Abrégé

11Rx222RxRX22) from the difference computed in routine 206.

Classes IPC  ?

• B62J 45/411 - Capteurs de couple
• B62M 6/45 - Dispositifs de commande ou d'actionnement s'y rapportant
• B62M 6/50 - Dispositifs de commande ou d'actionnement s'y rapportant caractérisés par des détecteurs ou des capteurs, ou leur disposition
• B62M 6/55 - Cycles propulsés par le conducteur avec moteur électrique auxiliaire motopropulsés au niveau de parties du vilebrequin

Abrégé

Force measurement sensor which comprises a peripheral portion (34), a central portion (35) and a first frame (33) connecting an upper section (342) of the peripheral portion (34) to an upper portion (352) of the central portion (35); said central portion (35) comprising a seat (351) intended to receive the outer ring of a bearing in order to mount a shaft in rotation about an axis Z, said frame (33) comprising a core (333) enclosed by two arms (331, 332) which are substantially parallel to one another, such that said upper section (342) of the peripheral portion (34), said upper portion (352) of the central portion (35) and the two arms (331, 332) form a parallelogram.

Classes IPC  ?

• B62J 45/411 - Capteurs de couple
• B62M 3/00 - Structure des manivelles actionnées à la main ou au pied
• B62M 6/50 - Dispositifs de commande ou d'actionnement s'y rapportant caractérisés par des détecteurs ou des capteurs, ou leur disposition
• G01L 1/22 - Mesure des forces ou des contraintes, en général en mesurant les variations de la résistance ohmique des matériaux solides ou des fluides conducteurs de l'électricitéMesure des forces ou des contraintes, en général en faisant usage des cellules électrocinétiques, c.-à-d. des cellules contenant un liquide, dans lesquelles un potentiel électrique est produit ou modifié par l'application d'une contrainte en utilisant des jauges de contrainte à résistance
• G01L 3/14 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple est autre qu'un arbre élastique en torsion

Abrégé

Crankset assembly intended to be mounted on a bicycle, said assembly having at least one right-hand bearing (28) for mounting a crankset shaft (4) and a force sensor (3) positioned around the outer ring of said bearing (28); said force sensor comprising a peripheral portion (34), a central portion (35) and a top frame (33) connecting a top section (342) of the peripheral portion (34) to a top portion (352) of the central portion (35); said frame (33) being positioned at a diameter oriented along an axis (Y'), characterized in that the axis (Y') makes an angle (φ) of between 10° and 30° with the vertical axis (Y) and in that the top frame (33) is positioned behind the vertical axis (Y).

Classes IPC  ?

• B62M 3/00 - Structure des manivelles actionnées à la main ou au pied
• B62M 6/50 - Dispositifs de commande ou d'actionnement s'y rapportant caractérisés par des détecteurs ou des capteurs, ou leur disposition

Abrégé

The invention relates to a mechanical reduction gear (5) comprising an outer ring (55) having a pitch circle diameter D55, at least one planetary gear (51, 52, 53, 51',52') having a pitch circle diameter D50 for rotating inside the ring with an excentricity "e" equal to half of the difference between diameter D55 and diameter D50; e = ½(D55 - D50); wherein said at least one planetary gear (51, 52, 53, 51',52') is maintained between the two flanges (573, 574, 573', 574') of a carrier (57); said at least one planetary gear (51, 52, 53, 51',52') has at least three circular openings (502) of diameter D502, each of them being traversed by a small shaft (575) of diameter D575 which is substantially equal to the diameter of the circular opening (502), D502, minus the double of the excentricity "e", D575 = D502-(2 x e); characterized in that the at least three small shafts (575) are mounted in a rotatable manner with respect to the carrier (57) with the aid of small bearings (576, 577) housed in said flanges (573, 574, 573', 574') of the carrier (57).

Classes IPC  ?

• B62M 6/55 - Cycles propulsés par le conducteur avec moteur électrique auxiliaire motopropulsés au niveau de parties du vilebrequin
• B62M 11/14 - Transmissions caractérisées par l'engrènement de roues dentées ou le contact de roues à friction de rapport variable avec engrenages planétaires
• F16H 1/32 - Transmissions à engrenages pour transmettre un mouvement rotatif avec engrenages à mouvement orbital dans lesquels l'axe central de la transmission est situé à l'intérieur de la périphérie d'un engrenage orbital

Abrégé

Disclosed is a mechanical reduction gear (5) comprising a rotor (32), an outer ring gear (55) of pitch diameter D55, a planet carrier (57), which comprises at least one planet gear (51, 52, 53, 51', 52') of pitch diameter D50 designed to rotate inside the ring gear with an eccentricity of value "e" equal to half the difference between the diameter D55 and the diameter D50; e = ½(D55 - D50); the at least one planet gear being mounted so as to be able to rotate on the rotor (32) by means of an eccentric (315, 316, 317) comprising at least one cam (3101, 3102, 3171, 3172); the cam comprising an inner surface (31012, 31022, 31712, 31722) that is cylindrical of diameter D31 and an outer surface (31013, 31023, 31713, 31723) that is cylindrical of diameter D504, the diameter D504 being equal to the sum of the diameter D30 and double the eccentricity "e"; D504 = D31 + 2e.

