WO2012063098A1 - Unité de suspension arrière pour une utilisation après fabrication dans des vélos pliables - Google Patents

Unité de suspension arrière pour une utilisation après fabrication dans des vélos pliables Download PDF

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Publication number
WO2012063098A1
WO2012063098A1 PCT/IB2010/055065 IB2010055065W WO2012063098A1 WO 2012063098 A1 WO2012063098 A1 WO 2012063098A1 IB 2010055065 W IB2010055065 W IB 2010055065W WO 2012063098 A1 WO2012063098 A1 WO 2012063098A1
Authority
WO
WIPO (PCT)
Prior art keywords
rear suspension
suspension unit
folding
linkage
unit according
Prior art date
Application number
PCT/IB2010/055065
Other languages
English (en)
Inventor
Mark Antony Higgon
Original Assignee
Mark Antony Higgon
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 Mark Antony Higgon filed Critical Mark Antony Higgon
Priority claimed from GB1018811.8A external-priority patent/GB2475394B/en
Publication of WO2012063098A1 publication Critical patent/WO2012063098A1/fr

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00Axle suspensions
    • B62K25/04Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K25/28Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00Axle suspensions
    • B62K25/04Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K25/28Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
    • B62K25/286Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay the shock absorber being connected to the chain-stay via a linkage mechanism

