A rotational drive device that provides both variable levels of adjustable rotational resistance and also selective direction in which the resistance acts. The device has two mutually rotatable members each having a grasping handle. One member has a shaft serving as an axle for rotatably supporting
A rotational drive device that provides both variable levels of adjustable rotational resistance and also selective direction in which the resistance acts. The device has two mutually rotatable members each having a grasping handle. One member has a shaft serving as an axle for rotatably supporting the second member. A nut threads to the end of the shaft. When tightened, the nut imparts axially compressive forces urging the two rotatable members towards one another. The base rotatable member has a ramped member facing a corresponding opposed ramped member rotatably supported on the shaft. When the ramped members are rotated relative to one another, overall axial length of the base member is adjusted. This adjustment selectively modifies resistance to rotation of the rotatable members. A clutch device selectively transmits resistance forces when one rotatable member is rotated relative to the other in a first direction, in a second direction, and in both directions. When one direction is selected, the two members rotate with minimal resistance. The clutch has curved cam surfaces which bind in a smooth, stepless manner without causing chattering and vibration typical of pawl ratchets.
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A rotational drive device that provides both variable levels of adjustable rotational resistance and also selective direction in which the resistance acts. The device has two mutually rotatable members each having a grasping handle. One member has a shaft serving as an axle for rotatably supporting
A rotational drive device that provides both variable levels of adjustable rotational resistance and also selective direction in which the resistance acts. The device has two mutually rotatable members each having a grasping handle. One member has a shaft serving as an axle for rotatably supporting the second member. A nut threads to the end of the shaft. When tightened, the nut imparts axially compressive forces urging the two rotatable members towards one another. The base rotatable member has a ramped member facing a corresponding opposed ramped member rotatably supported on the shaft. When the ramped members are rotated relative to one another, overall axial length of the base member is adjusted. This adjustment selectively modifies resistance to rotation of the rotatable members. A clutch device selectively transmits resistance forces when one rotatable member is rotated relative to the other in a first direction, in a second direction, and in both directions. When one direction is selected, the two members rotate with minimal resistance. The clutch has curved cam surfaces which bind in a smooth, stepless manner without causing chattering and vibration typical of pawl ratchets. cted with at least one member of said first or second planetary gearsets; a third planetary gearset having a first member continuously connected with said input shaft, a second member continuously connected with a stationary housing of said transmission, and a non-continuously interconnected third member, one of said first and third members being a faster rotating member and the other of said first and third members being a slower rotating member; a first torque transmitting mechanism operatively selectively connectable between said slower rotating member and at least one member of said first and second planetary gearsets; a second torque transmitting mechanism operatively selectively connectable between said faster rotating member and at least one member of said first and second planetary gearsets; third, fourth, and fifth torque transmitting mechanisms; and only said five torque transmitting mechanisms being selectively engaged in combinations of two to establish at least six forward speed ratios and one reverse speed ratio between said input shaft and said output shaft. 2. The transmission defined in claim 1 further wherein: said first member of said first planetary gearset is a member selected from a group consisting of a sun gear member, a ring gear member, and a planet carrier assembly member; said second member of said first planetary gearset is a member selected from a group consisting of a sun gear member, a ring gear member, and a planet carrier assembly member that is not said first member; and said third member of said first planetary gearset is a member selected from a group consisting of a sun gear member, a ring gear member, and a planet carrier assembly member that is not one of said first member, and said second member. 3. The transmissions defined in claim 1 further wherein: said first member of said second planetary gearset is a member selected from a group consisting of a sun gear member, a ring gear member, and a planet carrier assembly member; said second member of said second planetary gearset is a member selected from a group consisting of a sun gear member, a ring gear member, and a planet carrier assembly member that is not said first member of said second planetary gearset; and said third member of said second planetary gearset is a member selected from a group consisting of a sun gear member, a ring gear member, and a planet carrier assembly member that is not one of said first member, and said second member of said second planetary gear set. 4. The transmissions defined in claim 1 further wherein: said first member of said third planetary gearset is a member selected from a group consisting of a sun gear member, a ring gear member, and a planet carrier assembly member; said second member of said third planetary gearset is a member selected from a group consisting of a sun gear member, a ring gear member, and a planet carrier assembly member that is not said first member; and said third member of said third planetary gearset is a member selected from a group consisting of a sun gear member, a ring gear member, and a planet carrier assembly member that is not one of said first member, and said second member. 5. A transmission comprising: an input shaft adapted to deliver power; an output shaft adapted to deliver power from said transmission; a stationary transmission housing adapted to enclose said transmission; a planetary gear arrangement comprising three planetary gearsets, three selectively engageable rotating torque transmitting mechanisms, two stationary torque transmitting mechanisms, a first interconnecting member, and a second interconnecting member; each of said planetary gearsets comprising first, second, and third members, said first members of said first and second planetary gearsets being continuously interconnected by said first interconnecting member, said second members of said first and second planetary gearsets being continuousl
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Gallant Raymond J., Dynamic tensioner for physiological sculpting.
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