WO1999033697A1 - Cycle - Google Patents

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Info

Publication number
WO1999033697A1
WO1999033697A1 PCT/GB1998/003790 GB9803790W WO9933697A1 WO 1999033697 A1 WO1999033697 A1 WO 1999033697A1 GB 9803790 W GB9803790 W GB 9803790W WO 9933697 A1 WO9933697 A1 WO 9933697A1
Authority
WO
WIPO (PCT)
Prior art keywords
axis
drive
wheel
cycling apparatus
frame
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/GB1998/003790
Other languages
English (en)
Inventor
Eduardo Urcia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YONG PAUL
Original Assignee
YONG PAUL
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
Priority claimed from CN98102295A external-priority patent/CN1221692A/zh
Application filed by YONG PAUL filed Critical YONG PAUL
Priority to AU16764/99A priority Critical patent/AU1676499A/en
Publication of WO1999033697A1 publication Critical patent/WO1999033697A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/36—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio

Definitions

  • This invention relates to cycling apparatus and, in particular, although not solely, bicycles and similar apparatus. However, aspects of the invention may be applied to 5 motorized cycles.
  • the conventional bicycle comprises two wheel? suppo ⁇ ed on a frame.
  • Intermediate of the front and back Q wheels is a rotatably moimted set of pedals to drive a chain.
  • the chain itself drives the rear wheel to provide power to the bicycle.
  • bicycles have provided a plurality of gears at each of the ends of the drive chain so that the chain can be manoeuvred by linkages to a variety of sized gears adjacent the pedals and adjacent ⁇ e rear axle. It is _2o me rat i° beuveen the particular gears at each point which determines the overall gear ratio.
  • the pedals are situated forward of the sea t wi t h the rear axle some distance behind the seat to accommodate the drive chain between the two. It is necessary to accommodate the pedals and the associated gears around the pedal axis between the front and rear wheels on the frame. This constrains t he current design of such frames 15 and arrangements for such bicycles generally.
  • the invention consists in a cycling apparams comprising: drive means to provide rotational drive about a first axis; 5 - at least two gears mounted about a second axis; a first drive chain engaged about said first axis and receiving drive therefrom to drive rotation of one of said gears on said second axis; a wheel mounted on a wheel axis; and a second drive chain receiving drive from said at least second gear about said r.
  • the invention consists in a cycling apparatus comprising: a front wheel; 5 - a rear wheel; a cycle frame mounting said front and rear wheels; pedals mounted on a pedal axis; and wherein said pedal axis is on or adjacent said rear wheel axis.
  • the second axis may be at a higher elevation than the wheel axis.
  • the cycling apparatus may include a further wheel spaced from said wheel, which wheels may be m line, and the distance from said wheel axis to tne furthermost portion of the furthermost: gear may be greater than the distance from sa d wheel axis to the nearest portion of said further wheel .
  • the apparatus may include at least two chain tensioners which may be spaced from each other and one of the chain tensioners may be m the region of the wheel axis and the other may be in the region of the second axis.
  • a frame member may extend between said second ax s and said wheel axis and the gears, drive chains and wheel may be connected to said frame member.
  • Said frame member may be detachably mounted on a further frame member of said cycling apparatus.
  • the present invention includes any combination of the herein referred to features or limitations.
  • FIG. 1 is a side view of one embodiment of the apparatus
  • Fig. 2 is a front view of the embodimen t of Fig. 1;
  • Fig. 3 is a cross sec t ional view through the pedal and rear wheel access of an embodiment of the invention
  • Fig. 4 is a cross sec t ional view through a second access of an embodimen t of the apparatus
  • Fig. 5 is a side view of a portion of a frame of one embodiment of t he appara t us; and Figs. 6A, B and C are schematic diagrams display t he drive arrangemen t of an embodiment of the apparatus.
