WO2000075005A1 - Boite de pedalier a microderailleur incorpore pour bicyclettes - Google Patents

Boite de pedalier a microderailleur incorpore pour bicyclettes Download PDF

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Publication number
WO2000075005A1
WO2000075005A1 PCT/ES2000/000196 ES0000196W WO0075005A1 WO 2000075005 A1 WO2000075005 A1 WO 2000075005A1 ES 0000196 W ES0000196 W ES 0000196W WO 0075005 A1 WO0075005 A1 WO 0075005A1
Authority
WO
WIPO (PCT)
Prior art keywords
bicycles
rear axle
sprockets
pedalier
box
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/ES2000/000196
Other languages
English (en)
Spanish (es)
Inventor
José LLIBRER PORCAR
Amparo Laguarda Martinez
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2000075005A1 publication Critical patent/WO2000075005A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/083—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with radially acting and axially controlled clutching members, e.g. sliding keys
    • 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
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/06—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with spur gear wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/24—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using chains or toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing

Definitions

  • the present invention refers to a bottom bracket with built-in microcane for bicycles that basically incorporates in its interior an anterior axis where the pedals are connected and a rear axle provided with a group of sprockets that are linked, directly or through intermediate chains, with other facing sprockets coupled to the pedal axle.
  • an outer plate On the axis of the pedals, an outer plate is coupled, in which a conventional chain is connected, which will transmit the traction to the rear wheel through a single sprocket of said wheel.
  • the rear axle includes at least one other end pinion linked to another pair of the anterior axis that is integral with the outer plate.
  • the changes of gears for bicycles are normally composed of two similar devices, one before for the plates and another one for the sprockets of the driving wheel, integral with the same with the rear axle.
  • 9502063 consists of a bottom bracket that includes a front axle provided with a group of pinions that transmit its movement to a rear axle, with interposition of an intermediate pinion, connecting the pedals at the ends of the anterior axis.
  • the box incorporates a mechanism for transmitting the rotary movement of the rear axle to a conventional plate coupled externally and freely to the axis of the pedals.
  • This new bottom bracket although it solves the problems mentioned above, has the disadvantage that its performance is not all the good that would be expected, mainly because part of the user's power and energy is lost in the friction between the different pinions and gears of the bottom bracket. DESCRIPTION OF THE INVENTION
  • the invention proposes a new bottom bracket with built-in microchange for bicycles that comprises, in principle, a housing fixed on the bottom of the frame of a bicycle in correspondence with the axis of the pedals that fits into the housing.
  • a housing fixed on the bottom of the frame of a bicycle in correspondence with the axis of the pedals that fits into the housing.
  • On the previous axis there is a conventional plate where a chain is connected that will transmit its movement to a single pinion attached to the rear wheel of the bicycle.
  • the axis of the pedals includes a group of sprockets that rotate in solidarity with the aforementioned axle, at the same time that they are linked, either directly or through short intermediate chains, with two sprockets coupled in principle freely in a rear structure tree tubular.
  • the rear axle includes at least one other end pinion that rotates in solidarity with said tree, at the same time as it is associated with a crazy pinion coupled on the anterior axis and which is in solidarity with the conventional plate.
  • a crazy pinion coupled on the anterior axis and which is in solidarity with the conventional plate.
  • the rear tree with a tubular structure includes inside it an advantageous anchoring mechanism to support the tree with one of the gears belonging to the group of pinions coupled to said tree.
  • This has a longitudinal groove through which a latch or retractable lug belonging to the anchoring mechanism is guided, said latch engaging with the corresponding gear.
  • the anchoring mechanism is governed by a cable that is connected to a single conventional or similar joystick.
  • Figure 1. Represents a sectioned plan view of the bottom bracket housing with microchange incorporated for bicycles, object of the invention.
  • Figure 2.- represents a side view of the bottom bracket.
  • Figure 3. Represents a sectional elevation view of a locking or anchoring mechanism of pinions that are part of the invention.
  • Figure 4. Represents a sectioned view of the locking mechanism referred to in the previous figure.
  • Figure 5. Represents a view of the box bottom bracket where a second embodiment is shown.
  • the bottom bracket with built-in microchange for bicycles is constituted from a housing 1 fixed at the bottom of the frame of a bicycle in correspondence with an axle previous 2, at whose outer ends are connected pedals not shown in the figures.
  • a conventional plate 3 is coupled where an elongated chain linked to a single sprocket of the rear wheel of the bicycle will be connected to transmit the rotating movement to said rear wheel or driving wheel of the bicycle.
  • the front axle 2 of the pedals includes a group of front sprockets 4 that rotate in solidarity at all times with the axis 2, at the same time that they are linked, through short intermediate chains 5, with another group of rear sprockets 6 freely coupled in a rear axle 7 of tubular structure, which is coupled to the housing 1 with interposition of some bearings 8.
  • the anterior axis 2 is also coupled to the housing 1 with interposition of other bearings 9.
  • the rear axle 7 includes at least one cogwheel 10 that rotates in solidarity with said shaft 7, at the same time as it is connected, by another short chain 11, with a crazy pinion 12 coupled on the front axle 2.
  • This crazy pinion 12 is in solidarity with the conventional plate 3 by means of a bushing or tubular body 13.
  • Inside the tubular shaft 7 there is an anchoring mechanism 14 designed to independently support each of the sprockets of the rear sprocket group 6 with the shaft 7 itself in order to achieve the different output speeds of the conventional dish 3.
  • the anchoring mechanism 14 comprises a slide 15 provided with a cylindrical cavity 16 where a small piston 17 is fitted with interposition of a spring
  • Each of the gears of the rear pinion group 6 is affected by at least one internal recess or recess 21 established in correspondence with the diameter inside the said pinions 6, such that axially placing the slide 15 in a place along the shaft 7, the nail 19 will be introduced into one of the internal recesses 21 of a gear of the rear pinion group 6, whereby, the shaft 7 will be dragged by the corresponding pinion 6 in its rotational movement that will be transmitted to the conventional plate 3 through the gearwheel 10 of the rear axle 7 and the idler 12 in solidarity with the p can 3.
  • said outer part comprises two inclined planes 22 gently curved and facing each other.
  • the recesses 21 of the pinions 6 of the rear axle 7 are also affected by a curved-concave section 23 which facilitates the axial displacement of the coupling mechanism 14 and therefore, the change of speeds of the bottom bracket of the invention.
  • the anchoring mechanism 14 is governed by a cable 24 that is connected at one end to the slide 15, while at the end opposite is connected with a conventional joystick not shown in the figures.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Transmission Devices (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

