Patent ID: 9157693
Filing Date: 2015-10-13
Classification: F41B

Abstract:
1. An archery apparatus comprising: a fixed transmission component having an axis; a first cam, a second cam, a drive shaft, and an output shaft configured to rotate around the axis relative to the fixed transmission component; a first coupling mechanism configured to couple the first cam and the drive shaft in response to rotation of the first cam in a first direction, the first cam free to rotate independently of the drive shaft in a second direction opposite of the first direction; a reduction transmission component configured to couple the drive shaft to the output shaft with a mechanical advantage over the output shaft; a second coupling mechanism configured to couple the second cam and the output shaft in response to rotation of the output shaft in the first direction and decouple the second cam and the output shaft in response to rotation of the second cam in the first direction past a selection point to free the second cam to rotate independently of the output shaft in the second direction; and a third coupling mechanism configured to couple the first cam and the second cam in response to rotation of the second cam in the first direction past the selection point.