Definitions

  • the present invention relates generally to the field of vehicle suspension systems, and more particularly, to a rear wheel suspension assembly for aftermarket use in folding bikes.
  • Folding bikes offer flexibility and ease of commuting via train/bus and bike as they can be carried free on public transport. Further they are virtually thief-proof, a huge advantage in major cities where bike theft is commonplace. They also fit effortlessly into cramped spaces so are ideal for apartment owners. When used as a commuter bike, they offer a healthy, green method of transport and potential cost savings versus a car when used with public transport for longer journeys. Folding bikes are also great as training bikes for cyclists travelling abroad and are super easy to pack as they simply fold into a travel bag.
  • a good and compact rear suspension system in a folding bike is essential for a comfortable ride when the folding bike is being used for commutation on a daily basis and also for avid travelers.
  • Rear suspension systems are commonly used on bicycles, and are especially common on mountain bikes.
  • the rear suspension system helps to reduce the impact felt by the rider resulting from forces exerted on a rear wheel when traveling over rough terrain.
  • impact forces act on the rear wheel, the rear suspension system allows the rear wheel to be displaced relative to the bicycle frame, which, in turn, acts to absorb the impact.
  • the conventional bicycle rear suspension designs essentially comprise a main pivot located on a main frame of the bicycle for pivotally connecting thereto a swing arm or a rear frame portion.
  • the rear wheel pivotally moves in a circular path of constant radius about a single axis of rotation which is fixed relative to the main frame of the bicycle.
  • the rear suspensions are
  • linkage systems comprising upper and lower links adapted to pivotally connect the swing arm to the front frame portion of the bicycle such as to allow the rear wheel to travel in a different arc than with a single link system.
  • the conventional rear suspension designs include multiple lever members and, therefore, multiple pivots, typically exhibit better isolation of pedaling forces and braking forces from the rear suspension.
  • a multiple lever rear suspension assembly will have a pair of lower arms i.e., chain stays, pivotally connected to the bicycle frame at a forward end and a link member pivotally mounted to the main frame at a location above the chain stays.
  • a pair of rearward arms i.e., seat stays, are pivotally connected between rearward ends of the chain stays and link member.
  • the rear wheel may be carried by either of the chain stays or seat stays.
  • the rear shock absorber is operably positioned between the link member and the main frame. As a result, placement of the shock absorber is at a
  • the rear wheel path is permanently fixed by the rear suspension design. Different rear wheel paths cause different reactions in the way the bicycle handles. Therefore, one rear wheel path that is suitable to a particular rider or condition may be unsuitable for another rider or condition.
  • rear suspensions for bicycles comprise shock absorber systems including various types of springs and shock absorber systems and devices, and a pivot system defining the path of the rear wheel upon impact thereof with an uneven ground surface.
  • UK Patent Publication No: GB2454021 discloses a bicycle with a rear suspension system consisting of a link member, which connects pivotally
  • a shock absorber is connected at a forward end on a down tube of the main frame, and slopes downwards and rearwards to connect to an upper pivot of the link member on a second axis.
  • Chain stay members connect pivotally to a lower pivot point of the link member and extend in a rearward direction and connect with a mount for receiving a rear wheel and hence, via the mount and above the wheel axis, pivotally connecting to seat stay members.
  • the members are pivotally connected at an upper pivot point to a seat tube of the main frame.
  • the shock absorber extends between the link support plates.
  • UK Patent Publication No: GB2417468 claims a Bicycle rear suspension comprising of a frame, a rear wheel and a rear suspension which comprises a swing arm carrying the wheel and two pivot links pivotably connected at respective pivot points with the frame and at respective pivot
  • UK Patent Publication No: 2360497 describes a Bicycle frame and rear suspension assembly consisting of a frame, a rear wheel swing arm pivotably mounted on the frame and a spring and damper unit acting between the frame and the arm.
  • the unit is connected with the arm at a selectable one of a plurality of different positions each allowing a respective one of a plurality of different amounts of pivot movement of the arm relative to the travel for the same spring or damping stroke of the unit.
  • UK Patent Publication No: GB2378161 claims a folding structure for a bicycle that has seat strut has a pair of lugs at its rear end that are connected to a shock absorber. The connection is releasable due to arcuate recesses in the lugs that locate a releasable fastening with the
  • shock absorber The other end of the shock absorber is connected to a chain stay via holes.
  • US 5240269 (A) claims a suspension device employed between the rear wheel and the frame of a mountain bike.
  • a lever arm pivoted to the frame carries the rear wheel at one end and the suspension device at the other.
  • the rear wheel portion of the lever arm is about four times as long as is the suspension device portion.
  • the suspension device includes a hollow elongated elastomeric spring carrying an aluminum telescoping portion.
  • the telescoping portion supports the elastomer while allowing reciprocating movement along a major axis, but not allowing any rotational movement around that same axis.
  • US 4789174 comprises suspension bicycle in which a rear suspension includes swing arms, control arms, and hub plates connected to the seat riser tube of the frame in a trapezoidal arrangement.
  • the swing arms
  • control arms, and hub plates are configured to balance the forces applied to the rear wheel by the chain during pedaling so as to prevent energy absorbing movement of the rear suspension as the result of such pedaling.
  • a shock absorber is also connected to the swing arms to absorb shocks during riding.
  • the suspension of the present invention also is configured to provide improved traction during pedaling uphill or over uneven surfaces.
  • US 6206397 (B1 ) provides a rear suspension system for a bicycle.
  • the system directs the rear wheel along a predetermined, S-shaped path as the suspension is compressed.