L'invention concerne une boîte de pédalier fixée dans la partie inférieure du châssis d'une bicyclette, et comprenant un axe avant (2) de pédales, ainsi qu'un arbre arrière (7) pourvu d'une groupe de pignons fous (6) reliés à d'autres pignons (4) accouplés à l'axe avant (2), directement ou au moyen de chaînes (5). L'arbre arrière (7) comprend une structure tubulaire et incorpore un mécanisme d'ancrage destiné à relier de manière indépendante un des pignons fous (6) à l'arbre arrière (7). Par ailleurs, l'arbre arrière (7) incorpore une roue dentée transmettant son mouvement à un pignon fou relié à un plateau conventionnel (3) transmettant son mouvement à une roue arrière de la bicyclette. Cette boîte de pédalier présente une structure plus simple que d'autres du même type, et permet d'obtenir un rendement supérieur dans la transmission.
PCT/ES2000/000196 1999-06-04 2000-06-01 Boite de pedalier a microderailleur incorpore pour bicyclettes Ceased WO2000075005A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9901233 1999-06-04
ESP9901233 1999-06-04

Publications (1)

Publication Number Publication Date
WO2000075005A1 true WO2000075005A1 (fr) 2000-12-14

Family

ID=8308709

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2000/000196 Ceased WO2000075005A1 (fr) 1999-06-04 2000-06-01 Boite de pedalier a microderailleur incorpore pour bicyclettes

Country Status (1)

