Gear pair
AssigneeMusashi Seimitsu Industry Co., Ltd.
InventorsShiryu KATOH, Shinya MATSUOKA
Life of this patent
Estimating the term…
Abstract
In a gear pair in which a first gear and a second gear having a greater number of teeth than the first gear share a meshing line of teeth that mesh with each other, at least a part of the meshing line includes a region where a pressure angle is not constant, the pressure angle monotonously decreases in a section of the meshing line from a pitch point to an end point on a tooth-top side of the first gear, and a relative curvature of tooth profile curves of the first and second gears in the section of the meshing line from the pitch point to the end point on the tooth-top side of the first gear is smaller than or equal to a maximum value of the relative curvature in a section from the pitch point to an end point on a tooth-root side of the first gear.
Claims9
A gear pair comprising:
- a first gear and a second gear having a larger number of teeth than the first gear, the first gear and the second gear sharing a meshing line of teeth that mesh with each other, wherein
- at least a part of the meshing line includes a region where a pressure angle is not constant,
- the pressure angle monotonously decreases in a section of the meshing line from a pitch point to an end point on a tooth-top side of the first gear, and
- a relative curvature of tooth profile curves of the first and second gears in the section of the meshing line from the pitch point to the end point on the tooth-top side of the first gear is smaller than or equal to a maximum value of the relative curvature in a section from the pitch point to an end point on a tooth-root side of the first gear.
A gear pair comprising:
- a first gear and a second gear having a larger number of teeth than the first gear, the first gear and the second gear sharing a meshing line of teeth that mesh with each other, wherein
- at least a part of the meshing line includes a region where a pressure angle is not constant,
- the pressure angle is constant in a section of the meshing line from a pitch point to an end point on a tooth-top side of the first gear, and the pressure angle monotonously increases in a section of the meshing line from the pitch point to an end point on a tooth-root side of the first gear, and
- a relative curvature of tooth profile curves of the first and second gears in the section of the meshing line from the pitch point to the end point on the tooth-top side of the first gear is smaller than or equal to a maximum value of the relative curvature in the section from the pitch point to the end point on the tooth-root side of the first gear.
Dependencies are inferred from the claim text.