GEAR-SHIFTING DEVICE FOR MEANS OF TRANSPORT

摘要

Described is a gear-shifting device (1) for means of transport comprising a pair of shafts (20-30) each comprising a plurality of transmission units (200) wherein each transmission unit (200) of a shaft (30) is rotated by a respective transmission unit (200) of the other shaft (20) wherein the shaft (30) is an activation shaft.;The activation shaft (30) comprises activation means (40) configured in such a way as to selectively rotate in an integral fashion a transmission unit (200) of the shaft (20) with a transmission unit (200) of the activation shaft (30) by generating a transient difference in speed of rotation between the slowing disk (45) operatively connected to the transmission unit (200) of the shaft (30) and the transmission unit (200) of the shaft (30). The transmission units (200) of the activation shaft (30) rotate freely relative to the activation shaft (30) in a selected configuration of the transmission unit (200).

主权项

1. A gear-shifting device (1) for means of transport comprising:
a pair of shafts (20-30) parallel to and spaced from each other each comprising a plurality of transmission units (200), each transmission unit (200) of a tertiary shaft (30) being driven to rotate by a respective transmission unit (200) of the other shaft (20), the transmission units (200) of the shaft (20) rotating integrally with it; the transmission units (200) of the tertiary shaft (30) being arranged according to a predetermined sequence along an axis (Z) of rotation of the tertiary shaft (30) and each transmission unit (200) of the tertiary shaft (30) being rotatable on itself about the axis (Z); each transmission unit (200) of the tertiary shaft (30) being positioned axially at a respective transmission unit (200) of the shaft (20) and meshing together in such a way as to establish a predetermined transmission ratio between the shaft (20) and the shaft (30); each transmission unit (200) of the tertiary shaft (30) being configurable between a non-selected condition in which it is freely rotatable about the tertiary axis (30) and a selected condition in which it is rotatably integral with the tertiary axis (30); activation means (40) operatively associated with the tertiary shaft (30) and the transmission units (200) of the tertiary shaft (30) for selectively rotating in an integral fashion a transmission unit (200) of the tertiary shaft (30) with the tertiary shaft (30); the activation means (40) comprising a plurality of slowing disks (45) each operatively connected to a respective transmission unit (200) of the tertiary shaft (30); each slowing disk (45) being rotatably mobile relative to the respective transmission unit (200) around the tertiary shaft (30) between a first position and a second position; each slowing disk (45) being configured in such a way as to selectively rotate in an integral fashion the respective transmission unit (200) with the tertiary shaft from the non-selected condition to the selected condition by generating a transient difference in the speed of rotation between the transmission unit (200) selected and the respective slowing disk (45) in such a way as to bring the latter from the first position to the second position; each slowing disk (45) comprising along its perimeter edge (45a) a portion made of at least one deformable material; the device (1) comprising at least one rotary unit (46c) operatively mobile towards a slowing disk (45) for deforming the portion of deformable material in such a way as to generate the transient speed difference.