Bevel gear and differential device therewith
AssigneeGKN Driveline Japan Ltd.
InventorsMasaaki Fusegi, Yasuo Yamanaka
Life of this patent
Estimating the term…
Abstract
A bevel gear used in a differential device for a vehicle is comprised of: a body having an axis, a conical pitch surface around the axis, an opposite surface opposed to the conical pitch surface, and a side surface around the axis; gear teeth formed on the pitch surface, each of the gear teeth having a top land projecting from the pitch surface; and clutch teeth formed on the opposite surface, each of the clutch teeth having a bottom land standing back from the opposite surface, each of the bottom lands of the clutch teeth being aligned with any of the top lands of the gear teeth in a line parallel to the axis.
Claims4
A bevel gear comprising:
- a body having an axis, a conical pitch surface around the axis, an opposite surface opposed to the conical pitch surface, and a side surface around the axis;
- gear teeth formed on the pitch surface, each of the gear teeth having a top land projecting from the pitch surface;
- and
- clutch teeth formed on the opposite surface, each of the clutch teeth having a bottom land axially recessed from the opposite surface, each of the bottom lands of the clutch teeth being aligned with a respective one of the top lands of the gear teeth in a line parallel to the axis.
A differential device for differentially distributing a driving force to first and second axles, the differential device comprising:
- a casing rotatable about an axis;
- a differential gear set configured to allow differential motion between the first and second axles, the differential gear set being housed in and drivingly coupled with the casing and including a first and a second side gears respectively coupled with the first and second axles, one selected from the group consisting of the first and second side gears including:
- a body having a conical pitch surface around the axis, an opposite surface opposed to the conical pitch surface, and a side surface around the axis;
- gear teeth formed on the pitch surface, each of the gear teeth having a top land projecting from the pitch surface;
- and
- clutch teeth formed on the opposite surface, each of the clutch teeth having a bottom land axially recessed from the opposite surface, each of the bottom lands of the clutch teeth being aligned with a respective one of the top lands of the gear teeth in a line parallel to the axis;
- and
- a clutch device configured to controllably engage with the clutch teeth to restrict the differential motion.
Dependencies are inferred from the claim text.