Mechanical transmission mechanism with rolling means

A mechanical transmission mechanism including an input member, an output member and a transmission medium for transmitting a mechanical input which is received by said input member in order to enable said output member to perform work,

• wherein said input member comprises a driving gear enveloped in a casing with a peripheral channel confined between a partial circumference of said driving gear and an inner face of said casing, said casing having two openings formed on both ends of said peripheral channel and connected respectively and tangentially to a pair of guide channels so as to form a guide path extending from said input member to said output member via said peripheral channel and said pair of guide channels, and wherein said transmission medium is packed in said guide path and is constituted by a plurality of rolling bodies which are disposed alternatingly in juxtaposed lines that extend respectively along said guide path, each of said rolling bodies being in contact with adjacent rolling bodies in neighboring lines, one of said lines of rolling bodies matching said driving gear and enabling said rolling bodies to move rollingly along said guide path to drive said output member when said driving gear is operated.