3. Fra motorstrømregulatoren forløber en delvist fritliggende ledning 71 til den bageste del af bagagebæreren 3, i hvis område motorstrømregulatoren 4 er anbragt ifølge 25 opfindelsen. Det katteøje 2 der ellers er anbragt på dette sted, er fastgjort til motorstrømregulatorens hus. Den kan dog i givet fald være anbragt et andet sted, eller helt udelades hvis den i et land ikke er foreskrevet af lovgivningen. Fra motorstrømregulatoren 4 udgår endnu en ledning 30 72, der ligeledes er delvist fritliggende, til forsyning af gearmotoren 11. Her er ledningerne 71, 72, så vidt det er muligt, lagt tæt på rammens forløb ved cyklen ifølge opfindelsen .The power supply 20 needed to operate the gear motor 11, e.g. a rechargeable accumulator, is arranged in two parts in a double saddle bag 21 located on the luggage carrier of the bike 3. From the motor current controller, a partially detached line 71 extends to the rear of the the luggage carrier 3, in which area the motor current controller 4 is arranged according to the invention. The cat eye 2 which is otherwise located at this location is attached to the motor current regulator housing. However, it may be located somewhere else, or omitted entirely if it is not required by law in a country. From the motor current controller 4, a further conduit 30 72, which is also partially detached, emerges to supply the gear motor 11. Here, the conduits 71, 72 are, as far as possible, placed close to the frame of the frame according to the invention.

Ved hjælp af et betjeningselement, der ikke er vist 35 på tegningen, der anbragt på rammen af cyklen ifølge opfindelsen, kan omdrejningstallet af gearmotoren 11, og dermed cyklens hastighed, påvirkes ved at styre motorstrømregulatoren 4. Motorstrømregulatorens indstillingsområde udgør 0- DK 96 00221 U3 a 100%. Denne har til opgave at holde den givne motorstrøm konstant uafhængigt af de optrædende belastninger. Særligt foretrukket er en udførelsesform af motorstrømregulatoren, hvor der er to af hinanden uafhængigt virkende strømbegræns-5 ninger, hvor en første strømbegrænsning forhindrer overskridelse af en maksimal motorstrøm, og en anden strømbegrænsning forhindrer overskridelse af en maksimal strømforsyningsmærkestrøm. Herved er en beskyttelse af begge disse indretninger sikret under alle forekommende betingelser uafhængigt at 10 driftssituationen. De til den elektriske forbindelse af betjeningselementet med motorregulatoren nødvendige ledninger er ikke vist i figurerne, men forløber imidlertid langs rammedelene eller i selve rammen, således at brugeren ikke forstyrres i sine bevægelser.By means of an operating element not shown in the drawing arranged on the frame of the bicycle according to the invention, the speed of the gear motor 11, and thus the speed of the bicycle, can be influenced by controlling the motor current controller 4. The setting range of the motor current controller is 0- DK 96 00221 U3 and 100%. The task of the latter is to keep the given motor current constant independently of the loads occurring. Particularly preferred is an embodiment of the motor current regulator, wherein there are two independently acting current constraints, wherein a first current limitation prevents the overflow of a maximum motor current, and a second current limitation prevents the overflow of a maximum power supply rated current. In this way, protection of both these devices is ensured under all operating conditions regardless of the operating situation. The wiring needed for the electrical connection of the control element to the motor controller is not shown in the figures, but runs along the frame parts or in the frame itself so that the user is not disturbed in his movements.

