| 摘要 |
The ball table with crossed movements comprises a horizontal top (6) comprising balls (7) which are free in rotation and project from the two faces of this top (6). The balls (7) are set in rotation in a first and a second direction, in one sense or in the other, by means of an endless belt (4) whose upper side is in contact with the balls (7) and by means of endless chains (8) fastened onto the lateral sides (9) of the top (6) so as to displace the latter relative to the endless belt (4). …<IMAGE>… |