  • aspects of the invention may be applied to motor driven vehicles including mo t or cycles. This is particularly the case for relatively sunple cycles w ⁇ h mo t ors mounted.
  • Figs. 1 and 2 bicycle 1 can be seen t o be provided wi t h front and rear wheels 2 and 3 mounted on a frame 4. Also mounted on t he frame 4 are handled bars 5 rotatably mounted within the frame 4 and connec t ed to the fron t view 2 such that ro t a t ion of the handle bars 5 rotates the front view in accordance wi t h those fi tt ings of a conven t ional bicycle.
  • a seat 6 is provided for comfor t and, also i n accordance with a conven t ional bicycle, the bicycle is powered through the user applying weigh t t o ro t a t e pedals 5 7.
  • FIG. 6A to 6C schematic diagrams of both the conventional bic y cle and embodiments of this invention are provided in Fig. 6A to 6C.
  • the 5 conventional bicycle can be seen in Fig. 6A.
  • the rear wheel 3 is rota t ed by drive applied to a gear, sprocke t or other apparatus S to rece i ve rota t ional drive.
  • This means 8 to receive the rotational drive is i t self driven by a su it able drive chain 9 or similar.
  • T TKhis gear or sprocke t 10 drives t he chain 9 to in t urn ro t a t e the sprocket S connected t o t he rear wheel 3 .
  • a plurality of gears may be provided about the axis of the gears 8 and 10 as shown.
  • the chain 9 can move between the gears t o accommodate differen t gear i ng .
  • addi t ional gears have been neglected for the time being.
  • FIG. 6B an alternative drive mechanism in accordance wi t h one embodimen t of t he i nven t ion is shown.
  • t he rear wheel 3 is aga i n moun t ed on an axle con t a i ning a gear, cog, sprocket or similar means 8.
  • This receives drive from t he chain 9 which itself is driven by a sprocket 12 in the same manner as the conventional bicycle.
  • the sprocket 12 is in t erconnec t ed wi t h a fur t her sprocket or gear 14.
  • This second gear or sprocket receives drive from a second drive chain 15. It is the second drive chain 15 which is driven a t a further end by a sprocket or chain drive 10 connected to pedals or similar drive means 11. Looking at the arrangement in Fig. 6B, it can be seen that the power from the pedals 11 undergoes a first change in gear ratio due to the difference in circumference be t ween the gears 10 and 14. Wi t h the gears 14 and 12 being interconnected, rotation of the gear 12 is 1: 1 with the gear 14. The drive to the rear wheel 3 can then be further man i pula t ed by the gear ra t io be t ween the gear 12 and the final gear 8 on the rear wheel.
  • t ha t t he apparatus in Fig. 6B provides an intermediate axis on which t he gears 12 and 14 are moun t ed t o extend t he overall drive chain and accommoda t e ex t ra gearing.
  • FIG. 6C A preferred arrangement for this invention is shown in Fig. 6C.
  • t t he gear i ng and opera ti on of the drive chain are the same as shown i n Fig. 6B .
  • the only difference is t ha t the posi t ion of the drive gear 10 and pedals 11 has changed t o be coinciden t wi t h the rear axle of t he wheel 3.
  • the gear 10 and gear 8 are na t ionally independent on the axis. Therefore, the pedals 11 can cause rota ti on of t he gear 10 which drives the chain n , ⁇ me cham 15 caus i ng rotation of gear 14.
  • the direct connection be t ween the gear ,4 and gear ,2 causes rotation of the gear ,2 driving rotation of the drive chain 9.
  • the drive chain 9 t otates the gear 8 which, a,though in the sa t ne axis as gear 10. is capable of independen t rotadon .
  • Tie wheel 3 can take the drive directiy from the gear 8.
  • the gear rano from ⁇ inica, drive to the rear wheei is then de t e ⁇ mned by the rat i o of the gears 10 and 14 as well as the ratio of the gears 12 and 8 .
  • the pedals 11 are connected through t heir cranks to the axle 16 in t erconnecting the pedals 11. As with a no ⁇ nal bicycle configura ti on, the pedals 11 are provided on opposed sides of the cycle.
  • T h is interconnected with the pedais 11 or axle IS to rotate directly with those pedals.
  • the frame of the cycle 4 is interconnected by arms 17 and 18 about the axle 16. Bearings 19 and 20 may be provided to allow rotation of the axle 16 withm the mountings of the frame portion 17 and 18.
