To provide a device to drive a body along a specific course.

A body 5 is connected to a traction means provided almost parallel to a specific course by a cooperative pair of connecting members, and it is driven along the specific course on a correspondent rail. A traction means is an endless traction tape 1 guided through a bending roller 2, and it functions also as the first connecting member. The traction tape 1 is variable elastically in the longitudinal direction, and it cooperates with the second connecting member of the driven body 5. The second connecting member is a groove 6 extended parallel to the specific course and the traction tape 1 can be set to the groove 6. In order to connect the body 5 to the traction tape 1, the traction tape 1 is pressed in the groove 6 and the vertical slippage of the specific course can be prevented by adequate guide means (2 and U). The driven body 5 can be applied as a conveyer means.