B - Operations – Transporting – 62 – M
Patent
B - Operations, Transporting
62
M
B62M 3/04 (2006.01) B62M 1/02 (2006.01) B62M 1/10 (2010.01)
Patent
CA 2307608
A cycle crank comprises at least one chain wheel (1) which is rotatably mounted about a centre axis (2) and two pedal arms (3, 3') each of which is restrictedly rotatably mounted in the chain wheel in its eccentric rotating joint (6, 6'). Two spring devices (8, 8') are each attached in the chain wheel in its eccentric first spring attachment (11, 11'), and pulls the pedal arms towards the centre axis (2). The pedal arms (3, 3') can rotate between an inner position in which they are turned towards the centre axis (2) and an outer position in which they point substantially radially out from the centre axis. An angle (v2) which is formed by a line between the first spring attachment (11, 11') and the centre axis (2) and a line between the centre axis and the rotating joint (6, 6') is between 30~ and 150~.
L'invention se rapporte à un pédalier de bicyclette comportant au moins un plateau (1) qui est monté de manière à tourner autour d'un axe central (2) et deux bras (3, 3') de pédales fixés chacun, de manière à tourner de façon restreinte, sur le plateau au niveau de son articulation rotoïde excentrique (6, 6'). Deux dispositifs à ressorts (8, 8'), qui sont fixés chacun au pédalier au niveau d'un premier point de fixation de ressort (11, 11') excentrique, tirent les bras de pédales en direction de l'axe central (2). Les bras (3, 3') de pédales peuvent tourner et passer d'une position interne dans laquelle ils sont tournés vers l'axe central (2), à une position externe dans laquelle ils pointent sensiblement de manière radiale vers un point hors de l'axe central. L'angle (v¿2?) formé entre, d'une part, une ligne reliant le premier point d'attachement de ressort (11, 11') et l'axe central (2) et d'autre part, une ligne reliant l'axe central et l'articulation rotoïde (6, 6'), est compris entre 30· et 150·.
Haaheim Oyvind
Ridout & Maybee Llp
LandOfFree
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