Classes IPC  ?

• B62M 6/55 - Cycles propulsés par le conducteur avec moteur électrique auxiliaire motopropulsés au niveau de parties du vilebrequin
• B62M 11/14 - Transmissions caractérisées par l'engrènement de roues dentées ou le contact de roues à friction de rapport variable avec engrenages planétaires
• F16H 1/32 - Transmissions à engrenages pour transmettre un mouvement rotatif avec engrenages à mouvement orbital dans lesquels l'axe central de la transmission est situé à l'intérieur de la périphérie d'un engrenage orbital

Abrégé

Assist device for a bicycle comprising a motor (3), a step-down gear (5), a free wheel (6) and a shaft (4) which rotates as one with a right crank (16, 161) and a left crank (16'); the motor (3) transmitting an assist torque to the shaft (4) by means of the free wheel (6); the device being designed to be received inside a pedal assembly casing (2); the shaft being rotatably mounted relative to the casing by means of two ball bearings (224, 234); the free wheel (6) consisting of a plurality of pieces (63, 61, 65) which are placed between the motor (3) and the shaft (4); the device further comprising a torque transmission ring (44, 44', 44", 44'") which allows one of the pieces of the free wheel (61, 65) to be secured to the shaft (4) or to one of the cranks (16, 16', 161); the transmission ring (44, 44', 44") being at least partially placed under one of the two ball bearings (224, 234). The torque transmission ring (44, 44', 44", 44'") produces a first mechanical connection with one of the pieces of the free wheel and a second mechanical connection with the shaft (4) or one of the cranks (16, 16', 161); at least one of these two mechanical connections can be released so as to withdraw the shaft (4). The transmission ring can be placed near the right crank (16, 161) or near the left crank (16'). The releasable mechanical connection may be the one which is located between the ring (44, 44') and one of the pieces (65) of the free wheel or the one which is located between the ring (44, 44') and the shaft (4) or the left crank (16').

Classes IPC  ?

• B62M 6/55 - Cycles propulsés par le conducteur avec moteur électrique auxiliaire motopropulsés au niveau de parties du vilebrequin
• B62M 11/14 - Transmissions caractérisées par l'engrènement de roues dentées ou le contact de roues à friction de rapport variable avec engrenages planétaires

Abrégé

Electric assist device for a bicycle comprising a shaft (4) coupled in rotation with a pair of cranks (16) and being able to be rotated in a positive direction by an electric motor (3), characterized in that a connection mechanism (8) is placed between the motor (3) and the shaft (4), which connection mechanism has at least three distinct states: State 1, termed assist state, in which the motor transmits a torque to the shaft (4) via a drive part which rotates at the same speed as the shaft (4); State 2, termed freewheel state, in which the rotation of the shaft (4) in the positive direction is greater than that of the drive part (56); State 3, termed disconnection state, in which a rotation in the positive direction or in the negative direction of the shaft (4) cannot cause the motor (3) to rotate. The connection mechanism can consist of a disengageable freewheel comprising means maintaining the freewheel blocking parts in a disengaged position, or it can consist of the combination of a conventional freewheel and of a clutch.

Classes IPC  ?

• F16D 41/30 - Roues libres ou embrayages à roue libre spécialement adaptés aux bicyclettes avec cliquet articulé coopérant avec des dents, des tenons ou des éléments analogues
• B62M 6/55 - Cycles propulsés par le conducteur avec moteur électrique auxiliaire motopropulsés au niveau de parties du vilebrequin
• F16H 15/20 - Transmissions donnant une gamme continue de rapports de vitesses dans lesquelles un organe A monté sur un arbre et de diamètre utile uniforme peut travailler avec différentes parties d'un organe B et où l'organe B a une surface de friction conique à l'extérieur travaillant avec la jante extérieure de l'organe A, laquelle est perpendiculaire ou sensiblement perpendiculaire à la surface de frottement de l'organe B

Abrégé

A system for storing and recovering energy characterised in that it comprises: - a shaft (6); - a wheel rim (3) or an element kinematically linked to the rim; - a chain for transmitting torque from a motor element (pedal/electric motor) to said rim (3) in such a way as to rotate the rim or the element that is kinematically linked thereto relative to said shaft (6); - an epicyclic gear train comprising first, second and third input/output parts; - a mechanism (5, 7) for the selective coupling of said second input/output part; and wherein the first input/output part is constituted by said rim (3) or by said element kinematically linked to the rim, and the third input/output part is an flywheel (1) that is rotatably mobile relative to the shaft (6) and capable of storing kinetic energy and then transferring it to the rim (3) or to said element that is kinematically linked thereto. The epicyclic gear train supports: - an energy storage configuration in which the second input/output part is immobilized relative to the shaft (6); and - an energy recovery configuration in which the second input/output part is immobilized relative to the chain for transmitting torque.

Classes IPC  ?

• B62M 1/10 - Propulsion par le conducteur des véhicules à roues comportant des dispositifs permettant l'accumulation ou la restitution mécaniques de l'énergie, p. ex. disposition de volants d'inertie

Produits et services

Clothing and footwear for cycling.