  • the path is configured to provide a chainstay lengthening effect only at those points where this is needed to counterbalance the pedal inputs of the rider; at those points in the wheel travel path where there is a chainstay lengthening effect, the chain tension which results from the pedal inputs exerts a downward force on the rear wheel, preventing unwanted compression of the suspension.
  • US 5452910 (A) details a suspension assembly that is formed of an essentially horizontal swing arm which is pivotally attached at one end to the underside of a bicycle frame by a pair of short links and which carries the rear wheel at an opposite end.
  • the geometry of the suspension assembly is designed to produce a substantially straight line trajectory of the rear wheel in an upward and rearward direction at an angle that is preferably 20 DEG -30 DEG with respect to a vertical line through the wheel axis of rotation to increase traction, making the acceleration forces apply an upward vertical force component to the frame, and a downward component to the frame under braking, independent of wheel position, that reduces rear frame lift (pitch).
  • the suspension geometry is also designed so that the maximum vertical height movement of the pedal crank axis of rotation can be kept to
  • the suspension is designed to attach to a standard frame leaving room for mounting of the derailleur between the frame and the rear wheel.
  • the swing arm assembly is provided with a tubular derailleur mount and an upper tube to which the rear wheel brake assembly can be mounted.
  • US 6203042 (B1 ) discloses a bicycle rear suspension system providing rearward relative motion of the rear axle includes a chain stay, seat stay, chain stay link, seat stay link and shock absorber, with those components being assembled to a main front frame.
  • the frame includes a head tube for supporting a front steering fork, a seat tube for supporting a seat, and a bottom bracket for supporting a pedal crank and chain drive mechanism, the seat tube and bottom bracket being supported so that there is a vertical space between them.
  • the components of the rear suspension system are assembled to the frame within the space between the seat
  • the chain stay link is pivotally attached to the frame so that, upon upward movement of the chain stay, the chain stay link pivots to cause the chain stay and thus the rear axle supported thereon to move slightly rearwardly relative to the frame.
  • a rear suspension unit for after market use in folding bikes, comprising of a rear wheel mounting member (dropout) 1 , a chassis member 2, an upper linkage 3, a seat tube/bottom bracket member 5, a lower linkage 6, lower fixed bracket 8, a downtube member 9, a strengthening bar 10 and a strengthening bar 1 1 where the folding bike pivots and compactly locks onto the said suspension unit using the pivoting linkage system formed through the rear wheel mounting member pivotally connecting to a chassis member through the upper and lower linkage.
  • Another object of this invention is to provide a rear suspension unit that is easily integrable with the folding bike.
  • Yet another object of this invention is to provide a rear suspension unit that is adaptable to be used in a variety of bicycle frames including molded fiber reinforced plastic frame or a metal frame, such as the welded and heat treated aluminum type of frame or metal frame made of steel, aluminum or titanium, or a combination of materials.
  • Figure 1 is a schematic diagram of the preferred embodiment of the Rear Suspension Unit and demonstrates the suspension system for a folding bicycle comprising a rear wheel mounting member (dropout) 1 , a chassis member 2, an upper linkage 3, a seat tube/bottom bracket member 5, a lower linkage 6, lower fixed bracket 8, a downtube member 9, a strengthening bar 10 and a strengthening bar 1 1.
  • b I AILbU Utb I r I IUN Utb I r I IUN
  • the present invention comprising of an aftermarket rear suspension unit is designed for use in folding bikes.
  • the rear wheel mounting member (dropout) 1 is fixed to the chassis member 2.
  • An upper linkage 3 is pivotally connected 4 to the chassis member 2 and seat tube/bottom bracket member 5.
  • a lower linkage 6 is pivotally connected 7 to the chassis member 2 and downtube/bottom bracket member 5. This entire structure constitutes an effective pivoting linkage system.
  • the lower bracket 8 is fixed to seat tube/bottom bracket member 5 and downtube member 9.
  • a strengthening bar 10 is fixed to seat tube/bottom bracket 5 and downtube member 9.
  • a strengthening bar 1 1 is fixed to the wide V of chassis member 2.
  • a shock absorber is fitted to upper linkage 3 and the lower fixed bracket 8.
  • the rear suspension unit in designed in such a way that it will have fixing to allow V type brakes and or Disc type brakes.
  • the present rear suspension unit thus consists a pivoting linkage system formed through the rear wheel mounting member pivotaliy connecting to a chassis member through the upper and lower linkage.
  • the front part of the folding bike is fixed onto the rear suspension unit.
  • the folding bike then pivots and locks onto the suspension unit using the original design of the folding bike.
  • the above pivoting linkage system thus works to form a fully working rear suspension unit for a folding bike.
  • the rear suspension is aligned within a natural niche in the folding bike such that even if the bike is adjusted to fold, the rear suspension does not protrude outward or create a cumbersome structure, but fits compactly into the space in the bike frame.
  • the invention thus does not increase the size after folding and improves the smoothness in riding.
  • the present invention is designed to be a complete after market rear suspension unit for a folding bike.
  • the unit can be fitted to any folding bike which does not have rear suspension at the time of purchase or at any time after the purchase.
  • the complete after market rear suspension for a folding bike can be fitted to any folding bike which does not have rear suspension at the time of purchase or at any time after the purchase.
  • the folding bike has been designed to give a quality comfortable superior ride than one gets with the ordinary non-suspension version of any folding bike.
  • the rear suspension unit of the present invention can provide varying degrees of spring rate in the folding bike as may be desirable for normal riding of the folding bicycle on the road, an off-road climb which requires more compliant springing with greater suspension travel to cope with the rougher terrain and a rough descent which requires long travel suspension. Consequently, the benefits of the rear wheel suspension unit in the folding bike can be optimised for the different riding conditions encountered by the user of the folding bike so that the user is not discouraged by the prospect of inconvenience and delay. While there has been shown and described what is considered to be preferred embodiments of the invention, it will, of course, be understood