  • the whee, 3 may be simiiariy mounted about the axle 16 bu t ro t ationaily independent therefrom.
  • the rear whee! 3 may take drive directiy from the gear 8 through a direc t in t erconnection between the gear 8 and wheel 3.
  • a cross section is provided of the independent second axis carrying the add ona j gears not directly driven by the pedals o t directly driving ,he wheel.
  • This gear se incudes a firs t gear 12 mounted on an convention, axie 2, pass.n, throu.h the frame 4.
  • Asain bearincr * 11 r, administratj ⁇ ⁇ am, b ear i ngs 22 and 2 may be provided to allow t he axle 21 to ro t ate freely within the frame 4.
  • a set of gears 24 Interconnected with the axle 21 and regionally fixed therewi t h is at least one or preferabiy , a set of gears 24.
  • TOs set of gears 24 may be seen to replace the s,ng,e gear 14 .
  • muitip.e gears a any point in the drive chain aliows a greater number of gear ranos and gear combina t ions to be provided.
  • t he gear set 24 ⁇ nay cornpr.se a standard gear set typicaUy mounted on the rear ax,e of a conven ti ona, bicyc.. .
  • derailers and other alignment and chain iength adjusters 28 may bc provMed wherever a ⁇ . ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇
  • accommoda t e changes in the iength of the chain and to align the chain between the gears when the selections are made.
  • appara s is typical on conven t iona, bicyCes and the same f i ttings can be ut i lized in one preferred embodiments of this invent i on.
  • a reiativeiy simple frame mechan i sm can be provided.
  • the drive means in the form of the pedals being moun t ed substantial about the rear axle , there is no need for the positioning of a pedai se t i ntermedia t e of the front and rear whee.s. I, is possible , wherever signif.candy shorten the b.cycie and remove the tower frame members which are reguiarly provided merely to carry die pedai set .
  • a simple triangle frame as shown in Fig. 1 can be provided .
  • the frame 4 may comprise an upper bar 29 holding t he seat 6 .
  • the handie bar column 30 can be connected to a downwardly angled tubuiar member 31 direc t ed towards the rear axle of the bicv H « . ⁇ « ⁇ • t ne bi cycle. So far, the members provided are identical to those on the conventional bicycle.
  • t is p0 s si b,e to simpiy cu, a conven t ional bicvcle at the ends of the members 29 and 31 as shown by ends 32 and 33 respec ti vel y to provide the front por t ion of the frame, fron t whee, and steering co.umn.
  • portions can t hen be provided by means of a singie member 34 carrying t he second axis gear se t 35 and connected to the rear whpp! 3 ⁇ r m , relieve ⁇ ⁇ , , rear whee, . I, may be desirable to pivotally moun t t he member 34 t o the
  • I ⁇ n n * th,i ⁇ s arrangemen t, the steering coh i n 30 and first angied portion 3, can accommodate receipt of a plug 38 , compassion interconnect the bar 34 directly into the portion 31.
  • a support direcUy to the upper member 29 can be provided via fining 39.
  • a quick release hitch 40 allows access to the central
  • the apparatus provides a cycling apparatus hav i ng a drive axis, an axis carrvin ⁇ ** a set nf r ⁇ ro r ⁇ ; and exerture vm a set of gears to i ncrease or decrease the ra t io of the gears and a t hird axis carr -vin - ⁇ the rear wh neeee!.
  • Allrthhmoughh ⁇ th.e fi ⁇ rs .t and ., th , i •rd axes may be coinciden t, t hey are ro t ationaily independent to perform their own funct u ion i s i . T ⁇ h n e e u us ⁇ e n off TM coinci ⁇ participatingdent axes i •n th ceremonii ⁇ s preferred embodiment allows a shor t er cvcl m h Anlagen r r Cycle t0 be Provided and a simplified frame mechanism.
  • the additional gears provided by the second axis gear set allows conventional apparatus to perhaps double the gear ratios provided on a standard bicycle. Instead of an overall gear ratio of ten gears engine from a ratio of 1 : 1 to a ratio of 4: 1 , the present apparatus may provide some twenty different gear combinations ranging from, for example,
  • the simplified frame may allow substantially lighter cycling apparatus and the arrangement of the pedals coincident with the rear axle is likely to provide the pedals more directly beneath the seat 6 or even behind the seat 6 if desired. This might allow greater flexibility in designing cycles and the correct riding positions for greater speed or economical

