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US 2006/0213746 A1Published application
Clutch drum and method for manufacturing such clutch drum
AssigneeNSK-Warner K.K.
InventorHirofumi Nakagomi
Life of this patent
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Abstract
The present invention provides a clutch drum which is provided at its inner periphery with splines by which friction plates are engaged and wherein each of the splines has a tooth tip having a curved surface at one circumferential edge thereof.
Claims7
A clutch drum which is provided at its inner periphery with a spline by which a friction plate is engaged, wherein:
- said spline has a tooth tip having a curved surface at one circumferential edge thereof.
A clutch apparatus comprising:
- a clutch drum provided at its inner periphery with splines;
- a plurality of friction plates each of which is provided at its outer periphery with teeth engaged by said splines;
- separator plates arranged alternately with said friction plates in an axial direction;
- and
- a piston for applying an urging force in order to engage said friction plates and said separator plates with each other;
- and wherein
- each of said splines has a tooth tip having a curved surface at one circumferential edge thereof and each of said teeth of said friction plate has a tooth root having a curved surface at one circumferential edge thereof, and said tooth tip and said tooth root are complementary to each other.
4 more elements
A clutch apparatus comprising:
- a clutch drum provided at its inner periphery with splines;
- a plurality of friction plates each of which is provided at its outer periphery with teeth engaged by said splines;
- separator plates arranged alternately with said friction plates in an axial direction;
- and
- a piston for applying an urging force in order to engage said friction plates and said separator plates with each other;
- and wherein
- each of said splines has a tooth tip having a curved surface at one circumferential edge thereof, and an oil path through which oil flows is defined between said spline and said friction plate at a side of said tooth tip having said curved surface.
4 more elements
Dependencies are inferred from the claim text.