The rotation transmission which possesses the flexible shaft inside the sheath which consists of with the shoulder formation territory and the inside tube

摘要

A device for the transmission of a rotation motion (1) comprising a flexible shaft and a sheath (3), said sheath (3) comprising a core (4), the core (4) comprising at least one shoulder-forming area (6), said area (6) comprising at least three portions, two external portions (7, 8) and a central portion (9), said portions having axes substantially parallel to that of the core (4) and having diameters substantially equal to that of the core (4), the external portions (7, 8) being substantially coaxial and having their axes shifted with respect to the axis of the central portion (9) and of the core (4), said device comprises an inner tube (2) positioned inside the core (4) the tube (2) being deformed in a similar way as the core (4) in the shoulder-forming area (6).