Exercise rowing machine
Номер патента: CA1296029C
Опубликовано: 18-02-1992
Автор(ы): Calvin Thomas Coffey
Принадлежит: Individual
Опубликовано: 18-02-1992
Автор(ы): Calvin Thomas Coffey
Принадлежит: Individual
Реферат: Inventor: CALVIN COFFEY Title: EXERCISE ROWING MACHINE Abstract of the Disclosure An exercise rowing machine uses a flywheel as a resistance member and has cam sector arms which are pivoted to rotate with the machine's oars. A bicycle-type chain is pulled to drive a sprocket drive on the flywheel when the oars are stroked. The arcuate shape of the cam sector arms provides a constant resistance force to the stroke of the oars over the oar sweep. The position of the foot stretcher plate is adjustable. A shroud for the flywheel has an adjustable throttle or shutter to control air flow and thus adjust the amount of resistance.
Resistance System for a Rowing Machine
Номер патента: US20200197739A1. Автор: HSIEH HSIAO-CHIEH. Владелец: . Дата публикации: 2020-06-25.