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US 10,232,922 B2Granted
Reversing gear drive
OwnerJohn Ycasinventor
Life of this patent
Estimating the term…
Abstract
The present disclosure is directed to a gear system/reversing gearbox that allows reversing the direction of pivotal rotation between first and second shafts (i.e., about a pivot axis transverse to long axis of the shafts) while also translating at least some axial rotation between the shafts. In one exemplary application, the gear system is utilized in forward rowing system that allows a rowing motion substantially identical to a rearward rowing system.
Claims21
A reversing gearbox comprising:
- a first arm and a second aim pivotally connected to a common pivot axis of the gearbox, wherein each arm is substantially transverse to said pivot axis and configured to rotate about said pivot axis;
- a first shaft having a first end fixedly connected to said first arm and having a second end connected to a first gear, wherein a rotation axis of said first shaft and said first gear is substantially aligned with said pivot axis;
- a second shaft coaxially disposed about a portion of said first shaft and having a first end fixedly connected to said second arm and having a second end connected to a second gear, wherein a rotation axis of said second shaft and said second gear is substantially aligned with said pivot axis;
- at least one idler gear disposed between and engaging said first gear and said second gear, wherein said idler gear translates rotational motion of said first arm in first direction about said pivot axis to a rotational motion of said second arm in a second direction about said pivot axis.
1 more element
A reversing gearbox comprising:
- a first arm attached to a first rotational shaft of the gearbox and configured to rotate in a first plane transverse to a first rotational axis of said first rotational shaft;
- a second arm attached to a second rotational shaft of the gearbox and configured to rotate in a second plane transverse to a second rotational axis of said second rotational shaft, wherein said first rotational axis and said second rotational axis are aligned to define a common axis and wherein said first plane and said second plane are offset;
- first and second gears attached to said first and second shafts, respectively, wherein rotation axes of said first and second gears are substantially aligned with said common axis;
- and
- at least one idler gear disposed between and engaging said first gear and said second gear, wherein said idler gear translates rotational motion of said first arm in first direction about said common axis to a rotational motion of said second arm in a second direction about said common axis.
2 more elements
Dependencies are inferred from the claim text.