Montanari, Daniele

The electric actuation member comprises a body (2) intended to be mounted on a bicycle and to be connected to an electric device, a switch (12) housed in the body (2) and facing outwards thereof, operable by pressure in a direction of actuation (X) towards the body (2). An elastic sheath (6) envelops the body (2) of the actuation member and a pusher (20) is provided on the sheath (6) at the switch (12). The pusher (20) is rigid along the direction of actuation (X), so as to be able to transmit the click of the switch when it is operated, so that it is perceived by both the hearing and the touch of the cyclist.

The invention relates to a toothed wheel (10) for a rocker arm of a bicycle gearshift, comprising a rotation axis (X) and a toothing (20) comprising a plurality of first teeth (22) and a plurality of second teeth (24) circumferentially alternated with the first teeth (22) and arranged so that each first tooth (22) is spaced apart from an adjacent second tooth (24) by a toothing pitch corresponding to the pitch of a chain (70) intended to be engaged with the toothed wheel (10). The first teeth (22) are axially wider than the second teeth (24) and are configured to engage with respective outer links (72) of the chain (70). The second teeth (24) are configured to engage with respective inner links (74) of the chain (70). The first teeth (22) have a top surface (23) that, in a radial direction, has a distance (D) from the rotation axis (X) greater than the radius (r_R) of a reference circumference (R) of the toothed wheel (10), i.e. the circumference on which, in a operating condition of correct engagement with the chain (70), the contact points between first teeth (22) and outer links (72) of the chain (70) and the contact points between second teeth (24) and inner links (74) of the chain (70) lie. The aforementioned distance (D) is such that, starting from an condition of incorrect engagement in which a predetermined first tooth (22) is engaged by an inner link (72) of the chain (70), the toothed wheel (10) reaches the operating condition engagement with the chain (70) after a rotation in the counter-clockwise direction of said predetermined first tooth (22) with respect to said rotation axis (X) by an angle (A) less than 360°.

Bicycle electric device (1) comprising a first electric element (10) and a second electric element (12), removably connected to each other, each of which comprises a plurality of N conductive terminals (14, 16), wherein, when the first (10) and the second electric element (12) are connected, each conductive terminal (14) of the first electric element (10) is in electric contact with a corresponding conductive terminal (16) of the second electric element (12), forming a plurality of N conductive junctions between the first electric element (10) and the second electric element (14), and wherein at least one conductive junction is used to transfer power, the electric bicycle device (1) being characterized in that it comprises an insulating structure (44) interposed between and in direct contact with the first electric element (10) and the second electric element (12), when connected, the insulating structure (44) comprising a plurality of at least N-1 deformable insulating members (46), in which each deformable insulating member (46) is located around a single conductive junction.