Abrégé

[Problem] To provide a load sensing transmission which is small, effects velocity switching in a smooth manner, and can perform RPM switching safely without requiring a neutral state, and to provide a winch comprising the load sensing transmission. [Solution] When the rotation of a sun gear (14) is transmitted by way of a pinion shaft (6) and planetary gears (17, 18) are thereby rotated, if the rotation of an internally toothed ring gear (19) positioned around the planetary gears (17, 18) is restricted, rotation that has been decreased by the rotation and revolution of the planetary gears (17, 18) is output from a planetary carrier (16). If the planetary gears (17, 18) rotate and revolve without the rotation of the internally toothed ring gear (19) being restricted, rotation that is not decreased is output from the planetary carrier (16). The rotation of the internally toothed ring gear (19) is restricted and freed by a meshing pawl (35) by means of a load sensing mechanism (22). Rotation of the planetary carrier (16) is output by way of a plate (23) comprising a slider, load springs (24, 25), and a plate (30) comprising a cam.

Classes IPC  ?

• B66D 3/16 - Dispositifs à chaînes ou à éléments similaires manœuvrés manuellement, avec ou sans mécanisme de transmission entre l'organe de manœuvre et la corde, la chaîne ou le câble de hissage actionnés par une chaîne sans fin passant sur une poulie ou un pignon denté
• B66D 3/22 - Palans à moteur à moteur d'entraînement, p. ex. le moteur électrique, tambour ou cylindre dans le même carter à mécanisme de variation de vitesse entre moteur d'entraînement et tambour ou cylindre