Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Gear shiftable axially to disconnect or vary ratio
Patent
1998-04-21
2000-07-25
Marmor, Charles A
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Gear shiftable axially to disconnect or vary ratio
475339, 475311, 408124, 173216, 464 36, F16H 356
Patent
active
060931302
ABSTRACT:
A multi-speed transmission for electrical power tools with a rotatable tool has a machine housing, a working spindle supported in the housing for rotating the tool, an electric motor, a gear reducer shaft which is driven by the electric motor, a planetary transmission arranged between the working spindle and the gear reducer shaft, the planetary transmission including a sun gear, planetary gears and a planetary gear carrier, the planetary gear carrier being coupled with the gear reducer shaft, the sun gear being formed switchably so that it is coupled for joint rotation with the machine housing for a slower speed and with the working spindle for a faster speed.
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Buck Manfred
Fehrle Siegfried
Schmidt Juergen
Marmor Charles A
Parekh Ankur
Robert & Bosch GmbH
Striker Michael J.
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