15 Det ikke viste betjeningselement kan eksempelvis være udformet således, at styrets greb er udformet som drej egreb, der i afhængighed af sin vinkelstilling drejer et potentiometer. Den respektivt indstillede vinkelstilling svarer så til en modstandsværdi, der anvendes til styring af motorstrømmen. 20 Potentiometeret kan i sin slutstilling have en omskifter der, styrer et motorstrømrelæ, således at motorstrømmen kan slås til og fra. Endvidere kan der på styrgrebet eller i dets område være en nødafbryder til afbrydelse af motorstrømmen, således at der kan opnås en sikker adskillelse af motor og 25 strømforsyning. Ved at styre et motorstrømrelæ kan også store strømme klares af selv en meget lille afbryder. Endvidere kan der også være en til/fra afbryder, der kan spærres med en nøgle, der spærbart kan afbryde forbindelsen mellem motor og strømforsyning, hvilket under visse omstændigheder kan an-30 vendes til tyverisikring.15 The control element not shown may, for example, be designed such that the handle of the handlebar is designed as a rotary lever which, depending on its angular position, rotates a potentiometer. The respective set angular position then corresponds to a resistance value used to control the motor current. In its final position, the potentiometer may have a switch there which controls a motor current relay so that the motor current can be switched on and off. Furthermore, on the control handle or in its area, there may be an emergency switch for disconnecting the motor current so that a safe separation of the motor and power supply can be achieved. By controlling a motor current relay, large currents can also be handled by even a very small circuit breaker. Furthermore, there may also be an on / off switch which can be locked with a key which can lockably disconnect the connection between the motor and the power supply, which in some circumstances can be used for theft protection.

Endvidere kan der på styret være anbragt en tofarvet LED-indikator, der ved grønt indikerer driftsklar, og ved rød indikation advarer mod lav ladetilstand af strømforsyningen, f. eks. akkumulatoren.In addition, a two-color LED indicator on the board may be placed, which indicates green ready for operation and in red indicates warning against low charge state of the power supply, eg the accumulator.

Cyklen ifølge opfindelsen er udrustet med en normal bagagebærer 3, der er monteret ved den bageste hjulgaffel og hjulaksel. I det væsentlige består den af to bøjler der for- 35 9 DK 96 00221 U3 løber langs siden af baghjulet 45 og en tværstiver 1. På denne er motorstrømregulatoren anbragt.The bicycle according to the invention is equipped with a normal luggage carrier 3 mounted at the rear wheel fork and wheel axle. Essentially, it consists of two shackles that extend along the side of the rear wheel 45 and a transverse strut 1. On this the motor current regulator is arranged.

I fig. 5a og 5b er detaljen A fra fig. la vist, hvor to skruer 31 er skruet igennem tilsvarende boringer 49 i 5 bagagebærerens 3 tværstiver 1 ind i gevindboringer 48 i motorstrømregulatorens 4 hus 40. Forbindelsen af tværstiveren 1 og motorstrømregulatorhuset kan dog også gennemføres med andre egnede forbindelsesmidler. Derved kan motorstrømregulatorens 4 hus 40 skrues fast på bagagebæreren 3. På denne måde 10 opnås en meget.gunstig vægtfordeling på cyklen og en stabil fastgørelse af motorstrømregulatoren 4.In FIG. 5a and 5b are the detail A of FIG. 1a, two screws 31 are screwed through corresponding bores 49 in the transverse struts 1 of the luggage carrier 3 into threaded bores 48 in the housing 40 of the motor current regulator 4. However, the connection of the transverse stiffener 1 and the motor current regulator housing can also be carried out with other suitable connecting means. In this way, the housing 40 of the motor current regulator 4 can be screwed onto the luggage carrier 3. In this way 10 a very favorable weight distribution is obtained on the bicycle and a stable attachment of the motor current regulator 4.

Et katteøje 2 fastgøres med en snaplås 5 til motorstrømregulatorens 4 hus 40. Hvor snaplåsen 5 består af 2 låsehager anbragt på den overfor husets 4 fastgørelsesside 15 liggende væg, der kan bringes til indgreb i en boring 59 i katteøjets 2 bagvæg. Hvor låsehagerne kan være udformet således, at de griber ind i de åbninger, der er forudset til fastskruningen af katteøjet. Hvor katteøjet er et gængs reflekselement til cykler, som er obligatorisk i mange lande. 20 Låsehagen 5 udgøres ifølge fig. 5a af et stiftformet element med et fremspring, ved hvilket der i længderetningen er udtaget en spalte, der muliggør den fjedrende låsning af låsehagerne 5. I indskudt tilstand går de under indskydningen i åbningen 59 sammenpressede dele igen tilbage til deres ud-25 gangsposition, medens fremspringet forhindrer at elementet kan glide ud af åbningen 59.A cat eye 2 is secured with a snap lock 5 to the housing 40 of the motor current regulator 4, where the snap lock 5 consists of 2 locking hooks arranged on the wall opposite the housing side 15 of the housing 4 which can be engaged in a bore 59 in the back wall of the cat eye 2. Where the catches may be so designed as to engage the apertures provided for the fastening of the cat's eye. Where the cat's eye is a common reflex element for bicycles, which is mandatory in many countries. 20 The locking catch 5 is formed according to FIG. 5a of a pin-shaped member having a protrusion, in which a longitudinal slot is provided which allows the resilient locking of the locking hooks 5. In the retracted state, the parts compressed during opening in the opening 59 return to their starting position while the projection prevents the element from sliding out of the opening 59.