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)

Abstract

L'invention porte sur une unité de suspension de roue arrière pour vélo pliable comprenant un élément de montage de roue arrière 1 relié de manière pivotante à un élément de châssis 2 et à un élément de tube de selle/jeu de pédalier 5, par l'intermédiaire de la tringlerie supérieure 3 et inférieure 6, permettant ainsi de former un système de tringlerie pivotant, et un amortisseur de choc est adapté à la tringlerie supérieure 3 et au braquet fixe inférieur 8 pour former une unité de suspension arrière fonctionnant complètement. En outre, l'unité est conçue pour être vendue en tant que suspension arrière après fabrication pour vélo pliable, qui peut être ajustée au moment de l'achat ou à n'importe quel moment après l'achat.
PCT/IB2010/055065 2010-11-08 2010-11-08 Unité de suspension arrière pour une utilisation après fabrication dans des vélos pliables WO2012063098A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1018811.8 2010-11-08
GB1018811.8A GB2475394B (en) 2009-11-09 2010-11-08 Rear suspension unit for after marker use in folding bikes

Publications (1)

Publication Number Publication Date
WO2012063098A1 true WO2012063098A1 (fr) 2012-05-18

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ID=43629298

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/055065 WO2012063098A1 (fr) 2010-11-08 2010-11-08 Unité de suspension arrière pour une utilisation après fabrication dans des vélos pliables

Country Status (1)

Country Link
WO (1) WO2012063098A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10293881B2 (en) 2004-09-15 2019-05-21 Yeti Cycling, Llc Rear suspension system for a bicycle
US10343742B2 (en) 2010-08-20 2019-07-09 Yeti Cycling, Llc Link suspension system
US10766563B2 (en) 2013-01-16 2020-09-08 Yeti Cyclying, Llc Rail suspension with integral shock and dampening mechanism
US10822048B2 (en) 2010-08-20 2020-11-03 Yeti Cycling, Llc Reciprocating rail movement suspension system
US10926830B2 (en) 2017-07-07 2021-02-23 Yeti Cycling, Llc Vehicle suspension linkage
US11173983B2 (en) 2017-03-17 2021-11-16 Yeti Cycling, Llc Vehicle suspension linkage
US12077241B2 (en) 2019-02-01 2024-09-03 Yeti Cycling, Llc Multi-body vehicle suspension linkage

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789174A (en) 1987-04-27 1988-12-06 Mert Lawwill Suspension bicycle
US5240269A (en) 1992-01-16 1993-08-31 Miner Enterprises, Inc. Bike suspension
DE4400500A1 (de) * 1994-01-11 1995-07-13 Dietrich Gerhard Ellsaeser Fahrradrahmen mit zur Transportmaßverkleinerung klappbarem Hinterbau
US5452910A (en) 1994-09-09 1995-09-26 Rockshox, Inc. Rear wheel suspension for a bicycle and bicycle equipped therewith
DE29513074U1 (de) * 1995-08-16 1995-11-30 Kapp, Richard, 79286 Glottertal Hinterradfederung für Fahrräder zum Nachrüsten
JP2000302078A (ja) * 1999-04-16 2000-10-31 Tadashi Arai 緩衝装置付き折りたたみ自転車フレーム
US6203042B1 (en) 1998-02-20 2001-03-20 Trek Bicycle Corporation Bicycle rear suspension system providing relative rearward motion of rear axle
US6206397B1 (en) 1995-01-25 2001-03-27 James B. Klassen Bicycle wheel travel path for selectively applying chainstay lengthening effect and apparatus for providing same
GB2360497A (en) 2000-03-22 2001-09-26 Atb Sales Ltd Bicycle frame and rear suspension assembly
GB2378161A (en) 2001-08-01 2003-02-05 Far Great Plastics Ind Co Ltd Folding structure for a bicycle
US20050253357A1 (en) * 2005-08-18 2005-11-17 Owen Chang Bicycle with suspension
GB2417468A (en) 2004-07-27 2006-03-01 Atb Sales Ltd Bicycle rear suspension
US20060061059A1 (en) * 2004-07-10 2006-03-23 Cycles Lapierre Rear suspension of a two-wheel vehicle or the like
US20070069499A1 (en) * 2005-09-26 2007-03-29 Wang-Hsing Lin Foldable bicycle
US20080061528A1 (en) * 2006-07-16 2008-03-13 Yaniv Musabi Foldable bicycle frame
EP1990266A1 (fr) * 2007-05-11 2008-11-12 Giant Manufacturing Co., Ltd Bicyclette avec amortisseur
GB2454021A (en) 2007-10-27 2009-04-29 Philip Patrick Mcgrath Bicycle with rear suspension system
US20100225089A1 (en) * 2009-03-09 2010-09-09 Specialized Bicycle Components, Inc. Bicycle frame with articulating linkage mounting arrangement

