Patent ID: 6880677
Filing Date: 2005-04-19
Classification: F03G

Abstract:
1. An elastic energy storage device comprising a casing, an energy storage unit installed within the casing; the energy storage unit having an axial rod penetrating through a plurality of rotary disks and a plurality of spiral springs; one side of each rotary disk being protruded with an outer edge buckling post and another side thereof is installed with an inner edge buckling post; every two rotary disks being installed with a spiral spring; the inner edge buckling post and outer edge buckling post being buckled to the spiral springs; a unidirectional power output shaft installed at an outer side of the casing for driving the first rotary disk of the energy storage unit to rotate; a speed change box installed within the casing and having an input shaft and an output shaft; the output shaft protruding out of the casing; the speed change box being installed with a plurality of gears therewithin; the input shaft being connected or engaged to the rotary disk of the energy storage unit; one of the rotary disks of the energy storage unit at an innermost side has a function of driving the input shaft to rotate; and thereby, the at least one spiral spring stores energy and then released the energy steadily; a flywheel being installed to an output shaft of the speed change box for storing energy from the output shaft and releasing the energy steadily; the flywheel being braked by a brake.