APPARATUS UTILIZING PLANETARY GEARSET COUPLED TO A CONSTANT TORSION SPRING

摘要

A gearbox includes a planetary gearset, an input shaft coupled to a sun gear of the planetary gearset, and an output shaft coupled to planet gears of the planetary gearset via a carrier. A constant torsion spring is coupled to a ring gear of the planetary gearset. The constant torsion spring is capable of preventing the ring gear from moving when a torque at the output shaft is below a threshold. The ring gear winds the constant torsion spring in response to the torque exceeding the threshold.

主权项

1. An apparatus comprising:
a planetary gearset comprising a rotatable ring gear; an input shaft coupled to a sun gear of the planetary gearset; an output shaft coupled to planet gears of the planetary gearset via a carrier; and a constant torsion spring coupled to the ring gear, the constant torsion spring storing energy via the ring gear if a torque level at the output shaft exceeds a threshold.