A connector end piece of a control cable from a vehicle transmission to a ball joint of a part of a gearshift or of a part of the transmission, where the end piece is intended to go over the cable and includes a radial window able to receive, by engagement, a cover having an inner threaded portion, where the cover is movable from a disengaged position to an engaged position in which it engages with a threaded end portion of the cable and locks said cable in position. The end piece comprises an end annular portion, coaxial with the cable, and receiving a security ring, said security ring being movable from an unlocked position to a locked position in which the cover is in disengaged position, the ring holds the cover in the disengaged position and prevents the cover from moving into the engaged position; and when the cover is in engaged position, the ring holds the cover in the engaged position and prevents the cover from moving into the disengaged position.

The transmission (10) comprises a support (40) where an input central shaft (1) is rotatably supported. A central wheel (11) is integral with the central shaft (1) and rotates therewith. The transmission further comprises an output wheel (18) and a rotary unit (100) rotatably supported by the support (40) around a rotation axis (100) to take a plurality of angular positions. Selectable gear pairs (101-109) are rotatably supported on the rotary unit (100). A rotation mechanism of the rotary unit (100) brings the rotary unit (100) into one of said angular position selectively. In each angular position of the rotary unit (100) a selectable gear pair (101-109) transmits motion from the central wheel (11) to the output wheel (18);

A connector end piece of a control cable from a vehicle transmission to a ball joint of a part of a gearshift or of a part of the transmission, where the end piece is intended to go over the cable and includes a radial window able to receive, by engagement, a cover having an inner threaded portion, where the cover is movable from a disengaged position to an engaged position in which it engages with a threaded end portion of the cable and locks said cable in position. The end piece comprises an end annular portion, coaxial with the cable, and receiving a security ring, said security ring being movable from an unlocked position to a locked position in which the cover is in disengaged position, the ring holds the cover in the disengaged position and prevents the cover from moving into the engaged position; and when the cover is in engaged position, the ring holds the cover in the engaged position and prevents the cover from moving into the disengaged position.

A transmission device for a dentate structure includes a corpus portion and an operating member. The corpus portion is adapted to be disposed at a body. The operating member is movably fitted to the corpus portion. The operating member has a dentate portion for actuating the dentate structure while operating in conjunction with the operating member, allowing the body to enable dentate structure transmission. Alternatively, the dentate portion actuates the dentate portion of another operating member while operating in conjunction with the operating member, allowing transmission to occur between the two operating members.

A transmission device for a dentate structure includes a corpus portion and an operating member. The corpus portion is adapted to be disposed at a body. The operating member is movably fitted to the corpus portion. The operating member has a dentate portion for actuating the dentate structure while operating in conjunction with the operating member, allowing the body to enable dentate structure transmission. Alternatively, the dentate portion actuates the dentate portion of another operating member while operating in conjunction with the operating member, allowing transmission to occur between the two operating members.