High torque motor key
OwnerMarc Kyleinventor
Life of this patent
Estimating the term…
Abstract
Tire making machines and driven assemblies for use in a tire making machine. The driven assembly includes a motor having a drive shaft. The drive shaft extends along a length and has a keyway extending along a portion of the length. The keyway includes a bottom surface, sidewalls, and a ramp surface. The driven assembly also includes a driven hub operatively connected to the drive shaft and having a hub keyway. A key is received in the keyway and the hub keyway for operatively connecting the drive shaft and the driven hub. The key includes a bottom surface, side surfaces, and a curved surface. The curved surface and ramp surface include transverse sections having a curved profile, and the curved surface fits into the ramp surface.
Claims18
A tire making machine comprising:
- a motor including a drive shaft, the drive shaft including a keyway having a keyway bottom surface extending along a longitudinal direction, the keyway bottom surface including a substantially planar portion and an arcuate ramp portion;
- a driven member coupled to the drive shaft for rotation therewith;
- and
- a key configured to seat in the keyway to operatively couple the motor and the driven member, the key including opposed side surfaces and a bottom surface extending between the opposed side surfaces and having a substantially planar segment and a curved surface segment, the curved surface segment having rounded edges where it intersects the opposed side surfaces;
- wherein when the key is seated in the keyway, the bottom surface of the key is coextensive with the keyway bottom surface along the longitudinal direction such that the curved surface segment engages the arcuate ramp portion and the substantially planar segment engages the substantially planar portion.
A driven assembly for use in a tire making machine, the driven assembly comprising:
- a motor having a drive shaft, the drive shaft extending along a length and having a keyway extending along a portion of the length, the keyway including a bottom surface, sidewalls, and a ramp surface,
- a driven hub operatively connected to the drive shaft and having a hub keyway,
- and a key received in the keyway and the hub keyway for operatively connecting the drive shaft and the driven hub, the key including a bottom surface, side surfaces, and a curved surface,
- wherein the curved surface and the ramp surface each include transverse sections having a curved profile, and
- wherein the curved surface fits into the ramp surface.
Dependencies are inferred from the claim text.