B - Operations – Transporting – 62 – M
Patent
B - Operations, Transporting
62
M
B62M 1/02 (2006.01)
Patent
CA 2312882
The invention concerns a crankset without dead centre point comprising a single shaft (108), provided with a left-hand crank (11) and a support hub (119) equipped with a lever (20). Said hub is mounted by a ball bearing (28) in a stationary eccentric member (26) supporting a rotary chainwheel holder (15) of a chain transmission. The hub further supports the right-hand crank (13) with prestressed bearings (62, 63). The lever (20) and the crank (13) drive the chainwheel holder by means of two articulated rocker bars (21 and 23). Support means are provided on the crankset fixed tube (2) to prevent the eccentric member (26) from rotating. Said means can comprise a force sensor enabling a measuring appliance to calculate the energy and power transmitted through the crankset. Such a crankset can be used for driving bicycles and other vehicles or machines by muscular effort.
Le pédalier sans point mort comporte un seul arbre (108), équipé de la manivelle gauche (11) et d'un moyeu de support (119) pourvu d'un levier (20). Ce moyeu est monté par un roulement (28) dans un excentrique stationnaire (26) supportant un ports-plateaux rotatif ( 15) d'une transmission à chaîne. Le moyeu supporte en outre la manivelle droite (13) par des paliers précontraints (62, 63). Le levier (20) et la manivelle (13) entraînent le porte-plateaux au moyen de deux biellettes articulées (21 et 23). Des moyens d'appui sont prévus sur le tube fixe de pédalier (2) pour empêcher l'excentrique (26) de tourner. Ces moyens peuvent comporter un capteur de force permettant à un appareil de mesure de calculer l'énergie et la puissance transmises à travers le pédalier. Un tel pédalier est utilisable pour l'entraînement des bicyclettes et d'autres véhicules ou machines par la force musculaire.
Bitz Roland
Gowling Lafleur Henderson Llp
LandOfFree
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