Country Link
WO (1) WO2000075005A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2221512A1 (es) * 2002-01-18 2004-12-16 Norberto Santin Piedrafita Grupo reductor-acelerador para bicicletas.
NL2002788C2 (nl) * 2009-04-23 2010-10-26 Teunis Karel Van Ee Transmissie.
BE1018925A3 (nl) * 2009-04-24 2011-11-08 Ee Teunis Karel Van Transmissie.
WO2014158120A1 (fr) * 2013-03-28 2014-10-02 Donchenko Iurii Viktorovych Transmission mécanique à rapports étagés
CN104393214A (zh) * 2014-11-13 2015-03-04 镇江奥美机电设备有限公司 双面多点传动抽油箱
EP3028934A1 (fr) * 2014-12-03 2016-06-08 Robert Bosch GmbH Dispositif d'entrainement pour un vehicule entraine par la force motrice et/ou la force de pedalage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR795941A (fr) * 1934-10-15 1936-03-25 Changement de vitesse pour bicyclettes
DE688932C (de) * 1936-10-09 1940-03-06 Friedrich Weber Wechselgetriebe, insbesondere fuer Fahrraeder
US2505464A (en) * 1943-11-16 1950-04-25 Debuit Louis Bicycle or motorcycle carrying a single steering wheel and transmission gears and connections therefor
US4716777A (en) * 1986-05-08 1988-01-05 Hartmann Dirck T Multiple speed transmission for pedal powered vehicles
ES2002522A6 (es) * 1986-10-08 1988-08-16 Cebriain Mata Juan Sistema de transmision para vehiculos de traccion humana
ES2092628T3 (es) * 1991-07-22 1996-12-01 Perego Pines Gmbh Cambio de marchas mecanico para automoviles de juguete.
WO1999006269A1 (fr) * 1997-07-30 1999-02-11 Cruz Garmendia Altuna Plateau moteur perfectionne a pedales

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR795941A (fr) * 1934-10-15 1936-03-25 Changement de vitesse pour bicyclettes
DE688932C (de) * 1936-10-09 1940-03-06 Friedrich Weber Wechselgetriebe, insbesondere fuer Fahrraeder
US2505464A (en) * 1943-11-16 1950-04-25 Debuit Louis Bicycle or motorcycle carrying a single steering wheel and transmission gears and connections therefor
US4716777A (en) * 1986-05-08 1988-01-05 Hartmann Dirck T Multiple speed transmission for pedal powered vehicles
ES2002522A6 (es) * 1986-10-08 1988-08-16 Cebriain Mata Juan Sistema de transmision para vehiculos de traccion humana
ES2092628T3 (es) * 1991-07-22 1996-12-01 Perego Pines Gmbh Cambio de marchas mecanico para automoviles de juguete.
WO1999006269A1 (fr) * 1997-07-30 1999-02-11 Cruz Garmendia Altuna Plateau moteur perfectionne a pedales

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2221512A1 (es) * 2002-01-18 2004-12-16 Norberto Santin Piedrafita Grupo reductor-acelerador para bicicletas.
ES2221512B1 (es) * 2002-01-18 2005-09-16 Norberto Santin Piedrafita Grupo reductor-acelerador para bicicletas.
NL2002788C2 (nl) * 2009-04-23 2010-10-26 Teunis Karel Van Ee Transmissie.
WO2010123363A1 (fr) * 2009-04-23 2010-10-28 Teunis Karel Van Ee Transmission
BE1018925A3 (nl) * 2009-04-24 2011-11-08 Ee Teunis Karel Van Transmissie.
WO2014158120A1 (fr) * 2013-03-28 2014-10-02 Donchenko Iurii Viktorovych Transmission mécanique à rapports étagés
CN104393214A (zh) * 2014-11-13 2015-03-04 镇江奥美机电设备有限公司 双面多点传动抽油箱
EP3028934A1 (fr) * 2014-12-03 2016-06-08 Robert Bosch GmbH Dispositif d'entrainement pour un vehicule entraine par la force motrice et/ou la force de pedalage

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