Fastgørelsen, af, katteøjet 2 på motorstrømregulatorhuset 4 kan dog også ske med vilkårligt valgte andre forbindelsesmidler .However, the attachment of the cat eye 2 to the motor current regulator housing 4 may also be effected by any other selected means of connection.

Claims

A bicycle with a switchable electro-auxiliary motor (11) and a cat eye (2) located in the area around its luggage carrier (3), the electro-auxiliary motor (11) being supplied from a power supply unit (20) and the motor current being controlled by a motor current regulator (40) surrounded by a housing (4) which is new in that the motor auxiliary motor regulator (40) is located in the area around the rear end of the luggage carrier (3) and that the cat eye (2), if any, 10 is attached to the housing (4) of the motor current controller (40).

A bicycle according to claim 1, which is new in that the electro-auxiliary motor, which is preferably designed as a gear motor (11), is attached to a plate, preferably the support foot mounting plate (13), mounted on the rear fork (12) in the region of about the crank (1). .

A bicycle according to claim 2, which is new in that the gear motor (11) has a mounting flange (15) which can be inserted into a groove (130) formed on the underside of the support foot plate (13) and that the gear motor (11) can be fixed to the support foot plate, by means of a screw (16) passing through the support foot plate (13) and engaging a thread disposed on the mounting flange.

A bicycle according to claim 2 or 3, which is new in that the gear of the gear motor (11) is designed as worm gear.

A bicycle according to one of claims 2 to 4, which is new in that the output shaft (110) of the gear motor (11) can be connected to a drive connection via a first free-running device (114).

Bicycle according to one of claims 1 to 5, which is new in that the drive connection is constituted by a chain drive which drives the rear wheels of the bicycle.

A bicycle according to one of claims 1 to 6, which is new in that the housing (4) of the motor current regulator (40) is connected to the rear transverse struts of the luggage carrier, preferably by means of a screw connection (31, 49, 48).

A bicycle according to one of claims 1 to 7, which is new in that the cat eye (2) is attached to the housing (4) of the motor current regulator (40) by means of a snap-lock connection (5, 59). DK 96 00221 U3

A bicycle according to claim 8, which is new in that the snap-lock connection is constituted by snap-lock hooks (5) formed on the housing (4) of the motor current regulator (40) and openings formed in the rear wall of the cat eye (2), wherein the snap-lock hitch (5) comprises a pin-shaped member with a protrusion, in which there is a longitudinal slit allowing a resilient locking.

A bicycle according to one of claims 1 to 9, which is new in that the motor current regulator (40) has a first and a second, 10 independent, current limiting device, the first current limiting device limiting the motor current and the second power supply current.

A bicycle according to one of the preceding claims, which is new in that the motor current regulator (40) for the electrical separation of the power supply unit (21) and the electric auxiliary motor (11) has a motor current relay, which is preferably controlled by a switch which can is blocked by a key.

A bicycle according to one of the preceding claims, which is new in that for controlling the motor current regulator 20 a rotary lever is formed on the handlebar of the bicycle which, depending on its angular position, rotates a resistance potentiometer which is part of the control circuit.

A bicycle according to claim 12, which is new in that in the final position of the potentiometer, an on / off switch can be operated which causes an interruption of the motor current.

A bicycle according to one of the preceding claims, which is new in that the power supply unit (21) consists of two rechargeable accumulators located in two saddle bags (20) arranged on the luggage carrier (3).