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

L'invention concerne une bicyclette (1) ou autre type de cycle dans lequel la première chaîne (15) part de la roue menée par pédale (10), disposée coaxialement à la roue arrière (3), et arrive dans un ensemble engrenage intermédiaire (12, 14), et la deuxième chaîne (9), partant de cet ensemble engrenage intermédiaire (12, 14), revient pour mener la roue arrière (3). Cette configuration permet d'ajouter à cette bicyclette des rapports d'engrenage supplémentaires pouvant se décliner dans une large gamme de rapports. En plaçant les pédales (11) autour de l'essieu arrière, le cadre (4) peut également être raccourci et simplifié pour fournir un cycle au cadre plus léger. Ce cadre (4) peut être équipé partiellement d'une partie d'une bicyclette existante à laquelle on aura apporté des modifications pour obtenir une bicyclette transformée à partir d'un modèle classique.
PCT/GB1998/003790 1997-12-29 1998-12-17 Cycle Ceased WO1999033697A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU16764/99A AU1676499A (en) 1997-12-29 1998-12-17 Cycling apparatus

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PH1547697 1997-12-29
PHUM-15476 1997-12-29
CN98102295.2 1998-06-19
CN98102295A CN1221692A (zh) 1997-12-29 1998-06-19 自行车装置

Publications (1)

Publication Number Publication Date
WO1999033697A1 true WO1999033697A1 (fr) 1999-07-08

Family

ID=25744621

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/003790 Ceased WO1999033697A1 (fr) 1997-12-29 1998-12-17 Cycle

Country Status (3)

Country Link
JP (1) JPH11245875A (fr)
AU (1) AU1676499A (fr)
WO (1) WO1999033697A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2434565A (en) * 2006-01-10 2007-08-01 Alan Burr Bicycle drive transmission

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015037904A (ja) * 2013-05-01 2015-02-26 正明 手鹿 動輪と同軸の回動クランク装置。

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE502473A (fr) *
FR346953A (fr) * 1904-09-07 1905-02-17 Max Haertel Dispositif de commande pour bicyclettes
FR922168A (fr) * 1945-12-18 1947-06-02 Dispositif de transmission de puissance à vitesse variable
FR966149A (fr) * 1948-05-11 1950-10-02 Système de commande à trois vitesses pour cycles et autres véhicules à pédales
EP0154118A2 (fr) * 1984-01-16 1985-09-11 TOUR MECCANICA S.r.l. Vélo de course
WO1992010394A1 (fr) * 1990-12-07 1992-06-25 Boland Gerard Plateaux intermediaires solidaires pour bicyclette

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE502473A (fr) *
FR346953A (fr) * 1904-09-07 1905-02-17 Max Haertel Dispositif de commande pour bicyclettes
FR922168A (fr) * 1945-12-18 1947-06-02 Dispositif de transmission de puissance à vitesse variable
FR966149A (fr) * 1948-05-11 1950-10-02 Système de commande à trois vitesses pour cycles et autres véhicules à pédales
EP0154118A2 (fr) * 1984-01-16 1985-09-11 TOUR MECCANICA S.r.l. Vélo de course
WO1992010394A1 (fr) * 1990-12-07 1992-06-25 Boland Gerard Plateaux intermediaires solidaires pour bicyclette

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2434565A (en) * 2006-01-10 2007-08-01 Alan Burr Bicycle drive transmission

Also Published As

Publication number Publication date
AU1676499A (en) 1999-07-19
JPH11245875A (ja) 1999-09-14

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