Patent ID: 8251391
Filing Date: 2012-08-28
Classification: A61G,B60B,Y10T

Abstract:
1. Removable wheel support device for a wheelchair having at least one front wheel, comprising a bearing assembly having a fixed part secured to a frame part of a seat and a rotative part with a stem integral with a fork holding said wheel, wherein the fixed part comprises a pair of guiding bearing elements coaxially mounted in a housing and a locking ring with an axially directed excentrical bore, said locking ring being of a circular cylindrical shape, being lodged in a free space in said housing between said bearing elements and being laterally movable relative to said housing under the action of a lateral driving member, said stem being arranged for axially engaging said bearing elements and said locking ring, and having a shoulder with a circular edge which abuts an excentric rim of said bore in said locking ring when said locking ring is in a locking position within said bearing assembly, wherein the locking ring is guided for diametral movements by a radial pin engaging said ring and traversing a radial pin bore in said housing, said driving member having a side tip secured to said locking ring, and traversing a hole in said housing diametrically opposed to the pin bore.