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789174A (en) 1987-04-27 1988-12-06 Mert Lawwill Suspension bicycle
US5240269A (en) 1992-01-16 1993-08-31 Miner Enterprises, Inc. Bike suspension
DE4400500A1 (de) * 1994-01-11 1995-07-13 Dietrich Gerhard Ellsaeser Fahrradrahmen mit zur Transportmaßverkleinerung klappbarem Hinterbau
US5452910A (en) 1994-09-09 1995-09-26 Rockshox, Inc. Rear wheel suspension for a bicycle and bicycle equipped therewith
US6206397B1 (en) 1995-01-25 2001-03-27 James B. Klassen Bicycle wheel travel path for selectively applying chainstay lengthening effect and apparatus for providing same
DE29513074U1 (de) * 1995-08-16 1995-11-30 Kapp, Richard, 79286 Glottertal Hinterradfederung für Fahrräder zum Nachrüsten
US6203042B1 (en) 1998-02-20 2001-03-20 Trek Bicycle Corporation Bicycle rear suspension system providing relative rearward motion of rear axle
JP2000302078A (ja) * 1999-04-16 2000-10-31 Tadashi Arai 緩衝装置付き折りたたみ自転車フレーム
GB2360497A (en) 2000-03-22 2001-09-26 Atb Sales Ltd Bicycle frame and rear suspension assembly
GB2378161A (en) 2001-08-01 2003-02-05 Far Great Plastics Ind Co Ltd Folding structure for a bicycle
US20060061059A1 (en) * 2004-07-10 2006-03-23 Cycles Lapierre Rear suspension of a two-wheel vehicle or the like
GB2417468A (en) 2004-07-27 2006-03-01 Atb Sales Ltd Bicycle rear suspension
US20050253357A1 (en) * 2005-08-18 2005-11-17 Owen Chang Bicycle with suspension
US20070069499A1 (en) * 2005-09-26 2007-03-29 Wang-Hsing Lin Foldable bicycle
US20080061528A1 (en) * 2006-07-16 2008-03-13 Yaniv Musabi Foldable bicycle frame
EP1990266A1 (fr) * 2007-05-11 2008-11-12 Giant Manufacturing Co., Ltd Bicyclette avec amortisseur
GB2454021A (en) 2007-10-27 2009-04-29 Philip Patrick Mcgrath Bicycle with rear suspension system
US20100225089A1 (en) * 2009-03-09 2010-09-09 Specialized Bicycle Components, Inc. Bicycle frame with articulating linkage mounting arrangement

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10293881B2 (en) 2004-09-15 2019-05-21 Yeti Cycling, Llc Rear suspension system for a bicycle
US10343742B2 (en) 2010-08-20 2019-07-09 Yeti Cycling, Llc Link suspension system
US10822048B2 (en) 2010-08-20 2020-11-03 Yeti Cycling, Llc Reciprocating rail movement suspension system
US11485447B2 (en) 2010-08-20 2022-11-01 Yeti Cycling, Llc Reciprocating rail movement suspension system
US12077243B2 (en) 2010-08-20 2024-09-03 Yeti Cycling, Llc Reciprocating rail movement suspension system
US10766563B2 (en) 2013-01-16 2020-09-08 Yeti Cyclying, Llc Rail suspension with integral shock and dampening mechanism
US11173983B2 (en) 2017-03-17 2021-11-16 Yeti Cycling, Llc Vehicle suspension linkage
US10926830B2 (en) 2017-07-07 2021-02-23 Yeti Cycling, Llc Vehicle suspension linkage
USD1023842S1 (en) 2017-07-07 2024-04-23 Yeti Cycling, Llc Shock extension
US12077241B2 (en) 2019-02-01 2024-09-03 Yeti Cycling, Llc Multi-body vehicle suspension linkage

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